30 August 2018 MST - Night 6 - Vibration Mitigation, search systems for vibrations

Summary

Date: Fri, 31 Aug 2018 08:12:42 -0700
From: Doug Miller 
To: AOGroup 

We turned off many telescope systems and collected 4D vibration
data.  Systems included Tree House Fans, Instrument Cooling,
Chillers, pumps, and LUCI cyropumps.  With “everything” off,
the vibrations seen by the 4D were quite small, and at a level,
I think, low enough to collect good DX AdSec Influence Function
data.  We will now need to create a plan to turn off offending
systems long enough (~ 2 hours) to collect the IF data.  Tonight
I hope.

More vibration data was collected and two new 20 iteration Feed
Forward Matrices.  Guido said he will take a look at the FF data today.

Details

04:36 Turn off systems
  • Many systems off
  • 043600
  • 043800

04:43 LUCI 1 Off
  • MCE/ROE Off
    • 044300
  • Software/Coldhead Off
    • 044500
  • Rack Off

04:47 LUCI 2
  • MC/ROE Off
    • 044700
  • Software/Coldheads Off
    • 044900
  • Rack Off
    • 045200

04:54 Fans, Ucompian for Rotator Off / Air compressor Off
  • 045400

04:56 ULTH two fan units (Chiller been off for a while Steve says 04:30)
  • 045600
  • Fans back on to cool UMacs

04:58 James Off Telescope
  • 045900

05:02 Glycol pumps off
  • 050300

05:05 IC off on both
  • 050500
  • 050600

05:07 Stow Pin In, HBS On
  • 050700

05:08 HBS On
  • DONE 050900
  • 051000
  • Alarm DSP, Cr=3, Board = 10 (55 C)
  • Dx AdSec Powered Off automatically
  • HBS Off
  • adsc_stop, start

05:43 HBS Off, IC On
  • 054300

05: 44 Turn on Glycol pumps
  • 054400

05:45 HBS On
  • 054500
  • 054700

05:49 Tertiary Power Off/ Chiller On
  • 054900 (Chiller may be off)
  • 055000 (Chiller is definitely On)

05:50 M2 Hex Off
  • 055400

05:56 Air Compressor On
  • 055700

06:02 James back on telescope, holding breath
  • 060200
  • 055800

06:04 Utopian ON
  • 060400

06:05 LUCI2 Rack Master Power on
  • 060500

06:06 LUCI1 Rack Master Power On
  • 060700

06:12 LUCI2 Cold Head On
  • DONE 061200

06:14 LUCI1 Cold Head On
  • 061500

06:18 LUCI2 MCE/ROE On
  • 061900

06:20 LUCI1 MCE/ROE On
  • 062000

06:26 LUCI2 MCE/ROE Off till Detector is back to 77K (from 75K)

06:27 Cooling pump #2 On
  • 062700

06:30+ Steve Power On M2, M3, Raise M1. Chiller Running, Mike Turn On Tree House Fans
  • 065500
  • 070100

TN1 =['20180831_043600_noise','20180831_043800_noise','20180831_044300_noise','20180831_044700_noise','20180831_044900_noise','20180831_045200_noise','20180831_045400_noise','20180831_045900_noise','20180831_050300_noise','20180831_050600_noise','20180831_050700_noise','20180831_051000_noise','20180831_054300_noise','20180831_054400_noise','20180831_054500_noise','20180831_054700_noise','20180831_054900_noise']

TN2=['20180831_055000_noise','20180831_055400_noise','20180831_055700_noise','20180831_060200_noise','20180831_060400_noise','20180831_060500_noise','20180831_060700_noise','20180831_061500_noise','20180831_061900_noise','20180831_062000_noise','20180831_062700_noise','20180831_043900_noise','20180831_044100_noise','20180831_065500_noise','20180831_070100_noise']

TN3=['20180831_045400_noise','20180831_055400_noise','20180831_062000_noise','20180831_043900_noise','20180831_044100_noise']

asma_opt_noise_new

TNA1=['20180831_043600_noise','20180831_043800_noise','20180831_044300_noise','20180831_044500_noise ','20180831_044700_noise ','20180831_044900_noise ','20180831_045200_noise ','20180831_045600_noise ','20180831_050500_noise ','20180831_050900_noise ','20180831_054500_noise ']

TNA2=['20180831_055000_noise','20180831_055700_noise','20180831_060200_noise','20180831_060400_noise','20180831_060500_noise','20180831_060700_noise','20180831_061200_noise','20180831_061500_noise','20180831_061900_noise','20180831_062700_noise','20180831_065500_noise']

TNA3=['20180831_050600_noise','20180831_050700_noise','20180831_051000_noise','20180831_062000_noise'] TNA4=['20180831_054400_noise','20180831_054500_noise','20180831_051000_noise','20180831_055800_noise'] TNA5=['20180831_045600_noise','20180831_050500_noise','20180831_050900_noise','20180831_054500_noise']

led-green 20 Iteration, modal with FF

09:33 Use new 5 iteration FF matrix calculated above
  • From IDL AdSec Control Terminal
    • AdOpt> print, fsm_load_program(/AUTO)
    • AdOpt> print, fsm_set_flat(/ff, /no_flat)
    • AdOpt> tn = tracknum()
    • AdOpt> print, tn
      • 20180831_093303
    • AdOpt> print, ff_acquire_v2(tn)
    • estimate 1.30 hours
  • /local/aomeas/adsec_calib/ff_matrix/20180831_093303
  • Normalized Chi^2 ff_matrix: 289.24345 DOF: 7978176

11:25 Add act 145 to No-Pos-List
  • Power cycle DX AdSec
    • AdOpt> print, fsm_set_flat(/ff, /no_flat)
    • AdOpt> tn = tracknum()
    • AdOpt> print, tn
      • 20180831_112922
    • AdOpt> print, ff_acquire_v2(tn)
    • estimate 1.12 hours
  • /local/aomeas/adsec_calib/ff_matrix/20180831_112922
  • Normalized Chi^2 ff_matrix: 185.53547 DOF: 7953571

-- %USERSIG{DougMiller - 2018-08-31}%
Topic revision: r10 - 12 Oct 2018, JohnHill
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