List of Thor and Delta launches (1990–1999)

Between 1990 and 1999, there were 89 Thor-based rockets launched, of which 85 were successful, giving a 95.5% success rate.

Notable missions Mars Pathfinder

Mars Climate Orbiter

Launch statistics

Rocket configurations

Launch sites

Launch outcomes

Launch history

1990 There were 13 Thor missiles launched in 1990. All 13 launches were successful. Flight No. Date / time (UTC) Rocket, Configuration Launch site Payload Payload mass Orbit Customer Launch outcome191 January 24, 199022:55 Delta II 6925 CCAFS LC-17A USA-50 (GPS II-6) 840 kg MEO US Air Force Navigation satelliteH-21 (F) February 7, 199001:33 H-I Tanegashima SLC-N MOS-1B (Momo-1B) / Oscar 20 / DEBUT LEO / SSO JAXA Earth observation satellite / Amateur radio satellite / Technological demonstration192 February 14, 199016:15 Delta II 6920-8 CCAFS LC-17B LACE / RME 2,470 kg LEO NASA Military research193 March 26, 199002:45 Delta II 6925 CCAFS LC-17A USA-54 (GPS II-7) 840 kg MEO US Air Force GPS Block II satellite194 April 13, 199022:28 Delta II 6925-8 CCAFS LC-17B Palapa B2R GTO NewSat First commercial Delta II launch, Comsat195 June 1, 199021:48 Delta II 6920-10 CCAFS LC-17A ROSAT 2,421 kg LEO NASA Space telescope196 June 12, 199005:52 Delta 4925-8 CCAFS LC-17B INSAT 1D GTO Comsat, Last Delta I launch197 August 2, 199005:39 Delta II 6925 CCAFS LC-17A USA-63 (GPS II-8) 840 kg MEO US Air Force Navigation satellite198 August 18, 199000:42 Delta II 6925 CCAFS LC-17B Thor 1 (BSB-R2) GTO ComsatH-22 (F) August 28, 199009:05 H-I Tanegashima SLC-N BS-3A (Yuri-3A) GTO Direct broadcasting satellite199 October 1, 199021:56 Delta II 6925 CCAFS LC-17A USA-64 (GPS II-9) 840 kg MEO US Air Force Navigation satellite200 October 30, 199023:16 Delta II 6925 CCAFS LC-17B Inmarsat-2 F1 GTO Inmarsat 200th Delta launch, Maritime comsat201 November 26, 199021:39 Delta II 7925 CCAFS LC-17A USA-66 (GPS IIA-1) 1,816 kg MEO US Air Force First 7000-series launch, Navigation satellite

1991 There were 6 Thor missiles launched in 1991. All 6 launches were successful. Flight No. Date / time (UTC) Rocket, Configuration Launch site Payload Payload mass Orbit Customer Launch outcome202 January 8, 199100:53 Delta II 7925 CCAFS LC-17B NATO 4A 1,433 kg GTO NATO Comsat203 March 8, 199123:03 Delta II 6925 CCAFS LC-17B Inmarsat-2 F2 GTO Inmarsat Comsat204 April 13, 199100:09 Delta II 7925 CCAFS LC-17B ASC-2 (Spacenet F4) GTO Communications satellite205 May 29, 199122:55 Delta II 7925 CCAFS LC-17B Aurora 2 GTO Communications satellite206 July 4, 199102:32 Delta II 7925 CCAFS LC-17A USA-71 (GPS IIA-2) 1,816 kg MEO US Air Force GPS Block IIA satelliteH-23 (F) August 25, 199108:40 H-I Tanegashima SLC-N BS-3B (Yuri-3B) GTO JAXA Direct broadcasting satellite

1992 There were 12 Thor missiles launched in 1992. All 12 launches were successful. Flight No. Date / time (UTC) Rocket,Configuration Launch site Payload Payload mass Orbit Customer Launchoutcome H-24 (F) 11 February 199201:50 H-I Tanegashima, SLC-N JERS-1 (Fuyo) LEO / SSO JAXA Final flight of Japanese license built Deltas; final use of Extended Long Tank Thor. Earth observation satellite 207 23 February 199222:29 Delta II 7925-9.5 CCAFS, LC-17B USA-79 (GPS IIA-3) 840 kg MEO U.S. Air Force Navigation satellite 208 10 April 199203:20 Delta II 7925-9.5 CCAFS, LC-17B USA-80 (GPS IIA-4) 840 kg MEO U.S. Air Force Navigation satellite 209 14 May 199200:40 Delta II 7925 CCAFS, LC-17B Palapa B4 GTO Indosat Communications satellite 210 7 June 199216:40 Delta II 6920-10 CCAFS, LC-17A EUVE 3,275 kg LEO NASA Space telescope 211 7 July 199209:20 Delta II 7925-9.5 CCAFS, LC-17B USA-83 (GPS IIA-5) 840 kg MEO U.S. Air Force Navigation satellite 212 24 July 199214:26 Delta II 6925 CCAFS, LC-17A GEOTAIL 980 kg HEO NASA Final 6000-series launch, Earth observation satellite 213 31 August 199210:41 Delta II 7925 CCAFS, LC-17B Satcom C4 GTO Communications satellite 214 9 September 199208:57 Delta II 7925-9.5 CCAFS, LC-17A USA-84 (GPS IIA-6) 840 kg MEO U.S. Air Force Navigation satellite 215 12 October 199209:47 Delta II 7925 CCAFS, LC-17B DFS Kopernikus-3 850 kg GTO Deutsche Bundespost Communications satellite 216 22 November 199223:54 Delta II 7925-9.5 CCAFS, LC-17A USA-85 (GPS IIA-7) 840 kg MEO U.S. Air Force Navigation satellite 217 18 December 199222:16 Delta II 7925-9.5 CCAFS, LC-17B USA-87 (GPS IIA-8) 840 kg MEO U.S. Air Force Navigation satellite

