[Comm2011] Dome lamp shutting off after 10 minutes during Gain?

John P. McFarland mcfarland at astro.rug.nl
Tue Aug 9 00:23:10 CEST 2011 

Hi Steffen,

The keyword treatment can wait unless the ingest problems can't be fixed 
(highly unlikely that they can't).

The integration times for 3 out of the last 5 gain templates have those 
exact time sequences.  The exceptions are on the 3rd of August as Ewout 
reported and the one for 1st July where the times look good, just much 
longer (1-60 seconds).

Cheers,


-=John


On Mon, 8 Aug 2011, Steffen Mieske wrote:

> Hi John,
>
> Andrea implemented the default lamp keyword, as I had written to you. We can 
> discuss again the issue of the individual lamp keywords with Andrea, at the 
> time we agreed that this was low priority during OCAM3 since it is not 
> lacking information as such. The permanent inclusion of this keywords with 
> values either T/F is something I can also ask Paranal Software to implement 
> after OCAM3, so no need for Andrea to do this now.
>
> The gain template issue is reaaaally strange, I will include it again in 
> tomorrow's calibration.
>
> I first thought that the lamp switches off because there is some integration 
> with EXPTIME=0 sec, some bias inbetween. But this should not the case 
> according to the below content of the gain template that is used for the 
> daily calibrations. Can you confirm that those are the integration times that 
> you see in the normal case (the data from August 3 are not here anymore, so I 
> cannot check)?
>
>
> # calib template OMEGACAM_img_cal_gain
> TPL.ID                   "OMEGACAM_img_cal_gain";
> TPL.NAME                 "Use Dome FF to check gain";
> TPL.MODE                 "FLAT";
> DET1.WIN1.UIT1           "0.2 4.3 4.0 0.3 0.7 3.5 2.7 0.1 1.4 2.1 2.1 1.4 0.1 
> 2.7 3.5 0.7 0.3 4.0 4.3 0.2";
> SEQ.NEXPO                "20";
> INS.FILT.NAME            "z_SDSS";
> INS.LAMP.SET             "Default";
>
> Cheers,
> Steffen
>
>
>
>
>
>
> On 08/08/11 15:14, John P. McFarland wrote:
>> Hi Ewout,
>> 
>> I have asked Steffen to discuss with Andrea the logic of how the lamp 
>> keywords are included.  If the logic is affecting the ingest we need to 
>> either adapt or adjust the logic.
>> 
>> Andrea and Steffen, have you come to any resolution concerning the lamp 
>> keywords?  It seems to me that removal of the keywords is a poor way to 
>> indicate the lamp is off.  I assume that is what the state keyword (e.g., 
>> INS.LAMP1.ST) is meant to indicate.  Please tell us of your ideas regarding 
>> this.  Thanks!
>> 
>> Cheers,
>> 
>> 
>> -=John
>> 
>> 
>> On Mon, 8 Aug 2011, Ewout M. Helmich wrote:
>> 
>>> Hi Bernard,
>>> 
>>> It looks like all the gain templates for OCAM3 taken up to this point
>>> are wrong. After about 10 minutes, in the middle of the gain template,
>>> the lamp appears to shut down. Lamp header items then disappear, which
>>> resulted in errors during ingest here (note to Danny).
>>> 
>>> Also, the first gain template taken during OCAM3 has strange exposure
>>> times (see below). The exposure times for the 2nd and 3rd template are ok.
>>> 
>>> Ewout
>>> 
>>> ---------------------------------------------------------------------
>>> 
>>> # Filename, template.start, template.type, EXPTIME
>>> 
>>> OMEGACAM.2011-08-03T13:22:00.734.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN -0.704
>>> OMEGACAM.2011-08-03T13:30:39.989.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN -0.604
>>> OMEGACAM.2011-08-03T13:19:06.032.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN -0.504
>>> OMEGACAM.2011-08-03T13:27:45.437.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN -0.104
>>> OMEGACAM.2011-08-03T13:24:54.515.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 0.596
>>> OMEGACAM.2011-08-03T13:25:37.206.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 0.904
>>> OMEGACAM.2011-08-03T13:16:51.761.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 1.004
