| Date |
Time (UTC) |
Event |
| 1975 Jan 1 |
05:18 |
Orbit of Cosmos 701 reported as 171 x 306 kilometres, 71.4 deg inclination with 89.4 minutes period. |
| 1975 Jan 1 |
09:47 |
Orbit of Cosmos 701 reported as 169 x 333 kilometres, 71.4 deg inclination with 89.3 minutes period. |
| 1975 Jan 1 |
14:15 |
Orbit of Cosmos 701 reported as 171 x 336 kilometres, 71.4 deg inclination with 89.6 minutes period. |
| 1975 Jan 5 |
01:51 |
Orbit of Cosmos 701 reported as 170 x 329 kilometres, 71.4 deg inclination with 89.6 minutes period. |
| 1975 Jan 6 |
07:42 |
Orbit of Cosmos 701 reported as 170 x 346 kilometres, 71.4 deg inclination with 89.5 minutes period. |
| 1975 Jan 9 |
06:14 |
Cosmos 701 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Jan 10 |
21:43 |
Soyuz 17 launched from the Baikonur Cosmodrome by Soyuz rocket into 185 x 249 kilometre orbit with Aleksei Gubarev and Georgi Grechko aboard |
| 1975 Jan 12 |
01:25 |
Soyuz 17 docks with Salyut 4 - orbit is 336 x 349 kilometres |
| 1975 Jan 12 |
|
The crew of Soyuz 17 enters Salyut 4 and find a note left inside by the space station preparation team - it says 'Wipe Your Feet!' |
| 1975 Jan 17 |
09:07 |
Cosmos 702 (Zenit-2M 11Ф690, Gektor) launched into 203 x 313 kilometre, 89.7 minutes period, 71.3 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite. |
| 1975 Jan 23 |
11:00 |
Cosmos 704 (Zenit-4MK, Germes) launched into 203 x 304 kilometre, 89.6 minutes period, 72.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Jan 26 |
16:28 |
Orbit of Cosmos 704 reported as 204 x 302 kilometres, 72.9 deg inclination with 89.6 minutes period. |
| 1975 Jan 27 |
02:54 |
Orbit of Cosmos 704 reported as 167 x 304 kilometres, 72.9 deg inclination with 89.6 minutes period. |
| 1975 Jan 28 |
08:39 |
Orbit of Cosmos 704 reported as 169 x 296 kilometres, 72.8 deg inclination with 89.2 minutes period. |
| 1975 Jan 28 |
10:08 |
Orbit of Cosmos 704 reported as 166 x 270 kilometres, 72.8 deg inclination with 89.2 minutes period. |
| 1975 Jan 29 |
06:43 |
Cosmos 702 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Jan 29 |
09:51 |
Orbit of Cosmos 704 reported as 166 x 339 kilometres, 72.8 deg inclination with 88.9 minutes period. |
| 1975 Jan 31 |
11:07 |
Orbit of Cosmos 704 reported as 167 x 335 kilometres, 72.8 deg inclination with 89.6 minutes period. |
| 1975 Feb 1 |
11:00 |
Orbit of Cosmos 704 reported as 168 x 344 kilometres, 72.9 deg inclination with 89.6 minutes period. |
| 1975 Feb 6 |
04:48 |
Cosmos 704 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Feb 9 |
06:08 |
Soyuz 17 undocks with Gubarev and Grechko aboard - Salyut 4 orbit is 334 x 346 kilometres |
| 1975 Feb 9 |
11:03 |
Soyuz 17 lands - 100 kilometres north-east of Tselinograd |
| 1975 Feb 12 |
14:30 |
Cosmos 709 (Zenit-4MK, Germes) launched into 180 x 311 kilometre, 89.4 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Feb 20 |
09:52 |
Orbit of Cosmos 709 reported as 178 x 301 kilometres, 62.8 deg inclination with 89.4 minutes period. |
| 1975 Feb 21 |
09:41 |
Orbit of Cosmos 709 reported as 178 x 316 kilometres, 62.8 deg inclination with 89.3 minutes period. |
| 1975 Feb 25 |
06:14 |
Cosmos 709 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Feb 26 |
09:00 |
Cosmos 710 (Zenit-4MK, Germes) launched into 169 x 338 kilometre, 89.6 minutes period, 65 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Mar 12 |
