SRUTTLE TRANSPORT SYSTEM (STS)

,.

CL: l3YC-l- HVH 11 Dec 98

Approved for Release: ?917/02/08 C05094762

~GON 2.0'0:53

SRUTTLE TRANSPORT SYSTEM (STS)

PANORAlHC C.M1ERA SYSTE14 (PCS)

PERFORr-1ANCE ANALYSIS STUDY

t1ID~STUDY BRIEFING

DECEMBER 1978

- SECRET HEXAGON 201053 -

Approved for Release: 2017/02/08 C05094762

BYE-120478/78 HANDLE VIA BYEt1l\N AD- -11 DEC 78

DYE-1 RVW 18 Jan 99


. ~EXAGON 2005.3

STUDY OBJECTIVES

BASIC ASSUMPTIONS - SENSOR~; STS, REQUIREMENTS

KEY PERFORMANCE RELATED ISSUES - ORBIT, SCHEDULE, 'STRATEGY

PROMISING OPERATING CONCEPTS

PRELIMINARY CONCLUSIONS

ISSUES WHICH SHOULD BE STUDIES FURTHER

PLAN FOR REMAINDER OF THIS STUDY

- SeCRET HEXAGON 20053


DYE 120478/78 . HANDLE VIA BYEMl\N AD - 18 Jan 79


~EXAG0 •. 20053

STS PCS SENSOR SUBSYSTEM ASSUMPTIONS

o STS PALLET MOUNTED HEXAGON 1217 TYPE SENSOR SUBSYSTEM 0" ~.

. . o 142~OOO FEET OF·FILM PER SIDE

o SOLID-STATE STELLAR (53) SENSOR (REMOUNTED) IN COMDINATION NT!'I) Pl\NOMMIC CAHEM PROVIDES HETRIC COVERAGE CAPABILITY SIM:ILJ\R TO TUAT OF 1217 CLASS tmTRIC PAN CAt1ERA

o COMHAND/TELEMETRY THROUGH SCF

~1!!Cfmp W£XAGON 20053

CL: BYE-l RVW 10 Jan 99


DYE 120470/78 1IJ\:WLF. VIA DYEI·ll·\N AD -, 24 J'an 79 .

, I


STS CAPABILITIES ASSUMPTIONS

(SAME HAY REQUIRE THRUST AUGMENTATION AND/OR OTHER ORBITER OPTIONS)

CL: I\YE-1 HV\v 18 Jan 99

0 7- '1'0 30-DAY MISSIONS'"

0 PERIGEE SHOULD REMAIN ABOVE 95 NM

0 UP TO 57° INCLINATIONS FROM BTR

0 UP TO 97° INCLINATIONS FROM WTR

0 DRl\G MAIN'rENANCE

o MAINTENANCE OF LATITUDE OF PERIGEE IS OPTIONAL


BYE 12'0470/70 . HJ\NDLE VIA 13YE:·ll\N 1\0 - 18 Jan 79

• I

t .


~EX1\(lv.~ 2{}053

HEXAGON/STS PCS SCHEDULE ASSUMPTIONS

o THERE WILL BE SPRING TO FALL ONE-HEXAGON MISSION

PER YEAR THROUGH 1984 (MISSION 1220)

o STS pes WILL ASSUME THE HEXAGON COLLECTION MISSIONS

IN LhTE 1984 OR EhRLY 1985

o EhRLIER STS PCS TEST MISSIONS WILL BE FLOWN IN TilE

GAP BETWEEN HEXAGON MISSIONS

~XAGON 2'0,053

Cl.: P,Y!~ 1 HV\'1 18 ..l<.ln 99


BYE 120478/78 HANDLE VIA BYEMAN AD - 18 Jan 79

I J

I

I

"


~EXAGON 20'053

STS pes COLLECTION REQUIREM'ENTS

o STl\NDING SEl\RCH - PRtMARY MISSION

o SPECIAL SEARCH - APPROXIMl\TELY 25 PERCENT OF FILM LOl\D*

o MC&G METRIC l\REl\ AND TARGETS - BONUS FROM STl\NDING SEARCH COLLECTION**

o HC&G NON-i'IETRIC l\REA - DONUS FROM STANDING SEARCH COLLECTION

o GU'!I~Rl\fJ SUHVEILLl\NCE - BONUS FROM STl\NDING SEARCH COLLECTION

IflFOH:li\L GUJDf1NCE FROB CIIl\IRl'v1l\N I ICRS

* * T',~;SU:,iI':~'; nr:nnc Cl\Pl\BT LITY l\ND STEREO, SEJ\RCH COVERl\GE J\Gl\ TNST NF:\,/' S'l'M'lDT NG ~; i':i\ nell HEQU I HE~'iEN'L'S

:r.: B",T-l RV\\' 11 Dec 90

BYE-12047B/7<l I\ANDLE Vfi\ I\';'i::·:i\:-J, 1\0 - 11 ,[,)EC 78'

---- --_ __ ... _ ...... _""".... "r\ n ~ "'l



~Xl\GON~2005.3

PfWJEC'l'gO S'fl\NDING AREA SEAReH COLLECTION REQUIREMENTS FOR 1985'""90

COl',. r.I·;C'l'lON I .> J.; I..!. T ()[)

CUI ~l!I;['l'r

~ j. -: ( )

•• r ;r) C> r:u ~ : ;0

1. ~ --- j ~O

1 ~3 ;·:0 2 .~ . - no

."f·· -..... , . , , --

C:-J : :C) 1 ~, y c , ; :,') :? -.- ; :0 •

COLLECTION PEHCEN'l'*

0·0 no 80 80 80 00 0-0

80 80 80

MODE

STEHEO s'rEHEO S'l'EREO STEREO

MONO HONO HONO

C40NO MONO MONO

AREA (MSNM)

.18 1.07

.75 1.69 3.62 3.41

.44

11.16

8.71 9.73 4.S)

-'--22.97 ---34.13

MIN.REOD COVEHAGE MSNM/YR

1.0G 3.20 1.51 2.25 3.62 2.27

.23

14.14

11. 61 6.49 2.27 -_.-

20.33 ---------34.52

.... ( '" - i . ..... I" • I. I, P()J :<'1' 0:: nr:QurrmD AGE OISTRIDUTION

:~,: )'. ... j; - 1 1< V~'J 11 Dec 9 G ~mXl\GON 20053


HEQID NIIRS

4 3 3 3 3 3 3

3 3 )

DESiO NIIRS.

5 4 4 4 4 4 4

4 4 4

DJ-:S'D N ,I I HS

pr~ !~CI ::rr

. ~.o no 80 00 80 80 80

80 . I' eO t

80

. B¥E-120·17'3/78 Ilt\NDLE V~i\ /1'1'1::·1,\:: AD - 11 DEC 7:~


PHELHlINl\RY 1985-90 .S'rN~,J)I! SEli.HCII REQU I H.F;:'·iEt,:'l'S

NUMBER OF MSNM

.. -- -.---.----

Collection Period

!.~~~U5)!l 2 Mo 4 Mo 6 Mo 9 1'-10 12 "10 18 No 24 l-!o TOt .. ll

'cnt ~

1 U~)~H (U l"{) .13 .46 .34 .96 2.25 2.41, .31 6.86 2 PHC (ell ) .03 .32 ~ . .24 .48 .96 .66 .13 2.22 3 H(jI1~101 ia (HG) 0 . 004 .005 .02 .20 .23 .0 • ·1 G 4 1.:.:1 st Curope ( EE) 0 .18 .10 .09 .04 0 0 .. ·1'1 5 NOELh [<orea (I~N) .01 .03 .01 .01 .004 0 0 .OG 6 S. East I\sia .(S£) 0 .02 .02 .06 .OB .06 '0 .24. 7 CUbd (CU) 0 .01 .0Ji .01 .01 .02 0 .06 B Hiddlc Cast (r-m) .01 .05 .02 .06 .08 .03 0- .2 S

