P-801 1, ..., 7

The P-801 (or Program 801) satellites were a special series of subsatellites.

Originally these satellites were thought to be another variety among the so called "Subsatellite Ferrets", low orbit ELINT/SIGINT satellites to pinpoint and characterize different Radar emitters in the Soviet Union and Warsaw pact states. Before their program name was known, they are referred to as "Subsatellite Ferret C" (SSF-C), although it turned out, that they did not have a SIGINT mission. Reportedly these satellites carried a store-dump communication payload associated with the State Department and used to communicate with secret agents using small suitcases transceivers. These satellites have been built on the P-11 bus, but with different solar arrays.

The P-801 type satellites operated from a higher orbit (1200–1400 km at about 80.3° to 96.9°) than the P-11 SIGINT satellites.

Reportedly the P-801 type subsatellites were used in conjunction under the code name Yield and later Willow with the large Jumpseat SIGINT satellites, which operated from Molniya-orbits. Possibly the Jumpseats also carried store-dump payloads to supplement P-801.

These subsatellites were deployed from the propulsion rack of the Agena-D stage of KH-4A Corona, KH-4B Corona reconnaissance satellites and racks mounted on the KH-9 Hexagon reconnaissance satellites. They used two solid-fuel kick-motors to maneuver themselves into their operational orbits after deployment.

A satellite with a similar orbit is P-226 1, which might represent an modified version or just a new designation.