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NASA Contractor Report 191489
Radiometer Offsets and Count ConversionCoefficients for the Earth Radiation BudgetExperiment (ERBE) Spacecraft for the Years1987, 1988, and 1989
Jack Paden, Dhirendra K. Pandey,Joseph C. Stassi, Robert Wilson,William Bolden, Susan Thomas, M. Alan Gibson
Science Applications International Corporation (SAIC)One Enterprise Parkway, Suite 250Hampton, Virgina 23666-5845
Contract NAS1-19570July 1993
National Aeronautk::s and
Space Administration
Langley Research Center
Hampton, Virginia 23681-O001
(NASA-CR-191689) RADIOMETER
OFFSETS AND COUNT CONVERSION
COEFFICIENTS FOR THE EARTH
RADIATION BUDGET EXPERIMENT (ERBE)
SPACECRAFT FOR THE YEARS 198T,
1988, AND lq89 Final Report
(Science Applications International G3/47
Corp. ) 213 p
N96-12772
Unclas
0182695
https://ntrs.nasa.gov/search.jsp?R=19940008300 2020-03-14T17:06:08+00:00Z
Radiometer Offsets and Count Conversion Coefficients for
the Earth Radiation Budget Experiment (ERBE) Spacecraft forthe Years 1987, 1988, and 1989
Jack Paden, Dhirendra K. Pandey,
Joseph C. Stassi, Robert Wilson,William Bolden, Susan Thomas, M. Alan Gibson
Science Applications International Corporation (SAIC)One Enterprise Parkway Suite 250
Hampton, Virginia 23666-5845
Contract Number NAS 1-19570
TABLE OFCONTENTS
SECTION PAGE
ACRONYMS ............................................................................................................................... v
SYMBOLS .................................................................................................................................. vi
1.0 Introduction ......................................................................................................................... 1
2.0 Scanning Radiometers ........................................................................................................ 1
2.1 Ground Offsets and the Scanner Count Conversion Algorithm ................................... 2
2.2 ERBS Scanner Offset Procedures ................................................................................ 3
2.3 NOAA Scanner Offset Procedures ............................................................................... 3
2.3.1 NOAA-9 Scanner Offset Procedures ................................................................. 7
2.3.2 NOAA-10 Scanner Offset Procedures ............................................................... 7
2.4 Significant Events ........................................................................................................ 8
2.4.1 Significant Events: ERBS .................................................................................. 8
2.4.2 Significant Events: NOAA-9 ............................................................................. 9
2.4.3 Significant Events: NOAA-10 ........................................................................... 9
3.0 Nonscanning Radiometers ................................................................................................... 9
3.1 Nonscanner Count Conversion Algorithms ............................................................... 10
3.1.1 Dome Degradation Corrections ........................................................................ 11
3.2 Ground Offsets ........................................................................................................... 15
3.3 In-Flight Offsets ......................................................................................................... 16
3.3.1 Total Channels .................................................................................................. 16
3.3.2 Shortwave Channels ......................................................................................... 17
3.4 Final Count Conversion Coefficients ......................................................................... 17
REFERENCES ........................................................................................................................... 18
FIGURE
1
2
3
LIST OF FIGURES
PAGE
ERBE Scanner Elevation Angles ................................................................................. 2
ERBS Scanner Offsets - Total Channel ....................................................................... 4
ERBS Scanner Offsets - Longwave Channel ................ : .............................................. 5
1t
PRECEDIN_ P/_E PLANK NOT FILMEL;
TABLE OF CONTENTS (concluded)
FIGURE
4
5
6
7
8
PAGE
ERBS Scanner Offsets - Shortwave Channel ............................................................... 6
ERBE Nonscanning Sensor Module .......................................................................... 10
ERBS Solar Calibration Data ..................................................................................... 12
NOAA-9 Solar Calibration Data ................................................................................ 13
NOAA-10 Solar Calibration Data .............................................................................. 14
TABLE
1
LIST OF TABLES
ERBE Nonscanner Ground Coefficients .................................................................... 15
A
B
C
D
E
F
G
H
I
J
K
APPENDICIES
ERBS Scanner Offset Tables ..................................................................................... 21
NOAA-9 Scanner Offset Tables ................................................................................ 23
NOAA- 10 Scanner Offset Tables .............................................................................. 29
NOAA-9 Scanner Offset Surface Plots ...................................................................... 31
NOAA-10 Scanner Offset Plots ................................................................................ 35
ERBS Nonscanner Offset Calibration Plots ............................................................... 41
NOAA-9 Nonscanner Offset Calibration Plots .......................................................... 45
NOAA-10 Nonscanner Offset Calibration Plots ........................................................ 49
ERBS Nonscanner Offsets (Merge) ........................................................................... 53
NOAA-9 Nonscanner Offsets (Merge) .................................................................... 125
NOAA- 10 Nonscanner Offsets (Merge) .................................................................. 127
iv
Acronym
ERBE
ERBS
FOV
FOVL
IBB
IVT
LaRC
LW
MFOV
MRBB
N.A.
NASA
NOAA
S.P.
SW
SWICS
T
WFOV
LIST OF ACRONYMS
Definition
Earth Radiation Budget Experiment
Earth Radiation Budget Satellite
Field-Of-View
Field-Of-View Limiter
Internal Blackbody
Instrument Validation Tape
Langley Research Center (NASA, Hampton, VA)
Longwave
Medium Field-Of-View
Master Reference Blackbody
Not Applicable
National Aeronautics and Space Administration
National Oceanic and Atmospheric Administration
Scan Position
Shortwave
Shortwave Internal Calibration Source
Total
Wide Field-Of-View
AE
AF
Av
AR
B
Esw
ET
TA
TH
TF
V
VR
LIST OF SYMBOLS
Gain due to LW heating of SW filter dome
Gain due to FOVL temperature
Gain due to active cavity
Gain due to reference cavity
Offsets
The radiance measured by the shortwave channel
The radiance measured by the total channel
The Aperture Temperature
The Heater Temperature
The FOVL temperature
The detector voltage
The Reference Cavity (Calibration) Heater Voltage
vi
1.0 INTRODUCTION
The NASA Earth Radiation Budget Satellite (ERBS) spacecraft was launched into a 57 degree
inclination, geocentric orbit on 5 October 1984. The National Oceanographic and Atmospheric
Administration (NOAA)-9 spacecraft was launched into a polar, Sun-synchronous, geocentric,
"noon/midnight" orbit on 12 December 1984. The NOAA-10 satellite was launched into a polar,
Sun-synchronous, geocentric, "terminator" orbit on 17 September 1986. Offsets and count
conversion coefficients for the ERBE satellites for the years 1985, 1986, and 1987 were published
in NASA LaRC Contractor Report 187589 (Reference 1), dated May 1991, and this report may be
considered to be a logical extension of that one.
2.0 _;CANNING RADIOMETERS
The relative positions of the scanner at various elevation angles are shown in Figure 1. The
complete design and method of operation of the scanners was described by Carman (Reference 2)
and Kopia (Reference 3). Data for scanner offsets are obtained from pre-Processed Archival Tapes
(also called pre-PATs or ID-3s) produced by the ERBE Merge Subsystem. The Merge Subsystem
and the ERBE scanner count conversion process is fully described by Stassi et al. (Reference 4).
An ERBE telemetry record consists of data measurements over a 16-second period. The ERBE
scanners complete one scan every four seconds; hence, there are four scans in each telemetry
record. A space-view is obtained every scan and is the source of the "space clamp" offset. Drift
in the "space clamp" over the scan is adjusted. The scan position offsets are those listed in this
report. It is important to mention that the scan positions referred to in this report, which range from
1 to 60, are known as the "Earth-viewing" scan positions, and they differ from the sample numbers
listed in other documents (e.g., Section 4, Reference 8), which range from 1 to 74. The conversion
from the "Earth-viewing" scan position to sample number is performed by adding 8 to the scan
position. Thus, sample numbers 1 to 7 are the "space-viewing" positions, 8 to 68 are "Earth-
viewing", and 69 to 74 are the "internal blackbody (IBB) viewing" positions. The nadir position
in the "Earth-viewing" system is scan position 34, and it is sample number 42.
MIRROR ATTENUATOR MOSAIC (MAM)
+ZEL0O__--..t-_ _ _ ilk " _ 11,2 _ _ 180 °
• _ _l_lJ__ 1630SPACE
14oSPACE _ "'_000 _ _-'i----'_"_'_ _ LOOK
LOOK " I" ___ c _ "_ " _ 1580 END OF
," ,.2°S.ORTSCA.+'-'-XE L BOX BEAM
STRUCTURE90°NADIR
,.,.,....._._._..._ C W
Figure 1. ERBE Scanner Elevation Angles
2.1 GROUND OFFSETS AND THE SCANNER COUNT CONVERSION ALGORITHM
The ERBE Science Team (Reference 5) modeled and determined the count conversion coefficients
(Reference 6) using the TRW ground calibration data documented by Hendricks (References 7, 8,
and 9) for all ERBE scanning sensors. A more detailed description of the scanner count
conversion process is given by Lee et al. (Reference 10). The accuracy of the ERBE scanners was
shown by Lee et al. (Reference 11) to be within 1%. Stassi et al. (Reference 4) detailed the
software applications of the count conversion algorithms as they are used by the ERBE Merge
Subsystem. In abbreviated form, the following equation characterizes the scanner count conversion
algorithm used:
E$ClHI = GAIN * (raw counts - (scan position + space clamp count
offset))+ scan offset for the record + drift offset for the scan
where: GAIN =AV =VB =CVLT =
(AV/VB)*CVLT andaconstantfor thechanneldeterminedfrom groundcalibrationdata.
biasvoltagecountsfor thechannelacounts-to-voltageconversionfactor(=1/409.5)
Greenet al. (Reference12)discusstheprocessof invertingthesatelliteattitudemeasurementsto
thetop-of-the-atmosphere(TOA).
