CHL Preflight Night 61220
Executing preflight for 61220 at Sun Jun 28 16:54:35 -04 2026.
Log can be found in /atlas/obs/04/61220/preflight.dat.
Setting donefile '/atlas/obs/04/61220/preflight_complete.20260628205435.3523' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260628205435.3523.
Sun Jun 28 16:54:35 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Jun 28 16:54:35 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [ea4fef5f-c465-45b9-bd46-8c0c956013f5;1800]
Sun Jun 28 16:54:35 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sun Jun 28 16:54:36 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sun Jun 28 16:54:36 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sun Jun 28 16:54:36 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun Jun 28 16:54:36 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1782680069
OK
Sun Jun 28 16:54:36 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun Jun 28 16:54:36 -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
Sun Jun 28 16:54:38 -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
Sun Jun 28 16:54:38 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sun Jun 28 16:54:38 -04 2026 [elapsed=3 sec] CLOCKS
admin: Sun Jun 28 20:54:38 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 379 1024 377 0.338 1.299 1.147
+10.0.11.4 .GPS. 1 u 624 1024 377 0.486 1.407 1.133
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+alphyn.canonica 132.163.96.1 2 u 188 1024 377 147.663 -4.164 2.051
-185.125.190.56 99.220.8.133 2 u 714 1024 377 224.221 -6.953 1.456
-185.125.190.58 146.131.121.246 2 u 801 1024 377 228.050 -7.498 1.209
-185.125.190.57 99.220.8.133 2 u 11 1024 377 225.205 -7.754 0.909
Sun Jun 28 16:54:40 -04 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (4354GB)
200GB available in /atlas/red...OK (8647GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.1T 4.2T 60% /
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 5.4T 8.3T 40% /
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 471G 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
Sun Jun 28 16:54:40 -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
Sun Jun 28 16:54:40 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Sun Jun 28 16:54:40 -04 2026 [elapsed=5 sec] Closing dome.
Sun Jun 28 16:55:31 -04 2026 [elapsed=56 sec] SERVICES2
Sun Jun 28 16:55:32 -04 2026 [elapsed=57 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Jun 28 16:55:36 -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= 912kB time=00:00:29.18 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
Sun Jun 28 16:58:52 -04 2026 [elapsed=257 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: 158.87 -27.58, az/alt=324.66 +86.49 idle(e) IDLE
Sun Jun 28 16:59:49 -04 2026 [elapsed=314 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Jun 28 17:00:11 -04 2026 [elapsed=336 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=1096/0 spi=38.6 IDLE
Sun Jun 28 17:00:11 -04 2026 [elapsed=336 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 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=+464.00 DZDY=-412.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=1096 IDLE
Sun Jun 28 17:00:11 -04 2026 [elapsed=336 sec] WEATHER
status weather: clear 22.3C 5% 9/11kph@301 DP37.3C/-63C/d IDLE
...OK
Sun Jun 28 17:00:12 -04 2026 [elapsed=337 sec] MET
status...OK
met: c=N o=Y Ro9d Co7d Wo9d Ho9d To9d Do7d IDLE
Sun Jun 28 17:00:12 -04 2026 [elapsed=337 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Jun 28 17:00:12 -04 2026 [elapsed=337 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 187.54 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 7 0.1%
A 0.051s 119 1.3%
A 0.081s 394 4.3%
A 0.112s 740 8.1%
A 0.142s 1224 13.4%
A 0.172s 1799 19.7%
A 0.203s 2493 27.2%
A 0.233s 3287 35.9%
A 0.263s 4194 45.8%
A 0.294s 5140 56.2%
A 0.324s 6042 66.0%
A 0.355s 6828 74.6%
A 0.385s 7468 81.6%
A 0.415s 8041 87.8%
A 0.446s 8480 92.6%
A 0.476s 8811 96.3%
