CHL Preflight Night 61221
Executing preflight for 61221 at Mon Jun 29 16:55:04 -04 2026.
Log can be found in /atlas/obs/04/61221/preflight.dat.
Setting donefile '/atlas/obs/04/61221/preflight_complete.20260629205504.26494' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260629205504.26494.
Mon Jun 29 16:55:04 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Jun 29 16:55:04 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [e69af860-5df6-4694-8e96-326b38783289;1800]
Mon Jun 29 16:55:04 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Mon Jun 29 16:55:05 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Mon Jun 29 16:55:05 -04 2026 [elapsed=1 sec] auxcam is disabled.
Mon Jun 29 16:55:05 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Jun 29 16:55:05 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1782766496
OK
Mon Jun 29 16:55:05 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Jun 29 16:55:05 -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
Mon Jun 29 16:55:06 -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
Mon Jun 29 16:55:07 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Jun 29 16:55:07 -04 2026 [elapsed=3 sec] CLOCKS
admin: Mon Jun 29 20:55:07 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 209 1024 377 0.280 0.337 0.652
+10.0.11.4 .GPS. 1 u 498 1024 377 0.659 0.509 3.642
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+alphyn.canonica 132.163.96.1 2 u 883 1024 377 138.541 -0.512 2.294
-185.125.190.56 99.220.8.133 2 u 395 1024 377 222.083 -6.861 24.413
-185.125.190.58 146.131.121.246 2 u 880 1024 377 226.679 -8.442 1.090
-185.125.190.57 99.220.8.133 2 u 647 1024 377 224.417 -8.505 1.342
Mon Jun 29 16:55:08 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (4357GB)
200GB available in /atlas/red...OK (8873GB)
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 5.2T 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
Mon Jun 29 16:55:08 -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
Mon Jun 29 16:55:08 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Mon Jun 29 16:55:08 -04 2026 [elapsed=4 sec] SERVICES2
Mon Jun 29 16:55:10 -04 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Jun 29 16:55:14 -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=1.57e+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
Mon Jun 29 16:58:33 -04 2026 [elapsed=209 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: 159.77 -27.58, az/alt=324.66 +86.49 idle(e) IDLE
Mon Jun 29 16:59:29 -04 2026 [elapsed=265 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Jun 29 16:59:51 -04 2026 [elapsed=287 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=981/0 spi=46.9 IDLE
Mon Jun 29 16:59:51 -04 2026 [elapsed=287 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 (-54.1C)
Checking CCD plane: Z0=-195.00 DZDX=+464.00 DZDY=-413.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=981 IDLE
Mon Jun 29 16:59:51 -04 2026 [elapsed=287 sec] WEATHER
status weather: clear 20.9C 8% 7/12kph@301 DP34.5C/9C/d IDLE
...OK
Mon Jun 29 16:59:52 -04 2026 [elapsed=288 sec] MET
status...OK
met: c=N o=Y Ro10d Co8d Wo10d Ho10d To10d Do8d IDLE
Mon Jun 29 16:59:52 -04 2026 [elapsed=288 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Jun 29 16:59:54 -04 2026 [elapsed=290 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 188.44 -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 4 0.0%
A 0.051s 113 1.2%
A 0.081s 377 4.1%
A 0.111s 716 7.8%
A 0.141s 1203 13.1%
A 0.172s 1752 19.1%
A 0.202s 2443 26.7%
A 0.232s 3241 35.4%
A 0.263s 4162 45.5%
A 0.293s 5107 55.8%
A 0.323s 5953 65.0%
A 0.353s 6760 73.8%
A 0.383s 7414 81.0%
A 0.414s 7993 87.3%
A 0.444s 8443 92.2%
A 0.474s 8783 95.9%
A 0.504s 9023 98.6%
A 0.535s 9137 99.8%
A 0.565s 9155 100.0%
B 0.020s 2 0.0%
B 0.050s 93 1.0%
B 0.081s 377 4.1%
B 0.111s 735 8.0%
B 0.141s 1193 13.0%
B 0.172s 1780 19.4%
B 0.202s 2468 27.0%
B 0.232s 3256 35.6%
B 0.263s 4172 45.6%
B 0.293s 5113 55.9%
B 0.324s 5995 65.5%
B 0.354s 6781 74.1%
B 0.384s 7430 81.2%
B 0.414s 8011 87.5%
B 0.445s 8459 92.4%
B 0.475s 8793 96.1%
B 0.505s 9031 98.7%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9063 99.0%
A 0.081s 8781 95.9%
A 0.111s 8440 92.2%
A 0.141s 7980 87.2%
A 0.172s 7394 80.8%
A 0.202s 6689 73.1%
A 0.232s 5921 64.7%
A 0.262s 5012 54.8%
A 0.293s 4055 44.3%
A 0.323s 3166 34.6%
A 0.353s 2378 26.0%
A 0.384s 1732 18.9%
A 0.414s 1139 12.4%
A 0.444s 703 7.7%
A 0.475s 356 3.9%
A 0.505s 129 1.4%
A 0.535s 13 0.1%
A 0.566s -2 0.0%
B 0.020s 9147 99.9%
B 0.051s 9037 98.7%
B 0.081s 8772 95.8%
B 0.111s 8416 91.9%
B 0.141s 7959 86.9%
B 0.172s 7356 80.4%
B 0.202s 6685 73.0%
B 0.232s 5871 64.1%
B 0.263s 4956 54.1%
B 0.293s 4005 43.8%
B 0.323s 3140 34.3%
B 0.354s 2349 25.7%
B 0.384s 1698 18.5%
B 0.414s 1132 12.4%
B 0.445s 674 7.4%
B 0.475s 352 3.8%
B 0.505s 120 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 0.565 seconds.
