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.

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Predicate Object
instanceOf equivalence principle test
physics experiment
satellite mission
space experiment
achievedPrecision equivalence principle tested to about 10^-15
acronymFor MICRO-Satellite à traînée Compensée pour l’Observation du Principe d’Équivalence
collaboratingInstitution CNRS
ESA
OCA
ONERA
countryOfOrigin France
dataRelease final results published 2022
dragCompensation active
fullName MICROSCOPE satellite mission
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, French Guiana
linked to: Kourou
launchSite Guiana Space Centre
launchVehicle Soyuz ST-A
linked to: Soyuz rocket
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

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Referenced by (10)

Full triples — surface form annotated when it differs from this entity's canonical label.

equivalence principle testedBy MICROSCOPE satellite mission
MICROSCOPE fullName MICROSCOPE satellite mission
subject linked to: MICROSCOPE satellite mission
MICROSCOPE acronymFor MICRO-Satellite à traînée Compensée pour l’Observation du Principe d’Équivalence
subject linked to: MICROSCOPE satellite mission
linked to: MICROSCOPE satellite mission
OCA participatedIn MICROSCOPE mission
linked to: MICROSCOPE satellite mission
OCA collaboratesOn MICROSCOPE mission
linked to: MICROSCOPE satellite mission
OCA notableProject MICROSCOPE space mission
linked to: MICROSCOPE satellite mission
T-SAGE instrument partOf MICROSCOPE mission
linked to: MICROSCOPE satellite mission
T-SAGE instrument aboard MICROSCOPE satellite
linked to: MICROSCOPE satellite mission
T-SAGE instrument mountedOn MICROSCOPE satellite drag-free platform
linked to: MICROSCOPE satellite mission
T-SAGE instrument developedFor French MICROSCOPE space mission
linked to: MICROSCOPE satellite mission