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Potok
Part of KAUR-4 Family
Cosmos 2291
Cosmos 2291
Credit: Manufacturer Image
Russian military communications satellite. Potok was one element of the second generation global command and control system (GKKRS) developed according to a decree of 17 February 1976. Military relay satellite built by NPO Prikladnoi Mekhaniki (NPO PM), Russia. Launched 1982 - 2000.

AKA: 11F663;Geizer;Geyzer;Sokol. Status: Operational 1982. First Launch: 1982-05-17. Last Launch: 2000-07-04. Number: 10 . Gross mass: 2,100 kg (4,600 lb).

The first of ten spacecraft was launched as Cosmos 1366 in 1982. These satellites were integrated with the Luch geostationary system and featured retransmission of high rate data retransmission in the centimeter wavelength range. While Luch handled communications between spacecraft and ground stations, Potok handled communications between fixed points and digital data from the Yantar-4KS1 electroptical reconnaissance satellite. Potok was the first communications spacecraft built by the Lavochkin design bureau. The Slav-2 and Sintez transponders aboard Potok were developed by G Ya Guskov at NPO Elas.

Potok was said by one account to have utilized the KAUR-4 spacecraft bus. This had an active 3-axis orientation system, with a single central body from which extended 40 square meters of solar panels. Its basic structure was that of the KAUR-3, but it was equipped with completely new systems: a digital computer, plasma station-keeping engines, hydrazine monopropellant orientation engines, and actively-scanned antennae arrays with 0.5 degrees antenna and 0.1 degree spacecraft pointing accuracy.

Potok transponders utilized a unique, hexagonal phased-array antenna. The principal ground stations for the Potok system were located at Nakhodka and in the Moscow region at Konakovo. From Geyser spacecraft positioned at 80 degrees E and 13.5 degrees W, the Potok system was designed for digital data transmissions in C-band. A third geosynchronous slot at 168 degrees West was never used. Mobile and stationary transmitter/receiver stations were used with antenna diameters of 2.6-3 m as well as compact phased-array antennas. In 1992 Russian officials offered the Geyser-Potok system for commercial international use under the name Sokol.


More at: Potok.

Family: Communications, Geosynchronous orbit, Military communications sat. Country: Russia. Engines: SPT-70. Launch Vehicles: Proton, Proton-K/DM, Proton-K/DM-2. Launch Sites: Baikonur, Baikonur LC81/23, Baikonur LC200/40, Baikonur LC200/39. Agency: RVSN, Reshetnev bureau. Bibliography: 102, 112, 2, 274, 450, 474, 552, 554, 6, 67, 6789, 12970.

1976 February 17 - .
  • Energia; Buran; Mir; Luch; Potok approved; N1 formally cancelled. - . Nation: Russia. Spacecraft: Buran, Gamma, Luch, Mir, Mir-2, Potok.

    Central Committee of the Communist Party and Council of Soviet Ministers Decree 'On work on Energia-Buran, DOS-7K nos. 7 and 8, Gamma. Geyzer (Potok), and Altair (Luch) and cancellation of the N1' was issued. The design of an improved model of the Salyut DOS-17K space station was authorised as part of the third generation of Soviet space systems in a decree. At that time it was planned that the two stations (DOS-7 and DOS-8) would be equipped with two docking ports at either end of the station and an additional two ports at the sides of the forward small diameter compartment. Luch and Potok were elements of the second generation global command and control system (GKKRS) deployed in the first half of the 1980's. Luch satellites, analogous to the US TDRS, provided communications service to the Mir space station, Buran space shuttle, Soyuz-TM spacecraft, military satellites, and the TsUPK ground control center. They also served to provide mobile fleet communications for the Soviet Navy. Additional Details: here....


1982 May 17 - . 23:50 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/39. LV Family: Proton. Launch Vehicle: Proton-K/DM.
  • Cosmos 1366 - . Payload: Potok no. 1 s/n 11L. Mass: 2,000 kg (4,400 lb). Nation: Russia. Agency: MOM. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-4. Spacecraft: Potok. Completed Operations Date: 1987-10-30 . USAF Sat Cat: 13177 . COSPAR: 1982-044A. Apogee: 35,805 km (22,248 mi). Perigee: 35,777 km (22,230 mi). Inclination: 13.7000 deg. Period: 1,436.30 min.

    Stationed at 80 deg E. Investigation of outer space; experiments in relaying telegraph and telephone information in the centimetre wavelength range. Positioned in geosynchronous orbit at 80 deg E in 1982-1987 As of 4 September 2001 located at 81.31 deg E drifting at 0.033 deg E per day. As of 2007 Mar 11 located at 68.65E drifting at 0.023E degrees per day.


