GaiaScanningLaw#
- class gaiaunlimited.scanninglaw.GaiaScanningLaw(version='dr3_nominal', gaplist='dr3/Astrometry')#
Bases:
object
Initialize a version of Gaia’s scanning law.
- Parameters:
version (str, required) – Version of the FoV pointing data file to use. One of [“dr3_nominal”, “dr2_nominal”, “dr2_cog3”]. Defaults to “dr3_nominal”.
gaplist (str, optional) –
Name of the gap list. Defaults to “dr3/Astrometry”. The gaplist should be “<dr?>/<sample_name>”. Possible values are:
None
: To apply no gaps.”dr2/Astrometry”, “dr2/Photometry”, “dr2/Spectrocopy”
”dr3/Astrometry”, “dr3/Photometry”, “dr3/Spectrocopy”
These gaps lists are provided as auxiliary data products by DPAC.
Attributes Summary
Methods Summary
query
(ra_deg, dec_deg[, count_only])Query the scanning law for a given position.
Attributes Documentation
- version_trange = {'cog3_2020': [1192.13, 3750.56], 'cogi_2020': [1192.13, 3750.56], 'dr2_nominal': [1192.13, 3750.56], 'dr3_nominal': [1192.13, 5230.09]}#
Methods Documentation
- query(ra_deg, dec_deg, count_only=False)#
Query the scanning law for a given position.
Returned times are in Julian days in TCB with time origin 2010-01-01:T00:00 (JD 2455197.5). See this page for details.
- Parameters:
ra_deg (float) – right ascension in degrees
dec_deg (float) – declination in degrees
count_only (bool) – only return the total number of scans.
- Returns
[fov1_times, fov2_times] [n_fov1, n_fov2] if count_only=True