To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.

From Wikipedia, the free encyclopedia

A Block IIF GPS satellite
Mission typeNavigation
OperatorUS Air Force
COSPAR ID2014-008A[1]
SATCAT no.39533[1]
Mission duration12 years (planned)
Spacecraft properties
SpacecraftGPS SVN-64 (IIF-5)
Spacecraft typeGPS Block IIF
Launch mass1,630 kilograms (3,590 lb)[2]
Start of mission
Launch date21 February 2014, 01:59 (2014-02-21UTC01:59Z) UTC
RocketDelta IV-M+(4,2), D365[3]
Launch siteCape Canaveral SLC-37B[3]
Orbital parameters
Reference systemGeocentric
RegimeMedium Earth
Perigee altitude20,175 km (12,536 mi)[4]
Apogee altitude20,191 km (12,546 mi)[4]
Inclination54.96 degrees[4]
Period717.99 minutes[4]
Epoch22 April 2014

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.[2]


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.[3] The launch took place from Space Launch Complex 37B at the Cape Canaveral Air Force Station,[5] and placed USA-248 directly into medium Earth orbit.[4]


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.[4] 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). [2] It is currently in service following commissioning on May 30, 2014.[6]


  1. ^ a b "Navstar 69". US National Space Science Data Center. Retrieved 21 February 2014.
  2. ^ a b c Krebs, Gunter. "GPS-2F (Navstar-2F)". Gunter's Space Page. Retrieved 21 February 2014.
  3. ^ a b c McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 21 February 2014.
  4. ^ a b c d e f McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 21 February 2014.
  5. ^ McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Page. Retrieved 21 February 2014.
  6. ^ "NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014047". United States Coast Guard. Retrieved 31 May 2014.

This page was last edited on 14 January 2021, at 22:05
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.