Date: Mon, 22 May 2006 10:58:10 GMT
From: jcb@apo.nmsu.edu
Subject: 2.5m obslog 20060521 (MJD 53877)
                       APACHE POINT OBSERVATORY SDSS 2.5M
                                 OBSERVING LOG
                              Sunday May 21, 2006
                                  (MJD 53877)
---=== OBSERVING TEAM ===---
Viktor Malanushenko
John Barentine
Shannon Watters
Mike Harvanek (swing)
---=== OBSERVING PLAN ===---
        Science!
---=== OBSERVING SUMMARY ===---
A somewhat lackluster night with clouds plaguing observations throughout.  We
managed to finish three plates (2512, 2510, and 2204) and collect partial
signal on one other (2139).
---=== OBSERVING LOG ===---
Afternoon:
----------
In anticipation of slightly warmer temperatures tonight, the spectro
collimation was adjusted.  The spectrograph collimation is currently set
for approximately 15 C.  Details are in the Problems section.  Nothing
else to report.
Night:
------
Open at 02:05Z.  Dust was high (>2000) during the second half of the night;
total dust exposure was  mechPiston 2000
sp2> mechPiston 2000
After collimation:
sp1
Coll_motor_A 17569
Coll_motor_B 17588
Coll_motor_C 17554
sp2
Coll_motor_A 4784
Coll_motor_B 1382
Coll_motor_C 2173
The spectrographs are currently (05-21-06) collimated for a temp of
approximately +15 degree C.
Bias Percentiles
----------------
Filename             02%     05%     10%     50%     90%     95%     98%
-------------------  ------  ------  ------  ------  ------  ------  ------
sdR-b1-00039353.fit    -5.6    -4.3    -3.3     2.1     7.2     8.7    10.9
sdR-b1-00039353.fit    -5.6    -4.3    -3.3     2.1     7.2     8.7    10.9
sdR-b2-00039353.fit    -8.0    -6.6    -4.3     1.0     7.3     8.5    10.5
sdR-b2-00039353.fit    -8.0    -6.6    -4.3     1.0     7.3     8.5    10.5
sdR-r1-00039353.fit    -7.1    -5.4    -4.1     1.1     6.9     8.8     9.9
sdR-r1-00039353.fit    -7.1    -5.4    -4.1     1.1     6.9     8.8     9.9
sdR-r2-00039353.fit    -8.1    -6.3    -4.9     1.1     6.6     8.4    10.5
sdR-r2-00039353.fit    -8.1    -6.3    -4.9     1.1     6.6     8.4    10.5