Subject: 2.5m obslog 20071106 (MJD 54411)
Date: Wed,  7 Nov 2007 06:01:23 -0700 (MST)
From: swatters@apo.nmsu.edu (Shannon Watters)
                       APACHE POINT OBSERVATORY SDSS 2.5M
                                 OBSERVING LOG
                           Tuesday November  6, 2007
                                  (MJD 54411)
---=== OBSERVING TEAM ===---
Dan Oravetz (swing)
Steph Snedden (observer)
Shannon Watters (observer)
---=== OBSERVING PLAN ===---
Spectrophotology!
---=== OBSERVING SUMMARY ===---
With photometric skies for the majority of the night we imaged SNe Strip 82 S
from lambda=128 to lambda=-123 (including ramps).  We finally finished plates
2695 and 2682 and acquired signal on plate 2699.
---=== OBSERVING LOG ===---
Afternoon:
----------
All systems checked and working properly.
As of 22:02Z there are 35G available on /data and 571G available on /files.
Spectro focus set for ~5C.
23:13Z - Began ventilation.  Doors and louvers opened, fans on.
Night:
------
00:09Z  Run 7135, On-telescope imager bias.
01:00Z  Run 7136, SN 82 S.
        Skippy happy at frame 11 (muErr=12"), focus good at frame 16.
        Seeing ~1.1".  Non-photometric from 01:16Z - 02:10Z, 02:35Z - 02:45Z,
        03:35Z - 05:10Z.
        01:16Z  goDrift:        lambda=125.75
        01:25Z  Ramp start:     lambda=128.00, frame 23
        01:33Z  Science start:  lambda=130.00, frame 36
        08:32Z  Science end:    lambda=-125.0, frame 737
        08:40Z  Ramp end:       lambda=-123.0, frame 751
08:42Z  Switching to SEGUE spectroscopy.
08:56Z  Cart 4, plate 2695, seguefaint162.  Prev Signal: 105.9 44.0 133.7 84.7
        NGSOGTF, FK5 used.  T=8.7C, relfoc=-225, seeing~1.4"
        09:08Z  Precals
        09:14Z  Science (900)
        09:32Z  Science (900) - not photometric
        09:51Z  Postcals
        PLATE DONE
10:01Z  Cart 7, Plate 2699, seguefaint162.
        GSOGTF.  T=8.3C, relfoc=-200, seeing  -8970  -9134  -9339;  T=11.3C
sp2>  -460  -1081  -1167;  T= 9.2C
        Average T=10.2C
        Expected temperature for spectroscopy at the end of the night is ~5C
        Spectro collimation set for 5C
                Difference of 5.2C degrees (colder) = -5200 steps
IDL> collimate, 47164
        Camera    Steps/Degrees    Focus    Mean Offset   MechPiston Result
          b1         -13.5 deg      OUT        0.38             .....
          b2         -16.9 deg      OUT        0.47             .....
          r1          5542          OUT       -0.61              342
          r2          5048          OUT       -0.55             -152
I DID NOT ISSUE ANY mechPiston COMMANDS SINCE THE SPECTROGRAPHS ARE ALREDY SET
FOR ~5C.
'mechSend s' After:
sp1> no change; same as above
sp2> no change; same as above
sp1> caget tpm_TM_PMSSAvg tpm_TM_TelairAvg.VALA
tpm_TM_PMSSAvg        = 9.065C
tpm_TM_TelairAvg.VALA = 9.525C
-------------------------------------------------------------------------------
apo_plotbias:
------------
Filename             02%     05%     10%     50%     90%     95%     98%
-------------------  ------  ------  ------  ------  ------  ------  ------
sdR-b1-00047166.fit    -6.0    -3.8    -2.7     2.0     7.2     8.3    10.5
sdR-b2-00047166.fit    -8.1    -6.3    -4.4     1.1     7.2     8.5    10.9
sdR-r1-00047166.fit    -6.9    -5.3    -3.6     1.7     6.7     8.4    10.5
sdR-r2-00047166.fit    -7.6    -5.5    -4.3     0.9     6.2     8.3    10.4