COSMO-1
{{Short description|Imaging satellite}}
{{Use British English|date=October 2021}}
{{Use dmy dates|date=October 2021}}
{{Infobox spaceflight
| name = COSMO-1
| names_list = COSMO-SkyMed 1
| image =
| image_caption =
| image_size = 300px
| mission_type = Radar imaging
| COSPAR_ID = 2007-023A
| SATCAT = 31598
| mission_duration = 5 years (planned)
{{time interval|8 June 2007|show=ymd}} (in progress)
| spacecraft = COSMO-SkyMed 1
| spacecraft_bus = PRIMA
| manufacturer = Thales Alenia Space
| launch_mass = {{cvt|1700|kg}}
| dimensions =
| power =
| 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
| disposal_type =
| deactivated =
| last_contact =
| orbit_reference = Geocentric orbit
| orbit_regime = Sun-synchronous orbit
| orbit_periapsis = {{cvt|628.7|km}}
| orbit_apoapsis = {{cvt|630.7|km}}
| 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.{{cite web|url=http://www.asi.it/en/activity/earth_observation/cosmoskymed|title=COSMO-SkyMed|publisher=Agenzia Spaziale Italiana|access-date=1 October 2013}}
Spacecraft description
COSMO-1 was constructed by Thales Alenia Space, based on the PRIMA (PRecursore IperSpettrale della Missione Applicativa) satellite bus.{{cite web|url=https://www.asi.it/scienze-della-terra/prisma/|title=PRISMA|publisher=Agenzia Spaziale Italiana|date=12 October 2021|access-date=12 October 2021}} It was the first PRIMA-based spacecraft to be launched.{{cite web |url=https://space.skyrocket.de/doc_sat/alenia_prima.htm|title=Alenia Aerospace → Thales Alenia: PRIMA|first=Gunter|last=Krebs|publisher=Gunter's Space Page|date=3 October 2021|access-date=12 October 2021}} Designed for a five-year mission.{{cite web|url=https://space.skyrocket.de/doc_sdat/cosmo-skymed-1.htm|title=COSMO 1, 2, 3, 4|first=Gunter|last=Krebs|publisher=Gunter's Space Page|date=7 July 2020 |access-date=12 October 2021}}
Launch
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.{{cite web |url=http://spaceflightnow.com/delta/d324/status.html|title=Mission Status Center|first=Justin|last=Ray|publisher=Spaceflight Now|date=8 June 2007|access-date=1 October 2013}}
Mission
The satellite operates in a Sun-synchronous orbit. An orbit with a perigee of {{cvt|629|km}}, an apogee of {{cvt|631|km}}, inclined at 97.88° to the equator. It has an orbital period of 97.16 minutes.{{cite web|url=http://www.n2yo.com/satellite/?s=31598|title=SKYMED 1|publisher=N2YO.com|access-date=12 October 2021}}
References
{{Reflist|30em}}
{{Portal|Spaceflight}}
{{Orbital launches in 2007}}
Category:Spacecraft launched in 2007
Category:Space synthetic aperture radar
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