| A |
| ACS |
Attitude Control System |
| AGN |
Active Galactic Nucleus/Nuclei |
| AKBAR |
Astrophysical Knowledge Base for Analysis and Reporting |
| ARF |
Ancillary Response Function |
| ASCII |
American Standard Code for Information Interchange |
| ASI |
Agenzia Spaziale Italiana - Italian Space Agency |
| ASIC |
Application Specific Integrated Circuit |
| AT |
Automated Target |
| ATS |
Absolute Time Sequence; the 5-day timeline uploaded to Swift. |
| B |
| BA |
Burst Advocate |
| BAT |
Burst Alert Telescope |
| BATSE |
Burst And Transient Source Experiment |
| BeppoSAX |
See SAX. "Beppo" in honour of Giuseppe Occhialini |
| C |
| CALDB |
Calibration DataBase |
| CCD |
Charge Coupled Device |
| CGRO |
Compton Gamma-Ray Observatory |
| Co-I |
Co-Investigator |
| CZT or CdZnTe |
Cadmium-Zinc-Telluride |
| D |
| Dec |
Declination |
| DEM |
Digital Electronics Module |
| DPU |
Digital Processing Unit |
| DTS |
Data Transfer System |
| E |
| EMI/EMC |
ElectroMagnetic Interference/ElectroMagnetic Compatibility |
| ESA |
European Space Agency |
| EST |
Eastern Standard Time |
| ESTEC |
European Space and Technology Centre |
| F |
| FAQs |
Frequently Asked Questions |
| FITS |
Flexible Image Transport System |
| FoM |
Figure of Merit |
| FOT |
Flight Operations Team |
| FoV |
Field of View |
| FPCA |
Focal Plane Camera Assembly |
| FT |
Faulkes Telescope |
| FWHM |
Full-Width at Half-Maximum |
| G |
| GCN |
Gamma-ray burst Coordinates Network |
| GI |
Guest Investigator |
| GIF |
Graphics Interchange Format |
| GRB |
Gamma-Ray Burst |
| GSFC |
Goddard Space Flight Center |
| H |
| HEASARC |
High Energy Astrophysics Science Archive Research Center |
| HETE |
High-Energy Transient Explorer |
| HST |
Hubble Space Telescope |
| I |
| ICU |
Instrument Control Unit |
| IDS |
Instrument Duty Specialist |
| Integral |
INTErnational Gamma-Ray Astrophysics Laboratory |
| IPN |
Inter-Planetary Network |
| IRAF |
Image Reduction and Analysis Facility |
| ISAC |
Italian Swift Archive Centre |
| ISAS |
Institute of Space and Astronautical Science |
| J |
| J |
Joule (unit of energy; 1J = 107erg) |
| JPEG |
Joint Photographic Experts Group |
| K |
| KSC |
Kennedy Space Center |
| L | |
| LANL |
Los Alamos National Laboratory |
| LEDAS |
LEicester Database and Archive Service |
| LEO or L&EO |
Launch and Early Orbit |
| LIGO |
Laser Interferometer Gravitational-wave Observatory |
| LISA |
Laser Interferometer Space Antenna |
| LT |
Liverpool Telescope |
| LU |
University of Leicester |
| M |
| MCP |
Micro-Channel Plate |
| MIC |
MCP Intensified CCD |
| MOC |
Mission Operations Centre (at PSU) |
| MPE |
Max-Planck Institut für extraterrestrische Physik |
| MSSL |
Mullard Space Science Laboratory |
| N |
| NASA |
National Aeronautics and Space Administration |
| NFI |
Narrow-Field Instruments |
| NSC |
National Space Centre (in Leicester) |
| O |
| OBIF |
Optical Bench Interface Flange |
| ODE |
Observatory Duty Engineer |
| ODFs |
Observation Data Files |
| ODS |
Observatory Duty Scientist |
| OGIP |
Office of Guest Investigator Programs |
| OM |
Optical Monitor (on-board XMM) |
| P |
| PDMP |
Project Data Management Plan |
| PI |
Principal Investigator |
| PIMMS |
Portable Interactive Multi-Mission Simulator |
| PNG |
Portable Network Graphic |
| PPST |
Pre-Planned Science Timeline |
| PSU or Penn State |
Pennsylvania State University |
| Q |
| QE |
Quantum Efficiency |
| R |
| RA |
Right Ascension |
| RMF |
Response Matrix File |
| RXTE |
Rossi X-ray Timing Explorer |
| S |
| SAA |
South Atlantic Anomaly |
| SAAO |
South Atfrican Astronomical Observatory |
| SAX |
Satellite per Astronomia X |
| SCDE |
Space-Craft Duty Engineer |
| SDC |
Swift Data Centre (at GSFC) |
| SERS |
Spacecraft Emergency Response System |
| SOT |
Science Operations Team |
| SSC |
Swift Science Centre |
| SWRI |
South West Research Institute |
| T |
| TAM |
Telescope Alignment Monitor |
| TDRSS |
Tracking and Data Relay Satellite System |
| TLE |
Two Line Ephemeris |
| TOO or ToO |
Target of Opportunity |
| U |
| UKSSDC |
United Kingdom Swift Science Data Centre |
| USN |
Universal Space Network |
| UTC |
Universal Time Coordinate |
| UV |
Ultra-Violet |
| UVOT |
UV and Optical Telescope |
| V |
| W |
| WASP |
Wide Area Sky Patrol / Wide Area Search for Planets |
| WCS |
World Coordinate System |
| WFC |
Wide-Field Camera |
| X |
| XBSS |
XRT Burst Support Scientist |
| XDS |
XRT Duty Specialist |
| XMM or XMM-Newton |
X-ray Multi-Mirror mission. "Newton" in honour of Sir Isaac Newton |
| XRT |
X-Ray Telescope |
| Y |
| Z |
| ZP |
Zero Point |
