| Progress M-4 | |||||||||||
| Mission Type: | Mir resupply | ||||||||||
| Cospar Id: | 1990-072A | ||||||||||
| Spacecraft Type: | Progress-M 11F615A55 | ||||||||||
| Manufacturer: | NPO Energia | ||||||||||
| Launch Mass: | 7250kg (15,980lb) | ||||||||||
| Launch Date: | UTC | ||||||||||
| Launch Rocket: | Soyuz-U2 | ||||||||||
| Launch Site: | Baikonur Site 1/5 | ||||||||||
| Disposal Type: | Deorbited | ||||||||||
| Decay Date: | UTC | ||||||||||
| Orbit Reference: | Geocentric | ||||||||||
| Orbit Regime: | Low Earth | ||||||||||
| Orbit Inclination: | 51.6 degrees | ||||||||||
| Apsis: | gee | ||||||||||
| Docking: |
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Progress M-4 (Russian: Прогресс М-4|italic=yes) was a Soviet uncrewed cargo spacecraft which was launched in 1990 to resupply the Mir space station.[1] The twenty-second of sixty four Progress spacecraft to visit Mir, it used the Progress-M 11F615A55 configuration, and had the serial number 204.[2] It carried supplies including food, water and oxygen for the EO-7 crew aboard Mir, as well as equipment for conducting scientific research, and fuel for adjusting the station's orbit and performing manoeuvres.
Progress M-4 was launched at 04:00:41 GMT on 15 August 1990, atop a Soyuz-U2 carrier rocket flying from Site 1/5 at the Baikonur Cosmodrome.[2] It docked with the forward port of Mir's Core module at 05:26:13 GMT on 17 August.[3] [4]
During the month for which Progress M-4 was docked, Mir was in an orbit of around 368kmby403kmkm (229milesby250mileskm), inclined at 51.6 degrees. Progress M-4 undocked from Mir at 12:42:43 GMT on 17 September, and was deorbited three days later on 20 September, with the deorbit burn starting at 11:04:27.[3] It burned up in the atmosphere over the Pacific Ocean, with remaining debris landing in the ocean at around 11:42:49.[5] [3]