>>> OMEGACAM.2011-08-03T13:28:30.448.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 1.104
>>> OMEGACAM.2011-08-03T13:23:28.225.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 1.296
>>> OMEGACAM.2011-08-03T13:19:50.152.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 1.504
>>> OMEGACAM.2011-08-03T13:26:17.436.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 1.896
>>> OMEGACAM.2011-08-03T13:22:41.584.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 2.204
>>> OMEGACAM.2011-08-03T13:20:30.803.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 2.696
>>> OMEGACAM.2011-08-03T13:24:11.945.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 2.904
>>> OMEGACAM.2011-08-03T13:29:11.268.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 3.196
>>> OMEGACAM.2011-08-03T13:17:32.721.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 3.496
>>> OMEGACAM.2011-08-03T13:21:14.223.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 3.504
>>> OMEGACAM.2011-08-03T13:27:01.517.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 4.304
>>> OMEGACAM.2011-08-03T13:18:20.842.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 4.804
>>> OMEGACAM.2011-08-03T13:29:55.428.fits 2011-08-03 13:12:39
>>> FLAT,DOME,DETGAIN 5.104
>>> 
>>> 
>>> awe> q = (RawFitsData.template.start ==
>>> dateutil.parser.parse('2011-08-05 15:17:32'))
>>> awe> for f in q.order_by('DATE_OBS'): print f.filename,
>>> len(RawDomeFlatFrame.raw_fits_data == f)
>>> ...
>>> OMEGACAM.2011-08-05T15:19:26.683.fits 32
>>> OMEGACAM.2011-08-05T15:20:10.644.fits 32
>>> OMEGACAM.2011-08-05T15:20:55.594.fits 32
>>> OMEGACAM.2011-08-05T15:21:41.954.fits 32
>>> OMEGACAM.2011-08-05T15:22:41.965.fits 32
>>> OMEGACAM.2011-08-05T15:23:23.495.fits 32
>>> OMEGACAM.2011-08-05T15:24:07.366.fits 32
>>> OMEGACAM.2011-08-05T15:24:50.316.fits 32
>>> OMEGACAM.2011-08-05T15:25:34.247.fits 32
>>> OMEGACAM.2011-08-05T15:26:15.407.fits 32
>>> OMEGACAM.2011-08-05T15:27:00.868.fits 32
>>> OMEGACAM.2011-08-05T15:27:42.958.fits 32
>>> OMEGACAM.2011-08-05T15:28:26.899.fits 32
>>> OMEGACAM.2011-08-05T15:29:10.329.fits 32
>>> OMEGACAM.2011-08-05T15:29:52.919.fits 0
>>> OMEGACAM.2011-08-05T15:30:40.200.fits 0
>>> OMEGACAM.2011-08-05T15:31:23.560.fits 0
>>> OMEGACAM.2011-08-05T15:32:03.781.fits 0
>>> OMEGACAM.2011-08-05T15:32:47.751.fits 0
>>> OMEGACAM.2011-08-05T15:33:34.692.fits 0
>>> 
>>> awe> q = (RawFitsData.template.start ==
>>> dateutil.parser.parse('2011-08-05 13:38:18'))
>>> awe> len(q)
>>> 20
>>> awe> for f in q.order_by('DATE_OBS'): print f.filename,
>>> len(RawDomeFlatFrame.raw_fits_data == f)
>>> ...
>>> OMEGACAM.2011-08-05T13:40:12.904.fits 32
>>> OMEGACAM.2011-08-05T13:40:56.774.fits 32
>>> OMEGACAM.2011-08-05T13:41:41.684.fits 32
>>> OMEGACAM.2011-08-05T13:42:25.385.fits 32
>>> OMEGACAM.2011-08-05T13:43:05.425.fits 32
>>> OMEGACAM.2011-08-05T13:43:45.766.fits 32
>>> OMEGACAM.2011-08-05T13:44:28.766.fits 32
>>> OMEGACAM.2011-08-05T13:45:11.576.fits 32
>>> OMEGACAM.2011-08-05T13:45:51.587.fits 32
>>> OMEGACAM.2011-08-05T13:46:36.537.fits 32
>>> OMEGACAM.2011-08-05T13:47:18.658.fits 32
>>> OMEGACAM.2011-08-05T13:48:03.278.fits 32
>>> OMEGACAM.2011-08-05T13:48:44.649.fits 32
>>> OMEGACAM.2011-08-05T13:49:24.999.fits 32
>>> OMEGACAM.2011-08-05T13:50:10.539.fits 0
>>> OMEGACAM.2011-08-05T13:50:56.480.fits 0
>>> OMEGACAM.2011-08-05T13:51:41.590.fits 0
>>> OMEGACAM.2011-08-05T13:52:25.761.fits 0
>>> OMEGACAM.2011-08-05T13:53:12.371.fits 0
>>> OMEGACAM.2011-08-05T13:53:59.232.fits 0
>>> 
>>> _______________________________________________
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>>> Comm2011 at astro-wise.org
>>> http://listman.astro-wise.org/mailman/listinfo/comm2011
>>> 
>>> 
>
>
> -- 
> Dr. Steffen Mieske
> European Southern Observatory
> Alonso de Cordova 3107
> Vitacura, Santiago
> CHILE
> Tel.: +56 2 463 3118
> Fax: +56 2 463 3001
>
>

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