ObitUVDesc Struct Reference

ObitUVDesc Class structure. More...

#include <ObitUVDesc.h>

List of all members.

Public Attributes
gint32	ObitId
	Recognition bit pattern to identify the start of an Obit object.
gpointer	ClassInfo
	ClassInfo pointer for class with name, base and function pointers.
gint	ReferenceCount
	Reference count for object (numbers of pointers attaching).
gchar *	name
	Name of object [Optional].
ObitIOAccess	access
	Type of access to file.
glong	nvis
	Number of visibilities total.
glong	lrec
	Length (floats) of a vis record.
glong	nrparm
	Number of random parameters.
glong	firstVis
	current beginning visibility (1-rel) read/write in buffer
glong	numVisBuff
	number of visibilities in buffer
glong	naxis
	Number of axes.
glong	numSubA
	Number of subarrays in the data.
glong	maxAnt
	Maximum antenna in the data.
glong	inaxes [UV_MAXDIM]
	Dimensions of axes.
gchar	ctype [UV_MAXDIM][UVLEN_KEYWORD]
	WCS labels for each dimension of array.
gchar	ptype [UV_MAX_RANP][UVLEN_KEYWORD]
	WCS labels for random axes.
gfloat	cdelt [UV_MAXDIM]
	Axis coordinate increments.
gfloat	crpix [UV_MAXDIM]
	Axis reference pixels (1-rel).
gfloat	crota [UV_MAXDIM]
	Axis rotation angles (deg).
gfloat	altCrpix
	Alternate reference Pixel (frequency or velocity).
gfloat	xshift
	Offset in X (rotated RA) of phase center (deg).
gfloat	yshift
	Offset in Y (rotated Dec) of phase center (deg).
gfloat	DeltaTime
	Data integration time in Days.
gchar	object [UVLEN_VALUE]
	Name of object.
gchar	teles [UVLEN_VALUE]
	Name of telescope making observation.
gchar	instrument [UVLEN_VALUE]
	Name of instrument making observation.
gchar	observer [UVLEN_VALUE]
	Observer.
gchar	obsdat [UVLEN_VALUE]
	Observing date as yyyy-mm-dd.
gchar	date [UVLEN_VALUE]
	File creation date as yyyy-mm-dd.
gchar	origin [UVLEN_VALUE]
	Origin (software) of image.
gchar	bunit [UVLEN_VALUE]
	Units of visibilities.
gfloat	epoch
	Epoch (years) of celestial coordinates, This is sometimes confused with equinox.
gfloat	equinox
	Mean Equinox of celestial coordinates (e.g.
gdouble	JDObs
	Julian date of observations.
gdouble	crval [UV_MAXDIM]
	Axis coordinate values at reference pixel.
gdouble	obsra
	Observed RA (deg).
gdouble	obsdec
	Observed Dec (deg).
gdouble	altRef
	Alternate reference value (frequency or velocity).
gdouble	restFreq
	Rest frequency of line (Hz).
gdouble	freq
	Reference Frequency (Hz) for u,v,w.
gdouble *	freqArr
	Array of Frequencies (Hz) in the order of Freq, IF in data dimension is nfreq*nif.
gfloat *	fscale
	Array of differential frequency scaling factors from one frequency to the next, dimension is nfreq*nif.
gdouble *	freqIF
	Array of Frequencies per IF.
gfloat *	chIncIF
	Array of channel frequency increments per IF.
gint *	sideband
	Array of sidebands, one per IF.
oint *	numAnt
	Number of antennas (actually max ant number) per subarray.
gint	VelReference
	Velocity reference frame: 1-3 (LSR, Helio, Observer).
gint	VelDef
	Velocity definition 0=>optical, 1=radio.
gint	ilocu
	Random parameter offset: U coordinate.
gint	ilocv
	Random parameter offset: V coordinate.
gint	ilocw
	Random parameter offset: W coordinate.
gint	iloct
	Random parameter offset:Time.
gint	ilocb
	Random parameter offset: Baseline.
gint	ilocsu
	Random parameter offset: Source id.
gint	ilocfq
	Random parameter offset:Freq id.
gint	ilocit
	Random parameter offset: Integration time.
gint	ilocid
	Random parameter offset: Correlation id.
gint	ilocws
	0-rel axis order: Weight-scale parameters for compressed data
gint	jlocc
	0-rel axis order: Complex values
gint	jlocs
	0-rel axis order: Stokes' parameters
gint	jlocf
	0-rel axis order: Frequency
gint	jlocr
	0-rel axis order: RA
gint	jlocd
	0-rel axis order: declination
gint	jlocif
	0-rel axis order: IF
gint	incs
	Increment in data: Stokes.
gint	incf
	Increment in data: Frequency.
gint	incif
	Increment in data: IF.
gint	ncorr
	Total number of complex visibilities.
gchar	isort [3]
	Sort order 1st 2 char meaningful.
ObitInfoList *	info
	InfoList for other keywords.

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Detailed Description

ObitUVDesc Class structure.

This class contains descriptions of interferometric visibility data.

