| HANDY ACRONYM LIST | |
| ACA | Aspect Camera Assembly |
| ACIS | AXAF CCD Imaging Spectrometer (IPI: G. Garmire) |
| AGASC | AXAF Guide and Aspect Star Catalog |
| ASC | AXAF Science Center |
| ASCDS | ASC Data System |
| AXAF | Advanced X-ray Astrophysics Facility |
| CLI | Command Line Interface |
| CSR | Center for Space Research (at MIT) |
| EKC | Eastman Kodak Corporation |
| FPC | Flow Proportional Counter |
| FTOOLS | A suite of X-ray analysis software |
| GESS | Grating Element Support Structure |
| GO | General Observer (anyone but a GTO) |
| GTO | Guaranteed-Time Observer (SI teams, TS, IDSs) |
| GUI | Graphical User Interface |
| HEG | High Energy Gratings (part of the HETG instrument) |
| HESF | High Energy Suppression Filter |
| HETG | High Energy Transmission Gratings (IPI: C. Canizares) |
| HRC | High Resolution Camera (IPI: S. Murray) |
| HRMA | High Resolution Mirror Assembly (telescope) |
| HSI | High Speed Imager |
| HXDS | HRMA X-ray Detection System (at the XRCF) |
| IDS | InterDisciplinary Scientist (A. Fabian, S. Holt, R. Giacconi, J. Linsky, R. Mushotzky, A. Wilson ) |
| IPI | Instrument Principal Investigator (A. Brinkman, C. Canizares, G. Garmire, S. Murray) |
| LESF | Low Energy Suppression Filter |
| LETG | Low Energy Transmission Gratings (IPI: A. Brinkman) |
| MARX | Model of AXAF Response to X-rays |
| MEG | Medium Energy Gratings (part of the HETG instrument) |
| MPE | Max Planck Institut für Extraterrestrische Physik |
| MSFC | Marshall Space Flight Center (NASA) |
| MST | Mission Support Team |
| NASA | National Aeronautics and Space Administration |
| NRA | NASA Research Announcement |
| OCC | Operations Control Center (for AXAF at SAO) |
| OOV | On-Orbit Verification |
| PIMMS | Portable Interactive Multi-Mission Simulator software |
| PROS | Post-Reduction Off-Line Software |
| PS | Project Scientist (M. Weisskopf) |
| PSF | Point Spread Function |
| QE | Quantum Efficiency |
| SAO | Smithsonian Astrophysical Observatory |
| SI | Science Instrument (detector) |
| SRON | Stichting RuimteOnderzoek Nederland |
| SSD | Solid State Detector |
| SWG | Science Working Group |
| TRW | TRW, Inc. |
| TS | Telescope Scientist (L. Van Speybroeck) |
| XDS | X-ray Detection System (at XRCF) |
| XSPEC | An X-ray spectral fitting package |
| XRCF | X-ray Calibration Facility |
| XSS | X-ray Source System (at the XRCF) |