CHL Preflight Night 61236
Executing preflight for 61236 at Tue Jul 14 18:42:09 -04 2026.
Log can be found in /atlas/obs/04/61236/preflight.dat.
Setting donefile '/atlas/obs/04/61236/preflight_complete.20260714224209.18766' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260714224209.18766.
Tue Jul 14 18:42:09 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Jul 14 18:42:09 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [d386afe6-d6c8-4dd4-80e6-2e89181fe959;1800]
Tue Jul 14 18:42:09 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue Jul 14 18:42:10 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue Jul 14 18:42:10 -04 2026 [elapsed=1 sec] auxcam is disabled.
Tue Jul 14 18:42:10 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Jul 14 18:42:10 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1784068923
OK
Tue Jul 14 18:42:10 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Jul 14 18:42:10 -04 2026 [elapsed=1 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
Tue Jul 14 18:42:11 -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
Tue Jul 14 18:42:12 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Jul 14 18:42:12 -04 2026 [elapsed=3 sec] CLOCKS
admin: Tue Jul 14 22:42:12 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 193 1024 377 0.312 1.163 0.633
+10.0.11.4 .GPS. 1 u 513 1024 377 0.548 1.282 0.642
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-alphyn.canonica 132.163.96.1 2 u 1683 1024 376 150.062 -4.879 1.878
-185.125.190.56 99.220.8.133 2 u 417 1024 377 222.327 -5.441 2.233
-185.125.190.58 146.131.121.246 2 u 883 1024 377 220.797 -4.689 1.476
+185.125.190.57 99.220.8.133 2 u 585 1024 377 219.080 -4.517 2.136
Tue Jul 14 18:42:14 -04 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (4733GB)
200GB available in /atlas/red...OK (8917GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.7T 4.6T 56% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 18G 38G 32% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 5.2T 8.6T 38% /
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc2:/dev/md0p1 15T 652G 13T 5% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 903G 13T 7% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc4:/dev/md0p1 15T 696G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Tue Jul 14 18:42:14 -04 2026 [elapsed=5 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
Tue Jul 14 18:42:14 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Tue Jul 14 18:42:14 -04 2026 [elapsed=5 sec] SERVICES2
Tue Jul 14 18:42:14 -04 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Jul 14 18:42:19 -04 2026 [elapsed=10 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= 912kB time=00:00:29.18 bitrate= 256.0kbits/s speed=1.61e+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
Tue Jul 14 18:45:11 -04 2026 [elapsed=182 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: 201.21 -27.58, az/alt=324.68 +86.49 idle(e) IDLE
Tue Jul 14 18:45:49 -04 2026 [elapsed=220 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Jul 14 18:46:11 -04 2026 [elapsed=242 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Tue Jul 14 18:46:11 -04 2026 [elapsed=242 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (10 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.3C)
Checking CCD plane: Z0=-194.00 DZDX=+455.00 DZDY=-414.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Jul 14 18:46:11 -04 2026 [elapsed=242 sec] WEATHER
status weather: C 19.8C 21% 10/11kph@33 DP27.0C/230C/d IDLE
...OK
Tue Jul 14 18:46:12 -04 2026 [elapsed=243 sec] MET
status...OK
met: c=N o=N Ro4 Cx0 Wo4 Ho4 To4 Do14 wait C IDLE
Tue Jul 14 18:46:12 -04 2026 [elapsed=243 sec] SENTRY
status...OK
sentry: close=NO open=NO drop=NO IDLE
Tue Jul 14 18:46:12 -04 2026 [elapsed=243 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 229.88 -12.93, az/alt=59.88 +60.07 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 3 0.0%
B 0.020s -2 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 7 0.1%
A 0.051s 112 1.2%
A 0.081s 396 4.3%
A 0.111s 742 8.1%
A 0.142s 1222 13.3%
A 0.172s 1795 19.6%
A 0.202s 2489 27.2%
A 0.232s 3287 35.9%
A 0.263s 4192 45.8%
A 0.293s 5142 56.2%
A 0.323s 6013 65.7%
A 0.353s 6779 74.1%
A 0.384s 7432 81.2%
A 0.414s 8009 87.5%
A 0.444s 8471 92.5%
A 0.475s 8804 96.2%
A 0.505s 9036 98.7%
A 0.535s 9143 99.9%
A 0.566s 9158 100.0%
B 0.020s 1 0.0%
B 0.051s 91 1.0%
B 0.081s 376 4.1%
B 0.111s 736 8.0%
B 0.141s 1194 13.0%
B 0.172s 1780 19.4%
B 0.202s 2470 27.0%
B 0.232s 3255 35.6%
B 0.262s 4171 45.6%
B 0.293s 5114 55.9%
B 0.323s 5997 65.5%
B 0.353s 6756 73.8%
B 0.383s 7431 81.2%
B 0.414s 8010 87.5%
B 0.444s 8458 92.4%
B 0.474s 8792 96.0%
B 0.504s 9027 98.6%
B 0.535s 9144 99.9%
B 0.565s 9158 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9056 98.9%
A 0.081s 8775 95.9%
A 0.111s 8427 92.1%
A 0.141s 7961 87.0%
A 0.172s 7379 80.6%
A 0.202s 6692 73.1%
A 0.232s 5901 64.5%
A 0.262s 4981 54.4%
A 0.292s 4051 44.3%
A 0.323s 3168 34.6%
A 0.353s 2377 26.0%
A 0.384s 1713 18.7%
A 0.414s 1139 12.4%
A 0.444s 702 7.7%
A 0.474s 355 3.9%
A 0.505s 128 1.4%
A 0.535s 11 0.1%
A 0.565s -5 0.0%
B 0.020s 9147 99.9%
B 0.050s 9032 98.7%
B 0.081s 8762 95.7%
B 0.111s 8407 91.8%
B 0.142s 7943 86.8%
B 0.172s 7357 80.4%
B 0.202s 6664 72.8%
B 0.232s 5871 64.1%
B 0.263s 4958 54.2%
B 0.293s 4007 43.8%
B 0.323s 3141 34.3%
B 0.354s 2350 25.7%
B 0.384s 1698 18.5%
B 0.414s 1135 12.4%
B 0.445s 674 7.4%
B 0.475s 351 3.8%
B 0.505s 121 1.3%
B 0.536s 5 0.1%
A 0 0.0mm 15 N F R | B -4 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.566 seconds.
