USA-248
{{Short description|American navigation satellite used for GPS}}
{{Infobox spaceflight|auto=all
| name = USA-248
| image = Navstar-2F.jpg
| image_caption = A Block IIF GPS satellite
| insignia =
| mission_type = Navigation
| operator = US Air Force
| COSPAR_ID = 2014-008A{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2014-008A|title=Navstar 69|publisher=US National Space Science Data Center|access-date=21 February 2014}}
| mission_duration = 12 years (planned)
| spacecraft = GPS SVN-64 (IIF-5)
| spacecraft_type = GPS Block IIF
| manufacturer = Boeing
| launch_mass = {{convert|1630|kg}}
| dimensions =
| power =
| launch_date = {{start-date|21 February 2014, 01:59|timezone=yes}} UTC
| launch_rocket = {{nowrap|Delta IV-M+(4,2),}} D365
| launch_site = Cape Canaveral SLC-37B
| launch_contractor = ULA
| entered_service =
| disposal_type =
| deactivated =
| orbit_epoch = 22 April 2014
| orbit_reference = Geocentric
| orbit_regime = Medium Earth
(Semi-synchronous)
| orbit_apoapsis = {{convert|20191|km|abbr=on}}
| orbit_periapsis = {{convert|20175|km|abbr=on}}
| orbit_inclination = 54.96 degrees
| orbit_period = 717.99 minutes
| apsis = gee
}}
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.
Launch
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.{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|publisher=Jonathan's Space Page|first=Jonathan|last=McDowell|author-link=Jonathan McDowell|access-date=21 February 2014}} The launch took place from Space Launch Complex 37B at the Cape Canaveral Air Force Station,{{cite web|url=http://planet4589.org/space/lvdb/list2.html|title=Launch List|publisher=Jonathan's Space Page|work=Launch Vehicle Database|first=Jonathan|last=McDowell|access-date=21 February 2014|archive-date=15 August 2020|archive-url=https://web.archive.org/web/20200815040340/http://planet4589.org/space/lvdb/list2.html|url-status=dead}} and placed USA-248 directly into medium Earth orbit.
Orbit
As of 22 April 2014, USA-248 was in an orbit with a perigee of {{convert|20175|km|sp=us}}, an apogee of {{convert|20191|km|sp=us}}, a period of 717.99 minutes, and 54.96 degrees of inclination to the equator.{{cite web|url=http://planet4589.org/space/log/satcat.txt|title=Satellite Catalog|publisher=Jonathan's Space Page|first=Jonathan|last=McDowell|access-date=21 February 2014}} 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 {{convert|1630|kg}}.
{{cite web|url=http://space.skyrocket.de/doc_sdat/navstar-2f.htm|title=GPS-2F (Navstar-2F)|first=Gunter|last=Krebs|work=Gunter's Space Page|access-date=21 February 2014}} It is currently in service following commissioning on May 30, 2014.{{cite web|url=http://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2014047|title=NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014047|publisher=United States Coast Guard|access-date=31 May 2014}}
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References
{{Portal|Spaceflight}}
{{reflist}}
{{GPS satellites}}
{{Orbital launches in 2014}}
Category:Spacecraft launched in 2014
Category:Spacecraft launched by Delta IV rockets
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