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RADARSAT-1: Mission Performance and Plans

RADARSAT-1: Mission Performance and Plans. Surendra Parashar, Ahmed Mahmood, Dan Showalter, Satish Srivastava Canadian Space Agency surendra.parashar@space.gc.ca. IGARSS 2007 Barcelona, Spain, July 23-27, 2007. Canada's first operational EO satellite. HH Polarized C-Band SAR

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RADARSAT-1: Mission Performance and Plans

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  1. RADARSAT-1: Mission Performance and Plans Surendra Parashar, Ahmed Mahmood, Dan Showalter, Satish Srivastava Canadian Space Agency surendra.parashar@space.gc.ca IGARSS 2007 Barcelona, Spain, July 23-27, 2007

  2. Canada's first operational EO satellite HH Polarized C-Band SAR Launched Nov. 1995 – Operational April 1996 Mission Lifetime: 5.25 years – Since Launch: 11 years Ice Monitoring Pollution Monitoring Disaster Watch – International Charter Hurricane Watch Forestry Crop Monitoring Antarctic Mapping Missions (1997 & 2000) Background Mission (Global stereo coverage of landmass) As of 30 April 2007 Total minutes of data: 426,688 Total orbits completed: 59,957 Total of customer image requests: 274,534 Average System Performance: > 95% Sun-synchronous, Dawn–Dusk LEO Altitude: 798 km Period: 100.7 minutes Repeat Cycle: 24 days Orbits per day: 14

  3. Number of requests per Order Desk CGOD,CIS,MCS/CAS: 112,829 NASA/NOAA: 88,588 MDA (GSI): 79,247 ESA: 0 The Ground Infrastructure 6 Order Desks 35 Data Reception Facilities 23 Archiving Facilities

  4. RADARSAT-1 Reception Coverage 2007 2006 Norway(2007) 2005 Tromso (1996) Russia(2007) Fairbanks (1995) Moscow(2004) Prince Albert (1995) 2004 West Freugh (1996) Kazakhstan (2)(2005) China (1998) Gatineau (1995) Turkey (2002) 2003 Japan (1998) Miami (2004) Korea (1998) Benevento(2006) Saudi Arabia (1998) 2002 Thailand (2000) Puerto Rico (2000) Singapore (1997) 2001 Malaysia (2003) Brazil (2001) 2000 Alice Springs (1998) 2 Transportable Stations (2000) Argentina (2002) 1999 1 Transportable Stations (2003) Hobart (1998) 3 Transportable Stations (2004) 1998 2 Transportable Stations(2005) 1997 McMurdo (1995) 1996 1995 • Data Reception Facilities: 35 (including 8 transportable stations) • Data Archiving Facilities: 23 • Actually under certification: 0

  5. Operational Statistics

  6. Operational Statistics

  7. Operational Statistics System Performance is defined as the % of planned requests which were properly executed by the payload and successfully received by the reception facilities

  8. BUS • Power, Thermal, Propulsion, Mechanisms all Nominal • Attitude Control: Nominal Performance • Momentum wheels & all redundant units: unserviceable • Control using magnetorquers only, except short term • TT&C: Nominal Operations • Redundant down-link Xmitter reduced capability • Degraded operation feasible after prime failure • PAYLOAD • SAR Antenna: Nominal Operations • SAR System: Nominal Operations, no redundancy • OBR: Nominal Operations, one unit only (One d/l per day)

  9. Background Mission SCW S7 S7 and S2/S4S7 and W2

  10. Future Plans • Continue to use satellite resources prudently so as to prolong satellite life. • Emphasize maintenance and safety, not undertake performance enhancements, and minimize risks. • Continue Operations Transition Planning to allow smooth transfer from RADARSAT-1 to RADARSAT-2 operations, utilization and markets. • RADARSAT-1 Ops funding in place until March 30, 2009, this ensuring overlap with RADARSAT-2 Ops.

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