CHL Preflight Night 61142

Executing preflight for 61142 at Sat Apr 11 17:29:44 -04 2026.
Log can be found in /atlas/obs/04/61142/preflight.dat.
Setting donefile '/atlas/obs/04/61142/preflight_complete.20260411212944.11519' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260411212944.11519.
Sat Apr 11 17:29:44 -04 2026 [elapsed=0 sec] DFM (initialization)
  get service string...OK
  service is running...OK
  is initialized...OK

Sat Apr 11 17:29:44 -04 2026 [elapsed=0 sec] Getting TCS lock.

OK TCS lock granted to preflight-CHL [b56500b4-0611-417b-9132-5cd039a29dcb;1800]
Sat Apr 11 17:29:44 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw  3  ON redLED
Sat Apr 11 17:29:44 -04 2026 [elapsed=0 sec] About to start CHL preflight.  Point your web browser at http://localhost:7454.
Sat Apr 11 17:29:44 -04 2026 [elapsed=0 sec]   auxcam is disabled.
Sat Apr 11 17:29:44 -04 2026 [elapsed=0 sec]   Skipping auxcam.
error: unknown module: vent
Sat Apr 11 17:29:44 -04 2026 [elapsed=0 sec] DEADMAN
  Get heartbeat host ... got 'tcs'
  Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1775942977
OK
Sat Apr 11 17:29:44 -04 2026 [elapsed=0 sec] OPSEC
  AUTO mode:  ...OK
Sat Apr 11 17:29:44 -04 2026 [elapsed=0 sec] CLUSTER NFS MOUNTS
  admin proc1:/export/atlas-cal...OK
  admin proc1:/export/atlas-red...OK
  proc1 admin:/export/atlas-obs...OK
  proc2 admin:/export/atlas-obs...OK
  proc2 proc1:/export/atlas-cal...OK
  proc2 proc1:/export/atlas-red...OK
  proc3 admin:/export/atlas-obs...OK
  proc3 proc1:/export/atlas-cal...OK
  proc3 proc1:/export/atlas-red...OK
  proc4 admin:/export/atlas-obs...OK
  proc4 proc1:/export/atlas-cal...OK
  proc4 proc1:/export/atlas-red...OK

Sat Apr 11 17:29:46 -04 2026 [elapsed=2 sec] SCREENS
  admin dash-tcsdata...OK
  admin dash-recent...OK
  admin dash-skycoverage...OK
  admin dash-logstamp...OK
  proc1 redq...OK
  proc1 prochain-redpost-04a...OK
  proc1 prochain-redpost-04x...OK

Sat Apr 11 17:29:47 -04 2026 [elapsed=3 sec] QUEUE
  0 observations queued.

Sat Apr 11 17:29:47 -04 2026 [elapsed=3 sec] CLOCKS
  admin:      Sat Apr 11 21:29:47 UTC 2026
  met:        OK
  proc1:      OK
  proc2:      OK
  proc3:      OK
  proc4:      OK
  archon:     OK

  NTP:
       remote           refid      st t when poll reach   delay   offset  jitter
  ==============================================================================
  *metbox2.chl.atl .PPS.            1 u   58  256  377    0.299    1.205   1.044
  +10.0.11.4       .GPS.            1 u  219  256  377    0.615    2.454   0.535
   ntp.ubuntu.com  .POOL.          16 p    -   64    0    0.000    0.000   0.000
  -185.125.190.57  99.220.8.133     2 u  290  512  377  223.353   -6.800   1.660
  -185.125.190.58  146.131.121.246  2 u  133  512  377  223.432   -5.506   0.929
  +alphyn.canonica 132.163.96.1     2 u  570  256  374  158.051   -1.783   4.153
  -185.125.190.56  146.131.121.246  2 u  136  256  377  222.133   -5.291   0.987

Sat Apr 11 17:29:48 -04 2026 [elapsed=4 sec] DISKS
  200GB available in /atlas/obs...OK (4018GB)
  200GB available in /atlas/red...OK (7874GB)

  Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done

  Filesystem                                Size  Used  Avail  Use%  Mounted_on
  admin:/dev/md0p1                          11T   6.4T  3.9T   63%   /
  admin:/dev/loop2                          105M  105M  0      100%  /snap/core/17272
  admin:/dev/loop0                          106M  106M  0      100%  /snap/core/17284
  archon:/dev/mapper/ubuntu--vg-ubuntu--lv  58G   20G   35G    37%   /
  archon:/dev/loop0                         106M  106M  0      100%  /snap/core/17284
  archon:/dev/loop1                         105M  105M  0      100%  /snap/core/17272
  archon:/dev/sda2                          974M  321M  586M   36%   /boot
  archon:/dev/sda1                          511M  4.4M  507M   1%    /boot/efi
  proc1:/dev/md0p1                          15T   6.2T  7.6T   45%   /
  proc1:/dev/sda1                           511M  6.7M  505M   2%    /boot/efi
  proc1:/dev/loop2                          105M  105M  0      100%  /snap/core/17272
  proc1:/dev/loop1                          106M  106M  0      100%  /snap/core/17284
  proc2:/dev/md0p1                          15T   444G  13T    4%    /
  proc2:/dev/loop2                          105M  105M  0      100%  /snap/core/17272
  proc2:/dev/loop1                          106M  106M  0      100%  /snap/core/17284
  proc3:/dev/md0p1                          15T   902G  13T    7%    /
  proc3:/dev/loop2                          105M  105M  0      100%  /snap/core/17272
  proc3:/dev/loop0                          106M  106M  0      100%  /snap/core/17284
  proc4:/dev/md0p1                          15T   692G  13T    6%    /
  proc4:/dev/loop2                          105M  105M  0      100%  /snap/core/17272
  proc4:/dev/loop0                          106M  106M  0      100%  /snap/core/17284

Sat Apr 11 17:29:48 -04 2026 [elapsed=4 sec] SERVICES1
xcam
  chiller...OK
  dome...OK
  mount...OK
  modo...OK
  cam...OK
  acam...OK
  weather...OK
  met...OK
  sentry...OK
  dfm...OK
  duplicates...OK

Sat Apr 11 17:29:48 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Sat Apr 11 17:29:48 -04 2026 [elapsed=4 sec] SERVICES2

Sat Apr 11 17:29:48 -04 2026 [elapsed=4 sec] CHILLER
  status...OK
  chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE


Sat Apr 11 17:29:52 -04 2026 [elapsed=8 sec] DOME
  status...OK
  audio setup: using amcam-mezz-s to record
  Pointing webcam to azcheck position ... done
  Homing the dome ... waiting ... done
  Attempting audio conversion ... size=     914kB time=00:00:29.24 bitrate= 256.0kbits/s speed=1.55e+03x    
audio converted to domehome.wav.
  Copy dome audio to dashboards ... done
  slewing to azimuth 0 (N)...OK
  Copy azcheck JPEG to dashboards ... done
  parking...OK
  dome: AZ=35.00 CLOSED/CLOSED (0%) IDLE


Sat Apr 11 17:33:12 -04 2026 [elapsed=208 sec] MOUNT
  blinky  status...OK
  motor logs...OK
  slewing to az=70,alt=70...OK
  slewing to az=290,alt=70...OK
  parking...OK
  mount: 90.62 -27.58, az/alt=324.55 +86.48 idle(e) IDLE


Sat Apr 11 17:34:17 -04 2026 [elapsed=273 sec] MODO
  status...OK
  slewing to az=60,alt=60...OK
  modo: dome=stopped mount=tracking IDLE


Sat Apr 11 17:34:42 -04 2026 [elapsed=298 sec] CAM SERVICE
  status...OK
  cam: main=[idle] aux=[off] N=190/0 spi=38.9 IDLE

Sat Apr 11 17:34:42 -04 2026 [elapsed=298 sec] ACAM
  status  Camera tripped exists... OK
  Camera tripped is current... OK (6 seconds old)
  Software failsafe ready... OK (NA)
  CCD on...OK
  ION pump on...OK
  CCD temp...OK (-53.9C)
  Checking CCD plane: Z0=-197.00  DZDX=+462.00  DZDY=-414.00 
  acam: -54C CCD TEC ION e=30.0s d=0.6s N=190 IDLE

Sat Apr 11 17:34:42 -04 2026 [elapsed=298 sec] WEATHER
  status  weather: clear 26.1C 19% 9/12kph@297 DP26.5C/-5C/d IDLE
...OK

Sat Apr 11 17:34:42 -04 2026 [elapsed=298 sec] MET
  status...OK
  met: c=N o=Y Ro13h Co6d Wo6d Ho6d To6d Do6d  IDLE

Sat Apr 11 17:34:42 -04 2026 [elapsed=298 sec] SENTRY
  status...OK
  sentry: close=YES open=NO drop=NO IDLE

