-- RunaBriguglio - 05 Apr 2010

Preliminary operations

gap on its nominla range

telescope at zenith, mirror set 01:41:09UT successfully

Maximum mode index used to apply flat -> # 268
COMM MAX [m] 7.75797e-05
FORCE MAX [N] 0.305958

2010-04-05 01:45:00.567168| FUNCTWARNING > FunctWarning CHINTCONTROLCURRENT-0240 -0.300614 series

it is giving rise to a "ear" on the mirror edge

01:46:27 came back

02:00:28. telescope moved down to 20° elev #240 ear is visible 02:01:01

02:14 dome open

02:20 telescope to zenith

03:23:34 windspeed up to 6 m/s

some data saved in /telemetry_out/telemetry-20100405_031000-20100405_032500.sav

2010-04-05 04:56:32.116605| FUNCTWARNING > FunctWarning CHINTCONTROLCURRENT-0483 -0.301149

04:58:06 telescope moved

2010-04-05 04:58:51.833286| FUNCTEMERGENCYST > CHCURRAVERAGE-0530 = -0.8

recover failure

05:00:45 mirror set

Maximum mode index used to apply flat -> # 197
COMM MAX [m] 7.76074e-05
FORCE MAX [N] 0.314749

large ear found corresponding to the 3 external acts removed. the ear disappeared with (or close to) the application of the astigmatism
verify data from 05:02:01 to 05:02:16

05:07:28 adsec arb found dead, restarted but ho_offload is not running. restarted by hand

AOS cycled off-on

forces are lower with respect to before

Series of failures

2010-04-05 07:03:45.400081| FUNCTEMERGENCYST > CHCURRAVERAGE-0530 = -0.8

the ear noticed on 27 march.... is visible: position at rip:25um<pos<52um

07:07:05 mirror set not executed, recovering

07:13:40 Mirror set

Maximum mode index used to apply flat -> # 261
COMM MAX [m] 7.77885e-05
FORCE MAX [N] 0.381750

2010-04-05 07:15:36.879850| FUNCTWARNING > FunctWarning CHINTCONTROLCURRENT-0004 0.322411

RIP:

|2010-04-05 07:16:40.210066| FUNCTEMERGENCYST > CHCURRAVERAGE-0530 = -0.790059

FUNCTWARNING > FunctWarning CHDISTRMS-0019 6.00917e-08

mirror set but rip: 2010-04-05 07:21:10.840136| FUNCTEMERGENCYST > CHCURRAVERAGE-0537 = -0.795006

07:24:33 mirror set but rip

07:27:52 mirror set but rip every times the coils are disabled: error enabling coils

system reset: adsc_stop, adsc_start

!!! AOS is found died!! 7:30:44 AOS died unexpectedly , but this is not connected with the rip

07:35:17 mirror set failed

2010-04-05 07:36:22.286033| FUNCTEMERGENCYST > CHCURRAVERAGE-0045 = -0.794338

?? if the wind speed is high while setting, what's the effect on the shell?

07:40:30 until 07:41: 00. the telescope has been moved 180° in azimuth, to a wind free position. check in FASDTGN log if the number of errors decreases (and it seems to be so)

07:43:00 mirror set successfully

Maximum mode index used to apply flat -> # 297
COMM MAX [m] 7.76050e-05
FORCE MAX [N] 0.278099

the shell is ripped again:

2010-04-05 07:51:26.558376| FUNCTEMERGENCYST > CHCURRAVERAGE-0045 = -0.8

07:55:52 mirror set but fails

2010-04-05 07:56:02.213099| FUNCTEMERGENCYST > CHDISTAVERAGE-0004 = 0.123812

08:01:53 mirror set but fails

2010-04-05 08:02:56.668877| FUNCTEMERGENCYST > CHCURRAVERAGE-0045 = -0.795199

#45 removed from curr, system restarted 08:10:49

the guis are not responding to command. print, fsm_load_program(/auto)

08:22:10 mirror set fails

2010-04-05 08:23:23.721050| FUNCTEMERGENCYST > CHCURRAVERAGE-0004 = 0.8

08:25:22 mirror set successful

Maximum mode index used to apply flat -> # 183
COMM MAX [m] 7.76084e-05
FORCE MAX [N] 0.322632

09:47 watermain inlet, watermainoutlet are tto high with respct to the chamber: a valve was stucked

10:05 system cooled again (maybe too rapidly...)

End of operation 12:27:40 ripping the shell

I Attachment Action Size Date Who Comment
2010_04_05.docdoc 2010_04_05.doc manage 585 K 05 Apr 2010 - 12:35 RunaBriguglio  
240err.JPGJPG 240err.JPG manage 83 K 05 Apr 2010 - 01:55 RunaBriguglio  
cooling.JPGJPG cooling.JPG manage 62 K 05 Apr 2010 - 10:03 RunaBriguglio  
wind.JPGJPG wind.JPG manage 49 K 05 Apr 2010 - 03:39 RunaBriguglio  
Topic revision: r7 - 05 Apr 2010, RunaBriguglio
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