1993 There were 7 Thor missiles launched in 1993. All 7 launches were successful. Flight No. Date / time (UTC) Rocket, Configuration Launch site Payload Payload mass Orbit Customer Launch outcome218 February 3, 199302:55 Delta II 7925 CCAFS LC-17AUSA-88 (GPS IIA-9) 1,816 kg MEO US Air Force Navigation satellite219 March 30, 199303:09 Delta II 7925 CCAFS LC-17A USA-90 (GPS IIA-10)/SEDS-1 1,816 kg MEO/LEO US Air Force Navigation satellite/Tether demonstration220 May 13, 199300:07 Delta II 7925 CCAFS LC-17AUSA-91 (GPS IIA-11) 1,816 kg MEO US Air Force Navigation satellite221 June 26, 199313:27 Delta II 7925 CCAFS LC-17A USA-92 (GPS IIA-12)/PMG 1,816 kg MEO/LEO US Air Force Navigation satellite/Technology demonstration222 August 30, 199312:38 Delta II 7925 CCAFS LC-17B USA-94 (GPS IIA-13) 1,816 kg MEO US Air Force Navigation satellite223 October 26, 199317:04 Delta II 7925 CCAFS LC-17BUSA-96 (GPS IIA-14) 1,816 kg MEO US Air Force Navigation satellite224 December 8, 199300:48 Delta II 7925 CCAFS LC-17A NATO 4B GTO NATO Communications satellite

1994 There were 3 Thor missiles launched in 1994. All 3 launches were successful. Flight No. Date / time (UTC) Rocket, Configuration Launch site Payload Payload mass Orbit Customer Launch outcome225 February 19, 199423:45 Delta II 7925-8 CCAFS LC-17B Galaxy 1R GTO Intelsat Communications satellite226 March 10, 199403:40 Delta II 7925 CCAFS LC-17AUSA-100 (GPS IIA-15)/SEDS-2 1,816 kg MEO/LEO US Air Force Navigation satellite/Tether demonstration227 November 1, 199409:31 Delta II 7925-10 CCAFS LC-17B Wind 1,195 kg Heliocentric NASA Solar research

1995 There were 3 Thor missiles launched in 1995. 2 of the 3 launches were successful, giving a 66.7% success rate. Flight No. Date / time (UTC) Rocket, Configuration Launch site Payload Payload mass Orbit Customer Launch outcome 228 5 August 199511:10 Delta II 7925–9.5 CCAFS, LC-17B Koreasat 1 711 kg GTO KT Corporation Communications satellite, One SRB failed to separate, retarding the booster's orbital velocity. Spacecraft eventually reached correct orbit but with substantially shortened operational life. 229 4 November 199514:22 Delta II 7920-10 VAFB, SLC-2W RADARSAT-1 and SURFSAT 2,750 kg Geocentric CSA Earth observation satellite, first Delta II launch from Vandenberg.230 30 December 199513:48:00 Delta II 7920-10 CCAFS, LC-17A Rossi X-ray Timing Explorer 3,200 kg Low Earth orbit NASA Explorer program

1996 There were 10 Thor missiles launched in 1996. All 10 launches were successful. Flight No. Date / time (UTC) Rocket, Configuration Launch site Payload Payload mass Orbit Customer Launch outcome231 January 14, 199611:10 Delta II 7925 CCAFS LC-17B Koreasat-2 232 February 17, 199620:43 Delta II 7925-8 CCAFS LC-17B NEAR 487 kg Heliocentric NASA Asteroid orbiter233 February 24, 199611:24 Delta II 7925-10 VAFB SLC-2W Polar 1,300 kg Geocentric NASA Earth observation satellite234 March 28, 199600:21 Delta II 7925 CCAFS LC-17B USA-117 (GPS IIA-16) 1,816 kg MEO US Air Force Navigation satellite235 April 24, 199612:27 Delta II 7920-10 VAFB SLC-2W MSX 2,700 kg Geocentric BMDO Infra-red telescope236 May 24, 199601:10 Delta II 7925 CCAFS LC-17B Galaxy 9 700 kg GSO PanAmSat / Intelsat Communications satellite237 July 16, 199600:50 Delta II 7925 CCAFS LC-17AUSA-126 (GPS IIA-17) 1,816 kg MEO US Air Force Navigation satellite238 September 12, 199608:49 Delta II 7925 CCAFS LC-17A USA-128 (GPS IIA-18) 1,816 kg MEO US Air Force Navigation satellite239 November 7, 199617:00 Delta II 7925 CCAFS LC-17A Mars Global Surveyor 1,030.5 kg Heliocentric NASA Mars orbiter240 December 4, 199606:58 Delta II 7925 CCAFS LC-17B Mars Pathfinder 264 kg Heliocentric NASA Mars lander and rover