1984 March 2 - . 03:54 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/40. LV Family: Proton. Launch Vehicle: Proton-K/DM.
  • Cosmos 1540 - . Payload: Potok no. 2 s/n 12L. Mass: 2,000 kg (4,400 lb). Nation: Russia. Agency: MOM. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-4. Spacecraft: Potok. Completed Operations Date: 1988-02-05 . USAF Sat Cat: 14783 . COSPAR: 1984-022A. Apogee: 35,807 km (22,249 mi). Perigee: 35,761 km (22,220 mi). Inclination: 8.1000 deg. Period: 1,436.00 min.

    Stationed at 79 deg E. Investigation of outer space; experiments in relaying telegraph and telephone information in the centimetre wavelength range. Positioned in geosynchronous orbit at 80 deg E in 1984-1988 As of 28 August 2001 located at 75.35 deg E drifting at 0.041 deg E per day. As of 2007 Mar 10 located at 69.92E drifting at 0.020W degrees per day.


1986 April 4 - . 03:45 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/40. LV Family: Proton. Launch Vehicle: Proton-K/DM.
  • Cosmos 1738 - . Payload: Potok no. 3 s/n 13L. Mass: 2,000 kg (4,400 lb). Nation: Russia. Agency: MOM. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-4. Spacecraft: Potok. Completed Operations Date: 1989-04-07 . USAF Sat Cat: 16667 . COSPAR: 1986-027A. Apogee: 35,847 km (22,274 mi). Perigee: 35,712 km (22,190 mi). Inclination: 5.6000 deg. Period: 1,435.70 min.

    Stationed at 13.5 deg W. Continuation of the investigation of outer space; experimental retransmission of telephone and telegraph data in the centimetre band. Positioned in geosynchronous orbit at 14 deg W in 1986-1989 As of 3 September 2001 located at 0.26 deg W drifting at 0.077 deg E per day. As of 2007 Mar 9 located at 55.28W drifting at 0.287W degrees per day.


1987 October 1 - . 17:09 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/39. LV Family: Proton. Launch Vehicle: Proton-K/DM-2.
  • Cosmos 1888 - . Payload: Potok no. 4 s/n 15L. Mass: 2,000 kg (4,400 lb). Nation: Russia. Agency: MOM. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-4. Spacecraft: Potok. Completed Operations Date: 1994-09-01 . USAF Sat Cat: 18384 . COSPAR: 1987-084A. Apogee: 35,804 km (22,247 mi). Perigee: 35,772 km (22,227 mi). Inclination: 4.0000 deg. Period: 1,436.20 min.

    Stationed at 80 deg E; later moved to 13.5 deg W. Communications experiments. Investigation of outer space; relaying of telephone and telegraph information. Positioned in geosynchronous orbit at 80 deg E in 1987-1990; 14 deg W in 1990-1994 As of 3 September 2001 located at 1.75 deg E drifting at 0.093 deg E per day. As of 2007 Mar 9 located at 68.17W drifting at 0.344W degrees per day.


1988 August 1 - . 21:04 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/39. LV Family: Proton. Launch Vehicle: Proton-K/DM-2.
  • Cosmos 1961 - . Payload: Potok no. 5 s/n 16L. Mass: 2,000 kg (4,400 lb). Nation: Russia. Agency: MOM. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-4. Spacecraft: Potok. Completed Operations Date: 1993-12-15 . USAF Sat Cat: 19344 . COSPAR: 1988-066A. Apogee: 35,796 km (22,242 mi). Perigee: 35,780 km (22,230 mi). Inclination: 8.6000 deg. Period: 1,436.20 min.

    Stationed at 13.5 deg W; later moved to 80 deg E. Investigation of outer space and relay of telegraph and telephone messages. Positioned in geosynchronous orbit at 14 deg W in 1988-1992; 80 deg E in 1992-1993. In September, 1993, Cosmos 1961 began drifting off station after a mission of five years had apparently been terminated. As of 4 September 2001 located at 80.01 deg E drifting at 0.015 deg W per day. As of 2007 Mar 11 located at 74.58E drifting at 0.039E degrees per day.


1990 July 18 - . 21:46 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/39. LV Family: Proton. Launch Vehicle: Proton-K/DM-2.
  • Cosmos 2085 - . Payload: Potok no. 6 s/n 17L. Mass: 2,150 kg (4,730 lb). Nation: Russia. Agency: MOM. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-4. Spacecraft: Potok. Completed Operations Date: 1995-01-01 . USAF Sat Cat: 20693 . COSPAR: 1990-061A. Apogee: 35,790 km (22,230 mi). Perigee: 35,785 km (22,235 mi). Inclination: 1.5000 deg. Period: 1,436.20 min.

