Monthly Performance Report April 2014 - ESSP · EGNOS Monthly Performance Report - April 2014 Date:07.05.2014 Page 11 of 32 3 SAFETY-OF-LIFE SERVICE (SOL) 3.1 EGNOS Non Precision

ESSP SAS, 18 Avenue Edouard Belin, BPI 602 31401 Toulouse Cedex 9

Monthly Performance Report

April 2014

Reference : ESSP-DRD-11694

Edition Number : 01-00

Edition Date : 07.05.2014

Status : Released

Intended for : General Public

ESSP SAS Doc: ESSP-DRD-11694 Issue: 01-00

EGNOS Monthly Performance Report - April 2014 Date:07.05.2014

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ESSP is organizing on a yearly basis the EGNOS Service Provision Workshop for EGNOS users and stakeholders,

the perfect place in order to receive updated information on the EGNOS system and services, implementation

information and success stories and to collect feedback from users and interchange ideas and experiences among

EGNOS users in different domains.

2014 EGNOS Service Provision Workshop will be held on October 7th and 8th at the city of Lisbon.



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European Satellite Services Provider SAS

18 Avenue Edouard Belin, BPI 602 31401 Toulouse Cedex 9

Société par action simplifiée

R.C.S. Toulouse 508 275 286

SIRET 508 275 286 00013



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TABLE OF CONTENTS EXECUTIVE SUMMARY ....................................................................................................................... 6

1 EGNOS SIS Availability .................................................................................................................. 7

2 Open Service (OS) ............................................................................................................................ 8

2.1 Open Service Horizontal and Vertical Accuracy .............................................................................. 8

2.2 EGNOS Open Service Availability ................................................................................................... 10

3 Safety-of-Life Service (SoL) .......................................................................................................... 11

3.1 EGNOS Non Precision Approach (NPA) ......................................................................................... 11 3.1.1 EGNOS NPA availability ............................................................................................................................... 11 3.1.2 EGNOS NPA Continuity ................................................................................................................................ 12 3.1.3 EGNOS NPA Integrity Events ........................................................................................................................ 13 3.1.4 EGNOS NPA Accuracy .................................................................................................................................. 14

3.2 EGNOS Approach with Vertical guidance (APV-I) ....................................................................... 16 3.2.1 EGNOS APV-I Availability ........................................................................................................................... 16 3.2.2 EGNOS APV-I Continuity Risk ..................................................................................................................... 17 3.2.3 EGNOS APV-I Integrity ................................................................................................................................. 18 3.2.4 EGNOS APV-I Accuracy ............................................................................................................................... 20

4 APV-I Performances at Airports ................................................................................................... 22

5 EGNOS Data Access Service (EDAS) ........................................................................................... 26

Appendix A Receiver Monitoring network ........................................................................................ 28

Appendix B Reference Documents .................................................................................................... 30

Appendix C List of acronyms ............................................................................................................. 31



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LIST OF FIGURES Figure 1 – EGNOS SIS & PRN Availability for April 2014. ................................................................... 7

Figure 2 – Trending of EGNOS SIS Availability per GEO. ..................................................................... 7

Figure 3 – EGNOS Open Service HNSE Histogram and Cumulative Probability ................................... 9

Figure 4 – EGNOS Open Service VNSE Histogram and Cumulative Probability ................................... 9

Figure 5 – EGNOS Open Service Availability at reference stations ...................................................... 10

Figure 6 – EGNOS NPA availability ...................................................................................................... 11

Figure 7 – EGNOS NPA Continuity over the last 6 months .................................................................. 12

Figure 8 – EGNOS NPA Horizontal Safety Index of the month ............................................................ 13

Figure 9 – EGNOS NPA HNSE Histogram............................................................................................ 15

Figure 10 – EGNOS NPA HNSE Cumulative Probability ..................................................................... 15

Figure 11 – EGNOS APV-I Availability ................................................................................................ 16

Figure 12 – EGNOS APV-I Continuity .................................................................................................. 17

Figure 13 – EGNOS APV-I Horizontal Safety Index of the month ....................................................... 18

Figure 14 – EGNOS APV-I Vertical Safety Index of the month ............................................................ 19

Figure 15 – EGNOS APV-I HNSE Histogram and Cumulative Probability .......................................... 21

Figure 16 – EGNOS APV-I VNSE Histogram and Cumulative Probability .......................................... 21

Figure 17 – EGNOS RIMS sites used in this report ............................................................................... 28

LIST OF TABLES Table 1 – EGNOS SIS Availability (%) on EGNOS GEO satellites. ....................................................... 7

