STS-131

STS-131 (ISS assembly flight 19A) was a NASA Space Shuttle mission to the International Space Station (ISS). Space Shuttle Discovery launched on April 5, 2010, at 6:21 am from LC-39A, and landed at 9:08 am on April 20, 2010, on runway 33 at the Kennedy Space Center's Shuttle Landing Facility. The mission marked the longest flight for Space Shuttle Discovery.

STS-131
Canadarm2 grapples the MPLM Leonardo in Discovery's payload bay, prior to berthing
Mission typeISS logistics
OperatorNASA
COSPAR ID2010-012A
SATCAT no.36507
Mission duration15 days, 2 hours, 47 minutes, 11 seconds
Distance travelled10,029,810 kilometres (6,232,235 mi)
Orbits completed238
Spacecraft properties
SpacecraftSpace Shuttle Discovery
Launch mass2,051,031 kilograms (4,521,749 lb)(total)
121,047 kilograms (266,864 lb) (orbiter)
Landing mass102,039 kilograms (224,957 lb)
Crew
Crew size7
Members
Start of mission
Launch dateApril 5, 2010, 10:21:22 (2010-04-05UTC10:21:22Z) UTC
Launch siteKennedy LC-39A
End of mission
Landing dateApril 20, 2010, 13:08:35 (2010-04-20UTC13:08:36Z) UTC
Landing siteKennedy SLF Runway 15
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude320 kilometres (200 mi)
Apogee altitude346 kilometres (215 mi)
Inclination51.6°
Period90 minutes
Docking with ISS
Docking portPMA-2
(Harmony forward)
Docking dateApril 7, 2010, 07:44 UTC
Undocking dateApril 17, 2010, 12:52 UTC
Time docked10 days, 5 hours, 8 minutes

Seated: James Dutton (left) Alan Poindexter (right), Standing (l-r): Rick Mastracchio, Stephanie Wilson, Dorothy Metcalf-Lindenburger, Naoko Yamazaki (JAXA) and Clayton Anderson
 

The primary payload was a Multi-Purpose Logistics Module loaded with supplies and equipment for the International Space Station. The mission also removed and replaced an ammonia tank assembly outside the station on the S1 truss. STS-131 furthermore carried several on-board payloads; this mission had the most payloads since STS-107. It is also the last shuttle mission with a crew of 7.

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