    Stationed at 80 deg E. Relaying of telegraph and telephone information. Positioned in geosynchronous orbit at 80 deg E in 1990-1994 As of 29 August 2001 located at 71.92 deg E drifting at 0.041 deg W per day. As of 2007 Mar 10 located at 79.57E drifting at 0.022W degrees per day.


1991 November 22 - . 13:27 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/23. LV Family: Proton. Launch Vehicle: Proton-K/DM-2.
  • Cosmos 2172 - . Payload: Potok no. 7 s/n 18L. Mass: 2,150 kg (4,730 lb). Nation: Russia. Agency: MOM. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-4. Spacecraft: Potok. Completed Operations Date: 1995-11-01 . USAF Sat Cat: 21789 . COSPAR: 1991-079A. Apogee: 35,798 km (22,243 mi). Perigee: 35,776 km (22,230 mi). Inclination: 0.3000 deg. Period: 1,436.20 min.

    Stationed at 13 deg W. Relaying of telegraph and telephone information. Positioned in geosynchronous orbit at 14 deg W in 1991-1995 As of 1 September 2001 located at 7.91 deg W drifting at 0.026 deg E per day. As of 2007 Mar 9 located at 39.91W drifting at 0.204W degrees per day.


1994 September 21 - . 17:53 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/39. LV Family: Proton. Launch Vehicle: Proton-K/DM-2.
  • Cosmos 2291 - . Payload: Potok no. 8 s/n 19L. Mass: 2,300 kg (5,000 lb). Nation: Russia. Agency: MOM. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-4. Spacecraft: Potok. USAF Sat Cat: 23267 . COSPAR: 1994-060A. Apogee: 35,829 km (22,263 mi). Perigee: 35,774 km (22,228 mi). Inclination: 4.5000 deg. Period: 1,436.90 min.

    Cosmos 2291 quickly moved to 80 degrees E, joining Cosmos 2085 as a replacement for Cosmos1961. Thus, at the end of 1994 the Potok constellation had been restored to its normal 4·sateellite complement: Cosmos 2085 and 2291 at 80 degrees E and Cosmos 1888 and 2172 at 13.5 degrees W. Cosmos 2291 continued at 80 deg E in 1994-1995; then it was moved to 14 deg W in 1995-1999 As of 6 September 2001 located at 62.64 deg W drifting at 0.324 deg W per day. As of 2007 Mar 10 located at 112.35W drifting at 0.417W degrees per day.


1995 August 30 - . 19:33 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/39. LV Family: Proton. Launch Vehicle: Proton-K/DM-2.
  • Cosmos 2319 - . Payload: Potok no. 9 s/n 20L. Mass: 2,300 kg (5,000 lb). Nation: Russia. Agency: MOM. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-4. Spacecraft: Potok. USAF Sat Cat: 23653 . COSPAR: 1995-045A. Apogee: 35,837 km (22,268 mi). Perigee: 35,775 km (22,229 mi). Inclination: 3.8000 deg. Period: 1,437.10 min.

    Stationed at 80 deg E. Relaying of telegraph and telephone information. Positioned in geosynchronous orbit at 80 deg E in 1995-1999 As of 31 August 2001 located at 16.12 deg W drifting at 0.037 deg W per day. As of 2007 Mar 5 located at 17.95W drifting at 0.052W degrees per day.


2000 July 4 - . 23:44 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/39. LV Family: Proton. Launch Vehicle: Proton-K/DM-2.
  • Cosmos 2371 - . Payload: Geyzer. Mass: 2,400 kg (5,200 lb). Nation: Russia. Agency: MO. Manufacturer: Reshetnev bureau. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-4. Spacecraft: Potok. Completed Operations Date: 2000-07-05 . USAF Sat Cat: 26394 . COSPAR: 2000-036A. Apogee: 35,802 km (22,246 mi). Perigee: 35,776 km (22,230 mi). Inclination: 8.6000 deg. Period: 1,436.20 min.

    Second flight using RD-0210 Phase 2 engines. Geizer military communications satellite. The Blok DM upper stage inserted the Geizer into geosynchronous orbit at 06:20 GMT on July 5. Stationed at 80 deg E. Positioned in geosynchronous orbit at 80 deg E in 2000. As of 6 September 2001 located at 79.81 deg E drifting at 0.014 deg E per day. As of 2007 Mar 10 located at 79.73E drifting at 0.022W degrees per day.



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