(Preliminary Version) C.! b

<) \'.'es t r::urope (\~E) 0 0 0 0 0 .65 .51' l.1 G ' I

to ::0:' L1l i\J:ric.-:l ( Nl\) 0 0 0 1.56 0 0 0 LSD l 1 r:.:! ;; t, .j\[rica (E7\) 0 0 0 1.47 0 0 , 0 1 .. j 7 l2 \.:.~:;t. 11.£ rica ( h'l\) 0 0 0 0 0 3.81 0 3.81 13 Soul:h j'\[ricl1 (Sl\) 0 0 0 1.64 0 .18 0 l. 02 t .! I.' -' ~l J: LIst (: Il~ ) 0 0 0 .B9 0 .72 0 l. G 1 t :i Lll- Lls~ (FE) 0 0 0 1.03 0 .75 .14 /1.92 I G

I 0 0 0 .21 0 0 0 .21

17 ~:Oll ~:h P.ICl t lC {SP} 0 0 0 0 0 0 1. OS 1. 05 I ;3

I I'

0 0 0 0 0 0 2.30 2.30 I) 0 0 0 .51 0 .26 .02 . 79 :~ 0 ., South I\mcrica (NS )' 0 0 0 .48 0 3.19 .51 " • 1.8 ," . 21 c

oJ • South America (SS) -0 0 0 .92 0 .17 0 l. 09

'11 C,,:rn:nt (b)( 1 )

.18 1.07 .75 1.69 3.62 3.41 .4<1 11 .16 (b)(3) , , I ~ : \ ',': 10 USC ~ 424 0 0 0 8.71 0 9.73 4.53 22.97

.. ~ f!' ( I : _ ~-~ 1 .1B 1. 07 .75 10.40 3.62 13.14 4.97 3·\ • ) J


Approved for Rele~se: 2017/02/08 C05094762

~XM-;(' .. 20053

DETERIHNATION OF KEY BASELINE NISSION PAHAMETEHS

------------------------------------------------~------------------------------------------------------------------

!~!iu~!~E ·c~~ADI'~IT.y.]-: ~80j--~.

//- --. ------ . ___ . INCI~ 1 Nl\'rION') __ . , .. BOUNDING .../ , .'

. .- ·lNIIR;G~~._~~;--·---\B -----·1 .IsS:

. ----~. l\POGES -' ,95: : >{ --I'~~~ i ~---- ICLoSUi{E._.~~~1'f~'~Vl\L ~lO- Ol\yStI 1--- ('l't\'il~lj) .

- .. - 57: 95XI05 70: 95>:10U 75: 95;-;120

95Xlor; 9 r,X 10'3. 95:< 120·· . ---

'95X ~.17; I

i 90: 95X1l7 or 95X162

l_./~ I:Wl'! rNI\'rt~ -.--- -----l.~~:~~_»-·3-;--~.i·~Tl\n~ETI

• ... i : .. (,";:': j i '. 'I' 21 [)i\ '( [)lJ Hfi'l' ION: 'rEr;Tl\'rI VB BYE ): 2 () 11 7 B - 7 H . II i\,tm I.E V 1 i\ WIT: 1;-·.:;

M) - 8 ,.1d/\ 7')

, •• j .. ','::- I: 1·:'.:\"1 B ,Jan 99 ~IEXAGON 20053


I· I , ,

I

Y

Approved for Rel~ase: 2017/02/08 C05094762

i OF SEGRI~;r lJEXI\GUi'j: 20053

CURRENT AND NEW REQUIREMENTS DENSITY VERSUS LATITUDE

ONE PERCENT = 345 KSNM/YR

1n ,- ---.------- .... ----.-.-;-. -.-~i-·;_-~-· " , . , I " ,

. I I I : :

I ' __ ",-"-... & _ ......... _I __ ...J ... ....-..... _ .... I ....... t ........ _., - __ 1 __________ -;

: .. I: : Ii I!' 'I'! I : I', II 'I : ,. '. I, I ' : .: I l .. f : ' ' I I I

I ' I i'l I ,I I, ;

~:cr:;T

El:f{' 0 ··ii'lf{ . H J ::S)

1G

III

12

10 !

I B'I

()

, I ,

I 'J( )

-n','j;-} HV\-] 18 ,Jiln 99

, 'J" ,

!. 1

,; .. ' 'i ': :,' I ';'1" .. : I I"'; : .. ' .!

I. . . : .!. .I\.,! . L:':!" '::!I I ! ! I I .'. II ',.. ., ;1 i . I' ': 1 t !;

., i':'" I , ...... : .. :., I . '1 . -

CUt1t1LAT IVE '

i 1\. l !. :: !: '. ; :.: I I ! i • \ . "'1 : . j I! I.; . i .. i' ... : . : . , . ' ....

I I

I

I I

.. /

, I

+60

I I ,

.' .

I 1,,1

1 ., '. , i

I ! , ,

. .. ~" . .......

, :, j I · I ..• :': il,·!>!i '

OJ ! . 'I

I, I I .. " ,'" I·'

I . !:'i :' !" . . i

I

r··"" '. '. / " ...

"'-. . ' ......... "

"

j I I

.f .... , ....

~.-. ......... .--..... ..

f ' .... '_ •. , .. ____ • __ . __ .....: ._ ••• _.;._. ____ • __ ; ______ • __ .~.:..:. :.:.:....: _co, _, .. ~ ./

+ 3,0 a -30 -on L/\ T ITUDE (DEGREES)

Tep §g'UfT~JEX/\GON 20053

OYE-120i\7fJ/7r1 II/\NDLE V 1/\ nYU1f,:'

Approved for Release: 2017/02108 C05094762

, I

, , .

_ Approved for Release: 2017/02/08 C05094762 T~ )~! 200S3

NRO rlWGRMI A IIEXAGON SLANT RMfGE NIIRS HODEL

--------- --------------------------------------------------------- ---

I'i:(::'-,\;: II J 1 Y () I {d 111 : V I r: (j [;:IlIU,i: n :: II I::) (m

1-:: r ru,

1.0

.11

.6

.2

o 90 100 11 a 120 130 140

SLANT RI\NGE (NM)

Tt>P St'eREr HEXAGON i0053 -


-----------

-AiJ- ---iif;[Hiull Y----------r-::.t 15" 30') _,;1,') ('In --_ .. _- _ .. _---_.--- --- -- .

B5 (I') ,(; 9fi 1 ?O \.10 95 93 110 1 " , J', ].';.)

105 ,: 101) 121 :1·: :1 210 1'115 I 119 133 h>1 23)

i 125 , 129 144 177 2:):) 135 ; 11\0 1 !)G -1'.11 2/0 145 , 150 167" 205 2;0

------- --

BYE -1 2 0 I} 7-3/7 8 I/,\;-JDLE Vl!\ !~YI-::':'I\:~

lID - 5 Jfli'J 79'

sr 1 rlCl 1 t:/\ T I Of-!

30 1-------------- ----------. I II I l I ,.

2() I I I \

10 .- 0

I o '. ----.--- --'-- . -- ------05 105 115 125 95

;~ll~-l !<V\'l 1(3 Jan 99


i 0(3 SECR[T .:.L~EX/\GON 20053

ACCESS CLOSURE TIME VERSUS APOGEE ALTITUDE (95 NM PERIGEE, .:!:.45 DEGREE SHATH)

70° INCLHiATION

! : · I ,-I I

• 1 •• __ ~.. I • •. • •••••

1 ; i · i ": i':

. -·1- . : .. ; -'" . i :

I

130 0

INCL INATION I Ir-1Tj

'

I, ; I .!; . i i

/' I :

j ,

I j I

. i. I I I I ! , . \ It i . : ',: Ii \ l'

.. - .. .\. .-,.-\- .-

9-8° INCLINATIOn

-T-r-------------- ;1 , . I , : 'I

· i I

I • \ ;

· .'/ \ ' · \ · . I

• I I I i

:' I

/ i

/ , i

I

_6 r' ---------------

105 115 125 135 95 105 115 125 135 95 105 115 125 12::' APOGEE ALTITUDE (NM)

lior SECRET IL£.XAGON 20053 .


I3Y[- ~1201173/7B I!/\:H)LE V 1/\ rnn:;,,:/,

I)·.' ... • ... S 'j'( ),

I.: !,():~E :",.'i'

1.1.'lINt·( I!~

30

20

10

o


3ECRFrp HEXI\GON 20053 -

ACCESS CLOSURE TIME VERSUS APOGEE ALTI'l'UDE

(95 NM PERIGEE, +45 DEGREE S\'1ATII)

75° INCLINl\TION

I' •. , I

! \1: .. , ~ . , 'I I , I

j ; "

) ... J 'W~~-... --

I 'I i I,' I i I - I

: ,,~ , " !. ,I I I

I .. ':. ..:.. _ ! ... : . ! ' . ! ... . t I' I f 1 : ,!', I 'I' "

\ ,: ' ,!

