Rujukan Satelit ketenteraan

  1. 1 2 3 "Military Satellite Systems: A History — Part One". MilsatMagazine. May 2008. Dicapai 2014-01-21. 
  2. ↑ "This Week in NASA History: Discoverer 1". NASA. 23 February 2007.  Missing or empty |url= (bantuan); |access-date= memerlukan |url= (bantuan)
  3. ↑ "Jonathan's Space Report : No. 369" (TXT). Planet4589.org. Dicapai 2016-02-27. 
  4. ↑ James Bamford (2008). The Shadow Factory. Doubleday. m/s. 176. 
  5. ↑ Bruce Carlson (2010-09-13). "National Reconnaissance Office Update" (PDF). Air & Space Conference and Technology Exposition 2010. Dicapai 2010-11-25. 
  6. ↑ "Riesige Lauscher am Himmel". Die Zeit. 28 July 1995. 
  7. ↑ Gruss, Mike (2015-10-09). "Russian Satellite Maneuvers, Silence Worry Intelsat". SpaceNews. Dicapai 2016-01-20. 
  8. ↑ Howell, Elizabeth. "Navstar: GPS Satellite Network". SPACE.com. Dicapai February 14, 2013. 
  9. ↑ "Why Did the Department of Defense Develop GPS?". Trimble Navigation Ltd. Diarkibkan daripada asal pada October 18, 2007. Dicapai January 13, 2010. 
  10. ↑ "Release No: 65-333 : Project Geodetic Explorer-A" (PDF). Ntrs.nasa.gov. 1965-10-29. Dicapai 2016-02-27. 
  11. ↑ "SECOR Chronology". Mark Wade's Encyclopedia Astronautica. Dicapai January 19, 2010. 

Rujukan

WikiPedia: Satelit ketenteraan http://www.astronautix.com/craft/secor.htm http://www.milsatmagazine.com/story.php?number=181... http://www.space.com/19794-navstar.html http://spacenews.com/russian-satellite-maneuvers-s... http://www.trimble.com/gps/whygps.shtml#0 http://www.zeit.de/1995/31/Riesige_Lauscher_am_Him... http://www.afa.org/events/conference/2010/scripts/... http://www.planet4589.org/space/jsr/back/news.369 https://books.google.com/books?vid=ISBN8187966440&... https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa....