USA-248, also known as GPS IIF-5, GPS SVN-64 and NAVSTAR 69, is an American navigation satellite which forms part of the Global Positioning System. It was the fifth of twelve Block IIF satellites to be launched.
A Block IIF GPS satellite
|Operator||US Air Force|
|Mission duration||12 years (planned)|
|Spacecraft||GPS SVN-64 (IIF-5)|
|Spacecraft type||GPS Block IIF|
|Launch mass||1,630 kilograms (3,590 lb)|
|Start of mission|
|Launch date||21 February 2014, 01:59UTC|
|Rocket||Delta IV-M+(4,2), D365|
|Launch site||Cape Canaveral SLC-37B|
|Perigee altitude||20,175 km (12,536 mi)|
|Apogee altitude||20,191 km (12,546 mi)|
|Epoch||22 April 2014|
Built by Boeing and launched by United Launch Alliance, USA-248 was launched at 01:59 UTC on 21 February 2014, atop a Delta IV carrier rocket, flight number D365, flying in the Medium+(4,2) configuration. The launch took place from Space Launch Complex 37B at the Cape Canaveral Air Force Station, and placed USA-248 directly into medium Earth orbit.
As of 22 April 2014, USA-248 was in an orbit with a perigee of 20,175 kilometers (12,536 mi), an apogee of 20,191 kilometers (12,546 mi), a period of 717.99 minutes, and 54.96 degrees of inclination to the equator. It is used to broadcast the PRN 30 signal, and operates in slot 6 of plane A of the GPS constellation. The satellite has a design life of 15 years and a mass of 1,630 kilograms (3,590 lb).  It is currently in service following commissioning on May 30, 2014.
- "Navstar 69". US National Space Science Data Center. Retrieved 21 February 2014.
- Krebs, Gunter. "GPS-2F (Navstar-2F)". Gunter's Space Page. Retrieved 21 February 2014.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 21 February 2014.
- McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 21 February 2014.
- McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Page. Retrieved 21 February 2014.
- "NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014047". United States Coast Guard. Retrieved 31 May 2014.
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