\: : Iii .: I \'/-\: ;'. ':' ~ ,~:,-/,. II

, I .--Y .~ .. /. - _.. I' f ~ •.• -.... ., •. ' I I

... ___ ..... _ ~/ I!,

, I

I , I ' I

DOUBLE COV'I: Hi\GE AT 5'7 ON IN S!\:-li'; PERIOD '

I ' . ----I---~._--_r_-_1 l...-.--__ _

95 105 115 125 135

l\POGE;E l\LTITUDE (K:~I)'

. ~EcnWL' LLEXl\GON 20·053


1t15

BYC 120·17U/7B . 'ili\~DLI:: VIi\ r~Yj:."l~.:;

I\D ,- 0 Jun 79

, I

Equator

Approved for Release: 2017/02/08 C05094762 Ii'liI1I III,J! ,;iii';,' v. ~

ORBIT INCLINATION CONSTRAINTS

N

- SEfHHi4Al,EXAGONI20m,j HANDLE WABVEMAN CONTROLS ONLY BYE - 12047~-70 DECEMBER 1978 CL - BVE·' RVW - 29 OECEMBEH 1998

O'LlY 21 Orbit Location Northern Limit of

Geographic Access

"r

---------

.' :

- ./ ,/

( latitude Inclination)

Suhsolar Point ( Time of Year)

Zero Sun line


'i'

\ '. , ,:4 :,'~ i'/


~XI\r.1. LOO~3

I LLUHWlH ION VEHSUS LAT I TUDE 75° INCLINATION, SW·1I'~ER SOLSTICE

21-DAY MISSION, 95x120 NM, PERIGEE FIXED AT 40 0 N --_ .. _-----.. --------------~--------------~-----

I'" '::It

L ['!(IT,i 0:1 :.CLE l)i);I·~ ~~ E S )

r-: -1'1 . j0:~--r-;~'[N[~[r,~'·--···-1 1

" ; ),'. I ' '" I 1,1 - f'llD-fHSSION' , I""'" '. ~1', IFF II1AL '1 '/~ /'--'I-~"<~'~-"""" ",.: . ~ -,

/ /: I," ,

1 . . ,. ;,;",,; .... I I>' I 'I I I.',': '" ' :

! " // : 1 •

, / J / . 1 ' ! -.::v<V ~'" ." : >', I '\.<{:i' ,<. .;: I. ", ;

.$' ~/~'-,'-'//I • ! I . F '<" :\-'\.':. 1/ ~' 'I I! "" . ~

~~ .. ' /"1" I· .-.:.--------... -.--~ ....... .' , . ------- . " '-:

'.;/~{ I I ' //"1"'" 95 Nf1' .... '>: / t,1 I I'" >/ \

/ I . ' . 1 . 1 05 r:i~ ~/ .... 7' . /., I /"": 100 ~;:,:

L ;/ I ' . . ! . I" I!' I ,./' ,. I 1 ... I. ' I •

; . 1195 r'I~1 .,; . _.,lO~ 1H1 I . 1 : II /./! i. :~., .//~,./ .' I --- ' , I ., 'V" I" ., "

, - . : I'; 1 l. I! : :,' .,' " • .• I I I I' .'" " : .. . _. . . . - .' . : . . ; .. , :"': .. 'I ,. I····; "';' I . . . . . , . - ;;..: _. r _.-. /. :,/ /;- . o ..... __ . ________ ..... __________ ... ___ ~ _____ .. _ .. ___ .. ____ -t-----... ·····---·· .... "'-"' - , ..... , . .,.

I. . ----~ __ --1-. .

i , I

, I I I

no

60 I , .

20

(0 40 20 0 20 40 60 no SQUTH LATITUDE (DEGREES) ~:ORTII

I3YE 120·; 7'0- 7;: - s~eRET H£.)(AGON 2005.3 Ilr\;WLE VI/\ wnf::,:: AD - 29 Dec 7(~


'" J ..

, :~ '.' /\T I 0 ~ I ,rol r , J ,_ \-

. ':cw c S ) .J ~ ''''''l- L_

,EO

60

110

20

I '

I I 1

I , ! I' ' , /

i / , / ....

- '

r ,


~Xl\GC,. 20053

ILLUi1Itll\TION VERSUS LI\TITUDE 75° INCLINATION, WINTER SOLSTICE

21-0AY MISSION, 95x120 NM, PERIGEE FIXED AT 400N

, ' , ... _,; .. "y! ,--, <t---l--T-"";" 'j--;"-':I'-l,'-"--I,------'-r---'--"/:------r---"-- ,---.. ----.----,--.'-' '-,-,-, I , I ~~ ... I I .. I I

~/ .... '0 I I ' ;: ~ . I I

, /(/;' ',F l'~<~;>i"'" ! ';' ;'""-;'''-'''' I ---11- t~1 - r~\~l~~/I~~SION

,

,;.:-'/ ,I I; I "i -, ", ' I !' I Ii, F F I NI\L " ;. ii' I ' : I I" -, "'" I ' ." '! ' I

" ! I I ~ '"" i' l I I, ! 'I I : l 'j

~l!".; ',',_ I .,,.-~, Mil I -"'~" I ,,',; I, - : ' ! '1 ' '" " A

i :1' I i I' ""', ' .... '" ' • . ~~J' I .' , - "'/I" I I I .-: .',' ,~ . , ' ...." /' ,

I .r' I I . , " , ,,00

I : . 0'J'.I;

" I.' "4-I "-~.', <f'

__ .,! .. ,' "-... '."'--.'--,~ I ' I , -"- ,

100 Nf.1 "1 .,-'.... i 105 N!1 , I

, " ", ", .

~" I '. "

, I 1

I

' . " ":, , -., I

i ' -""-~i "': I 'I"':' ii, ,!, ' I ': -', -: ' '; i! I 95; N('I "~~ ..

i , , ,

I

I ! .; .. - ~--! ... :.: ." .:" !",. ": ':" I'"~ ,"" ,--"- '\" o ~-- _____ ... ___ -. __ .. ___ ~_~ ____ . ____ .,.--...._..____-_---.. -.---.---~~-t.---.-----·: ' .. \ ... '... _~. 1

GO 4'0 20 o SOUTII

L~TITUDE (DEGREES) 20053

20 40 NORTH

60

BYE 120·178- 7:~ Ht,r/OLE VII'. [)Y[::;,;: 1\0 - 29 Dec 7E

;;':i·:-l i:\';',' 2') Dec 98


-Approved for Release: 2017/02/08 C05094762

~I' - "iON 20053

NRO PROGRJ\t1 A HEXAGON SLANT RMJGE NIl RS HODEL'

PROBABILITY OF NIIRS 4 OR BETTER FOR DIFFERENT ALTI~UDES AND OBLIQUITIES

PfWCl\C 1 L I TV

1.0,; :' -: j-,--, ~----'- i

: I ! i I Ii" I· .. -,iONOI !... . . " i : ,"I .. _--, .. , .. !, :j" .1,. -,""":--:'"!'

- 135 N:1 I\LT Ii" r·.. ·,·1.. 'I. I !. I 1-:--9~:-:·-t·'·I·I-J~ " r .. I .. ! -,I ·1 .. · ... -j. ! i .. "! ..

. 5 I--.

t --i'~'-__ -': I ! -L:' ' ':-"1 I ',"" I ... - ;-, , 1

105 I I 1-:-_ ! I· ... '~·, ,I'; : '-'115:""; :-"1 ~'I-~- " ~I"'~',' i I"~ I 'T' "i - "':'

. "'~"'" 1 ~ .! I !. - .'-~~ ! ; ..... !... i ' , I '''--' 1 I !

125 '-----:---..:'...... I .. " , ' _.

