CHL Preflight Night 61231
Executing preflight for 61231 at Thu Jul 9 19:20:44 -04 2026.
Log can be found in /atlas/obs/04/61231/preflight.dat.
Setting donefile '/atlas/obs/04/61231/preflight_complete.20260709232044.6534' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260709232044.6534.
Thu Jul 9 19:20:44 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Jul 9 19:20:44 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [237ff917-57c8-4ea6-aa85-30c0c3254ef6;1800]
Thu Jul 9 19:20:44 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu Jul 9 19:20:45 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu Jul 9 19:20:45 -04 2026 [elapsed=1 sec] auxcam is disabled.
Thu Jul 9 19:20:45 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Jul 9 19:20:45 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1783639237
OK
Thu Jul 9 19:20:45 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Jul 9 19:20:45 -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 Jul 9 19:20:47 -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 Jul 9 19:20:47 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Jul 9 19:20:47 -04 2026 [elapsed=3 sec] CLOCKS
admin: Thu Jul 9 23:20:47 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 876 1024 377 0.315 -1.069 0.846
*10.0.11.4 .GPS. 1 u 869 1024 377 0.577 -0.810 0.747
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-alphyn.canonica 132.163.96.1 2 u 611 1024 377 149.236 -7.034 1.641
-185.125.190.56 99.220.8.133 2 u 581 1024 377 216.790 -5.821 2.625
+185.125.190.58 99.220.8.133 2 u 781 1024 377 214.386 -4.864 3.635
-185.125.190.57 99.220.8.133 2 u 62 1024 377 225.943 -10.151 1.136
Thu Jul 9 19:20:49 -04 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (4602GB)
200GB available in /atlas/red...OK (8905GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.9T 4.4T 57% /
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 8.5T 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 451G 13T 4% /
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
Thu Jul 9 19:20:49 -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 Jul 9 19:20:50 -04 2026 [elapsed=6 sec] Disabling mount tracking.
Thu Jul 9 19:20:50 -04 2026 [elapsed=6 sec] SERVICES2
Thu Jul 9 19:20:50 -04 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Jul 9 19:20:54 -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=1.55e+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
Thu Jul 9 19:24:11 -04 2026 [elapsed=207 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: 206.14 -27.58, az/alt=324.66 +86.49 idle(e) IDLE
Thu Jul 9 19:25:08 -04 2026 [elapsed=264 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Jul 9 19:25:30 -04 2026 [elapsed=286 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=393.5 IDLE
Thu Jul 9 19:25:30 -04 2026 [elapsed=286 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.0C)
Checking CCD plane: Z0=-196.00 DZDX=+457.00 DZDY=-415.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Jul 9 19:25:30 -04 2026 [elapsed=286 sec] WEATHER
status weather: C+ 19.8C 6% 3/3kph@354 DP36.4C/-19C/d IDLE
...OK
Thu Jul 9 19:25:31 -04 2026 [elapsed=287 sec] MET
status...OK
met: c=Y o=N Ro3d Cx33 Wo3d Ho3d To3d Do3d wait C IDLE
Thu Jul 9 19:25:31 -04 2026 [elapsed=287 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Jul 9 19:25:33 -04 2026 [elapsed=289 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 234.81 -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 -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 -1 -0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 10 0.1%
A 0.051s 113 1.2%
A 0.081s 400 4.4%
A 0.112s 742 8.1%
A 0.142s 1220 13.3%
A 0.172s 1797 19.6%
A 0.203s 2514 27.5%
A 0.233s 3315 36.2%
A 0.263s 4223 46.1%
A 0.294s 5171 56.5%
A 0.324s 6041 66.0%
A 0.354s 6825 74.6%
A 0.385s 7468 81.6%
A 0.415s 8044 87.9%
A 0.445s 8483 92.7%
A 0.476s 8813 96.3%
A 0.506s 9042 98.8%
A 0.537s 9142 99.9%
A 0.567s 9155 100.0%
B 0.020s 2 0.0%
B 0.051s 99 1.1%
B 0.081s 386 4.2%
B 0.111s 748 8.2%
B 0.142s 1211 13.2%
B 0.172s 1802 19.7%
B 0.202s 2493 27.2%
B 0.233s 3282 35.9%
B 0.263s 4235 46.3%
B 0.294s 5173 56.5%
B 0.324s 6052 66.1%
B 0.354s 6826 74.6%
B 0.385s 7470 81.6%
B 0.415s 8044 87.9%
B 0.446s 8482 92.7%
B 0.476s 8821 96.4%
B 0.506s 9048 98.8%
B 0.537s 9150 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9056 98.9%
A 0.081s 8771 95.8%
A 0.111s 8427 92.1%
A 0.142s 7957 86.9%
A 0.172s 7381 80.6%
A 0.202s 6692 73.1%
A 0.233s 5900 64.5%
A 0.263s 4982 54.4%
A 0.293s 4051 44.3%
A 0.324s 3167 34.6%
A 0.354s 2356 25.7%
A 0.385s 1693 18.5%
A 0.415s 1123 12.3%
A 0.445s 689 7.5%
A 0.476s 347 3.8%
A 0.506s 124 1.4%
A 0.537s 11 0.1%
A 0.567s -4 0.0%
B 0.020s 9148 99.9%
B 0.051s 9039 98.7%
B 0.081s 8771 95.8%
B 0.111s 8418 92.0%
B 0.142s 7960 87.0%
B 0.172s 7378 80.6%
B 0.202s 6687 73.1%
B 0.232s 5898 64.4%
B 0.263s 4989 54.5%
B 0.293s 4036 44.1%
B 0.323s 3168 34.6%
B 0.354s 2373 25.9%
B 0.384s 1718 18.8%
B 0.414s 1150 12.6%
B 0.444s 686 7.5%
B 0.474s 361 3.9%
B 0.505s 127 1.4%
B 0.535s 7 0.1%
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 0.567 seconds.