2.2 ERBS SCANNER OFFSET PROCEDURES
It has been verified, by using space-view data from in-flight pitch-up maneuvers, that the ERBS
in-flight scanner offsets remain the same as the ground offsets. Major differences were found,
however, between the scanner offsets when operated at the along-track azimuth position and those
found when operated in the cross-track position. Appendix A contains the ERBS cross-track and
along-track scanner offsets. All ERBE scanner operations for the period described in this
publication were in the cross-track mode. Plots of these filtered offsets are shown in Figures 2, 3,
and 4.
2.3 I'qOAA SCANNER OFFSET PROCEDURES
The procedures used in the determination of the in-flight offsets for the ERBE NOAA satellites
were developed by Mr. Lee Avis (Reference 13) of the Atmospheric Sciences Division at the
NASA Langley Research Center (LaRC). The procedures include:
1. Accepting the ERBS measurements as "truth"
2. Comparing ERBS measurements to those of NOAA-9 or NOAA-10
3. Assume differences are offset errors
4. Adjust the NOAA measurements using the measured differences
The procedures are unique to the scanner instruments. The NOAA-9 and NOAA-10 scanner
offsets were produced only for scan positions 5 - 60 because scan positions 1 - 4 are either space
scans or are space contaminated. Detailed procedures are outlined in the following paragraphs.
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2.3.1 NOAA-9 SCANNER OFFSET PROCEDURES
For selected days during the month, when the ERBS averaged radiance profile is approximately
Lambertian and the ERBS and NOAA-9 satellite orbits intersect in darkness, averages of the
differences in the two readings for each scan position (corrected for differences in satellite altitude)
were determined. These "offsets" are called the "benchmark" offsets and represent the amount by
which the NOAA-9 measured radiances must be corrected to produce the "corrected to ERBS"
values. The NOAA-9 offsets for each day, or for a group of days, are determined by applying the
"benchmark" offsets to the NOAA-9 readings for the "benchmark" day or days, averaging if more
than one day is involved, and taking the difference between these "corrected to ERBS" NOAA-9
radiances and the measured NOAA-9 radiances on the day in question. The NOAA-9 scanner
offsets, generated by using the "Avis" method (Reference 13)just described, are shown in
Appendix B of this report. In the listings contained in Appendix B, there are occasional columns
which are filled with asterisks. In those cases, there either were no data for the day in question, or
the data were not reduced.
2.3.2 NOAA-10 SCANNER OFFSET PROCEDURES
In the case of the NOAA- 10 satellite, scanner offsets are necessarily produced in a different manner
than those for NOAA-9 because in the NOAA-10 terminator orbit, there are few intersections in
darkness; and because the NOAA-10 offsets have been found to be sensitive to scanner azimuth
angle, which was set at either 0 or 35 degrees. Therefore, to determine NOAA-10 offsets, the
NOAA-9 procedures were modified to use an average of all offsets for days which contain
nighttime intersection data during the period under consideration (i.e., the period when the scanner
azimuth angle remains fixed at either 0 or 35 degrees). These averaged data were then used as the
NOAA-10 offsets for each day of the entire period. The NOAA-10 scanner offsets which were
generated using the modified procedures method, are shown in Appendix C of this report. Offset
plots for the ERBS, NOAA-9, and NOAA-10 scanners are shown in Appendices E and F,
respectively. Since ERBS offsets did not vary with time, the ERBS plots are 2-dimensional.
NOAA-9 offsets are shown in surface plots because they changed daily. NOAA- 10 offsets varied
only when the scanner azimuth angle changed; therefore, only two different sets were used.
2.4 SIGNIFICANT EVENTS
During the lifetimes of the three ERBE satellites, there were periods when the satellites did not
function "normal" in the Earth-viewing mode. Some of these special measurement events were
planned, such as the biweekly internal calibrations and operations in the along-track (or
pushbroom) mode, others were not. The most significant of these events are described in the
following paragraphs.
2.4.1 SIGNIFICANT EVENTS: ERBS
1987 - During the month of February, from the 15th to the 25th; during the month of June, from
the 3rd to the 17th; during the month of August, from the 17th to the 27th; and during the month
of December, from the 3rd to the 17th; the ERBS scanner was operated at an azimuth angle of 145"
(i.e., the "hot-orbit" position). At all other times during the year, the scanner was operated at the
"normal" cross-track azimuth angle of 180`'. The scanner operated in "normal Earth-scan" mode,
and the nonscanner operated with azimuth and elevation angles of 0" for the entire year. On 2 July
1987, during a scheduled in-flight orientation, change control of the spatial orientation of the
ERBS spacecraft was lost. To prevent damage to the instrument, power was turned off. Control
was regained on 4 July. When the instrument was powered-up, the offsets for the nonscanner
detectors were found to have shifted.
1988 - During the month of February, from the 14th to the 24th; during the month of June, from
the 2nd to the 16th; during the month of August, from the 15th to the 25th; and during the month
of December, from the 2nd to the 15th; the ERBS scanner was operated at an azimuth angle of
145". At all other times during the year, the scanner was operated at the normal cross-track
azimuth angle of 180". The scanner operated in the normal Earth-scan mode, and the nonscanner
operated with azimuth and elevation angles of 0" for the entire year.
1989 - During the month of February, from the 13th to the 23rd; during the month of June, from
the 1st to the 15th; during the month of August, from the 14th to the 24th; and during the month of
November, from the 30th to the 14th of December; the ERBS scanner was operated at an azimuth
angle of 145". At all other times during the year, the scanner was operated at the normal cross-
8
trackazimuthangleof 180°. Thescanneroperatedin thenormalEarth-scanmode,andthe
nonscanneroperatedwith azimuthandelevationanglesof 0° for theentireyear.
2.4.2 SIGNIFICANTEVENTS: NOAA-9
The scanner instrument failed at 18:49;12 on 20 January_ 1987. Thereafter, there are no scanner
offset data for the NOAA-9 satellite.
2.4.3 SIGNIFICANT EVENTS; NOAA-10
Because of the orientation of the Sun in relation to the NOAA-10 scanning plane in this terminator
orbit, the scanner azimuth angle must be changed periodically to prevent scanning of the solar disk.
On 1 January 1987, the scanner was operating at an azimuth angle of 35 ° and remained so until
17:44 on 21 April 1987, when it was changed to 0 °, where it stayed until 12:38 on 31 August 1987.
At that time the scanner azimuth was again set to 35 ° , where it remained until 13:31 on 19 April
1988, when it was again returned to 0 °. The scanner azimuth remained at 0 ° until 20:42 on 29
August 1988, when it was again set to 35 ° . The scanner remained at an azimuth of 35 ° until 13:15
on 16 April 1989, when it was returned to 0 °. The scanner remained at a 0 ° azimuth until the
in_Tument failed at 17:03:26 on 22 May 1989. Thereafter, there are no scanner offset data for the
NOAA- 10 satellite.
3.0 NONSCANNING RADIOMETERS
The ERBE nonscanning sensor module is illustrated in Figure 5. The complete design and method
of operation for the nonscanners was described by Carman (Reference 14) and Luther et al.
(References 15 and 16). The TRW ground calibration data for the ERBS, NOAA-9, and NOAA-
10 nonscanners were documented by Fellner et al. (References 17, 18, and 19). The ERBE Science
Team and Halyo et al. (References 5 and 6) designed, modeled, and developed count conversion
equations to represent the TRW ground calibration data. They also produced the final count
conversion coefficients for all nonscanning sensors. For the most part, nonscanner offsets were
produced for every usable calibration day. The normal nonscanner calibration frequency was once
every two weeks.
CAVITY
ELEVATIONBEAM
HEAT SINK
INSULATOR
SPACER
SUBSTRATE
FIELD LIMITINGAPERTURE
I
PRIMARYI FILTER APERTURE
DOME
Figure 5. ERBE Nonscanning Sensor Module
3.1 NONSCANNER COUNT CONVERSION ALGORITHMS
The equations used in the determination of nonscanner offsets were developed by the ERBE
Science Team and are as foiling, s:
TOTAL CHANNELS (WFOV & MFOV)
ET = A v . V 2 = A F • T F + A R • V 2 + B T (1)
SHORTWAVE CHANNELS (WFOV & MFOV)
Esw = A v.V 2+A F.T F+A E-E T+A 2+Bsw (2)
The in-flight total channel count conversion coefficients, except for the B T offset term, remain the
same as the ground coefficients. The offset term, BT, was recalculated using in-flight calibration
data. However, because of degradation of the transmissivity of the Suprasil dome used to block
10
longwaveradiationfrom enteringtheactivecavityof theshortwavechannel,eachcountconversioncoefficientfor theshortwavechannelismodifiedasdescribedin paragraph3.1.1.
Theshortwaveoffsetterm,Bsw,is thenrecalculatedusingthein-flight dataasdescribedin
paragraph3.3.
