STS-74

STS-74

Atlantis approaches Mir with the station's Docking Module in its payload bay
Names	Space Transportation System-74
Mission type	Shuttle-Mir
Operator	NASA
COSPAR ID	1995-061A
SATCAT no.	23714
Mission duration	8 days, 04 hours, 31 minutes, 42 seconds
Distance travelled	5,500,000 kilometres (3,400,000 mi)
Orbits completed	128
Spacecraft properties
Spacecraft	Space Shuttle Atlantis
Launch mass	112,358 kilograms (247,707 lb)
Landing mass	92,701 kilograms (204,371 lb)
Payload mass	6,134 kilograms (13,523 lb)
Crew
Crew size	5
Members	Kenneth D. Cameron James D. Halsell Chris A. Hadfield Jerry L. Ross William S. McArthur Jr.
Start of mission
Launch date	12 November 1995, 12:30:43.071 (1995-11-12UTC12:30:43Z) UTC
Launch site	Kennedy LC-39A
End of mission
Landing date	20 November 1995, 17:01:27 (1995-11-20UTC17:01:28Z) UTC
Landing site	Kennedy SLF Runway 33
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	391 kilometres (243 mi)
Apogee altitude	396 kilometres (246 mi)
Inclination	51.6 degrees
Period	92.4 min
Docking with Mir
Docking port	SO starboard
Docking date	15 November 1995, 06:27:38 UTC
Undocking date	18 November 1995, 08:15:44 UTC
Time docked	3 days, 1 hours, 48 minutes 6 seconds
STS-74 mission patch Left to right: Halsell, Cameron; Standing: McArthur, Ross, Hadfield Space Shuttle program ← 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.