vimos_ima_twilight_flat7

Usage

Overview

vimos_ima_twilight_flat -- VIMOS twilight flat combine recipe.

Combine a list of twilight flat frames into a mean frame. Optionally compare the output frame to a reference twilight flat frame

The program accepts the following files in the SOF:

Tag Description

FLAT_TWILIGHT A list of raw twilight flat images
MASTER_BIAS A master bias frame
MASTER_DARK A master dark frame
REFERENCE_TWILIGHT_FLAT Optional reference twilight flat frame If no reference twilight flat is made available, then no comparison will be done. This means there will be no output ratio image and no stats

Options

--lthr <float>

Low rejection threshold for underexpsed images (float; default: 4000.0). The full name of this option for the EsoRex configuration file is vimos.vimos_ima_twilight_flat.lthr [default = 4000.0].

--hthr <float>

High rejection threshold for overexposed images (float; default: 60000.0). The full name of this option for the EsoRex configuration file is vimos.vimos_ima_twilight_flat.hthr [default = 60000.0].

--combtype <str>

Combination algorithm (str; default: ´median´). The full name of this option for the EsoRex configuration file is vimos.vimos_ima_twilight_flat.combtype [default = median].

--scaletype <str>

Scaling algorithm (str; default: ´multiplicative´). The full name of this option for the EsoRex configuration file is vimos.vimos_ima_twilight_flat.scaletype [default = multiplicative].

--xrej <bool>

True if using extra rejection cycle (bool; default: True). The full name of this option for the EsoRex configuration file is vimos.vimos_ima_twilight_flat.xrej [default = True].

--thresh <float>

Rejection threshold in sigma above background (float; default: 5.0). The full name of this option for the EsoRex configuration file is vimos.vimos_ima_twilight_flat.thresh [default = 5.0].

--ncells <int>

Number of cells for diff image stats (int; default: 8). The full name of this option for the EsoRex configuration file is vimos.vimos_ima_twilight_flat.ncells [default = 8].

--prettynames <bool>

Use pretty output file names? (bool; default: False). The full name of this option for the EsoRex configuration file is vimos.vimos_ima_twilight_flat.prettynames [default = False].

Note that it is possible to create a configuration file containing these options, along with suitable default values. Please refer to the details provided by the 'esorex --help' command.

Version

vimos_ima_twilight_flat 4.1.7