3.1.1 DOME DEGRADATIONCORRECTION
Thetransmissivitydegradationcausedby solarexposureof thedomeis computedfor each
calibrationday. Themethodof correctionof theshortwavedatato compensatefor thisdome
degradationis accomplishedby usingtherelationship:
where:
A(t)
A(t)
S(to)
s(t)
A
= {s(to)/S(t)}-A
= "corrected"in-flight shortwavecoefficient
= measuredsolarirradianceonday0
= measuredsolarirradianceonday t
= groundcoefficientfor thetermin question
Thefactor{s(t0)/s(t)}is sometimesreferredto asthedomedegradationfactor. It is anumber
(normallygreaterthan1)whichrepresentstheamountby whichthegroundcoefficient,A, must
beincreasedto compensatefor degradationof thedome.Thesecommentsapplyto all "A"
coefficientsin theshortwaveequation(2). BeforeJuneof 1988(in thecaseof NOAA-10),and
beforeJulyof 1988(in thecasesof ERBSandNOAA-9); for thecoefficientsandoffsetslistedin
thisdocument,thevalueof s(t)wascalculatedfromasecondorderfit to solarcalibrationdata,both
beforeandafterthedatadays.After thepreviouslymentioneddates,thecoefficientsandoffsets
weredeterminedbylinearinterpolationsof thesolarcalibrationdatatakenby theEarth-viewing
channelson theclosestcalibrationdaysbracketingthedataday. Thereasonfor thesechangesis
illustratedgraphicallyin Figures6,7,and8, whichdescribe,respectively,thesolarmeasurements
takenby theEarth-viewingchannelsfor theERBS,NOAA-9, andNOAA-10 spacecraft.The
initial degradationof theERBSWFOV shortwavechannel(Figure6) wasverycloseto second
order;however,theflattening,rise,andthenmoregradualdegradationof theERBSchannel(at
aboutthe3-yearmark)indicatedother(unpredictable)factorswereinvolved. Moreover,similar
behaviorof theNOAA-10WFOV shortwavechannel(Figure8) reinforcedourneedto abandon
11
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14
the curve-fitting method in favor of the "instantaneous" method of determining degradation
factors.
The offset terms, Bsw, were then computed by assuming zero shortwave energy present in the
nighttime in-flight data. These in-flight offsets have been described elsewhere by Paden et al.
(Reference 20).
3.2 GROUND OFFSETS
Ground calibrations for the ERBE nonscanners were performed by Fellner et al. (References 13,
18, and 19) at the TRW facility in Redondo Beach, California, and an analysis of these calibrations
was performed by the ERBE Science Team (Reference 5). The resultant coefficients are presented
in Table 1.
TABLE 1. ERBE Nonscanner Ground Coefficients
SAT COEF.
ERBS
TOT
S/W
WFOV
AV
-22.7873
AF
-1.3968
AR
26.1161
MFOV -22.7093 -0.9230 25.1276
WFOV -25.5824 -0.6434 26.5454
MFOV -25.5337 1.2227 29.0431
B
1703.700
1273.547
1311.386
AE
N.A.
N.A.
-0.03051
-0.037511014.669
WFOV -22.8621 -0.3977 24.7635 1475.430 N.A.
MFOV -22.5566 -0.5274 23.9133 1211.540 N.A.
WFOV -25.9880 -0.3540 30.1311 1359.474 -0.03465
MFOV -25.4599 0.7092 28.9870 841.703 -0.03604
-22.5230 -0.4216 23.8202 1432.85 N.A.
NOAA9
TOT
S/
W
NOAA10
T WFOVOT MFOV
S WFOV/
W MFOV
-23.2215 -1.9825 22.4009 1668.74 N.A.
-24.3501 -1.3074 28.6683 1417.18 _.03032
-25.0633 -3.3751 29.1677 .1942.58 -0.02270
15
3.3 IN-FLIGHT OFFSETS
The ERBE Merge Subsystem, described by Stassi et al. (Reference 4) was used to produce
Instrument Validation Tape (IVT) for each calibration day in question. This tape was used as the
source for nonscanner in-flight calibration data. Appendices F, G, and H contain figures depicting
the offsets derived on the calibration days for the ERBS, NOAA-9, and NOAA- 10 satellites,
respectively. Monthly tables of nonscanner offsets, as they were used by the Merge Subsystem,
are reproduced in their original memoranda format in Appendices I, J, and K, for the ERBS,
NOAA-9, and NOAA-10 satellites, respectively. At the time of publication of this document,
nonscanner offsets (for the production of archivable products) were available for the following
months only:
ERBS : 1 January 1987 through 31 December 1989
NOAA-9 : 1 January through 31 January 1987
NOAA-10:1 January 1987 through 31 May 1989
3.3.1 TOTAL CHANNELS
Two data sets are used to independently determine total channel offsets (i.e., the BT terms). These
are referred to as "B-soak" and "internal cal." The "B-soak" data set is the set of 60 IVT records
beginning 90 records before the "go to nadir" command preceding the elevation of the instrument
to the internal sources for the internal calibration sequence. The "internal cal" data set is the data
set comprised of records collected during the internal calibration sequence when both the
Shortwave Internal Calibration Source (SWICS) and the calibration heater voltages are zero. Total
channel offsets are independently determined from both of these data sets, using the temperature
and voltage data supplied by the IVT records. If the "B-soak" offset is present, it is the preferred
offset and is the final total channel offset. If the "B-soak" offset is not available, then the "internal
cal" offset is used. In conformance with the characterization of the total channel offsets (Reference
6), we have added the correction factor multiplied by the configuration factor to convert the
internal blackbody (IBB) measurements into the master reference blackbody (MRBB) units. All
nonscanner offsets listed in this document include this correction factor.
16
3.3.2 SHORTWAVE CHANNELS
Four data sets are defined for use in the independent determination of shortwave channel offsets.
The "B-soak" and "internal cal" data sets, as described for the total channels; the "nighttime" data
set; and the "solar car' data set. The "nighttime" data set is the aggregate of all data records
collected when the solar zenith angle is greater than a specified value. The specified value is
normally 123 degrees. The "solar car' data set is the collection of "space-look" records (about 24)
following solar exposure while the instrument is returning to nadir. During the "nighttime" and
"solar car' periods, the incident shortwave flux is assumed to be zero. If there is data for the
"nighttime" offset, this is the preferred offset. If not, then the second choice is the "internal cal"
offset determined by using the IVT data (and using the SWICS temperature to determine the total
channel flux reading, if the SWICS was being observed) adjusted by the appropriate "delta" (e.g.,
the fitted difference between the "nighttime" and the "internal cal" shortwave offsets). Failing
either of these options, we then resort to using interpolated "nighttime" (first choice) or "internal
cal" (second choice) data from the calibration days immediately preceding and succeeding the day
in question. "Solar cal" offsets are not currently used. Deltas for shortwave channel correction
from internal calibration data to its "nighttime" equivalents are determined from least squares
linear fits to historical shortwave calibration data.
3.4 FINAL COUNT CONVERSION COEFFICIENTS
Appendices F, G, and H contain tables of nonscanner offsets for the ERBS, NOAA-9, and
NOAA-10 satellites, respectively, for the years 1987, 1988, and 1989. These offsets were
generated using data acquired on internal calibration days, which is shown in the plots in
Appendices I, J, and K and are presented as they were used by the ERBE Merge Subsystem. For
the most part, nonscanner offsets were produced for every useable calibration day, and the
nonscanner internal calibration frequency was approximately once every two weeks. As
mentioned in the Introduction, NOAA-9 scanner offsets end in January 1987, and NOAA-10
offsets end in May 1989 due to the failure of their scanner instruments.
17
REFERENCES
, J. Paden, Dhirendra K. Pandey, Netra D. Shivakumar, Joseph C. Stassi, Robert Wilson,
William Bolden, Susan Thomas, and M. Alan Gibson, "Radiometer Offsets and Count
Conversion Coefficients for the Earth Radiation Budget Experiment (ERBE) Spacecraft for
the Years 1984, 1985, and 1986," NASA Contractor Report 187589, NASA LaRC, May 1991.
2. S.L. Carman, "ERBE Scanner Instrument Operations Manual," TRW Document No.
D04607A, 1982.
3. L.P. Kopia, "The Earth Radiation Budget Experiment Scanner Instrument", Rev. Geophys.,
Vol. 24, No. 2, 400-406, May 1986.
o J. C. Stassi, L. H. Hoffman, and I. J. Walker, "Earth Radiation Budget Experiment (ERBE)
Data Management System Reference Manual", Volume IV - Merge, FOV Calculations, Count
Conversion, NASA LaRC, ERBE 3-3-9-4-87-8-0, 1987.
5. B.R. Barkstrom, "The Earth Radiation Budget Experiment," Bulletin of American
Meteorological Sociely, 65, 1170-1185, 1984.
o N. Halyo, D. K. Pandey, and D. B. Taylor, "Modelling and Characterization of the Earth
Radiation Budget Experimen-' (ERBE) Nonscanner and Scanner Sensors," NASA Contractor
Report 181818, March 1989.
7. C.K. Hendricks, "Final Calibration Report on ERBE Protoflight Model Scanner Instrument",
TRW Document No. D06905, 1984.
8. C.K. Hendricks, "Final Calibration Report on ERBE Flight Model One Scanner Instrument",
TRW Document No. 1306903, 1984.
9. C.K. Hendricks, "Final Calibration Report on ERBE Flight Model Two Scanner Instrument",
TRW Document No. D06907, 1984.
18
10. RobertB.LeeIII, BruceR. Barkstrom,NesimHalyo,MichaelA. Gibson,andLeeM. Avis,
"Characterizationsof theEarthRadiationBudgetExperiment(ERBE)Scanning
Radiometers,"SPIEProc.,1109,186-194,1989.