Sat Apr 11 17:34:42 -04 2026 [elapsed=298 sec] DFM (SHUTTERS)
  initializing and homing shutters...
mount          119.30 -12.93, az/alt=59.87 +60.08 tracking(w)      IDLE      1s
A     0  0.0mm   15 N F R | B     0  0.0mm   15 N F R
initialized motor A constants
initialized motor B constants
A     0  0.0mm   15 N F R | B     0  0.0mm   15 N F R
A  0.020s     2   0.0%
B  0.020s    -1   0.0%
A     2  0.1mm   15 N F R | B    -1 -0.0mm   15 N F R
finding forward (close) limit for shutter A
...done
backing off limit
...................backing off 4 sec...
at limit
done
finding forward (close) limit for shutter B
...done
backing off limit
.................backing off 4 sec...
at limit
done
A     0  0.0mm   15 N F R | B     0  0.0mm   15 N F R
  exercising shutters...Using amcam-mezz-s to record
A  0.020s     8   0.1%
A  0.051s    96   1.0%
A  0.081s   381   4.2%
A  0.111s   729   8.0%
A  0.142s  1207  13.2%
A  0.172s  1781  19.5%
A  0.202s  2469  27.0%
A  0.233s  3257  35.6%
A  0.263s  4165  45.5%
A  0.294s  5112  55.8%
A  0.324s  5983  65.4%
A  0.355s  6809  74.4%
A  0.385s  7450  81.4%
A  0.415s  8023  87.6%
A  0.446s  8469  92.5%
A  0.476s  8802  96.2%
A  0.506s  9035  98.7%
A  0.537s  9142  99.9%
A  0.567s  9157 100.0%
B  0.020s     1   0.0%
B  0.050s    90   1.0%
B  0.081s   375   4.1%
B  0.111s   735   8.0%
B  0.141s  1191  13.0%
B  0.172s  1780  19.4%
B  0.202s  2470  27.0%
B  0.232s  3254  35.5%
B  0.263s  4170  45.6%
B  0.293s  5112  55.8%
B  0.323s  5996  65.5%
B  0.353s  6782  74.1%
B  0.384s  7431  81.2%
B  0.414s  8010  87.5%
B  0.444s  8458  92.4%
B  0.475s  8792  96.0%
B  0.505s  9031  98.7%
B  0.535s  9145  99.9%
sleeping 3 sec between shutter moves...
A  0.020s  9151 100.0%
A  0.051s  9051  98.9%
A  0.081s  8773  95.8%
A  0.112s  8437  92.2%
A  0.142s  7949  86.8%
A  0.173s  7349  80.3%
A  0.203s  6666  72.8%
A  0.233s  5862  64.0%
A  0.264s  4947  54.0%
A  0.294s  4026  44.0%
A  0.324s  3140  34.3%
A  0.354s  2366  25.8%
A  0.385s  1681  18.4%
A  0.415s  1125  12.3%
A  0.445s   690   7.5%
A  0.476s   347   3.8%
A  0.506s   130   1.4%
A  0.537s     7   0.1%
B  0.020s  9149  99.9%
B  0.051s  9045  98.8%
B  0.081s  8782  95.9%
B  0.111s  8417  91.9%
B  0.142s  7960  87.0%
B  0.172s  7379  80.6%
B  0.203s  6686  73.0%
B  0.233s  5898  64.4%
B  0.263s  4990  54.5%
B  0.294s  4036  44.1%
B  0.324s  3166  34.6%
B  0.354s  2372  25.9%
B  0.385s  1719  18.8%
B  0.415s  1152  12.6%
B  0.445s   684   7.5%
B  0.476s   360   3.9%
B  0.506s   126   1.4%
B  0.536s     7   0.1%
A     0  0.0mm   15 N F R | B    -2 -0.1mm   15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.567 seconds.
Shutter B opened to 99.9 percent in 0.535 seconds.
Shutter A closed to 0.1 percent in 0.537 seconds.
Shutter B closed to 0.1 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size=     226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.2e+03x    
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done

DFM (FOCUS)
  changing to best focus...  dfm: filter=o[3] foc=9892 IDLE

Sat Apr 11 17:35:20 -04 2026 [elapsed=336 sec] IMAGING (acam+auxcam)
  status...OK
  cam: main=[idle] aux=[off] N=190/0 spi=38.9 IDLE
  taking preflight exposures:
  acam...OK
  acam image:
    160M Apr 11 17:35 /atlas/obs/04a/61142/04a61142e0001o.arch.fz
  AUXCAM: Skipping (noauxcam=1).

