The landing of Soyuz TM-12


In the night of 9 to 10 October 1991 ascended the commandant of the cadre Anatoli Arzebarskij, the board engineer of the guest crew Toktar Aubakirov and the Austrian scientific cosmonaut Franz Viehboeck from the space station MIR into the space transporter Soyuz TM-12, which had allready docked on 20 May 1991 at 18:15 CET with an English-Soviet crew at the space station MIR. The docking off of Soyuz TM-12 from the MIR resulted on 10 Oktober 1991 at 01:52 CET.

The landing of Soyuz TM-12 was on 10 October 1991 at 05:12 CET (08:12 local time) 58 km eastern of Arkalyk (Kazakhstan).

Landing part of Soyuz TM-12 after landing in the kazakh veldt. Photo: BMBWK, Vienna

The flight routing center had radio and TV-contact with the crews on board of MIR and Soyuz TM-12 from docking off to the landing of Soyuz TM-12 as follows:

22:45Closing of the hatch
22:45 – 23:40Check of the impermeability of the docking lug
23:40 – 00:40Activating of the spacesuits, change for the crew into the landing machine, Closing of the hatch between the cre unit and the landing machine
00:09 – 00:27Radio communication with the crew during the 32307th orbit of the space station MIR
00:40 – 01:52Check of the impermeability of the spacesuits, check of the impermeability of the hatch between crew unit and the landing machine
01:39 – 02:03Radio communication with the crew during the 32308th orbit of the space station MIR
01:46 – 02:01TV-transmission from the outside fixed camera of Soyuz TM-12
01:52 – 01:56D O C K I N G    O F F
03:07 – 03:38Radio communication with the crew during the 32309th orbit of the space station MIR
03:15 – 03:35TV-transmission from the outside fixed camera and the flight parameter of the space transporter Soyuz TM-12
04:08 – 04:46Radio communication with the crew over relay satellite
04:14Switch-on of the brake engine, operating time 259,3 sec
04:45Seperation from the crew unit of the space transporter
04:45Seperation from the landing machine
04:48Entry of the landing machine into the earth atmosphere
04:50Start of the controlled descent
04:50 – 04:55Break of the radio contact to the landing machine caused by ionic plasma creation
04:57Opening of the parachute
05:12L A N D I N G of Soyuz TM-12 58 km eastern from the city Arkalyk (Kazakhstan)
Chart of the landing of the transporter Soyuz TM-12 on 10.10.1991. Chart: BMBWK, Vienna

So the six days lasting habitation of the Austrian-Soviet crew on the space station MIR ended.