4.1.1.0 atmosphere.getTebbSkySpec

NRAO Home > CASA > CASA Toolkit Reference Manual

atmosphere.getTebbSkySpec - Function

4.1.1 Returns equiv. BB Temp on each channel of a band

Description

Gets the Equivalent Blackbody Temperatures in a spectral window spwid for Water Vapor Column wh2o, the current Air Mass, and perfect Sky Coupling to the sky.

Arguments


Outputs
tebbSky	K	the Equivalent Blackbody Temperatures in a band - Quantum with a vector value and unit of K
		allowed:	doubleK
		Default:
Inputs
spwid		Spectral window (0-based). The value must be >= 0.
		allowed:	int
		Default:	0
wh2o	mm	User specified water column length in mm. Default is not to use wh2o.
		allowed:	doublemm
		Default:	-1

Returns
int

Example

sw=at.getWetOpacitySpec()
# returns a tuple of
# 0 - The number of channels, and
# 1 - the Equivalent Blackbody Temperatures in a band
sw[1][’value’]
# [34.687910103670511,
#  35.496193465331679,
#  36.460355664151791,
#  37.419146813713745,
#  37.9452005127634,
#  38.722631196093729,
#  39.593561594172662,
#  40.528694048924017]

sw[0]
# 8

Another example:
for s in range(at.getNumSpectralWindows()):
        print "band", s
        tebbspec = at.getTebbSkySpec(spwid=s)
        for i in range(at.getNumChan(s)):
                print " - TebbSky %f [%s] " % (tebbspec[1][’value’][i],tebbspec[1][’unit’])

__________________________________________________________________

[next] [prev] [prev-tail] [front] [up]

More information about CASA may be found at the CASA web page

This code is available under the terms of the GNU General Public Lincense