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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 alfosc.remote-slitoff [slit=<slitno>|xref=<x> yref=<y>] xstar=<x> ystar=<y> [xbin=<xbinning> ybin=<ybinning> xbeg=<x window begin> ybeg=<y window begin>] This script is meant to be used remotely when the network is too slow for graphical applications. Calculates the telescope offset required to bring a target onto a given slit and performs the required telescope offset. The slit number <slitno> refers to the position of the requested slit in the ALFOSC slit wheel. Alternatively, an (<x>,<y>) pixel position can be given as reference. The script does NOT use any kind of image display. The star to be positioned on the slit is identified by it's x and y coordinate, using the xstar and ystar parameters. The xbin, ybin and xbeg, ybeg parameters are used for indicating the binning in x and y and the window start pixel in x and y. If not given, these parameters will all default to "1" (i.e. full frame, no binning). TEL

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