MICROSCOPE satellite mission
E57413
The MICROSCOPE satellite mission was a French-led space experiment designed to test the validity of Einstein’s equivalence principle with unprecedented precision by comparing the free fall of different materials in orbit.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T461572 — 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.
Target entity: MICROSCOPE satellite mission Context triple: [equivalence principle, testedBy, MICROSCOPE satellite mission]
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A.
SCISAT-1
SCISAT-1 is a Canadian scientific satellite dedicated primarily to studying Earth's upper atmosphere and monitoring ozone layer chemistry and related trace gases.
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B.
NEOSSat
NEOSSat is a Canadian microsatellite designed to detect and track near-Earth asteroids and space debris from orbit.
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C.
Mars Orbiter Mission
Mars Orbiter Mission is India’s first interplanetary spacecraft, launched by ISRO to orbit Mars and demonstrate the country’s capability in deep space exploration at remarkably low cost.
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D.
Deep Space Climate Observatory
The Deep Space Climate Observatory (DSCOVR) is a NOAA and NASA satellite positioned at the Sun–Earth L1 Lagrange point that continuously monitors solar wind conditions and provides real-time space weather and Earth observation data.
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E.
Mikulski Archive for Space Telescopes
The Mikulski Archive for Space Telescopes is NASA’s primary online repository for astronomical data from major space-based observatories, including Hubble and other missions.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: MICROSCOPE satellite mission Target entity description: The MICROSCOPE satellite mission was a French-led space experiment designed to test the validity of Einstein’s equivalence principle with unprecedented precision by comparing the free fall of different materials in orbit.
-
A.
SCISAT-1
SCISAT-1 is a Canadian scientific satellite dedicated primarily to studying Earth's upper atmosphere and monitoring ozone layer chemistry and related trace gases.
-
B.
NEOSSat
NEOSSat is a Canadian microsatellite designed to detect and track near-Earth asteroids and space debris from orbit.
-
C.
Mars Orbiter Mission
Mars Orbiter Mission is India’s first interplanetary spacecraft, launched by ISRO to orbit Mars and demonstrate the country’s capability in deep space exploration at remarkably low cost.
-
D.
Deep Space Climate Observatory
The Deep Space Climate Observatory (DSCOVR) is a NOAA and NASA satellite positioned at the Sun–Earth L1 Lagrange point that continuously monitors solar wind conditions and provides real-time space weather and Earth observation data.
-
E.
Mikulski Archive for Space Telescopes
The Mikulski Archive for Space Telescopes is NASA’s primary online repository for astronomical data from major space-based observatories, including Hubble and other missions.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
equivalence principle test
ⓘ
physics experiment ⓘ satellite mission ⓘ space experiment ⓘ |
| achievedPrecision | equivalence principle tested to about 10^-15 ⓘ |
| acronymFor |
MICROSCOPE satellite mission
self-linksurface differs
ⓘ
surface form:
MICRO-Satellite à traînée Compensée pour l’Observation du Principe d’Équivalence
|
| collaboratingInstitution |
Centre National de la Recherche Scientifique
ⓘ
surface form:
CNRS
European Space Agency ⓘ
surface form:
ESA
OCA ⓘ ONERA ⓘ |
| countryOfOrigin | France ⓘ |
| dataRelease | final results published 2022 ⓘ |
| dragCompensation | active ⓘ |
| fullName | MICROSCOPE satellite mission self-linksurface differs ⓘ |
| fundingAgency |
CNES
ⓘ
French Ministry of Higher Education and Research ⓘ |
| improvedConstraint | tightened limits on violation of weak equivalence principle ⓘ |
| instrument | differential electrostatic accelerometers ⓘ |
| launchDate | 2016-04-25 ⓘ |
| launchLocation |
Kourou
ⓘ
surface form:
Kourou, French Guiana
|
| launchSite | Guiana Space Centre ⓘ |
| launchVehicle |
Soyuz rocket
ⓘ
surface form:
Soyuz ST-A
|
| leadAgency | CNES ⓘ |
| mass | approximately 300 kg ⓘ |
| measurementType | differential acceleration between test masses ⓘ |
| missionEnd | 2023 ⓘ |
| missionStatus | completed ⓘ |
| operator | CNES ⓘ |
| orbitAltitude | about 710 km ⓘ |
| orbitInclination | about 98 degrees ⓘ |
| orbitType | low Earth orbit ⓘ |
| payload | T-SAGE instrument ⓘ |
| primaryObjective | test Einstein’s weak equivalence principle ⓘ |
| publicationVenue |
Classical and Quantum Gravity
ⓘ
Physical Review Letters ⓘ |
| relatedConcept | Eötvös experiment ⓘ |
| relatedMission | STEP (Satellite Test of the Equivalence Principle) ⓘ |
| relatedTheory | metric theories of gravity ⓘ |
| result | no violation of equivalence principle detected within experimental accuracy ⓘ |
| scientificDiscipline |
fundamental physics
ⓘ
gravitation ⓘ |
| scientificGoal | compare free fall of different materials in orbit ⓘ |
| spacecraftBus | Myriade platform ⓘ |
| testMassMaterial |
platinum-rhodium alloy
ⓘ
titanium alloy ⓘ |
| testsConcept | equivalence of inertial and gravitational mass ⓘ |
| testsTheory | general relativity ⓘ |
| usesTechnology | drag-free control system ⓘ |
How these facts were elicited
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Subject: MICROSCOPE satellite mission Description of subject: The MICROSCOPE satellite mission was a French-led space experiment designed to test the validity of Einstein’s equivalence principle with unprecedented precision by comparing the free fall of different materials in orbit.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.