11.R. B. LeeIII, M. A. Gibson,S.Thomas,J.R.Mahan,J.L. Meekins,andN. E. Tira, "Earth
Radiation Budget Experiment Scanner Radiometric Calibration Results," SPIE Proc., Vol.
1299, 80-91, 1990.
12. R. N. Green, L. J. Harris, M. J. Johnson, and J. L. Robbins, "Earth Radiation Budget
Experiment (ERBE) Data Management System Reference Manual," Volumes Va and Vb -
Inversion, NASA LaRC, ERBE 3-3-9-5-87-8-0, 1987.
13. L. M. Avis, W. C. Bolden, R. B. Lee III, J. Paden, D. K. Pandey, J. C. Stassi, C. J. Tolson, and
R. S. Wilson, "NOAA-9 Earth Radiation Budget Experiment (ERBE): Scanner Offsets
Determination," 1993.
14. S. L. Carman, "ERBE Nonscanner Instrument Operations Manual," TRW Document No.
D04608A, 1982.
15. M. R. Luther, T. A. Even, R. J. Hesser, W. D. Potter, and A. Castinerias, "Performance
Characteristics of Active Cavity Radiometers in Unshuttered Applications," Applied Optics,
Vol. 25, No. 20, 3705-3709, 1986.
16. M. R. Luther, J. E. Cooper, and G. R. Taylor, "The Earth Radiation Budget Experiment
Nonscanner Instrument," Rev. Geophys. and Space Physics, Vol. 24, No. 2, 391-399, May
1986.
17. R. Fellner, T. Even, and R. Hesser, "Final Calibration Report on ERBE Flight Model One
Nonscanner Instrument", TRW Document No. D06904, 1984.
18. R. Fellner, T. Even, and R. Hesser, "Final Calibration Report on ERBE Flight Model Two
Nonscanner Instrument", TRW Document No. D06906, 1984.
19
19. R. Fellner, T. Evert, and R. Hesser, "Final Calibration Report on ERBE Protoflight Model
Nonscanner Instrument", TRW Document No. D06908, 1984.
20. J. Paden, D. K. Pandey, R. S. Wilson, S. Thomas, M. A. Gibson, and R. B. Lee HI, "Ground
and In-flight Calibrations for the Earth Radiation Budget Experiment (ERBE) Nonscanning
Radiometers," SPIE Proc., 1300, 190-201, 1990.
20
APPENDIXA
ERBSSCANNEROFFSETTABLES
"S.P." in the following tables means scan position. All scanner offsets have the units watts per
square meter per steradian
21
ERBS SC_NER O*"FSETS
I J.4I,,Nt,M_Y 1987 THROUGH 31 0(:CEMBER 1989
S.P. TOTJd. LW SW
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
39
..39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
I 0.12
2 0,09
3 0
4 -0.04
-0.56
-0.36
0.14
0.15
0.24
-0.45
-0.37
-0.45
-0.28
0.33
0.34
0.35
0.38
0.45
0.46
0.52
0.55
0.5
0.48
0.52
-0.04
0,18
0.79
0.82
0.92
0,26
0.33
0.33
0.52
1.12
1.14
1.2
1.14
1.19
1.25
1.25
1.25
1,16
1,2
1.21
0.62
0.79
1.45
1,47
1.51
0.82
0.91
.02
.09
.65
.58
.56
.52
.45
.42
1.4
1.38
1.31
23
0.13 0.41
0,06 -0.7
0.03 -0.58
-0.06 -0.49
-0.45 -1.13
-0,26 -0.88
0.14 -0.63
0.22 -1.04
0,25 -0.77
-0.34 -0.8 t
-0.25 -1.23
-0.31 -0.97
-0.14 -0.68
0.39 -0.91
0.4 -0,76
0.43 -0.54
0.42 -0,95
0.5 -0.68
0.49 -0.45
0.56 -0.77
0.6 -0.61
0,46 -0.53
0.49 -0.97
0,54 -0.78
0.02 -0.72
0.28 -0.97
0.81 -0.58
0.86 -0.37
0.97 -0,68
0.32 -0.73
0.41 -0.52
0.43 -0.84
0.56 -0.53
1.16 -0.19
1.18 -0.59
1.22 -0.32
117 -0.2
125 -0.6
1.3 -0.37
1.25 -0.18
1,31 -0.61
1,23 -0.44
1,18 -0.5
1,28 -0.67
0.7 -0.62
0.82 -0,4
1.48 -0.56
1.51 -0.29
1.56 -0.08
0.84 -0.72
0.93 -0.49
1.17 -0.12
1.17 -0.63
1.73 -0.29
1.65 -0.17
1.62 -0.63
1.6 -0.44
1,49 -0.32
1,51 -0,74
1,51 -0,51
1.43 -0.41
1,41 -1,19
PRECEL"HP,;_ PA3E BLA_'_K i_or FILME(.,-
APPENDIX B
NOAA-9 SCANNER OFFSET TABLES
The term "S.P." in the following tables means scan position. All offsets have the units watts per
square meter per steradian.
25
NOAA'9 SCANNEROFFSETS FOR JANUARY 1987: TOTAL CHAMMELDAY OF NONTH -->
S.P. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.272 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.043 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.934 -9,64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.645 -1.98 .22 -1.01 2.11 2.13 1.83 .93 .34 -2.72 -2.45 -2.60 .70 -4.07 ,70 -.316 -1.84 -.51 -.63 .42 .72 .63 .03 -.24 -1.26 -1.55 -1.20 -.01 -1.82 .22 -1.117 -2.11 -.63 -.96 -.91 -.16 -.73 -.90 -.78 -1.7] -1.70 -1.28 -1.36 -2.00 -1.29 -1.218 -2.84 -.97 -1.84 -2.49 -1.43 -2.22 -2.44 -1.75 -2.76 -2.30 -2.28 -2.81 -3.39 -2.82 -2.079 -1.67 .23 -.48 -1.91 -.69 -1.35 -2.02 -.52 -1.59 -1.19 -1.22 -2.38 -2.60 -1.95 -1.16
10 -1.25 .26 -.29 -1.63 -.63 -.95 -1.97 -.11 -1.22 -1.16 -1.06 -2.79 -2.43 -1.70 -.7711 -1.25 .02 -.81 -1.62 -.90 -1.14 -2.01 -.36 -1.45 -1.55 -1.28 -3.26 -2.61 -1.96 -.7612 -1.18 -.32 -1.14 -1.71 -1.16 -1.30 -1.84 -.67 -1.80 -1.80 -1.69 -3.65 -2.62 -2.18 -.8413 -1.37 -.88 -1.45 -2.00 -1.45 -1.57 -1.91 -1.34 -2.25 -2.05 -2.24 -4.00 -2.70 -2.57 -1.2414 -.67 -.16 -.55 -.98 -.66 -.61 -.84 -.88 -1.44 -1.26 -1.45 -2.98 -1.77 -2.04 -.4515 -.68 -.06 -.34 -.42 -.42 -.32 -.46 -.87 -.85 -1.05 -1.28 -2.48 -1.43 -2.05 -.35
.27 -.17 .05 -.02 -.69 -.23 -.78 -1.06 -1.88 -1.01 -1.90 -.17
.92 -.28 -.21 .38 -.60 .30 -.52 -.79 -1.32 -.55 -1.57 .08
.15 -1.37 -1.53 -.47 -1.57 -.65 -1.36 -1.83 -2.16 -1.28 -2.25 -.88
.58 -.65 -1.15 -.17 -1.14 -.63 -1.18 -1.69 -1.78 -.79 -1.72 -.62
.35 -.50 -1.00 -.60 -1.48 -1.35 -2.09 -2.29 -1.99 -.96 -1.95 -1.09
.49 -.29 -.51 -.72 -1.67 -1.37 -2.55 -2.68 -1.71 -.95 -1.90 -1.30
.59 -.34 -.22 -.85 -1.83 -.85 -2.71 -2.97 -1.31 -.90 -1.64 -1.42
.74 -.17 -.19 -.90 -1.88 -.52 -2.47 -2,96 -.93 -.87 -1.46 -1.43
.95 .08 -.02 -.74 -1.68 -.18 -1.66 -2.39 -.63 -.80 -1.23 -1.31.10 -.77 -1.37 .01 -1.24 -1.94 -.50 -.73 -.97 -1.21.45 -.46 -.94 .28 -.59 -1.26 -.10 -._, -.64 -.88.53 -.66 -.96 .01 -.57 -1.08 -.15 -.40 -.87 -1.04.27 -.97 -1.13 -.51 -.94 -1.]4 -.44 -.58 -1.27 -1.44.89 -.27 -.50 -.04 -.56 -.86 .14 .10 -.66 -.g8.34 -.76 -1.10 -.59 -1.35 -1.68 -.43 -.52 -1.14 -1.56.42 -.61 -.97 -.40 -1.36 -1.76 -.27 -.41 -.94 -1.37
