[evlatests] AG745 target position

[Walter Brisken]

For the period when there was trouble IDCAF wanted to see 53352 bytes per 
integration from vispipe but only got 53314.  Te missing amount is exactly 
1/(4*351) of the total expected data -- is it possible one IF of one 
baseline was not making it to (or through) vispipe?

-Walter

On Mon, 16 Jul 2007, Ken Sowinski wrote:

> On Fri, 13 Jul 2007, Scheduling Officer wrote:
>
>> During two observations in June, I fast-switched to an offset target
>> position of
>>   RA(J2000) = 12 40 35.8100   Dec(J2000) = -00 29 16.400
>>
>> An AIPS scan listing of a Modcomp-based observation on June 18 says
>> the target position is
>>   RA(J2000) = 12 40 35.8101   Dec(J2000) = -00 29 16.401
>>
>> An AIPS scan listing of a Modcomp-free observation on June 30 says
>> the target position is
>>   RA(J2000) = 12 40 35.8100   Dec(J2000) = -00 29 16.400
>>
>> Why the ending 1's on the Modcomp-based observation?  - Joan
>
> The old system represented the difference between the primary
> and secondary positions as a float and adjusted the RA and DEC
> for each pointing rather than remembering the two.  Depending
> on the magnitude of the difference between the two positions
> a float did not always have enough precision.  The new system
> is more correct.
>
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