05:02 |
Cosmos 710 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Mar 12 |
08:55 |
Cosmos 719 (Zenit-4MK, Germes) launched into 174 x 307 kilometre, 89.3 minutes period, 65 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Mar 15 |
00:47 |
Orbit of Cosmos 719 reported as 173 x 303 kilometres, 65 deg inclination with 89.3 minutes period. |
| 1975 Mar 15 |
11:12 |
Orbit of Cosmos 719 reported as 171 x 323 kilometres, 65 deg inclination with 89.3 minutes period. |
| 1975 Mar 21 |
06:50 |
Cosmos 720 (Zenit-4MT, Orion) launched into 213 x 273 kilometre, 89.4 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Photographic imaging satellite for cartography. |
| 1975 Mar 22 |
|
Salyut 4 orbit has decayed to 330 x 340 kilometres, it is raised to 337x 350 kilometres |
| 1975 Mar 24 |
09:40 |
Orbit of Cosmos 719 reported as 172 x 304 kilometres, 65 deg inclination with 89.5 minutes period. |
| 1975 Mar 25 |
05:31 |
Cosmos 719 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Mar 26 |
08:50 |
Cosmos 721 (Zenit-2M 11Ф690, Gektor) launched into 206 x 228 kilometre, 88.9 minutes period, 81.3 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite. Carried Nauka autonomous module. |
| 1975 Mar 27 |
08:00 |
Cosmos 722 (Zenit-4MK, Germes) launched into 202 x 337 kilometre, 89.9 minutes period, 71.3 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Mar 28 |
06:22 |
Orbit of Cosmos 722 reported as 203 x 336 kilometres, 71.3 deg inclination with 89.9 minutes period. |
| 1975 Mar 28 |
18:19 |
Orbit of Cosmos 722 reported as 173 x 336 kilometres, 71.4 deg inclination with 89.9 minutes period. |
| 1975 Apr 1 |
|
Salyut 4 orbit is adjusted to 339 x 351 kilometres ready for rendezvous with the upcoming Soyuz 18 |
| 1975 Apr 1 |
21:36 |
Cosmos 720 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Apr 1 |
22:20 |
Orbit of Cosmos 720 reported as 210 x 263 kilometres, 62.8 deg inclination with 89.4 minutes period. |
| 1975 Apr 2 |
|
Owing to the effects of the lunar gravitational field, Luna 22 orbit around the Moon is now 200 x 1409 kilometres at 21 degrees inclination |
| 1975 Apr 2 |
20:34 |
Orbit of Cosmos 720 reported as 205 x 225 kilometres, 62.8 deg inclination with 89.2 minutes period. |
| 1975 Apr 3 |
05:27 |
Orbit of Cosmos 720 reported as 181 x 280 kilometres, 62.8 deg inclination with 88.8 minutes period. |
| 1975 Apr 5 |
11:02 |
Soyuz spacecraft (subsequently named by the Soviet Union as the 1975 'April anomaly') launched from the Baikonur Cosmodrome by Soyuz rocket with Vasily Lazarev and Oleg Makarov aboard |
| 1975 Apr 5 |
11:07 |
Separation between the second and third stages of the April anomaly Soyuz rocket fails - the third stage engine fires however, and the crew is forced to use the Soyuz propulsion system to pull away from it |
| 1975 Apr 5 |
11:23 |
The April anomaly Soyuz lands almost 1,600 km from the launch site, near the town of Gorno-Altaisk close to the Chinese border, and possibly inside China itself |
| 1975 Apr 7 |
05:17 |
Cosmos 721 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Apr 9 |
05:17 |
Cosmos 722 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Apr 16 |
08:00 |
Cosmos 727 (Zenit-4MK, Germes) launched into 174 x 334 kilometre, 89.6 minutes period, 65 deg inclination orbit from the Baikonur Cosmodrome by Soyuz 11A511U rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Apr 18 |
