USA-265

USA-265, also known as GPS IIF-11, GPS SVN-73 and NAVSTAR 75, is an American navigation satellite which forms part of the Global Positioning System. It was the eleventh of twelve Block IIF satellites to be launched.[2]

USA-265
A Block IIF GPS satellite
Mission typeNavigation
OperatorUS Air Force
COSPAR ID2015-062A[1]
SATCAT no.41019[1]
Mission duration12 years (planned)
Spacecraft properties
SpacecraftGPS SVN-73 (IIF-11)
Spacecraft typeGPS Block IIF
ManufacturerBoeing
Launch mass1,630 kilograms (3,590 lb)[2]
Start of mission
Launch date31 October 2015, 16:13 (2015-10-31UTC16:13Z) UTC
RocketAtlas V 401, AV-060[3]
Launch siteCape Canaveral SLC-41[3]
ContractorULA
Orbital parameters
Reference systemGeocentric
RegimeMedium Earth
(Semi-synchronous)
Perigee altitude20,444 km (12,703 mi)[4]
Apogee altitude20,491 km (12,733 mi)[4]
Inclination54.99 degrees[4]
Period729.58 minutes[4]
Epoch5 December 2015, 17:24:23 UTC
 

Launch

Built by Boeing and launched by United Launch Alliance, USA-265 was launched at 16:13 UTC on 31 October 2015, atop an Atlas V 401 carrier rocket, vehicle number AV-060.[3] The launch took place from Space Launch Complex 41 at the Cape Canaveral Air Force Station,[5] and placed USA-265 directly into semi-synchronous orbit.[4]

Orbit

As of 5 December 2015, USA-265 was in an orbit with a perigee of 20,444 kilometers (12,703 mi), an apogee of 20,491 kilometers (12,733 mi), a period of 729.58 minutes, and 54.99 degrees of inclination to the equator.[4] It is used to broadcast the PRN 10 signal, and operates in slot 6 of plane E of the GPS constellation. The satellite has a design life of 15 years and a mass of 1,630 kilograms (3,590 lb). [2] It is currently in service following commissioning on December 9, 2015.[6]

References
  1. "Navstar 75". US National Space Science Data Center. Retrieved 10 December 2015.
  2. Krebs, Gunter. "GPS-2F (Navstar-2F)". Gunter's Space Page. Retrieved 10 December 2015.
  3. McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 10 December 2015.
  4. McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 10 December 2015.
  5. McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Page. Retrieved 10 December 2015.
  6. "NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2015093". United States Coast Guard. Retrieved 10 December 2015.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.