XMM Users' Handbook

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For more information on frequently used technical terms, see also the XMM Glossary.

Acronym Explanation
ADU Analogue to Digital Unit
ACIS AXAF CCD Imaging Spectrograph
ADU Analogue to Digital Unit
AHF Attitude History File
AMA Absolute Measurement Accuracy
AO Announcement of Opportunity (AO-1)
AOCS Attitude and Orbit Control and Measurement Subsystem
AMS Archive Management Subsystem
AXAF Advanced X-ray Astrophysics Facility
CAL Calibration Access Layer
CCD Charge Coupled Device
CCF Current Calibration File
CTE Charge Transfer Efficiency
CVZ Continuous Viewing Zone
DEC Declination, $\delta$(J2000)
DPU Digital Processing Unit
EPIC European Photon Imaging Camera
ERMS EPIC Radiation Monitor Subsystem
ESTEC European Space Research and Technology Centre
EW Equivalent Width
FAQ Frequently Asked Question
FITS Flexible Image Transport System
FM Flight Module
FOV Field Of View
FWHM Full Width at Half Maximum
GO Guest Observer
GT(O) Guaranteed Time (Observer)
GTI Good Time Interval
GUI Graphical User Interface
HEASARC (NASA) High Energy Astrophysics Science Archive Research Center
HED High Energy Detector (of the ERMS)
HEW Half Energy Width
HER RGS high event rate (selectable mode)
HETG ( AXAF) High Energy Transmission Grating
HRC ( AXAF) High Resolution Camera
HTR High Time Resolution (mode of the RGS)
LED Low Energy Detector (of the ERMS)
LETG ( AXAF) Low Energy Transmission Grating
LSF Line-spread Function
METG ( AXAF) Medium Energy Transmission Grating
MOC XMM Mission Operation Centre
MOS Metal Oxide Semi-conductor
OBDH Onboard Data Handler
OCB On-Chip Binning
ODF Observation Data File
ODS Observation Data Subsystem
OGIP (NASA's) Office of the Guest Investigator Program
OM Optical Monitor
OTAC Observatory Time Allocation Committee
PHA Pulse Height Analyser
PHS Proposal Handling Subsystem
PI Principal Investigator
PPS Pipeline Processing Subsystem
PSF Point-Spread Function
PV Performance Verification
QE Quantum Efficiency
RA Right Ascension, $\alpha $(J2000)
RFC RGS Focal Camera
RFS Refreshed Frame Store mode of EPIC MOS
RGA Reflection Grating Assembly (of the RGS)
RGS Reflection Grating Spectrometer
RPE Relative Pointing Error
XRPS Remote Proposal Submission
SAS Science Analysis Subsystem
SDF Slew Data File
SER RGS split event reconstruction (selectable mode)
SES RGS single event selection (selectable mode)
SGS Sequence Generator Subsystem
SMP Science Management Plan
SOC XMM Science Operations Centre
SSC Survey Science Centre
SSD Software Specification Document
TBC To Be Confirmed
TBD To Be Determined
TOC Table of contents
ToO Target of Opportunity
UHB XMM Users' Handbook
URD User Requirements Document
URL Unique Resource Location
W90 90% energy width
WWW World Wide Web
XDA XMM Data Archive
XID X-ray source identification (by the SSC)
XMM X-ray Multi-Mirror Mission

next up previous contents
Next: Introduction Up: XMM Users' Handbook Previous: List of Tables
European Space Agency - XMM Science Operations Centre