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

[Z.-Q. Shen]

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