Date: 2021 Jan 04 UTC
LBTO Observer: Olga Kuhn 
Observers: Mark Whittle (UVa), Rick Pogge (OSU)
Remote Participants: Hayley Williams, Noah Rogers, Atharva Gorantiwar (UM)
TO: Steve Allanson
Special Assistants: Trim, Mrs. Chippy

All observing is remote in C-19 mode.

Moon phase:
   Waning gibbous, 70% illuminated, so bright time after ~0500UT
   Twilight at ~0150UT evening, 1250UT morning


Summary:
   Bright time run started with LUCI1+2 binocular, then MODS, then
   LBC.  Clouds at sunset but cleared off by twilight and seems to
   stay clear most of the night.  Seeing started out bad and variable
   (1.5-2" or worse), improved steadily to sub-arcsec by dawn.
   Closed-dome remaining LUCI and MODS calibrations end of the night
   into morning.

   Instruments: LUCI1+2, MODS1 R+B, MODS2 B, LBC Red
   Unavailable: MODS2 Red (suspected dewar leak), LBC Blue (rotator failed)
   

Calibrations: 
   Twilight sky and Closed-dome spectral calibrations for LUCI ND_j0053ir
   General MODS closed-dome calibrations


Completed Programs: 
   LUCI ND_j0053ir (do-over from previous night)
   MODS:
      ND_merger (j0053 visible)
      OSU_ASASSN HD45762 and ASASSN20qj (full program)
      UVa_FR_AGN J0807+21, J0950+51 (2 of 6 targets)
   LBC:
      OSU_monitor: N2403, N3077, N4258, N5194, M101, M81, M82


Time Lost:
   HBS issue fixed, no recurrence, no time lost to telescope.
   No time lost to instrument issues.
   No time lost to weather (but some time sub-standard bad seeing)


Details (All times UT):
----------------------------------

00:55 Opened enclosure, configured for LUCI

01:03 Pointing and collimation check near first field,  Seeing 1.8+ arcsec

ND_j0053ir

01:53 Slew to telluric HIP6002, seeing ~1.4-arcsec but variable

02:07 Spectra at K, H, and J

02:21 Slew to J0053 to acquire for spectroscopy

02:45 Start of K spectra
02:59 Start of H spectra
03:21 Start of J spectra

-----------

03:28 - Reconfigure for MODS

03:42 - check pointing and collimation

-----------

ND_merger

03:55 - Slew back to J0053 for the MODS time-series spectra, acquire

04:09 - start of observing, minor hiccup in modified scripts, seeing ~1.1 arcsec

04:12 - seeing puffy, up to 2", but generally around 1.0 to 1.2-arcsec

06:22 - end at airmass 1.73, seeing ~1"

Flux star: G191B2B

06:38 - acquire G191B2B, MODS` dual grating, MODS2 blue only  seeing ~0.7-arcsec

OSU_ASASSN

07:08 - HD45762 MODS spctra.  Seeing ~0.8 arcsec

07:29 - ASASSN20qj - acquire.

07:41 - Start science exposures, seeing 0.6"

UVa_FR_AGN

08:16 - move to J0807+21, seeing 0.6" so changed to 1" slit

08:31 - start of spectra

08:57 - move to J0950+51, seeing 0.7" also changed to 1" slit

09:11 - start of spectra

------------
Reconfigure for LBC

09:50 - reconfigure for LBC-R, leaving MODS1 in beam (LBC-B rotator disabled)
------------

OSU_monitor

09:58 - N2403 acquire/focus, seeing <1"

10:13 - start science, seeing ~0.8"

10:24 - N3077 acquire/focus

10:38 - start science, seeing ~0.7"

10:41 - N4258 acquire/focus

10:47 - start science, seeing ~0.7"

11:44 - N5194 acquire/focus

11:45 - start science, seeing ~0.8" but PSF out of round

12:25 - M101 acquire/focus

12:30 - seeing 1.6" on guider but IQ on image better, shows PSF gradient

13:00 - M81, started after morning 18-degree twilight, 1" seeing

13:24 - M82, started before 12-degree twilight, affected by background

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Sky Calibrations

13:38 - LUCI sky flats, BlankField 15+53

14:00 -  Closed dome, start of LUCI closed-dome calibrations for ND_j0053ir

Followed by closed-dome MODS standard calibrations

15:30 - LBC-R 25 biases