The PAZ (Spanish for "peace") satellite, launched on 22 February 2018, is owned and operated by Hisdesat, and is based on the use of a high resolution X-band Synthetic Aperture Radar (SAR). The satellite operates in the same orbit of its twin satellites TerraSAR-X and TanDEM-X, ad the three satellites work together as a constellation.
PAZ flies in a polar dawn-dusk sun-synchronous orbit, which allows it to cover all of Earth with a mean revisit time of 24 hours; thanks to the use of two ground stations (located in Madrid and in the Canary Islands) the mean access delay is slightly higher than 1 day.
The on board orbit position is known with accuracy better than 10 m, due to the use of a GPS system in the orbit control system; this makes it possible to obtain a very precise geolocation of PAZ products.
|Date of launch||22 February 2018|
|Mission status||Operating nominally|
|Orbit Height||514 km at equator|
|Orbit Type||Polar sun-synchronous|
|Orbit per day||15 2/11|
|Orbit Period||95 minutes|
|Orbit Repeat Cycle||11 days|
|Onboard sensors provided under TPM||X-Band Radar|