Date: Mon, 5 Mar 2001 08:06:12 -0800
From: Russell E Owen
Subject: Re: 2.5m obslog 20010304 ( MJD 51973 )
>   While setting up the guider stopped running.  A traceback was done
>and the output from that and another are in the problems section.
>It appears that in each of the three cases where guiding stopped
>there was a problem where
>
>	"argument to math function didn't have numeric value"
>
>and also common to all three was a check on some part of the parsed
>values of TCC status.
I have not looked at the logs to see if this *was* the cause,
but...one thing to check is if the xOP code can handle NaN as a
numeric value. The TCC outputs this when it cannot compute a number.
(If adding code to handle this, I strongly suggest making it case-insensitive.)
-- Russell