Synthetic Aperture Radar [C-band] (SAR)
SAR |
Advanced Synthetic Aperture Radar (C-band) |
Satellites |
RadarSat 1/2 |
Status |
Operational – Utilised in the period 1995 to ~ 2015 |
Mission |
High-resolution all-weather multi-purpose imager for ocean, land and ice |
Instrument type |
C-band SAR, frequency 5.405 GHz, multi-polarisation and variable pointing/resolution |
Scanning technique |
Side-looking, possible both to left- and right- end, (alternatively) 20-49° off-nadir, swath 25 to 500 km, depending on operation mode – See table |
Coverage/cycle |
Global coverage in 4 days for the ‘ScanSAR wide’ mode (if used 50 % of the time); in longer periods for other operation modes, up to 6 months |
Resolution |
3 to 100 m, depending on operation mode – See table |
Resources |
Mass: 705 kg - Power: 1650 W - Data rate: 105 Mbps |
Operation mode |
Resolution |
Swath |
Polarisation |
Standard |
25 x 28 m2 |
100 km selectable in the range 250-750 km |
HH/HV or VV/VH |
Fine |
10 x 9 m2 |
50 km selectable in the range 525-750 km |
HH/HV or VV/VH |
ScanSAR wide |
100 x 100 m2 |
500 km in the range 250-750 |
HH/HV or VV/VH |
ScanSAR narrow |
50 x 50 m2 |
300 km selectable in the range 300-720 km |
HH/HV or VV/VH |
Polarimetric standard |
25 x 28 m2 |
25 km selectable in the range 250-600 km |
VV/HH, HH/HV, VV/VH |
Polarimetric fine |
11 x 9 m2 |
25 km selectable in the range 400-600 km |
VV/HH, HH/HV, VV/VH |
Multi-look fine |
11 x 9 m2 |
50 km selectable in the range 400-750 km |
HH or VV |
Ultra-fine |
3 x 3 m2 |
20 km selectable in the range 400-550 km |
HH or VV |