10:00 |
Cosmos 728 (Zenit-2M 11Ф690, Gektor) launched into 202 x 325 kilometre, 89.8 minutes period, 72.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite. Carried Nauka autonomous module. |
| 1975 Apr 24 |
08:05 |
Cosmos 730 (Zenit-4MK, Germes) launched into 209 x 233 kilometre, 89 minutes period, 81.3 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Apr 28 |
05:02 |
Cosmos 727 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Apr 29 |
05:02 |
Cosmos 728 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 May 6 |
04:34 |
Cosmos 730 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 May 14 |
|
Salyut 4 orbit has decayed to 330 x 351 kilometres, it is raised to 344 x 353 kilometres ready for rendezvous with the second attempt at the Soyuz 18 mission |
| 1975 May 21 |
06:59 |
Cosmos 731 (Zenit-2M 11Ф690, Gektor) launched into 203 x 296 kilometre, 89.5 minutes period, 65 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite. Carried Nauka autonomous module. |
| 1975 May 24 |
14:58 |
Soyuz 18 launched from the Baikonur Cosmodrome by Soyuz rocket into 186 x 230 kilometre orbit with Pyotr Klimuk and Vitali Sevastyanov aboard |
| 1975 May 25 |
21:30 |
Soyuz 18 docks with Salyut 4 - orbit is 338 x 349 kilometres |
| 1975 May 28 |
07:29 |
Cosmos 740 (Zenit-4MK, Germes) launched into 171 x 327 kilometre, 89.5 minutes period, 65 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 May 30 |
06:45 |
Cosmos 741 (Zenit-2M 11Ф690, Gektor-Priroda) launched into 208 x 230 kilometre, 88.9 minutes period, 81.3 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite directed at remote sensing under the Priroda project - recovered after 12 days. |
| 1975 Jun 2 |
04:48 |
Cosmos 731 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Jun 3 |
13:21 |
Cosmos 742 (Zenit-4MK, Germes) launched into 177 x 355 kilometre, 89.8 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Jun 5 |
03:58 |
Orbit of Cosmos 742 reported as 146 x 333 kilometres, 62.8 deg inclination with 89.8 minutes period. |
| 1975 Jun 9 |
13:28 |
Orbit of Cosmos 742 reported as 147 x 305 kilometres, 62.8 deg inclination with 89.3 minutes period. |
| 1975 Jun 10 |
04:48 |
Cosmos 740 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Jun 11 |
03:22 |
Cosmos 741 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Jun 11 |
05:38 |
Orbit of Cosmos 742 reported as 148 x 338 kilometres, 62.8 deg inclination with 89 minutes period. |
| 1975 Jun 12 |
12:30 |
Cosmos 743 (Zenit-4MK, Germes) launched into 179 x 333 kilometre, 89.6 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Jun 15 |
05:17 |
Cosmos 742 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Jun 15 |
07:28 |
Orbit of Cosmos 743 reported as 180 x 345 kilometres, 62.8 deg inclination with 89.6 minutes period. |
| 1975 Jun 16 |
10:22 |
Orbit of Cosmos 743 reported as 168 x 296 kilometres, 62.8 deg inclination with 89.8 minutes period. |
| 1975 Jun 19 |
09:39 |
Orbit of Cosmos 743 reported as 167 x 290 kilometres, 62.8 deg inclination with 89.1 minutes period. |
| 1975 Jun 20 |
10:53 |
Orbit of Cosmos 743 reported as 167 x 306 kilometres, 62.8 deg inclination with 89.1 minutes period. |
| 1975 Jun 25 |
04:19 |
Cosmos 743 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Jun 25 |
13:00 |
