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P-11 4401, ..., 4429

P-11 (Type 2) ? [USAF]

The satellites were the second series of so called "Subsatellite Ferrets", low orbit ELINT/SIGINT satellites to pinpoint and characterize different Radar emitters in the Soviet Union and Warsaw pact states. As the proper name of these satellite has not been disclosed yet, they are referred to as "Subsatellite Ferret B" (SSF-B).

These subsatellites were deployed from the propulsion rack of the Agena-D stage of KH-7 Gambit-1, KH-4A Corona and KH-4B Corona reconnaissance satellites and racks mounted on the KH-9 Hexagon reconnaissance satellites. They used a solid-fuel kick-motor to maneuver themselves into their operational orbits after deployment.

The satellites contained each one or two focused payload black boxes and might have differed in design. These satellites featured different antenna configurations like spool-up antennasa and “window shade antennas”, which were spiral antenna patterns cut or printed onto a thin piece of metal fabric that rolled up. P-11 4411 and 4417 have been featuring two-meter diameter parabolic dish antennas, 4420 had 1-meter and 0.5-meter dishes.

Nation: USA
Type / Application: ELINT, SIGINT
Operator: USAF
Contractors: Lockheed
Equipment: ?
Configuration: mod. P-11 bus
Propulsion: Kick motor
Power: Solar cells, batteries
Lifetime:
Mass: ?
Orbit:
Satellite COSPAR Date LS Launch Vehicle Remarks
P-11 4401 (OPS 6717) 1965-031B 28.04.1965 Va PALC-2-4 Atlas-SLV3 Agena-D with KH-7 17
P-11 4402 (OPS 6749) 1965-050A 25.06.1965 Va PALC-2-4 Atlas-SLV3 Agena-D with KH-7 19
P-11 4403 (OPS 6761) 1965-062B 03.08.1965 Va PALC-2-4 Atlas-SLV3 Agena-D with KH-7 21
P-11 4404 (OPS 6785) 1966-039B 14.05.1966 Va PALC-2-4 Atlas-SLV3 Agena-D with KH-7 28
P-11 4405 (OPS 6810) 1966-074B 16.08.1966 Va SLC-4E Atlas-SLV3 Agena-D with KH-7 31
P-11 4406 (OPS 6874) 1966-083B 16.09.1966 Va SLC-4E Atlas-SLV3 Agena-D with KH-7 32
P-11 4407 (OPS 1807) 1969-082A 30.09.1969 Va SLC-1W Thorad-SLV2G Agena-D with Poppy 6A, Poppy 6B, Poppy 6C, Poppy 6D, Timation 2, Tempsat 2, SOICAL Cone, SOICAL Cylinder, NRL-PL 176
P-11 4408 (OPS 1967) 1967-043B 09.05.1967 Va SLC-1E p Thorad-SLV2G Agena-D with KH-4A 41
P-11 4409 (OPS 1873) 1967-062B 16.06.1967 Va SLC-1W Thorad-SLV2G Agena-D with KH-4A 42
P-11 4410 (OPS 1587) 1967-109B 02.11.1967 Va SLC-1E Thorad-SLV2G Agena-D with KH-4A 44
P-11 4411 (OPS 7076) 1968-020B 14.03.1968 Va SLC-1E Thorad-SLV2G Agena-D with KH-4A 46
P-11 4412 (OPS 6236) 1968-008B 24.01.1968 Va SLC-1E Thorad-SLV2G Agena-D with KH-4A 45
P-11 4413 (OPS 8595) 1968-078B 18.09.1968 Va SLC-1E Thorad-SLV2G Agena-D with KH-4A 48
P-11 4414 - not launched Va with ?
P-11 4415 - not launched Va with ?
P-11 4416 - not launched Va with ?
P-11 4417 (OPS 1721) 1969-041B 02.05.1969 Va SLC-3W Thorad-SLV2G Agena-D with KH-4A 51
P-11 4418 (OPS 2285) 1969-026B 19.03.1969 Va SLC-3W Thorad-SLV2G Agena-D with KH-4A 50
P-11 4419 (OPS 4710) 1969-079B 22.09.1969 Va SLC-3W Thorad-SLV2G Agena-D with KH-4A 52
P-11 4420 (OPS 5259) 1968-052B 20.06.1968 Va SLC-1E Thorad-SLV2G Agena-D with KH-4A 47
P-11 4421 (OPS 8520) 1970-040B 20.05.1970 Va SLC-3W Thorad-SLV2H Agena-D with KH-4B 10
P-11 4422 (OPS 3402) 1970-016B 04.03.1970 Va SLC-3W Thorad-SLV2H Agena-D with KH-4B 9
P-11 4423 (OPS 6829) 1970-098B 18.11.1970 Va SLC-3W Thorad-SLV2H Agena-D with KH-4B 12
P-11 4424 (OPS 7719) 1972-002D 20.01.1972 Va SLC-4E Titan-3D with KH-9 2
P-11 4425 (OPS 7803) 1972-052C 07.07.1972 Va SLC-4E Titan-3D with KH-9 3
P-11 4426 (OPS 7705) 1973-088C 10.11.1973 Va SLC-4E Titan-3D with KH-9 7, P-801 5
P-11 4427 (OPS 7681) 1971-076B 10.09.1971 Va SLC-3W Thorad-SLV2H Agena-D with KH-4B 15
P-11 4428 (OPS 4547) 1974-020C 10.04.1974 Va SLC-4E Titan-3D with KH-9 8, IRCB
P-11 4429 (OPS 6239) 1974-085B 29.10.1974 Va SLC-4E Titan-3D with KH-9 9, S3 1

References: