STS-51-D
E803684
STS-51-D was a 1985 NASA Space Shuttle Discovery mission that deployed communications satellites and conducted scientific experiments in low Earth orbit.
All labels observed (2)
| Label | Occurrences |
|---|---|
| STS-51-D canonical | 7 |
| Space Shuttle STS-51-D | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8674155 — 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: STS-51-D Context triple: [STS-51-C, followedBy, STS-51-D]
-
A.
STS-51-F
STS-51-F was a 1985 NASA Space Shuttle Challenger mission notable for its Spacelab 2 scientific payload and an in-flight main engine shutdown that led to the first use of an Abort to Orbit procedure.
-
B.
STS-51-L
STS-51-L was the ill-fated 1986 Space Shuttle Challenger mission that ended in disaster shortly after launch, resulting in the loss of all seven crew members.
-
C.
STS-51-C
STS-51-C was a 1985 classified U.S. Department of Defense Space Shuttle Discovery mission notable for being the first spaceflight of astronaut Ellison Onizuka.
-
D.
STS-51-B
STS-51-B was a 1985 NASA Space Shuttle Challenger mission focused on Spacelab scientific research in microgravity.
-
E.
STS-51-G
STS-51-G was a 1985 NASA Space Shuttle Discovery mission that deployed multiple communications satellites and conducted scientific experiments in low Earth orbit.
- 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: STS-51-D Target entity description: STS-51-D was a 1985 NASA Space Shuttle Discovery mission that deployed communications satellites and conducted scientific experiments in low Earth orbit.
-
A.
STS-51-F
STS-51-F was a 1985 NASA Space Shuttle Challenger mission notable for its Spacelab 2 scientific payload and an in-flight main engine shutdown that led to the first use of an Abort to Orbit procedure.
-
B.
STS-51-L
STS-51-L was the ill-fated 1986 Space Shuttle Challenger mission that ended in disaster shortly after launch, resulting in the loss of all seven crew members.
-
C.
STS-51-C
STS-51-C was a 1985 classified U.S. Department of Defense Space Shuttle Discovery mission notable for being the first spaceflight of astronaut Ellison Onizuka.
-
D.
STS-51-B
STS-51-B was a 1985 NASA Space Shuttle Challenger mission focused on Spacelab scientific research in microgravity.
-
E.
STS-51-G
STS-51-G was a 1985 NASA Space Shuttle Discovery mission that deployed multiple communications satellites and conducted scientific experiments in low Earth orbit.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
NASA spaceflight
ⓘ
Space Shuttle mission ⓘ |
| carriedPayload |
Continuous Flow Electrophoresis System
ⓘ
Getaway Special canisters ⓘ Materials processing experiments ⓘ Protein crystal growth experiments ⓘ Shuttle Student Involvement Program experiments ⓘ Syncom IV-3 (Leasat 3) ⓘ
linked to:
Syncom IV-3 (Leasat-3)
Telesat Anik C1 ⓘ rendezvous evaluation pod (REP) ⓘ |
| commander | Karol J. Bobko ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| crewSize | 7 ⓘ |
| issue | failure of Syncom IV-3 to activate after deployment ⓘ |
| landingDate | 1985-04-19 ⓘ |
| landingMethod | runway landing ⓘ |
| landingSite | Shuttle Landing Facility ⓘ |
| launchDate | 1985-04-12 ⓘ |
| launchMass | 115574 kg ⓘ |
| launchSite | Kennedy Space Center Launch Complex 39A ⓘ |
| missionDuration | 6 days 23 hours 55 minutes ⓘ |
| missionOutcome | partial success ⓘ |
| missionPatch | STS-51-D mission patch ⓘ |
| missionPurpose |
deployment of communications satellites
ⓘ
rendezvous and proximity operations test ⓘ scientific experiments in microgravity ⓘ |
| missionSpecialist |
David M. Griggs
ⓘ
Jeffrey A. Hoffman ⓘ Rhea Seddon ⓘ |
| nextMission | STS-51-B ⓘ |
| notableFeature | first sitting U.S. senator to fly in space ⓘ |
| operator | NASA ⓘ |
| orbit | low Earth orbit ⓘ |
| orbitApogee | 362 km ⓘ |
| orbitInclination | 28.45 degrees ⓘ |
| orbitPerigee | 352 km ⓘ |
| orbitPeriod | 91.6 minutes ⓘ |
| payloadSpecialist |
Charles D. Walker
ⓘ
Jake Garn ⓘ |
| performed | unscheduled rendezvous attempt with Syncom IV-3 ⓘ |
| pilot | Donald E. Williams ⓘ |
| previousMission | STS-51-C ⓘ |
| program |
Space Shuttle program
ⓘ
linked to:
NASA Space Shuttle program
|
| reentry | controlled deorbit burn followed by atmospheric reentry ⓘ |
| spaceAgency | NASA ⓘ |
| spacecraft | Space Shuttle Discovery ⓘ |
| spacecraftSerialNumber | OV-103 ⓘ |
| spaceShuttle | Discovery ⓘ |
| usedHardware | improvised flyswatter device on RMS ⓘ |
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: STS-51-D Description of subject: STS-51-D was a 1985 NASA Space Shuttle Discovery mission that deployed communications satellites and conducted scientific experiments in low Earth orbit.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.