Cosmos 746 (Zenit-4MK, Germes) launched into 180 x 324 kilometre, 89.5 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Jun 27 |
13:00 |
Cosmos 747 (Zenit-2M 11Ф690, Gektor) launched into 193 x 291 kilometre, 89.3 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite. Carried Nauka autonomous module. |
| 1975 Jul 3 |
13:40 |
Cosmos 748 (Zenit-4MK, Germes) launched into 176 x 317 kilometre, 89.4 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Jul 4 |
05:46 |
Orbit of Cosmos 748 reported as 177 x 317 kilometres, 62.8 deg inclination with 89.4 minutes period. |
| 1975 Jul 4 |
14:44 |
Orbit of Cosmos 748 reported as 177 x 355 kilometres, 62.8 deg inclination with 89.4 minutes period. |
| 1975 Jul 7 |
04:07 |
Orbit of Cosmos 748 reported as 177 x 352 kilometres, 62.8 deg inclination with 89.8 minutes period. |
| 1975 Jul 7 |
13:02 |
Orbit of Cosmos 748 reported as 170 x 276 kilometres, 62.9 deg inclination with 89.8 minutes period. |
| 1975 Jul 8 |
04:48 |
Cosmos 746 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Jul 9 |
04:48 |
Cosmos 747 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Jul 10 |
09:12 |
Orbit of Cosmos 748 reported as 169 x 268 kilometres, 62.8 deg inclination with 89 minutes period. |
| 1975 Jul 11 |
05:57 |
Orbit of Cosmos 748 reported as 169 x 299 kilometres, 62.8 deg inclination with 88.9 minutes period. |
| 1975 Jul 15 |
12:20 |
Soyuz 19 launched from the Baikonur Cosmodrome by Soyuz 19 rocket into 191 x 218 kilometre orbit at 51.6 degrees inclination with Alexei Leonov and Valeri Kubasov aboard (for the first time ever, two unrelated space missions are being controlled simultaneously as cosmonauts Klimuk and Sevastyanov work aboard Salyut 4) |
| 1975 Jul 15 |
|
Atmospheric pressure inside Soyuz 19 is now 10.4 psi/540 mm, rather than the 'normal' 14.7 psi/760 mm |
| 1975 Jul 15 |
19:50 |
Apollo (ASTP) launched from the Kennedy Space Center by Saturn 1B rocket (SA-210) into 153 x 166 kilometre orbit with Thomas Stafford, Vance Brand and Donald Slayton aboard |
| 1975 Jul 15 |
21:04 |
Apollo separates from the upper stage of the Saturn 1B and starts the manoeuvre aimed at docking with the ASTP Docking Module - it then pulls the module away from the rocket and Apollo is ready for the docking with Soyuz 19 |
| 1975 Jul 15 |
23:10 |
Apollo crew reports the presence of a mosquito in the cabin - it subsequently disappears and is assumed to have died |
| 1975 Jul 16 |
05:17 |
Cosmos 748 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Jul 17 |
08:05 |
Direct radio contact established between Apollo and Soyuz 19 |
| 1975 Jul 17 |
16:09 |
Soyuz 19 and Apollo dock together after Soyuz 19 acts as a 'passive' target for Apollo |
| 1975 Jul 17 |
16:12 |
Hard-dock and latching between the two spacecraft is achieved - orbit is 217 x 231 kilometres |
| 1975 Jul 17 |
|
Soyuz 19 internal pressure is reduced to 9.7 psi/500 mm |
| 1975 Jul 17 |
16:26 |
Astronauts Stafford and Slayton enter the Docking Module, close the hatches between the Module and Apollo, and raise the atmospheric pressure from 5.0 psi/255 mm to 9.5 psi/490 mm by introducing nitrogen |
| 1975 Jul 17 |
18:00 |
Crews of Salyut 4 and Soyuz 19 exchange greetings as they pass within radio range of each other |
| 1975 Jul 17 |
19:10 |
Soyuz 19 crew opens the hatch at the forward end of the orbital module |
| 1975 Jul 17 |
19:17 |
