[daip] estimate the coherence time in AIPS (coher)

[Jim Ulvestad]

Hi Eric,

Leonia Kogan, who wrote COHER, is on vacation, and he's
probably the best person to answer your questions.
He'll be back at the beginning of next week, so please
be patient until then.

Best,

Jim Ulvestad

"Z.-Q. Shen" wrote:
> 
> To Whom it may concern,
> 
> I tried to estimate the coherence time using AIPS task COHER.
> I set the parameters as follows:
> 
> aparm(1)=3 (calibrator scan length)
> aparm(2)=5 ------(I'm quite confused with this cutoff)
> aparm(3)=0.9
> aparm(4)=0 (for a detailed debug)
> aparm(5)=0 (only use one 3 min scan)
> aparm(6)=1 (FRING done earlier)
> aparm(7)=0
> aparm(8)=1 (for 43 GHz).
> 
> But I found the results are only affected by the selection of
> aparm(8) and could be very different when aparm(8) are
> picked up differently.  No matter what value I chose for
> aparm(3), it always gave the same results (if aparm(8) is
> not changed). This seems wrong to me.
> 
> I'd like to have your suggestions.
> 
> Regards,
> Zhiqiang Shen
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