L ;-,.-1....: I -{..-'--~-..; : ! i "t~ " o '_ ... ~_i ~ ! "' ~' '" .: "'-,,,-_ -+-___ I

o - 15 30 45 60 OBLIQUITY (DEGREES)

) .0 r ,'~ '[li II:! I\LT---i---l' ---r--i-~l~-:-~~'--T---r " ... _- " '..' . 1 I

i __ 'h,._ ..... : " -- :---!, -.1 ' I ~ ,,' .. :5T--;E..~.E.~. . '1)' " "," -~''''' ",. I "" 'I!' I. t J '. 1/ I "", " ":. '.'. I .......... Ii. I i -,-~~ 1'1'!}"'-' 'i ,',.,<.:~: :/:,':.: .:;::':;~.,- ~-_ 1""..1 ~'I ' : .. I . .... - I .. ,'. .'. 1. I 1 • ' 1 ", I '--.., , I. " ,

.5 -r-·-,25, '''' : : I·~',J" '1"--r:',"l>1 ;"'11 : ~ --1'- I I " . I' . .' ,

135 - 1 ,"'- '- --' - , ," --' "".' 'I'.~,.. '. -- .. ", f'- .... ~' .. -'- '-... -,~.! :-- 1'<· ", " :'<~/, '. ' " . .

1 ti.l , I , '-. ' ..' _, , • !_ _, • ,- -'_,I , I :-'·1 ' . -. ..." I' ,'. 1- : I ~-.... '~ I ..... ....... ...... . 1 '- .','

I ~ " '-1""' -"--';<.-' '~"I":':' "/'.,: '~'" ; '-l, -.. ~! ~.\':: :: : . ;,I! ,1--......:....... ",' ;, ... 1 :---"., I· '" ' "'" ' " , , . J I :....J ",., I' 1 "i 'I '. ... ," I . , • .,............,...... .,. J ., .' J o .... ---' '----.... ~ -.---.----.. ,---- ,_· ...... _:~_I-·~--.. 1---------.. ··- • -

. 0 15 30 45 60 OBLIQUITY (DEGREES)

CL: n'r';-;-l :':'/1': 5 Jan 99 ro~ SE6R~T I:I.EXAGON 2,0053'


RECOI1!:lEI-IDAT lOllS

o j'I/\X. O[3LIQUITY SHOULD BE 45 DEGREES

o STEHEO SIIOULD BE USED FOR ALL l·lOiW REQU I REI':ENTS

o At TIHJDE SHOULD NOT EXCEED 105 NM HIIEU H1l\GH1G

I3YE-120tJ73/78 Hl\NDLE VI l\ In' r':::;i\~ 1\ n - :; .11\ ~J 7 G

l I

[~70 INCLINATION


o RBI'T INCLlN'ATION CONSTRAINTS

N

~E XAGON12u053 HANDLE VIA I3VEMAN CONTROLS ONl V BVE - 120478-78 DECEMBER 1970 Cl - BYE,1 RVW - 29 DECEMBEn HI9H

Northern Limit of Geographic Access ( Latitude Inclination)

: II' (il.l(lll

Day 21 Orbj't---2~~m~~ Location

Zer,o SUA Line

.I

Equator /'" .--, /'

./ /,

/ /

/

'----- Subsolar Point I Tin~p of Vpnr )


, I

; lJlI ~L E','f,TIO:J \:;::;LE ~::;~GREES)


- SeCRET l-I:CXJ\GlJ., 20053

ILLUHI~J\TION VERSUS LJ\TITUDE 60° I N'CLINJ\TION , \.JINTER SOLSTICE

21-0AY MISSION, PERIGEE BRIFT 52°-60 0 N - -- -.---~ -- --

,.--_ ..... __ I ....... _- .. .- ~------ .. ------------ ... ---1·

I I

I ! ·_- ... -... :'- -.-'- .- -r---'-'----l ;?N'--i-I .. -'-.l--t-. :.---I-Ii _. __ ---L

1 i . ,! ii' I i 80 : '/: . I. '" : I: I

Ii" i ' ; : I ; i

i . I - I1HTlAt I ·M - MID-MISSION ~

60

20

I ',/,; I ; " : i , ~ I' . I i I,,' i . F - FINAL I , : ... : 1 i; I " I

,. i : i ' I ..

. : /....: : i' I !" ,.( ; '. rio

.. ' I ! : i' " ... .. , " I'

/,.,,, /'-~'''k.I \" ., I . -'" ....... , '"

/ ' I F'--......~~.~ / ' ! I " . r.r

.I I" <A / . :! '~.~/ I· . . i -:,:.,;oJ'~ ;

/'105 Ni1 .. 1 _. I I ",/~~ l I : "I f I ;'~ II Ii. . "'\

1,/ I ' \,' I i '-

[' 105 NM ~1: 100 NM ; 95 foli',1 '\'

; \

I

/ I

/

'I I

I ,

i I

I

I I I I· I

" , : ..... ':-,. . :. • I .... -.. .... -. • . , • : 95 WI

o i\ ___ ~_:_·.:~ __ --_··~~L~ __ ~-_-_·:' __ ·_···_··_L~~J~_·~.:_.:~i_~.:~ __ !~ __ ~~J_-=-~~ __ >\.· .-< 60 40

$OUTII o 20

LJ\TITUDE (OEGR5ES)

~EXAGON 2<0053'

40

NORTH 60

eYE 120-172-7.','; It{\::OLf v Iii ~'iL:':;\:1

AD - 29 Dec 7:·:

J

:.: !)Y[~-l 1·:'/\-; 29 Dec 98



- Sl~CHg'l'...lIEXAGON 20053

81'S PCS ,PERFORMANCE ANALYSIS STUDY

OPTIMAL ORBIT PARl\HETERS AND Rl\TIONALE

P /\Hl\fvIETEH

INCLInATION

L:\u::cn 1~\NGE

P i ~ I~ let: l:~

1.(1(';\1. I./\II::CII 'n;II': (l\PPHOX) - :~ I 1).\'; ilIr;~; ION - 1·1 ,,/,'( il L!-;~; rCIN

/ J),\Y ~If!-;SION

HAGNITUDE

~'1'l'R

95 NM**

120 NM

3:25 PM 3: 00 P(\1 1: 55 P,t-1

:'

0

0

0 -0

0

0

RATIONALE

COVEns HOST HEOU I HEr·1ENTS (9 ~ • 5 ':. ) ASSUMES K~ GETS REQ'TS NOT ACCESSED DASELINE STS CAN Acnlr.VE 21 DAY MIssioNS REASONABLE SUN ANGLE COMPHOMISE

REQUIRED FOR INCLINNl'IONS ABOVE 58 DECi!!:l~S

STS PERFORMl\NCE LunT TOW\HD GOOD QUl\L IT'{

o SEVEN DAY ACCESS CLOSURE J\ND GOOD QU/\Li']'Y

o nEs'r QUALI'l'Y FOR OLD RI-:QUIHEr-lI·;;-n's o HEASONl\BLE OUJ\LI'I'Y Fon SO. IIE:·llSPIII:ln: H!:')''l':';

o BEST SUN ANGLI~ FOR ALL REQU r HEl\lE:---JTS OVI:I~

TilE (\1TSSION. TillS HOLDS Fon ALL Dl\'lS OF 'I'lIE YEl\H.

;. : ::;1 i, ; : .1)

10. ~ , : I i'- II ; i ,I ) iii: 1:0" IF STS PEH:-lI'l'S (BE'l"l'lm SUN, ACCESS Horn: ImQ'TS) j':i': W> Of{ 90 Nt·l IF S'I'S PElUlITS (BE""J'ER QUl\f,l'l'Y)

~XAGON 20053·


nVE-120<17n/7f1 I1NlDr.r-: v T l\ ll'n::·::·.:;

'/\D - 5 J MJ 7 ()

Approved for Release: 2017/02/08 C05094762 13

MISSION SCHEDULE CONSIDERATIONS

FACl'ORS

o HE(lU] HEi'lENT _COLLEcrrON . PEIUODS - LE1\D TO EVEN SPACING AT 2-, 3-, or 4-f-10NTII INTERVALS

o ~-;lJN l\NCLE - l\VOID \\lINTER SOLSTICE

o INTELLIGENCE UTILITY - EMPHASIZE SPRING THROUGH -FALL

o GEt~EIU\L - HININIZE NUNBER OF MISSIONS, MINIlvlIZE DURATION BEYOND 7 DAYS

St:f,!:C'n:1) NO:1JNl\L SCIIEDULF.S FOR ANALYSIS

~ll~jSIO:JS Dl\YS r j-: R I3E'1'\-:r':EN

YI-;!\.){ Ll\L:~\:CIl J F M A M J J A S

G 61 -I - --I - - - - ---

5 73

'1 91

--

I-~ __ , .- - - -, -_. --

3 12,2 -- - - - J I

-- 5 f~CRPT IIEXJ\GON 20,053 -. . . w: ::- I i ~ V \ '! 1 1 Dec 9 8 /'


o

-

N D

I -- ----

--

r-

"

