Progress M-40

A Progress-M spacecraft
Mission type	Mir resupply
COSPAR ID	1998-062A
SATCAT no.	25512[1]
Spacecraft properties
Spacecraft	Progress (No.239)
Spacecraft type	Progress-M[2]
Manufacturer	RKK Energia
Start of mission
Launch date	25 October 1998, 04:14:57 UTC[1]
Rocket	Soyuz-U[2]
Launch site	Baikonur, Site 1/5
End of mission
Disposal	Deorbited
Decay date	5 February 1999, 10:16:05 UTC[3]
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	194 km[3]
Apogee altitude	238 km[3]
Inclination	51.6°[3]
Period	88.6 minutes[3]
Epoch	25 October 1998
Docking with Mir
Docking port	Kvant-1 aft[3]
Docking date	27 October 1998, 05:34:41 UTC
Undocking date	4 February 1999, 09:59:32 UTC
Progress (spacecraft) ← Progress M-39 Progress M-41 →

Progress M-40 (Russian: Прогресс M-40) was a Russian unmanned Progress cargo spacecraft, which was launched in October 1998 to resupply the Mir space station, carry the Sputnik 41 satellite^[4] and the unsuccessful Znamya 2.5 solar mirror.

Launch

Progress M-40 launched on 25 October 1998 from the Baikonur Cosmodrome in Kazakhstan. It used a Soyuz-U rocket.^[2][5]

Docking

Progress M-40 docked with the aft port of the Kvant-1 module of Mir on 27 October 1998 at 05:34:41 UTC, and was undocked on 4 February 1999 at 09:59:32 UTC.^[3][6] On 4 February 1999 at 10:24 UTC, following undocking from Mir, an unsuccessful attempt was made to deploy Znamya 2.5, a solar mirror.^[3][6]

Decay

It remained in orbit until 5 February 1999, when it was deorbited. The deorbit burn occurred at 10:16:05 UTC, with the mission ending at 11:09:30 UTC.^[3][6]

See also

• 1998 in spaceflight
• List of Progress missions
• List of uncrewed spaceflights to Mir

References

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