After pressures have been equalised at 9.9 psi/510 mm, astronaut Stafford opens the hatch at the Soyuz 19 end of the Docking Module - the way into Soyuz 19 orbital module is now clear |
| 1975 Jul 17 |
19:19 |
Astronaut Stafford and cosmonaut Leonov shake hands inside the Docking Module |
| 1975 Jul 17 |
22:47 |
The crews part and then close the hatches between the Docking Module and Soyuz 19, pressure in the Docking Module is reduced to 5.0 psi/260 mm and then Stafford and Slayton return to Apollo command module |
| 1975 Jul 18 |
09:15 |
Stafford and Brand enter the Docking Module, close the hatches between the Module and Apollo, and raise the atmospheric pressure |
| 1975 Jul 18 |
10:00 |
The hatches into Soyuz 19 are opened after pressures are equalised - Leonov enters the Docking Module and Brand transfers into Soyuz 19 to join Kubasov |
| 1975 Jul 18 |
11:00 |
The hatches to Apollo are opened after the pressure in the Docking Module has been reduced - Leonov and Stafford join Slayton in Apollo |
| 1975 Jul 18 |
15:45 |
Stafford and Leonov enter the Docking Module, close the hatches between the Module and Apollo, and raise the atmospheric pressure |
| 1975 Jul 18 |
16:01 |
The hatches into Soyuz 19 are opened after pressures are equalised, Brand and Kubasov then change places with Leonov and Stafford |
| 1975 Jul 18 |
16:30 |
The hatches to Soyuz 19 are closed and the pressure in the Docking Module is then reduced to allow the hatches into Apollo to be opened - Brand and Kubasov join Slayton in Apollo |
| 1975 Jul 18 |
17:30 |
Both crews take part in an international press conference |
| 1975 Jul 18 |
19:50 |
Slayton and Kubasov enter the Docking Module, close the hatches between the Module and Apollo, and raise the atmospheric pressure |
| 1975 Jul 18 |
20:20 |
The hatches into Soyuz 19 are opened after pressures are equalised, then Slayton and Kubasov Join Leonov and Stafford in Soyuz |
| 1975 Jul 18 |
20:49 |
Stafford and Leonov shake hands |
| 1975 Jul 18 |
21:00 |
The hatches to Soyuz 19 are closed after Stafford and Slayton enter the Docking Module - joint activities between the two crews are finished - they then reduce the pressure in the Docking Module |
| 1975 Jul 18 |
21:35 |
Stafford and Slayton enter Apollo and close the remaining hatches |
| 1975 Jul 19 |
12:12 |
Soyuz 19 and Apollo undock and move away from each other - Apollo is between Soyuz 19 and the Sun, creating a solar eclipse for observation by the Soyuz 19 crew |
| 1975 Jul 19 |
12:33 |
Soyuz 19 and Apollo dock together in orbit for a second time - this time Apollo is the passive target |
| 1975 Jul 19 |
12:40 |
Hard-dock and latching between the two spacecraft is achieved, but Apollo has to give unplanned assistance by firing its thrusters at the last moment |
| 1975 Jul 19 |
15:26 |
Soyuz 19 and Apollo undock again |
| 1975 Jul 19 |
18:42 |
Apollo fires its Reaction Control System thrusters and moves away |
| 1975 Jul 19 |
|
Atmospheric pressure inside Soyuz 19 is back to the 'normal' 14.7 psi/760 mm |
| 1975 Jul 21 |
10:10 |
Soyuz 19 fires its manoeuvring engine to initiate re-entry |
| 1975 Jul 21 |
10:51 |
Soyuz 19 lands - 90 kilometres north east of Arkalyk |
| 1975 Jul 23 |
13:00 |
Cosmos 751 (Zenit-2M 11Ф690, Gektor) launched into 197 x 315 kilometre, 89.6 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite. |
| 1975 Jul 24 |
|
