Hubble Space Telescope Fine Guidance Sensors

E238788

astrometric instrument fine guidance sensor space telescope instrument

The Hubble Space Telescope Fine Guidance Sensors are high-precision optical instruments that both keep Hubble accurately pointed at astronomical targets and serve as scientific tools for measuring stellar positions and distances.

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All labels observed (7)

Label	Occurrences
Fine Guidance Sensors	2
Hubble fine guidance sensors	2
Hubble Space Telescope Fine Guidance Sensors canonical	1
Hubble Space Telescope fine guidance sensor	1
Hubble pointing and guidance systems	1
Hubble star trackers	1
fine guidance sensor	1

Statements (50)

Predicate	Object
instanceOf	astrometric instrument ⓘ fine guidance sensor ⓘ space telescope instrument ⓘ
commissioned	1990 ⓘ
developedBy	Goddard Space Flight Center ⓘ surface form: NASA Goddard Space Flight Center industry contractors ⓘ
enables	long-exposure imaging stability ⓘ measurement of Hubble constant via parallaxes ⓘ precise target acquisition ⓘ
fieldOfView	narrow field around guide star ⓘ
locatedOn	Hubble Space Telescope optical bench ⓘ
measurementPrecision	milliarcsecond level ⓘ
mountedAt	Hubble Space Telescope focal plane ⓘ
numberOfUnits	3 ⓘ
operatedBy	NASA ⓘ Space Telescope Science Institute ⓘ
operationalMode	coarse track ⓘ fine lock ⓘ transfer scan for astrometry ⓘ
partOf	Hubble Space Telescope ⓘ
primaryFunction	attitude control ⓘ fine pointing of Hubble Space Telescope ⓘ
requires	bright guide stars ⓘ
roleInMission	backup science instruments ⓘ primary pointing reference sensors ⓘ
scienceContribution	calibration of cosmic distance scale ⓘ detection of perturbations from unseen companions ⓘ refinement of stellar proper motions ⓘ
secondaryFunction	astrometry ⓘ measurement of binary star orbits ⓘ measurement of stellar parallaxes ⓘ measurement of stellar positions ⓘ
supportsInstrument	Advanced Camera for Surveys ⓘ Cosmic Origins Spectrograph ⓘ Faint Object Camera ⓘ Faint Object Spectrograph ⓘ Near Infrared Camera and Multi-Object Spectrometer ⓘ Space Telescope Imaging Spectrograph ⓘ Wide Field Camera 3 ⓘ
upgradedDuring	Hubble Servicing Mission 2 ⓘ Hubble Space Telescope Servicing Mission 3A ⓘ surface form: Hubble Servicing Mission 3A Hubble Space Telescope Servicing Mission 3B ⓘ surface form: Hubble Servicing Mission 3B Hubble Servicing Mission 4 ⓘ
usedFor	fine lock on guide stars ⓘ high-precision absolute astrometry ⓘ high-precision relative astrometry ⓘ maintaining stable pointing during observations ⓘ
uses	Koesters prism interferometers ⓘ interferometry ⓘ
wavelengthRange	visible light ⓘ

Referenced by (9)

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

STS-82 → performedMaintenanceOn → Hubble Space Telescope Fine Guidance Sensors ⓘ

Faint Object Spectrograph → usedWith → Hubble Space Telescope Fine Guidance Sensors ⓘ

this entity surface form: Hubble pointing and guidance systems

Servicing Mission 4 → servicedSubsystem → Hubble Space Telescope Fine Guidance Sensors ⓘ

this entity surface form: Hubble fine guidance sensors

Hubble Space Telescope Servicing Mission 3A → replacedComponent → Hubble Space Telescope Fine Guidance Sensors ⓘ

this entity surface form: Hubble Space Telescope fine guidance sensor

Hubble Space Telescope science instruments → include → Hubble Space Telescope Fine Guidance Sensors ⓘ

this entity surface form: Fine Guidance Sensors

Hubble Space Telescope science instruments → supportInstrument → Hubble Space Telescope Fine Guidance Sensors ⓘ

this entity surface form: Fine Guidance Sensors

Reaction Wheel Assembly on Hubble Space Telescope → interactsWith → Hubble Space Telescope Fine Guidance Sensors ⓘ

this entity surface form: Hubble star trackers

Reaction Wheel Assembly on Hubble Space Telescope → interactsWith → Hubble Space Telescope Fine Guidance Sensors ⓘ

this entity surface form: Hubble fine guidance sensors

Hubble Servicing Mission 4 → replacedComponent → Hubble Space Telescope Fine Guidance Sensors ⓘ

this entity surface form: fine guidance sensor