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This series of satellites is likely a new series of geostationary ELINT/SIGINT satellites.

Likely they consist of a large antenna and are three axis stabilized. Leaked NRO bugets documents identfy the SHARP (SIGINT High Altitude Replenishment Program) program, which could also be a possibility for this payload. These satellites might otherwise represent a next generation of the Orion satellites. Another possibility is a geostationary version of the 'Trumpet-F/O-1' series.

Nation: USA
Type / Application: SIGINT, ELINT, COMINT ?
Operator: USAF
Contractors: ?
Equipment: ?
Configuration: Large Dish Antenna, 3-Axis-Stabilization
Propulsion: ?
Mass: 3400 kg - 3850 kg
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
SHARP 1 ? (USA 250, NROL 67) 2014-020A 10.04.2014 CC LC-41 Atlas-5(541)
Further high orbit SIGINT missions:

Geostationary orbit COMINT (Canyon-Chalet-Vortex-Mercury series) Geostationary orbit SIGINT (Rhyolite-Aquacade-Magnum-Orion series) High elliptical orbit SIGINT (Jumpseat-Trumpet series) Other high orbit SIGINT