Description:
This recipe is
designed to provide observers with a simple assessment of the noise properties of their data. It does
this by calculating the noise for either the first on-sky data file (default) or for the entire time stream.
The results are passed through the same quality assurance (QA) checks as performed by the
quick-look (QL) pipeline running at the telescope.
The processing is controlled by the recipe parameters described below.
Notes:
None.
Available
Parameters :
The following recipe parameters can be set via the -recpars
option:
NOISE_CALC
Type of noise calculation to perform. May be full, which calculates the noise properties of the entire
time stream or quick to use only the first on-sky subscan (30 seconds).
NOISE_CFG
The name of a
config file to use when calculating the noise properties. The default is to use the standard noise
config but the user is advised to supply the same config used in the map-making process.
NOISE_FREQLO
The frequency at which to calculate the low-frequency noise. Default is 0.5 Hz.
NOISE_FREQRANGE
A pair of numbers indicating the frequency range (in Hz) over which the
noise is to be calculated. Default is 2,10.
Display
The focal-plane mosaic for the noise
and NEP are displayed, scaled between 0 and the relevant spec defined by the quality
assurance parameters. A histogram of noise values is also plotted, with the same upper bound.
Copyright © 2014 University ofBritish Columbia and the Science & Technology Facilities Council