CalFrom¶

class CalFrom(gaintable: str | None = None, gainfield: str = '', interp: str = 'linear,linear', spwmap: list | tuple | None = None, caltype: str = 'unknown', calwt: bool = True)[source]

Bases: object

CalFrom represents a calibration table and the CASA arguments that should be used when applying that calibration table.

CALTYPES: an enumeration of calibration table types identified by this code.

CALTYPE_TO_VISCAL: mapping of calibration type to caltable identifier as store in the table header.

VISCAL: mapping of calibration table header information to a description of that table type.

Attributes Summary

`CALTYPES`
`CALTYPE_TO_VISCAL`
`VISCAL`
`caltype`	Return the type of calibration table.
`calwt`	Return the value to use for calwt when applying these calibrations.
`gainfield`	Return which field(s) in the calibration table to apply.
`gaintable`	Return the filename of the calibration table.
`interp`	Value to use for interp when applying these calibrations.
`spwmap`	Value to use for spwmap when applying these calibrations.

Methods Summary

get_caltype_for_viscal(viscal)

Return the calibration table type for given VISCAL identifier.

Attributes Documentation

CALTYPES = {'amp': 13, 'antpos': 6, 'bandpass': 2, 'finalcal': 11, 'gaincal': 1, 'gc': 7, 'kcross': 17, 'opac': 8, 'otf': 18, 'otfraster': 15, 'polarization': 5, 'ps': 14, 'rq': 9, 'swpow': 10, 'tecim': 16, 'tsys': 3, 'unknown': 0, 'uvcont': 12, 'wvr': 4}

CALTYPE_TO_VISCAL = {'antpos': ('KANTPOS JONES',), 'bandpass': ('B JONES', 'BPOLY'), 'gaincal': ('G JONES', 'GSPLINE', 'T JONES'), 'otf': ('SDSKY_OTF',), 'otfraster': ('SDSKY_RASTER',), 'ps': ('SDSKY_PS',), 'tsys': ('B TSYS',), 'uvcont': ('A MUELLER',)}

VISCAL = {'A MUELLER': 'A Mueller (baseline-based)', 'B JONES': 'B Jones (bandpass)', 'B TSYS': 'B TSYS (freq-dep Tsys)', 'BPOLY': 'B Jones Poly (bandpass)', 'D JONES': 'D Jones (instrumental polarization)', 'DF JONES': 'Df Jones (frequency-dependent instrumental polarization)', 'DFGEN JONES': 'Dfgen Jones (frequency-dependent instrumental polarization)', 'DGEN JONES': 'Dgen Jones (instrumental polarization)', 'G JONES': 'G Jones (electronic Gain)', 'GLINXPH JONES': 'GlinXph Jones (X-Y phase)', 'GSPLINE': 'G Jones SPLINE (elec. gain)', 'J JONES': 'J Jones (generic polarized gain)', 'KANTPOS JONES': 'KAntPos Jones (antenna position errors)', 'M MUELLER': 'M Mueller (baseline-based)', 'MF MUELLER': 'Mf Mueller (closure bandpass)', 'P JONES': 'P Jones (parallactic angle phase)', 'T JONES': 'T Jones (polarization-independent troposphere)', 'TF JONES': 'Tf Jones (frequency-dependent atmospheric complex gain)', 'TFOPAC': 'TfOpac (frequency-dependent opacity)', 'TOPAC': 'TOpac (Opacity corrections in amplitude)', 'X JONES': 'X Jones (antenna-based)', 'X MUELLER': 'X Mueller (baseline-based)', 'XF JONES': 'Xf Jones (antenna-based)'}

caltype: Return the type of calibration table.

calwt: Return the value to use for calwt when applying these calibrations.

gainfield: Return which field(s) in the calibration table to apply.

gaintable: Return the filename of the calibration table.

interp: Value to use for interp when applying these calibrations.

spwmap: Value to use for spwmap when applying these calibrations.

Methods Documentation

static get_caltype_for_viscal(viscal: str) → str[source]

Return the calibration table type for given VISCAL identifier.

VISCAL identifiers are the caltable identifier as stored in the table header.

Parameters:: viscal -- VISCAL table identifier to convert to calibration table type.
Returns:: Type of calibration table.