I would like to do interferometric processing using SAR images of a different bands besides C-Band sentinel 1 data. So, could you suggest me a satellite mission(s) that is still operational till the present if available?
Many SAR missions are operational at the moment, but Sentinel-1 is among the only ones which are freely accessible. If you have budget for commercial data (or find a way to get academic access), the following missions are an option:
- TerraSAR-X / TanDEM-X: https://www.dlr.de/content/en/articles/missions-projects/terrasar-x/terrasar-x-earth-observation-satellite.html
- Radarsat-2: https://www.asc-csa.gc.ca/eng/satellites/radarsat2/Default.asp
- ALOS-2: https://www.eorc.jaxa.jp/ALOS-2/en/about/palsar2.htm
- COSMO-SkyMed: https://www.telespazio.com/en/programmes/cosmo-skymed
- ICEYE: https://www.iceye.com/
- Capella: https://www.capellaspace.com/data/
- SAOCOM: https://saocom.veng.com.ar/en/
and these are to come:
- COSMO-SkyMed Second Generation: https://www.airforce-technology.com/projects/cosmo-skymed-second-generation-csg-satellites/
- Radarsat Constellation Mission: https://www.asc-csa.gc.ca/eng/satellites/radarsat/default.asp
- TanDEM-L: https://www.dlr.de/hr/en/desktopdefault.aspx/tabid-8113/
- ALOS-4: https://global.jaxa.jp/projects/sat/alos4/
- xpressar: http://www.xpresssar.com
- PredaSAR: https://www.predasar.com/
- Umbra: https://umbra.space/
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Excellent list, but you forgot to mention the Spanish PAZ: https://www.hisdesat.es/en/satelites_observ-paz/ which is very similar to TSX and TDX and thus fully compatible. This results in a repeat reate of 4,7, and 11 days for all imaging modes Staring SpotLight to WideScansar.
Btw: the main distributor of the TerraSAR-X satellites is https://www.intelligence-airbusds.com/
Another one is NOVASAR, https://www.sstl.co.uk/space-portfolio/launched-missions/2010-2019/novasar-1-launched-2018
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Good point, thank you!