Staff:

LBTO:David, Dave, Juan Carlos

Observer: Liang (remote)

Summary

Science object to be observed around 2am.

Change to AO. The ref star is mag 17.2. Star in the CCD47 and loop close. Seeing bouncing to 2.5", As soon the loop was closed , the transparency os the sky changes and loop open. a second attempt to close the loop was done, but at this time the sky transparency was very bad and the star couldn't be identified in the CCD47. also in the guider the star was not there any more. Wait for about 10 minutes and decided to switch to seeing limited obs.

Not a very good time for an AO program.

Alta.

alta1_20221101.png

alta2_20221101.png

Details.

00:41 (UT)
  • Power on WFS
  • Ocam OK.
2:20am
  • PresetAO
  • mag 17.2
  • gain 0.4,0.2,0.05
  • slope rms 0.7
  • elevation 30
  • clouds passing.
  • pupil images disapering...
  • seeing jump to 2.3arcsec
  • loop open.
  • luci first image elongated.
  • seeing bouncing to 1.7-2.6"
  • Humidity going up.
  • Second attemp to acquire there is a very faint star that it comes and goes.
  • Process center star didn;t find any star.
  • Waiting and there is not star in the CCD47.

images_guider20221101.png
  • David is checking the sky.
allsky_20221101.png
  • Proceed wtihotut the AO.
  • sky to variable.
2:30 am

Change to spec

-- JuanCarlosGuerra - 01 Nov 2022
Tn TT HO1 HO2 SR ATT Peak130 x Peak130 y
172035 1.96 0.57 0.52 0.89    
172333         0.012 0.0057
          0.016 0.002
172333 1.09   0.29 89    
172836 1.65   0.3 76 0.0089 0.002
172940 1.65   0.4 75    
195807 2.89 0.67 0.53   0.005 0.0038
203210       91 0.0029 0.0018
203423 2.65 0.67 0.53 91 0.002 0.0014
203647 2.94 0.67 0.53 91 0.014 0.006
203952 2.14 0.67 0.53 91 1 0.36
204122 2.81 0.67 0.58      
204256 2.81 0.67 0.58 0.93 0.0048 0.0016
204512 2.21 0.67 0.58 89 0.002 0.001
205530 2.81 0.57 0.52      
210020 2.81 0.57 0.52 93 0.0049 0.004
210228 2.96 0.57 0.52   0.02 0.008
210357 3.06 0.57 0.56 91 0.025 0.10
210551 3.06 0.47 0.37 0.92 0.02 0.01
210750 2.42 0.47 0.37 0.9 0.003 0.0028
211019 1.3   0.2 0.84    
211727 1.51   0.2 0.83 0.012 0.007
211851 1.66   0.2 0.83 0.12 0.0006
212148 1.21   0.2 0.83 0.12 0.0057
Topic revision: r3 - 02 Nov 2022, JuanCarlosGuerra
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