NROL-66 (RPP) (USA-225)
Minotaur I
Orbital Sciences Corporation
Mission
NROL-66 (RPP) (USA-225)
- Type: Government/Top Secret
- Orbit: Low Earth Orbit
USA-225, also known as the Rapid Pathfinder Prototype (RPP) and NRO Launch 66 (NROL-66), is an American satellite which was launched in 2011. The satellite is being used to perform technology demonstration and development experiments, including advanced dosimeters to characterize the space environment from a 1,200 kilometer low Earth orbit. It is operated by the United States National Reconnaissance Office.
Location
Space Launch Complex 8
Vandenberg SFB, CA, USA
Find the best place to watch the launch from Vandenberg
Space Launch Complex 8 has witnessed the launch of 9 rockets, including 9 orbital launch attempts. While Vandenberg SFB, CA, USA, has been the site for 862 rocket launches.
Vandenberg Space Force Base is a United States Space Force Base in Santa Barbara County, California. Established in 1941, Vandenberg Space Force Base is a space launch base, launching spacecraft from the Western Range, and also performs missile testing. The United States Space Force's Space Launch Delta 30 serves as the host delta for the base, equivalent to an Air Force air base wing. In addition to its military space launch mission, Vandenberg Space Force Base also hosts space launches for civil and commercial space entities, such as NASA and SpaceX.
Rocket
Orbital Sciences Corporation Minotaur I
The Minotaur I launch system is derived from converted Minuteman II ICBMs and is used to launch small satellites for the US Government. The first and second stages, taken directly from decommissioned Minuteman missiles, are mated to the Orion third and fourth stages taken from the Pegasus XL air-launched rocket family. An optional hydrazine-powered fifth stage called HAPS can be used.The Minotaur I launch system is derived from converted Minuteman II ICBMs and is used to launch small satellites for the US Government. An optional hydrazine-powered fifth stage called HAPS can be used.
Frequently Asked Questions
When was the Minotaur I launch scheduled?
The Orbital Sciences Corporation Minotaur I launch carrying the NROL-66 (RPP) (USA-225) mission was scheduled for:
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Where did the Minotaur I launch from?
The Orbital Sciences Corporation Minotaur I rocket launched from Space Launch Complex 8 at Vandenberg SFB, CA, USA. Vandenberg Space Force Base is a United States Space Force Base in Santa Barbara County, California. Established in 1941, Vandenberg Space Force Base is a space launch base, launching spacecraft from the Western Range, and also performs missile testing. The United States Space Force's Space Launch Delta 30 serves as the host delta for the base, equivalent to an Air Force air base wing. In addition to its military space launch mission, Vandenberg Space Force Base also hosts space launches for civil and commercial space entities, such as NASA and SpaceX.
What rocket was used for the NROL-66 (RPP) (USA-225) mission?
The NROL-66 (RPP) (USA-225) mission launched aboard a Orbital Sciences Corporation Minotaur I rocket. The Minotaur I launch system is derived from converted Minuteman II ICBMs and is used to launch small satellites for the US Government. The first and second stages, taken directly from decommissioned Minuteman missiles, are mated to the Orion third and fourth stages taken from the Pegasus XL air-launched rocket family. An optional hydrazine-powered fifth stage called HAPS can be used.The Minotaur I launch system is derived from converted Minuteman II ICBMs and is used to launch small satellites for the US Government. An optional hydrazine-powered fifth stage called HAPS can be used. Detailed rocket specifications and performance data are available in the rocket details above.
What weather conditions could have delayed this launch?
The Minotaur I launch could have been delayed by various weather conditions including lightning within 10 nautical miles, high winds (especially upper-level winds), thick cloud layers, precipitation, and poor visibility. Weather must be favorable at the launch site, downrange landing zones, and abort landing sites.
How can I get updates if the launch is delayed?
This page is updated in real-time with the latest launch status, including any delays or scrubs. You can also check our space launch schedule for the most current information. Enable push notifications through our mobile app to receive instant alerts about launch status changes, weather holds, or new launch times. We recommend following official live streams for the most immediate range updates.
