Fine Guidance Sensor
E59347
The Fine Guidance Sensor is a high-precision pointing and stabilization instrument on the James Webb Space Telescope that locks onto guide stars to keep the observatory accurately aimed during observations.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
James Webb Space Telescope instrument
→
astronomical instrument → guidance sensor → |
| acronymExpansion |
Fine Guidance Sensor
→
|
| alsoKnownAs |
FGS
→
|
| contributesTo |
pointing stability of James Webb Space Telescope
→
|
| countryOfOrigin |
Canada
→
|
| dataUsedBy |
attitude control system
→
|
| detectorArraySize |
2048 x 2048 pixels
→
|
| detectorType |
HgCdTe infrared detector
→
|
| developedBy |
COM DEV International
→
Canadian Space Agency → Honeywell Aerospace → |
| developedFor |
NASA
→
|
| enables |
high-precision imaging
→
long-exposure observations → stable spectroscopy → |
| fieldOfView |
approximately 2.4 arcminutes by 2.4 arcminutes
→
|
| firstLightDate |
2022-02
→
|
| guidingMode |
can track guide stars during telescope slews
→
locks onto single guide star → |
| launchDate |
2021-12-25
→
|
| launchSite |
Guiana Space Centre
→
|
| launchVehicle |
Ariane 5 ECA
→
|
| locatedOn |
integrated science instrument module
→
|
| manufacturer |
Honeywell Aerospace
→
|
| mission |
James Webb Space Telescope mission
→
|
| operatedBy |
Space Telescope Science Institute
→
|
| operationalTemperature |
approximately 40 kelvin
→
|
| orbit |
Sun–Earth L2 halo orbit
→
|
| partOf |
James Webb Space Telescope
→
|
| pointingAccuracy |
better than 5 milliarcseconds
→
|
| primaryFunction |
attitude control support
→
fine guidance → high-precision pointing → stabilization → |
| provides |
attitude measurements
→
fine pointing information → |
| roleInAttitudeControl |
provides fine pointing error signals to attitude control system
→
|
| sharesModuleWith |
Near-Infrared Imager and Slitless Spectrograph
→
|
| spacecraft |
James Webb Space Telescope
→
|
| status |
operational
→
|
| supports |
all JWST science instruments
→
|
| supportsObservationModes |
imaging
→
spectroscopy → time-series observations → |
| uses |
guide stars
→
|
| wavelengthRange |
0.8 to 5.0 micrometres
→
|
Referenced by (5)
| Subject (surface form when different) | Predicate |
|---|---|
|
Fine Guidance Sensor
→
|
acronymExpansion |
|
Near Infrared Imager and Slitless Spectrograph
→
|
collocatedWith |
|
FGS/NIRISS
→
|
hasComponent |
|
James Webb Space Telescope
→
|
instrumentType |
|
Near Infrared Imager and Slitless Spectrograph
→
|
sharesHardwareWith |