launch-on-need rescue mission STS-400
E247703
Launch-on-need rescue mission STS-400 was a planned but never flown Space Shuttle contingency mission intended to rescue the crew of STS-125 in the event their orbiter was damaged and could not safely return to Earth.
All labels observed (1)
| Label | Occurrences |
|---|---|
| launch-on-need rescue mission STS-400 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2238578 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: launch-on-need rescue mission STS-400 Context triple: [STS-125, contingencyPlan, launch-on-need rescue mission STS-400]
-
A.
STS-41-D
STS-41-D was the maiden orbital mission of the Space Shuttle Discovery, launched by NASA in 1984 to deploy communications satellites and conduct scientific experiments.
-
B.
STS-41-G
STS-41-G was a 1984 NASA Space Shuttle Challenger mission notable for carrying multiple payload specialists and advancing Earth observation and satellite deployment capabilities.
-
C.
STS-114
STS-114 was NASA’s 2005 Space Shuttle Discovery “Return to Flight” mission that marked the resumption of shuttle operations after the Columbia disaster, focusing on testing new safety procedures and resupplying the International Space Station.
-
D.
STS-44
STS-44 was a 1991 NASA Space Shuttle Atlantis mission dedicated primarily to deploying a Defense Support Program (DSP) early-warning satellite for the U.S. Department of Defense.
-
E.
STS-41C
STS-41C was a 1984 NASA Space Shuttle Challenger mission notable for successfully repairing the Solar Maximum Mission satellite during the first on-orbit satellite repair operation.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: launch-on-need rescue mission STS-400 Target entity description: Launch-on-need rescue mission STS-400 was a planned but never flown Space Shuttle contingency mission intended to rescue the crew of STS-125 in the event their orbiter was damaged and could not safely return to Earth.
-
A.
STS-41-D
STS-41-D was the maiden orbital mission of the Space Shuttle Discovery, launched by NASA in 1984 to deploy communications satellites and conduct scientific experiments.
-
B.
STS-41-G
STS-41-G was a 1984 NASA Space Shuttle Challenger mission notable for carrying multiple payload specialists and advancing Earth observation and satellite deployment capabilities.
-
C.
STS-114
STS-114 was NASA’s 2005 Space Shuttle Discovery “Return to Flight” mission that marked the resumption of shuttle operations after the Columbia disaster, focusing on testing new safety procedures and resupplying the International Space Station.
-
D.
STS-44
STS-44 was a 1991 NASA Space Shuttle Atlantis mission dedicated primarily to deploying a Defense Support Program (DSP) early-warning satellite for the U.S. Department of Defense.
-
E.
STS-41C
STS-41C was a 1984 NASA Space Shuttle Challenger mission notable for successfully repairing the Solar Maximum Mission satellite during the first on-orbit satellite repair operation.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Space Shuttle contingency mission
ⓘ
launch-on-need mission ⓘ planned spaceflight ⓘ |
| activationCondition | STS-125 orbiter unable to safely reenter ⓘ |
| associatedOrbiterForSTS-125 | Space Shuttle Atlantis ⓘ |
| associatedWithMission |
Hubble Servicing Mission 4
ⓘ
surface form:
Hubble Space Telescope servicing mission STS-125
|
| associatedWithTelescope | Hubble Space Telescope ⓘ |
| backupCrewVehicle | Space Shuttle Endeavour ⓘ |
| contingencyForMission | STS-125 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| documentation | described in NASA contingency mission planning documents ⓘ |
| intendedPurpose |
crew rescue of STS-125
ⓘ
rescue mission ⓘ |
| launchOnNeedFor | STS-125 ⓘ |
| missionPatchStatus | no official flown patch ⓘ |
| missionRealizationCondition | would only launch if STS-125 declared unsafe ⓘ |
| missionType | rescue and safe return ⓘ |
| neverActivatedBecause | STS-125 orbiter Atlantis returned safely ⓘ |
| notableFeature |
one of few fully planned Shuttle rescue missions
ⓘ
paired with a non-ISS servicing mission ⓘ |
| operator | NASA ⓘ |
| plannedCrewTransferMethod |
spacewalks (EVAs)
ⓘ
use of both orbiters’ robotic arms ⓘ |
| plannedLandingSite | Kennedy Space Center Shuttle Landing Facility ⓘ |
| plannedLaunchSite |
Kennedy Space Center Launch Complex 39B
ⓘ
LC-39B ⓘ |
| plannedOrbit | similar to STS-125 orbit ⓘ |
| plannedOutcomeForDamagedOrbiter |
controlled reentry and destruction over ocean
ⓘ
deorbit without crew ⓘ |
| plannedTargetVehicle | Space Shuttle Atlantis ⓘ |
| planningEra | late Space Shuttle program ⓘ |
| primaryMissionDependency | damage assessment of STS-125 orbiter ⓘ |
| programContext | post-Columbia accident safety procedures ⓘ |
| programSafetyMeasure | part of NASA contingency planning ⓘ |
| reasonForPlanning | risk of irreparable damage to STS-125 orbiter ⓘ |
| relatedLaunchOnNeedDesignation | LON-400 ⓘ |
| riskContext | lack of safe haven at International Space Station for STS-125 ⓘ |
| riskMitigationFor | Hubble Space Telescope servicing flight risks ⓘ |
| spaceShuttleProgram |
NASA Space Shuttle program
ⓘ
surface form:
Space Shuttle program
|
| status | never flown ⓘ |
| wouldNotVisit | International Space Station ⓘ |
| wouldRendezvousWith |
Space Shuttle Atlantis
ⓘ
surface form:
STS-125 orbiter Atlantis
|
| wouldRescueCrewOf | STS-125 ⓘ |
| wouldRescueCrewSize | 7 ⓘ |
| wouldUseOrbiter | Space Shuttle Endeavour ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: launch-on-need rescue mission STS-400 Description of subject: Launch-on-need rescue mission STS-400 was a planned but never flown Space Shuttle contingency mission intended to rescue the crew of STS-125 in the event their orbiter was damaged and could not safely return to Earth.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.