Observers: G. De Rosa, S. J. Schmidt, D. Berg
Telescope Operator: G. Bechetti
Support Astronomer: M. Edwards

Instrument: LBC - LUCI

Summary: 

We spent the first seven hours observing M31 for OSU_Lensmass. Seeing
varied from 0.9" to 1.6", humidity stayed below 10%, and the weather
varied from clear to thin cirrus. At 8:40, we attempted UM_SBSS, but
were unable to get data. The focus script was written incorrectly, and
possibly triggered the subsequent pointing error. We then obtained data
for OSU_Monitor (2407a and M81) but seeing was higher than requested by
the PI. Given the seeing and the airmass distribution of the observable
targets (airmass ~1.4) we decided to switch to LUCI for poor seeing
targets around UT 10. At UT 11:10 we re-commenced science observations
with OSU_BALQSO (due to variable seeing). Since the seeing stable ~1" at
1.1 airmass, we tried to observe the UVa_MIRCluster imaging program but
the seeing increased dramatically. We have accounted the time for all
the completed programs that do not respect PI constraints, but we will
try to take the data again if possible. We ended the nights with J and
Ks flats.

NOTE: We forgot to change the OBJECT keyword, for the skyflats
      OBJECT=GLM-G360_167 (frames from 0080 to 0123)

Weather: 

Before sunset, thick cirrus overhead prevented us from opening in time
for flats. At sunset (UT 00:30), it was clear overhead with thick cirrus
on the horizon. We chose LBC because one of our top priority target
(M31) was overhead and the cirrus would likely not interfere. Humidity
at 10%. There might be the chance of water vapor coming in, but it is
difficult to predict from satellite images. UT 02:02 cirrus at the
horizon, clear ahead. Weather conditions were stable for the rest of the
night: thin cirrus, low humidity, calm wind.

UT 00:20 Dome open

OSU_M31LensA12

UT 00:57 -- Focus OB
   Focusing during twilight. dofpia run a couple of times.
   A little elongation in the blue data
UT 1:32: first set of exposures for M31 (during twilight, before ideal
   condition as requested by the PI)
   seeing blue ~ 0.9"-1" -- seeing red ~0.9"-1." -- blue psf looks
          slightly elongated
   seeing blue ~ 1.1" -- seeing red ~0.9" -- blue psf looks better
   seeing blue ~ 1.2" -- seeing red ~0.9" -- blue psf looks elongated
UT 2:04 seeing blue ~ 1.5" -- seeing red ~0.9" -- blue psf looks elongated
UT 2:08 trying dofpia on M31 field (as requested by the PI) - software
   found 7-10 stars and ran without problems - not slewing to focus
   field in future
UT 2:15: second set of exposures
UT 2:19 seeing blue ~ 1.1" -- seeing red ~1."-- blue psf looks slightly
   elongated
UT 2:25 seeing blue ~  1." -- seeing red ~0.9" -- blue psf looks better
UT 2:30 seeing blue ~  1." -- seeing red ~0.8" -- blue psf looks better
UT 2:30 seeing blue ~  1." -- seeing red ~0.9"
UT 2:44 seeing blue ~ 0.9"-1." -- seeing red ~0.8" -- blue PSF slightly
   elongated
UT 2:48 seeing blue ~  1.3" -- seeing red ~1." -- blue losing focus

UT 2:51 dofpia on M31 field - difficulty getting it to work (error
   message: "attempt to subscript SKY with NEWMAX is out of
   range"). Worked running without the x2 option. The error may have
   been because of relatively high background levels due to the moon.

UT 3:06 started third set of exposures
UT 3:10 seeing in blue ~ 1.0, seeing in red ~ 1.0 -- fairly round psf
UT 3:15 seeing in blue ~ 1.2, seeing in red ~ 1.0 -- fairly round psf
UT 3:20 seeing in blue ~ 2.0, seeing in red ~ 1.5 -- round psf, but
   seeing blew up
UT 3:23 seeing in blue ~ 1.5, seeing in red ~ 1.2 -- thin cirrus sees to
   be moving in according to skycam image
UT 3:29 seeing in blue ~1.6, seeing in red ~ 1.2
UT 3:32 seeing in blue ~1.8, seeing in red ~ 1.4
UT 3:38 seeing in blue ~ 1.6, seeing in red ~ 1.5 -- round psf
UT 3:42 seeing in blue ~ 1.6, seeing in red ~ 1.6 -- round psf
UT 3:43 dofpia on M31 field (thin cirrus, milky way visible, weather
   situation looks promising)
UT 3:47 started fourth set of exposures
UT 3:52 seeing in blue ~ 1.35, seeing in red ~ 1.35 -- round psf
UT 3:55 seeing in blue ~ 1.35, seeing in red ~ 1.3 -- round psf
UT 4:00 seeing in blue ~ 1.35, seeing in red ~ 1.3 -- round psf
UT 4:05 seeing in blue ~ 1.40, seeing in red ~ 1.4 -- round psf
UT 4:12 seeing in blue ~ 1.40, seeing in red ~ 1.35 -- round psf
UT 4:18 seeing in blue ~ 1.50, seeing in red ~ 1.35 -- round psf

UT 4:23 dofpia on M31 field
UT 4:29 started fifth set of exposures (thin layer of cirrus, humidity 4%)
UT 4:35 seeing in blue ~ 1.5, seeing in red ~ 1.5
UT 4:45 seeing in blue ~ 1.55, seeing in red ~ 1.35 -- round psf
UT 4:55 seeing in blue ~ 1.30, seeing in red ~ 1.25 -- round psf