Table 2 – EGNOS Open Service accuracy (95%) .................................................................................... 8

Table 3 – EGNOS NPA Horizontal Accuracy (95%) and percentage of time in NPA mode ................ 14

Table 4 – EGNOS APV-I Accuracy (95%) and percentage of time in APV-I mode at reference stations

......................................................................................................................................................... 20

Table 5 – Monthly APV-I Availability at airports with published procedures using EGNOS ............... 25

Table 6 –Performances of EDAS Services ............................................................................................. 26

Table 7 - List of sites where performances are reported ......................................................................... 29



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EXECUTIVE SUMMARY

This report presents an overview of the EGNOS services performance during April 2014. The report contains global

results of the reported period, including maps and tables with the performances observed at different locations in

Europe using GEO-combined values for PRN120-PRN126. A list of the stations analyzed in this report, including

their location can be found in Appendix A. Additional and more detailed information about EGNOS performances

can be found at the EGNOS User Support website (http://egnos-user-support.essp-sas.eu/).

The Service Notice #10, explaining the status and the reasons for the recent degradations in the Safety of Life and

Open Service performance, was updated in April at the ESSP website (http://www.essp-sas.eu/service_notices) with

title “Updated status of EGNOS performances - North and South West of Service Area” [RD-4].

Safety of Life Service (SoL)

The results corresponding to APV-I Availability and Continuity for this month present degraded areas for APV-I

Availability and Continuity (mainly in the Southwest), but an improvement is observed with respect to the results

obtained in February and March 2014. The percentage of SoL SDD service area [RD-2] covered by APV-I

Availability and Continuity (5x10-4

/15s) performance maps is 92.24% and 92.02 % respectively.

The APV-I performances at airports with EGNOS-based procedures have been good and all airports presented an

availability higher than 99% and a continuity lower than 5E-4 in most of them.

The APV-I Horizontal and Vertical Safety Indexes were below 0.35 for all the analyzed sites, what represents a good

integrity margin.

NPA Availability (99%) was compliant in the whole service volume (limited by the boundaries defined by MT27).

Open Service

The monitored stations presented an Open Service Availability higher than 99% for this month, with the exception of

two stations located at Southwest of the Service Area (Madeira and Lisbon) and one station located in the

northeastern area (Kirkenes). The horizontal accuracy results for all the stations remained below 2 meters (95%) and

the vertical accuracy below 2.7 meters (95%), which represents a good level of accuracy.

EDAS Service

In terms of availability, the observed performances for the EDAS services have fulfilled the targets [RD-3].

Regarding the EDAS Services latency, the observed delays (for the real-time services) have been well below the

committed performance.

http://egnos-user-support.essp-sas.eu/

http://www.essp-sas.eu/service_notices



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1 EGNOS SIS AVAILABILITY

In this document, EGNOS SIS Availability is defined as the percentage of time in the month during which at least one geostationary satellite broadcasts EGNOS messages.

In addition to the SIS availability for PRN120 and PRN126, the following values are also reported:

percentage of time in the month during which at least one geostationary satellite broadcasts EGNOS

messages (PRN120 or PRN126);

percentage of time in the month during which both geostationary satellites broadcast EGNOS messages

(PRN120 and PRN126).

EGNOS SIS monitoring for April 2014, reports the following reception percentage of an SBAS message:

PRN120 Availability: 99.93%

PRN126 Availability: 99.93%

SIS - PRN120 or PRN126: 100%

SIS - PRN120 and PRN126: 99.86%

The following figure presents the availability of the signal in both EGNOS GEO satellites (PRN120 and PRN126).

Red lines correspond to unavailability periods:

Figure 1 – EGNOS SIS & PRN Availability for April 2014.

Figure 2 – Trending of EGNOS SIS Availability per GEO.

Availability (%) 2013-11 2013-12 2014-01 2014-02 2014-03 2014-04

PRN120 99.85 99.99 99.83 99.97 99.99 99.93

PRN126 99.83 99.99 99.82 100 99.94 99.93

At least one EGNOS GEO satellite 100 100 100 100 100 100

Table 1 – EGNOS SIS Availability (%) on EGNOS GEO satellites.



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2 OPEN SERVICE (OS)

2.1 Open Service Horizontal and Vertical Accuracy

Accuracy is a measure of the position error, which is the difference between the estimated navigation position and the

actual position.

EGNOS OS Horizontal (resp. Vertical) Accuracy is reported as the 95th

percentile of the Horizontal (resp. Vertical) Navigation System Error – HNSE (resp. VNSE) over the month, at the monitored sites when applying EGNOS

messages.