The crew begins mothballing Salyut 4 in preparation for their departure |
| 1975 Jul 24 |
|
Crew of Apollo stows unwanted materials in the Docking Module |
| 1975 Jul 24 |
19:41 |
Apollo releases the Docking Module |
| 1975 Jul 24 |
20:37 |
Apollo fires its Service Propulsion System to initiate re-entry |
| 1975 Jul 24 |
21:18 |
Apollo splashes down - 430 kilometres west of Hawaii, it is hoisted aboard the aircraft carrier USS New Orleans with the crew inside |
| 1975 Jul 25 |
|
Salyut 4 orbit is adjusted using Soyuz 18 propulsion system - it has decayed to 335 x 344 kilometres - the rocket motor firings raise it to 342 x 361 kilometres |
| 1975 Jul 26 |
10:56 |
Soyuz 18 undocks FROM Salyut 4with Klimuk and Sevatyanov aboard - Salyut 4 orbit is 342 x 361 kilometres |
| 1975 Jul 26 |
14:18 |
Soyuz 18 lands - 56 kilometres south-west of Arkalyk |
| 1975 Jul 31 |
13:00 |
Cosmos 753 (Zenit-4MK, Germes) launched into 180 x 329 kilometre, 89.6 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Aug 2 |
|
Apollo-Soyuz Docking Module enters the Earth atmosphere as a result of natural decay of the orbit through air drag and is destroyed by frictional heating |
| 1975 Aug 2 |
12:28 |
Orbit of Cosmos 753 reported as 169 x 301 kilometres, 62.8 deg inclination with 89.6 minutes period. |
| 1975 Aug 4 |
04:19 |
Cosmos 751 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Aug 4 |
09:03 |
Orbit of Cosmos 753 reported as 168 x 297 kilometres, 62.8 deg inclination with 89.2 minutes period. |
| 1975 Aug 5 |
10:19 |
Orbit of Cosmos 753 reported as 167 x 319 kilometres, 62.8 deg inclination with 89.1 minutes period. |
| 1975 Aug 10 |
09:22 |
Orbit of Cosmos 753 reported as 165 x 307 kilometres, 62.8 deg inclination with 89.4 minutes period. |
| 1975 Aug 11 |
09:10 |
Orbit of Cosmos 753 reported as 165 x 304 kilometres, 62.8 deg inclination with 89.2 minutes period. |
| 1975 Aug 13 |
04:48 |
Cosmos 753 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Aug 13 |
07:21 |
Cosmos 754 (Zenit-4MK, Germes) launched into 202 x 327 kilometre, 89.8 minutes period, 71.4 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Aug 14 |
07:11 |
Orbit of Cosmos 754 reported as 204 x 325 kilometres, 71.4 deg inclination with 89.8 minutes period. |
| 1975 Aug 15 |
08:31 |
Orbit of Cosmos 754 reported as 172 x 316 kilometres, 71.4 deg inclination with 89.8 minutes period. |
| 1975 Aug 20 |
10:38 |
Orbit of Cosmos 754 reported as 170 x 306 kilometres, 71.4 deg inclination with 89.4 minutes period. |
| 1975 Aug 21 |
10:28 |
Orbit of Cosmos 754 reported as 170 x 352 kilometres, 71.4 deg inclination with 89.3 minutes period. |
| 1975 Aug 24 |
|
Owing to the effects of the lunar gravitational field, Luna 22 orbit around the Moon is now 30 x 1578 kilometres at 21 degrees inclination |
| 1975 Aug 26 |
04:34 |
Cosmos 754 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Aug 27 |
14:45 |
Cosmos 757 (Zenit-4MK, Germes) launched into 182 x 315 kilometre, 89.5 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Aug 28 |
15:48 |
Orbit of Cosmos 757 reported as 181 x 314 kilometres, 62.8 deg inclination with 89.5 minutes period. |
| 1975 Aug 29 |
03:44 |
Orbit of Cosmos 757 reported as 167 x 308 kilometres, 62.8 deg inclination with 89.5 minutes period. |
| 1975 Sep 2 |
|
After firing its onboard rocket engine for a final time, Luna 22 orbit around the Moon is now 100 x 1286 kilometres at 21 degrees inclination - all propellant is now exhausted |
