[daip] aips polarization cal

Eric Greisen egreisen at nrao.edu
Fri Aug 5 11:26:30 EDT 2011


bob at physics.ucdavis.edu wrote:
>> Try it with spectral false and send me all of the output
>>
>> Do you have one scan on this source or more than one.  Is there a flux
>> for this source in the source table for I, for Q for U??
>>
> there is a value for I but Q and U = 0
> 
> with spect false the output is
> 
> PCAL 1: Task PCAL   (release of 31DEC11) begins
> PCAL 1: UVGET: Using flag table version   3 to edit data
> PCAL 1: Solved for spectral indices - will use:
> PCAL 1: Num  Name                I        Q        U        V
> PCAL 1:   1  J0319+4130         0.0000   0.0000   0.0000   0.0000
> PCAL 1: Processing IF number  1

The value under I must not be zero.  I do not know why it is 0 if the 
source table has a non-zero I value.

ERic Greisen




More information about the Daip mailing list