Trumpet (satellite)

DNI depiction of a NRO SIGINT satellite obtaining data on Western Europe

TRUMPET (also known as JEROBOAM), called Advanced Jumpseat by some observers, is reportedly a codename for a series of ELINT reconnaissance satellites launched by the United States during the 1990s to replace the Jumpseat satellites. Speculated to weigh 5,200 kg, three of these satellites were launched into highly elliptical orbits by Titan 4 launch vehicles from Cape Canaveral between 1994 and 1997. Their precise mission and capabilities are classified. News reports state that the satellites monitor radio communication using antennas with diameters of 150 m. It is speculated that the satellites are manufactured by Boeing.

Design

According to NASA's National Space Science Data Center, Trumpet SIGINT satellites have a large deployable mesh antenna, and were initially aimed at monitoring Soviet communications and missile tests. Trumpet 5 is allegedly the second satellite of a new series. Its tasks are believed to be signals intelligence and early warning, using a SBIRS HEO-2 infrared missile early warning package. In addition it is supposed to carry a NASA/Los Alamos TWINS-B magnetospheric research payload.

Launches

Name	Launch date	Alternative name	COSPAR ID	Launch vehicle	Orbit
Trumpet 1	3 May 1994	USA-103	1994-026A	Titan IV
Trumpet 2	10 July 1995	USA-112	1995-034A	Titan IV
Trumpet 3	8 November 1997	USA-136	1997-068A	Titan 4A
Trumpet 4	28 June 2006	USA-184	2006-027A	Delta IV
Trumpet 5	13 March 2008	USA-200	2008-010A	Atlas V 411	1,112 km x 35,780 km, i=63.6°

Cost

In 1994, the cost of Trumpet 1 (excluding launch vehicle) were estimated to more than US$ 1.5 billion (inflation adjusted more than US$ 2.4 billion in 2012).

See also

• Jonathan's Space Report

External links

• Trumpet SIGINT at Encyclopedia Astronautica