| 1975 Sep 2 |
10:17 |
Orbit of Cosmos 757 reported as 166 x 296 kilometres, 62.8 deg inclination with 89.2 minutes period. |
| 1975 Sep 3 |
13:02 |
Orbit of Cosmos 757 reported as 166 x 322 kilometres, 62.8 deg inclination with 89.1 minutes period. |
| 1975 Sep 9 |
06:14 |
Cosmos 757 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Sep 12 |
05:30 |
Cosmos 759 (Zenit-4MT, Orion) launched into 229 x 275 kilometre, 89.5 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Photographic imaging satellite for cartography. |
| 1975 Sep 16 |
09:00 |
Cosmos 760 (Zenit-4MK, Germes) launched into 170 x 339 kilometre, 89.6 minutes period, 65 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Sep 23 |
10:00 |
Cosmos 769 (Zenit-2M 11Ф690, Gektor) launched into 203 x 305 kilometre, 89.6 minutes period, 72.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite. Carried Nauka autonomous module with a Yantar re-entry capsule that was successfully recovered. |
| 1975 Sep 23 |
20:28 |
Cosmos 759 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Sep 25 |
08:48 |
Orbit of Cosmos 760 reported as 170 x 301 kilometres, 65 deg inclination with 89.6 minutes period. |
| 1975 Sep 25 |
09:50 |
Cosmos 771 (Zenit-4MKT, Fram) launched into 201 x 218 kilometre, 88.7 minutes period, 81.3 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Variant of the Zenit photo-reconnaissance satellite with specialised cameras for Earth Resources photography and environmental monitoring - originally planned as 'Resurs-F'. |
| 1975 Sep 26 |
03:26 |
Orbit of Cosmos 771 reported as 215 x 219 kilometres, 81.3 deg inclination with 88.7 minutes period. |
| 1975 Sep 26 |
04:09 |
Orbit of Cosmos 760 reported as 170 x 343 kilometres, 65 deg inclination with 89.2 minutes period. |
| 1975 Sep 30 |
05:31 |
Cosmos 760 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Oct 1 |
08:30 |
Cosmos 774 (Zenit-4MK, Germes) launched into 205 x 311 kilometre, 89.7 minutes period, 71.3 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Oct 1 |
10:48 |
Orbit of Cosmos 771 reported as 211 x 215 kilometres, 81.3 deg inclination with 88.9 minutes period. |
| 1975 Oct 2 |
04:34 |
Orbit of Cosmos 771 reported as 214 x 226 kilometres, 81.3 deg inclination with 88.8 minutes period. |
| 1975 Oct 2 |
09:48 |
Orbit of Cosmos 774 reported as 203 x 314 kilometres, 71.4 deg inclination with 89.7 minutes period. |
| 1975 Oct 5 |
04:19 |
Cosmos 769 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Oct 8 |
06:14 |
Cosmos 771 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Oct 8 |
09:09 |
Orbit of Cosmos 774 reported as 167 x 330 kilometres, 71.4 deg inclination with 89.7 minutes period. |
| 1975 Oct 9 |
06:02 |
Orbit of Cosmos 774 reported as 171 x 332 kilometres, 71.3 deg inclination with 89.5 minutes period. |
| 1975 Oct 10 |
05:55 |
Orbit of Cosmos 774 reported as 171 x 330 kilometres, 71.4 deg inclination with 89.6 minutes period. |
| 1975 Oct 11 |
04:17 |
Orbit of Cosmos 774 reported as 170 x 309 kilometres, 71.3 deg inclination with 89.5 minutes period. |
| 1975 Oct 15 |
05:17 |
Cosmos 774 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Oct 17 |
14:30 |
Cosmos 776 (Zenit-2M 11Ф690, Gektor) launched into 198 x 288 kilometre, 89.4 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite. Carried Nauka autonomous module. |
