STS-74

STS-74
Atlantis approaches Mir with the station's Docking Module in its payload bay
NamesSpace Transportation System-74
Mission typeShuttle-Mir
OperatorNASA
COSPAR ID1995-061A Edit this at Wikidata
SATCAT no.23714
Mission duration8 days, 04 hours, 31 minutes, 42 seconds
Distance travelled5,500,000 kilometres (3,400,000 mi)
Orbits completed128
Spacecraft properties
SpacecraftSpace Shuttle Atlantis
Launch mass112,358 kilograms (247,707 lb)
Landing mass92,701 kilograms (204,371 lb)
Payload mass6,134 kilograms (13,523 lb)
Crew
Crew size5
Members
Start of mission
Launch date12 November 1995, 12:30:43.071 (1995-11-12UTC12:30:43Z) UTC
Launch siteKennedy, LC-39A
End of mission
Landing date20 November 1995, 17:01:27 (1995-11-20UTC17:01:28Z) UTC
Landing siteKennedy, SLF Runway 15
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude391 kilometres (243 mi)
Apogee altitude396 kilometres (246 mi)
Inclination51.6 degrees
Period92.4 min
Docking with Mir
Docking portSO starboard
Docking date15 November 1995, 06:27:38 UTC
Undocking date18 November 1995, 08:15:44 UTC
Time docked3 days, 1 hours, 48 minutes 6 seconds

STS-74 mission patch

Left to right: Halsell, Cameron; Standing: McArthur, Ross, Hadfield
← STS-73 (72)
STS-72 (74) →

STS-74 was the fourth mission of the US/Russian Shuttle–Mir program, and the second docking of the Space Shuttle with Mir. Space Shuttle Atlantis lifted off from Kennedy Space Center launch pad 39A on 12 November 1995. The mission ended 8 days later with the landing of Atlantis back at Kennedy. It was the second in a series of seven straight missions to the station flown by Atlantis.

The shuttle delivered a pair of solar arrays along with the Russian-built Mir Docking Module to allow docking with the station by the space shuttle without moving Mir's Kristall module. During the three-day docking, the Russian, Canadian, and American crew transferred supplies and equipment between Atlantis and Mir, moved several long-term experiments, and upgraded the station with new equipment, particularly during the installation of the docking module.