Sat Apr 11 17:35:43 -04 2026 [elapsed=358 sec] DEHUMIDIFIER
  OTA humidity exists...OK
  OTA humidity is current... OK (37 seconds old)
  OTA humidity level...OK (6%)
  Dome humidity exists...OK
  Dome humidity is current... OK

Sat Apr 11 17:35:43 -04 2026 [elapsed=359 sec] SCHEDULE
  Status...OK
  Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61141.89980723|info|galildriver|using focus model: foc=9830+(3.50)*22.9+(-0.35)*60.3=9889.1
61141.89981224|info|galildriver|o  3 IN  | cass:  6105732  30.53 mm b=23 move=NO       | arm:   407123 473.96 mm b=03 move=OK       | foc: 53272299  9893 um b=8f M     [focus]
61141.89982238|info|galildriver|o  3 IN  | cass:  6105733  30.53 mm b=23 move=NO       | arm:   407123 473.96 mm b=03 move=OK       | foc: 53272599  9891 um b=0f       [cmd]
bestfocus for o...OK


Sat Apr 11 17:35:44 -04 2026 [elapsed=360 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.

Sat Apr 11 17:36:17 -04 2026 [elapsed=393 sec] Disabling mount tracking.
  Waiting on the mount ... done.
  Turning tracking off ... done.
  Waiting on the mount ... done.
  Recheck mount status ... done.
sitepsw  3 OFF redLED
sitepsw  4 OFF whiteLED

Preflight completed successfully.  See
http://tinyurl.com/chlpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.

Sat Apr 11 17:36:19 -04 2026 [elapsed=395 sec] Happy observing!
Sat Apr 11 17:36:19 -04 2026 [elapsed=395 sec] Preflight took 395 seconds to complete.


Sat Apr 11 17:36:19 -04 2026 [elapsed=395 sec] STARTING CLEANUP
Turning off LEDs
sitepsw  3 OFF redLED
sitepsw  4 OFF whiteLED
Releasing TCS lock [preflight]
OK TCS lock released by preflight-CHL

  
Azimuth check

Preflight image

Dome audio


Shutter audio

Shutter acutation data:

A  0.020s     4   0.0%
A  0.051s   122   1.3%
A  0.082s   405   4.4%
A  0.112s   762   8.3%
A  0.143s  1231  13.4%
A  0.173s  1843  20.1%
A  0.203s  2538  27.7%
A  0.234s  3350  36.6%
A  0.264s  4265  46.6%
A  0.295s  5191  56.7%
A  0.325s  6078  66.4%
A  0.356s  6843  74.8%
A  0.386s  7513  82.1%
A  0.417s  8071  88.2%
A  0.447s  8507  92.9%
A  0.478s  8828  96.4%
A  0.508s  9049  98.9%
A  0.538s  9146  99.9%
B  0.020s     2   0.0%
B  0.051s   110   1.2%
B  0.081s   387   4.2%
B  0.111s   741   8.1%
B  0.142s  1219  13.3%
B  0.172s  1796  19.6%
B  0.203s  2492  27.2%
B  0.233s  3322  36.3%
B  0.264s  4229  46.2%
B  0.294s  5161  56.4%
B  0.324s  6044  66.0%
B  0.355s  6818  74.5%
B  0.386s  7480  81.7%
B  0.416s  8050  87.9%
B  0.447s  8493  92.8%
B  0.477s  8822  96.4%
B  0.508s  9039  98.7%
B  0.538s  9144  99.9%
B  0.569s  9156 100.0%
sleeping 3 sec between shutter moves...
A  0.020s  9152 100.0%
A  0.051s  9050  98.9%
A  0.081s  8777  95.9%
A  0.112s  8408  91.9%
A  0.142s  7941  86.7%
A  0.173s  7359  80.4%
A  0.203s  6668  72.8%
A  0.234s  5839  63.8%
A  0.264s  4920  53.7%
A  0.295s  3979  43.5%
A  0.325s  3111  34.0%
A  0.355s  2340  25.6%
A  0.386s  1670  18.2%
A  0.416s  1114  12.2%
A  0.446s   669   7.3%
A  0.477s   339   3.7%
A  0.507s   114   1.2%
A  0.538s    10   0.1%
A  0.568s     2   0.0%
B  0.020s  9145  99.9%
B  0.051s  9018  98.5%
B  0.081s  8772  95.8%
B  0.111s  8420  92.0%
B  0.142s  7951  86.9%
B  0.172s  7378  80.6%
B  0.203s  6690  73.1%
B  0.233s  5865  64.1%
B  0.264s  4950  54.1%
B  0.294s  4022  43.9%
B  0.324s  3137  34.3%
B  0.355s  2370  25.9%
B  0.385s  1683  18.4%
B  0.415s  1131  12.4%
B  0.445s   687   7.5%
B  0.476s   347   3.8%
B  0.506s   127   1.4%
B  0.536s    12   0.1%
B  0.566s     1   0.0%
A     0  0.0mm   15 N F R | B     1  0.0mm   15 N F R