Director's Time

Observers: B.Rothberg, O. Kuhn (Tucson)

ISA: B.Rothberg (Tucson)
Telescope Operator: S. Allanson (LBTO)
AO Support: J.Christou
Telescope Support: K.Newton/J.Little (LBTO)
Software Support: C.Baddick
Instrument Support: J. Power (LBTO)
Engineering Support: M.Gusick

Summary

Starting the night with LBC-R/B in beam

Details

UT 01:24 BIAS checkout

UT 01:29 Opening Enclosure

UT 01:33 BIAS checkout

UT 01:50 Slewing to Blank Field (CA Blank 2)

UT 01:52 - Skyflat test Uspec and V saturated

UT 01:53 - Skyflat test Uspec 50k

UT 01:57 - Skyflat test Uspec 22k, V sat

UT 01:59 - Skyflat Script PA=0 (1sec both) - CA Blank2 field

UT 02:04 - Skyflat Script PA=180 (scaled x2) - MA Blank6 field

UT 02:13 - Skyflat Script PA=180 U-Bessell and V - MA Blank6 field

UT 02:19 - Skyflat Script PA=0 U-Bessell and V- MA Blank6 field

UT 02:30 - Skyflat Script PA=0 B-Bessell and I-Bessell CA Blank2 field - first 3 low counts,

UT 02:35 - paused and increased from 20x to 50x the scale - counts looking too low (can use I-Bessell from UT 20150326 twilights - need B-Bessell)

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UT 02:40 - Moving to RU-152 Standard Field for Focus and Co-pointing

UT 02:44 - Focusing DOFPIA - (0.8" DIMM) Red DOFPIA 0.8, Blue DOFPIA 1.27

UT 02:55 - Co-pointing

UT 03:00 - Taking Standard RU-152 Airmass 1.227-1.242 (Uspec,B-Bessell,U-Bessell,V-Bessell, I-Bessell)

UT 03:16 - Moving to NGC 2655 - copointing OB for a DOFPIA 1.33 BLUE, 0.9 Red

UT 03:25 - NGC_2655_GC_OB1 started (Airmass 1.4) DIMM 1.14" (current OB is 60sec for all exposures - this will change after this OB)

UT 04:01 - Running DOFPIA - DIMM 1.04"

UT 04:05 - NGC_2655_GC_OB2

UT 04:08 - Red Channel moved to correct PA=90 and started, Blue Channel did not rotate.

UT 04:11 - Disconnecting and re-connecting LBC

UT 04:14 - Blue still remains unresponsive

UT 04:16 - Script error from Captain Stupid (aka Barry) - copied OB2 from OB1, yet somehow LBC-B was turned off in OB2

UT 04:25 - Seeing degrading

UT 04:26 - Stopping script after 7 exposures (total) - will re-run DOFPIA as seeing is reported as up to 3.3" in BLUE

UT 04:27 - Running DOFPIA (DIMM 1.3")

UT 04:34 - Reloading NGC_2655_GC_OB2 - DOFPIA converged to 1.5" Red, 2.2" Blue - will take data and see how it goes

UT 04:50 - Seeing is variable

UT 05:18 - Slewing to RU-152 Standard Field

UT 05:20 - RU-152 Standard (Airmass 1.65-1.76) DIMM 1.05"

UT 05:36 - Moving to NGC2655 Co-Pointing OB for DOFPIA

UT 05:39 - Running DOFPIA - DIMM 1.4", converged to Blue 1.4" Red 1.1"

UT 05:44 - Starting NGC_2655_GC_OB3

UT 05:47 - DIMM 1.24" Blue 1.1" Red 1.1"

UT 06:20 - Running DOFPIA

UT 06:31 - Moving SA101 (Uspec,U,B,V,I) Airmass 1.304-1.329

UT 06:43 - Slewing back to NGC 2655 to focus

UT 06:45 - Running DOFPIA 1.22"Blue 0.9" Red

UT 06:49 - Starting NGC_2655_GC_OB4 (Airmass 1.530)

UT 07:00 - DIMM 1.20"

UT 07:24 - Moving to SA101 (Uspec, U,B,V,I) Airmass 1.409-1.549

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UT 07:37 - Switching C.Veillet Recovery Program

UT 07:38 - GET Trajectory Error - Aborting OB (IT #3753)

UT 07:40 - Need to restart PCS/AOS

UT 07:43 - Slewing again to CV Recovery program

UT 07:59 - Completed CV Recovery program

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UT 08:00 - Switching to MODS

UT 08:01 - Taking LBC Biases

UT 08:15 - Pointing/Collimating

UT 08:20 - Moving to FF0937+3857 - Rothberg mid-z ULIRG program

UT 08:23 - mean seeing 0.9" Guider

UT 08:34 - starting integration

UT 09:06 - seeing blown up to 1.5" in Guider (woohoo) DIMM 1.3"

UT 09:16 - seeing 1.38" DIMM 1.5-1.9" in Guider

UT 09:24 - Seeing 2"+ in guider - not seeing anything in MODS1-Blue

UT 09:43 - Finished FF0937+3857 (could see [OII] - otherwise not much else)

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UT 09:44 - Moving to spectrophotometric standard Feige34 (0.6", 1.2" and 5" slit) - Airmass 1.5-1.6

UT 09:52 - Taking spectra

UT 10:14 - Finished Feige 34

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UT 10:15 - Moving to M.Wagner target

UT 10:36 - ID'd field. It required offsets detxy -12.3 -13.141 ... mwagner_target.jpeg. Centered object on slit at Y=610 to avoid the block of bad columns on mods1r at X=1952-1962, Y=1545-1633.

UT 10:40 - started first obs.

UT 11:02 - acquiring using 1130.acq script (POSangle 150.5 deg) since, with overheads of acq, I figure midpoint of next observation will be at parangle=150.5.

• this time offset was: "offsetxy -3.389 8.026 rel". Probably the wrong star was chosen by GCS last time.
• centered object on slit at Y=610

UT 11:14 - starting second obs. FWHM on WFS has been just less than 1" throughout first and second observation (0.95" now). FWHM on guider larger because star is elongated (DAR at this low airmass).

UT 11:45 - acquiring using 1150.acq script (POSangle 155 deg)

• offsetxy -3.442 8.021 rel to center on Y=609.
• relative offset -0.123" left.

UT 11:52 - start third observation. Already 18 deg twilight. Sky 21.71 at start. 20.92 at end. Ended at 12:14 UT, 7 min before 12 deg twilight which is at 12:21 UT.

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