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Member Data Documentation

ObitIOAccess ObitUVDesc::access

Type of access to file.

gfloat ObitUVDesc::altCrpix

Alternate reference Pixel (frequency or velocity).

gdouble ObitUVDesc::altRef

Alternate reference value (frequency or velocity).

gchar ObitUVDesc::bunit[UVLEN_VALUE]

Units of visibilities.

gfloat ObitUVDesc::cdelt[UV_MAXDIM]

Axis coordinate increments.

gfloat* ObitUVDesc::chIncIF

Array of channel frequency increments per IF.

gpointer ObitUVDesc::ClassInfo

ClassInfo pointer for class with name, base and function pointers.

gfloat ObitUVDesc::crota[UV_MAXDIM]

Axis rotation angles (deg).

gfloat ObitUVDesc::crpix[UV_MAXDIM]

Axis reference pixels (1-rel).

gdouble ObitUVDesc::crval[UV_MAXDIM]

Axis coordinate values at reference pixel.

gchar ObitUVDesc::ctype[UV_MAXDIM][UVLEN_KEYWORD]

WCS labels for each dimension of array.

gchar ObitUVDesc::date[UVLEN_VALUE]

File creation date as yyyy-mm-dd.

gfloat ObitUVDesc::DeltaTime

Data integration time in Days.

gfloat ObitUVDesc::epoch

Epoch (years) of celestial coordinates, This is sometimes confused with equinox.

gfloat ObitUVDesc::equinox

Mean Equinox of celestial coordinates (e.g. 2000)

glong ObitUVDesc::firstVis

current beginning visibility (1-rel) read/write in buffer

gdouble ObitUVDesc::freq

Reference Frequency (Hz) for u,v,w.

gdouble* ObitUVDesc::freqArr

Array of Frequencies (Hz) in the order of Freq, IF in data dimension is nfreq*nif.

gdouble* ObitUVDesc::freqIF

Array of Frequencies per IF.

gfloat* ObitUVDesc::fscale

Array of differential frequency scaling factors from one frequency to the next, dimension is nfreq*nif.

gint ObitUVDesc::ilocb

Random parameter offset: Baseline.

gint ObitUVDesc::ilocfq

Random parameter offset:Freq id.

gint ObitUVDesc::ilocid

Random parameter offset: Correlation id.

gint ObitUVDesc::ilocit

Random parameter offset: Integration time.

gint ObitUVDesc::ilocsu

Random parameter offset: Source id.

gint ObitUVDesc::iloct

Random parameter offset:Time.

gint ObitUVDesc::ilocu

Random parameter offset: U coordinate.

gint ObitUVDesc::ilocv

Random parameter offset: V coordinate.

gint ObitUVDesc::ilocw

Random parameter offset: W coordinate.

gint ObitUVDesc::ilocws

0-rel axis order: Weight-scale parameters for compressed data

glong ObitUVDesc::inaxes[UV_MAXDIM]

Dimensions of axes.

gint ObitUVDesc::incf

Increment in data: Frequency.

gint ObitUVDesc::incif

Increment in data: IF.

gint ObitUVDesc::incs

Increment in data: Stokes.

ObitInfoList* ObitUVDesc::info

InfoList for other keywords.

gchar ObitUVDesc::instrument[UVLEN_VALUE]

Name of instrument making observation.

gchar ObitUVDesc::isort[3]

Sort order 1st 2 char meaningful.

gdouble ObitUVDesc::JDObs

Julian date of observations.

gint ObitUVDesc::jlocc

0-rel axis order: Complex values

gint ObitUVDesc::jlocd

0-rel axis order: declination

gint ObitUVDesc::jlocf

0-rel axis order: Frequency

gint ObitUVDesc::jlocif

0-rel axis order: IF

gint ObitUVDesc::jlocr

0-rel axis order: RA

gint ObitUVDesc::jlocs

0-rel axis order: Stokes' parameters

glong ObitUVDesc::lrec

Length (floats) of a vis record.

glong ObitUVDesc::maxAnt

Maximum antenna in the data.

gchar* ObitUVDesc::name

Name of object [Optional].

glong ObitUVDesc::naxis

Number of axes.

gint ObitUVDesc::ncorr

Total number of complex visibilities.

glong ObitUVDesc::nrparm

Number of random parameters.

oint* ObitUVDesc::numAnt

Number of antennas (actually max ant number) per subarray.

glong ObitUVDesc::numSubA

Number of subarrays in the data.

glong ObitUVDesc::numVisBuff

number of visibilities in buffer

glong ObitUVDesc::nvis

Number of visibilities total.

gint32 ObitUVDesc::ObitId

Recognition bit pattern to identify the start of an Obit object.

gchar ObitUVDesc::object[UVLEN_VALUE]

Name of object.

gchar ObitUVDesc::obsdat[UVLEN_VALUE]

Observing date as yyyy-mm-dd.

gdouble ObitUVDesc::obsdec

Observed Dec (deg).

gchar ObitUVDesc::observer[UVLEN_VALUE]

Observer.

gdouble ObitUVDesc::obsra

Observed RA (deg).

gchar ObitUVDesc::origin[UVLEN_VALUE]

Origin (software) of image.

gchar ObitUVDesc::ptype[UV_MAX_RANP][UVLEN_KEYWORD]

WCS labels for random axes.

gint ObitUVDesc::ReferenceCount

Reference count for object (numbers of pointers attaching).

gdouble ObitUVDesc::restFreq

Rest frequency of line (Hz).

gint* ObitUVDesc::sideband

Array of sidebands, one per IF.

gchar ObitUVDesc::teles[UVLEN_VALUE]

Name of telescope making observation.

gint ObitUVDesc::VelDef

Velocity definition 0=>optical, 1=radio.

gint ObitUVDesc::VelReference

Velocity reference frame: 1-3 (LSR, Helio, Observer).

gfloat ObitUVDesc::xshift

Offset in X (rotated RA) of phase center (deg).

gfloat ObitUVDesc::yshift

Offset in Y (rotated Dec) of phase center (deg).

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The documentation for this struct was generated from the following file:

• ObitUVDesc.h

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