Date: Thu, 20 Dec 2012 23:19:45 -0000 (UTC)
Subject: Re: [sdss3-25mlog 984] Re: 2.5m obslog 20121219 (MJD 56281)
From: dmbiz@apo.nmsu.edu
Hi Dan,
in my understanding the building moved a bit slower than usual,
almost certainly because of -9C temperature when we opened.
No any stops or unusual behavior noticed.
Dmitry
> Hi Kaike,
>
>    Yes, I think all that can be attributed to the 1 PPS problem.  What I
> was asking about was the short line saying "the building had a hard
> time moving".  Do you know any more on that (see questions below in
> original message)?
>
> -Dan
>
> On Dec 20, 2012, at 7:41 AM, Kaike Pan wrote:
>
>> Hi, Dan,
>>
>>   I don't have information on the very first failure. Here are what I
>> saw after I arrived the site:
>>
>> For some reason, tcc dead (before I arrived there),  so we did telstop
>> and telrun from tcc,
>> hub startNubs tcc25m from STUI,  moved the telescope from MCP but could
>> not from tcc.
>> Then we rebooted mcp, and still could not move the telescope from tcc
>> (we noticed that rotator
>> was not there, and could not move the rotator from neither mcp nor d
>> tcc, so did tcc set inst=spectro,
>> this allowed us to move the rotator from mcp, still not from tcc). We
>> tried more then five
>> times: axis init and tcc track, each time we saw a slew progress bar
>> appeared
>> in STUI, and disappeared in less than one sec. Apparently, tcc attempted
>> to start the requested
>> slew, but never be able to start the slew.
>>
>> -kaike
>>
>>
>> On Dec 20, 2012, at 7:12 AM, Dan Long wrote:
>>
>>>  We know about the problems with the 1 PPS, but would like more
>>> information on the enclosure motion issue.  Can you describe it in
>>> more detail?  Was it having difficulty starting to move?  Was it
>>> stopping once it started?  Where was it having trouble?  How many
>>> times did it have trouble?
>>>
>>> Thanks,
>>>
>>> -Dan
>>>
>>> On Dec 20, 2012, at 3:09 AM, marchante@apo.nmsu.edu wrote:
>>>
>>>>
>>>>                     APACHE POINT OBSERVATORY SDSS 2.5M
>>>>
>>>>                               OBSERVING LOG
>>>>                        Wednesday December 19, 2012
>>>>
>>>>                                (MJD 56281)
>>>>
>>>> ----  Observing Team ----
>>>>
>>>> Dmitry Bizyaev
>>>> Moses Marchante
>>>>
>>>> Kaike Pan (afternoon)
>>>>
>>>> MaNGA team:
>>>>
>>>>
>>>> ---- Observing Plan ----
>>>>
>>>> All Boss
>>>> 19 Dec 2012  56281.0  0.50  01:14 12:48  00:07 11:43  BOSS  11.6 hours
>>>>
>>>> ---- Observing Summary ----
>>>>
>>>> Boss:
>>>> Cart:  Plate
>>>> 18    6129   not Done
>>>> on Cart 18  plate 6129  yellow WSIGMA  1.26 on  ARC-00153055
>>>> 02:54:54  encl25m : closed;  High wind, bad seeing
>>>>
>>>> Building had hard time moving on slow speed, only a little better on
>>>> high,
>>>>
>>>>
>>>> TCC unable to control Telescope, still able to use MCP for emergency
>>>> moves,
>>>> called in Joe H. Powered on/off amps. rebooted MCP, still no control
>>>> with TCC.
>>>> Had to call Jon B. to check computer logs.
>>>
>>> _____________________________________________________
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>>
>
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