The next table provides the values of accuracy (95%) in meters measured for this month. See Appendix A for further

details of the stations where OS Accuracy are reported.

Station HNSE 95%

(meters)

VNSE 95%

(meters)

Aalborg 0.8 1.6

Berlin 0.9 1.4

Catania 1.2 1.6

Cork 1.1 1.5

Warsaw 1.0 1.6

Djerba 1.6 2.0

Egilsstadir 1.1 2.3

Glasgow 0.9 1.5

Lisbon 1.7 2.0

Swanwick 1.3 1.7

Madeira 2.0 2.3

Málaga 1.5 1.5

Kirkenes 1.3 2.5

Palma de Mallorca 1.2 1.5

Reykjavik 1.3 2.5

Roma 1.0 1.4

Lappeenranta 1.0 2.0

S. de Compostela 1.4 1.3

Sofia 1.4 2.3

Gävle 0.8 1.9

Toulouse 1.1 1.3

Trondheim 0.9 2.0

Tromsoe 1.3 2.6

Zürich 1.0 1.3

Jan Mayen 1.5 2.7

Athens 1.2 1.7

Table 2 – EGNOS Open Service accuracy (95%)



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The next figures show the histogram and cumulative distribution function of HNSE (Horizontal Navigation System

Error) and VNSE (Vertical Navigation System Error), which are computed at the previous stations for each second

over the current month, across the range of values.

Figure 3 – EGNOS Open Service HNSE Histogram and Cumulative Probability

Figure 4 – EGNOS Open Service VNSE Histogram and Cumulative Probability



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2.2 EGNOS Open Service Availability

EGNOS OS Availability performance is defined in the present document as the percentage of time when the instantaneous HNSE is lower than 3 meters and the instantaneous VNSE is lower than 4 meters over the total number

of samples with valid PA navigation solution

The following figures present the Open Service Availability measured in the monitoring stations for the reported

month (RIMS sites with OS Availability lower than 99% are shown in red). See Appendix A for further details of the

stations where OS Accuracy are reported.

Figure 5 – EGNOS Open Service Availability at reference stations



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3 SAFETY-OF-LIFE SERVICE (SOL)

3.1 EGNOS Non Precision Approach (NPA)

3.1.1 EGNOS NPA availability

EGNOS NPA Availability is defined as the percentage of samples in which the Horizontal Protection Level is below

Alert Limit for NPA (HPL below 556m) over the total period.

The following figure presents EGNOS NPA Availability over the current month. It must be noted that NPA

Availability considering RAIM is not taken into account in this report.

Figure 6 – EGNOS NPA availability



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3.1.2 EGNOS NPA Continuity

EGNOS NPA Continuity is reported as the result of dividing the total number of single continuity events using a time-sliding window of 1 hour by the number samples with valid and available NPA navigation solution. A single

continuity event occurs if the system is available at the start of the operation and in at least one second inside the

following time-sliding window of 1 hour the system becomes not available.

The following picture presents the EGNOS NPA Continuity Risk measured for the last 6 months (in order to observe

the minimum NPA Continuity performance committed in the SoL SDD (2.5×10-4

/hour), at least 6 months of data

needs to be evaluated due to the discrete nature of discontinuity events). It must be noted that NPA continuity is

computed in this report using only the EGNOS NPA solution and not considering the GPS RAIM solution when the

EGNOS one is not available.

Figure 7 – EGNOS NPA Continuity over the last 6 months



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3.1.3 EGNOS NPA Integrity Events

EGNOS NPA Integrity Event is defined as an event when the Navigation System Error is greater or equal to the

corresponding Protection Level for NPA.

No integrity event was detected.

Safety index is defined as the relation between Navigation System Error and Protection Level (assuming NPA algorithms to compute xNSE and xPL) for each second. Case of ratio xNSE/xPL is over 1, it indicates that a

Misleading Information situation has occurred.

The next histograms show the distribution of HSI (Horizontal Safety Index), which is computed at the different

EGNOS stations for each second over the current month, across the range of values. These histograms take into

account the epochs in which the NPA service is available (Protection Level < NPA Alarm Limit).

Figure 8 – EGNOS NPA Horizontal Safety Index of the month



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3.1.4 EGNOS NPA Accuracy

EGNOS NPA Accuracy is reported as the 95th

percentile of the Horizontal Navigation System Error (HNSE) over

the month, at the monitored sites when the NPA service is available (HPL below 556 m).

This table shows the NPA Accuracy values in meters. See Appendix A for further details of the stations where NPA

accuracy are reported.