EYE 120478-7<1 li!\~~OLI= Vlr, H'{f::-:;\:: CiU\~l~Er.S O~~ I.Y i\[) - 11 Dec 7 It

--------1

, i

L


~Xl\GON 20053

'COIJI,EC'l'ION Tl\RGE'l'ING STRl\'l'EGY' CONS I DE Hl\'l'I ONS

---- ----------... ----------- ------------------------------------._- -- - - --

o

o

COLLEC'1'ION PROiJI,EM IS SUULl\R TO rplIl\T OF HEX1\CON

COLLECTION S'l'Hl\'I'EGY SIMILl\R TO ~IIJ\T USED FOR lIEXl\CON

"I'UNI'l'Y OPEHl\'l'ION SELECTION LOGIC SIMIL1\R COLLECTION CONTROL p1\ImMETERS

o tMl'HI\S I S PLI\CED ON J\CHIEVING QUl\LI'l'Y REQU I REMEN'l'S

N,Eh' CON'L'IWL Pl\Rl\NI::':I:'ERS: f-1J\X ATJT, H1\X SLl\N'l' Rl\NGE S'l'EHEO COLLECTION 1\(;l\INST MONO REQUIREMENTS (t-ll\Y NOT DE REQUIRED WITH FILM 'l'YPE, E.G. I SO 315)

o VALI:JE FUNCTION HODIFIE:D SLIGlI'l'LY

CELL l\GE CONSIDERED ON 1\ "HISSIONS OLD" B1\SIS FOR VALUE AL'l'I'l'UDE ANiD SL]\NT RANGE 'l'IIRESIIOLDS ADDED peUN NODIF lED '1'0 INCORPORl\TE NI IRS

- ~ECRET HEXl\GON 20053 -


BYE 120470-7P. lll\t~DLE VIA BY 1-:;·:.:,:1 ld) - 1 0 Jan 7 9

i I'

Approved for Release: 2017/02/08 C05094762 ~:Xl\' 200S3

OPEIU\'I'ING CONCEPTS/PERFORMANCE MEJ\SURES

OPERJ\TING CONCEPT DEFINES:

ORBIT DUR1\'l'ION, LAUNCH 1'IMB SCIIEDULE

PRIMARY PERFORrtANCE MEJ\SURES:

STATUS: XN - ANY l'UIRS RN - REQUIR'Im NIIRS DN - DESIRED NIIRS

J' J

CX - BASED ON RN, DN l\NO DESIRED NIIRS PEHCENTAGE

LEVELS: OVERJ\LL - ALL, CURRENT, NEW COLLECTION PERIOD - ALL, CURRENT, NEW REGION REQUIREMENT CELL GROUP (67)

~!::GRfT lIEXl\GON 20053 -


n Y E ] 2 0·1 7 8 - 7 e H,\:~DLE' Vli\ n-n'::'l;\;; CIIt,;'!i'JELS O~·J L \' 1\ D - 11 Dc· c 7 B

I '

.'


~lEXl\GON 20053

DEFINITION OF COMIREX (CX) STATUS AND A/R

, I

l

---------------------------------------------------

:C,J STATUS - PE(~CEr,I'I' Of' AREA UNIQUELY INl\GED CLOUD FREE \'lITlIIN .'rllE PAST COLLECTION PEH rOD AT ANY NIIRS (XN)

I<:J ST/\TllS - PI:~RCENT OF AHEA UNIQUELY IM1\GED CLOUD FREE WI'I'II REQUIRED NIIRS (HN) OR [j!:T'i'I~H \All '1'11 IN TilE PAS'I' COLLECTION PERIOD

D:J ~;'J'/\T[JS ... l'EPCEtJ1' OF 1\HEJ\ UNIQUELY IMAGED CLOUD FREE WITH TilE DESIRED NIIRS .(DN) OH BE'ful'ER \HTIIIN 'I'IIE PAS'!' COLLECTION PERIOD

C:': S'j',\'i'US = LESSER OF [(HN STATUS) OR (ON STATUS • laO/DESIRED NIIRS PERCEN'f)]

i\/H = ACCOj.JPLISIIED STATUS/REQUIRED STATUS

'l'VP}CI\T. Ex/\rWLE

Hi':(lU 11{1,;j·jl,:rl'l'S: RN =3, ON :::: 4, DNP :::: H 0, REQUIRE!) STNl'US = 807.

i~ :~ S Ti\'L'1 J S -- r. n ,:, 11'·' .. / ~;'I'f\TIJS - 13 5 ,:" n: I s '1' ,\ '1' 1I S = GO';',

05~

7SJ CX ST,\TUS - LESSER OF OR = 759.. GO, (100/80 ) =

c·: I. 1\/H :::: 75/80 = .94

('-: ,",,:.: I.'; 'l'l;r: O::LY rr:Rl'o,r:·'!j\UCE,HEl\SURB h'IIICH DIRECTLY CONSIDERS l\1.L DI·:1.Hll,:l\i,I'IO:J, ()I',''-:',';'.'','/ ','! ;:::I.I::i::;:., !-.::O l~;,\i.:;~ SUCCESS CRITERIA J\SPCC'l'S OF SYS'l'EH PEI~FOH':;'.:';Cl': Hi:1.7\'i'IVl·: 'j'o, '1',:': : J 'I','\'i': .1) I\j.:I)(J I I·~r::!l::·:·i\~).

(4 L n nf,", t1 r.' 'V 1\rn:"l -:> li'\J),r; 1 Approved for Release: 2017/02/08 C05094762

H'tE-120'178/711 li/\~mLE VIA n'...'J:::.~,:l

AD - 5 Jl\:J 79

'I .

o


5 ECnF..:'i' .JII::Xi\Gud ,---I __ ~

STUDY TOOLS

STS PCS FIRST OROEH l\Nl\LYSIS ~100EL (FOl\H)

FEl\TURES RCG LEVEL CONTHea.1 PAIU\f-'!E'I:cns W;Ul LEVEL ACCESS OA.'1'l\ r~CCUIll\CY

. 72-75 JDNEPII IIIS'l'ORICAL \'JX DE'l'l\ILEU CE[,L Vl'.r~UE FUNC'l'ION PROGRAM A SLANT HANCE NIIRS MODEL (MONTE CARLO)

(b)( 1 ) (b)(3) 10 USC ~ 424

Au'rOHATIC I'l'ERATIVE FILM USB ADJUS'l'HENT (DE VALUE 'rHRBS:IIOLD) EXTENSIVE PER MJSSION OUTPUTS

l\T ReG l\NO AGGREGATE .LEVELS

LIMITl\'l'IONS: .l\ll\NU'l\IJ CON'l'ROL Pl\RANE'l'ER SE,!"l''ING SIMPLE SELECfJ.'ION LOGIC: 40 SEC DEs (+45 0 S\-.JATII)

DE Vl\LUE 'rIlRESHOLD

o l'10DIFJCD I1SIH l\ND IISIH OU'l'PUT PROCESSOR

FEATURES IISUI SEI~ECTIO~J LOGIC ~ND FIDETJITY VJ.:.:HY EX'l'I::NSIVE PER MISSION Ai'lD rnSSION SERIES OUTPUTS

AT HCG l\ND l\GGH.EGNl'l~ LeVEl,S

L [;'-tlTI\TIONS: M .. \~lJi,\L CON'l'[·WL P/\,p,A!'1E'.!'EH sr-:rj"l'I~G

nCG IS TilE LO\'JES'!' LEVEL OF CON'l'l{OL (NO /\Cl\'I'S) oml]~~\\'l\HD l\U'1'0:·11\'1' IC FILM AD.') 1I S'I'i'-1 I'; wr

