Mir News 401: MIR-routine home
1998 Jan 2 - Nation: Russia.
  • Mir News 401: MIR-routine Program: Mir. Flight: Mir NASA-5, Mir EO-24.

    In the period after the last MirNEWS the situation on board Mir was far from easy. After the freon leak the A.C. (BKV-3) remained switched off and the dehumidification of Mir's atmosphere was not sufficient. To gather at least 2.5 litres of the normal 4 litres of condensation the condensation regenerator in the Life Compartment of Soyuz-TM26 was activated.

    In cold areas of the complex there is an enormous condensation. This condensation is almost reaching dangerous levels. To obtain sufficient water from condensation the Life Compartment of Soyuz-TM26 had to be cooled down. In this period the Elektrons did not work due to repair work and so Lithium Perchlorate cartridges had to be burnt for oxygen production. The cosmonauts accomplished the repair of the Vozdukh (CO2 scrubber) in the Base Block and as of 2.1.98 this system works and helps a little bit to remove water-vapour to open space.

    There is also a lot of condensation in the cold Progress-M37 and the crew deployed an air-hose to blow cool air from there into the Base Block. In the period between 27 and 30.12.97 Mir remained continuously in full sunlight and the temperatures in the Base Block reached values above 30 dgs C. The cosmonauts did not complain about these inconvenience and David Wolf even stated that he likes high temperatures which give him more energy.

    Failing Main Computer and Movements control system:

    In the night from 1 to 2.01.1998 the SUD (movements control) gave an alarm and the Ts.V.M.-1 switched itself off. The cause was still unclear at deadline of this report. TsUP even thought that a virus played a part in that. After a virus scan TsUP said there had not been a virus. The cosmonauts recently had checked the Ts.V.M.-1 with an anti-virus program of Nov. 97 and they did not find anything. During passes in the morning of 2.1.98 TsUP asked the cosmonauts to suspend all activities and wait for further instructions. TsUP tried to use Telemetry for analysis, but they only got incomprehensible data. The solar batteries do not get the full sunshine and the cosmonauts had to switch the lights out and use electric torches. For today the repair work on the Elektrons has been cancelled.

    Spacewalks (EVA-s):

    The first EVA (Solovyov and Vinogradov) is scheduled for 8.01.98 from 2320 UTC (opening hatch between Scientific and instrument compartment and Airlock of Module-D). This EVA will last appr. 5 hrs 30 mins. If Solovyov and Vinogradov during that EVA accomplished the repair of the hatch of the air-lock the second EVA (Solovyov and Wolf) might take place on 14.01.98 from 2040 UTC (opening hatch of air-lock of module-D.) Duration appr. 2 hrs.

    Chris v.d. Berg, NL-9165/A-UK3202.


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