CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0120
PROGRESS-M 6
PROGRESS-M 6 (NORAD 21053) was deorbited in a controlled re-entry after a space station visit on 15 March 1991, after 2 months in orbit.
Controlled re-entryOfficial date
NORAD number
21053
International designator
1991-002A
Object type
Spacecraft
Country
USSR
Launched
14 Jan 1991Baikonur Cosmodrome
Re-entered (UTC)
15 Mar 1991UTC calendar day
Time in orbit
2 months60 days
How it ended
Deorbited (controlled re-entry) after a station visit
Latitude range
51.6°N to 51.6°SFinal inclination 51.6°
Mass
7,125 kg
Operator
NPO Energiya
Built by
NPO Energiya
Bus
7K-TGM
Programme
Progress M
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 51.6°, allowed a re-entry anywhere between 51.6°N and 51.6°S.
Life in orbit
2 monthsPROGRESS-M 6’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 15 Mar 1991
1 entryFrom the same launch
1991-002
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0120
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0120
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.