Station HNSE 95%

(meters)

% of samples in

NPA mode

Aalborg 0.8 100.00%

Azores 3.0 100.00%

Berlin 0.9 100.00%

Canary Islands 6.7 99.99%

Catania 1.5 100.00%

Cork 1.1 100.00%

Warsaw 1.0 100.00%

Djerba 5.2 100.00%

Egilsstadir 1.1 100.00%

Glasgow 0.9 100.00%

Golbasi 1.6 100.00%

Lisbon 1.7 100.00%

Swanwick 1.3 100.00%

Madeira 2.4 100.00%

Málaga 1.8 100.00%

Kirkenes 1.3 100.00%

Palma de Mallorca 1.2 100.00%

Reykjavik 1.3 100.00%

Roma 1.1 100.00%

Lappeenranta 1.0 100.00%

S. de Compostela 1.4 100.00%

La Palma 5.4 99.99%

Sofia 1.4 100.00%

Gävle 0.8 100.00%

Toulouse 1.1 100.00%

Trondheim 0.9 100.00%

Tromsoe 1.3 100.00%

Zürich 1.0 100.00%

Abu Simbel 10.1 100.00%

Agadir 7.9 100.00%

Athens 1.2 100.00%

Table 3 – EGNOS NPA Horizontal Accuracy (95%) and percentage of time in NPA mode



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The next figures show the histogram and cumulative probability function of HNSE (Horizontal Navigation System

Error), which are computed at RIMS sites for each second over the current month, across the range of values.

Figure 9 – EGNOS NPA HNSE Histogram

Figure 10 – EGNOS NPA HNSE Cumulative Probability



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3.2 EGNOS Approach with Vertical guidance (APV-I)

3.2.1 EGNOS APV-I Availability

EGNOS APV-I Availability is defined as the percentage of epochs in a month in which the Protection Level are

below Alert Limits for this APV-I service (HPL<40m and VPL<50m) over the total period.

The following picture presents the EGNOS APV-I Availability over the current month using GEO-combined maps

for PRN120 and PRN126.

Figure 11 – EGNOS APV-I Availability



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3.2.2 EGNOS APV-I Continuity Risk

EGNOS APV-I Continuity Risk is defined as the result of dividing the total number of single continuity events using a time-sliding window of 15 seconds by the number of samples with valid and available APV-I navigation solution. A

single continuity event occurs if the system is available at the start of the operation and in at least one of the

following 15 seconds the system becomes not available.

The following picture presents the EGNOS APV-I Continuity over the current month using GEO-combined maps for

PRN120 and PRN126.

Figure 12 – EGNOS APV-I Continuity



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3.2.3 EGNOS APV-I Integrity

EGNOS APV-I Integrity Event is defined as an event when the Navigation System Error is greater or equal to the

corresponding Protection Level for APV-I.

No integrity event was detected.

Safety Index is defined as the relation between Navigation System Error versus Protection Level (assuming PA algorithms to compute xNSE and xPL) for each second. In case of ratio xPE/xPL is over 1; it indicates that a

Misleading Information situation has occurred.

The next figures provide the histogram for HSI (Horizontal Safety Index) and VSI (Vertical Safety Index) for each

second when accumulating measurements from the different EGNOS stations over the current month. These

histograms have considered that Protection Level is below APV-I Alarm Limit.

Figure 13 – EGNOS APV-I Horizontal Safety Index of the month



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Figure 14 – EGNOS APV-I Vertical Safety Index of the month



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3.2.4 EGNOS APV-I Accuracy

EGNOS APV-I Accuracy is reported as the 95th

percentile of the Horizontal and Vertical Navigation System Error

over the month, at the monitored sites when the APV-I service is available (HPL<40m and VPL<50m).

The following table shows the monthly APV-I Accuracy values in meters per operational GEO satellite. See

Appendix A for further details of the stations where APV-I Accuracy are reported.

Station HNSE 95%

(meters)

VNSE 95%

(meters)