ACIIIEVED BY DISCAHOING Lm"EST Vl\l,UED OPER1\TIO~JS

SI<;,cnwr UI:Xl\GON "-I __ "-


BYI': 12,0'178-78 1l,',::DL:-: VII'. BYE>:/\~~

Ci!l\:'~:'~,J::f.S O:jf,Y 1\D - 11 Dl:c 7B

! . l


SF,eRe'" -HEXl\GON 20053

l'I\I'; /, iN INAHY FOAM l\Nl\LYS IS OF THREE MISSIONS PER YEAR, 9S 0 INCLINATION CONCEP'f

cr\~;l':~; 1\ OLD REQUIRErvlEN'rS ONLY, 21-0l\Y NISSIONS B OLD HI::OU L Hl;:nt·:N'l'S ONLY, 14 -Dl\Y MISSIONS C l\LL. HEOlJIHEfI'IEN'l'S, 21':',OAY MISSIONS

Cc);·!'()T'L'IONS: Ll\UNCII Dl\'rE~-';: 15 FEB, 17 JUN, 17 OCT (""122 Dl\YS DE'nmEN Ll\UNCIIES) "X 12 14 0 n B 1'1' : 91 xl" 0 Ni'1·

. _ I . ... ,

~;JX f\ITS~-lTONS PEH CASE - RUN 1\S A SEQUENTIl\L SERIES Fon 2 YEl\:lS Or.'8 In:ouIIn:r,lEN'rs INITJl\LI~ED rnOM 1214 END-OF-NISSION STl\'I'US In:':! nI·:quuu·:r'1I . .;NTS 1\L1. s.v:'l' OVEHOUg PIUOH TO FIHS'!' ~nSSl0N 1(.0,000 FEE'I' (+20':.) [O'IT..M prm. SIon (1.5 x .75 x 142,(00) 1972 M.JD 1973 jDtJEPl1 IHS'l'OHICI\L WENJ'I1EH CO.'J'l'ROL Pi\!{J\t-11::'l'EHS SE'l' Ml\NUI\LLY USING EXPEHIENCP. IN CIIECKOUT HUNS DI,S I"OH 'j'l\HCI';'l'INC IS B/\S,ED ON r~EQUII'{/m Nlll<S

~~I\i"l!': I\S Cl\SE l\ ~H'1:'II 75° INCLINC/WION, 9Sx120 W·l OIWI'r'

-5r::~RET HEXl\GON 20053 -,


BYE 1 2 0 ·1 7 8 - 7 8 I!:\NDLE VII\. BY!;>l;\~;

l\D - B J.:m 70

I I


SHll1J,l\'I'I-:D STS pes 3 21-Dl\Y M\;,[,JO~~S PElt n:l\H 1'\':RFr)l(;'\l\t:o:

/\Gl\ r N!.i'l' CUHIU:N'l' l\ND PI10,JEC'l'ED 1905 S'l'i\NDING SE/\HCII RI':QU I1U:i':EN'i'S

---- -----,----,----------.----------------------1-------------~--

Cloud-Free (XN) EOM Status COMTHEX (,eX) EON StiltliS

___ I-,M~i "'-s.:..:.~;.::..i.:.:.o..:..:n'_____' __ _=2=___~3 ___ 4: __ _=5=___.§_l\ VG_, ____ 1_ 5 2 3 G l\Ve; ---

I( "11- r '.' II L

II ·1 ;:'" I

! , I !

') i',) ,.'1 l (,:, ,

I I; r;"

/1"',', I',;,' "; I ji::,'-:i;;:TS

! -.1 I

"II '--,II" II\.

~ I I I

, ,I' )

·1 I' I

I .. "'}

93

% 80 09 95 96 9G 92

57

8 ') ]7

94 7'J 711 1111 liB WI 110

41)

2J III

"". ",.- ·I .. ·~·l - -;:-~;·I:~~-I O~\-;;-·-

," ,;,' 0/: lll'~ '-~I/OI {J,t 1;:i~;~;.i0I1 (j

93

90 0,\ 95 9(, 99 97 97

69

112 'j fJ

H'} (,')

11'1 I Iii 117 III £1(,

flU ';(i ,r ') J~

96 96

96 96 92 91 95 97 99 99 98 98 9B 90 98 98

77

05 71

95 7') 110 92 07 £12 07

70 (j2

63

81

1)0 7'1

9') 112 In I) 'j

n B')

90

00 (, ~)

7l:

"

93 97 95

82 93 92 80, 9) 00 96 96 95 99 99 ,<io 98 98 90 99 99 911 98 98 97

00

85 77

fil (, (i

II') 9·\ 90 90 07

81 71 70

02

89 711

91 II)

H'i 9'i 90 III)

09

79 75 81

01

06 70

91 7(r Wi 92 01) fir, 07

90

51) 07 8,0 95 96

I, 9 Ci 92

54

02 H

(.0 77 -,-, 07 un 117 00

45 20 13

90

52 UJ 95 96 97 96 97

70 55

51 (,n 1I '\ [lG 11'7 01 06

65 f.l 41

94

(,2

91 95 99 90 9[1 98

71

02 (, -,

'j(i

7') fl'C)

n flri 01 11(,

77 ')(i

50

94

(, ·1 91. 9(j

99 90 90 90

7(,

(, )

112

90

40 57 79 9) 96 96 99 9') 98 98 99 ,9') 90 911

01 7J

311 (. 'i (l1J 'J ·1 11'/ 90 0"1

711

[IS 'I J

I',l /I)

II ,1 (),',

'H) U:l H')

7(i 79 7S 71 (,9

r)<) ,(,6 'j" 6)

57 B7 9·) 9H 9il 'HI 97

711

Bl J ,;

r, t "', , ",I '1,1

Ii',

II"

7 -, "I

-, I • .1 I " •• 1 )1

---------------------- -

Since new rCIl]ulrementr. wnr.:;! initializcd with no ~;I.i1tU!;


~ , I )

I J :


2-1'\OiHIl REQU IREH13NTS PERFORtilANIOE VERSUS T I.HE

(9]0 InCLINATION, 3 ,21-DAY r-tISSJONS/YEAR, EACH CELL INAGED ON EACH ACCESS)

---------------------..,------------------------- --~-----"- -'.! .

CLOUD FI<[[ ,",:IY il I I HS (X:l) ST/\TUS

r (_',~: ~ II; _ X ~) i ,', ,I ; ~1

100

80

60

40

20

a 1 I

-100

80

GO

fl,0

20

0

i; I' I' :r-:': j, !~ 'I I !~ Ii -; !Cil: I' , I '\ I I : I I I

j ~ , 'I I

'I L_ I ' 1 I ,I I ,I ,I,

.. ; i '-', .11 -"i,'j 1":- !:!~ 'I i I , I I, ! ! I I. 'i 'i i'" I, I' I"

: : , "i I

, Ii' I" : ,,~ i i .. !" :1,'-' i I :1,' ! i : i I! I" i :

: '" "" I ' "I 1 Ij, ,:! i": i ,I ; 'l" : I "-j' -, " I i

: I:! i"': I'! I I "I' I, II , I' !., I!," " I I'" I I, If' , I" I: 'j:!

I, ; I

, , : :

_I !' : Ii i . ,:

~

,-, , i I' I j,

I, I ,-

; I : l- I j:

:~

I ,

: ! ,

;

, :

-1-1---l-LL1~-~L11-: Jlll'-__ ,I_l __ :J~~j-~_i -- r: i ! I : I ! I! ~!: :! : i : ! : ;' : I: i REQUI,RENENT IS 80Z Ii:!' , ' - -I'!- T T'-'I :'1'-: -I ~ -, -: -II ~ T T - -1' 'I' -;-1--

I • • • I I I I I I I

I I I: : ! I • I.. I' ;

: ' ! i 'II : 1-: -I: :"! ;11

' i : i :-: \ ' I;: 'i; 'i I '\

i I :_ I'

i ' !, 'j, : j -, \

' , I

'j , , ,,- "i i "

I

! i , I ,

I

\

J' F ~1 ,\ ~i J J 1\ SON '9 J F 11 1\ 1,1 J J A SON 0

1972 HX 1973 HX


AVER/l.GE [0;:1 X1j STATUS = 92:;

AVG. OVER 2 YEARS STATUS =: 46~,;

I\VEH,\GE Hr'l ex STflTUS = 57',

AVG, OVER 2 Y[~RS S TATUS ~ 2~:J::'

l

r·.![p;.(~E

r::n Oil-! i 5S r n:: Sl ;\TUS


f,'!el(I\GE 2-f.\ONTH REQUI REf·1ENT5 PERFOIH·1ANCE VERSUS r'lI 55 ION: DURAl fON

(EI\CH CELt IMA~EO ON EACH ACCESS)

100

80

I I , I I t I. .. , I. ;

I I I .. I .0 ,

!

