Startup Night 6 - 20140905 UT

Observers: JHill, BRothberg, DMiller (LBTO)
Telescope Operator: GBechetti (LBTO)
AO Support: JCGuerra
Telescope Support: JUrban (LBTO)
Software Support: MDeLPena
Instrument Support: ESolheid (LBTO)
Engineering Support: DAshby

Summary

We never opened due to weather. Lots of time to sort out LBC-Red shutter issues.

Preparations

LBC-red Shutter

James and Conrad working on LBC-Red shutter.

I created /home/lbcobs/supportscripts/SymbioticSupport/R_short.ob which takes 50 x 1 sec exposures reading only 700 rows of chip 2. Including preset,exposure,readout this produces a 1 sec exposure every 13 sec.

00:21 New set of 50 starts with 002152.
2014/09/05 00:22:59.179000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 2.685  2.687
2014/09/05 00:23:38.299000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 2.690  2.692
2014/09/05 00:24:04.342000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 2.691  2.693
2014/09/05 00:24:17.341000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 2.673  2.675
2014/09/05 00:24:43.224868 E R                   camera system encountered a problem: shutter hardware failure (10) [src/channel/channel.c:1215]
2014/09/05 00:24:43.682951 N -                   UI update with message >(RED Channel) OB execution error: (CAMERA) shutter hardware failure!< at 1409876683.682729; ENUI:73d9
2014/09/05 00:25:00.509836 E R                   camera system encountered a problem: shutter hardware failure (10) [src/channel/channel.c:1215]
2014/09/05 00:25:00.967826 N -                   UI update with message >(RED Channel) OB execution error: (CAMERA) shutter hardware failure!< at 1409876700.967617; ENUI:73d9
2014/09/05 00:25:31.659000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 2.679  2.681
2014/09/05 00:25:44.658000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 2.690  2.693
2014/09/05 00:25:57.481991 E R                   camera system encountered a problem: shutter hardware failure (10) [src/channel/channel.c:1215]
2014/09/05 00:25:57.939947 N -                   UI update with message >(RED Channel) OB execution error: (CAMERA) shutter hardware failure!< at 1409876757.939752; ENUI:73d9
2014/09/05 00:27:06.116000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 2.691  2.693
2014/09/05 00:27:19.114000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 1.438  1.440
2014/09/05 00:28:11.123000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 1.438  1.440
2014/09/05 00:28:24.231000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 1.460  1.463
2014/09/05 00:29:16.112880 E R                   camera system encountered a problem: shutter hardware failure (10) [src/channel/channel.c:1215]
2014/09/05 00:29:21.570830 N -                   UI update with message >(RED Channel) OB execution error: (CAMERA) shutter hardware failure!< at 14098

James and Conrad don't see any of these long-time events on the scope. Every time the shutter moves, they see 1.2 sec. Is the shutter not moving on the ones that fail.

01:17 lbckill/lbcstart after is was hung on a Red Trackers "stop"

01:25 James pressing play from his laptop for R_short1.ob -- the first three got the error.
2014/09/05 01:25:08.617000 W R CAMERA   CCDCTRL  measured exposure time not available due to hardware timer failure, read: 1.438  1.440
while they were perfect 1.2 sec exposures on the oscilloscope.

01:50 10 good exposures in a row with a 0.1 microfarad capacitor in place to ground.

02:00 Test #2 -- starting a series of 50 1 sec exposures -- this gave 5 "hardware timer failures" errors out of 100 exposures, and no "shutter hardware errors".

02:38 Test #3 - capacitor plus resistor - much worse 6/25

02:50 Test #4 - capacitor plus pull-up resistor - 4 hardware timer failures out of 150 exposures

03:30 Turn off LBC to change cables

James R finds connector not fully seated, and seats the connector properly.

03:45 Turn on LBC

03:49 Test #5 - RV_short50 to test both Red and Blue (as they were previously configured)
03:51 Red has a "shutter hardware failure".
04:04 Red has a "shutter hardware failure".
03:10 Red has a "shutter hardware failure".
Blue has 3 "hardware timer failures" out of 50, and Red has 23/50 plus the 3 hardware.

04:13 Turn off LBC

05:03 Turn On LBC with new shielded cable installed. (cable between the shutter control box and the Skytech CCD controller)

05:05 Test #6 - - RV_short50 to test both Red and Blue Blue has 2 "hardware timer failures" out of 100, and Red has 14/100 with the new shielded cable.

Archive

New data archive is in place. LBC images are getting written to /newdata but daily /Repository/20140905/ did not get created.

MODS

UT 02:55 - modsDISP not showing updated new images. New images (mods1r/1b.20140905.001-003) appear in both /newdata and /Repository. But MODS1B.new and MODS1R.new show the last sievesnap taken this morning (20140904.0061 for example)

UT 02:55 - restarted IC for Blue and Red and retaking sievesnaps

UT 03:13 - manually loading images with DS9 and running RB_MODS.py both loaded the last files OK. The files are in /newdata and /Repository. Tried restarting modsDisp several times - same issue, it only sees what MODS1B.new and MODS1R.new point to, and those are sieve images from earlier in the day

UT 03:29 - also logged out of obs2 - restarted modsGUI and modsDISP, same issue, modsDISP only sees old images

Details

Heavy thunderstorms off in the direction of Tucson, Benson, Willcox.
Topic revision: r6 - 06 Sep 2014, JohnHill
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