Declassified Footage Reveals US Spy Satellite's Decades-Long Arctic Watch
In a move to shed new light on the country's Cold War-era surveillance efforts, the National Reconnaissance Office (NRO) has released previously classified images and details of its first-generation spy satellite program, codenamed Jumpseat.
The NRO stated that the Jumpseat satellites were designed to monitor the Soviet Union's military communication signals in a highly elliptical orbit, dubbed "Highly Elliptical Orbit" or HEO. The programme was launched from 1971 through 1987 and operated until 2006.
According to the declassified documents, the satellites carried two main antennas - one a 13-foot antenna that could intercept foreign radio transmissions, and another a smaller 7-foot antenna used for downlinking data back to US ground stations.
Satellites in this orbit, often referred to as Molniya orbits, are capable of reaching apogee over the far Northern Hemisphere, where they loitered for most of their 12-hour loop around Earth. This trajectory gave Jumpseat satellites persistent coverage over the Arctic and Soviet Union.
The programme's historical significance was underscored by James Outzen, NRO director of the Center for the Study of National Reconnaissance. The author noted that "the orbit provided the US a new vantage point for collecting signals intelligence from space".
Jumpseat's operational history is also intertwined with the development of Project Earpop, a joint Air Force-NRO initiative.
The release comes as part of an effort to shed more light on US spy satellite programs declassified in recent years. Last year, it was revealed that the CIA had been operating Corona, a series of high-resolution photo reconnaissance satellites during the Cold War era.
In a move to shed new light on the country's Cold War-era surveillance efforts, the National Reconnaissance Office (NRO) has released previously classified images and details of its first-generation spy satellite program, codenamed Jumpseat.
The NRO stated that the Jumpseat satellites were designed to monitor the Soviet Union's military communication signals in a highly elliptical orbit, dubbed "Highly Elliptical Orbit" or HEO. The programme was launched from 1971 through 1987 and operated until 2006.
According to the declassified documents, the satellites carried two main antennas - one a 13-foot antenna that could intercept foreign radio transmissions, and another a smaller 7-foot antenna used for downlinking data back to US ground stations.
Satellites in this orbit, often referred to as Molniya orbits, are capable of reaching apogee over the far Northern Hemisphere, where they loitered for most of their 12-hour loop around Earth. This trajectory gave Jumpseat satellites persistent coverage over the Arctic and Soviet Union.
The programme's historical significance was underscored by James Outzen, NRO director of the Center for the Study of National Reconnaissance. The author noted that "the orbit provided the US a new vantage point for collecting signals intelligence from space".
Jumpseat's operational history is also intertwined with the development of Project Earpop, a joint Air Force-NRO initiative.
The release comes as part of an effort to shed more light on US spy satellite programs declassified in recent years. Last year, it was revealed that the CIA had been operating Corona, a series of high-resolution photo reconnaissance satellites during the Cold War era.