UT 20150402 LUCI2 AO Nighttime Commissioning

Observer LUCI-Team: JHeidt, WSeifert, APramskiy, DThompson (LBTO)
Observer AO-Team: SEsposito, GAgapito, EPinna, APuglisi
Telescope Operator: GBechetti
LBTO Support: TSargent

Plan for the night

LUCI2/AGw still in lab, night was converted to LBTO engineering night


- Did some grating/focus tests

- MOS error, but recovered, rotator angle at storage in config file was slightly off


Again lots of work done by the Arcetri group during daytime, AO/AGw almost fixed


All times are UT
Files are luci2.20150402.NNNN.fits

  • Grating/Field alignment

- N30: Align Gratings in y direction
G210 FM4 M1 +4000steps
G200 FM4 M1 +3500steps
G40 FM4 M1 +7000steps

- N375 -> N30 field re-align
measured with N30 LS slit
FM4 M1: +2550steps M2: -2150steps
and reverse if switching from N30 to N375

- alignment gratings in y-direction:
G210: FM4 M1 +4000 steps
G200: FM4 M1 +3500 steps
G40: FM4 M1 +7000 steps

  • Grating tilt stability

Slitview, N30 LS neu2, clear/K, 3sec, xcen=1040, #78
FM4 M1 +7000steps, Grating G40, 2.0992mue, clear, clear, DIT=20sec, NDIT=20, #79-98

  • Grating tilt repro

G40: 2.17,2.12mue, 20sec, clear/K, #99,100, tilt too large
2.17,2.15, 2.17,2.19,2.17,2.15,2.17,2.19,2.17mue, qapprox. 2pix rms, #101-109
dark, 20sec, #110

G210: 3sec, 2.17, 2.12, 2.17, 2.22, 2.17, 2.12, 2.17, 2.22, 2.17mue, approx. 0.5pix rms, #111-119
dark, 3sec, #120

G200: clear, HKspec, 3sec, 2.17, 2.12, 2.17, 2.22, 2.17, 2.12, 2.17, 2.22, 2.17mue, approx. 0.2pix rms, #121-129

  • Verification best focus

10:19 MOS error turnout to storage, rotator angle at storage 0.7deg out of tolerance interval
Tried to contact PBuschkamp

12:20 MOS recovered, reason: rotator angle entry in the config-file for mask N30 Sieb II slightly off

N30, N30 Sieb II, clear/K, 10*50sec int. #131
N3.75, optic sieve, clear/K, 10*5sec int. #132
N1.8, optic sieve, clear/K, 10*5sec int. #133
Topic revision: r6 - 02 Apr 2015, JochenHeidt
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