A 0.506s 9042 98.8%
A 0.536s 9142 99.9%
A 0.567s 9154 100.0%
B 0.020s 1 0.0%
B 0.050s 94 1.0%
B 0.081s 375 4.1%
B 0.111s 749 8.2%
B 0.141s 1211 13.2%
B 0.172s 1781 19.5%
B 0.202s 2494 27.2%
B 0.232s 3257 35.6%
B 0.262s 4170 45.6%
B 0.292s 5113 55.9%
B 0.323s 5997 65.5%
B 0.353s 6779 74.1%
B 0.383s 7432 81.2%
B 0.414s 8011 87.5%
B 0.444s 8458 92.4%
B 0.474s 8793 96.1%
B 0.504s 9031 98.7%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9054 98.9%
A 0.081s 8771 95.8%
A 0.111s 8430 92.1%
A 0.141s 7967 87.0%
A 0.172s 7367 80.5%
A 0.202s 6692 73.1%
A 0.232s 5896 64.4%
A 0.263s 4974 54.3%
A 0.293s 4055 44.3%
A 0.323s 3165 34.6%
A 0.353s 2382 26.0%
A 0.384s 1713 18.7%
A 0.414s 1135 12.4%
A 0.444s 705 7.7%
A 0.475s 355 3.9%
A 0.505s 130 1.4%
A 0.535s 13 0.1%
A 0.565s -4 0.0%
B 0.020s 9148 99.9%
B 0.050s 9037 98.7%
B 0.081s 8772 95.8%
B 0.111s 8404 91.8%
B 0.141s 7959 86.9%
B 0.172s 7358 80.4%
B 0.202s 6663 72.8%
B 0.232s 5871 64.1%
B 0.263s 4959 54.2%
B 0.293s 4005 43.8%
B 0.323s 3142 34.3%
B 0.354s 2351 25.7%
B 0.384s 1698 18.5%
B 0.414s 1135 12.4%
B 0.445s 674 7.4%
B 0.475s 352 3.8%
B 0.505s 121 1.3%
B 0.536s 5 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 99.9 percent in 0.535 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=1.21e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9884 IDLE
Sun Jun 28 17:00:48 -04 2026 [elapsed=373 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=1096/0 spi=38.6 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Jun 28 17:01 /atlas/obs/04a/61220/04a61220e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Jun 28 17:01:11 -04 2026 [elapsed=396 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (39 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Jun 28 17:01:11 -04 2026 [elapsed=396 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61219.87582911|info|galildriver|using focus model: foc=9830+(3.50)*21.8+(-0.35)*60.3=9885.2
61219.87583378|info|galildriver|o 3 IN | cass: 6099468 30.50 mm b=23 move=NO | arm: 406814 473.60 mm b=03 move=OK | foc: 53273920 9885 um b=0f [cmd]
bestfocus for o...OK
Sun Jun 28 17:01:13 -04 2026 [elapsed=398 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Jun 28 17:01:41 -04 2026 [elapsed=426 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.
Sun Jun 28 17:01:42 -04 2026 [elapsed=427 sec] Happy observing!
Sun Jun 28 17:01:42 -04 2026 [elapsed=427 sec] Preflight took 427 seconds to complete.
Sun Jun 28 17:01:42 -04 2026 [elapsed=427 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 385 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1783 19.5% A 0.202s 2466 26.9% A 0.232s 3267 35.7% A 0.262s 4174 45.6% A 0.293s 5104 55.8% A 0.323s 5998 65.5% A 0.353s 6775 74.0% A 0.383s 7433 81.2% A 0.414s 8007 87.5% A 0.444s 8456 92.4% A 0.474s 8792 96.0% A 0.504s 9027 98.6% A 0.535s 9137 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 113 1.2% B 0.081s 380 4.2% B 0.111s 728 8.0% B 0.141s 1201 13.1% B 0.171s 1773 19.4% B 0.202s 2464 26.9% B 0.232s 3269 35.7% B 0.262s 4170 45.6% B 0.292s 5102 55.7% B 0.323s 5988 65.4% B 0.353s 6770 74.0% B 0.383s 7441 81.3% B 0.413s 8003 87.4% B 0.443s 8456 92.4% B 0.474s 8795 96.1% B 0.504s 9022 98.6% B 0.534s 9139 99.8% B 0.564s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9048 98.8% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.171s 7381 80.6% A 0.202s 6691 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1710 18.7% A 0.414s 1148 12.5% A 0.444s 694 7.6% A 0.474s 358 3.9% A 0.505s 125 1.4% A 0.535s 14 0.2% A 0.565s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9019 98.5% B 0.081s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.172s 7378 80.6% B 0.202s 6689 73.1% B 0.232s 5891 64.4% B 0.262s 4981 54.4% B 0.293s 4055 44.3% B 0.323s 3163 34.6% B 0.353s 2392 26.1% B 0.383s 1703 18.6% B 0.414s 1147 12.5% B 0.444s 700 7.6% B 0.474s 357 3.9% B 0.504s 132 1.4% B 0.535s 15 0.2% B 0.565s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R