Oko-2 - 14,953 bytes. 212 x 266 pixels.

Missile early warning.

Covered Oko constellation plane 3 - 355 degree longitude of ascending node.

Replaced Cosmos 520. Covered Oko constellation plane 3 - 359 degree longitude of ascending node.

Covered Oko constellation plane 2 - 315 degree longitude of ascending node.

Covered Oko constellation planes 7/8 - 182 degree longitude of ascending node.

Covered Oko constellation plane 5 - 86 degree longitude of ascending node.

Covered Oko constellation plane 7 - 163 degree longitude of ascending node.

Covered Oko constellation plane 9 - 245 degree longitude of ascending node.

Replaced Cosmos 665. Covered Oko constellation plane 2 - 323 degree longitude of ascending node.

Replaced Cosmos 931. Covered Oko constellation plane 2 - 323 degree longitude of ascending node.

Covered Oko constellation plane 4 - 39 degree longitude of ascending node.

Covered Oko constellation plane 9 - 237 degree longitude of ascending node.

Replaced Cosmos 1030. Covered Oko constellation plane 4 - 36 degree longitude of ascending node.

Left in parking orbit. Decay date suspect Investigation of the upper atmosphere and outer space. Was intended to cover Oko constellation plane 9 - 241 degree longitude of ascending node.

Replaced Cosmos 1109. Covered Oko constellation plane 9 - 240 degree longitude of ascending node.

Replaced Cosmos 1024. Covered Oko constellation plane 2 - 319 degree longitude of ascending node.

Replaced Cosmos 1124. Covered Oko constellation plane 4 - 39 degree longitude of ascending node.

Replaced Cosmos 1188. Covered Oko constellation plane 2 - 316 degree longitude of ascending node.

Replaced Cosmos 903. Covered Oko constellation planes 7/8 - 177 degree longitude of ascending node.

Covered Oko constellation plane 5 - 77 degree longitude of ascending node. First space launch from LC16/2, which had been cannabalised in the 1960's to reconstruct LC31 at Baikonur after the on-pad explosion of the second Soyuz in December 1966.

Covered Oko constellation plane 6 - 115 degree longitude of ascending node.

Covered Oko constellation plane 3 - 357 degree longitude of ascending node.

Replaced Cosmos 1261. Covered Oko constellation plane 6 - 116 degree longitude of ascending node.

Covered Oko constellation plane 8 - 196 degree longitude of ascending node.

Replaced Cosmos 1247. Covered Oko constellation plane 5 - 79 degree longitude of ascending node.

Replaced Cosmos 1172. Covered Oko constellation plane 9 - 236 degree longitude of ascending node.

Covered Oko constellation plane 1 - 276 degree longitude of ascending node.

Replaced Cosmos 1223. Covered Oko constellation plane 7 - 154 degree longitude of ascending node.

Replaced Cosmos 1217. Covered Oko constellation plane 2 - 317 degree longitude of ascending node.

Replaced Cosmos 1191. Covered Oko constellation plane 4 - 37 degree longitude of ascending node.

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Oko EW satellite - Early Warning satellite placed in Molniya high-apogee orbits. Credit: © Mark Wade. 5,905 bytes. 129 x 160 pixels.

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Replaced Cosmos 1341. Covered Oko constellation plane 5 - 72 degree longitude of ascending node.

Replaced Cosmos 1278. Covered Oko constellation plane 3 - 355 degree longitude of ascending node.

Replaced Cosmos 1382. Covered Oko constellation plane 7 - 154 degree longitude of ascending node.

Replaced Cosmos 1518. Covered Oko constellation plane 5 - 74 degree longitude of ascending node.

Replaced Cosmos 1317. Covered Oko constellation plane 8 - 194 degree longitude of ascending node.

Replaced Cosmos 1456. Covered Oko constellation plane 4 - 35 degree longitude of ascending node.

Replaced Cosmos 1348. Covered Oko constellation plane 9 - 238 degree longitude of ascending node.

Replaced Cosmos 1367. Covered Oko constellation plane 1 - 274 degree longitude of ascending node.

Replaced Cosmos 1481. Covered Oko constellation plane 6 - 114 degree longitude of ascending node.

Covered Oko constellation plane 1 - 275 degree longitude of ascending node.

Replaced Cosmos 1581. Covered Oko constellation plane 8 - 195 degree longitude of ascending node.

