TOR Terra SARX The upcoming Terra SARX Mission

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TOR Terra. SAR-X The upcoming Terra. SAR-X Mission L. Grunwaldt, R. Schmidt, D. König,

TOR Terra. SAR-X The upcoming Terra. SAR-X Mission L. Grunwaldt, R. Schmidt, D. König, R. König, F. -H. Massmann Geo. Forschungs. Zentrum Potsdam (GFZ) Department 1 : Geodesy and Remote Sensing Telegrafenberg 14473 Potsdam International Laser Ranging Service - General Assembly, October 2005 Eastbourne, UK

TOR Coming soon: Terra. SAR-X is the first German long-duration synthetic aperture radar (SAR)

TOR Coming soon: Terra. SAR-X is the first German long-duration synthetic aperture radar (SAR) mission Launch: mid 2006 from Baikonur cosmodrome Orbit: sun-synchronous, circular dusk-dawn orbit at appr. 514 km altitude, 97. 44° inclination Science objectives for X-band SAR: • Landslide, rock fall and urban subsidence • Ice sheet dynamics • High-resolution Digital Terrain Models (DTM) for surface water availability modeling • Seismic loading cycle studies GFZ / CSR secondary payload: TOR (Tracking, Occultation and Ranging) • Precise dual-frequency GPS receiver with POD and radio occultation capability • CHAMP type LRR array for external calibration / validation of GPS orbits (GFZ Potsdam will deliver predictions) SLR Coordinator: R. König, Technical Contact: L. Grunwaldt, Project Responsible: Ch. Reigber SLR Tracking Request to ILRS in preparation International Laser Ranging Service - General Assembly, October 2005 Eastbourne, UK

TOR Terra. SAR-X Manufacturing Terra. SAR-X LRR array during vibration test S/C Body (~5

TOR Terra. SAR-X Manufacturing Terra. SAR-X LRR array during vibration test S/C Body (~5 m long) Two-spot far field for velocity aberration correction GPS POD antennas International Laser Ranging Service - General Assembly, October 2005 Eastbourne, UK