From: David Schlegel
Subject: Re: 2.5m obslog 20081121 (MJD 54792)
Date: Sat, 22 Nov 2008 09:39:43 -0800
Kaike,
You could put the fixed plPlugMapM files here:
   sos.apo.nmsu.edu:/data/spectro/astrolog/54773
Then run the command "sos_redo", which should be
documented in the observing instructions.
-David
On Nov 22, 2008, at 9:34 AM, kaike pan wrote:
> Hi Mike,
>
>   Yes, we do have the correct MapP and MapM files
> in places now. Thanks to Craig who fixed MapM file
> without re-mapping the plate .
>
> Because the fix was done  after these three exposures
> were taken, we did not find a easy way to have SoS to
> re-reduce the data without modify files (We tried
> to force SoS to re-reduce the data with fixed MapM
> file, it refused to do so. It appears that some log files
> need to be modified). I don't know how the data pipeline
> works, if it will reduce the data without any modifications
> in log files? The night log just a head up on the situation.
>
>  The bottom line is that three exposure taken on
> mjd 54773 are under the same plugging (with
> same holes being plugged to same targets), should
> be added together with exposures taken later on mjd
> for this plate.
>
> -kaike
>
>
> On Nov 22, 2008, at 6:04 AM, Michael Blanton wrote:
>
>> Hi guys,
>>
>>> 03:05Z cart 5, plate 3116 (SEGUE). SOGTF. This plates has been
>>> observed on
>>> mjd 54773 and 54774. However, because of magnitude problem in Map
>>> files,
>>> SoS did not reduce three exposures (exposure #: 56171,56172, 56173)
>>> on mjd 54773. We acquired three 30 min exposure. The plate was done
>>> with signals from mjd 54773 and 54774.
>>
>> When Paul and I discussed this on Monday
>> we didn't think of this case (actually, I didn't
>> even know it could happen).
>>
>> One can fix the appropriate MapM files.  I don't
>> know where they sit on the system but I do know
>> that the correct MapP files *are* there, and are
>> also checked into the platelist product.
>>
>> Thanks,
>> Mike
>
>
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