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Delta 6925
Part of Thor Family
American orbital launch vehicle. Four stage vehicle consisting of 9 x Castor 4A + 1 x EELT Thor/RS-27+ 1 x Delta K + 1 x Star 48B

Status: Retired 1992. First Launch: 1989-02-14. Last Launch: 1992-07-24. Number: 13 . Payload: 3,981 kg (8,776 lb). Thrust: 3,480.60 kN (782,470 lbf). Gross mass: 218,000 kg (480,000 lb). Height: 38.10 m (124.90 ft). Diameter: 2.44 m (8.00 ft). Apogee: 185 km (114 mi).

LEO Payload: 3,981 kg (8,776 lb) to a 185 km orbit. Payload: 1,446 kg (3,187 lb) to a GTO.


More at: Delta 6925.

Family: orbital launch vehicle. Country: USA. Engines: RS-27A. Spacecraft: HS 376, GPS Block 2 and 2A, Eurostar 1000, DUVE, Geotail. Projects: Navstar, Thor Comsat. Launch Sites: Cape Canaveral, Cape Canaveral LC17B, Cape Canaveral LC17A. Stages: Delta Thor XLT, Castor 4A engine, Delta K, Star 48. Agency: Inmarsat, Douglas.

1989 February 14 - . 18:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 6925.
  • USA 35 - . Payload: GPS 2-1 / GPS SVN 14. Mass: 1,665 kg (3,670 lb). Nation: USA. Agency: USAF. Manufacturer: Seal Beach. Program: Navstar. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: Navstar. Spacecraft: GPS Block 2 and 2A. USAF Sat Cat: 19802 . COSPAR: 1989-013A. Apogee: 21,758 km (13,519 mi). Perigee: 21,480 km (13,340 mi). Inclination: 56.6000 deg. Period: 777.00 min. First launch of second generation / operational Global Positioning System. Placed in Plane E Slot 1 of the constellation. Suffered a shutdown of its onboard reaction wheels on March 26, 2000. Decommissioned on April 14, 2000 and replaced by GPS 2R-4..

1989 June 10 - . 22:19 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 6925.
  • USA 38 - . Payload: GPS 2-2 / GPS SVN 13. Mass: 1,665 kg (3,670 lb). Nation: USA. Agency: USAF. Manufacturer: Seal Beach. Program: Navstar. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: Navstar. Spacecraft: GPS Block 2 and 2A. USAF Sat Cat: 20061 . COSPAR: 1989-044A. Apogee: 20,514 km (12,746 mi). Perigee: 19,849 km (12,333 mi). Inclination: 54.8000 deg. Period: 718.00 min. Global Positioning System. Placed in Plane B Slot 3..

1989 August 18 - . 05:58 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 6925.
  • USA 42 - . Payload: GPS 2-3 / GPS SVN 16. Mass: 1,665 kg (3,670 lb). Nation: USA. Agency: USAF. Manufacturer: Seal Beach. Program: Navstar. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: Navstar. Spacecraft: GPS Block 2 and 2A. USAF Sat Cat: 20185 . COSPAR: 1989-064A. Apogee: 21,576 km (13,406 mi). Perigee: 21,509 km (13,365 mi). Inclination: 56.4000 deg. Period: 773.80 min. Global Positioning System. Retired..

1989 October 21 - . 09:31 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 6925.
  • USA 47 - . Payload: GPS 2-4 / GPS SVN 19. Mass: 1,665 kg (3,670 lb). Nation: USA. Agency: USAF. Manufacturer: Seal Beach. Program: Navstar. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: Navstar. Spacecraft: GPS Block 2 and 2A. USAF Sat Cat: 20302 . COSPAR: 1989-085A. Apogee: 21,236 km (13,195 mi). Perigee: 21,190 km (13,160 mi). Inclination: 53.3000 deg. Period: 760.20 min. Global Positioning System. Placed in Plane A Slot 5..

1989 December 11 - . 18:10 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Thor. Launch Vehicle: Delta 6925.
  • USA 49 - . Payload: GPS 2-5 / GPS SVN 17. Mass: 1,665 kg (3,670 lb). Nation: USA. Agency: USAF. Manufacturer: Seal Beach. Program: Navstar. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: Navstar. Spacecraft: GPS Block 2 and 2A. USAF Sat Cat: 20361 . COSPAR: 1989-097A. Apogee: 20,371 km (12,657 mi). Perigee: 19,992 km (12,422 mi). Inclination: 55.4000 deg. Period: 718.00 min. Global Positioning System. Placed in Plane D Slot 3..

1990 January 24 - . 22:55 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 6925.
  • USA 50 - . Payload: GPS 2-6 / GPS SVN 18. Mass: 1,665 kg (3,670 lb). Nation: USA. Agency: USAF. Manufacturer: Seal Beach. Program: Navstar. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: Navstar. Spacecraft: GPS Block 2 and 2A. USAF Sat Cat: 20452 . COSPAR: 1990-008A. Apogee: 21,226 km (13,189 mi). Perigee: 21,168 km (13,153 mi). Inclination: 55.0000 deg. Period: 759.50 min. Global Positioning System. Retired..

1990 March 26 - . 02:45 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 6925.
  • USA 54 - . Payload: GPS 2-7 / GPS SVN 20. Mass: 1,665 kg (3,670 lb). Nation: USA. Agency: USAF. Manufacturer: Seal Beach. Program: Navstar. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: Navstar. Spacecraft: GPS Block 2 and 2A. USAF Sat Cat: 20533 . COSPAR: 1990-025A. Apogee: 21,156 km (13,145 mi). Perigee: 20,960 km (13,020 mi). Inclination: 53.7000 deg. Period: 753.80 min. Global Positioning System. Declared unusable on 21 May 1996 at 22:42 following two uncommanded changes in frequency standards..

