Delta IV M+(4,2) | NROL-22

Delta IV M+(4,2) | NROL-22

Space Launch Complex 6
Vandenberg SFB, CA, USA

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United States Air Force

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NROL-22 (Trumpet 4)

These spacecraft are probably the replacement for the Trumpet SIGINT satellites operating in a Molniya orbit. As no name is known, these are referred here as "Trumpet Follow On". Possibly these satellites might be named Raven. These satellite most likely use a large, unfurlable dish antenna to collect the signals. Advances in both antenna and electronics technologies have allowed for a large reduction in size compared the Trumpet predecessors.

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Delta IV M+(4,2)


Height 66.20 Meters

Max Stages 2

Mass To GTO 6270 kg

Liftoff Thrust 4200 kN

Diameter 5.00 Meters

Mass To LEO 11920 kg

Liftoff Mass 292 Tonnes


Launch Success 15

Consecutive Success 15

Maiden Flight Unknown

Launch Failures 0


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