make_test_observation_table¶
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gammapy.datasets.make_test_observation_table(observatory_name='hess', n_obs=10, az_range=<Angle [ 0., 360.] deg>, alt_range=<Angle [45., 90.] deg>, date_range=(<Time object: scale='utc' format='iso' value=2010-01-01 00:00:00.000>, <Time object: scale='utc' format='iso' value=2015-01-01 00:00:00.000>), use_abs_time=False, n_tels_range=(3, 4), random_state='random-seed')[source]¶ Make a test observation table.
Create an observation table following a specific pattern.
For the moment, only random observation tables are created.
The observation table is created according to a specific observatory, and randomizing the observation pointingpositions in a specified az-alt range.
If a date_range is specified, the starting time of the observations will be restricted to the specified interval. These parameters are interpreted as date, the precise hour of the day is ignored, unless the end date is closer than 1 day to the starting date, in which case, the precise time of the day is also considered.
In addition, a range can be specified for the number of telescopes.
Parameters: observatory_name : str, optional
Name of the observatory; a list of choices is given in
observatory_locations.n_obs : int, optional
Number of observations for the obs table.
az_range :
Angle, optionalAzimuth angle range (start, end) for random generation of observation pointing positions.
alt_range :
Angle, optionalAltitude angle range (start, end) for random generation of observation pointing positions.
date_range :
Time, optionalDate range (start, end) for random generation of observation start time.
use_abs_time : bool, optional
Use absolute UTC times instead of [MET] seconds after the reference.
n_tels_range : int, optional
Range (start, end) of number of telescopes participating in the observations.
random_state : {int, ‘random-seed’, ‘global-rng’,
RandomState}, optionalDefines random number generator initialisation. Passed to
get_random_state.Returns: obs_table :
ObservationTableObservation table.