Three-Letter Acronyms (TLA)

Each type of imaging program that a ROTSE-III telescope might execute is identified through a three-letter acronym (often called a TLA). These identify from the file name the reason a particular image was taken. GRB responses have TLAs that identify the satellite that originated the alert, as well as the type of alert that was disseminated. Sky patrol, burst follow-up, as well as various housekeeping observations all have their own TLAs. The full list of standardized ROTSE-III TLAs is given in Table A.1. As described in Section 4.4.1, the user must define his or her own TLAs through the astrod daemon for scheduled targeted observations.

Table A.1: ROTSE-III standard three-letter acronyms to indicate the reason for why a particular image was recorded. Additional TLAs are defined by the user for targeted observation sequences.

TLA	Explanation
drk	Dark Image
foc	Focus Image
hom	Home Check
twi	For making a Twilight Flat
tpt	For making a Pointing Model
pht	Photometry Verification after Burst Response
tla	Test alert
gha	HETE-2 alert
ghu	HETE-2 Update alert
ghf	Final HETE-2 alert
ghg	Alert from HETE-2 Ground Analysis
gbb	Alert from BeppoSAX WFC
gbn	Alert from BeppoSAX NFI
sky	Sky Patrol
fup	Burst Follow-Up