Date: 2021 Jan 07 UTC
LBTO Observer: Olga Kuhn 
Observers: Mark Whittle (UVa)
Remote Participants: Kyle Corcoran (UVa)
TO: Josh Williams
Special Assistant: none

All observing is remote in C-19 mode.

Moon phase:
   Waning  moon (39%) rising at 0823UT
   Twilight at 0156UT evening, 1255UT morning


Summary:
   Gray time, started with LUCI in remarkably good seeing (0.5-0.6-arcsec) but with
   bands of cirrus, then MODS in 0.7 to 0.9-arcsec seeing, then finished with
   LBC in ~0.8 to 1-arcsec seeing.  Cirrus bands most of the night with
   long stretches of clear skies.

   Instruments: LUCI1+2, MODS1 R+B, MODS2 B, LBC Blue+Red (Blue is back!)
   Unavailable: MODS2 Red (suspected dewar leak)
   

Calibrations: 
   MODS slit flats and imaging flats, flux cal Feige 34
   LUCI calibration unit flats, and evening sky flats
   LBC biases
   

Executed Programs:
   LUCI:
     UVa_nirjets AFGL437 and S235NE_SW (imaging)
   MODS:
     UVa_WISE J0612
     OSU_XMDs UGC4483
   LBC:
     OSU_monitor, N3487, N4214, N2903, N3627


Time Lost:
   ~10 minutes to LBC co-pointing after reconfiguration to LBC, inefficient
   collimation of LBC during the night (more iterations than usual)


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

Instrument: LUCI

00:22 - opened enclosure
00:33 - sunset, thin cirrus about

00:36 - LUCI imaging sky flats BR-gamma + H_2, Pa-beta + FeII, J+H

01:10 - pointing check and collimation near AFGL437

UVa_nirjets AFGL473

01:23 - slew to target (AFGL437) and allow WFS to collimate in twilight

01:25 - K+K science images, seeing 0.7-arcsec, some image elongation

01:26 - 12-degree twilight

01:43 - start of Br-gamma + H_2 imaging, seeing 0.5-arcsec, 0.42! on LUCI1 at 02:04

01:56 - 18-degree twilight

02:10 - start of J+H imaging, seeing 0.6-arcsec

02:27 - start of Pa-beta + FeII imaging seeing 0.6-arcsec

02:33 - LUCI user fault accidentally clicked -arcsecskip to next-arcsec, restarted

03:01 - start of K+K imaging, seeing 0.55-arcsec and no elongation this time

UVA_nirjets S235NE_SW

03:22 - slew to target and collimate

03:24 - Start of K_K imaging, 0.6-arcsec and round

03:42 - start of Br-gamma + H_2, seeing 0.7-arcsec

04:09 - start of J+H imaging, interrupted by clouds, guide star lost

04:29 - restart of J+H after clouds past, seeing 0.6-arcsec

04:47 - start of Pa-beta + FeII imaging, seeing 0.5-arcsec

05:14 - DONE

---------------

Reconfiguring for MODS

05:27 - Josh checking pointing and collimation after reconfiguration, minor oops forgetting to
        configure MODS for observing mode

UVa_WISE J0612

05:38 - Slew to target acquire in blue and collimate with a blind offset
        Good seeing allowed for confirmatory images, some modification of hte
	procedure to acquire in Red on MODS1 and blue on MODS2 (differential atmospheric refraction)

06:24 - sceince start, seeing ~0.8-arcsec,

06:58 - thick clouds passing through during 2nd image of the 3

07:30 - done, best transparency was for images 1 and 3, image 2 affected by clouds

OSU_XMDs UGC4483

07:32 - slew to target and collimate, using PA=12

07:51 - start of science observing, seeing 0.7 to 0.8-arcsec

09:00 - Done

Flux Calibration - Feige 34

09:01 - slew to Feige 34 and start

09:16 - clouds coming through, lost the guide star

09:31 - re-acquired after clouds passed and repeated, seeing ~0.9-arcsec

09:40 - done

---------------

09:41 - Reconfiguring for LBC

OSU_monitor program:

09:59 - slew to N3489, slow convergence at start

10:24 - started scieence observing , seeing ~1-arcsec

11:08 - slew to N4214, only 2 stars for fpia for collimation, took 6 iterations with
        some residual 5th-order spherical aberration building up, seeing ~1-arcsec

11:33 - slew to N2903, fpia took 5 iterations to converge again with residual 5th-order
        spherical - slow convergence

11:43 - start of science, seeing ~1.1-arcsec (1.0 red, 1.2 blue), some sign of
        image degradation on both sides in later images

12:24 - slew to N3627, faster fpia convergence

12:32 - start of science, seeing 0.8-arcsec

12:55 - 18-degree twilight

13:13 - N3627 script done.

13:22 - closed up

13:25 - 12-degree twilight

Closed-dome calibration

  MODS Calibrations
     Slit flats (1.0, 0.8, and 1.2-arcsec slits, mods1 dual and mods2 blue, and mods1 red)
     Imaging flats for acq images
     Bias images (including 1x2 binning full-frame bias)

  LUCI - calibration unit flats
     Br-gamma + H_2
     J+H
     Pa-beta + FeII
     K+K