UT 5:06 dofpia on M31 Field
UT 5:12 started sixth set of exposures (humidity 5%, thin cirrus)
UT 5:15 seeing in blue ~ 1.45, seeing in red ~ 1.30 -- round psf
UT 5:25 seeing in blue ~ 1.55, seeing in red ~ 1.25
UT 5:35 seeing in blue ~ 1.35, seeing in red ~ 1.25 -- round psf
UT 5:45 seeing in blue ~ 1.35, seeing in red ~ 1.20

UT 5:50 started a short set of exposures without running dofpia (as per readme)
UT 5:55 seeing in blue ~ 1.25, seeing in red ~ 0.95 -- round psf
UT 06:02 hardware failure: Red channel filter error when running dofpia
   continued operations and michelle checked for filter change and
   vignetting - everything was ok. dofpia ran successfully on the second
   try.
UT 06:18 started the seventh set of exposures
UT 6:20 seeing in blue ~ 1.25, seeing in red ~ 1.20 -- round psf
UT 6:30 seeing in blue ~ 1.25, seeing in red ~ 1.20 -- round psf
UT 6:40 seeing in blue ~ 1.05, seeing in red ~ 1.0 -- round psf
UT 6:50 seeing in blue ~ 0.90, seeing in red ~ 1.1 --

UT 6:51 started a short set of exposures (thin cirrus)
UT 7:00 seeing in blue ~ 0.9, seeing in red ~ 1.3 -- red is slightly elongated

UT 7:05 dopfia (no errors)

UT 7:11 started eighth set of exposures
UT 7:15 seeing in blue ~ 0.95, seeing in red ~ 1.35
UT 7:20 seeing in blue ~ 0.90, seeing in red ~ 1.40
UT 7:23 Focusing problems blue-72212, red-71954 images aborted
UT 7:24 Trying LBCRangebal to fix difference in Red and Blue seeing
   (co-pointing was far off). Also, large temperature difference (~3
   degrees) between mirror and outside. Attempted to focus using focus
   field; there were still problems focusing the red mirror. Cleared the
   optics, finally focused.

UT 7:57 Running eighth set of exposures
UT 8:00 seeing in blue ~ 1.45, seeing in red ~ 1.20 -- blue is elongated
UT 8:10 seeing in blue ~ 1.30, seeing in red ~ 1.30 -- blue elongation
   is better
UT 8:20 seeing in blue ~ 1.40, seeing in red ~ 1.25
UT 8:30 seeing in blue ~ 1.60, seeing in red ~ 1.15 -- elongated in the blue

UT 8:40: UM_SBSS - attempted to slew to focus OB specified in the
   lbc_2001qj142/BR_rVfastextra.ob script and field coordinates did not
   match finding charts. We manually changed the coordinates in the file
   to slew to the star on the finding chart.
UT 8:45 dofpia
UT 8:53 tried to run the remainder of the focus ob to point, but
   discovered that script was not a typical focus star script - we had
   to modify a script from another program in order to point.
UT 8:57 ran the newly modified focus script
UT 9:05 error: left and right preset failed due to being off target for
   too long, pointing lost

   We decided to move to a different program because of the script
   failure once pointing was established.

UT 9:06 redoing lbcrangebal (co-pointing) on a bright star
UT 9:12 left and right preset failed - call Dave - try to do a pointing reset
UT 9:28 dofpia
UT 9:32: OSU_Monitor_2403a (in the meantime Michelle is looking at
   Chick's scripts)
UT 9:34 -- focusing
UT 9:40 -- start science exposure
   seeing in blue ~ 1.45, seeing in red ~1.20 (airmass 1.2)

NOTE: The queuing page is not uploading properly!  CONDITIONS DO NOT
      MATCH CONSTRAINTS

UT 9:52: OSU_Monitor M81
   seeing in blue ~ 1.45, seeing in red ~1.20
UT 10:07 seeing in blue ~ 1.5, seeing in red ~ 1.3
   CONDITIONS DO NOT MATCH CONSTRAINTS
UT 10:09 - DIMM seeing 1.5
   No remaining LBC targets that meet seeing requirements (all the
   visible targets are at relatively high airmass: ~1.4), so changing
   instrument to LUCI
UT 10:37 - DIMM seeing 1.6, go for safe long slit program (Imaging of
   crowded field require good seeing)

UT 10:42 - Collimating

UT 10:45 OSU_BALQSO_He/PG0946
   Optical seeing is varying ~1.1-1.3" at airmass ~1.1
   Acquisition was slightly problematic
UT 11:10 start exposure lower S/N than expected. (cirrus? seeing? alignment?)
UT 11:30 start a second series of exposures in order to increase S/N
UT 11:48 telluric standard star (too many counts, close to non linear regime).
   Script changed to 2 NDIT of 6 sec.

UT 12:05 Optical seeing stable ~1. Thin cirrus. Move to imaging
   programs.  moving to zenith and change rotator angle in order to
   switch from the N1.8 camera to the N3.5 one.

UT 12:10 -- UVa_MIRCluster
   GLM167 -- guiding stare seeing ~1.1"-1.2"
   bad collimation due to problems with the wavefront sensor. Abort
   exposure (last exposure #51).

UT 12:23 Problem due to guide star. Switched to alternative guide star
   in the script and run the it again
   Jband: measured seeing ~1.5-1.6" in J, seeing starts blowing up.
   Kband: seeing ~1.7" in K, while seeing from guiding is ~1.1"
   CONDITIONS DO NOT MATCH CONSTRAINTS

Skyflats:

NOTE: we forgot to change the OBJECT keyword, for the skyflats
      OBJECT=GLM-G360_167 (frames from 0080 to 0123)

There are many flats, but the best counts are on:
  J band: 95-107
  Ks band: 116-126