very cold, but breathable. Frost covered the walls and apparatus. The cosmonauts wore winter garb, including fur-lined hats, as they entered the station. The first order of business was to restore electric power. Of the eight batteries, all were dead, and two were destroyed. Dzhanibekov determined that a sensor had failed in the solar array pointing system, preventing the batteries from recharging. A telemetry radio problem prevented the TsUP from detecting the problem. Salyut 7 had quickly run down its batteries, shutting down all its systems and accounting for the break in radio contact. The cosmonauts set about recharging the batteries. They used Soyuz-T 13 to turn the station to put its solar arrays in sunlight. On June 10 they turned on the air heaters. The cosmonauts relied on the Soyuz-T 13 air regeneration system until they could get the Salyut 7 system back in order. On June 13 the attitude control system was successfully reactivated. This was cause for jubilation, as it meant a Progress bearing replacement parts could dock with Salyut 7. Wall heaters were turned on only after all the frost had evaporated, in order to prevent water from entering equipment. Normal atmospheric humidity was achieved only at the end of July. The station’s water tanks thawed by the end of June. Freezing destroyed the water heater, so the cosmonauts used a powerful television light to heat fluids.[1]
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Progress 24 • Salyut 7 • Soyuz-T 13 | June 23-July 15, 1985 | |
| Progress 24. The freighter delivered propellant, solar array extensions, a new water heater, three new batteries, and about 40 kg of other replacement parts. | |||
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Salyut 7 • Soyuz-T 13 | July 15-21, 1985 |
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Cosmos 1669 • Salyut 7 • Soyuz-T 13 | July 21-August 29, 1985 | |
| Cosmos 1669. During its flight, the Soviets claimed Progress 1669 was a freeflyer prototype. Now it is known that the spacecraft was a Progress incorporating upgrades for use with Mir.
EVA—third solar array augmentation. On August 2 the Pamirs stepped outside to add the third and final pair of solar array add-ons to Salyut 7. They wore new semirigid suits delivered by Progress 24. The EVA duration was about 5 hr. | |||
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Salyut 7 • Soyuz-T 13 | August 29-September 18, 1985 |
- ↑ Johnson, 1986, p. 54.
