STS-1
E720431
STS-1 is the basic Synchronous Transport Signal level in SONET, defining the fundamental digital transmission rate and framing structure used in optical networks.
All labels observed (1)
| Label | Occurrences |
|---|---|
| STS-1 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T8204421 — 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-1 Context triple: [SONET, frameStructure, STS-1]
-
A.
STS-1
STS-1 was the inaugural crewed mission of NASA’s Space Shuttle program, marking the first orbital test flight of the reusable orbiter Columbia in 1981.
-
B.
STS-51A
STS-51A was a 1984 NASA Space Shuttle Discovery mission notable for successfully retrieving and returning two stranded communications satellites from orbit.
-
C.
STS-6
STS-6 was the maiden flight of the Space Shuttle Challenger, a 1983 NASA mission that deployed the first Tracking and Data Relay Satellite (TDRS-1).
-
D.
STS-7
STS-7 was a 1983 NASA Space Shuttle mission notable for carrying Sally Ride, who became the first American woman in space during the flight.
-
E.
STS-2
STS-2 was NASA’s second Space Shuttle mission, flown by Columbia in November 1981 as part of the early test flights of the reusable orbiter program.
- 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-1 Target entity description: STS-1 is the basic Synchronous Transport Signal level in SONET, defining the fundamental digital transmission rate and framing structure used in optical networks.
-
A.
STS-1
STS-1 was the inaugural crewed mission of NASA’s Space Shuttle program, marking the first orbital test flight of the reusable orbiter Columbia in 1981.
-
B.
STS-51A
STS-51A was a 1984 NASA Space Shuttle Discovery mission notable for successfully retrieving and returning two stranded communications satellites from orbit.
-
C.
STS-6
STS-6 was the maiden flight of the Space Shuttle Challenger, a 1983 NASA mission that deployed the first Tracking and Data Relay Satellite (TDRS-1).
-
D.
STS-7
STS-7 was a 1983 NASA Space Shuttle mission notable for carrying Sally Ride, who became the first American woman in space during the flight.
-
E.
STS-2
STS-2 was NASA’s second Space Shuttle mission, flown by Columbia in November 1981 as part of the early test flights of the reusable orbiter program.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
SONET signal
ⓘ
Synchronous Transport Signal level ⓘ digital transmission format ⓘ |
| baseLevelFor |
OC-n
ⓘ
STS-n ⓘ |
| definedInStandard |
ANSI T1.105
ⓘ
ITU-T G.707 ⓘ |
| electricalEquivalent | OC-1 ⓘ |
| hasBitRate | 51.84 Mbit/s ⓘ |
| hasClocking | network-synchronous timing ⓘ |
| hasFrameDuration | 125 microseconds ⓘ |
| hasFrameRate | 8000 frames per second ⓘ |
| hasFrameSize | 810 bytes ⓘ |
| hasFrameStructure | 9 rows by 90 columns ⓘ |
| hasLineOverhead | SONET line overhead ⓘ |
| hasLineRate | 51.84 Mbit/s ⓘ |
| hasMapping |
VT1.5
ⓘ
VT2 ⓘ VT3 ⓘ VT6 ⓘ |
| hasOverheadBitRate | 1.728 Mbit/s ⓘ |
| hasPathOverhead | SONET path overhead ⓘ |
| hasPayloadBitRate | 50.112 Mbit/s ⓘ |
| hasSectionOverhead | SONET section overhead ⓘ |
| hasSynchronousPayloadEnvelopeColumns | 87 columns ⓘ |
| hasTransportOverheadColumns | 3 columns ⓘ |
| layerIn |
SONET line layer
ⓘ
SONET path layer ⓘ SONET section layer ⓘ |
| multiplexes |
DS1
ⓘ
DS3 (via concatenation) ⓘ E1 (via mapping) ⓘ |
| partOf | SONET ⓘ |
| supports |
operations, administration, and maintenance (OAM)
ⓘ
performance monitoring ⓘ protection switching ⓘ |
| supportsConcatenation |
STS-1c
ⓘ
STS-3c ⓘ higher-order STS-nc signals ⓘ |
| transports |
data traffic
ⓘ
video traffic ⓘ voice traffic ⓘ |
| usedAs | fundamental SONET building block ⓘ |
| usedFor |
digital signal multiplexing
ⓘ
synchronous optical transport ⓘ |
| usedIn | optical networks ⓘ |
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-1 Description of subject: STS-1 is the basic Synchronous Transport Signal level in SONET, defining the fundamental digital transmission rate and framing structure used in optical networks.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.