32 .81 -.22 -.52 -.07 -1.07 -1.52 .07 -.09 -.43 -1.0233 .68 -.36 -.59 -.30 -1.21 -1.68 -.11 -.]4 -.46 -1.0934 .65 -.24 -.39 -.45 -1.25 -1.74 -.16 -.46 -.35 -.8535 .26 .09 -.79 -1.17 .47 -.10 .28 -.1736 .59 .13 -.28 .85 .04 .79 .02 .11 -.11 -1.11 -1.25 .38 -.36 .10 -.3137 .80 .23 .06 .86 .08 .83 .28 .32 -.13 -1.08 -.98 .55 -.14 .28 -.0638 .78 .14 .23 .67 .03 .62 .35 .48 -.36 -1.24 -.97 .59 .01 .32 .0739 .90 .18 .43 .69 .25 .80 .46 .71 -.35 -1.16 -.73 .61 .16 .60 .3840 .45 -.44 -.11 .15 -.12 .41 -.15 .15 -.90 -1.46 -1.12 -.13 -.38 .30 .0341 .77 - .27 .23 .39 .25 .72 .01 .43 - .63 -1.06 -.77 .09 .03 .69 .3642 .97 - .11 .36 .47 .48 .87 .07 .67 - .35 -.82 -.56 .33 .29 .91 .4143 .61 -.45 -.03 -.06 .21 .47 -.40 .25 -.62 -1.17 -1.02 .06 -.01 .53 -.0844 .76 ".19 .15 ".04 .41 .56 -.17 .27 ".44 "1.05 -.88 .]4 .11 .68 .1445 .90 .19 .47 .24 .67 .72 .38 .43 ".20 -.88 ".53 .49 .21 .94 .4546 1.00 .44 .79 .31 .89 .QO .72 .65 " .03 - .63 ".35 .53 .24 1.07 .5947 .41 .05 .42 - .]4 .47 .47 .43 .]6 - .37 - .84 ".93 " .01 ".20 .54 .0748 .30 .26 .69 - .21 .67 .66 .64 .67 ".22 - .37 - .82 .05 - .01 .70 .2649 -.05 .20 .72 ".25 .59 .55 .55 .63 ".]4 -.25 -.81 -.17 -.03 .58 .1150 -.42 .17 .69 -.41 .48 .39 .46 .44 -.25 -.22 -.66 -.30 -.12 .30 -.1751 -.65 .42 .91 -.38 .54 .44 .48 .22 -.12 -.09 -.20 -.28 -.14 .08 -.2852 - .53 .66 1.23 -.27 .70 .68 .61 .27 .11 .09 .38 -.18 -.31 .03 -.2953 - .22 .91 1.45 .16 .97 .81 .86 .58 .30 .05 .77 .14 -.31 .08 -.0754 - .23 .69 1.15 .00 .51 .30 .60 .57 .01 -.50 .39 -.07 -.60 -.42 -.1155 .20 1.24 1.33 .44 .68 .35 .67 1.05 .15 -.17 .66 .07 -.45 -.30 .0756 -1.36 .05 -.36 -1.00 -1.04 -1.42 -1.31 -.55 -1.39 -1.96 -.91 -1.72 -2.05 -2.13 -1.8257 -1.78 -.31 -.99 -1.66 -1.77 -2.02 -1.95 -1.12 -1.49 -3.01 -1.82 -2.64 -2.57 -2.74 -2.5258 -2.75 -1.83 -2.52 -2.92 -2.79 -3.29 -3.03 -2.78 -2.62 -4,42 -3.71 -4.27 -3.92 -3.92 -3.7259 -3.]4 -3.29 -3.94 -3.91 -3.62 -3.81 -3.94 -4.38 -3.51 -4.95 -5.09 -5.23 -4.48 -4.73 -4.0060 -12.68 -14.33 -13.60 -15.62 -15.69 -15.04 -14.82 -14.87 -11.15 -13.30 -13.27 -14.00 -9.84 -13.69 -12.5661 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.1962 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63
16 -.55 .18 -.0417 -.25 .58 .3418 -.99 -.10 -.4819 -.50 .31 -.0820 -.74 -.07 -.3421 -.83 -.21 -.2422 -.83 -.20 -.0723 -.72 -.14 .1424 -.55 -.10 .2825 -.51 -.09 .13 1.07 .2426 -.26 .23 .22 1.33 .5227 -.30 .11 -.05 1.22 .3028 -.57 -.28 -.54 .86 -.1529 .20 .20 -.08 1.35 .4530 -.21 -.41 -.75 .65 -.1031 -.05 -.29 -.76 .70 -.08
•33 .17 -.42 .99 .23• 15 -.02 -.60 .74 .01.08 -.12 -.67 .71 -.02.64 .37 -.22 1.14 .41 1.10 .27
27
NOAA-9
S.P. 16 17 18 19 20
11.19-1.63
21
1 -1.27 -1.27 -1.27 -1.27 -1.27 -1.272 1.06 1.04 1.04 1.04 1.04 1.043 1.93 1.93 1.93 1.93 1.93 1.934 "9.64 -9.64 "9.64 "9.64 "9.64 "9.645 "1.67 2.27 "1._ 1.05 ".60 ******6 ".94 .67 .18 -.13 -1.18 ******7 -1.43 ".05 .01 -1.27 "1.47"*****8 "2.49 "1.39 "1.08 "2.57 "1.98 *****"9 -1.39 ".93 ".16 "1.58 -.64 ******
10 ".97 "1.17 ".12 -1.25 ".26 ******11 ".87 -1.60 ".61 "1.19 -.21 ******12 ".89 "1.72 "1.02 -1.03 ".03 ******13 "1.10 "2.06 -1.61 -1.18 ".28 ******14 - .30 "1.22 - .92 -.33 .32 *****t15 -.19 ".98 -.63 ".10 .45 ******16 -.02 -.62 ".25 .24 .73 ******17 .30 ".17 .26 .74 1.11 ******18 ".56 -.85 ".31 ".03 .39 ******19 ".21 ".26 .17 .17 .81 ******20 ".68 ".40 ".09 ".31 .33 ******21 -.41 ".32 ".14 ".42 .25 ******22 ".44 ".35 ".18 -.38 .39 ******23 ".51 ".21 ".14 -.19 .51 ******24 -.43 .00 ".05 .09 .57 ******25 ".38 .08 ".11 .35 .55 ******26 ".12 .40 .09 .85 .76 ******27 -.19 .40 ".03 .76 .59 ******28 -.42 -08 ".37 .38 .29 ******29 .15 .58 .09 .90 .94 ******30 ".52 -.11 ".61 .33 .32 ******31 ".42 -.06 ".49 .42 .33 ******32 ".09 .42 ".06 .82 .72 ******33 ".37 .29 -.08 .64 .70 ******34 -.45 .26 .11 .59 .80 ******35 .08 .78 .81 1.12 1.42 ******36 ".18 .60 .61 .85 1.20 ******37 -.09 .75 .75 1.00 1.29 ******38 ".18 .81 .74 1.03 1.20 ******39 ".07 .98 .79 1.17 1.27 ******40 -.64 .39 .14 .61 .81 ******41 " .53 .55 .37 1.03 .97 ******42 ".40 .64 .67 1.32 .85 ****"*43 ".73 .28 .45 .88 .19 ******44 ".50 .45 .72 .91 .21 ******45 -.06 .83 1.18 .97 ._0 ******46 .31 1.04 1.55 1.01 .41 ******47 ".05 .68 1.23 .42 ".25 ******68 .08 .64 1.52 .54 ".14 ******49 ".04 .59 1.45 .41 -.37 ******50 ".12 .55 1.30 .27 ".69 ******51 ".02 .81 1.68 .41 ".75 ******52 .39 1.13 1.72 .83 -.59 *****t53 .89 1.52 2.01 1.16 ".12 ******54 .94 1.43 1.94 .77 ".22 ******55 1.36 1.81 2.27 1.01 .15 ******56 ".39 .12 .39 ".65 "1.30 ******57 ".92 ".87 ".56 "1.15 -1.44 ******58 "2.13 "2.91 "2.21 "2.23 "2.33 ******59 "3.03 -4.37 "3.34 "3.08 -2.67 **"***60 "10.63 "14.14 "10.64 - 12.16 "10.8361 11.19 11.19 11.19 11.19 11.1962 -1.63 -1.63 -1.63 -1.63 -1.63
SCANNEROFFSETS FOR JANUARY 1987:DAY OF NONTH -->
22 23 24 25
-1.27 -1.27 -1.27 -1.271.04 1.04 1.04 1.041.93 1.93 1.93 1.93
-9.64 -9.64 -9.64 -9.64
'k_'t'lr'/rCt 'A't_,,Ir_r_' _'t_'ttt 'l_'lt'lrttt
11.19 11.19 11.19 11.19-1.63 -1.63 -1.63 -1.63
TOTAL CHANNEL
26 27 28 29 30 31
-1.27 -1.27 -1.27 -1.27 -1.27 -1.271.0_ 1.0_ 1.0_ 1.04 1.0A 1.041.93 1.93 1.93 1.93 1.93 1.93
-9.64 -9.64 -9.64 -9.64 -9.64 -9.64
11.19 11.19 11.19 11.19 11.19 11.19-1.63 -1.63 -1.63 -1.63 -1.63 -1.63
28
S,P.
