Acronym | Definition |
AAVSO | American Association of Variable Stars Observers |
AE | Analog Electronics |
AO | Announcement of Opportunity |
AGN | Active Galactic Nuclei |
ARF | Ancillary Response File |
ARK | Astrophysics Research Knowledgebase |
ASCA | Advanced Satellite for Cosmology and Astrophysics |
ASM | All-Sky Monitor (on RXTE) |
BGD | Background |
BGO | Bismuth Germanate |
BI | Back-Illuminated |
CALDB | Calibration Database |
CCD | Charge-Coupled Device |
CI | Charge Ingestion |
Co-I | Co-investigator |
CPU | Central Processing Unit |
CTE | Charge Transfer Efficiency |
CTI | Charge Transfer Inefficiency |
CXB | Cosmic X-ray Background |
DDT | Director Discretionary Time |
DE | Digital Electronics |
Dec | Declination |
DP | Data Processor |
DSN | Deep Space Network |
EA | Effective Area |
EEF | Encircled Energy Function |
EOB | Extensible Optical Bench |
EPIC | European Photon Imaging Camera (on XMM-Newton) |
ESA | European Space Agency |
FI | Front-Illuminated |
FWHM | Full-Width Half-Maximum |
FITS | Flexible Image Transport System |
FOV | Field Of View |
FSA | Frame Store Area |
FTOOLS | FITS Tools |
Acronym | Definition |
GO | Guest Observer |
GOF | Guest Observer Facility |
GRB | Gamma-Ray Burst |
GSFC | Goddard Space Flight Center |
GSO | Gadolinium Silicate |
HEASARC | High Energy Astrophysics Science Archive Research Center |
HESS | High Energy Stereoscopic System |
HETG | High Energy Transmission Grating (on Chandra) |
HEXTE | High Energy X-ray Timing Experiment (on RXTE) |
HPD | Half-Power Diameter |
HRI | High Resolution Imager (on ROSAT) |
HV | High Voltage |
HXD | Hard X-Ray Detector |
ISAS | Institute of Space and Astronautical Science |
INTEGRAL | INTErnational Gamma-Ray Astrophysics Laboratory |
JAXA | Japan Aerospace Exploration Agency |
LETG | Low Energy Transmission Grating (on Chandra) |
LSI | Large Scale Integration |
MIT | Massachusetts Institute of Technology |
MPU | Main Processing Unit |
NRA | NASA Research Announcement |
NASA | National Aeronautics and Space Administration |
NOI | Notice Of Intent |
NSPIRES | NASA Solicitation and Proposal Integrated Review and Evaluation System |
NXB | Non-X-ray Background |
OBF | Optical Blocking Filter |
PDS | Phoswich Detector System (on Bepppo-SAX) |
PH | Pulse Height |
PIN | Positive Intrinsic Negative |
PI | Principal Investigator |
PI | Pulse Invariant |
PIMMS | Portable Interactive Multi-Mission Simulator |
PM | Photo-Multiplier |
PPU | Pixel Processing Unit |
PSF | Point Spread Function |
PSPC | Position-Sensitive Proportional Counter (on ROSAT) |
P-Sum | Parallel-Sum |
QDE | Quantum Detection Efficiency |
RA | Right Ascension |
RAM | Random Access Memory |
RDD | Residual Dark-current Distribution |
RGS | Reflection Grating Spectrometer (on XMM-Newton) |
RFA | Research Focus Area |
RMF | Redistribution Matrix File |
ROSAT | RÖntgen SATellite |
RPS | Remote Proposal Submission |
RXTE | Rossi X-ray Timing Explorer |
SAA | South Atlantic Anomaly |
Acronym | Definition |
SAX | Satellite per Astronomia X |
S/C | Spacecraft |
SGR | Soft Gamma-ray Repeater |
SLAC | Stanford Linear Accelerator Center |
SMC | Small Magellanic Cloud |
SN | SuperNova |
SWG | Science Working Group |
TBD | To Be Determined |
TCE | TEC Control Electronics |
TCU | Thermal Control Unit |
TEC | Thermo-Electric Cooler |
TOO | Target Of Opportunity |
US | United States |
USC | Uchinoura Space Center |
UV | Ultra Violet |
VHS | Very High State |
VSNET | Variable Star NETwork |
WAM | Wide-band All-sky Monitor |
XIS | X-Ray Imaging Spectrometer |
XRB | X-ray Binary |
XRS | X-Ray Spectrometer |
XRT | X-Ray Telescope |
XRT-I | X-Ray Telescope for one of the four XIS detectors |