CHL Preflight Night 61219
Executing preflight for 61219 at Sat Jun 27 16:54:19 -04 2026.
Log can be found in /atlas/obs/04/61219/preflight.dat.
Setting donefile '/atlas/obs/04/61219/preflight_complete.20260627205419.3523' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260627205419.3523.
Sat Jun 27 16:54:19 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Jun 27 16:54:19 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [cdfb7222-e5a2-4d3b-8f63-80c1bacb3450;1800]
Sat Jun 27 16:54:19 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sat Jun 27 16:54:20 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sat Jun 27 16:54:20 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sat Jun 27 16:54:20 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Jun 27 16:54:20 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1782593651
OK
Sat Jun 27 16:54:20 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Jun 27 16:54:20 -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
Sat Jun 27 16:54:22 -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
Sat Jun 27 16:54:22 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Jun 27 16:54:22 -04 2026 [elapsed=3 sec] CLOCKS
admin: Sat Jun 27 20:54:22 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 571 1024 377 0.313 0.269 0.204
+10.0.11.4 .GPS. 1 u 535 1024 377 1.491 -0.009 0.241
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+alphyn.canonica 132.163.96.1 2 u 298 1024 377 149.135 -5.748 0.664
-185.125.190.56 99.220.8.133 2 u 1013 1024 377 224.309 -7.844 0.797
-185.125.190.58 146.131.121.246 2 u 943 1024 377 226.978 -7.470 1.500
-185.125.190.57 99.220.8.133 2 u 84 1024 377 226.772 -9.838 0.695
Sat Jun 27 16:54:24 -04 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (4427GB)
200GB available in /atlas/red...OK (8652GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.0T 4.3T 59% /
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 472G 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
Sat Jun 27 16:54:24 -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
Sat Jun 27 16:54:25 -04 2026 [elapsed=6 sec] Disabling mount tracking.
Sat Jun 27 16:54:25 -04 2026 [elapsed=6 sec] Closing dome.
Sat Jun 27 16:55:16 -04 2026 [elapsed=57 sec] SERVICES2
Sat Jun 27 16:55:16 -04 2026 [elapsed=57 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Jun 27 16:55:20 -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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.56e+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
Sat Jun 27 16:58:42 -04 2026 [elapsed=263 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: 157.84 -27.58, az/alt=324.64 +86.48 idle(e) IDLE
Sat Jun 27 16:59:39 -04 2026 [elapsed=320 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Jun 27 17:00:01 -04 2026 [elapsed=342 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.7 IDLE
Sat Jun 27 17:00:01 -04 2026 [elapsed=342 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 (-54.3C)
Checking CCD plane: Z0=-195.00 DZDX=+457.00 DZDY=-416.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Jun 27 17:00:01 -04 2026 [elapsed=342 sec] WEATHER
status weather: clear 18.7C 8% 8/18kph@283 DP35.0C/-9C/d IDLE
...OK
Sat Jun 27 17:00:02 -04 2026 [elapsed=343 sec] MET
status...OK
met: c=N o=Y Ro8d Co6d Wo8d Ho8d To8d Do6d IDLE
Sat Jun 27 17:00:02 -04 2026 [elapsed=343 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Jun 27 17:00:02 -04 2026 [elapsed=343 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 186.51 -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 9 0.1%
A 0.051s 117 1.3%
A 0.081s 391 4.3%
A 0.111s 739 8.1%
A 0.141s 1226 13.4%
A 0.172s 1798 19.6%
A 0.202s 2488 27.2%
A 0.232s 3279 35.8%
A 0.263s 4203 45.9%
A 0.293s 5145 56.2%
A 0.323s 6008 65.6%
A 0.354s 6805 74.3%
A 0.384s 7449 81.4%
A 0.415s 8027 87.7%
A 0.445s 8471 92.5%
A 0.475s 8804 96.2%
A 0.506s 9036 98.7%
A 0.536s 9144 99.9%
A 0.566s 9155 100.0%
B 0.020s 1 0.0%
B 0.051s 90 1.0%
B 0.081s 374 4.1%
B 0.111s 735 8.0%
B 0.142s 1192 13.0%
B 0.172s 1780 19.4%
B 0.202s 2469 27.0%
B 0.232s 3255 35.6%
B 0.263s 4169 45.5%
B 0.293s 5112 55.8%
B 0.323s 5996 65.5%
B 0.353s 6779 74.1%
B 0.384s 7450 81.4%
B 0.414s 8027 87.7%
B 0.444s 8471 92.5%
B 0.475s 8792 96.0%
B 0.505s 9036 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9054 98.9%
A 0.081s 8772 95.8%
A 0.111s 8429 92.1%
A 0.142s 7966 87.0%
A 0.172s 7367 80.5%
A 0.202s 6692 73.1%
A 0.232s 5896 64.4%
A 0.263s 4979 54.4%
A 0.293s 4053 44.3%
A 0.323s 3162 34.5%
A 0.354s 2385 26.1%
A 0.384s 1711 18.7%
A 0.414s 1123 12.3%
A 0.445s 692 7.6%
A 0.475s 345 3.8%
A 0.505s 126 1.4%
A 0.536s 9 0.1%
B 0.020s 9149 99.9%
B 0.051s 9038 98.7%
B 0.081s 8772 95.8%
B 0.111s 8418 92.0%
B 0.141s 7960 87.0%
B 0.172s 7378 80.6%
B 0.202s 6688 73.1%
B 0.232s 5897 64.4%
B 0.263s 4988 54.5%
B 0.293s 4035 44.1%
B 0.323s 3169 34.6%
B 0.353s 2373 25.9%
B 0.384s 1717 18.8%
B 0.414s 1151 12.6%
B 0.444s 686 7.5%
B 0.474s 360 3.9%
B 0.505s 127 1.4%
B 0.535s 6 0.1%
A 0 0.0mm 15 N F R | B -2 -0.1mm 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 0.535 seconds.
Shutter A closed to 0.1 percent in 0.536 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=1.15e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9876 IDLE
Sat Jun 27 17:00:38 -04 2026 [elapsed=379 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.7 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Jun 27 17:00 /atlas/obs/04a/61219/04a61219e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Jun 27 17:01:01 -04 2026 [elapsed=402 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (29 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Jun 27 17:01:01 -04 2026 [elapsed=402 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61218.87571344|info|galildriver|using focus model: foc=9830+(3.50)*19.4+(-0.35)*60.3=9876.8
61218.87571811|info|galildriver|o 3 IN | cass: 6100680 30.50 mm b=23 move=NO | arm: 406814 473.60 mm b=03 move=OK | foc: 53275516 9877 um b=0f [cmd]
bestfocus for o...OK
Sat Jun 27 17:01:03 -04 2026 [elapsed=404 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Jun 27 17:01:32 -04 2026 [elapsed=433 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.
Sat Jun 27 17:01:33 -04 2026 [elapsed=434 sec] Happy observing!
Sat Jun 27 17:01:33 -04 2026 [elapsed=434 sec] Preflight took 434 seconds to complete.
Sat Jun 27 17:01:33 -04 2026 [elapsed=434 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