Minotaur II
![]() Minotaur II launch from Vandenberg | |
Function | Suborbital launch system |
---|---|
Manufacturer | Orbital Sciences (original); Northrop Grumman (current) |
Country of origin | ![]() |
Size | |
Height | 19.21 metres (63.0 ft) |
Diameter | 1.67 metres (5 ft 6 in) |
Mass | 36,200 kilograms (79,800 lb) |
Stages | 2 or 3 |
Capacity | |
Payload to 8000km S/O | |
Mass | 400 kilograms (880 lb) |
Launch history | |
Status | Active |
Launch sites | Vandenberg LF-06 Vandenberg TP-01 |
Total launches | 9 |
Success(es) | 8 |
First flight | 28 May 2000 |
Last flight | 7 July 2022 |
First stage – M55E1 | |
Powered by | 1 Solid |
Maximum thrust | 935 kilonewtons (210,000 lbf) |
Propellant | Solid |
Second stage – SR19AJ1 | |
Powered by | 1 Solid |
Maximum thrust | 268 kilonewtons (60,000 lbf) |
Propellant | Solid |
Third stage (Baseline) – M57A1 | |
Powered by | 1 Solid |
Propellant | Solid |
Third stage (Minotaur II+) – SR-73-AJ | |
Powered by | 1 Solid |
Propellant | Solid |
Third stage (Heavy) – Orion 50XL | |
Powered by | 1 Solid |
Maximum thrust | 118.2 kilonewtons (26,600 lbf) |
Burn time | 74 seconds |
Propellant | Solid |
[edit on Wikidata] |
Minotaur II rockets consist of the M55A1 first stage and SR19AJ1 second stage of a decommissioned Minuteman missile. The third stage varies depending on the configuration required for the payload: a Minuteman II M57A1 stage is used on the baseline configuration, whilst the Minotaur II+ uses an SR-73-AJ. The Minotaur II Lite is a two-stage configuration, without a third stage. A heavy configuration is also available, with an Orion 50XL third stage, as used on the Minotaur I. The baseline configuration can propel a 400 kilograms (880 lb) payload 4,000 kilometres (2,500 mi) downrange, whilst the heavy configuration can place 1,400 kilograms (3,100 lb) onto an 8,000-kilometre (5,000 mi) trajectory.
Nine Minotaur II rockets have been launched as of July 2022, with six flights using the baseline configuration and three using the Minotaur II+ configuration. Launches are conducted from Launch Facility 06 (LF-06) and Test Pad 01 (TP-01).
Launch history
Flight No. | Date (UTC) | Rocket | Payload | Launch pad | Trajectory | Result |
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1 | May 28, 2000 20:00 | Minotaur II | OSP-TLV Missile Defense Technology Demonstrator | Vandenberg LF-06 | Suborbital | Success |
2 | December 12, 2001 | Minotaur II | IFT-7 target mission | Vandenberg LF-06 | Suborbital | Success |
3 | March 16, 2002 02:11 | Minotaur II | TLV-1 IFT-8 GMDS target mission | Vandenberg LF-06 | Suborbital | Success |
4 | October 15, 2002 02:01 | Minotaur II | TLV-3 GMDS target mission | Vandenberg LF-06 | Suborbital | Success |
5 | December 11, 2002 08:26 | Minotaur II | TLV-4 GMDS target mission | Vandenberg LF-06 | Suborbital | Success |
6 | March 20, 2007 04:27 | Minotaur II | TLV-5 FTX-02 SBR target mission | Vandenberg LF-06 | Suborbital | Success |
7 | August 23, 2007 08:30 | Minotaur II+ | TLV-7 Mission 2a sensor target for NFIRE satellite | Vandenberg LF-06 | Suborbital | Success |
8 | September 24, 2008 06:57 | Minotaur II+ | TLV-8 Mission 2b sensor target for NFIRE satellite | Vandenberg LF-06 | Suborbital | Success |
9 | July 7, 2022 06:01[1] | Minotaur II+ | Mk21A reentry vehicle test[2][a] | Vandenberg TP-01 | Suborbital | Failure |
Notes
- ^ Reentry vehicle demonstration for the future LGM-35A Sentinel intercontinental ballistic missile. Rocket exploded 11 seconds after launch.
References
- Krebs, Gunter. "Minotaur-2 (OSP-SLV)". Gunter's Space Page. Retrieved 2009-04-30.
- Krebs, Gunter. "Minuteman Target Launch Vehicles". Gunter's Space Page. Retrieved 2009-04-28.
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