3 ms·
SAR typically are in sun-synchronous orbits too, but mostly for power management reasons. difference is, of course, that they do not need to have their ascendin
by m2fkxy 4y ago
SAR typically are in sun-synchronous orbits too, but mostly for power management reasons. difference is, of course, that they do not need to have their ascending node in daylight.
the only SAR constellations I know aren't in SSO are Israeli (due to launch geometry constraints) and NRO's birds (LACROS/ONYX/TOPAZ, whatever their names are) [1]. some of them have exotic retrograde orbits [2].
[1] see e.g. https://space.skyrocket.de/doc_sdat/onyx.htm https://space.skyrocket.de/doc_sdat/onyx.htm
[2] see e.g. https://spaceflight101.com/delta-iv-nrol-47/nrol-47/ https://spaceflight101.com/delta-iv-nrol-47/nrol-47/
- campchase 4y agoBest comment in the thread, I knew about Onyx but nothing more than the Wikipedia page (hardly anything)