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The EGNOS User Interface Document Explained
Javier Ventura-Traveset – European Space Agency, EGNOS Project OfficePatricia Yague -- European Space Agency, EGNOS Project OfficeCristoforo Montefusco – ENAV, Italy
2nd EGNOS Receiver Workshop 30th Sept 2005, ESTEC, Noordwijk, The Netherlands
Reasons for the EGNOS UID
Structure and contents of the document
Schedule
Disclaimer
Conclusions
Presentation overview
Provide a high level information document for users, application developers, receiver manufacturers, institutions interested in EGNOS and satellite navigation
explain how to access the EGNOS SIS, how the system works, what is delivered to users and how the system will evolve.
It is a living document issued by ESA that will accompany EGNOS through its life, providing official information on the system like: SIS and architecture description, performance, compliance with standards and planned evolutions.
Reasons for the EGNOS UID
DisclaimerIntroductionScope and motivationThe EGNOS programmeSBAS principlesEGNOS system architectureEGNOS functional architectureEGNOS evolutionEGNOS SIS and dataServices delivered to usersEGNOS performance Appendices
Structure of the document
User InterfaceDocument
Introduction (scope, content, motivations, acronyms, Applicable Documents, Reference Documents)
Overview on EGNOS and European satellite navigation strategy
SBAS principles (general concepts, augmentation provided by SBAS systems, accuracy and integrity, corrections and variance estimations, error bounding)
More details on the UID content 1/9
Description of all segments plus the support facilities
More details on the UID content 2/9
EGNOS functional architecture work logic, the data flow, the functional loop and the main processing stages
More details on the UID content 3/9
Satellites: Geostationary, GPS & GLONASS
Users34 RIMS4 MCC
7 NLES
EGNOS operations Decision chainInformation on MCC and CCF operations & maintenance GEO, NLES & RIMS operations & maintenanceSupport Facilities operations
More details on the UID content 4/9
Trom so(Norway)
Q uebec(Canada)
128k 64k
Toulouse/Aussaguel(France)
64kTorrejon M CC
(Spain)
CanaryIs lands
Oslo(Norway)
Baynard(London)
Seville(Spain)
Madrid(Spain)
512K
512K
Ciam pino M CC(Italy)
64k
Santiago deCom postella(Spain)
64k
G lasgow (UK)
64k
G lasgow
Frankfurt(G ermany)
Langen M CC(Germ any)
512K
Cisco 1600Concert hub s ite
PVC 96k/8k CIRPVC 48k/8k CIR
Singapore128k
Rome
512K64k
Fucino(Italy)
CFRSNetwork
Djerba(Tunis ia)
Kourou (French Guiana)V ia leased line to Aussagel NLES
Reykjavik(Iceland)
Sofia(Bulgaria)
Hartesbeeshoek(South A frica)
72007200
VSAT Hub B
VSAT Hub A
7000 Cisco 7200
Stockholm
Faroe Islands(Denm ark)
Konya (Turkey
M ersa Matrouh(Egypt)
M ourm ansk(Russia)
S t Petersburg(Russia)
Alberg(Denm ark)
Copenhagen
Cracovie(Poland)
64k
64k
64k
64k
Lisbon(Portugal)
Madere(Portugal)
64k
Tel Aviv(Israel)
Trondheim(Norway)
64k
Stavanger(Norway)
64k
Gatw ick M CC(UK)
Lisbon(Portugal)
W arsaw(Poland)
Tel Aviv(Israel)
64kAzores(Portugal)
QuebecDublin (Eire)
64k Cork (Eire)
64k
128k
Johannesburg
Toulouse(France) 64k
64k
Berlin(Germ any)
Berlin(Germ any)
London (UK)
London
Stockholm(Sweden)
M oscow
64k
64k
64k
M elilla(Spain/N. A frica)
Catania (Sicily)
Naples64k
Barcelona(Spain)
Palm a deMallorca(Spain)
64k
Zurich
Zurich(Switzerrland)
64k
Paris(France)
SingaporeParis
M anagement PVC64k/64k CIR
72007200
512K512K
Amsterdam
Am sterdam GCSC(Netherlands)
256K
512K512K
Paris
Paris OSC(France)
256K
EGNOS performance (brief recall of system requirements, how performance is measured at CPF and User level, accuracy and integrity performance charts and explanations)
More details on the UID content 5/9
Accuracy (H) 95%
Accuracy (V) 95%
Integrity Time to alert
Alarm Limit (vertical)
Alarm Limit (horizontal)
Continuity Avail-ability
En-route 2.0 NM N/A 1-10-7/h 5 min. N/A 4 NM 1-10-4/h to 1-10-8/h
0.99 to 0.99999
En-route, Terminal
0.4 NM N/A 1-10-7/h 15 s N/A 1 NM 1-10-4/h to 1-10-8/h
0.999 to 0.99999
Non-precision approach, Departure
