USA-258
USA-258, also known as GPS IIF-8, GPS SVN-69 and NAVSTAR 72, is an American navigation satellite which forms part of the Global Positioning System. It was the eighth of twelve Block IIF satellites to be launched.[2]
A Block IIF GPS satellite | |
| Mission type | Navigation |
|---|---|
| Operator | US Air Force |
| COSPAR ID | 2014-068A[1] |
| SATCAT no. | 40294[1] |
| Mission duration | 12 years (planned) |
| Spacecraft properties | |
| Spacecraft | GPS SVN-69 (IIF-8) |
| Spacecraft type | GPS Block IIF |
| Manufacturer | Boeing |
| Launch mass | 1,630 kilograms (3,590 lb)[2] |
| Start of mission | |
| Launch date | 29 October 2014, 17:21 UTC |
| Rocket | Atlas V 401, AV-050[3] |
| Launch site | Cape Canaveral SLC-41[3] |
| Contractor | ULA |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Medium Earth (Semi-synchronous) |
| Perigee altitude | 20,455 km (12,710 mi)[4] |
| Apogee altitude | 20,480 km (12,730 mi)[4] |
| Inclination | 55.00 degrees[4] |
| Period | 729.56 minutes[4] |
| Epoch | 29 October 2014 |
Launch edit
Built by Boeing and launched by United Launch Alliance, USA-258 was launched at 17:21 UTC on 29 October 2014, atop an Atlas V 401 carrier rocket, vehicle number AV-050.[3] The launch took place from Space Launch Complex 41 at the Cape Canaveral Air Force Station,[5] and placed USA-258 directly into medium Earth orbit.[4]
Orbit edit
As of 29 October 2014, USA-258 was in an orbit with a perigee of 20,455 kilometers (12,710 mi), an apogee of 20,480 kilometers (12,730 mi), a period of 729.56 minutes, and 55.00 degrees of inclination to the equator.[4] It is used to broadcast the PRN 03 signal, and operates in slot 1 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 12, 2014.[6]
References edit
- ^ a b "Navstar 72". US National Space Science Data Center. Retrieved 29 October 2014.
- ^ a b c Krebs, Gunter. "GPS-2F (Navstar-2F)". Gunter's Space Page. Retrieved 29 October 2014.
- ^ a b c McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 29 October 2014.
- ^ a b c d e f McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 29 October 2014.
- ^ McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Page. Retrieved 29 October 2014.
- ^ "NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014090". United States Coast Guard. Retrieved 13 December 2014.