% of samples with

APV-I service available

Aalborg 0.8 1.6 100.00%

Berlin 0.9 1.4 99.99%

Catania 1.2 1.6 99.08%

Cork 1.1 1.5 100.00%

Warsaw 1.0 1.6 100.00%

Djerba 1.4 1.8 90.19%

Egilsstadir 1.1 2.2 99.54%

Glasgow 0.9 1.5 100.00%

Lisbon 1.7 1.9 98.68%

Swanwick 1.3 1.7 100.00%

Madeira 1.7 1.7 91.69%

Málaga 1.4 1.4 97.65%

Kirkenes 1.3 2.4 98.79%

Palma de Mallorca 1.2 1.5 99.67%

Reykjavik 1.2 2.3 97.10%

Roma 1.0 1.4 99.82%

Lappeenranta 1.0 2.0 99.98%

S. de Compostela 1.4 1.2 99.31%

Sofia 1.4 2.3 99.92%

Gävle 0.8 1.9 100.00%

Toulouse 1.1 1.3 99.94%

Trondheim 0.9 2.0 99.97%

Tromsoe 1.3 2.6 99.85%

Zürich 1.0 1.3 99.97%

Athens 1.1 1.7 99.62%

Table 4 – EGNOS APV-I Accuracy (95%) and percentage of time in APV-I mode at reference stations



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The next figures show the histogram and cumulative distribution function of HNSE (Horizontal Navigation System

Error) and VNSE (Vertical Navigation System Error), which are computed at RIMS sites for each second over the

current month, across the range of values.

Figure 15 – EGNOS APV-I HNSE Histogram and Cumulative Probability

Figure 16 – EGNOS APV-I VNSE Histogram and Cumulative Probability



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4 APV-I PERFORMANCES AT AIRPORTS

During this month, new procedures using EGNOS have been published in:

France: Angouleme Brie Champniers and Reims Prunay -since 3rd

April-.

Poland: Katowice -since 3rd

April-.

Switzerland: Emmen -since 3rd

April-.

This table reports APV-I Availability and Continuity at airports with published procedures using EGNOS:

