RADARSAT-1: Mission Performance and Plans Surendra Parashar, Ahmed Mahmood, Dan Showalter, Satish Srivastava Canadian Space Agency IGARSS 2007 Barcelona, Spain, July 23-27, 2007

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% Canada's first operational EO satellite Sun-synchronous, Dawn–Dusk LEO Altitude: 798 km Period: minutes Repeat Cycle: 24 days Orbits per day: 14 Forestry Crop Monitoring Antarctic Mapping Missions (1997 & 2000) Background Mission (Global stereo coverage of landmass) Ice Monitoring Pollution Monitoring Disaster Watch – International Charter Hurricane Watch HH Polarized C-Band SAR Launched Nov – Operational April 1996 Mission Lifetime: 5.25 years – Since Launch: 11 years

SAR Data to Users Network Stations Reception Processing/ Archive Facilities Alaska/US Puerto-Rico Brazil Argentina Tromso/Norway West Freugh/UK Riyadh/Saudi Arabia Beijing/China Seoul/Korea Bangkok/Thailand Singapore Kumamoto/Japan Australia (Hobart & Alice Spring) McMurdo/Antarctica Transportable Stations Canadian & Other Ground Calibration Sites Transponders - Resolute - Ottawa - Fredericton - Prince Albert - Amazon Rainforest Mission Control System (MCS) SAR Data to Users Reques t for SAR Data Canadian Archive (CARCH) Gatineau Order Desk RSI/Richmond, B.C. CIS/Ottawa USG/ASF/Alaska CSA/St. Hubert (CGOD & MCS/CAS) Canadian Data Reception Facilities (Gatineau, Prince Albert) SAR Data Links Communications Links Telemetry Tracking and Command Stations (TTCS) St..Hubert/Saskatoon Mission Control Facility (MCF) St. Hubert Mission Management Office (MMO) St. Hubert Canadian Data Processing Facility (CDPF) Gatineau RADARSAT

Added 10 additional fine beams after launch Modes and Beams

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

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

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 Operational Statistics

RADARSAT-1 ScanSAR Wide B W1, W2, S6 Orbit MAR-2002 ScanSAR Image Quality 2002 ScanSAR processor upgrade at CDPF Notable quality improvements Elimination of processing problems Scalloping Location Error due to PRF Ambiguity Visibility of Beam Boundaries Automatic Gain Control (AGC) Saturation Error Eastern U.S.

Daily Monitoring of Disaster Occurrences Planning of Disaster Acquisitions –Considered as a mission of opportunity Daily Disaster Watch Reports –Planned acquisitions (restricted distribution) –Acquired Imagery (public distribution) Disaster Watch Database (~3000 images) Became operational in mid-1998 Daily Monitoring of Disaster Occurrences Planning of Disaster Acquisitions –Considered as a mission of opportunity Daily Disaster Watch Reports –Planned acquisitions (restricted distribution) –Acquired Imagery (public distribution) Disaster Watch Database (~3000 images) Became operational in mid-1998 Special Projects: Disaster Watch & Hurricane Watch

Charter operations are based on a concept of joint, multi-agency/multi-satellite mission planning Currently involving CSA, CNES, ESA, ISRO, CONAE, NOAA/USGS, JAXA, DMC, CNSA Data Acquisition by SAR and Optical sensors 24 hours a day World Wide Surveillance Number of Charter Events: : : : : : : : : 12 (18-JUL-07) Number of Charter Events: : : : : : : : : 12 (18-JUL-07) International Charter “Space and Major Disasters”

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)

S7 SCW S7 and S2/S4 S7 and W2 Background Mission

Interferometric pairs: From September 2, 2000 during cycles 1-2, 2-3, 3-4, 4-5 and 5-6, up to January 23, 2001 Canadian Interferometric Mission

Canada Antarctica AMM, 1997 USA Australia Africa Continental Mosaics

RADARSAT-1 Program: An Established Success Program has pioneered technical innovation, operational service delivery to clients, commercialization and partnerships in Earth Observation. Program has confirmed Canadian leadership in SAR, established RADARSAT brand name around the world, and established Canadian presence in the market place with clients in more than 60 countries. Program has met the mission objectives and continues to establish new bench-marks of excellence and success.

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.