CHL Preflight Night 61154
Executing preflight for 61154 at Thu Apr 23 17:16:53 -04 2026.
Log can be found in /atlas/obs/04/61154/preflight.dat.
Setting donefile '/atlas/obs/04/61154/preflight_complete.20260423211653.25426' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260423211653.25426.
Thu Apr 23 17:16:53 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Apr 23 17:16:53 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [1b731dc7-8d26-42da-bc56-5996c3af4b6c;1800]
Thu Apr 23 17:16:53 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu Apr 23 17:16:54 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu Apr 23 17:16:54 -04 2026 [elapsed=1 sec] auxcam is disabled.
Thu Apr 23 17:16:54 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Apr 23 17:16:54 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1776979012
OK
Thu Apr 23 17:16:54 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Apr 23 17:16:54 -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
Thu Apr 23 17:16:56 -04 2026 [elapsed=3 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
Thu Apr 23 17:16:57 -04 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Thu Apr 23 17:16:57 -04 2026 [elapsed=4 sec] CLOCKS
admin: Thu Apr 23 21:16:57 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 29 256 377 0.297 0.139 0.056
+10.0.11.4 .GPS. 1 u 168 256 377 0.441 0.244 0.065
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 160 512 377 223.149 -8.222 2.060
-185.125.190.58 99.220.8.133 2 u 352 512 377 224.472 -7.123 1.319
+alphyn.canonica 132.163.96.1 2 u 235 256 377 150.196 -5.325 1.807
-185.125.190.56 146.131.121.246 2 u 306 512 377 224.445 -7.916 1.309
Thu Apr 23 17:16:58 -04 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (3793GB)
200GB available in /atlas/red...OK (7534GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.6T 3.7T 65% /
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 20G 35G 37% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
archon:/dev/loop2 106M 106M 0 100% /snap/core/17292
proc1:/dev/md0p1 15T 6.5T 7.2T 48% /
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 630G 13T 5% /
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 902G 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 692G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Thu Apr 23 17:16:58 -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
Thu Apr 23 17:16:58 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Thu Apr 23 17:16:58 -04 2026 [elapsed=5 sec] Closing dome.
Thu Apr 23 17:17:49 -04 2026 [elapsed=56 sec] SERVICES2
Thu Apr 23 17:17:49 -04 2026 [elapsed=56 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Apr 23 17:17:54 -04 2026 [elapsed=61 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=1.6e+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
Thu Apr 23 17:21:12 -04 2026 [elapsed=259 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: 99.44 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Thu Apr 23 17:22:17 -04 2026 [elapsed=324 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Apr 23 17:22:42 -04 2026 [elapsed=349 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=10/0 spi=38.8 IDLE
Thu Apr 23 17:22:42 -04 2026 [elapsed=349 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 (-53.9C)
Checking CCD plane: Z0=-197.00 DZDX=+457.00 DZDY=-419.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=10 IDLE
Thu Apr 23 17:22:42 -04 2026 [elapsed=349 sec] WEATHER
status weather: C 23.9C 21% 10/14kph@298 DP23.2C/-29C/d IDLE
...OK
Thu Apr 23 17:22:42 -04 2026 [elapsed=349 sec] MET
status...OK
met: c=N o=Y Ro9d Co2d Wo18d Ho18d To18d Do18d IDLE
Thu Apr 23 17:22:42 -04 2026 [elapsed=349 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Apr 23 17:22:43 -04 2026 [elapsed=350 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 128.12 -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 1 0.0mm 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 -1 -0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 8 0.1%
A 0.051s 104 1.1%
A 0.081s 383 4.2%
A 0.111s 728 8.0%
A 0.142s 1209 13.2%
A 0.172s 1779 19.4%
A 0.202s 2467 26.9%
A 0.233s 3255 35.6%
A 0.263s 4164 45.5%
A 0.293s 5114 55.9%
A 0.324s 5984 65.4%
A 0.354s 6782 74.1%
A 0.384s 7429 81.2%
A 0.415s 8008 87.5%
A 0.445s 8456 92.4%
A 0.475s 8795 96.1%
A 0.506s 9029 98.6%
A 0.536s 9142 99.9%
A 0.566s 9157 100.0%
B 0.020s 1 0.0%
B 0.051s 85 0.9%
B 0.081s 366 4.0%
B 0.111s 724 7.9%
B 0.142s 1193 13.0%
B 0.172s 1782 19.5%
B 0.203s 2471 27.0%
B 0.233s 3255 35.6%
B 0.263s 4170 45.6%
B 0.294s 5115 55.9%
B 0.324s 5995 65.5%
B 0.354s 6782 74.1%
B 0.385s 7432 81.2%
B 0.415s 8009 87.5%
B 0.445s 8472 92.5%
B 0.476s 8801 96.1%
B 0.506s 9037 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9054 98.9%
A 0.081s 8771 95.8%
A 0.111s 8428 92.1%
A 0.141s 7966 87.0%
A 0.172s 7370 80.5%
A 0.202s 6691 73.1%
A 0.232s 5897 64.4%
A 0.263s 4975 54.3%
A 0.293s 4054 44.3%
A 0.323s 3138 34.3%
A 0.354s 2360 25.8%
A 0.384s 1694 18.5%
A 0.415s 1121 12.2%
A 0.445s 692 7.6%
A 0.475s 346 3.8%
A 0.506s 124 1.4%
A 0.536s 10 0.1%
A 0.567s -5 0.0%
B 0.020s 9147 99.9%
B 0.051s 9038 98.7%
B 0.081s 8759 95.7%
B 0.111s 8402 91.8%
B 0.142s 7941 86.7%
B 0.172s 7356 80.4%
B 0.203s 6662 72.8%
B 0.233s 5871 64.1%
B 0.264s 4928 53.8%
B 0.294s 3974 43.4%
B 0.325s 3113 34.0%
B 0.355s 2327 25.4%
B 0.385s 1678 18.3%
B 0.416s 1116 12.2%
B 0.446s 661 7.2%
B 0.476s 342 3.7%
B 0.507s 114 1.2%
B 0.537s 2 0.0%
A 0 0.0mm 15 N F R | B -1 -0.0mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.566 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.567 seconds.
