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Appendix A
Glossary

Name Definition
ACS Attitude Control System
AIC Active Image Counter
BPM Bad pixel map
CalFUSE The Science data pipeline
Channel One of 4 (LiF1, SiC1, LiF2, SiC2) telescope - spectrograph combinations.
FARF Flight Alignment Reference Frame
FEC Fast Event Counter
FES Fine Error Sensor (A or B)
FPA Focal Plane Assembly
FPD Fine pointing data
HDU Header Data Unit
HIRS High Resolution Aperture
HIST Histogram mode for data collection
IDF Intermediate Data File
IDS Instrument Data System, the processor that controlled the FUSE instrument.
LiF1A The A segment of the detector on the LiF channel of Side 1.
LiF1B The B segment of the detector on the LiF channel of Side 1.
LiF2A The A segment of the detector on the LiF channel of Side 2.
LiF2B The B segment of the detector on the LiF channel of Side 2.
LWRS Low Resolution Aperture
MCP Micro Channel Plate
MDRS Medium Resolution Aperture
MPS Mission Planning Schedule
PHA Pulse Height Amplitude
PSF Point Spread Function
RFPT Reference point on the FPA
SAA South Atlantic Anomaly
SDAF Science Data Assesment Forms
Segment One of 2 (A and B) for each side. Four in all, 1A, 2A, 1B, 2B.
SIA Spectral Image Allocation table
Side A set of LiF and SiC channels that use the same set of detector.

Name Definition
SiC1A The A segment of the detector on the SiC channel of Side 1.
SiC1B The B segment of the detector on the SiC channel of Side 1.
SiC2A The A segment of the detector on the SiC channel of Side 2.
SiC2B The B segment of the detector on the SiC channel of Side 2.
TTAG Time tagged mode for data collection



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