Subject: 2.5m obslog 20080217 (MJD 54514)
Date: Mon, 18 Feb 2008 06:36:44 -0700 (MST)
From: elenam@apo.nmsu.edu (Elena M)
                       APACHE POINT OBSERVATORY SDSS 2.5M
                                 OBSERVING LOG
                            Sunday February 17, 2008
                                  (MJD 54514)
---=== OBSERVING TEAM ===---
Viktor Malanushenko
Elena Malanushenko
swatters (afternoon)
Jon Brinkman (call)
---=== OBSERVING PLAN ===---
        Science!
---=== OBSERVING SUMMARY ===---
It was clear and the seeing was good 1.2-1.5" at the beginning but
seeing was variable and large up to 3.0" after midnight.
The Moon has illumination ~90% and it was up for all night.
We  observed  two segue bright plates 2939 and 2394.
The sos results were not useful and gave us not acceptable (s/n)^2
values. We observed those plates 10 times by 15 min exposure.
We think they might be done and ask BY to check them.
Also obtained good signal on plate 2758 (chunk).
There was a watcher warning that ad2 was dead.
Rebooted the astro crate and got persistent watcher error:
VME Nodes: ad2: "dsc W monInternal Monitor task internal problem:
Monitor log not initialized: 2008-02-18 04:54:28Z" (see problems).
---=== OBSERVING LOG ===---
Afternoon:
---------
All systems checked and *were* working.  At the end of the imager bias
there was a watcher warning that ad2 was dead (see problems).
Spectro focus set for ~0.3C
Night:
-----
01:00Z Opened
Clear, Moon is 90%.
Cart 4 is mounted.
Used FK5 to find guider stars.
T ~ -1C, foc 150, seeing is 1.5-1.7"
Previous observations are (s/n)
01:55Z postCalib
02:08, 02:26, 02:44, 03:02  - science 900
03:20 postCalib
03:26, 03:44, 04:02, 04:19, 04:37, 04:55 - science 900
05:14 postCalib
We got ten 15-min exposures. Each exposure has (s/n)^2 1500  - bad
10:06 (bad),  10:34 science 1500
11:02 postCalib
11:08 science 1500 the seeing is better, 1.3"
11:38 sciecne 1200->1500
12:06 science 1500
12:34 postCalib is requested and it is done.
We marked first four exposures as bad as (s/n)^2  collimate, 50101
Reading /data/spectro/54514/sdR-b1-00050101.fit
Reading /data/spectro/54514/sdR-b1-00050102.fit
 COLLIMATE: Min offset = -0.72 pix
 COLLIMATE: Max offset =  1.11 pix
 COLLIMATE: RMS across CCD =  0.41 pix
 COLLIMATE: Mean offset =  0.22 pix
 COLLIMATE: Camera b1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix)
 COLLIMATE: Predict blue camera ring movement of   -7.9 degrees for spectro-1
 COLLIMATE:   (if red is already in focus)
Log file        = Collimate-54514-b1-00050101.log
PostScript file = Collimate-54514-b1-00050101.ps
Reading /data/spectro/54514/sdR-b2-00050101.fit
Reading /data/spectro/54514/sdR-b2-00050102.fit
 COLLIMATE: Min offset = -0.03 pix
 COLLIMATE: Max offset =  0.39 pix
 COLLIMATE: RMS across CCD =  0.09 pix
 COLLIMATE: Mean offset =  0.23 pix
 COLLIMATE: Camera b2 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix)
 COLLIMATE: Predict blue camera ring movement of   -8.2 degrees for spectro-2
 COLLIMATE:   (if red is already in focus)
Log file        = Collimate-54514-b2-00050101.log
PostScript file = Collimate-54514-b2-00050101.ps
Reading /data/spectro/54514/sdR-r1-00050101.fit
Reading /data/spectro/54514/sdR-r1-00050102.fit
 COLLIMATE: Min offset = -1.07 pix
 COLLIMATE: Max offset = -0.03 pix
 COLLIMATE: RMS across CCD =  0.30 pix
 COLLIMATE: Mean offset = -0.59 pix
 COLLIMATE: Camera r1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix)
 COLLIMATE: Predict (red) piston movement of  5356 steps for spectro-1
 COLLIMATE:   Issue SOP command: "sp1; mechPiston 5356"
Log file        = Collimate-54514-r1-00050101.log
PostScript file = Collimate-54514-r1-00050101.ps
Reading /data/spectro/54514/sdR-r2-00050101.fit
Reading /data/spectro/54514/sdR-r2-00050102.fit
 COLLIMATE: Min offset = -1.02 pix
 COLLIMATE: Max offset = -0.09 pix
 COLLIMATE: RMS across CCD =  0.26 pix
 COLLIMATE: Mean offset = -0.40 pix
 COLLIMATE: Camera r2 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix)
 COLLIMATE: Predict (red) piston movement of  3682 steps for spectro-2
 COLLIMATE:   Issue SOP command: "sp2; mechPiston 3682"
Log file        = Collimate-54514-r2-00050101.log
PostScript file = Collimate-54514-r2-00050101.ps
% Program caused arithmetic error: Floating illegal operand
==> Focus set to ~0.3C