From: VIVEK MARIAPPAN
Subject: RE: [sloan-25mlog 2184] 2.5m obslog 20150321 (SJD 57103)
Date: Sun, 22 Mar 2015 16:42:49 +0000
Hi kaike,=0A=
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We are seeing this for the first time. There is nothing unusual in the logs=
. I tried running sos_redo for these exposures and it doesn't fix the probl=
em. We will look in to in detail. =0A=
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From the S/N plots r1 S/N is  short of the threshold. We need to burn one m=
ore exposure to make it complete.=0A=
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vivek=0A=
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________________________________________=0A=
From: Kaike Pan [kpan@apo.nmsu.edu]=0A=
Sent: Sunday, March 22, 2015 9:22 AM=0A=
To: Kyle Dawson; Stephen Bailey; VIVEK MARIAPPAN=0A=
Cc: obs-report-25m@apo.nmsu.edu=0A=
Subject: Re: [sloan-25mlog 2184] 2.5m obslog 20150321 (SJD 57103)=0A=
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Hi Kyle, Vivek, and Stephen,=0A=
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   Per S/N on SN^2 plots, plate 7410 is done, please check and advise=0A=
should we take more exposures on the plates.=0A=
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  Kyle, should we re-map the RM plate 7339 on cart 16, before re-observe=0A=
it?=0A=
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Cheers,=0A=
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-kaike=0A=
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> On Mar 22, 2015, at 6:33 AM, doravetz@apo.nmsu.edu wrote:=0A=
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>                       APACHE POINT OBSERVATORY SDSS 2.5M=0A=
>=0A=
>                                 OBSERVING LOG=0A=
>                          Saturday March 21, 2015=0A=
>=0A=
>                                  (SJD 57103)=0A=
>=0A=
> ----  Observing Team ----=0A=
>=0A=
> Katie Grabowski=0A=
> Dan Oravetz=0A=
>=0A=
> ---- Observing Summary ----=0A=
>=0A=
> Most of the night was lost to clouds and/or high humidity. We opened at 0=
9:46Z=0A=
> and observed the remainder of the night.=0A=
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> Observed the following:=0A=
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> Cart. 14, 7410 - 3X900s exposures - not complete=0A=
> Cart. 15, 8490 - 3X900s exposures - not complete=0A=
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> Notes=0A=
> =3D=3D=3D=3D=3D=0A=
> (1) Azimuth axis halted during slew at 129 degrees going from 121 to 141 =
degrees=0A=
> during afternoon checkout. More details in Problems section. (Recall that=
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> yesterday we also had an Azimuth abort during afternoon checkout.)=0A=
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> (2) The SOS-reported b1 XSIGMA/WSIGMA values seem to be systematically hi=
gh,=0A=
> despite the r1-b1 MeanOffset pixel values and the hartmann collimate outp=
ut=0A=
> indicating that the sp1 focus should be acceptable.=0A=
>=0A=
> (3) The SOS SN2 output for cart. 14, 7410 (`BOSS' plate) shows `0.0' for =
all=0A=
> cameras across all three exposures. The SOS SN2 plots look normal, though=
, and=0A=
> we used the information therein to judge completeness. The SOS SN2 output=
 for=0A=
> cart. 15, 8490 (`eBOSS' plate) is expectedly non-zero for all cameras.=0A=
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