1997 There were 11 Thor missiles launched in 1997. 10 of the 11 launches were successful, giving a 90.9% success rate. Flight No. Date / time (UTC) Rocket, Configuration Launch site Payload Payload mass Orbit Customer Launch outcome241 January 17, 199716:28 Delta II 7925-9.5 CCAFS LC-17A GPS IIR-1 2,030 kg Planned:MEO US Air Force Exploded 13 seconds after launch due to SRB failure. Navigation satellite242 May 5, 199714:55 Delta II 7920-10C VAFB SLC-2 MS-1 LEO Iridium Five Iridium satellites243 May 20, 199722:39 Delta II 7925-9.5 CCAFS LC-17A Telenor Thor II 1,467 kg GTO Telenor Hughes HS 376 satellite244 July 9, 199713:04 Delta II 7920-10C VAFB SLC-2W MS-2 LEO Iridium Five Iridium satellites245 July 23, 199703:43 Delta II 7925-9.5 CCAFS LC-17A USA-132 (GPS IIR-2) 2,032 kg MEO US Air Force Navigation satellite246 August 21, 199700:38 Delta II 7920-10C VAFB SLC-2W MS-3 LEO Iridium Five Iridium satellites247 August 25, 199714:39 Delta II 7920-8 CCAFS LC-17A Advanced Composition Explorer (ACE) 562 kg Heliocentric NASA Solar wind and cosmic-ray research248 September 27, 199701:23 Delta II 7920-10C VAFB SLC-2W MS-4 LEO Iridium Five Iridium satellites249 November 6, 199700:30 Delta II 7925 CCAFS LC-17A USA-134 (GPS IIA-19) 2,032 kg MEO US Air Force Navigation satellite250 November 9, 199701:34 Delta II 7920-10C VAFB SLC-2W MS-5 LEO Iridium Five Iridium satellites251 December 20, 199713:16 Delta II 7920-10C VAFB SLC-2W MS-6 LEO Iridium Five Iridium satellites

1998 There were 13 Thor missiles launched in 1998. 12 of the 13 launches were successful, giving a 92.3% success rate. Flight No. Date / time (UTC) Rocket, Configuration Launch site Payload Payload mass Orbit Customer Launch outcome252 January 10, 199800:32 Delta II 7925-9.5 CCAFS SLC-17B Skynet 4D Astrium Services 253 February 14, 199814:34 Delta II 7420-10C CCAFS SLC-17A Globalstar-1 550 kg LEO Globalstar Four SS/L satellites254 February 18, 199813:58 Delta II 7920-10C VAFB SLC-2W MS-7 LEO Iridium Five Iridium satellites255 March 30, 199806:02 Delta II 7920-10C VAFB SLC-2W MS-8 LEO Iridium Five Iridium satellites256 April 24, 199822:38 Delta II 7420-10C CCAFS SLC-17A Globalstar-2 550 kg LEO Globalstar Four SS/L satellites257 May 17, 199821:16 Delta II 7920-10C VAFB SLC-2W MS-9 LEO Iridium Five Iridium satellites258 June 10, 199800:35 Delta II 7925-9.5 CCAFS SLC-17A Thor III GEO Telenor259 August 27, 199801:17 Delta III 8930 CCAFS SLC-17B Galaxy 10 700 kg GTO PanAmSat / Intelsat Maiden flight of Delta III, Destroyed by range safety after control problems and depletion of hydraulic fluid, Communications satellite260 September 8, 199821:13 Delta II 7920-10C VAFB SLC-2W MS-10 LEO Iridium Five Iridium satellites261 October 24, 199812:08 Delta II 7326 CCAFS SLC-17A Deep Space 1 373 kg Heliocentric NASA Satellite Technology262 November 6, 199813:37 Delta II 7920-10C VAFB SLC-2W MS-11 LEO Iridium Five Iridium satellites263 November 22, 199823:54 Delta II 7925-9.5 CCAFS SLC-17B BONUM-1 264 December 11, 199818:45 Delta II 7425 CCAFS SLC-17A Mars Climate Orbiter 338 kg Heliocentric NASA Payload later failed, Mars orbiter

1999 There were 11 Thor missiles launched in 1999. 10 of the 11 launches were successful, giving a 90.9% success rate.