| COSMO-1 | |
| Names List: | COSMO-SkyMed 1 |
| Mission Type: | Radar imaging |
| Operator: | ASI / MDD |
| Cospar Id: | 2007-023A |
| Satcat: | 31598 |
| Mission Duration: | 5 years (planned) (in progress) |
| Spacecraft: | COSMO-SkyMed 1 |
| Spacecraft Bus: | PRIMA |
| Manufacturer: | Thales Alenia Space |
| Launch Date: | 8 June 2007, 02:34:00 UTC |
| Launch Rocket: | Delta II 7420-10C (D324) |
| Launch Site: | Vandenberg, SLC-2W |
| Launch Contractor: | United Launch Alliance |
| Entered Service: | 2007 |
| Orbit Reference: | Geocentric orbit |
| Orbit Regime: | Sun-synchronous orbit |
| Orbit Inclination: | 97.88° |
| Orbit Period: | 97.16 minutes |
| Apsis: | gee |
COSMO-1 or COSMO-SkyMed 1 is an Italian radar imaging satellite. Launched in 2007, it was the first of four COSMO-SkyMed satellites to be placed into orbit. The spacecraft is operated by the Italian Space Agency (ASI), in conjunction with Italy's Ministry of Defence. It uses synthetic-aperture radar to produce images for civilian, commercial and military purposes.[1]
COSMO-1 was constructed by Thales Alenia Space, based on the PRIMA (PRecursore IperSpettrale della Missione Applicativa) satellite bus.[2] It was the first PRIMA-based spacecraft to be launched.[3] Designed for a five-year mission.[4]
ASI awarded Boeing a contract to launch COSMO-1, with the launch being subcontracted to United Launch Alliance when it was formed to take over Delta launch operations. The launch took place at 02:34:00 UTC on 8 June 2007. A Delta II launch vehicle in the 7420-10C configuration, flight number Delta 324, lifted off from SLC-2W at Vandenberg Air Force Base, successfully injecting the satellite into low Earth orbit. Spacecraft separation occurred 58 minutes and 5 seconds after liftoff.[5]
The satellite operates in a Sun-synchronous orbit. An orbit with a perigee of, an apogee of, inclined at 97.88° to the equator. It has an orbital period of 97.16 minutes.[6]