Magnum (satellite)

Last updated

Magnum was a class of SIGINT spy satellites reportedly operated by the National Reconnaissance Office (NRO) for the United States Central Intelligence Agency (CIA). The program remains classified, and the information that exists is speculative.

Contents

Launch

It is believed that two Magnum satellites were launched from Space Shuttle Discovery (OV-103) during the missions STS-51-C in 1985 and STS-33 in 1989. The satellites reportedly have a mass of 2,200–2,700 kg (4,900–6,000 lb), operating in near-geosynchronous orbits, using Inertial Upper Stages (IUS) to get from the shuttle's orbit to the higher geosynchronous orbit. [1] According to Jim Slade of ABC News, the second satellite, USA-48, replaced the first, USA-8, which after more than 4 years in orbit was running out of maneuvering fuel required for keeping its station over the Indian Ocean. The mission of the two satellites was to listen in to military and diplomatic communications from the Soviet Union, China, and neighbouring countries. [2]

USA-67 satellite

USA-67, launched aboard Space Shuttle Atlantis (OV-104) in November 1990 (STS-38 mission), was initially identified as a third Magnum satellite owing to the presence of two upper stages in orbit after its deployment, suggesting that an Inertial Upper Stage (IUS) had been used to deploy it. It was later determined that the second upper stage was from the stealthy Prowler spacecraft, and that USA-67 was a Satellite Data System (SDS-2) communications satellite. [3] [4]

Contractor

The Magnum satellites, built by TRW, are rumored to have large (estimated 100 m (330 ft) diameter) [5] [6] umbrella-like reflecting dishes to collect RF signals from Earth. The Magnum/Orion satellites replaced the older Rhyolite/Aquacade series of SIGINT satellites, and have themselves been succeeded by the Mentor/Advanced Orion satellites.

Satellites

Name COSPAR ID Launch date
(UTC)
Launch vehicleLaunch siteLongitudeRemarks
USA-8 1985-010B 24 January 1985
19:50:00
Space Shuttle Discovery
STS-51-C / IUS
KSC, LC-39A
USA-48 1989-090B 23 November 1989
00:23:00
Space Shuttle Discovery
STS-33 / IUS
KSC, LC-39B

Related Research Articles

STS-6 1983 NASA Space Shuttle mission

STS-6 was the sixth NASA Space Shuttle mission and the maiden flight of the Space ShuttleChallenger. Launched from Kennedy Space Center on 4 April 1983, the mission deployed the first Tracking and Data Relay Satellite, TDRS-1, into orbit, before landing at Edwards Air Force Base on 9 April. STS-6 was the first Space Shuttle mission during which a spacewalk was conducted, and hence was the first in which the Extravehicular Mobility Unit (EMU) was used.

STS-51-C 1985 Space Shuttle mission to deploy a classified payload

STS-51-C was the 15th flight of NASA's Space Shuttle program, and the third flight of Space Shuttle Discovery. It launched on 24 January 1985, and made the fourth shuttle landing at Kennedy Space Center, Florida, on 27 January 1985. STS-51-C was the first shuttle mission to deploy a dedicated United States Department of Defense (DoD) payload, and consequently many mission details remain classified.

STS-51-J 1985 Space Shuttle mission to deploy a classified payload

STS-51-J was the 21st NASA Space Shuttle mission and the first flight of Space Shuttle Atlantis. It launched from Kennedy Space Center, Florida, on 3 October 1985, carrying a payload for the U.S. Department of Defense, and landed at Edwards Air Force Base, California, on 7 October.

STS-26 Human spaceflight

STS-26 was the 26th NASA Space Shuttle mission and the seventh flight of the orbiter Discovery. The mission launched from Kennedy Space Center, Florida, on 29 September 1988, and landed four days later on 3 October. STS-26 was declared the "Return to Flight" mission, being the first mission after the Space Shuttle Challenger disaster of 28 January 1986. It was the first mission since STS-9 to use the original STS numbering system, the first to have all its crew members wear pressure suits for launch and landing since STS-4, and the first mission with bailout capacity since STS-4. STS-26 was also the first U.S. space mission with an all-veteran crew since Apollo 11, with all of its crew members having flown at least one prior mission.

STS-29

STS-29R was a NASA Space Shuttle mission, during which Space Shuttle Discovery inserted a Tracking and Data Relay Satellite (TDRS) into Earth orbit. It was the third shuttle mission following the Challenger disaster of 1986, and launched from Kennedy Space Center, Florida, on 13 March 1989. STS-29R was the eighth flight of Discovery and the 28th Space Shuttle mission overall; its planned predecessor, STS-28, was delayed until August 1989.

STS-33 1989 Space Shuttle mission to deploy a classified payload

STS-33R was a NASA Space Shuttle mission, during which Space Shuttle Discovery deployed a payload for the United States Department of Defense (DoD). It was the 32nd shuttle mission overall, the ninth flight of Discovery, the fifth shuttle mission in support of the DoD and the last Shuttle launch of the 1980s. Due to the nature of the mission, specific details remain classified. Discovery lifted off from Pad B, Launch Complex 39 at Kennedy Space Center (KSC), Florida, on 22 November 1989 at 7:23 pm EST; it landed at Edwards Air Force Base, California, on 28 November.