Airports Country Status APV-I

Availability

APV-I

Continuity

Risk

Outages1

EDAB / Bautzen Germany Operational 100.00% 0.00E+00 0

EDBH / Barth Germany Operational 99.98% 1.16E-05 2

EDBM / Magdeburg/City Germany Operational 99.99% 5.79E-06 1

EDDB / Berlin/Schönefeld Germany Operational 99.99% 5.79E-06 1

EDDC / Dresden Germany Operational 99.99% 5.79E-06 1

EDDE / Erfurt-Weimar Germany Operational 99.99% 5.79E-06 1

EDDF / Frankfurt Main Germany Operational 99.99% 2.32E-05 13

EDDG / Münster/Osnabrück Germany Operational 100.00% 0.00E+00 0

EDDH / Hamburg Germany Operational 99.97% 5.79E-06 1

EDDK / Köln/Bonn Germany Operational 100.00% 0.00E+00 0

EDDL / Düsseldorf Germany Operational 100.00% 0.00E+00 0

EDDM / München Germany Operational 99.99% 5.79E-06 1

EDDN / Nürnberg Germany Operational 99.99% 5.79E-06 1

EDDP / Leipzig/Halle Germany Operational 99.99% 5.79E-06 1

EDDS / Stuttgart Germany Operational 99.98% 2.32E-05 4

EDDT / Berlin-Tegel Germany Operational 99.99% 5.79E-06 1

EDDV / Hannover Germany Operational 100.00% 0.00E+00 0

EDDW / Bremen Germany Operational 100.00% 0.00E+00 0

EDFQ / Allendorf/Eder Germany Operational 99.99% 5.79E-06 1

EDHI / Hamburg-Finkenwerder Germany Operational 99.98% 5.79E-06 1

EDJA / Memmingen Germany Operational 99.98% 1.85E-05 4

EDLP / Paderborn/Lippstadt Germany Operational 100.00% 0.00E+00 0

EDLW / Dortmund Germany Operational 100.00% 0.00E+00 0

EDMA / Augsburg Germany Operational 99.98% 1.16E-05 2

EDME / Eggenfelden Germany Operational 100.00% 0.00E+00 0

EDMO / Oberpfaffenhofen Germany Operational 99.99% 5.79E-06 1

EDMS / Straubing Germany Operational 100.00% 0.00E+00 0

1 Outages refer to events when the APV-I service changes its status from Available to Unavailable.



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Availability

APV-I

Continuity

Risk

Outages1

EDNY / Friedrichshafen Germany Operational 99.98% 2.32E-05 4

EDPR / Donauwörtht Germany Operational 99.98% 1.16E-05 2

EDQC / Coburg-Brandensteinsebene Germany Operational 99.99% 5.79E-06 1

EDQD / Bayreuth Germany Operational 99.99% 5.79E-06 1

EDQG / Giebelstadt Germany Operational 99.99% 1.27E-05 5

EDTD / Donaueschingen-Villingen Germany Operational 99.97% 2.89E-05 5

EDTM / Mengen-Hohentengen Germany Operational 99.98% 2.32E-05 4

EDTY / Schwäbisch-Hall Germany Operational 99.99% 1.62E-05 11

EDVE / Braunschweig-Wolfsburg Germany Operational 99.99% 5.79E-06 1

EDVK / Kassel-Calden Germany Operational 99.99% 5.79E-06 1

EDWB / Bremerhaven Germany Operational 100.00% 0.00E+00 0

EDWE / Emden Germany Operational 100.00% 0.00E+00 0

EDWI / Wilhelmshaven JadeWeser Germany Operational 100.00% 0.00E+00 0

EFJO / Joensuu Finland Operational 99.94% 1.08E-04 47

EGJA / Alderney Guernsey Operational 99.99% 1.74E-05 7

ENRS / Rost Norway Operational 99.96% 5.06E-05 29

EPKT / Katowice2 Poland Operational 100.00% 0.00E+00 0

LEXJ / Santander Spain Operational 99.77% 2.26E-04 95

LFAC / Calais France Operational 99.99% 5.79E-06 1

LFAQ / Albert Bray France Operational 99.95% 4.94E-05 23

LFAV / Valenciennes Denain France Operational 99.97% 4.98E-05 23

LFAY / Amiens Glisy France Operational 99.95% 5.02E-05 23

LFBA / Agen La Garenne France Operational 99.95% 4.63E-05 8

LFBD / Bourdeaux Mérignac France Operational 99.95% 4.40E-05 10

LFBE / Bergerac France Operational 99.96% 4.05E-05 7

LFBH / La Rochelle France Operational 99.96% 4.63E-05 16

LFBK / Montluçon Gueret France Operational 99.96% 4.09E-05 8

LFBL / Limoges France Operational 99.97% 3.47E-05 6

LFBO / Toulouse Blagnac France Operational 99.95% 4.63E-05 8

LFBP / Pau France Operational 99.90% 9.73E-05 34

LFBU / Angouleme Brie

Champniers3 France Operational 99.96% 3.72E-05 6

LFBZ / Biarritz France Operational 99.92% 7.88E-05 20

LFCK / Castres Mazamet France Operational 99.93% 5.56E-05 18

2 Procedure at this airport was published on 3rd April.




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Availability

APV-I

Continuity

Risk

Outages1

LFCR / Rodez-Marcillac France Operational 99.95% 5.21E-05 16

LFGA / Colmar Housse France Operational 99.98% 2.89E-05 5

LFGJ / Dole Tavaux France Operational 99.97% 2.89E-05 5

LFJL / Metz Nancy Lorraine France Operational 99.95% 4.63E-05 14

LFLC / Clermont Ferrand France Operational 99.96% 3.47E-05 6

LFLL / Lyon St Exupery France Operational 99.96% 2.89E-05 5

LFLP / Annecy Meythet France Operational 99.97% 3.47E-05 6

LFLS / Grenoble Isere France Operational 99.96% 4.13E-05 8

LFLU / Valence France Operational 99.96% 4.13E-05 8

LFLX / Chateauroux Deols France Operational 99.97% 2.89E-05 5

LFMK / Carcassonne Salvaza France Operational 99.93% 5.21E-05 9

LFMU / Beziers Vias France Operational 99.90% 4.98E-05 13

LFNB / Mende France Operational 99.95% 5.13E-05 19

LFOB / Beauvais France Operational 99.95% 3.47E-05 6

LFOZ / Orleans France Operational 99.97% 3.24E-05 9

LFPB / Le Bourget France Operational 99.97% 1.74E-05 3

LFPO / Paris Orly France Operational 99.99% 1.16E-05 2

LFQA / Reims Prunay4 France Operational 99.93% 5.87E-05 18

LFQG / Nevers Fouchambault France Operational 99.97% 3.47E-05 6

