Sun–Earth L1 Lagrange point

E193272

The Sun–Earth L1 Lagrange point is a gravitationally stable location between the Earth and the Sun where spacecraft can maintain a relatively fixed position with minimal fuel, ideal for continuous solar and space weather observations.

All labels observed (7)

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf Lagrange point ⓘ
celestial mechanics equilibrium point ⓘ
advantage minimal Earth occultation of the Sun ⓘ
reduced fuel consumption for long-term solar monitoring ⓘ
uninterrupted view of the Sun ⓘ
benefitForEarth advance warning of geomagnetic storms ⓘ
monitoring of solar activity affecting satellites and power grids ⓘ
coOrbitsWith Earth ⓘ
coordinateSystem rotating frame co-rotating with Earth around the Sun ⓘ
definedBy restricted three-body problem of Sun and Earth ⓘ
distanceFromEarth about 0.01 astronomical units ⓘ
approximately 1.5 million kilometers ⓘ
distanceFromSun approximately 1 astronomical unit minus 1.5 million kilometers ⓘ
gravitationalInfluenceFrom Earth ⓘ
Sun ⓘ
labelInSystem L1 ⓘ
liesOnLineConnecting Sun and Earth ⓘ
locatedIn Sun–Earth system ⓘ
linked to: Solar System
numberInSystem one of five Lagrange points in the Sun–Earth system ⓘ
observes interplanetary magnetic field ⓘ
solar corona ⓘ
solar photosphere ⓘ
solar wind ⓘ
orbitalPeriod approximately 1 year ⓘ
orbits Sun ⓘ
positionRelativeToEarth between Earth and the Sun ⓘ
positionRelativeToSun between Sun and the Earth ⓘ
primaryUseAgency ESA ⓘ
NASA ⓘ
scientificDiscipline astrophysics ⓘ
celestial mechanics ⓘ
space weather science ⓘ
spacecraftLocated ACE ⓘ
Advanced Composition Explorer ⓘ
DSCOVR ⓘ
Deep Space Climate Observatory ⓘ
SOHO ⓘ
Solar and Heliospheric Observatory ⓘ
linked to: SOHO mission

Wind spacecraft ⓘ
stabilityDescription stable in the rotating frame but requires station-keeping ⓘ
stabilityType metastable ⓘ
stationKeepingDeltaV low compared to low Earth orbit missions of similar duration ⓘ
typicalSpacecraftOrbit Lissajous orbit ⓘ
halo orbit ⓘ
usedFor continuous solar observation ⓘ
early warning of solar storms ⓘ
heliophysics research ⓘ
space weather monitoring ⓘ

How these facts were elicited

Referenced by (21)

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

Deep Space Climate Observatory → orbit → Sun–Earth L1 Lagrange point ⓘ
SOHO → librationPoint → Sun–Earth L1 ⓘ
subject linked to: SOHO mission
linked to: Sun–Earth L1 Lagrange point
ACE spacecraft → location → Sun–Earth L1 Lagrange point ⓘ
ACE spacecraft → orbitsBody → Sun–Earth L1 Lagrange point ⓘ
Triana → orbit → Sun–Earth L1 Lagrange point ⓘ
DSCOVR → orbit → Sun–Earth L1 Lagrange point ⓘ
subject linked to: Triana
EPIC camera → locatedAt → Sun–Earth L1 Lagrange point ⓘ
EPIC camera → orbits → Sun–Earth L1 Lagrange point ⓘ
NISTAR → operatedFrom → Sun–Earth L1 Lagrange point ⓘ
NISTAR → orbits → Sun–Earth L1 point halo orbit ⓘ
linked to: Sun–Earth L1 Lagrange point
National Institute of Standards and Technology Advanced Radiometer → locatedAtLagrangePoint → Sun–Earth L1 ⓘ
linked to: Sun–Earth L1 Lagrange point
Lissajous orbit → isUsedAt → Sun–Earth L1 point ⓘ
linked to: Sun–Earth L1 Lagrange point
SOHO → orbits → Sun–Earth L1 Lagrange point ⓘ
Wind → operationalRegion → Sun–Earth L1 point vicinity ⓘ
subject linked to: Wind spacecraft
linked to: Sun–Earth L1 Lagrange point
Solar Wind Electron Proton Alpha Monitor → spacecraftOrbit → L1 Lagrange point ⓘ
linked to: Sun–Earth L1 Lagrange point
Electron Proton Alpha Monitor → spacecraftLocation → Sun–Earth L1 Lagrange point ⓘ
Explorer 71 → location → Sun–Earth L1 Lagrange point vicinity ⓘ
linked to: Sun–Earth L1 Lagrange point
L1 → alsoKnownAs → Sun–Earth L1 ⓘ
linked to: Sun–Earth L1 Lagrange point
EPIC → hostOrbitLocation → Sun–Earth L1 point ⓘ
linked to: Sun–Earth L1 Lagrange point
ACE → location → Sun–Earth L1 Lagrange point vicinity ⓘ
linked to: Sun–Earth L1 Lagrange point
Aditya-L1 → orbits → Sun–Earth L1 Lagrange point ⓘ