Poppy (satellite)

The existence of the POPPY program was declassified by the NRO in September 2005, although most of the details about its capabilities and operation are still classified.

[3] Ammonia microthrusters were used for station keeping in order to maintain the orbital configuration of the POPPY constellation.

Known POPPY ground stations were located in Adak, AK, Lajes Field, Azores, Portugal, Edzell, Scotland, and Todendorf, Germany.

[5] Among POPPY's tasks was the detection of signals originating from Soviet early warning radars located along the coastal regions of the USSR.

In the operations building at each ground station, the recorded signals were analysed using Sonographs and Spectrum analyzers, and then compared with already known Emitter Library Notations (ELNOT).