UT 20230907: Restart Night#6



Night Info

For the night of: Wed, 2023 Sep 6 ---> Thu, 2023 Sep 7
Local midnight = 2023 Sep 7,  7 hr UT, or JD 2460194.792
Local Mean Sidereal Time at midnight =  22 44 51.8

Sunset ( 1000 m horizon):   18 43 MST; Sunrise:   5 53 MST
Evening twilight:  20 02 MST;  LMST at evening twilight:  18 46
Morning twilight:   4 34 MST;  LMST at morning twilight:   3 20
12-degr twilight: 19 32 MST -->  5 04 MST; night center:   0 18 MST

Moonrise:  23 00 MST   
Moon at civil midnight: illuminated fraction 0.457
0.4 days after last quarter, RA and dec:   5 12 24, +26 34.2

The sun is down for 11.2 hr;  8.5 hr from eve->morn 18 deg twilight.
 3.0 dark hours after end of twilight and before moonrise.

Weather:


Staff

  • OSA: Steve Allanson
  • ISA/SO: Andrew Cardwell
  • ECD Coordinator: Jenny Power

Summary

Night Plan

On-Sky Plan

MODS
  1. MODS Sky flats
    • Completed 3Kx3K imaging flats in ugri
    • Pending 3Kx3K imaging flats z
  2. DONE Field Aberration LDG, RDG: Requires Seeing <1.2"
  3. Photometric Standards
    • Available first half: Need to check nimgs in scripts (times based on scripts in Restart_2022).
      • DONE M71 : twilight - 8UT: ~30 min (21 for the script and the extra for slew+collim)
        • dual (8 min)
        • red (7 min)
        • blue (6 min)
      • DONE M92: twilight - 6 UT ~40 min
        • dual (12 min)
        • red (12 min)
        • blue (10 min)
      • M13: twilight - 5 UT
  4. Science-like script
    • Similar to transform data collection so optional
    • Science-Like with Dual Grating: NGC 40 - 00hr +72 (generate from Restart OT)
    • DONE Dual Imaging NGC6764_ugriz.xml (MODS_2023/MODS_2023_workspace) 19hr +50d (seeing <1.2")
      • May need to adjust exposure times
  5. DONE Blind Offset test
    • StoneA or G20p25, execute longslit blind offset acquisition.
  6. DONE Rotator Zero Points
    • Scripts and MMS files are located: /home/lbto/Service_Observing/Restart_2023/MODS/RZP
    • These 3 masks cover the night. Try to align 1 more masks. ~15 min each.
      • One mask was not perfectly aligned. retry:
      • DONE 00p25 (repeat)
      • 04p25
  7. Spectrophotometric Standards
    • BD+33 until 04:30UT, BD+28 until 10UT, DONE Feige110 6-10UT, G191-B2B from 9:30UT to twilight. Try to get Feige110 and/or G191-B2B which means standards are 2nd half of night.
    • If Clear, 2-3 spectra/mode
      For 3 spectra/mode, this will take 1hr/star
    • If not clear, 1 spectrum/mode
      One spectrum/mode will take 36 min

LBC Checkout
  1. Twilight flats: Try to obtain flats through all 6 B and 8 R filters during the course of restart
    • Completed LBCB r LBCB r
  2. TMS testing: Run TMS with the following This will check:
    1. Observe with guiding and dithering: There are a few science-like OBs in the checkout OT
      1. DONE BlueSnowball (23h42d)
      2. DONE LittleDumbell (1hr51deg)
    2. #Standard Fields*: If photometric, observe at least one photometric standard star field from each set (also tests dithering, but not guiding):
      1. Clem & Landolt
        • LBCB: UBV
        • LBCR: VRI
      2. sdssY
        • LBCB:gr (+Us as filler)
        • LBCR: rizY

PEPSI - Unavailable (Focus checks continue)

Dependent on the status of PEPSI
  1. AGw7/8 Alignment
    • Verify SH
  2. M3 Alignment PFU
    • Pupil alignment check - find star and center it
  3. Throughput measurements (2 hrs over 3-4 nights)

Closed Dome Plan

  1. SX Flat optimization with LBTI WFS
    1. Configure the telescope for LBTI (can not be done in parallel to moving telescope or swingarm tasks)
    2. Requires stow mins in, on oil, dark chamber, argos source deployed
    3. Acquire the argos source with the LBTI WFS, close the loop. Save a new flat. Rinse and repeat
  2. MODS reference Calibrations: Contingent on repairs to MODS1 quadcell and completion of tasks 1 & 2
    • Telescope at zenith, lights off for all but the lamps. Take these as able, but try to get through the (1) BIases, (2) Comparison lamps (grating), (3) Slitless pixel flats and (4) Imaging flats and then the dual grating slit flats.
    1. Slit flats:
      • Dual
        • 2.4" - 18 min
        • 5" - 18 min
        • 0.3" -
      • Red (67, w/o 0.3")
        • 0.3"
      • Blue (81, w/o 0.3")
        • 0.3" - 15 min
    2. Comparison lamps (prism = prlamps)
      • 23 min total - good check on whether all the lamps are working.
        • dual - 8 min
        • red - 7 min
        • blue - 7 min


Night log

https://docs.google.com/document/d/1TPDmgkbvYkpJhtFWwJMz279Jg0wgAbB1f-qCKI1ceaA/edit?usp=sharing

-- JenniferPower - 06 Sep 2023
Topic revision: r6 - 09 Sep 2023, JenniferPower
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