Post on 01-Apr-2020
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European Geostationary Navigation Overlay Service (EGNOS) Capability on Sirius 5 Satellite for SES
21 October 2009
SES SIRIUS
Information included herein is deemed non-ITAR.
Mike Pavloff, Executive Director, Space Systems/Loral
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Agenda
Overview EGNOS SES SS/L Sirius 5 program
EGNOS system description Sirius 5 EGNOS implementation Summary
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Overview
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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
Introduction – EGNOS Background
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EGNOS Service Area and Current Signals in Space
European Civil Aviation Conference (ECAC) Service Area
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EGNOS Required Performance
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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)
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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
Global reach, regional market focus
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The SES fleet
AS
TRA 1F
AS
TRA 1H
AM
C-16
AS
TRA 1K
R
NS
S-9
AM
C-18
NS
S-10
AS
TRA 1C
NS
S-6
NS
S-703
AS
TRA 2C
AS
TRA 2A
AS
TRA 2B
NS
S-806
NS
S-7
AM
C-7
AM
C-10
AM
C-11 A
MC
-1 A
MC
-4 A
MC
-15 AM
C-3 AM
C-5 A
MC
-6
Satcom
C3
AM
C-2
AS
TRA 3A A
STR
A 1E Sirius 4
Sirius 3
AM
C-21
AS
TRA 1M
AS
TRA 1L
AS
TRA 2D
NS
S-11 A
MC
-8
AS
TRA 1D
Ciel-2
AS
TRA 1G
NS
S-5
AM
C-9
• 40 Satellites: 37 operated by wholly-owned subsidiaries
• Located at 26 orbital positions
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Space Systems/Loral: World’s Leading Provider of Commercial Satellites
58 GEO satellites currently on-orbit
Approx 1600 on-orbit years experience
Over 230 satellites built 20 satellites in current
backlog $1.76 billion backlog as
of June 30 58 satellites operating at
GEO and HEO orbit
Workforce of 2,500+ Facility of 1.150M sq ft spanning 27 buildings
and 51 acres 50+ years heritage of performance and reliability
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)
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SS/L GEO and HEO Satellites Currently In Service
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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
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EGNOS System Description
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EGNOS Architecture
GEO
CPF = Central Processing Facility CCF = Central Control Facility
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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
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EGNOS Satellite Infrastructure
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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.
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Sirius 5 EGNOS Implementation
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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)
1191.795 MHz 1575.42 MHz
C5 C1
X (Not Used by EGNOS)
Uplink
Downlink
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Required EGNOS Payload Performance
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Spacecraft Overview
C-band antenna
EGNOS E5 antenna EGNOS L1 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
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Summary
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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