pycrtools.tasks.directionfitplanewave

Axes3D(fig[, rect])	3D axes object.
DirectionFitPlaneWave([ws, parfile])	Fit a plane wave through arrival times and positions.

Module author: Arthur Corstanje <a.corstanje@astro.ru.nl>

class pycrtools.tasks.directionfitplanewave.DirectionFitPlaneWave(ws=None, parfile=None, **kwargs)

Fit a plane wave through arrival times and positions.

Taken from module srcfind. Parameters taken from DirectionFitTriangles.

Outlier removal and iteration to be implemented.

Input parameters

NAnt

Number of antennas and time lags. If set explicitly, take only the first NAnt antennas from Task.positions and Task.timelags.

doplot [default value: False ]

Plot results.

good_antennas

List with indices of antennas to be used for the plane fit. This should already exclude stations that were flagged or do not show a reliable pulse

goodcount

Number of good antennas.

ignoreNonHorizontalArray [default value: False ]

Set to True when you know the array is non-horizontal (z > 0.5) but want to use the horizaontal approximation anyway

meandirection_azel

Mean direction as Azimuth (N->E), Elevation tuple.

meandirection_azel_deg

Mean direction as Azimuth (N->E), Elevation tuple in degrees.

meandirection_spherical

Mean direction in spherical coordinates.

positions

hArray with Cartesian coordinates of the antenna positions

refant [default value: 0 ]

Reference antenna for which geometric delay is zero.

reference_antenna

Index of antenna with respect to whom the timelags are given. If not given the first antenna is used as reference.

residual_delays

Residual delays needed to calibrate the array after correction for known cable delays. Will be subtracted from the measured lags (correced for cable delays) or added to the expected. The array will be updated during iteration

rmsfactor [default value: 2.0 ]

How many sigma (times RMS) above the average can a delay deviate from the expected timelag (from latest fit iteration) before it is considered bad and removed as outlier.

timelags

hArray with the measured time lags for each event and each antenna

total_delays

Total instrumental (residual+cable) delays needed to calibrate the array. Will be subtracted from the measured lags or added to the expected. The array will be updated during iteration

verbose [default value: True ]

Print progress information.

Output parameters

fit_failed

Indication if fit failed

meandirection

Cartesian coordinates of mean direction from all good triangles