Synthetic Aperture Radar (SAR)

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Satellite specifications

Satellite Band Frequency [GHz] Polarization Look direction Look angle [°]
ERS C 5.3 vv R 23
JERS L 1.275 hh R 35.21
Radarsat-1 C 5.3 hh R 10-60
Envisat C 5.331 hh,vv,hv,vh R 15-45
ALOS L 1.270 hh,vv,hv,vh R 8-60
COSMO-SkyMed X 9.6 hh,vv,hv,vh R,L 20-60?
TerraSAR-X X 9.65 hh,vv,hv,vh R,L 15-60
Radarstat-2 C 5.405 hh,vv,hv,vh R,L 18-50
KOMPSAT-5 X 9.66 hh,vv,hv,vh R,L 20-55
Sentinel-1 C 5.405 hh,vv,hv,vh R 20-46
ALOS-2 L 1.2575 hh,vv,hv,vh R,L 8-70
SAOCOM L 1.275 hh,vv,hv,vh R,L 18-50
ICEYE X 9.7 vv R,L 10-35

Satellite orbits

Satellite Altitude [km] Inclination [°] Period [min] Repeat cycle [days]
ERS 785 98.52 100 35
JERS 568 97.7 96 44
Radarsat-1 798 98.6 100.7 24
Envisat 800 98.55 100.6 35
ALOS 691.65 98.16 98.51 46
COSMO-SkyMed 619.6 97.86 97.1 16
TerraSAR-X 515 97.44 11
Radarstat-2 798 98.6 100.7 24
KOMPSAT-5 550 98.1 98.5 28
Sentinel-1 693 98.2 98.7 12
ALOS-2 628 97.9 97 14
SAOCOM 619.6 97.86 97.1 16
ICEYE 500-570 97.4 96 17

Constellations

Constellation Satellite Launch End
ERS ERS-1 1991-07-17 2000-03-10
ERS ERS-2 1995-04-21 2011-09-05
JERS JERS-1 1992-01-01 1998-01-01
Radarsat-1 Radarsat-1 1995-11-04 2013-03-29
Envisat Envisat 2002-03-01 2012-05-09
ALOS ALOS 2006-01-24 2011-05-12
COSMO-SkyMed COSMO-1 2007-06-08 /
COSMO-SkyMed COSMO-2 2007-12-09 /
COSMO-SkyMed COSMO-3 2008-10-25 /
COSMO-SkyMed COSMO-4 2010-11-06 /
TerraSAR-X TerraSAR-X 2007-06-15 /
TerraSAR-X TanDEM-X 2010-06-21 /
Radarstat-2 Radarstat-2 2007-12-14 /
KOMPSAT-5 KOMPSAT-5 2013-08-22 /
Sentinel-1 Sentinel-1A 2014-04-03 /
Sentinel-1 Sentinel-1B 2016-04-25 2021-12-23
ALOS-2 ALOS-2 2014-05-24 /
SAOCOM SAOCOM-1A 2018-10-08 /
SAOCOM SAOCOM-1B 2020-08-30 /