Mars 5
E1005371
Mars 5 was a Soviet spacecraft from the 1970s Mars program that successfully entered Martian orbit and transmitted data about the planet’s atmosphere and surface.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mars 5 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12639369 — 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: Mars 5 Context triple: [Mars 3, relatedMission, Mars 5]
-
A.
Mars 4
Mars 4 was a Soviet Mars orbiter mission launched in 1973 as part of the Mars program, intended to study the Martian atmosphere and surface.
-
B.
Mars 3
Mars 3 was a Soviet spacecraft that became the first spacecraft to achieve a soft landing on Mars, though it failed shortly after touchdown.
-
C.
Mars 2
Mars 2 was a Soviet space probe launched in 1971 as part of the Mars program, notable for being the first human-made object to reach the surface of Mars, though its lander crashed.
-
D.
Phobos 2
Phobos 2 was a Soviet space probe launched in 1988 to study Mars and its moon Phobos as part of the Phobos program.
-
E.
Venera 13
Venera 13 was a Soviet space probe that successfully landed on Venus in 1982, transmitting the first color images and extensive data from the planet’s surface.
- 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: Mars 5 Target entity description: Mars 5 was a Soviet spacecraft from the 1970s Mars program that successfully entered Martian orbit and transmitted data about the planet’s atmosphere and surface.
-
A.
Mars 4
Mars 4 was a Soviet Mars orbiter mission launched in 1973 as part of the Mars program, intended to study the Martian atmosphere and surface.
-
B.
Mars 3
Mars 3 was a Soviet spacecraft that became the first spacecraft to achieve a soft landing on Mars, though it failed shortly after touchdown.
-
C.
Mars 2
Mars 2 was a Soviet space probe launched in 1971 as part of the Mars program, notable for being the first human-made object to reach the surface of Mars, though its lander crashed.
-
D.
Phobos 2
Phobos 2 was a Soviet space probe launched in 1988 to study Mars and its moon Phobos as part of the Phobos program.
-
E.
Venera 13
Venera 13 was a Soviet space probe that successfully landed on Venus in 1982, transmitting the first color images and extensive data from the planet’s surface.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Mars orbiter
ⓘ
Soviet Mars spacecraft ⓘ uncrewed spacecraft ⓘ |
| arrivalAtMarsDate | 1974-02-12 ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| dataReturned |
gamma-ray spectra of Martian surface
ⓘ
images of Martian surface ⓘ magnetic field data near Mars ⓘ measurements of Martian atmosphere ⓘ measurements of Martian ionosphere ⓘ solar wind data near Mars ⓘ |
| dataTransmissionDuration | a few days after Mars orbit insertion ⓘ |
| epoch | 1970s ⓘ |
| failureCause | depressurization of instrument compartment ⓘ |
| failureEffect | premature end of data transmission ⓘ |
| hasInstrument |
gamma-ray spectrometer
ⓘ
infrared radiometer ⓘ magnetometer ⓘ plasma sensors ⓘ radio occultation experiment ⓘ television camera system ⓘ ultraviolet spectrometer ⓘ |
| launchDate | 1973-07-25 ⓘ |
| launchSite |
Baikonur Cosmodrome
ⓘ
Baikonur Cosmodrome Site 81 NERFINISHED ⓘ |
| launchVehicle | Proton-K rocket NERFINISHED ⓘ |
| MarsOrbitInsertion | 1974-02-12 ⓘ |
| missionObjective |
measure Martian ionosphere
ⓘ
measure solar wind near Mars ⓘ obtain images of Mars ⓘ study Martian atmosphere ⓘ study Martian surface ⓘ |
| missionOutcome | partial success ⓘ |
| missionType | orbiter ⓘ |
| notableAchievement |
returned detailed data on Martian atmosphere and surface
ⓘ
successful insertion into Martian orbit ⓘ |
| operator | Soviet space program NERFINISHED ⓘ |
| orbitsCompletedAroundMars | multiple orbits before failure ⓘ |
| powerSource | solar panels ⓘ |
| primaryTarget | Mars NERFINISHED ⓘ |
| programSequence |
followed Mars 4
ⓘ
preceded Mars 6 ⓘ |
| spaceAgency | Soviet Academy of Sciences NERFINISHED ⓘ |
| spacecraftBus | M-73S NERFINISHED ⓘ |
| spacecraftMass | approximately 3260 kilograms ⓘ |
| spaceProgram | Soviet Mars program NERFINISHED ⓘ |
| status | mission completed ⓘ |
| upperStage | Blok D NERFINISHED ⓘ |
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: Mars 5 Description of subject: Mars 5 was a Soviet spacecraft from the 1970s Mars program that successfully entered Martian orbit and transmitted data about the planet’s atmosphere and surface.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.