PNT Symposium Paper -- Sirius 5 EGNOS -- Pavloff
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21 October 2009 SES SIRIUS European Geostationary Navigation Overlay Service (EGNOS) Capability on Sirius 5 Satellite for SES Mike Pavloff, Executive Director, Space Systems/Loral Information included herein is deemed non-ITAR. 1 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Agenda Overview EGNOS SES SS/L Sirius 5 program EGNOS system description Sirius 5 EGNOS implementation Summary 2 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Overview 3 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Introduction – EGNOS Background EGNOS – European Geostationary Navigation Overlay System Part of the world-wide Satellite-Based Augmentation Systems (SBAS) to the U.S. Global Positioning System (GPS), the Russian GLONASS System and European Galileo system An initiative of the European Commission (EC) and the European Space Agency (ESA) to build a civilian component to the military navigation systems of GPS and GLONASS Provide integrity and high availability and continuity to the (aeronautical) users; improve accuracy of single-frequency navigation receivers Other SBAS elements are WAAS (US, Canada Anik 1R) and MSAS (Japan MTSAT-1R, 2) Three GEO satellites providing EGNOS signals are currently on orbit (Inmarsat 3F2, Inmarsat 4F2 and ESA Artemis satellite) Ground infrastructure deployed EGNOS Satellite operations Autonomous network of monitoring stations located throughout Europe monitor all visible GPS and GLONASS satellites Data collected by monitoring stations are processed to generate integrity messages and GPS/GLONASS/Galileo clock and ionospheric correction data EGNOS messages uplinked to satellites and down to EGNOS users via L1 and E5 channels EGNOS certified for non-safety of life (“open service”) applications earlier this month To be certified later this year for safety of life non-precision approach and approaches with vertical guidance (APV) aeronautical applications EC solicited additional GEO assets to replace the existing satellites SES providing one such asset on Sirius 5 4 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” EGNOS Service Area and Current Signals in Space European Civil Aviation Conference (ECAC) Service Area 5 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” EGNOS Required Performance 6 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” SES Overview The world’s pre-eminent satellite group 40 satellites: global fleet with optimal look angles and comprehensive landmass coverage, operated through our Fully-owned operating companies SES ASTRA, SES WORLD SKIES Majority-owned SES SIRIUS, CIEL, QuetzSat Premier provider of transmission capacity Media distribution Connectivity Advanced satellite-based platforms and services for Media and government organizations Created in 1985 and based in Luxembourg, Europe 1,624 staff around the world Traded on Euronext Paris and Luxembourg stock exchanges (SESG) 7 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Global reach, regional market focus SES ASTRA is Europe’s #1 Direct to Home (DTH) satellite service provider reaching 122 million households (including cable) SES WORLD SKIES is a major player in broadcasting for US cable services reaching some 80 million US households and premier provider of satellite communications services with more than 250 customers based in 80 countries 8 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” 40 Satellites: 37 Located at 26 NSS-6 • operated by wholly- owned subsidiaries • orbital positions NSS-5 NSS-11 NSS-703 ASTRA 1D ASTRA 2C ASTRA 2D NSS-9 ASTRA 2B ASTRA 2A ASTRA 3A ASTRA 1E ASTRA 1G ASTRA 1M ASTRA 1L ASTRA 1KR ASTRA 1H ASTRA 1F AMC-8 AMC-7 AMC-10 Ciel-2 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Sirius 3 AMC-11 Sirius 4 AMC-21 9 AMC-18 ASTRA 1C AMC-15 AMC-1 AMC-4 AMC-2 Satcom C3 NSS-7 AMC-3 AMC-16 AMC-5 AMC-9 AMC-6 NSS-806 NSS-10 The SES fleet Space Systems/Loral: World’s Leading Provider of Commercial Satellites Since 2004, 40 percent market share (high power commercial) Long history of providing government-hosted payloads on SS/L satellites, including MSAS (Japanese wide-area augmentation system) Over 230 satellites built 20 satellites in current backlog $1.76 billion backlog as 58 GEO satellites of June 30 currently on-orbit 58 satellites operating at Approx 1600 on-orbit GEO and HEO orbit years experience Workforce of 2,500+ Facility of 1.150M sq ft spanning 27 buildings and 51 acres 50+ years heritage of performance and reliability 10 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” SS/L GEO and HEO Satellites Currently In Service 11 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Sirius 5 Program Overview Contract awarded to SS/L October 2008 Planned launch in 4Q2011 Specified Orbital Location: 5°E Mission Broadcast Satellite Service (BSS) and Fixed Satellite Service (FSS) over Nordic region, Sub-Saharan Africa (SSA), South America, and continental Europe (Ka-band uplink) C-band and Ku-band transponders Multi-mission payload across multiple SES operating companies (Sirius, Astra, and WORLD SKIES) Service life 15 years (designed for substantially more propellant life) EGNOS C- to L-band navigation payload added February 2009 SES selected by the European Commission to provide EGNOS GEO satellite signals in space 12 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” EGNOS System Description 13 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” EGNOS Architecture GEO CPF = Central Processing Facility CCF = Central Control Facility 14 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” EGNOS Ground Infrastructure • RIMS = Ranging and Integrity Monitoring Station • MCC = Master Control Center • NLES = Navigation Land Earth Station • PACF = Performance Assessment and Check-out Facility • ASQF = Application Specific Qualification Facility EGNOS Ground Infrastructure Has Been Deployed 15 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” EGNOS Satellite Infrastructure 16 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” EGNOS Signal and Message Structure Specifications in RTCA MOPS DO229 EGNOS Signal in Space (SIS) is broadcast on GPS L1 (1575.42 MHz) With Sirius 5, EGNOS SIS will broadcast on L1 and E5 (1191.795 MHz) GEOs use GPS-like PRN code PRN 120-138 assigned for use for SBAS satellites Data rate 250 bits per second 5 times faster than GPS data rate Utilizes Forward Error Correction (FEC) coding 1 message = 250 bits = 1 second 250-bit message structure 8-bit message preamble (for data acquisition purposes) 6-bit message type identifier (0 – 63) 212-bit message data 24-bit message parity (Cyclic Redundancy Check) Message types include GEO-do-not-use, fast corrections, user differential range error (UDRE) / integrity, slow corrections, ionosperic corrections, etc. 17 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Sirius 5 EGNOS Implementation 18 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Frequency Plan Uplink in C-band Bent-pipe transponder to L1 and E5 channels L1 is 20 MHz bandwidth centered at 1575.42 MHz E5 is 51 MHz bandwidth centered at 1191.795 MHz Precise timing and control through the uplink stations (NLES’s) Uplink C5 C1 Downlink X 1191.795 MHz (Not Used by EGNOS) 1575.42 MHz 19 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Required EGNOS Payload Performance 20 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Spacecraft Overview EGNOS E5 antenna EGNOS L1 antenna C-band antenna Spacecraft features: • Standard SS/L 1300 bus • ~12 kW solar array power at end of life • 15 year service life EGNOS payload features: • Uplink uses same C-band antenna as for FSS/BSS service • Heritage antennas built by MDA (Montreal) for Anik 1R • High-stability local oscillator required to meet EC requirements 21 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Summary 22 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” Summary EGNOS infrastructure has been deployed EGNOS now certified for non-safety-of-life applications Expect full certification later this year for civil aviation applications 3 satellites currently provide EGNOS signal in space These three satellites are reaching end of life EC solicited replacement EGNOS signals in space in 2008 EC selected SES to provide an EGNOS payload on the Sirius 5 satellite Sirius 5 being built by Space Systems / Loral and on track for 4Q2011 launch 23 “Use or disclosure of the data contained on this sheet is subject to the restrictions on the title page.” .