1 ,292 .593 .634 .275 -1.17
NOAA-9 SCANNEROFFSETS FOR JANUARY 1987: LORGMAVECHANNELDAY OF MONTH-->
2 3 4 5 6 7 8 9 10 11 12 13 14 15
.29 .29 .29 .29 .29 .29 .29 .29 .29 .29 .29 .29 .29 -29
.59 .59 .59 .59 .59 .59 .59 .59 .59 .59 .59 .59 .59 .59
.63 .63 .63 .63 .63 .63 .63 .63 .63 .63 .63 .63 .63 .63•27 .27 .27 .27 .27 .27 .27 .27 .27 .27 .27 .27 .27 .27.11 -.56 1.30 1.31 1.15 .55 .21 -1.56 -1.51 -1.71 .37 -2.40 .42 -.22
6 -1.57 -.75 -.78 -.12 .05 .01 -.41 -.55 -1.15 -1.38 -1.27 -.48 -1.58 -.30 -1.157 -1.97 -1.05 -1.22 -1.21 -.74 -1.07 -1.21 -1.10 -1.64 -1.65 -1.47 -1.53 -1.91 -1.48 -1.418 -2.87 -1.70 -2.22 -2.68 -1.99 -2.47 -2.62 -2.15 -2.72 -2.45 -2.54 -2.89 -3.24 -2.90 -2.399 -1.97 -.79 -1.21 -2.17 -1.39 -1.76 -2.21 -1.23 -1.82 -1.60 -1,74 -2.47 -2.58 -2.21 -1.66
10 -2.30 -1.37 -1.68 -2.59 -1.96 -2.10 -2.78 -1.56 -2.17 -2.18 -2.24 -3.32 -3.05 -2.64 -2.0011 -2.50 -1.74 -2.23 -2.79 -2.33 -2.39 -2.97 -1.89 -2.50 -2.63 -2.59 -3.81 -3.39 -3.00 -2.1812 -2.59 -2.12 -2.60 -2.95 -2.61 -2.61 -2,95 -2.18 -2.85 -2.91 -3.02 -4.18 -3.53 -3.23 -2.3713 -2.71 -2.50 -2.79 -3.13 -2.80 -2.79 -2.96 -2.58 -3.09 -3,02 -3.36 -4.41 -3,56 -3.48 -2.5914 -2.48 -2.27 -2.40 -2.68 -2.49 -2.35 -2.46 -2.49 -2.74 -2.65 -3.01 -3.92 -3,11 -3.33 -2,2815 -2.70 -2,41 -2.45 -2.49 -2.50 -2.31 -2.39 -2.67 -2.52 -2.68 -3.04 -3.75 -3,02 -3.48 -2.3816 -2.77 -2.40 -2.39 -2.15 -2.44 -2.17 -2.23 -2.68 -2.22 -2,6?. -3.01 -3.45 -2.64 -3.48 -2.3917 -2.85 -2.41 -2.39 -1.97 -2.90 -2.73 -2.21 -2.90 -2.16 -2.71 -3.09 -3.34 -2.79 -3.50 -2.4618 -3.57 -3.08 -3.13 -2.70 -3.80 -3.79 -2.99 -3.76 -3.10 -3.49 -3.98 -4.12 -3.47 -4.13 -3.2519 -3.41 -2,99 -3.02 -2.58 -3.51 -3.78 -2.99 -3.65 -3,32 -3.60 -4.08 -4.04 -3.33 -3.97 -3.2320 -3.91 -3.55 -3.54 -3.07 -3.64 -4.00 -3.64 -4.21 -4.14 -4.59 -4.88 -4.55 -3,78 -4.44 -3.8821 -4.14 -3.81 -3.65 -3.15 -3,61 -3.76 -3.92 -4.52 -4,27 -5.06 -5.36 -4.56 -3.94 -4.57 -4.?.322 -4.35 -4.00 -3.76 -3.28 -3.86 -3.77 -4.25 -4.86 -4.07 -5.38 -5.79 -4.51 -4.14 -4.61 -4.5723 -4.44 -4.14 -3.79 -3.34 -3.93 -3.94 -4.47 -5,07 -4.01 -5.36 -5.92 -4.42 -4.29 -4.67 -4.7724 -4.49 -4.27 -3.88 -3.38 -3.95 -4.00 -4.52 -5.11 -3.97 -5.02 -5.69 -4.40 -4.44 -4.72 -4.8825 -4.69 -4.49 -4.21 -3.56 -4.08 -4.16 -4.84 -5.14 -4.13 -5.01 -5.61 -4.56 -4.66 -4.86 -5.0726 -4.64 -4.40 -4.27 -3.52 -4.02 -4.04 -4.74 -4.96 -4.11 -4.71 -5.27 -4.43 -4.58 -4.81 -5.0027 -4.66 -4.44 -4.46 -3.60 -4.19 -4.02 -4.89 -5.00 -4.32 -4.72 -5.18 -4.49 -4.61 -4.98 -5.1228 -4.67 -4.53 -4.63 -3.70 -4.36 -4.06 -4.92 -5.01 -4.53 -4.83 -5.20 -4.54 -4.60 -5,11 -5.2529 -4.22 -4.26 -4,39 -3.44 -4.03 -3.73 -4.50 -4.65 -4.30 -4,66 -4.97 -4.24 -4.24 -4,76 -5.0230 -4.39 -4.58 -4.73 -3.81 -4.31 -4.00 -4.74 -4.96 -4.58 -5.10 -5.43 -4.53 -4,60 -4.99 -5.3131 -4.02 -4.27 -4.50 -3.52 -4.04 -3.70 -4.39 -4.61 -4.22 -4.86 -5.22 -4.17 -4,30 -4.63 -4,9332 -3.53 -3.70 -4.04 -3.07 -3.58 -3.19 -3.89 -4.07 -3.78 -4,43 -4.83 -3.72 -3.89 -4.07 -4.4733 -3.23 -3,42 -3.78 -2.84 -3.32 -2.88 -3.58 -3.71 -3.54 -4.13 -4.51 -3.44 -3,68 -3,70 -4.1234 -2.99 -3.18 -3.56 -2.59 -3.07 -2.63 -3.23 -3,30 -3.36 -3,89 -4.32 -3.19 -3.51 -3.35 -3.6935 -2.26 -2.48 -2.89 -1.92 -2,40 -1,97 -2.53 -2,50 -2.65 -3.22 -3.59 -2.41 -2.93 -2.57 -2.8736 -1.73 -2.07 -2.36 -1.56 -2.10 -1.63 -2,13 -2.05 -2.23 -2.86 -3.06 -1.92 -2.52 -2.12 -2.4037 -1.30 -1.70 -1,84 -1.28 -1.79 -1.32 -1.68 -1.61 -1.96 -2.56 -2.59 -1,55 -2.06 -1.?0 -1.9538 -.95 -1.41 -1.37 -1.06 -1.50 -1,14 -1.28 -1.14 -1.76 -2.35 -2.22 -1.19 -1.56 -1.32 -1.5139 -.46 -.97 -.82 -.64 -.93 -.60 -.80 -.56 -1.34 -1.91 -1.63 -.83 -1.05 -.73 -.8940 -.33 -.94 -.75 -.56 -.73 -.41 -.79 -.50 -1.27 -1.62 -1.42 -.91 -.98 -,51 -.7141 .32 -.40 -.10 .04 -.05 .23 -.29 .11 -.65 -.91 -.73 -.32 -.27 .19 -.0542 .74 -.03 .26 .37 .39 .61 .04 .55 -.17 -.47 -.32 .13 .17 .60 .2643 .82 .07 ,30 .34 .52 .06 .03 .59 -.03 -.38 -.35 .29 .27 .66 .2444 1.06 .39 ,56 .50 .81 .87 .34 .75 .25 -.15 -,11 .66 .50 .89 .5345 1.36 .85 .95 .88 1.18 1.18 .93 1.06 .61 ,17 ,35 .98 ,77 1.26 ,9446 1.62 1.24 1.38 1.13 1.54 1.51 1.40 1.40 ,93 .54 .68 1.24 .99 1.55 1.2347 1.33 1.09 1.23 .81 1.36 1.33 1.34 1.32 .82 ,51 .41 .99 .81 1.30 1.0048 1.45 1.42 1.62 1.10 1.71 1.66 1.67 1.71 1.12 1.02 .67 1.21 1.14 1.61 1.3249 1.17 1.31 1.61 1.02 1.61 1.54 1.56 1.64 1.00 1.06 .63 1.00 1.09 1,48 1.1850 .95 1.31 1.61 .94 1.57 1.47 1.53 1.54 1.08 1.11 .77 .94 1.06 1.32 1.0251 .95 1.62 1.91 1.12 1.77 1.67 1.70 1.55 1.32 1.35 1.25 1.11 1.20 1.31 1.1052 .95 1.69 2.04 1.10 1,78 1.74 1.70 1.50 1.39 1.39 1.56 1.11 ,97 1.18 1.0053 .75 1.45 1.82 .95 1.53 1.42 1.48 1.31 1.16 .99 1.45 .93 .61 .82 .7354 .56 1.13 1.45 .70 1.08 .91 1.18 1.16 .60 .48 1.02 ,64 ,22 .35 .5655 .80 1.45 1.51 .95 1.14 .87 1.20 1.45 .84 .66 1.16 .69 .31 .42 .6556 -.28 .61 .35 -.06 -.05 -.34 -.13 .39 -.21 -.57 .09 -.53 -.72 -.80 -.6157 -.74 .17 -.29 -.70 -.70 -.86 -.72 -.15 -.41 -1.49 -.73 -1.29 -1.19 -1.34 -1.2358 -1.37 -.84 -1.32 -1.52 -1.36 -1.70 -1.42 -1.22 -1.14 -2.45 -1.99 -2.37 -2.06 -2.09 -1.9959 -2.12 -2.17 -2.63 -2.53 -2.28 -2.42 -2.37 -2.62 -2.12 -3.21 -3.28 -3.34 -2.80 -2.98 -2.5460 -7.92 -9.01 -8.64 -9.74 -9.72 -9.34 -9.07 -9.13 -6.91 -8.40 -8.39 -8.72 -6.22 -8.54 -7.8961 .83 .83 .83 .83 .83 .83 .83 .83 .83 .83 .83 .83 .83 .83 .8362 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
29
S.P. 16
1 .292 .593 .634 .275 - .976 -.997 -1.498 -2.599 -1.75
10 -2.0811 -2.2312 -2.4013 -2.5214 -2.2115 -2.3316 -2.3317 -2.3518 -3.1119 -3.0520 -3..5621 -3.7222 -3.9423 -4.1324 -4.2525 -4.5026 -4.4927 -4.5428 -4.5529 -4.2830 -4.6531 -4.3532 -3.9133 -3.7034 -3.4735 -2.7736 -2.3837 -2.0438 -1.7539 - 1.2640 -1.2041 - .6842 - .3143 - .2044 .1245 .6246 1.0747 .9548 1.2449 1.1250 1.1051 1.3252 1.5253 1.4654 1.2955 1.5356 .3457 -.1858 -.9759 - 1.9460 -6.7361 .8362 .00
17
.29
.59
.63
.271.35
.00- .67
-1.98-1.56-2.32-2.81-3.02-3.23-2.&B-2.92-2.81-2.77-3.42-3.22-3.64-3.76-3.99-4.08-4.11-4.29-4.16-4.17-4.21-3.92-4.26-3.99-3.47-3.20-2.96-2.28-1.84-1.45-1.05
- .53-.49
.05.39.47.74