STS-38 1990 Space Shuttle mission to deploy a classified payload

STS-38 was a Space Shuttle mission by NASA using the Space Shuttle Atlantis. It was the 37th shuttle mission, and carried a classified payload for the U.S. Department of Defense. It was the 7th flight for Atlantis and the 7th flight dedicated to the Department of Defense. The mission was a 4-day mission that traveled more than 2 million miles and completed 79 revolutions. Atlantis landed at Kennedy Space Center's Shuttle Landing Facility's runway 33. The launch was originally scheduled for July 1990, but was rescheduled due to a hydrogen leak found on Space ShuttleColumbia during the STS-35 countdown. During a rollback to the Orbiter Processing Facility Atlantis was damaged during a hail storm. The eventual launch date of 15 November 1990 was set due to a payload problem. The launch window was between 18:30 and 22:30 EST. The launch occurred at 18:48 EST.

STS-43

STS-43, the ninth mission for Space Shuttle Atlantis, was a nine-day mission whose primary goal was launching the fourth Tracking and Data Relay Satellite, TDRS-E. The flight also tested an advanced heatpipe radiator for potential use on the then-future space station and conducted a variety of medical and materials science investigations.

STS-44 1991 Space Shuttle mission to deploy an unclassified military payload

STS-44 was a Space Shuttle mission using Atlantis that launched on 24 November 1991. It was a U.S. Department of Defense space mission.

STS-70 1995 Space Shuttle mission to deploy a Tracking and Data Relay Satellite (TDRS)

STS-70 was the 21st flight of the Space Shuttle Discovery, and the last of 7 shuttle missions to carry a Tracking and Data Relay Satellite (TDRS). This was the first shuttle mission controlled from the new mission control center room at the Johnson Space Center in Houston. STS-70 was also the first flight of the new Block 1 orbiter main engine, designed to improve both engine performance and safety. The mission was launched from Kennedy Space Center in Florida on 13 July 1995, only six days after the landing of sister ship Atlantis, marking the fastest turnaround between flights in the history of the program.

Defense Support Program

The Defense Support Program (DSP) is a program of the United States Space Force that operated the reconnaissance satellites which form the principal component of the Satellite Early Warning System used by the United States.

Aquacade, previously designated Rhyolite, was a class of SIGINT spy satellites operated by the National Reconnaissance Office for the United States Central Intelligence Agency. The National Security Agency (NSA) was also reportedly involved. The program, also known by SIGAD AFP-720 and SIGAD AFP-472, respectively, is still classified. During the same period, the Canyon SIGINT satellites were in use with an apparently somewhat different set of capabilities.

Inertial Upper Stage

The Inertial Upper Stage (IUS), originally designated the Interim Upper Stage, was a two-stage, solid-fueled space launch system developed by Boeing for the United States Air Force beginning in 1976 for raising payloads from low Earth orbit to higher orbits or interplanetary trajectories following launch aboard a Titan 34D or Titan IV rocket as its upper stage, or from the payload bay of the Space Shuttle as a space tug.

Orion (satellite)

Orion, also known as Mentor or Advanced Orion, is a class of United States spy satellites that collect signals intelligence (SIGINT) from space. Operated by the National Reconnaissance Office (NRO) and developed with input from the Central Intelligence Agency (CIA), eight have been launched from Cape Canaveral on Titan IV and Delta IV launch vehicles since 1995.

TDRS-B

TDRS-B was an American communications satellite, of first generation, which was to have formed part of the Tracking and Data Relay Satellite System. It was destroyed in 1986 when the Space ShuttleChallenger disintegrated 73 seconds after launch.

TDRS-5

TDRS-5, known before launch as TDRS-E, is an American communications satellite, of first generation, which is operated by NASA as part of the Tracking and Data Relay Satellite System. It was constructed by TRW is based on a custom satellite bus which was used for all seven first generation TDRS satellites.

TDRS-3

TDRS-3, known before launch as TDRS-C, is an American communications satellite, of first generation, which is operated by NASA as part of the Tracking and Data Relay Satellite System. It was constructed by TRW, and is based on a custom satellite bus which was used for all seven first generation TDRS satellites.

TDRS-6

TDRS-6, known before launch as TDRS-F, is an American communications satellite, of first generation, which is operated by NASA as part of the Tracking and Data Relay Satellite System. It was constructed by TRW, and is based on a custom satellite bus which was used for all seven first generation TDRS satellites.

TDRS-7

TDRS-7, known before launch as TDRS-G, is an American communications satellite, of first generation, which is operated by NASA as part of the Tracking and Data Relay Satellite System. It was constructed by TRW as a replacement for TDRS-B, which had been lost in the Challenger accident, and was the last first generation TDRS satellite to be launched.

Prowler was an American reconnaissance satellite launched aboard Space ShuttleAtlantis in 1990 in order to study Soviet satellites in geosynchronous orbit. The government of the United States has never acknowledged its existence, however it has been identified by amateur observers and through leaked information.

References

  1. Jonathan's space report No. 369 Archived 2009-06-19 at the Wayback Machine (1998-08-22)
  2. Slade, Jim (22 November 1989). "ABC News Coverage of the STS-33 Launch". ABC News.
  3. Molczan, Ted (21 January 2011). "Unknown GEO Object 2000-653A / 90007 Identified as Prowler" (PDF). Satellite Observer. Retrieved 9 April 2012.
  4. Molczan, Ted (19 February 2011). "Evaluation of the Opportunity to Launch Prowler on STS 38" (PDF). Satellite Observer. Retrieved 9 April 2012.
  5. Cassutt, Michael (1 August 2009). "Secret Space Shuttles: When you're 200 miles up, it's easy to hide what you're up to". Air & Space Magazine.
  6. Spy satellites of the NSA (fr)

Further reading