Shutter B opened to 99.9 percent in 0.535 seconds.
Shutter A closed to 0.0 percent in 0.566 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=1.24e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9883 IDLE
Mon Jun 29 17:00:28 -04 2026 [elapsed=324 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=981/0 spi=46.9 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Jun 29 17:00 /atlas/obs/04a/61221/04a61221e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Jun 29 17:00:50 -04 2026 [elapsed=346 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (18 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Jun 29 17:00:51 -04 2026 [elapsed=347 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61220.87559376|info|galildriver|using focus model: foc=9830+(3.50)*21.1+(-0.35)*60.2=9882.8
61220.87559844|info|galildriver|o 3 IN | cass: 6099882 30.50 mm b=23 move=NO | arm: 406814 473.60 mm b=03 move=OK | foc: 53274211 9883 um b=0f [cmd]
bestfocus for o...OK
Mon Jun 29 17:00:52 -04 2026 [elapsed=348 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Jun 29 17:01:21 -04 2026 [elapsed=377 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.
Mon Jun 29 17:01:22 -04 2026 [elapsed=378 sec] Happy observing!
Mon Jun 29 17:01:22 -04 2026 [elapsed=378 sec] Preflight took 378 seconds to complete.
Mon Jun 29 17:01:22 -04 2026 [elapsed=378 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 2 0.0% A 0.051s 107 1.2% A 0.081s 386 4.2% A 0.112s 736 8.0% A 0.142s 1197 13.1% A 0.173s 1783 19.5% A 0.203s 2489 27.2% A 0.234s 3295 36.0% A 0.264s 4205 45.9% A 0.295s 5134 56.1% A 0.326s 6053 66.1% A 0.356s 6819 74.5% A 0.386s 7474 81.6% A 0.417s 8038 87.8% A 0.447s 8481 92.6% A 0.477s 8813 96.3% A 0.508s 9037 98.7% A 0.538s 9141 99.9% A 0.568s 9154 100.0% B 0.020s 1 0.0% B 0.051s 103 1.1% B 0.081s 380 4.2% B 0.112s 727 7.9% B 0.142s 1202 13.1% B 0.173s 1772 19.4% B 0.203s 2466 26.9% B 0.233s 3270 35.7% B 0.264s 4168 45.5% B 0.294s 5132 56.1% B 0.325s 6016 65.7% B 0.355s 6794 74.2% B 0.386s 7461 81.5% B 0.416s 8033 87.8% B 0.447s 8481 92.6% B 0.477s 8814 96.3% B 0.508s 9038 98.7% B 0.539s 9144 99.9% B 0.569s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8408 91.9% A 0.142s 7942 86.8% A 0.172s 7360 80.4% A 0.203s 6669 72.9% A 0.233s 5867 64.1% A 0.264s 4950 54.1% A 0.294s 3979 43.5% A 0.325s 3113 34.0% A 0.355s 2339 25.6% A 0.385s 1671 18.3% A 0.416s 1114 12.2% A 0.446s 668 7.3% A 0.477s 331 3.6% A 0.507s 110 1.2% A 0.538s 9 0.1% B 0.020s 9143 99.9% B 0.051s 9010 98.4% B 0.081s 8763 95.7% B 0.111s 8407 91.8% B 0.142s 7937 86.7% B 0.172s 7358 80.4% B 0.203s 6643 72.6% B 0.233s 5835 63.7% B 0.263s 4918 53.7% B 0.294s 3995 43.6% B 0.324s 3111 34.0% B 0.354s 2348 25.6% B 0.385s 1662 18.2% B 0.415s 1115 12.2% B 0.446s 675 7.4% B 0.476s 329 3.6% B 0.507s 117 1.3% B 0.538s 8 0.1% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R