1.191.541.271.581.511.511.841.971.831.631.84
.68".14
-1.47-2.79-8.85
.83
.00
18
.29
.59
.63
.27- .91-.37- .67
-1.80-1.09-1.67-2.21-2.62-3.00-2.77-2.77-2.64-2.58-3.17-3.03-3.55-3.76-4.00-4.14-4.25-4,53-4.53-4.63-4.69-4._-4.?9-4.46-3.90-3.52-3,14-2.34-1.91-1.53-1.17
-.70
".69
".09
.40
.59
.941.451.911.802.192.112.042.312.392.191.952.14
.87
.08
-2.10-6.71
.83
.00
3O
NOAA-9 SCANNEROFFSETS FOR JANUARY 1987: SHORTWAVECHANNELDAY OF MONTH -->
S.P. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.112 .32 .32 .32 .32 .32 .32 .32 .32 .32 .32 .32 .32 .32 .32 .323 .49 .49 .49 .49 .49 .49 .49 .49 .49 .49 .49 .49 .49 .49 .494 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.095 .63 .63 .60 .69 .72 .71 .76 .70 .78 .53 .37 .64 .55 .65 .636 .74 .74 .71 .80 .83 .82 .86 .79 .90 .70 .48 .75 .66 .75 .747 .40 .39 .37 .45 .47 .46 .50 .45 .56 .39 .14 .38 .33 .40 .408 .76 .74 .72 .79 .82 .80 .85 .80 .92 .76 .52 .73 .69 .75 .'?'59 .81 .80 .79 .86 .88 .86 .91 .86 .97 .82 .58 .78 .74 .81 .80
10 .43 .40 .43 .48 .49 .49 .52 .47 .57 .43 .18 .36 .]4 .41 .4111 .74 .71 .72 .77 .78 .77 .83 .78 .88 .74 .52 .69 .67 .73 .T212 .72 .67 .70 .72 .74 .73 .80 .75 .88 .72 .50 .66 .68 .71 .7013 -.11 -.16 -.12 -.11 -.10 -.10 -.03 -.09 .03 -.10 -.36 -.20 -.16 -.11 -.1214 .14 .11 .14 .18 .19 .19 .24 .17 .26 .14 -.12 .06 .05 .15 .1415 .17 .13 .14 .20 .20 .20 .26 .19 .28 ,14 -.12 .08 .07 .18 .1716 -.24 -.27 -.27 -.22 -.21 -.21 -.15 -.22 -.12 -.26 -.54 -.32 -.32 -.23 -.2417 .09 .06 .06 .11 .18 .17 .19 .12 .21 .06 -.21 .01 .01 .11 .0918 .11 .09 .08 .14 .15 .12 .21 .14 .24 .07 -.20 .03 .03 .12 .1119 -.28 -.29 -.32 -.24 -.22 -.27 -.18 -.25 -.13 -.29 -.60 -.36 -.36 -.26 -.2920 .09 .09 .07 .13 .16 .15 .18 .11 .23 .07 -.22 .00 .01 .10 .0721 .09 .10 .10 .13 .15 .14 .18 .11 .20 .02 -.23 .01 .02 .09 .0822 - .]4 - .32 -.35 - .30 - .30 - .30 - .23 - .32 - .23 - .42 -.68 - .40 - .41 - .33 - .3523 .02 .03 .01 .05 .06 .06 .12 .03 .12 -.12 -.35 -.04 - .05 .03 .0124 .05 .07 .05 .09 .09 .09 .14 .06 .15 -.01 -.31 .01 -.01 .06 .0425 - .34 - .31 -.]4 - .31 - .30 - .29 -.22 -.32 - .23 - .36 -.65 - .37 - .39 -.32 -.3526 .03 .06 .02 .05 .06 .07 .14 .04 .14 .02 -.28 -.01 -.03 .05 .0127 .06 .10 .06 .08 .09 .09 .16 .07 .16 .06 -.23 .02 .00 .07 .0428 - .33 - .28 - .33 - .31 - .31 - .31 - .24 - .32 - .23 - .32 - .61 - .36 - .39 - .32 - .3529 .06 .11 .06 .08 .08 .08 .16 .07 .16 .06 -.23 .01 .00 .07 .0330 .11 .16 .12 .13 .12 .12 .20 .11 .19 .09 -.20 .04 .03 .11 .0731 -.27 -.20 -.27 -.25 -.26 -.27 -.17 -.26 -.18 -.29 -.56 -.32 -.33 -.25 -.3032 .09 .15 .09 .08 .07 .06 .16 .06 .17 .05 -.24 -.01 .02 .10 .0633 .00 .07 .03 -.01 -.04 -.04 .06 -.04 .05 -.05 -.37 -.14 -.08 .02 -.02]4 - .38 - .32 - .33 - .38 - .40 - .40 - .31 - .42 - .36 - .43 - .78 - .54 - .50 - .36 - .4035 -.04 .04 .00 -.05 -.07 -.08 .02 -.08 -.01 -.09 -.38 -.17 -.12 -.01 -.0536 .03 .10 .05 .01 -.01 -.01 .08 -.01 .05 -.05 -.31 -.11 -.07 .05 .0137 - .30 - .23 - .29 - .32 - .34 - .35 - .26 - .]4 - .28 - .39 - .65 - .43 - .41 - .29 - .3338 .09 .17 .10 .08 .06 .04 .13 .04 .10 .00 -.27 -.05 -.05 .09 .0639 .13 .22 .14 .12 .11 .10 .17 .09 .15 .07 -.25 .03 .00 .13 .1040 -.18 -.10 -.17 -.20 -.21 -.23 -.14 -.23 -.17 -.26 -.59 -.29 -.33 -.19 -.2241 .23 .30 .26 .21 .20 .19 .29 .19 .23 .13 -.23 .10 .05 .21 .1942 .23 .34 .24 .21 .20 .18 .28 .19 .25 .13 -.18 .15 .09 .22 .2043 -.14 -.02 -.12 -.17 -.17 -.18 -.09 -.18 -.12 -.23 -.52 -.23 -.29 -.16 -.1844 .21 .]4 .24 .18 .19 .17 .26 .17 .24 .12 -.16 .10 .05 .19 .1745 .22 .]4 .26 .20 .21 .19 .28 .18 .25 .13 -.16 .10 .06 .20 .1846 -.16 -.06 -.12 -.18 -.17 -.19 -.12 -.20 -.13 -.24 -.53 -.29 -.33 -.19 -.2047 .19 .28 .22 .17 .19 .17 .23 .15 .22 .11 -.18 .04 .00 .16 .1548 .22 .31 .25 .21 .23 .21 .27 .19 .27 .14 -.14 .07 .03 .19 .1849 -.13 -.04 .11 -.14 -.11 -.14 -.08 -.16 -.07 -.19 -.49 -.26 -.33 -.16 -.1750 .26 .]4 .29 .26 .29 .27 .32 .24 .32 .20 -.14 .11 .04 .23 .2251 .23 .]4 .25 .23 .27 .25 .28 .21 .30 .19 -.13 .10 .03 .22 .2052 -.12 -.01 -.11 -.12 -.08 -.10 -.08 -.14 -.05 -.17 -.48 -.27 -.33 -.12 -.1653 .80 .90 .81 .86 .90 .87 .91 .84 .83 .72 .40 .65 .51 .81 .7954 1.16 1.25 1.18 1.17 1.20 1.20 1.25 1.19 1.26 1.12 .81 1.02 .99 1.16 1.1455 .82 .89 .84 .83 .87 .87 .88 .84 .91 .77 .47 .67 .63 .79 .8056 1.16 1.22 1.18 1.17 1.21 1.21 1.21 1.17 1.26 1.12 .81 1.01 .95 1.12 1.1357 1.17 1.23 1.20 1.19 1.23 1.22 1.22 1.19 1.28 1.16 .86 1.02 .96 1.13 1.1558 .79 .85 .82 .81 .84 .84 .84 .80 .90 .81 .53 .65 .58 .76 .7859 1.11 1.15 1.13 1.12 1.17 1.16 1.16 1.13 1.22 1.17 .87 .97 .90 1.08 1.1160 1.10 1.14 1.11 1.10 1.14 1.14 1.15 1.11 1.21 1.16 .86 .96 .90 1.08 1.1161 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.0562 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
31
S.P. 16 17 18
1 -.11 -.11 -.112 .32 .32 .523 .49 .49 .494-4.09 -4.09 -4.095 .57 .72 .416 .68 .83 .547 .34 .49 .208 .69 .B4 .559 .75 .90 .60
10 .34 .50 .2011 .67 ,81 .5212 .66 .77 .5113 -.17 -.05 -.3314 .07 .23 -.0915 .09 .25 -.0816 -,31 -.17 -.4817 .02 .17 -.1618 .03 .19 -.1319 -.36 -.20 -.5220 .01 .17 -.1521 .01 .17 -.1422 -.42 -.25 -.5723 -.07 .10 -.2224 -.04 .14 -.1925 -.42 -.25 -.5726 -.06 .11 -.2127 -.04 .14 -.1828 -.42 -.25 -.5729 -.04 .14 -.1830 -.01 .18 -.1631 -.]7 -.19 -.5132 -.01 .17 -.1633 -.09 .09 -.2634 -.49 -.28 -.6735 -.12 .06 -.2936 -.06 .13 -.2237 -.40 -.21 -.5538 -.01 .18 -.1739 .04 .22 -.1240 -.29 -.09 -,4641 .09 .32 -,0942 .12 .32 -,0343 -.25 -.06 -.3944 .10 .29 -.OZ,45 ,11 .30 -.0346 -.27 -.08 -.4147 .08 .27 -.0748 .11 .31 -.0349 -.24 -.04 -.3950 .14 .36 -.0451 .13 .33 -.0252 -.23 -.02 -.3853 .66 .92 .4954 1.05 1.26 .8855 .69 ,90 .5556 1.03 1.23 .8857 1.05 1.25 .9158 .68 .87 .5459 1.00 1.19 .8660 1.01 1.20 .8761 3.05 3.05 3.0562 .00 ,00 .00
NOAA-9 SCANNEROFFSETS FOR JANUARYDAY OF NONTH "->
19 20 21 22 23 24
SHORTWAVECHANNEL
26 27 28 29 30 31
32
APPENDIX C
NOAA-10 SCANNER OFFSET TABLES
The term "S.P." in the following table means scan position. All offsets have unit watts per square
meter per steradian.
