Subject: Re: [sdss3-25mlog 1872] 2.5m obslog 20140831 (MJD 56901)
From: Dan Long
Date: Mon, 1 Sep 2014 12:06:42 -0600
Ron and Diana ran some test slews in altitude once plugging was done, =
and did not have any problems.  Not sure what was causing difficulty =
initializing following closing.  The MiGs were rebooted while the =
telescope was at zenith.
-Dan
On Sep 1, 2014, at 6:25 AM, hjbrew@apo.nmsu.edu wrote:
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>                       APACHE POINT OBSERVATORY SDSS 2.5M
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>                                 OBSERVING LOG
>                          Sunday August 31, 2014
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>                                  (MJD 56901)
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> ----  Observing Team ----
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> Viktor Malanushenko
> Howard J. Brewington
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> Support:
> John Parejko
> Jon Brinkmann
> Kaike Pan
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> ---- Observing Plan ----
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> Sun 31 AUG 2014    56901.0   0.32    02:39  11:28    18:17  03:07     =
----  =20
> MaNGA until 07:57 ( 5.3 h), then eBOSS ( 3.5 h)=20
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> MaNGA Observing plan for night of Aug 31 =B6
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>    * Plate 7990: Visibility window LST 14:56 - 20:00, UT: 23:20 - 4:23
>    * Plate 7975: Visibility window LST 19:18 - 23:52, UT: 3:41 - 8:14
>    * Plate 7979: Visibility window LST 19:57 - 0:37, UT: 4:20 - 9:00
>    * Plate 8069: Visibility window LST 20:13 - 0:54, UT: 4:36 - 9:16=20=
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> Plan: As this is our last night of this run, we would like to finish =
plate 7975,
> which only needs one more N dither exposure to complete the set =
started
> yesterday (exposures 00183557 and 00183558), and avoid having to =
replug it in
> the next run. Otherwise, follow the general MaNGA observing principle =
described
> above, and follow the visibility window given by Petunia. If there are =
any
> questions, ask Anne-Marie or Renbin.
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>    1) Start taking dithered exposures on plate 7990 till the end of =
its
> observability window (UT 4:23).
>    2) Then switch to plate 7979, start taking dithered exposures. Make =
sure
> that at 6:49 you are ready to observe plate 7975, so stop observing =
plate 7979
> in time to prepare for this switch.
>    3) At UT 6:49 at the earliest, start observing plate 7975. Take one =
N
> exposure, to complete the set.
>    4) Finally, take two 15 minutes exposures (not dithered) on all-sky =
plate
> 8069, before switching to eBOSS at UT 7:57. If only one sky exposure =
of 15
> minutes can be taken, that would be OK too (but we would prefer to =
have two :-).
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> ---- Observing Summary ----
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> Night was clear with good seeing, but we had problems.=20
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> Observed:
> ----------
> Cart 02, 7990, Manga, 1-set with problems; + E,N dithers, no post =
cals; see log
> Cart 03, 7979, Manga, 1-NSE set plus an additional N-dither and post =
cals
> Cart 01, 7975. Manga, 1-SEN set, no post cals=20
> Cart 04, 8069, Manga, 2-C (aka: center) sky exposures, no post cals
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> Cart 11, 7623, BOSS, DONE
> Cart 14, 7871, BOSS, no data; guider problem; see log
> Cart 13, 7843, BOSS, not done because of an aborted exposure; see log.
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> Notes:
> ------
> Cart 02. We had a readout problem (boss-icc) and lost data; see log.
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> Cart 14, We had a guider failure; see log
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> Cart 13, The second science exposure aborted; we lost data; see log
>         Then we had another boss-icc problem.
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> While doing eBOSS, none of the exposures completed posted to the page =
at
> http://sdss4-hub/sos  So, we had to redo every exposure.  See Cart 13; =
none of
> the morning bias exposures completely posted either. =20
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> As we closed this morning, we could init the alt axis to slew the =
scope from
> 5-degrees.  The axis init command did not release the brakes.  We were =
not below
> 5-degrees.  We use the hand paddle to move to 30 degrees after =
releasing the alt
> brake.=20
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> Also at the end of night, we noticed red numbers in the TPM for M2.  I =
will
> reboot it during afternoon checkout if the engCrew can't find time =
today.
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