1990 August 2 - . 05:39 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 6925.
  • USA 63 - . Payload: GPS 2-8 / GPS SVN 21. Mass: 1,665 kg (3,670 lb). Nation: USA. Agency: USAF. Manufacturer: Seal Beach. Program: Navstar. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: Navstar. Spacecraft: GPS Block 2 and 2A. USAF Sat Cat: 20724 . COSPAR: 1990-068A. Apogee: 20,468 km (12,718 mi). Perigee: 19,896 km (12,362 mi). Inclination: 54.7000 deg. Period: 718.00 min. Global Positioning System. Placed in Plane E Slot 2..

1990 August 18 - . 00:42 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Thor. Launch Vehicle: Delta 6925.
  • Thor 1 / BSB-R2 - . Payload: Marco Polo 2. Mass: 1,220 kg (2,680 lb). Nation: Norway. Agency: BSB. Program: Thor Comsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376. USAF Sat Cat: 20762 . COSPAR: 1990-074A. Apogee: 35,794 km (22,241 mi). Perigee: 35,779 km (22,231 mi). Inclination: 0.0000 deg. Period: 1,436.10 min.

    UK DBS; 31 deg W. Direct broadcasting system. Expected operational life 12.5 yr. Owner/operator: British Sky Broadcasting Ltd, 6 Centaurs Business Park, Grant Way, Isleworth, Middlesex TW7 5QD. Sold on-orbit in 1992 to Telenor Norway and redesignated Thor 1. Positioned in geosynchronous orbit at 50 deg W in 1990; 31 deg W in 1991-1992; 1 deg W in 1992-1999 As of 3 September 2001 located at 0.72 deg W drifting at 0.001 deg E per day. As of 2007 Mar 9 located at 61.51W drifting at 3.830W degrees per day.


1990 October 1 - . 21:56 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 6925.
  • USA 64 - . Payload: GPS 2-9 / GPS SVN 15. Mass: 1,665 kg (3,670 lb). Nation: USA. Agency: USAF. Manufacturer: Seal Beach. Program: Navstar. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: Navstar. Spacecraft: GPS Block 2 and 2A. USAF Sat Cat: 20830 . COSPAR: 1990-088A. Apogee: 20,363 km (12,652 mi). Perigee: 20,002 km (12,428 mi). Inclination: 55.4000 deg. Period: 718.00 min. Global Positioning System. Placed in Plane D Slot 5..

1990 October 30 - . 23:16 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Thor. Launch Vehicle: Delta 6925.
  • Inmarsat 2 F1 - . Mass: 1,385 kg (3,053 lb). Nation: International. Agency: Inmarsat. Manufacturer: Toulouse. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: Eurostar 1000. USAF Sat Cat: 20918 . COSPAR: 1990-093A. Apogee: 35,800 km (22,200 mi). Perigee: 35,775 km (22,229 mi). Inclination: 1.7000 deg. Period: 1,436.20 min.

    Mobile communications; 64.5 deg E. Positioned in geosynchronous orbit at 65 deg E in 1990-1996; 179 deg E in 1996-1999 As of 5 September 2001 located at 178.97 deg E drifting at 0.004 deg W per day. As of 2007 Mar 8 located at 143.50E drifting at 0.015W degrees per day.


1991 March 8 - . 23:03 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Thor. Launch Vehicle: Delta 6925.
  • Inmarsat 2 F2 - . Mass: 1,385 kg (3,053 lb). Nation: International. Agency: Inmarsat. Manufacturer: Toulouse. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: Eurostar 1000. USAF Sat Cat: 21149 . COSPAR: 1991-018A. Apogee: 35,793 km (22,240 mi). Perigee: 35,780 km (22,230 mi). Inclination: 2.2000 deg. Period: 1,436.10 min.

    Mobile and maritime communications; 15.5 deg W. Positioned in geosynchronous orbit at 15 deg W in 1991-1996; 55 deg W in 1997-1999; DRIFT As of 6 September 2001 located at 97.95 deg W drifting at 0.002 deg W per day. As of 2007 Mar 11 located at 97.96W drifting at 0.006W degrees per day.


1992 July 24 - . 14:26 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 6925.
  • Geotail - . Payload: Geotail. Mass: 1,008 kg (2,222 lb). Nation: Japan. Agency: ISAS. Class: Earth. Type: Magnetosphere satellite. Spacecraft: Geotail. USAF Sat Cat: 22049 . COSPAR: 1992-044A. Apogee: 399,941 km (248,511 mi). Perigee: 57,448 km (35,696 mi). Inclination: 18.0000 deg. Period: 18,904.40 min.

    Measured magnetosphere and Earth's geomagnetic tail. To investigate the structure and dynamics of the geomagnetic tail that extends on the nightside of the Earth. Launch time 1426 GMT. Launching states Japan and the United States of America. Launching organization NASA.

  • DUVE - . Payload: DUVE. Nation: Japan. Agency: MDAC. Class: Earth. Type: Seismology satellite. Spacecraft: DUVE. Decay Date: 1993-03-16 . USAF Sat Cat: 22050 . COSPAR: 1992-044B. Apogee: 1,413 km (877 mi). Perigee: 215 km (133 mi). Inclination: 27.4000 deg. Period: 101.17 min. Diffuse Ultraviolet Explorer package bolted to Delta 2 2nd stage..


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