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Gravity Probe A

Gravity Probe A (GP-A) was a space-based experiment to test the equivalence principle, a feature of Einstein's theory of relativity. It was performed jointly by the Smithsonian Astrophysical Observatory and the National Aeronautics and Space Administration. The experiment sent a hydrogen maser—a highly accurate frequency standard—into space to measure…

Standards, Background & Experimental setup

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Apogee
10,224 km (6,353 mi)
COSPAR ID
GRAVR-A
Deactivated
18 June 1976 (1976-06-18)
Disposal
Decommissioned
Launch date
18 June 1976 (1976-06-18)
Launch mass
60 kg (130 lb)

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Overview

Background

Experimental setup

Results

Advanced semantic analysis

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Map overview Semantic statistics

Gravity Probe A

Nodes30
Edges29
Triples49
Avg. degree1.93
Density0.066667
Components1

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Gravity Probe A

Top relations

related to Time dilation · 13
Gravity Probe A → Earth's, Einstein, Einstein's, From, Gravity Probe, In, Rindler, Such, The Schwarzschild, There, This, Time, Under Einstein's
related to Experimental setup · 9
Gravity Probe A → Doppler, Earth, Gravity Probe, In, Maser, On, Since, The, This
related to External links · 6
Gravity Probe A → Alabama, Collection, Gravity Probe, Huntsville Archives, Special Collections, The University
related to Results · 5
Gravity Probe A → Before, Doppler, Earth, Gravity Probe, The
related to background · 3
Gravity Probe A → Albert Einstein's, Gravity Probe, The
Apogee · 1
Gravity Probe A → 10,224 km (6,353 mi)
COSPAR ID · 1
Gravity Probe A → GRAVR-A
Deactivated · 1
Gravity Probe A → 18 June 1976 (1976-06-18)
Disposal · 1
Gravity Probe A → Decommissioned
Launch date · 1
Gravity Probe A → 18 June 1976 (1976-06-18)

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Important terminology

gravitational time equivalence principle probe rocket relativity experiment maser gravity accelerating rate einstein's dilation signal reference frame space spacetime doppler

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Gravity Probe AApogee10,224 km (6,353 mi)1.00infobox
Gravity Probe ACOSPAR IDGRAVR-A1.00infobox
Gravity Probe ADeactivated18 June 1976 (1976-06-18)1.00infobox
Gravity Probe ADisposalDecommissioned1.00infobox
Gravity Probe ALaunch date18 June 1976 (1976-06-18)1.00infobox
Gravity Probe ALaunch mass60 kg (130 lb)1.00infobox
Gravity Probe ALaunch siteWallops Flight Facility1.00infobox
Gravity Probe AMission duration1 h 51 m1.00infobox
Gravity Probe AMission typeAstrophysics1.00infobox
Gravity Probe AOperatorNASA1.00infobox
Gravity Probe APower22 W1.00infobox
Gravity Probe ARocketScout1.00infobox
Gravity Probe ASpacecraftGP-A1.00infobox

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