Shutter B closed to 0.0 percent in 0.537 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 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=o[3] foc=9887 IDLE
Thu Apr 23 17:23:18 -04 2026 [elapsed=385 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=10/0 spi=38.8 IDLE
taking preflight exposures:
acam...OK
acam image:
160M Apr 23 17:23 /atlas/obs/04a/61154/04a61154e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Apr 23 17:23:41 -04 2026 [elapsed=408 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (35 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Apr 23 17:23:41 -04 2026 [elapsed=408 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61153.89145417|info|galildriver|using focus model: foc=9830+(3.50)*22.4+(-0.35)*60.2=9887.3
61153.89145885|info|galildriver|o 3 IN | cass: 6105468 30.53 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53273388 9887 um b=0f [cmd]
bestfocus for o...OK
Thu Apr 23 17:23:43 -04 2026 [elapsed=410 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Apr 23 17:24:16 -04 2026 [elapsed=443 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.
Thu Apr 23 17:24:17 -04 2026 [elapsed=444 sec] Happy observing!
Thu Apr 23 17:24:17 -04 2026 [elapsed=444 sec] Preflight took 444 seconds to complete.
Thu Apr 23 17:24:17 -04 2026 [elapsed=444 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 0.050s 108 1.2% A 0.081s 375 4.1% A 0.111s 724 7.9% A 0.141s 1180 12.9% A 0.171s 1762 19.2% A 0.202s 2442 26.7% A 0.232s 3239 35.4% A 0.262s 4143 45.3% A 0.292s 5074 55.4% A 0.322s 5941 64.9% A 0.353s 6730 73.5% A 0.383s 7393 80.8% A 0.413s 7971 87.1% A 0.443s 8431 92.1% A 0.473s 8772 95.8% A 0.504s 9016 98.5% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 110 1.2% B 0.081s 380 4.2% B 0.111s 729 8.0% B 0.141s 1201 13.1% B 0.171s 1775 19.4% B 0.202s 2467 26.9% B 0.232s 3269 35.7% B 0.262s 4165 45.5% B 0.292s 5103 55.7% B 0.323s 5990 65.4% B 0.353s 6772 74.0% B 0.383s 7437 81.2% B 0.413s 8001 87.4% B 0.444s 8454 92.4% B 0.474s 8794 96.1% B 0.504s 9023 98.6% B 0.534s 9139 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9051 98.9% A 0.081s 8777 95.9% A 0.111s 8420 92.0% A 0.141s 7958 86.9% A 0.171s 7400 80.8% A 0.201s 6715 73.4% A 0.232s 5921 64.7% A 0.262s 5014 54.8% A 0.292s 4068 44.4% A 0.322s 3192 34.9% A 0.352s 2410 26.3% A 0.383s 1730 18.9% A 0.413s 1164 12.7% A 0.443s 707 7.7% A 0.473s 367 4.0% A 0.504s 131 1.4% A 0.534s 16 0.2% A 0.564s 2 0.0% B 0.020s 9146 99.9% B 0.050s 9025 98.6% B 0.081s 8781 95.9% B 0.111s 8435 92.1% B 0.141s 7967 87.0% B 0.171s 7397 80.8% B 0.202s 6713 73.3% B 0.232s 5920 64.7% B 0.262s 5012 54.8% B 0.292s 4082 44.6% B 0.322s 3191 34.9% B 0.353s 2414 26.4% B 0.383s 1725 18.8% B 0.413s 1165 12.7% B 0.443s 713 7.8% B 0.473s 367 4.0% B 0.504s 145 1.6% B 0.534s 18 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R