The vimos_ima_det_noise recipe

vimos_ima_det_noise

Synopsis

Detector noise for imaging

Description

vimos_ima_det_noise – VIMOS recipe to find readnoise and gain.

Compute the readnoise and gain for the vimos detectors using two bias frames and two flat field frames.

The program accepts the following files in the SOF:

Tag Description BIAS A list of raw bias images FLAT_TWILIGHT A list of raw flat images MASTER_BPM Optional master bad pixel mask or MASTER_CONF Optional master confidence map

If a master bad pixel mask or confidence map is included then thebad pixels will be flagged during the statistical analysis

Constructor

cpl.Recipe("vimos_ima_det_noise")

Create an object for the recipe vimos_ima_det_noise.

import cpl
vimos_ima_det_noise = cpl.Recipe("vimos_ima_det_noise")

Parameters

vimos_ima_det_noise.param.thresh

Rejection threshold in sigma above background (float; default: 5.0) [default=5.0].

The following code snippet shows the default settings for the available parameters.

import cpl
vimos_ima_det_noise = cpl.Recipe("vimos_ima_det_noise")

vimos_ima_det_noise.param.thresh = 5.0

You may also set or overwrite some or all parameters by the recipe parameter param, as shown in the following example:

import cpl
vimos_ima_det_noise = cpl.Recipe("vimos_ima_det_noise")
[...]
res = vimos_ima_det_noise( ..., param = {"thresh":5.0})

See also

cpl.Recipe for more information about the recipe object.

Bug reports

Please report any problems to Jim Lewis. Alternatively, you may send a report to the ESO User Support Department.