Progress 7K-TGM1 No. 255

Re-entered 23 May 2001

Progress 7K-TGM1 No. 255 (NORAD 26773, COSPAR 2001-021A) was a RU satellite that re-entered Earth's atmosphere on 23 May 2001, launched on 20 May 2001 on the Progress M1 No. 255 mission. It was operated by RKKE as part of the Progress M1 programme. The spacecraft was built by PROGT on the 7K-TGM1 bus, with a mass of 7,300 kg. Like most satellites in low orbits, it was gradually slowed by atmospheric drag until re-entry. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.

2001

launched

2001

re-entered

years on orbit

7,300

kg mass

Lifecycle

Launched20 May 2001 · on the Progress M1 No. 255 mission

Operational22 Aug 2001 · entered service

Retired22 Aug 2001 · end of operational service

Re-entered23 May 2001 · atmospheric re-entry — object destroyed

Specifications

NORAD ID26773

COSPAR2001-021A

TypeSatellite

OperatorRKKE

Country / StateRU

ManufacturerPROGT

Bus7K-TGM1

Mass7,300 kg (4,500 kg dry)

ProgrammeProgress M1

CategorySS

OrbitLEO (LLEO/I)

Altitude374 × 398 km

Inclination51.6°

Frequently asked questions

What happened to Progress 7K-TGM1 No. 255?

Progress 7K-TGM1 No. 255 re-entered Earth's atmosphere on 23 May 2001, ending a mission that began with its launch in 2001. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Progress 7K-TGM1 No. 255 re-enter the atmosphere?

Progress 7K-TGM1 No. 255 re-entered on 23 May 2001, according to Orbital Radar's historical catalogue records.

Who operated and built Progress 7K-TGM1 No. 255?

Progress 7K-TGM1 No. 255 was operated by RKKE and built by PROGT (RU).

Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.

Browse the live satellite directory → Re-entered satellites archive → Launch record: Progress M1 No. 255 → What is space debris? →