220 m N/A 1-10-7/h 10 s
N/A 0.3 NM 1-10-4/h to 1-10-8/h
0.99 to 0.99999
APV-1 16 m 20 m 1-2x10-7
per approach
10 s
50 m 40 m 1-8x10-6 in any 15 s
0.99 to 0.99999
APV –2 and CAT I Precision approach
16 m 7.7 to 4m
1-2x10-7 per approach
6 s
20 m (APV-II) 15-10m (Cat-I)
40 m 1-8x10-6 in any 15 s
0.99 to 0.99999
Signal in Space(description of messages, compliance with SBAS standards, interoperability with other SBAS)
More details on the UID content 6/9
F S S S S F F S S S S F F
C ycle 2 C yc le 1
FS
E G N O SM C C
T o U se rs
G P S
M e s sa g eS c h ed u le
FS
F a s t C o rre c tio n s
S low C o rre c tio ns
S S S
P o s itio nIn te g rity
EGNOSWAAS MSAS
MSG 0 Don't use this SBAS signal for anything (for SBAS testing)MSG 1 PRN Mask assignments, set up to 51 of 210 bitsMSG 2 to 5 Fast correctionsMSG 6 Integrity informationMSG 7 Fast correction degradation factorMSG 8 Reserved for future messagesMSG 9 GEO navigation message (X, Y, Z, time, etc.)MSG 10 Degradation ParametersMSG 11 Reserved for future messagesMSG 12 SBAS Network Time/UTC offset parametersMSG 13 to 16 Reserved for future messagesMSG 17 GEO satellite almanacsMSG 18 Ionospheric grid point masksMSG 19 to 23 Reserved for future messagesMSG 24 Mixed fast corrections/long term satellite error correctionsMSG 25 Long term satellite error correctionsMSG 26 Ionospheric delay correctionsMSG 27 SBAS outside service volume degradationMSG 28 to 61 Reserved for future messagesMSG 62 Internal Test MessageMSG 63 Null Message
More details on the UID content 7/9
Description of services delivered to users (provision of early GALILEO services through EGNOS) and roadmap for their implementation.
Services classificationOpen serviceSafety of Life service Commercial service
Features associated to the services provided:
PerformanceSignal / data accessLiabilities / Service level agreementFeesCertification
EGNOS evolution (general programmatic indications on planned upgrades, new missions, architecture extension)
More details on the UID content 8/9
EUAccession
AFI
MEDA
9 appendices (further technical details on system architecture and work logic, signal in space detailed description, compatibility with international standards, interoperability, contact points, websites, FAQ)
More details on the UID content 9/9
Main Navigation Page: www.esa.int/navigation
EGNOS SIS is not certified yet for Civil Aviation or other safety critical purposes
EGNOS SIS is currently provided without any warranties. The use of the EGNOS SIS is at the user’s own risk. The EGNOS SIS is provided for test purposes without any warranties regarding availability, continuity, accuracy, reliability, fitness for a particular purpose or meeting the users’requirements.
Liability on the services provided will be upon the EGNOS legal operator when established
Issues on the services and the associated warranties will be contained in specific service level agreement documents
Disclaimer
A first issue of 60 pages has been produced in 2004 but not delivered
An ESA/GJU review took place in July 2004
In January 2005 a second ESA/GJU took place.
EGNOS UID will be public available by November 2005 (TBC)
This document will be updated whenever EGNOS improvements are implemented and more knowledge on performance is available.
Schedule for the EGNOS UID
1st ESA/GJUReview
2nd ESA/GJUReview
Release
JAN 04 JUL 04 JAN 05 NOV 05 (TBC)
EGNOS UID will provide the navigation community a reference EGNOS document
Planned to be ready in November 2005 (TBC), will be a public document available for download on the web sites:
http://www.esa.int/egnos
http://www.esa.int/navigation/egnos-proUsers, receiver manufacturers, application
developers, institutions and organisations interested in EGNOS and satellite navigations will certainly benefit of this EGNOS UID, therefore they are invited to contribute.
Let us know the: subjects/explanations/pictures you would like to see in the documents and contact us via e-mail at: [email protected] indicating in the subject: EGNOS UID suggestion, we will appreciate it a lot!
Conclusion