Shutter B opened to 100.0 percent in 0.565 seconds.
Shutter A closed to 0.0 percent in 0.565 seconds.
Shutter B closed to 0.1 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.14e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[4] foc=9867 IDLE
Tue Jul 14 18:46:46 -04 2026 [elapsed=277 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
taking preflight exposures:
acam...OK
acam image:
156M Jul 14 18:47 /atlas/obs/04a/61236/04a61236e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Jul 14 18:47:09 -04 2026 [elapsed=300 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (7 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Jul 14 18:47:09 -04 2026 [elapsed=300 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61235.94941846|info|galildriver|using focus model: foc=9830+(3.50)*16.5+(-0.35)*60.2=9866.7
61235.94942313|info|galildriver|c 4 IN | cass: 9136642 45.68 mm b=23 move=NO | arm: 406904 473.70 mm b=03 move=OK | foc: 53277398 9867 um b=0f [cmd]
bestfocus for c...OK
Tue Jul 14 18:47:10 -04 2026 [elapsed=301 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Jul 14 18:47:38 -04 2026 [elapsed=329 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.
Tue Jul 14 18:47:39 -04 2026 [elapsed=330 sec] Happy observing!
Tue Jul 14 18:47:39 -04 2026 [elapsed=330 sec] Preflight took 330 seconds to complete.
Tue Jul 14 18:47:39 -04 2026 [elapsed=330 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
Preflight image
Shutter acutation data:
A 0.020s 3 0.0% A 0.051s 108 1.2% A 0.081s 376 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.171s 1762 19.2% A 0.202s 2441 26.7% A 0.232s 3239 35.4% A 0.262s 4145 45.3% A 0.292s 5074 55.4% A 0.323s 5970 65.2% A 0.353s 6752 73.8% A 0.383s 7414 81.0% A 0.413s 7989 87.3% A 0.443s 8431 92.1% A 0.474s 8783 95.9% A 0.504s 9016 98.5% A 0.534s 9134 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 120 1.3% B 0.081s 390 4.3% B 0.111s 727 7.9% B 0.141s 1201 13.1% B 0.171s 1772 19.4% B 0.202s 2468 27.0% B 0.232s 3269 35.7% B 0.262s 4167 45.5% B 0.292s 5102 55.7% B 0.322s 5987 65.4% B 0.352s 6773 74.0% B 0.383s 7440 81.3% B 0.413s 8002 87.4% B 0.443s 8456 92.4% B 0.473s 8794 96.1% B 0.504s 9017 98.5% B 0.534s 9138 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9055 98.9% A 0.081s 8784 96.0% A 0.111s 8432 92.1% A 0.141s 7973 87.1% A 0.171s 7400 80.8% A 0.202s 6714 73.3% A 0.232s 5921 64.7% A 0.262s 5012 54.8% A 0.292s 4067 44.4% A 0.323s 3194 34.9% A 0.353s 2408 26.3% A 0.383s 1732 18.9% A 0.413s 1163 12.7% A 0.444s 706 7.7% A 0.474s 367 4.0% A 0.504s 129 1.4% A 0.534s 16 0.2% A 0.565s 1 0.0% B 0.020s 9146 99.9% B 0.050s 9027 98.6% B 0.081s 8781 95.9% B 0.111s 8436 92.2% B 0.141s 7971 87.1% B 0.172s 7400 80.8% B 0.202s 6715 73.4% B 0.232s 5920 64.7% B 0.262s 5012 54.8% B 0.293s 4084 44.6% B 0.323s 3193 34.9% B 0.353s 2416 26.4% B 0.383s 1724 18.8% B 0.413s 1162 12.7% B 0.444s 712 7.8% B 0.474s 365 4.0% B 0.504s 138 1.5% B 0.534s 16 0.2% B 0.564s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R