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ALFOSC Sequencer Command Documentation

Go to the SEQUENCER Reference Manual Main Page.

Instrument : ALFOSC
Observing Mode: ANY IMA SPEC POL
Command Type: ANY DATA DET DISP INST TEL
Usage: BASIC GENERAL STAFF
Description: SHORT LONG

SystemCommandArgumentsDescriptionType
alfosc autosave_off [-d] Turns off autosave. DATA
alfosc autosave_on [-d] Turns on autosave. DATA
alfosc focus-auto <step-size> [<image>] Computes the best focus value from a focus sequence image taken with the command focusexpose. If no image name <image> is given, the last obtained image will be used. The computed focus value is not automatically sent to the TCS. DATA
alfosc gainron [<file>] Computes detector gain and read-out-noise based on a sequence of two bias frames and two flat fields. The filename <file> must be the last in the sequence. If no filename is given, the last obtained image name will be used. Calculated values are being compared to previous values before being uploaded to database. If the deviations from previous results are found to be too large, the script can be terminated without uploading results. DATA

In scripts, the syntax alfosc.<command> should be used.
If a part of a command is written in <angle brackets>, this is an argument that should be replaced with a value.
If a part of a command is written in [square brackets], this is an optional argument or flag.
When available, the optional flag -d will write extended debugging information to the log.
When available, the optional flag -e will show the script on standard output instead of executing the commands.
When available, the optional flag -t will only make a simulated exposure. Useful for testing scripts.

Type definitions:
DATA: All commands related to handling/modifying data (editing fits-headers, post-processing etc.).
DET: Commands related to operations with the detector.
DISP: Commands related to displaying images on the instrument computer.
INST: Commands related to operations with the instrument.
TEL: Commands related to operations with the telescope.

Back to top Last modified: January 26 2023