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G-1-5. 42 nd Argos Operations Committee Meeting. Assmannshausen, Germany June 3 rd to 5 th , 2008. SYSTEM IMPROVEMENTS. SYSTEM IMPROVEMENTS. Computer system architecture Ground stations network Global data real-time data PMT for users Regional processing centres.
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G-1-5 42ndArgos Operations Committee Meeting Assmannshausen, Germany June 3rd to 5th, 2008
SYSTEM IMPROVEMENTS • Computer system architecture • Ground stations network • Global data • real-time data • PMT for users • Regional processing centres
Computer system architecture • No meaningful modifications in 2007 • Heart of the architecture : two high performance storage disk arrays EVA 5000 (HP) • Oracle database • Linux servers • 3 configurations : • Operational • Validation • Dev. & Maint.
Ground stations networkGlobal data NOAA POES METOP NOAA POES 2 blind orbits / day except NOAA-18 50% of the data available within 30 minutes. METOP 14 orbits per day within 120 minutes Backup with Fairbanks and Wallops NOAA-18 blind orbits Fairbanks Svalbard Wallops
Ground stations networkReal-time data 56 antennas 88,6% efficiency New antennas in 2007 Andersen Guam USAF Elmendorf Alaska USAF Hickam Hawai USAF Kadena Japan USAF Lajes Portugal USAF Sembach Germany USAF Libreville Gabon NOAA Valley Forge USA Lockheed Martin Hatoyama Japan CLS Bitung (Indonesia) Suva (Fidji islands) Ryadh (Saudi Arabia)
GROUND SEGMENT ARCHITECTUREGlobal Argos Control and Processing centres ARGOS 2001 Phase 1 : 2003 New user interface New useroffice ARGOS 2001 Phase 2 : May 2005 New value-added services Argos system monitoring ARGOS SSA3 : July 2007 Argos 3 capabilities DMMC ARGOS 2001 Phase 3 : P3A : Argos cores services – Nov. 2007 P3B : GTS processing, coding and distribution – May 2008
PMT for users ARGOS-3 Instrument New capabilities Two-way communication link High data rate New modulations (QPSK, GMSK) New PMT (Platform Message Transceiver)
GROUND SEGMENT ARCHITECTUREPMT for users • The PMT works as a “modem” in charge of managing the telecommunication with the satellites • The PMT “modem” supports : • Transmission of uplink messages using several possible modulations (BPSK, QPSK, GMSK) • Reception and processing of downlink messages • Reception of broadcast messages (satellites constellations status, satellite pass predictions, time, …) • Communication with the platform for the acquisition of the sensor data and delivery of an acknowledgment when data has been correctly received by satellites
Size Consumption Performances Price PMT for users Industrial PMT ELTA KENWOOD Delivery of the first 500 PMT series in June 2008 New series of 500 PMT by the end of 2008 Delivery of the first 200 PMT series in February 2009
GROUND SEGMENT ARCHITECTUREArgos Regional Processing centres Indonesian RPC 2005 - 2007 Australian RPC 1989 - 2004 Peruvian RPC 1998 Japanese RPC 1991 - 2007