Progress M1-6
| Mission type | International Space Station resupply |
|---|---|
| Operator | Roskosmos |
| COSPAR ID | 2001-021A |
| SATCAT no. | 26773 |
| Mission duration | 95 days |
| Spacecraft properties | |
| Spacecraft type | Progress-M1 s/n 255 |
| Manufacturer | RKK Energia |
| Start of mission | |
| Launch date | 20 May 2001, 22:32:40 UTC |
| Rocket | Soyuz-FG |
| Launch site | Baikonur, Site 1/5 |
| End of mission | |
| Disposal | Deorbited |
| Decay date | 22 August 2001, 09:50 UTC |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 270 km |
| Apogee altitude | 316 km |
| Inclination | 51.6° |
| Period | 90.4 minutes |
| Epoch | 20 May 2001 |
| Docking with ISS | |
| Docking port | Zvezda aft |
| Docking date | 23 May 2001, 00:23:57 UTC |
| Undocking date | 22 August 2001, 06:02 UTC |
| Time docked | 91 days |
Progress ISS Resupply | |
Progress M1-6, identified by NASA as Progress 4P, was a Progress spacecraft used to resupply the International Space Station. It was a Progress-M1 11F615A55 spacecraft, with the serial number 255.