| Progress 18 | |||||||||
| Mission Type: | Salyut 7 resupply | ||||||||
| Cospar Id: | 1983-106A | ||||||||
| Satcat: | 14422[1] | ||||||||
| Spacecraft: | Progress (No.118) | ||||||||
| Spacecraft Type: | Progress 7K-TG[2] | ||||||||
| Manufacturer: | NPO Energia | ||||||||
| Launch Date: | 20 October 1983, 09:59:05 UTC | ||||||||
| Launch Rocket: | Soyuz-U | ||||||||
| Launch Site: | Baikonur, Site 31/6 | ||||||||
| Docking: |
| ||||||||
| Disposal Type: | Deorbited | ||||||||
| Decay Date: | 16 November 1983, 04:18 UTC | ||||||||
| Orbit Epoch: | 20 October 1983 | ||||||||
| Orbit Reference: | Geocentric | ||||||||
| Orbit Regime: | Low Earth | ||||||||
| Orbit Periapsis: | 185 km | ||||||||
| Orbit Apoapsis: | 242 km | ||||||||
| Orbit Inclination: | 51.6° | ||||||||
| Orbit Period: | 88.8 minutes | ||||||||
| Apsis: | gee | ||||||||
| Programme: | Progress (spacecraft) | ||||||||
| Previous Mission: | Progress 17 | ||||||||
| Next Mission: | Progress 19 | ||||||||
Progress 18 was a Soviet uncrewed Progress cargo spacecraft, which was launched in October 1983 to resupply the Salyut 7 space station.
Progress 18 was a Progress 7K-TG spacecraft. The 18th of forty three to be launched, it had the serial number 118.[4] [5] The Progress 7K-TG spacecraft was the first generation Progress, derived from the Soyuz 7K-T and intended for uncrewed logistics missions to space stations in support of the Salyut programme. On some missions the spacecraft were also used to adjust the orbit of the space station.
The Progress spacecraft had a dry mass of, which increased to around when fully fuelled. It measured in length, and in diameter. Each spacecraft could accommodate up to of payload, consisting of dry cargo and propellant. The spacecraft were powered by chemical batteries, and could operate in free flight for up to three days, remaining docked to the station for up to thirty.[6]
Progress 18 launched on 20 October 1983 from the Baikonur Cosmodrome in the Kazakh SSR. It used a Soyuz-U rocket.[7]
Progress 18 docked with the aft port of Salyut 7 on 22 October 1983 at 11:34 UTC, and was undocked on 13 November 1983 at 03:08 UTC.[8]
It remained in orbit until 16 November 1983, when it was deorbited. The deorbit burn occurred at 04:18 UTC.