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Version 1.9 Build 1488

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bimacalfluxtable.nearestflux - Function

	Package	bima
	Module	bimacalibrater
	Tool	bimacalfluxtable

Get the flux nearest in time to the specifed date of the specified calibrator.

Synopsis
nearestflux(calname, date)

Description

This function returns, as a record, information about the specified calibrator closest to the specified date. The field names of the record returned are obsdate (in fiducial days), flux (in Jy), rms (in Jy), and freq (in GHz).

Arguments

calname		The calibrator for which to retrieve information
		Allowed:	String
		Default:	None
date		The date to which to get the nearest-in-time record
		Allowed:	Quantity
		Default:	None

Returns
Record or fail

Example

- bcft := bimacalfluxtable();
- bcft.nearestflux('1733-130',dq.quantity('today'));
[obsdate=52328, flux=4.30000019, rms=0.600000024, freq=86.1999969] 
- bcft.nearestflux('1733-130',dq.quantity('01jan2000'));
[obsdate=51605, flux=2.0999999, rms=0.5, freq=86.1999969]