STS-41B

E34024

NASA spaceflight Space Shuttle mission low Earth orbit mission

STS-41B was a 1984 NASA Space Shuttle Challenger mission best known for the first untethered spacewalks using the Manned Maneuvering Unit.

Aliases (1)

STS-41-B ×1

Statements (47)

Predicate	Object
instanceOf	NASA spaceflight → Space Shuttle mission → low Earth orbit mission →
ChallengerFlightNumber	4 →
commander	Vance D. Brand →
country	United States →
crewSize	5 →
deployedSatellite	Palapa B2 → Westar 6 →
EVA	first untethered EVA by Bruce McCandless II → untethered EVA by Robert L. Stewart →
EVAcount	2 →
EVAtotalTime	approximately 11 hours →
firstUntetheredSpacewalk	true →
followedBy	STS-41C →
landingCharacteristic	first Shuttle landing at Kennedy Space Center →
landingDate	1984-02-11 →
landingSite	Kennedy Space Center Shuttle Landing Facility →
laterSalvagedBy	STS-51A →
launchDate	1984-02-03 →
launchSite	Kennedy Space Center Launch Complex 39A →
launchVehicle	Space Shuttle Challenger →
missionDuration	7 days 23 hours 15 minutes → approximately 191 hours →
missionNumberInProgram	10 →
missionPatchFeature	astronaut using Manned Maneuvering Unit →
missionSpecialist	Bruce McCandless II → Robert L. Stewart → Ronald E. McNair →
notableFor	first untethered spacewalks → first use of Manned Maneuvering Unit in space →
operator	NASA →
orbitApogee	approximately 306 km →
orbitInclination	28.5 degrees →
orbitPerigee	approximately 296 km →
orbitPeriod	approximately 90 minutes →
pilot	Robert L. Gibson →
precededBy	STS-9 →
primaryMissionType	satellite deployment → technology demonstration →
satelliteDeploymentOutcome	Palapa B2 stranded in improper orbit → Westar 6 stranded in improper orbit →
spacecraft	OV-099 → Space Shuttle Challenger →
spaceShuttleProgram	Space Shuttle program →
usedEquipment	Manned Maneuvering Unit →
yearOfSpaceflight	1984 →

Referenced by (2)

Subject (surface form when different)	Predicate
Ronald McNair ("STS-41-B") →	mission
NASA Space Shuttle program →	notableMission