LFQT / Merville France Operational 99.99% 5.79E-06 1

LFRB / Brest Bretagne France Operational 99.98% 2.32E-05 4

LFRD / Dinard France Operational 99.98% 1.74E-05 3

LFRI / La Roche Sur Yon France Operational 99.97% 5.36E-05 18

LFRM / Le Mans France Operational 99.97% 2.89E-05 5

LFRN / Rennes France Operational 99.97% 3.20E-05 9

LFRQ / Quimper France Operational 99.97% 2.32E-05 4

LFRS / Nantes France Operational 99.97% 3.47E-05 6

LFRV / Vannes-Meucon France Operational 99.98% 3.09E-05 13

LFSG / Epinal Mirecourt France Operational 99.96% 3.47E-05 6

LFSL / Brive Souillac France Operational 99.96% 3.47E-05 6

LFSN / Nancy Essey France Operational 99.95% 4.05E-05 13

LFTW / Nimes Garons France Operational 99.94% 3.71E-05 8

LIML / Milano/Linate Italy Operational 99.97% 3.32E-05 10

LIPZ / Venezia/Tessera Italy Operational 99.94% 1.74E-05 3




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Availability

APV-I

Continuity

Risk

Outages1

LIRA / Roma/Ciampino Italy Operational 99.83% 1.15E-04 41

LIRF / Roma/Fiumicino Italy Operational 99.73% 1.45E-04 47

LKMT / Ostrava Czech Rep. Operational 100.00% 0.00E+00 0

LKPR / Praha Czech Rep. Operational 100.00% 0.00E+00 0

LKTB / Brno Czech Rep. Operational 100.00% 0.00E+00 0

LOWG / Graz Austria Operational 100.00% 0.00E+00 0

LOWL / Linz Austria Operational 99.99% 1.00E-05 10

LSGC / Les Eplatures Switzerland Operational 99.97% 3.09E-05 8

LSME / Emmen5 Switzerland Operational 99.97% 3.10E-05 5

LSZB / Berne-Belp Switzerland Operational 99.96% 3.47E-05 6

LSZG / Grenchen Switzerland Operational 99.97% 2.89E-05 5

LSZR / St.Gallen-Altenrhein Switzerland Operational 99.97% 2.89E-05 5

Table 5 – Monthly APV-I Availability at airports with published procedures using EGNOS




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5 EGNOS DATA ACCESS SERVICE (EDAS)

EDAS (EGNOS Data Access Service) offers ground-based access to EGNOS data [RD-3]. It is the single point of

access for the data collected and generated by the EGNOS infrastructure composed of ground stations distributed

over Europe and North Africa.

The main data provided by EDAS are:

Raw GPS, GLONASS and EGNOS GEO observations and navigation data collected by the entire network of

Ranging and Integrity Monitoring Stations (RIMS) and Navigation Land Earth Stations (NLES).

EGNOS augmentation messages, as normally received by users via the EGNOS Geostationary satellites.

These data are provided through different EDAS Services in different formats in order to meet different set of

applications and needs. For a description of the EDAS services, please refer to the EDAS SDD [RD-3].

Additional information on the EDAS services is available at the EDAS specific section of the EGNOS User Support

website (http://egnos-user-support.essp-sas.eu/).

Below, the performances of EDAS Services (please refer to the EDAS SDD [RD-3] for a definition of the EDAS

availability and latency) corresponding to April 2014 are presented:

Availability: Percentage of time during which the service provides the data according to the specifications.

Latency: Average of the percentile 95% latencies monitored for every 5 minutes period within the month.

EDAS Service Availability Latency (ms)

Service Level 0 99.99% 525.53



Ntrip Service 99.96% 336.83

SISNeT Service

GEO Operational 1 99.29% 249.37

GEO Operational 2 99.25% 241.17

Data Filtering

Service

RIMS A 99.93% 569.13

Central 99.93% 477.62

MEDA 99.92% 530.63

North-East 99.92% 249.53

North-West 99.94% 527.8

South-West 99.92% 575.1

FTP Service 99.95% N/A

Table 6 –Performances of EDAS Services

https://egnos-edas.gsa.europa.eu/edashd/php/index.php?action=edasTechnical#link2




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FOR MORE INFORMATION

To get more information about EGNOS performances, please visit the

EGNOS user Support web site at


or

contact to the EGNOS helpdesk at

[email protected]

+34 911 236 555

TO PROVIDE YOUR FEEDBACK

You can provide us with your feedback on the EGNOS SoL use and

service provision by filling the following questionnaire.

A button inside allows returning the questionnaire automatically to

ESSP.

DISCLAIMER

All data and information (hereinafter the “Data”) provided within this document are for informational purposes

only. This document does not provide the ESSP interpretation of the Data.

The European Union, as owner of EGNOS, and ESSP SAS, as EGNOS services provider, disclaim all warranties

of any kind (whether express or implied) to any party and/or for any use of the Data including, but not limited to,

their accuracy, integrity, reliability and fitness for a particular purpose or user requirements.

By using the Data, the user agrees that the European Union and ESSP SAS shall not be held liable for any direct

or indirect or consequential loss or damage (such as loss of profits, business, contracts, anticipated savings,

goodwill or revenue) resulting from the use, misuse or inability to use the Data.

Text and pictures that are part of the Data may be protected by property rights. Any use shall require the prior

written agreement of ESSP SAS.