: I I f

: I - . . I

I ! I

I I 60 , , i. ,

40 I

20

o o

. .. i I I

0

"

I 0

I !.

i I •. I • I

I I I I

7 14

NISSION DURI\TION (DI\YS)

i '1

- .1 ..

I !

, I I i ,.

: I

I I

I I

" . - J

o

.. t

I -·1

21


o 97° INCLII~I\TIO:1

o 91x140 rH·! ORr,n

o AVG OF 6 NI 5S IOnS

o AVG OF ALL 2-~O R0TS

I I'


FOUR-YEI\R lIU\T!IEH MlflLYSIS OF HIE 107 HIDIVlDUI\L 2-t·l011T1I CLUS1TRS

-------------- --- ----------------

I) : --.-------

I I

o

t\S:~lI:.iPTIONS - 7-,14-, and 21-DAY tHSSIONS STARTING EACH DAY FOR 4 YEARS (3Dl'JPEII) - DI\YS DETl~EEN ACCESSES CQr1PUTED ANI\L ynCALLY, FIRST ACCESS RA~DOi'i

PERCENTILE RANI\ING DONE POR EACH DURATION-

{\ VEIUIGE U:: H)IJE PERCENT

CLOUD FRlE

AVERAGE FRACTIOn OF MJSSIONS

~I ITH 80% OR t~ORE UNIQUELY ACCESSED

CLOUD FREE

AVERf,GE FRACTIO~J OF r·ilSSIO:IS

HITH 20~~ OR L [S5 UNIQUELY ACCESSED

CLOUD FREE 1.0 1.0 \~.-------------.----

'\ '.1 \

-, /

LLlJST[H

21

.8

i

. fi ,I I 1

.4 I i

I. ,I .: i , .' f J /

.2 1'.,' I

o

I :'

. I

I ' . i

o

--

-' BEST

.--- .--.-"~

~/ ...... - WORST ~/

.. --_. - .. ----,---... --. ~

7 14

MISSION DURI\TION (DAYS)

.2

0


HOHsr

L BEST ._-- .. _._- - -

:0 7 ill tj :1

'I'

i.. ,

11)0 .

60

( ','" , ""'r) I I L!.I.i It "

:': )

Ii ,)


·1-i-:orrrn r:fQUIR[i'-1:=i'aS PERFORi·:J\~KE V[!~SLJS TI!·:E

(97 0 INCLINATION, 3 21-DAY MISSIONS AER YEAR AGAINST .CURRENT REQUIR[~ENTS

.. I ! t .

I ·1 1

\ - . -F

...

r·j 1\

! I

; ., , !

I , ,

I

J 1I ,J ,1

1972

'j

I !

II II

J I

I,: \:

I I .' r

I

II : I

, , \1

I '1

i "

: \ I , i \ : I I . , i

I I ; I l I ' : , ;. ' I ! . !\ 1:1 I ./ \

i

I

.-_ . .1. 1 ......... : ... _ ... ! . L_._-_; ___ l.l .. _ ... :._.-- -.1 .1 ... -.. _-1\ SON D J F' N A M J J A SOt! .[}

i973


EOII

.~ REQUIRUiUIT

AVERf,GE [O!] ex STATUS = 87 .,;

I' l

100

80

60

,; I (i:: ; :'). ~.' I: I) , T , ~) f t, ! i !'-;

~o

iO

()

'\.,: , .••• of


~EXJ\GUN 20053

PERFORW\NCE VERSUS FILH TRADES FOR DIFFERENT DURATWNS

, ' ·...1-t ' __ 1-__ L. ___ .j __ ~_ ..... _._ .. --' ___ l--_. __ ___ --.----, ----.. ,-----T·--: r--:--;- i: I ' ~ ,

, .: ~.,

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I' \ )

: : I ~

j, I '.:,' I :. ," I :.

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, I:

... I t ••• , .. ...: ... ~~-

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, c' - . I (.! lJ " . C :J/ J! .,' : . .' ! , I I , : .. -- .':--,-::,'~:~

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6 MISSION AVG FILM (F[ET)'

- SECRET I'lLXAGON 20053

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30K

eVE 12C!!7;~-7;;

1\0 - 22 ,1.ill /'J

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SJ'!CRr:'I'..lmXJ\GON' 2005'3

AVERAGE END-OF-MISSION COMIREX STA'rUS SUM~ll\RY

(SIX MISSIONS SIMULATED PER CASE - 3!YEAR)

------,---------------------------------------------~

Current ,

All Cur- All 2* 4 6 9 12

Case TIle l. Our. Req'ts All rent New Mo Mb Mo Mo Ho

0 21 C only - 92 - 57 87 94 98 98 l\ <) 7

0 1tt C only - 89 - 40' 80 91 96 97 B 97

0 21 C +N 78 83 74 53 76 84 92 89 ,

I 80 0 21 C +N 81 82 39 74 83 91 89

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18 t40

98

98

86

81

Nc\v --

24 9 18 24 No fvlo l'10 No

97

97

86

87

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- - -

- - -

77 71 G9

86 78 70

BYE 120473-7B Hl\:';DLE V T 1, . B\,/::·::·.:; I\D - 22 Jan 7<)

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~E:·U\b~.J 200'33 \

51'S PCS PERFORMnNCE ANALYSIS STUDY

PRELIMINARY CONCLUSIONS

o 1'·IOIlO IU:;QU.tRJ:~1·EtJTS HUST DE TAKEN IN STEREO TO NEET QU1\LITY REQUIHEr-mNTS

o 'l'IIHEE 21-DnY (97 0) MISSIONS PER YE1\R C1\N ACHIEVE S.J\TISFl\CTION OF CURRENT

!U';QU I \n:~1ENTS EXCEP'r 2-MONTII REQUIREr.lENTS

l\VERl\CE END-OF-f\lISSION CX ST1\TUS FOR 2-MONTII REQUIREHENTS IS 57 PERCENT·

l\VERl\CE OVER '1'IME CX STATUS FOR 2-MON'rll REQUIREJl.lENTS IS :! 29 PERCENT

f'CRForU\l\NCE i\GAINST 2-t10NTH REQUIREHENTS SEVERELY LIMITED BY PCS QUALITY l\~; \'JELL l\S NUNBER OF rnSSIONS PER YEAR

1'>1 I XED. Cl\ P l\lH LI'l'Y l\'Gl\l!NST SPEC Il\L SEl\HCII REQU I RENENTS

() Hi':DUC 1 ;'JG r·n SS ION DUHXl'IONS >FOR TilE l\OOVE CASE TO 14 D1WS Cl\USES:

FlIH'I'lIi:H REDUC'l'lON IN 2-~lONTII 1\VE:R1\GE END-OF-r-nSSION ST1\'1'US (i] 0 VS. ~ 7 rr:nCJ:::T)

OCCT·.S IO~Jt\L ~10DEnl\TE SHORTFl\LLS IN SPECIFIC REGIONS FOR 4 -f\10NTII REQU I RC·~I:~!T~)

~;lj:~S'L"\:l'l' J l\LLY REDUCED Cl\PABILITY AGAINST SPECIl\L SEARCII HEQtjIRr::NE:'~TS

CO:J'I'r:~UED Sl\TISFl\CTION OF OTlIEH. REQUIHEMENTS

- SECRET ..uEXl\GON 20053


!I'{:-: 1 LO·17';,!"/:i 1i"\l'lDL!~ V l:"\ wn:.'::.:i J\f) - 22 J~ln 7')

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STS PCS PERFORMANCE ANALYSIS STUDY

prmLIMINARY CONCLUSIONS (CON'!'INUED)

o TIlE PERFOf(>ll\NCE OF TIIREE 21-DAY 97° INCLINA'l'ION, 91>:140 N!\1 ORBIT ~nSSIONS I'El{ YEAH, \";"1814 TASKED AGl\INS'1' TIlE PROJEC.:1'ED 1985 SEARCH REQUIHErmNTS:

