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measures.cometdist - Function

1.4.1 get the distance of the current comet in the current frame


Description

cometdist returns the distance in AU of the current comet in the current frame, as a quantity. It will return -1 AU on failure!

Arguments





Inputs

Returns
record

Example

 
 
print "\t----\t cometdist Ex 1 \t----"  
# Directory with several Solar System ephemerides for setjy.  
cometdir = os.getenv("CASAPATH").split()[0] + "/data/ephemerides/JPL-Horizons/"  
me.framecomet(cometdir + "Ganymede_55438-56292dUTC.tab")  
#  Out[5]: True  
me.doframe(me.epoch("utc", "2011/01/03/17:00:00"))  
me.doframe(me.observatory("ALMA"))  
gandist = me.cometdist()  
print gandist  
# {’value’: 5.1241088343892631, ’unit’: ’AU’}  
 

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