STS-103

STS-103
	Grunsfeld and Smith replacing gyroscopes on Hubble during the mission's first EVA
Names	Space Transportation System-103
Mission type	Hubble Space Telescope servicing
Operator	NASA
COSPAR ID	1999-069A
SATCAT no.	25996
Mission duration	7 days, 23 hours, 11 minutes 34 seconds
Distance travelled	5,230,000 kilometres (3,250,000 mi)
Spacecraft properties
Spacecraft	Space Shuttle Discovery
Launch mass	112,493 kilograms (248,005 lb)
Landing mass	95,768 kilograms (211,132 lb)
Crew
Crew size	7
Members	Curtis L. Brown Jr.; Scott J. Kelly; John M. Grunsfeld; Jean-François Clervoy; C. Michael Foale; Steven L. Smith; Claude Nicollier;
EVAs	3
EVA duration	24 hours, 33 minutes
Start of mission
Launch date	20 December 1999 00:50:00 UTC
Launch site	Kennedy LC-39B
End of mission
Landing date	28 December 1999 00:01:34 UTC
Landing site	Kennedy SLF Runway 33
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	563 kilometres (350 mi)
Apogee altitude	609 kilometres (378 mi)
Inclination	28.45 degrees
Period	96.4 minutes
Capture of Hubble
RMS capture	22 December 1999, 00:34 UTC
RMS release	25 December 1999, 11:03 UTC
	; Left to right; C. Michael Foale, Claude Nicollier, Scott J. Kelly, Curtis L. Brown Jr., Jean-Francois Clervoy, John M. Grunsfeld and Steven L. Smith Space Shuttle program ← STS-93 (95) STS-99 (97) →

STS-103, the 96th launch of the Space Shuttle and the 27th launch of Space Shuttle Discovery, was a Hubble Space Telescope servicing mission. It launched from Kennedy Space Center, Florida, on 19 December 1999 and returned on 27 December 1999 and was the last Shuttle mission of the 1990s. It was the only mission to span through Christmas after being delayed by 13 days for technical and weather reasons.

^ NASA (21 December 1999). "STS-103, Mission Control Center Status Report #05". Johnson Space Center Mission Status Reports. Houston, TX. Archived from the original on 28 January 2021. Retrieved 28 January 2021.
^ NASA (26 December 1999). "STS-103, Mission Control Center Status Report #14". Johnson Space Center Mission Status Reports. Houston, TX. Archived from the original on 28 January 2021. Retrieved 28 January 2021.

[MCCSR-05-1] NASA (21 December 1999). "STS-103, Mission Control Center Status Report #05". Johnson Space Center Mission Status Reports. Houston, TX. Archived from the original on 28 January 2021. Retrieved 28 January 2021.

[MCCSR-14-2] NASA (26 December 1999). "STS-103, Mission Control Center Status Report #14". Johnson Space Center Mission Status Reports. Houston, TX. Archived from the original on 28 January 2021. Retrieved 28 January 2021.

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