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WFC3 Instrument Handbook for Cycle 24 |
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ADU: Analog-to-digital UnitADC: Analog to digital ConverterABν: Correction to ABMAG to account for the fact that the source spectrum is not constant in Fν (ABMAG=V+ABν)ACS: Advanced Camera for SurveysAPT: Astronomer’s Proposal ToolaXe: Spectroscopic Data Extraction SoftwareBOP: Bright Object Protectioncalwf3: WFC3 calibration pipeline softwareCCD: Charge Coupled Device. Solid-state, light detecting deviceCDS: Correlated Double SamplingCOS: Cosmic Origins SpectrographCP: Call for ProposalsCR: Cosmic rayCR-SPLIT: Division of a CCD exposure into shorter exposures to be used for cosmic ray rejectionCSM: Channel select mechanismCTE: Charge transfer efficiencyCVZ: Continuous viewing zoneDCL: Detector Characterization Laboratory at NASA GSFCDN: Data numberDQ: Data qualityEE: Encircled energyETC: Exposure Time Calculator. ETCs are Web-based tools which can be accessed through the WFC3 webpages.FET: Field-effect TransistorFGS: Fine Guidance SensorsFITS: Flexible Image Transport SystemFOV: Field of viewFPA: Focal-Plane ArrayFSM: Filter select mechanismFWHM: Full width at half maximumGO: General ObserverGSC: Guide Star CatalogGSFC: NASA’s Goddard Space Flight CenterHelp Desk: Facility for getting help on HST related topics via email. help@stsci.edu.HRC: High Resolution Channel of ACS (non-operational)HST: Hubble Space TelescopeIPT: Integrated Product TeamIR: Infrared; also IR channel of WFC3IRAF: Image Reduction and Analysis System. The environment in which STSDAS operates.ISR: Instrument Science Report. Available at the WFC3 website.K: Degree KelvinMBE: Molecular-beam EpitaxialMPP: Multi Pinned Phased, a CCD mode that reduces dark current rateMTF: Modulation Transfer FunctionMUX: MultiplexerNICMOS: Near-Infrared Camera and Multi-Object SpectrographNUV: Near ultraviolet (~2000 to 4000 е)OTA: Optical Telescope AssemblyPASP: Publications of the Astronomical Society of the PacificPhase I proposal: A proposal for observing time on HSTPI: Principal investigatorPOM: Pick- off MirrorPRF: Pixel Response FunctionPSF: Point-spread function.PyRAF: version of IRAF implemented in the Python languageQE: Quantum Efficiencyramp: A sequence of non-destructive readouts comprising a single IR exposurerms: Root mean squareSAA: South Atlantic AnomalySBC: Solar-Blind Channel of ACSSDSS: Sloan Digital Sky SurveySED: Spectral-energy DistributionSIAF: Science Instrument Aperture FileSM4: Servicing Mission 4SMOV: Servicing Mission Observatory VerificationS/N: signal-to-noise ratioSOFA: Selectable Optical Filter AssemblySOC: Scientific Oversight CommitteeST-ECF: Space Telescope European Coordinating FacilitySTIS: Space Telescope Imaging SpectrographSTScI: Space Telescope Science InstituteSTSDAS: Space Telescope Science Data Analysis System. The complete suite of IRAF data analysis and calibration routines used to process HST data.synphot: STSDAS synthetic photometry (IRAF) software packageTAC: Telescope Allocation CommitteeTEC: Thermal Electric CoolersUV: UltravioletUVIS: Ultraviolet and Visual (CCD channel of WFC3)WFC: Wide-Field Channel of ACSWFC3: Wide Field Camera 3WFPC2: Wide Field Planetary Camera 2. Replacement for WF/PC-1 installed during first servicing mission of December 1993.