33
NOAA-10 SCN_4E'R OFFSETS
(_.I_,NN[J_AZldUTH L_(_.[ : 38 E_tL"['S)
5.P. TOTAL LW SW
1 0.66 0.29 0.43
2 0.62 0.58 0.13
3 0.77 0.7 -0.05
4 1 0.82 0.99
5 -1.16 -2,88 0.08
6 -0.23 -1.22 0.16
7 0.4 -0.21 1.0 I
8 1.04 0.24 0.41
9 1.64 0.47 0.43
10 1.55 0.45 1.26
11 1,6 0.41 0.52
12 1.57 0.16 0.54
13 1.42 0.06 1.36
14 0.96 -0.47 0.62
15 1.11 -0.73 0.51
16 0.85 -I 1,19
17 0.74 -1.28 0,41
18 1.08 -1,37 0,35
19 0.31 -2 1.07
20 0.07 -2.37 0.3
21 0.08 -2,67 0.09
22 -0.47 -3.19 0.68
23 -0.51 -3.44 -0.06
24 -0.38 -3.69 -0.08
25 -0.56 -3.93 0.81
26 -0.54 -4.09 0.01
27 -0.29 -4.18 -0.02
28 -0.34 -4.2 0.87
29 -0.29 -4.29 0.1
30 -0.2 -4,47 0.08
31 -0.44 -4,88 0.84
32 -0.48 -4.69 0.11
33 -0.2 -4.67 0.08
34 _0.13 -4.48 0.84
35 -0,12 -4.42 0.07
36 0.16 -4.29 0.07
37 -0,07 -4.28 0.89
38 -0.11 -4.23 0.14
39 0.38 -3.95 0.12
40 0.08 -3.94 0.9 I
41 -0.01 -3.9 0
42 0.15 -3,86 -0.15
43 0.05 -3.72 0.66
44 -0.18 -3.73 -0.07
45 0.09 -3.51 0.04
46 0.41 -3.11 0.8
47 0.29 -3.23 0.04
48 0.65 -3.05 0.11
49 0.6 -2.98 0.87
S0 0.38 -3,12 0.11
51 0.32 -3,22 0.06
52 0.36 -3.1 0.84
53 0.11 -3.19 0.09
54 0.35 -3.17 -0.03
55 0.26 -3.06 0.72
56 0.38 -2.91 -0.04
57 0.86 -2.8 0.03
58 0.25 -2.69 0.79
59 0.73 -1.46 0.43
60 1.19 0.04 0.96
61 1.26 1.31 0.96
•6"E "£':'5"5 _.-'15
35
PRECEDING PAGE BL_itK i_iU| FILMF.._
_OAA-10 SCA.q, tll OF'PJ_TS
(SCANN£R AZMJ_I J,_l.£ = ZERO 0£GIEES)
S.P. TOT/_L LW SW
1
2
3
4
5
G
7
8
9
I0
11
12
13
14
15
16
17
18
19
20
21
22
23,
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
.53
54
55
56
57
58
59
6O
61
62
0,26
0.62
0.77
1
-0.99
-0.3
-0.47
-0.82
1.62
2.07
1.6
0.97
0.82
1.16
0.72
0.46
0.44
0.92
0,84
1.12
1.08
0.86
0.88
0.97
1.09
1.15
0.98
.12
.18
.36
.24
35
.37
.22
.25
1.61
1.7
1.49
1.77
1,46
1.09
133
1.87
1.9
2.18
2.22
2.39
2,52
2.17
1.63
1.5
1.75
1.68
1.79
1.21
1.15
134
0.62
0.25
-5.46
1.26
4.55
0.05 0.23
0.58 0.15
0.7 -0.05
0.82 0.99
-0.99 -0.41
-0,67 -0.37
-0.45 0.45
-0,58 -0.24
O.93 -0.27
1.36 0.49
1.07 -0.31
03 -0.34
0.48 0.5
0.65 -0.32
0.22 -0,39
0,12 0.37
0.08 -0,39
0.26 -0.42
0.27 0.32
0,47 -0.44
0.35 -0.64
0,27 -0.01
0.31 -0.77
0.3 -0.76
0,51 0.19
0.63 -0.54
0.49 -0.5
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36
APPENDIX D
NOAA-9 SCANNER OFFSET PLOTS
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Form Approved
Report Documentation Page o, No.oTo,-o,
col_n of i_iofl, lrlcllxliltfl s_s for NKlOOng this Ogro(_, 10 w_gnln_ _qUanm O_,.M_, _,=. '_ :,,, ."'_' _.__.'_"-"r'/__." .--.'." 'T,-"T ' "T-._'_._h_
Davis Highway, Sutle 1204, Adin_ocl;VA 2220_4302, att¢] to th Office of Management and Budget, Pape_wodt Reduc_on e'roject o/'o4-Oll=Va), wumng_on, t.x., .....
1. AGENCY USE ONLY (Leave b_ank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED
July 1993 Contractor Report
4. TITLE AND SUBTITLE 5. FUNDING NUMBERS
Radiometer Offsets and Count Conversion Coefficients for the Earth Radiation
Budget Experiment (ERBE) Spacecraft for the Years 1987, 1988, and 1989
s. AUTHOR(S)Jack Paden, bhirendra K. Pandey, Joseph C. Stassi,
Robert Wilson, William Bolden, Susan Thomas, and
M. Alan Gibson7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS
Science Applications International Corporation (SAIC)
One Enterprise Parkway, Suite 250
Hampton, Virginia 23666-5845
9. SPONSORIN_ITORING AGENCY NAME(S) AND ADDRESS(ES)
National Aeronautics and Space Administration
Langley Research Center
Hampton, VA 23681-0001
11. SUPPLEMENTARY NOTES
Langley Technical Monitor: Robert B. Lee IIIFinal Report
12a. DISTRIBUTION/AVAILABILITY STATEMENT
Unclassified - Unlimited
NAS 1 - 19570
665-45-20-01
8. PERFORMING ORGANIZATIONRE PORT NUMBE R
SAIC(EARTH) - 92/01
10. SPONSORING/MONITORINGREPORT NUMBER
NASA CR-191489
12B DISTRIBUTION CODE
Subject Category 47
13. ABSTRACT (Maximum 200 Words)
This document contains a compendium of the ground and in-flight scanner and nonscanner offsets and count conversion
(gain) coefficients used for the Earth Radiation Budget Experiment (ERBE) production processing of data from the ERBSsatellite for the period from 1 January 1987 to 31 December 1989; for the NOAA-9 satellite, for the month of January 1987;
and for the NOAA-10 satellite, for the period from 1 January 1987 to 31 May 1989.
14. SUBJECT TERMS
Earth Radiation Budget Experiment, Radiometric Sensors, Calibrations,Count Conversion Coefficients, Offsets
17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATIONOF REPORT OF THIS PAGE.
Unclassified Unclassified
NSN 7540-01-280-5500
19. SECURITY CLASSIFICATIONOF ABSTRACT
J15. NUMBER OF PAGES
213
16. PRICE CODE
A10
20. LIMITATION OF ABSTRACT
Standard Form 298 (Rev. 2089)Prescribed by ANSI Std. Z39-18298-10"2