.


mailto:[email protected]

http://www.essp-sas.eu/download/printed_documents/essp_com_r002_01_00_egnos_sol_service_questionnaire_distributed.pdf



Page 28 of 32

APPENDIX A RECEIVER MONITORING NETWORK

The receiver network used to report EGNOS performances in this document is based on the EGNOS monitoring

stations (RIMS).

Next map shows the location of this receiver monitoring network, used in this report to present the EGNOS

performances:

Figure 17 – EGNOS RIMS sites used in this report

The stations in green colour are used to report APV-I and Open Service results. Performances corresponding to NPA

include all the stations in green and red colour. Jan Mayen RIMS site (JME) (blue colour) is used only to report Open

Service results.

Next table shows the name and location of each one:



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Id Location name Country Id Location name Country

ABS RIMS Abu Simbel Egypt LAP RIMS Lappeenranta Finland

ACR RIMS Azores Portugal LPI RIMS La Palma Spain

ALB RIMS Aalborg Denmark LSB RIMS Lisbon Portugal

AGA RIMS Agadir Morocco MAD RIMS Madeira Portugal

ALY RIMS Alexandria Egypt MLG RIMS Málaga Spain

ATH RIMS Athens Greece PDM RIMS Palma de Mallorca Spain

BRN RIMS Berlin Germany RKK RIMS Reykjavik Iceland

CNR RIMS Canary Isl. Spain ROM RIMS Roma Italy

CRK RIMS Cork Ireland SDC RIMS S. de Compostela Spain

CTN RIMS Catania Italy SOF RIMS Sofia Bulgaria

DJA RIMS Djerba Tunisia SWA RIMS Swanwick United Kingdom

EGI RIMS Egilsstadir Iceland TLS RIMS Toulouse France

GLG RIMS Glasgow United Kingdom TRD RIMS Trondheim Norway

GOL RIMS Golbasi Turkey TRO RIMS Tromsoe Norway

GVL RIMS Gävle Sweden WRS RIMS Warsaw Poland

JME RIMS Jan Mayen Norway ZUR RIMS Zürich Switzerland

KIR RIMS Kirkenes Norway

Table 7 - List of sites where performances are reported



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APPENDIX B REFERENCE DOCUMENTS

[RD-1] Open Service Definition Document, EGN-SDD-OS; v.02-00 (available in http://www.essp-

sas.eu/service_definition_documents)

[RD-2] Safety Of Life Definition Document, EGN-SDD-SoL, v.02-00 (available in http://www.essp-

sas.eu/service_definition_documents)

[RD-3] EGNOS Data Access Service (EDAS) Service Definition Document, EGN-SDD EDAS; v.02-00

(available in http://www.essp-sas.eu/service_definition_documents)

[RD-4] Service Notice #10, Updated status of EGNOS performances- North and South West of Service

Area, v.01-01 (available in http://www.essp-sas.eu/service_notices )

http://www.essp-sas.eu/service_definition_documents





http://www.essp-sas.eu/service_notices



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APPENDIX C LIST OF ACRONYMS

Acronym Definition APV Approach with Vertical Guidance

ASN Abstract Syntax Notation

ECAC European Civil Aviation Conference

EDAS EGNOS Data Access Service

EGNOS European Geostationary Navigation Overlay Service

ESSP European Satellite Services Provider

FTP File Transfer Protocol

GEO Geostationary Satellite

GNSS Global Navigation Satellite System

GPS Global Positioning System

HAL Horizontal Alarm Limit

HNSE Horizontal Navigation System Error

HPE Horizontal Position Error

HPL Horizontal Protection Level

HSI Horizontal Safety Index

MI Misleading Information

MT27 Message Type 27

NA Not Applicable/ Not Available

NLES Navigation Land Earth Station

NPA Non-Precision Approach

NTRIP Networked Transport of RTCM via Internet Protocol

OP Operation

OPS Operations

OS Open Service

PA Precision Approach

PL Protection Level

PRN Pseudo-Random Number

RAIM Receiver Autonomous Integrity Monitoring

RD Reference Document

RIMS Ranging and Integrity Monitoring Station

RTCM Radio Technical Commission for Maritime Services

SBAS Satellite-Based Augmentation System

SDD Service Definition Document

SIS Signal-In-Space

SL0 Service Level 0

SL1 Service Level 1

SL2 Service Level 2

SoL Safety of Life

VAL Vertical Alarm Limit

VNSE Vertical Navigation System Error

VPE Vertical Position Error

VPL Vertical Protection Level

VSI Vertical Safety Index



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END OF THE DOCUMENT