| 1975 Oct 29 |
06:29 |
Cosmos 776 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Nov 4 |
|
Salyut 4 orbit has decayed to 332 x 348 kilometres, it is raised to 344 x 353 kilometres |
| 1975 Nov 4 |
15:20 |
Cosmos 779 (Zenit-4MK, Germes) launched into 171 x 332 kilometre, 89.5 minutes period, 62.9 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Nov 6 |
13:18 |
Orbit of Cosmos 779 reported as 179 x 341 kilometres, 62.8 deg inclination with 89.5 minutes period. |
| 1975 Nov 8 |
11:38 |
Orbit of Cosmos 779 reported as 179 x 339 kilometres, 62.8 deg inclination with 89.7 minutes period. |
| 1975 Nov 9 |
14:30 |
Orbit of Cosmos 779 reported as 174 x 302 kilometres, 62.8 deg inclination with 89.7 minutes period. |
| 1975 Nov 11 |
11:07 |
Orbit of Cosmos 779 reported as 171 x 299 kilometres, 62.8 deg inclination with 89.3 minutes period. |
| 1975 Nov 12 |
03:28 |
Orbit of Cosmos 779 reported as 172 x 280 kilometres, 62.8 deg inclination with 89.2 minutes period. |
| 1975 Nov 14 |
11:50 |
Orbit of Cosmos 779 reported as 170 x 277 kilometres, 62.8 deg inclination with 89 minutes period. |
| 1975 Nov 15 |
02:39 |
Orbit of Cosmos 779 reported as 168 x 291 kilometres, 62.8 deg inclination with 89 minutes period. |
| 1975 Nov 17 |
14:38 |
Soyuz 20 launched from the Baikonur Cosmodrome by Soyuz rocket into 177 x 251 kilometre orbit - it has no crew aboard but carries a cargo of biological specimens including turtles and plants - experiments are to performed in parallel with the Cosmos 782 biological satellite on a three-week mission |
| 1975 Nov 18 |
06:43 |
Cosmos 779 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Nov 19 |
16:19 |
Soyuz 20 docks with Salyut 4 - orbit is 342 x 350 kilometres |
| 1975 Nov 21 |
09:20 |
Cosmos 780 (Zenit-2M 11Ф690, Gektor) launched into 202 x 278 kilometre, 89.3 minutes period, 65 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite. Carried Nauka autonomous module. |
| 1975 Nov 25 |
17:00 |
Cosmos 782 (Bion №3) launched into 218 x 383 kilometre, 90.5 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Biological research satellite, probably based on the Zenit reconsat (probably the 2M version) with the experiments payload replacing the cameras. |
| 1975 Dec 3 |
05:46 |
Cosmos 780 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Dec 3 |
10:00 |
Cosmos 784 (Zenit-2M 11Ф690, Gektor) launched into 213 x 230 kilometre, 89 minutes period, 81.3 deg inclination orbit from the Plesetsk Cosmodrome by Voskhod 11A57 rocket. Photo-reconnaissance satellite. Carried Nauka autonomous module. |
| 1975 Dec 15 |
04:48 |
Cosmos 782 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Dec 15 |
06:29 |
Cosmos 784 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
| 1975 Dec 16 |
09:50 |
Cosmos 786 (Zenit-4MK, Germes) launched into 172 x 328 kilometre, 89.5 minutes period, 65 deg inclination orbit from the Baikonur Cosmodrome by Voskhod 11A57 rocket. Variant of the manoeuvrable Zenit-4M with high resolution cameras. |
| 1975 Dec 23 |
17:38 |
Orbit of Cosmos 786 reported as 172 x 317 kilometres, 65 deg inclination with 89.5 minutes period. |
| 1975 Dec 24 |
10:01 |
Orbit of Cosmos 786 reported as 172 x 301 kilometres, 65 deg inclination with 89.4 minutes period. |
| 1975 Dec 29 |
05:17 |
Cosmos 786 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere. |
