Delta II
E1216464
UNEXPLORED
Delta II was a highly reliable American expendable launch vehicle developed by McDonnell Douglas and later operated by Boeing and ULA, widely used from the late 1980s to 2018 to launch GPS, scientific, and Earth observation satellites.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Delta II 7925 | 4 |
| Delta II canonical | 2 |
| Delta II 7920-10L | 2 |
| Delta II 7425-10 | 1 |
| Delta II 7920 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T16496263 — 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: Delta II Context triple: [EOS PM-1, launchVehicle, Delta II]
-
A.
Delta III
Delta III was an American expendable launch vehicle developed in the late 1990s as an upgraded, higher-capacity member of the Delta rocket family, intended primarily for launching communications satellites to geostationary orbit.
-
B.
Delta IV
Delta IV is an expendable heavy-lift launch vehicle family developed by Boeing and operated by United Launch Alliance for launching military, government, and commercial payloads into orbit.
-
C.
Delta rocket
The Delta rocket is a family of American expendable launch vehicles developed to reliably place a wide range of civilian, military, and scientific payloads into orbit.
-
D.
Delta 2914
Delta 2914 was a variant of the Delta expendable launch vehicle family used by NASA to place scientific satellites, including the International Ultraviolet Explorer, into orbit.
-
E.
The Challenger
The Challenger is a notable work by British publisher and politician George Faber, likely reflecting his literary or intellectual contributions.
- 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: Delta II Target entity description: Delta II was a highly reliable American expendable launch vehicle developed by McDonnell Douglas and later operated by Boeing and ULA, widely used from the late 1980s to 2018 to launch GPS, scientific, and Earth observation satellites.
-
A.
Delta III
Delta III was an American expendable launch vehicle developed in the late 1990s as an upgraded, higher-capacity member of the Delta rocket family, intended primarily for launching communications satellites to geostationary orbit.
-
B.
Delta IV
Delta IV is an expendable heavy-lift launch vehicle family developed by Boeing and operated by United Launch Alliance for launching military, government, and commercial payloads into orbit.
-
C.
Delta rocket
The Delta rocket is a family of American expendable launch vehicles developed to reliably place a wide range of civilian, military, and scientific payloads into orbit.
-
D.
Delta 2914
Delta 2914 was a variant of the Delta expendable launch vehicle family used by NASA to place scientific satellites, including the International Ultraviolet Explorer, into orbit.
-
E.
The Challenger
The Challenger is a notable work by British publisher and politician George Faber, likely reflecting his literary or intellectual contributions.
- F. None of above. chosen
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Delta II 7920-10L
this entity surface form:
Delta II 7920-10L
this entity surface form:
Delta II 7925
this entity surface form:
Delta II 7925
this entity surface form:
Delta II 7920
this entity surface form:
Delta II 7925
this entity surface form:
Delta II 7925
this entity surface form:
Delta II 7425-10