Observers:  Sun Mi Chung, Michael Fausnaugh, Loreto Barcos-Munoz
SA:  Dave T.
TO:  Steve A.

Summary:

Light to moderate cirrus throughout the entire night.  
Seeing started off at ~1.1 arcsec, then jumped to >1.5 arcsec, 
then back down to ~1.3 arcsec.  Started with MODS, then 
switched to LBC for the last few hours of the night.  

Completed programs in MODS: 
	  UM_Novae/EG131_5.0, UM_Novae/1974cyg_0.8, UM_Novae/1974cyg_5.0, 
          Uva_BCD/J2104, Uva_BCD/0045AGN (*this program received 
          double the requested time because seeing jumped up to ~1.7 arcsec 
          and clouds moved in*.  Seeing eventually improved and stabilized 
          ~1.2 arcsec), and OSU_MAP/IC0342.  
          Two flux standards also completed -- BD284211 and gd121. 

Completed programs in LBC: 
	  OSU_Monitor/N672, OSU_Monitor/N628, OSU_Monitor/925 
      

**********************************************************
Afternoon calibrations: 
10:00 Calibrations for LUCI (programs from 1026) and MODS (for 1027)
10:30 Partly cloudy, more on the way.... 
 
MODS: 

12:40	Sunset.  Moderate cloud coverage, especially near horizon 
01:11	Start acquisition on BD284211 standard 
01:20   Start observation on standard star.  Note we are still in twilight.  Seeing ~0.9 arcsec
01:32   Another set of 3 exposures on standard star BD284211.  

01:42   Preset to UM_Novae/EG131_5.0.  Start acquisition. 
01:50	Acquisition image shows collimation problems -- the "rabbit ears".  Continue with acquition.  

** NOTE: The "rabbit ears" effect seen in very bright stars is a known
         PSF artifact of the rigid secondary - also known as the "evil space
         bunnies" artifact.  It is not a consequence of poor collimation.
         It will be visible in all MODS and LUCI images of very bright stars 
         even with perfect collimation, as well as showing fine structure in 
         the "ears" during episodes of exceptionally good seeing. [rwp/osu]

01:52	Start observation on UM_Novae/EG131_5.0

*** 01:58  Twilight ends *****

02:01   Preset to UM_Novae/1974cyg_0.8, start acquisition. 
02:10 	Two nearly equally bright sources.  Cannot identify which is the target -- insufficient finding chart!  Clarified with PI on the phone.
02:19	Start observation.  Seeing ~1.1  
02:41 	Start acquisition on UM_Novae/1974cyg_5.0. 
02:49	Start observation on 1974cyg_5.0.  Seeing is ~1 arcsec

03:11	Starting acquisition on UVa_BCD/J2104.  Clouds on horizon.  Seeing: ~1.0"
03:25	Starting observation on UVa_BCD/J2104

04:15	Starting acquisition on UVa_BCD/0045AGN.  Seeing ~1.3"  Guide star wasn't recognized because it is not a star!  
04:24 	Modify script -- change the position angle from 0 to 180 (i.e. slit is still in the same direction) and choose a new guide star.  
04:27	Start acquisition on the modified script with the new guide star.
04:41	Start observation on UVa_BCD/0045AGN.  Seeing ~1.2"  Light cirrus.
05:00	Seeing is worse, ~1.5 to 1.7.  Cloudy.
05:29	Rerunning UVaBCD/0045AGN, since seeing is higher than desired.  
05:40	Seeing is somewhat improved, seems stable around ~1.2 to 1.4

06:18  Starting acquisition for standard star, gd191
06:28  Starting observation of gd191

06:40  Starting acquisition on OSU_MAP/IC0342
06:54  Start observation on IC0342.  Seeing is ~1.3 
07:09  Seeing is better ~1.1
07:17  Seeing is ~1.3
07:48  Seeing is 1.1 
08:18  Seeing is ~1.4
08:49  Seeing is 1.1

******* 09:13 START SWITCHING TO LBC **************
LBC: 

09:46  Send preset to OSU_monitor_N628_focus field
09:49  Start collimation with dofpia.   Note, more cirrus rolling in.
10:11  co-pointing correction with lbcrangebal 
10:13  Start OSU_monitor_N628 science OB.  Moderate cirrus.  
       FWHM in blue 1.4 arcsec, FWHM in red 0.9 arcsec 
       Blue point sources appear elongated.
10:33  FWHM in red 1.1 arcsec

10:49  Send preset to OSU_monitor_672_focus field 
10:51  Start collimation on focus field  
10:53  Start co-pointing
10:58  Start science OB for OSU_monitor_672.  Moderate cirrus
11:08  Seeing is 0.9 arcsec in blue and red 

11:34  Send present to OSU_monitor_925_focus field
11:35  Start collimation on focus field 
11:40  Start science OB for OSU_monitor_925.  Moderate cirrus. 
11:51  Seeing is 0.7 arcsec in blue and red.  Still moderate cirrus.
12:07  Re-run science OB for OSU_monitor_925, since we have nothing else to observe for the remaining ~10 minutes before twilight. 
Last few exposures saturating in red.  Start testing twilight flat counts.

12:30 -- Twilight flats in blue Uspec, B, V, and red R filter.