IIl\S VERY SUI3S'1'ANTI1\L SHORTFALLS AGAINST 2-MONTII REQUIREHENTS

53 PERCENT AVERAGE END-OF-MISSION COMIREX STATUS 27 PERCENT l\VEH,l\GE OVER 2 YEARS cor-llrmX 5'1'1\'1'US

. IIi\S f'10DEIU\TE SIIORTFl\LLS ( '" 70 PERCENT COl'lIREX STl\TUS) AGAINST TilE NEvi 18- 1\l~D 24-f'ION'I'1i STANDING SEl\RCH REQUIREHEN'l'S

l\CIIl r:VES 1\LL O'1'IIER STANDING SEl\RCH REQUIREHEN'I'S

() ·i·!ll~· 1'!:ln'OI~~1.'\nCE OF 'l'IIHEE 21-DAY 75° INCLINl\TION 95x120 Nt,l ORBIT MISSIONS 'J'I':!~ YI:l\H, J!""j APPROX1NNl'ELY 'rilE SA(l.1E l\S 'rilE PERFORMANCE Ol" Tl1HEl~ 21-DAY 'n° H1CLU!l\'l'ION 91x140 N1'1 ORBI'!' (l.l1SSIONS PER YEAR

CLU~~'l'I:H 1'1:IWOR~·!l\NCE IS REDUCED (39 vs 53 PERCENT 1\VG EOT'l CX STATUS)

[:():J-~~U:·l ~~YNCIIHON()US ONBI'r HEDUCIW ACCESSES \\II'l'1I GOOD SUN r\~H~I.ES Mm 1,:!:l)lic'I':~; ,,\VI·:/{/\G/·: SUN ANGLE

TilE LO\':EH TNCLINl\TION OlunT IS MORE REl\DILY ACHIEVABLE \-:11'11 TIlE STS

SECRET UEXAGON 20053


r3 \' r·' ., ') 0 ' 7 f' / OJ .) l ~ l! <I. I, .J (.I

11 ;\ ~ m J. E V I l\wn : . :.' .: : l\D - 22 Ji'ln 7~)

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-- . ------_._-


ISSUES THAT SHOU1.D RECEIVE DETAILED ANALYSIS 'l'lIJ\T WILL NOT DE ADDRESSED FUR'l'IIER IN THIS STUDY

o I.lO~J sr:rnous IS cot-urmx ABOU'l' (A) TIlE NEt'l REQUIREMEWl'S, (B) RN-4, DN-5, &' D:'JP-SO FO~~ 2 nOIJTII nCQUIREr·1EN'l'S, (C) RN-3, DN-4, AND DNP-OO FOR CURRENT AND NE~v i'lONO' 1\'1 :OU I m::t1ENTS?

o ~'; r r.L TilE RELNnVEI .. Y FE\oJER SEARCH SYSTEM DAYS ON ORDI'l'· PER YEAR SIGNIFICANTLY 1,)I:(;IU\IJE HJ'l'ELLIGENCE NEED Sl\TISF'ACTION?

o \.: f I.T. TIlE S'l'S PCS H\l\GERY, WITH APPROPRIATE GROUND PROCESSING, HEET PROJEC'l'ED 1'-IC&G ;:; :Tinc HE()ll I nr:rn~NTS?

f) II! j',': ;\CClinNI'I; J:; TIlE SLl\tJT MNGE NII~S PREDIC'l'ION NODEl.? IT DOCS NOT Hr.COGi~ l ::;1,;

() ~'ll.l. :,':':.1 'i",'PT:.':; OF' FITA·1 (E.G., 050315) stmS'f.:'\N'fL'\LLY INCREl\SE THE f\Vr::JV\GE IUTU::;? ,!,,! I:; U)U LD J:W i\CT ~;l\TISFi\CTION OF 2 nONTH HEQUIRENEN1'S, t·ll\ Y l\LLOi'! nOi\O COVl:i~J\C!':

1J:' :;()::l) I\i:OUIr{EtlEr~'i'S (."'-'307; FILN SAVINGS), AND HIW i\LLOhT IIIGIIEI~ O!WI'l'l\L l\LTIT\;Di'·::-;.

,.' ';':i:: T~:I'I\C1' 0:1 SEi\RCI! E/~PLOI'ri\'rION RESOURC'ES OF 3 OR '''nnE ~;'i'S Pc:-; ,.:, .',:-; l'r:l~ 'd::\r{, i:i,cil OF \'1.iIICil HETURN elOCII Hl':DU~ml\NT l\ND CLOUD COVI;lu:n

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l\D - 5, Ji\~J 79

Approved for Release: 2017/02/08 C05094762" ....

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~ECRgr[' .J.J EXAGv.. 20053

J~;~;UES '1'11/\'[' SI!OUL-D RECEIVE DE'rAII,ED Ai-!ALYSIS 'l'lIl\T \HLL NQ.T BE i\DDHESSED FURTHER IN 'l'HIS STUDY tONTINUlm),

hi!:".'I' 1 ~-; TilE Hlpr\C'l' ON \'/(.;l\'l'IlER Fo.RECAST ACCURACY AND PERFOHr-l!\NCE OF Dl'iSP' NO'£' lIt,; I t"iC SYNCIIHONIZED \-vI'l'lI 'l'HE S'I'S PCS? I ,"

i\ ~1O'I~E DL:TAILED STUDY SIlOULD DE PERFORHED TO EXAMINE VARIO{.JS Pl\Rl\f-1E'rER TRAPES nil< omn'l'S \'1ITII INCLINA'l'IO~~S BETWEEN 70 0 AND 80 0

• STS LIFE SIIOULD BE STUDIED J :'l Ui:'('i\IL FOR DIFFEH.ENT l\Po.GEES AND PERIGEES. SUN ANGLE, QUALITY AND CLo.SURE 'l':\,?\L>E~J SlIo.ULD ALSO I3E STUDIED IN DETAIL.

o \':::1\'1' 1 STilE PO'rEN'l'Il\L FOR ~I ________ 1 TO ALLmoJ FEWER AND/OR SHORTER STS PCS j,; I, s·:~ U I US '!

2-ii()N'l'H rmOUJrn::r'lEN'rs OVi:/!I}UF OTHI':H HEQUlkF:r,lEN'rs CJ r\:~~; 1,r.>;:-:,i·;~:T o.F SEAJ{C!I HEQUIREf-1r-:NTS IN Lo.W CONFLICT REGIo.NS TO. :';;';':'!{ IC nc~c Hl':QUIR1';;>lEN'l'S BEYOND S'fS pes CAPABILITIES

S !~C ftF:'P *' EXAGo.N 20053

, .. I ~l ,J,ll) 99


H~'E: 120IJ78/7B 1:!t\NDLE Vli\ in;;:-::.:! ld) - 1 (3 Jan 7 I)

(b)( 1 ) (b)(3)

'I'

10 USC .1424

::;:I:;C'!ti~~L I: .. , L .•

Approved for Release: 2017/02/08 C05094762 ~S'--r-'-'- -l~'VA j I

(b)(1) :EXA

PLAN FOR REMAINDER OF STUDY (b)(3) 10 USC .1424

---------------------'---------_. -------.------- - .. _-

J\C'l' 1 V ['I'IES

o CALIBRATE FOAM AND HSIM :

o FUn'rIIER ANALYSIS OF 97° l\ND 75° INCLINATION ORBIT· PERFORt-IANCE

o

o

o

ANALYSIS OF 14-Di\YDURATION PERFORNANCE

USE OPER1\'l'IO:--:AL HEXAGON SIMULATOR (HSIH) FOR ACCURA'I'E PERFOHr--lANCE PROJECTION

I\Nl\LYS IS OF 57 0 INCLINATION ORBIT HX' GAP FILLER PEHFORj'v!ANCE

P'ERFOm11\NCE TRADES FOR DIFFERENT FILM LOADS AND DURATIONS FOR CURRENT REQUIREMENTS ONLY,

FINl\L STUDY BRIEFING 4 APRIL 1979*

FI~l\L STUDY REPORT 30 APRIL 1979*

A ()::!~ ;.:O:'J'l'1I SLIP FR0l'1 ORIGINl\L PLAN

SECRET IillXAGONLI ____ ~


BYE 120478-78 IIMmLE V] rl Wt'i::'l;',:J Til) - 2 2 ,) .1 n 7 ()

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