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Minotaur-4-Lite (OSP-2 Peacekeeper SLV)
Minotaur-4-Lite (HTV-2a) [OSC]
The most recent addition to Orbital's line of space launch vehicles, the Minotaur-4 (a.k.a. OSP-2 Peacekeeper SLV) combines elements of government-furnished decommissioned Peacekeeper missiles with technologies from our proven Pegasus, Taurus and OSP Minotaur boosters. The vehicle consists of three Peacekeeper solid rocket stages, a commercial Orion-38 or a Star-48BV fourth stage motor and subsystems derived from established space launch boosters. Under a 10-year contract with the U.S. Air Force Space and Missile Systems Center, Orbital will develop and operate the low-cost Minotaur-4 vehicle to launch U.S. government-funded satellites into low-Earth orbit.
The Minotaur-4-Lite suborbital launch vehicle incorporates a standard 92-inch fairing from the Taurus booster. The fourth stage is omitted.
→ complete list of all Minotaur-4 / -5 / -6 flights
→ complete list of all Peacekeeper / Castor-120 based rockets
| Version | Stage 1 | Stage 2 | Stage 3 |
|---|---|---|---|
| Minotaur-4-Lite | TU-903 (SR-118) | SR-119 | SR-120 |
Nr Vehicle Date LS Sub Suc Payload
1 1 Minotaur-4-Lite 22.04.2010 Va SLC-8 * HTV 2a
4 2 Minotaur-4-Lite 11.08.2011 Va SLC-8 * HTV 2b
Planned:
3 Minotaur-4-Lite xx.xx.20xx Va SLC-8 * CSM
Launch sites:
CC = Spaceport Florida, Cape Canaveral, Florida, USA 
/ SLC-46
Kd = Kodiak Launch Complex, Kodiak Island, Narrow Cape, Alaska, USA / LP-1
Va = Vandenberg AFB, California, USA / SLC-8
WI = Mid-Atlantic Regional Spaceport (MARS), Wallops Island, Virginia, USA / LA-0B
Source: Orbital Sciences Corp. Website
