Advanced Camera for Surveys Instrument Handbook for Cycle 14
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| Advanced Camera for Surveys Instrument Handbook for Cycle 14 | |||||
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Glossary
The following terms and acronyms are used in this Handbook.
- A-D: Analog to digital
- ABMAG: -2.5 log (F
) - 48.60 where F
- AB
- ABC: Aberrated Beam Coronagraph
- ACS: Advanced Camera for Surveys
- APT: Astronomer's Proposal Tools
- BOP: Bright-Object Protection
- calacs: ACS calibration pipeline software
- CCD: Charge Coupled Device. Solid-state, light detecting device
- CDBS: Calibration Data Base System for maintaining reference files and tables used to calibrate HST observational datasets.
- CP: Call for Proposals
- CR: Cosmic ray
- CR-SPLIT: Division of a CCD exposure into shorter exposures to be used for cosmic ray rejection
- CS: Contact Scientist
- CTE: Charge transfer efficiency
- CVZ: Continuous viewing zone
- DQ: Data quality
- DN: Data number
- ETC: Exposure Time Calculator. ETCs are web-based tools which can be accessed through the ACS web pages.
- ERO: Early release observations
- FAQ: Frequently asked questions
- FGS: Fine Guidance Sensors
- FITS: Flexible Image Transport System. A generic IEEE and NASA defined standard file format used for storing image data.
- FOC: Faint Object Camera
- FOS: Faint Object Spectrograph
- FOV: Field of view
- FSW: Flight software
- FTP: File Transfer Protocol. Basic tool used to retrieve files from a remote system. Ask your system manager for information about using FTP.
- FUV: Far ultraviolet (~912-2000Å)
- FWHM: Full width at half maximum
- GEIS: Generic Edited Information Set. Multigroup format used by STSDAS for storing some HST image data.
- GHRS: Goddard High-Resolution Spectrograph
- GO: General Observer
- GSC: Guide Star Catalog
- GTO: Guaranteed Time Observer
- HDA: Hubble Data Archive
- Help Desk: Facility for getting help on HST related topics via email. help@stsci.edu.
- HRC: High Resolution Channel
- HSP: High-Speed Photometer
- HST: Hubble Space Telescope
- HUT: Hopkins Ultraviolet Telescope
- ICD: Interface control document. Defines data structures used between software or systems to ensure compatibility.
- IDT: Investigation Definition Team
- IHB: Instrument Handbook
- IR: Infrared
- IRAF: Image Reduction and Analysis System. The environment in which STSDAS operates.
- IS: Instrument Scientist
- ISR: Instrument Science Report
- IUE: International Ultraviolet Explorer
- K: Degree Kelvin
- LMC: Large Magellanic Cloud
- MAMA: Multi-Anode Microchannel Array
- MCP: Microchannel Plate
- ND: Neutral density
- NICMOS: Near-Infrared Camera and Multi-Object Spectrograph
- NUV: Near ultraviolet (~2000-4000Å)
- OSS: Observation Support System
- OTA: Optical Telescope Assembly
- OTFC: On-the-Fly Calibration
- OTFR: On-the-Fly Recalibration
- PC: Program Coordinator
- Phase I proposal: A proposal for observing time on HST
- Phase II program: An approved HST program; includes precise detail of how program is to be executed
- PI: Principal investigator
- PSF: Point-spread function.
- PyRAF: version of IRAF implemented in the Python language
- QE: Quantum efficiency
- QEH: Quantum efficiency hysteresis
- QSO: Quasi-stellar object
- RA: Right ascension
- reference file: data file containing ACS parameters or calibration information which is used by the calibration pipeline
- rms: Root mean square
- SAA: South Atlantic anomaly
- SBC: Solar-Blind Channel
- SITe: Scientific Image Technologies; company that designed the ACS CCDs
- SMOV: Servicing Mission Observatory Verification
- S/N: Signal-to-noise ratio
- ST-ECF: Space Telescope European Coordinating Facility
- STAN: Space Telescope Analysis Newsletter
- STIS: Space Telescope Imaging Spectrograph
- STMAG: STScI magnitude system; -2.5 log (F
) -21.10 where F
- STScI: Space Telescope Science Institute
- STSDAS: Space Telescope Science Data Analysis System. The complete suite of IRAF data analysis and calibration routines used to process HST data.
- SV: Science verification. Process of taking observations that can be used for HST instrument calibration.
- synphot: STSDAS synthetic photometry (IRAF) software package
- TAC: Telescope Allocation Committee
- TIR: Technical Instrument Report
- URL: Uniform resource locator. Address for WWW.
- UV: Ultraviolet
- WFC: Wide-Field Channel
- WF/PC: Wide Field/Planetary Camera
- WFPC2: Wide Field Planetary Camera-2. Replacement for WF/PC installed during first servicing mission of December 1993.
- WWW: World Wide Web. Hypertext-oriented method for finding and retrieving information over the Internet.
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Space Telescope Science Institute http://www.stsci.edu Voice: (410) 338-1082 help@stsci.edu |