Shutter B opened to 100.0 percent in 0.537 seconds.
Shutter A closed to 0.0 percent in 0.567 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed= 613x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9885 IDLE
Thu Jul 9 19:26:08 -04 2026 [elapsed=324 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=393.5 IDLE
taking preflight exposures:
acam...OK
acam image:
156M Jul 9 19:26 /atlas/obs/04a/61231/04a61231e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Jul 9 19:26:30 -04 2026 [elapsed=346 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (28 seconds old)
OTA humidity level...OK (4%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Jul 9 19:26:30 -04 2026 [elapsed=346 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61230.97674770|info|galildriver|using focus model: foc=9830+(3.50)*20.4+(-0.35)*60.3=9880.3
61230.97675271|info|galildriver|o 3 IN | cass: 6099999 30.50 mm b=23 move=NO | arm: 406814 473.60 mm b=03 move=OK | foc: 53273659 9886 um b=8f M [focus]
61230.97676287|info|galildriver|o 3 IN | cass: 6100004 30.50 mm b=23 move=NO | arm: 406814 473.60 mm b=03 move=OK | foc: 53273998 9884 um b=0f [cmd]
bestfocus for o...OK
Thu Jul 9 19:26:33 -04 2026 [elapsed=349 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Jul 9 19:27:00 -04 2026 [elapsed=376 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 Jul 9 19:27:01 -04 2026 [elapsed=377 sec] Happy observing!
Thu Jul 9 19:27:01 -04 2026 [elapsed=377 sec] Preflight took 377 seconds to complete.
Thu Jul 9 19:27:01 -04 2026 [elapsed=377 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 4 0.0% A 0.050s 114 1.2% A 0.081s 386 4.2% A 0.111s 749 8.2% A 0.141s 1197 13.1% A 0.171s 1784 19.5% A 0.201s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5103 55.7% A 0.322s 5998 65.5% A 0.353s 6775 74.0% A 0.383s 7432 81.2% A 0.413s 8006 87.5% A 0.444s 8457 92.4% A 0.474s 8792 96.0% A 0.504s 9027 98.6% A 0.534s 9137 99.8% A 0.565s 9153 100.0% B 0.020s 0 0.0% B 0.050s 114 1.2% B 0.081s 379 4.1% B 0.111s 727 7.9% B 0.141s 1201 13.1% B 0.172s 1772 19.4% B 0.202s 2465 26.9% B 0.232s 3269 35.7% B 0.262s 4167 45.5% B 0.292s 5101 55.7% B 0.323s 5986 65.4% B 0.353s 6773 74.0% B 0.383s 7442 81.3% B 0.413s 8002 87.4% B 0.444s 8457 92.4% B 0.474s 8796 96.1% B 0.504s 9022 98.6% B 0.534s 9138 99.8% B 0.565s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9147 99.9% A 0.050s 9046 98.8% A 0.081s 8771 95.8% A 0.111s 8417 91.9% A 0.141s 7954 86.9% A 0.171s 7376 80.6% A 0.202s 6688 73.1% A 0.232s 5890 64.3% A 0.262s 4978 54.4% A 0.292s 4034 44.1% A 0.323s 3162 34.5% A 0.353s 2384 26.0% A 0.383s 1714 18.7% A 0.414s 1147 12.5% A 0.444s 693 7.6% A 0.474s 359 3.9% A 0.504s 125 1.4% A 0.534s 14 0.2% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9019 98.5% B 0.081s 8770 95.8% B 0.111s 8422 92.0% B 0.141s 7954 86.9% B 0.171s 7379 80.6% B 0.202s 6690 73.1% B 0.232s 5892 64.4% B 0.262s 4980 54.4% B 0.292s 4054 44.3% B 0.323s 3163 34.6% B 0.353s 2393 26.1% B 0.383s 1703 18.6% B 0.413s 1147 12.5% B 0.444s 701 7.7% B 0.474s 366 4.0% B 0.504s 133 1.5% B 0.534s 17 0.2% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R