Replaced Cosmos 1586. Covered Oko constellation plane 4 - 35 degree longitude of ascending node.

Replaced Cosmos 1401. Covered Oko constellation plane 2 - 314 degree longitude of ascending node.

Replaced Cosmos 1541. Covered Oko constellation plane 3 - 351 degree longitude of ascending node.

Replaced Cosmos 1675. Covered Oko constellation plane 8 - 192 degree longitude of ascending node.

Replaced Cosmos 1569. Covered Oko constellation plane 5 - 75 degree longitude of ascending node.

Replaced Cosmos 1698. Covered Oko constellation plane 3 - 354 degree longitude of ascending node.

Replaced Cosmos 1547. Covered Oko constellation plane 7 - 156 degree longitude of ascending node.

Unusable orbit. Was intended to cover Oko constellation plane 1 - 272 degree longitude of ascending node.

Replaced Cosmos 1596. Covered Oko constellation plane 9 - 233 degree longitude of ascending node.

Replaced Cosmos 1687. Covered Oko constellation plane 2 - 313 degree longitude of ascending node.

Replaced Cosmos 1729. Covered Oko constellation plane 5 - 73 degree longitude of ascending node.

Covered Oko constellation plane 1 - 274 degree longitude of ascending node.

Covered Oko constellation plane 6 - 113 degree longitude of ascending node.

Covered Oko constellation plane 8 - 196 degree longitude of ascending node.

Covered Oko constellation plane 5 - 75 degree longitude of ascending node.

Covered Oko constellation plane 3 - 355 degree longitude of ascending node.

Covered Oko constellation plane 7 - 157 degree longitude of ascending node.

Covered Oko constellation plane 6 - 116 degree longitude of ascending node.

Covered Oko constellation plane 4 - 32 degree longitude of ascending node.

Covered Oko constellation plane 9 - 233 degree longitude of ascending node.

Covered Oko constellation plane 2 - 317 degree longitude of ascending node.

Covered Oko constellation plane 1 - 277 degree longitude of ascending node.

Launched into an erroneous orbit. There was no communication with the satellite. Covered Oko constellation plane 6 - 115 degree longitude of ascending node.

Replaced Cosmos 2084. Covered Oko constellation plane 6 - 117 degree longitude of ascending node.

Covered Oko constellation plane 3 - 357 degree longitude of ascending node.

Covered Oko constellation planes 3/4 - 12 degree longitude of ascending node.

Covered Oko constellation plane 6 - 119 degree longitude of ascending node.

Covered Oko constellation plane 5 - 75 degree longitude of ascending node.

Covered Oko constellation plane 8 - 201 degree longitude of ascending node.

Covered Oko constellation plane 1 - 270 degree longitude of ascending node.

Covered Oko constellation plane 4 - 34 degree longitude of ascending node.

Covered Oko constellation plane 7 - 161 degree longitude of ascending node.

Covered Oko constellation plane 9 - 235 degree longitude of ascending node.

Covered Oko constellation plane 5 - 78 degree longitude of ascending node.

Covered Oko constellation planes 2/3 - 332 degree longitude of ascending node.

Oko launch aborted at moment of engine ignition. Spacecraft was intended to cover Oko constellation planes 8/9 - 209 degree longitude of ascending node.

Covered Oko constellation planes 8/9 - 217 degree longitude of ascending node.

Covered Oko constellation planes 6/7 - 129 degree longitude of ascending node.

Early warning satellite, carrying a large telescope to monitor missile launches. The payload and fourth stage were placed in an initial 229 km x 523 km x 62.8 deg orbit; the fourth stage (Block-2BL) fired over South America on the first orbit and delivered the payload to its 12-hour final orbit.

• 6 - JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. HTML when accessed: http://msl.jpl.nasa.gov/home.html
• 64 - Varfolomyev, Timothy, Spaceflight, "Soviet Rocketry that Conquered Space - Part 5", 1998, Volume 40, page 85.
• 65 - Novosti Kosmonavtiki, "Otmenenniy Start "Molniya-M"", 1997, Issue 1, page 29.
• 100 - Novosti Kosmonavtiki, "K voprosy o sputnikakh 'Oko'", 1997, Issue 15, page 45.
• 102 - Voevodin, Sergey A, VSA072 - Space Apparatus, "Sergey A. Voevodin's Reports", . HTML when accessed: http://www.mcs.net/~rusaerog/sergeyv/VSA.html