Digests the LO1 FITS file. More...

#include <GBTLO1File.h>

Inheritance diagram for GBTLO1File:

Public Member Functions
	GBTLO1File ()
	This constructs a GBTLO1File that has no primary keywords.
virtual	~GBTLO1File ()
virtual Bool	attach (const String &fitsFile)
	attach this object to a new FITS file.
virtual Bool	isAttached () const
	Is this object attached to a FITS file.
virtual const String &	file () const
	The name of the attached FITS file.
const MPosition &	position () const
	The position of the antenna.
const MVFrequency &	restfrq () const
	The requested rest frequency.
const Double	reqdptol () const
	The requested doppler tolerance in Hz.
const MDirection &	dir (const MVEpoch &time) const
	Get values from the LO1TABLE at the specified time (UTC) - or the first row before that time if there is not a row near that time.
const MVFrequency &	lo1freq (const MVEpoch &time, uInt state) const
	lo1freq, this also requires a state.
const Double	vframe (const MVEpoch &time) const
	radial velocity of the reference frame wrt the observer
const Double	rvsys (const MVEpoch &time) const
	radial velociy of the source wrt the observer
const Table &	souvel () const
	the SOUVEL binary table
const GBTStateTable &	state () const
	the STATE table used here
const ROScalarColumn< Double > &	dmjd () const
	The DMJD column.
Bool	isFreqSwitched () const
	Are there non-zero offsets (implies frequency switching)
Vector< Double >	firstLO1 (Double &factor, MFrequency::Types &refframe, MDoppler::Types &doptype, Double &vsource) const
	Return the first LO1 setting found here plus any state offset from STATE table, one value per state.
Private Member Functions
void	init ()
	initialize with default, unattached values
void	setLO1Table (FITSTable &lo1Tab)
	these functions do the appropriate thing, but do not verify that FITSTable is set to the appropriate extension.
void	setLO1State (FITSTable &stateTab)
void	setSouvel (FITSTable &souvelTab)
void	lo1Row (const MVEpoch &time) const
	sets itslo1Row to the appropriate row in the lo1 table where the DMJD value is near or just prior to the requested time.
	GBTLO1File (const GBTLO1File &other)
	undefined and unavailable
GBTLO1File &	operator= (const GBTLO1File &other)
Private Attributes
Bool	itsAttached
String	itsName
MPosition	itsPosition
MVFrequency	itsRestfrq
Double	itsReqdptol
Vector< Double >	itsFreqoff
MDirection	itsCurrentDir
MVEpoch	itsCurrentTime
Int	itslo1Row
MVFrequency	itsLo1freq
ROScalarColumn< Double >	itsDMJDCol
ROScalarColumn< Double >	itsRACol
ROScalarColumn< Double >	itsDECCol
ROScalarColumn< Double >	itsLO1FREQCol
ROScalarColumn< Double >	itsVFRAMECol
ROScalarColumn< Double >	itsRVSYSCol
Double	itsEquinox
MDirection::Types	itsDirType
Table *	itsSouvel
Table *	itsLO1Table
GBTStateTable	itsState

Detailed Description

Digests the LO1 FITS file.

Intended use:

Public interface

Review Status

Date Reviewed:: yyyy/mm/dd

Etymology

Synopsis

Example

Motivation

Thrown Exceptions

Definition at line 89 of file GBTLO1File.h.

Constructor & Destructor Documentation

GBTLO1File::GBTLO1File ( )

This constructs a GBTLO1File that has no primary keywords.

or associated tables

virtual GBTLO1File::~GBTLO1File ( ) [virtual]

GBTLO1File::GBTLO1File ( const GBTLO1File & other ) [private]

undefined and unavailable

Member Function Documentation

virtual Bool GBTLO1File::attach ( const String & fitsFile ) [virtual]

attach this object to a new FITS file.

If there are problems with the file, the return value is False and appropriate warnings are sent to the logger. The resulting object is not attached to any file.

Implements GBTFITSBase.

const MDirection& GBTLO1File::dir ( const MVEpoch & time ) const

Get values from the LO1TABLE at the specified time (UTC) - or the first row before that time if there is not a row near that time.

Telescope pointing direction.

const ROScalarColumn<Double>& GBTLO1File::dmjd ( ) const [inline]

The DMJD column.

Definition at line 142 of file GBTLO1File.h.

References itsDMJDCol.

virtual const String& GBTLO1File::file ( ) const [inline, virtual]

The name of the attached FITS file.

Returns an empty string if it is not attached.

Implements GBTFITSBase.

Definition at line 109 of file GBTLO1File.h.

References itsName.

Vector<Double> GBTLO1File::firstLO1	(	Double &	factor,
		MFrequency::Types &	refframe,
		MDoppler::Types &	doptype,
		Double &	vsource
	)		const

Return the first LO1 setting found here plus any state offset from STATE table, one value per state.

Also set is the factor which, when multiplied by the TOPO centric frequencies gives the reference frame frequencies corresponding to the the VELOCITY at the same time as the returned LO1 setting. The desired reference frame, velocity definition, and source velocity in the reference frame and definition are set.

void GBTLO1File::init ( ) [private]

initialize with default, unattached values

Reimplemented from GBTFITSBase.

virtual Bool GBTLO1File::isAttached ( ) const [inline, virtual]

Is this object attached to a FITS file.

This base class is never attached to a file.

Reimplemented from GBTFITSBase.

Definition at line 105 of file GBTLO1File.h.

References itsAttached.

Bool GBTLO1File::isFreqSwitched ( ) const

Are there non-zero offsets (implies frequency switching)

const MVFrequency& GBTLO1File::lo1freq	(	const MVEpoch &	time,
		uInt	state
	)		const

lo1freq, this also requires a state.

The appropriate offset for that state is from the LO1STATE table and is added to the frequency from the LO1TABLE. If that state isn't found, an offset of 0.0 is used.

void GBTLO1File::lo1Row ( const MVEpoch & time ) const [private]

sets itslo1Row to the appropriate row in the lo1 table where the DMJD value is near or just prior to the requested time.

GBTLO1File& GBTLO1File::operator= ( const GBTLO1File & other ) [private]