CHL Preflight Night 61204
Executing preflight for 61204 at Fri Jun 12 20:42:41 -04 2026.
Log can be found in /atlas/obs/04/61204/preflight.dat.
Setting donefile '/atlas/obs/04/61204/preflight_complete.20260613004241.30351' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260613004241.30351.
Fri Jun 12 20:42:41 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Jun 12 20:42:41 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [3322a86c-d3c0-4429-b5ff-9f270c965563;1800]
Fri Jun 12 20:42:41 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Fri Jun 12 20:42:42 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Fri Jun 12 20:42:42 -04 2026 [elapsed=1 sec] auxcam is disabled.
Fri Jun 12 20:42:42 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Jun 12 20:42:42 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1781311354
OK
Fri Jun 12 20:42:42 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Jun 12 20:42:42 -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
Fri Jun 12 20:42:43 -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
Fri Jun 12 20:42:44 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Jun 12 20:42:44 -04 2026 [elapsed=3 sec] CLOCKS
admin: Sat Jun 13 00:42:44 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 67 1024 377 0.315 0.722 0.115
+10.0.11.4 .GPS. 1 u 676 1024 377 0.428 0.817 0.105
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+185.125.190.56 99.220.8.133 2 u 156 1024 377 219.237 -4.723 0.578
-185.125.190.58 146.131.121.246 2 u 61 1024 377 218.283 -4.199 0.958
-alphyn.canonica 132.163.96.1 2 u 817 1024 377 146.844 -3.837 0.953
-185.125.190.57 99.220.8.133 2 u 816 1024 377 217.355 -4.246 1.279
Fri Jun 12 20:42:45 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (4047GB)
200GB available in /atlas/red...OK (8334GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.4T 3.9T 63% /
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/17292
archon:/dev/loop1 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
proc1:/dev/md0p1 15T 5.7T 8.0T 42% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc2:/dev/md0p1 15T 449G 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/17292
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17284
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
Fri Jun 12 20:42:45 -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
Fri Jun 12 20:42:45 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Fri Jun 12 20:42:45 -04 2026 [elapsed=4 sec] SERVICES2
Fri Jun 12 20:42:45 -04 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Jun 12 20:42:49 -04 2026 [elapsed=8 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=1.51e+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
Fri Jun 12 20:46:14 -04 2026 [elapsed=213 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: 200.12 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Fri Jun 12 20:47:19 -04 2026 [elapsed=278 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Jun 12 20:47:45 -04 2026 [elapsed=304 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=365/0 spi=43.4 IDLE
Fri Jun 12 20:47:45 -04 2026 [elapsed=304 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.4C)
Checking CCD plane: Z0=-193.00 DZDX=+468.00 DZDY=-415.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=365 IDLE
Fri Jun 12 20:47:45 -04 2026 [elapsed=304 sec] WEATHER
status weather: clear 17.8C 15% 2/3kph@323 DP26.6C/19C/d IDLE
...OK
Fri Jun 12 20:47:45 -04 2026 [elapsed=304 sec] MET
status...OK
met: c=N o=Y Ro1d Co1h Wo10d Ho10d To10d Do10d IDLE
Fri Jun 12 20:47:45 -04 2026 [elapsed=304 sec] SENTRY
status...OK
sentry: close=NO open=YES drop=YES IDLE
Fri Jun 12 20:47:45 -04 2026 [elapsed=304 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 228.80 -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 3 0.0%
B 0.020s -2 0.0%
A 2 0.1mm 15 N F R | B 0 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 6 0.1%
A 0.051s 104 1.1%
A 0.081s 378 4.1%
A 0.111s 718 7.8%
A 0.141s 1186 13.0%
A 0.172s 1753 19.2%
A 0.202s 2439 26.6%
A 0.232s 3238 35.4%
A 0.263s 4132 45.1%
A 0.293s 5083 55.5%
A 0.323s 5955 65.1%
A 0.353s 6755 73.8%
A 0.384s 7413 81.0%
A 0.414s 7994 87.3%
A 0.444s 8458 92.4%
A 0.475s 8796 96.1%
A 0.505s 9030 98.6%
A 0.535s 9140 99.8%
A 0.566s 9157 100.0%
B 0.020s 1 0.0%
B 0.050s 90 1.0%
B 0.081s 376 4.1%
B 0.111s 735 8.0%
B 0.141s 1209 13.2%
B 0.172s 1781 19.5%
B 0.202s 2470 27.0%
B 0.232s 3258 35.6%
B 0.263s 4201 45.9%
B 0.293s 5143 56.2%
B 0.323s 6023 65.8%
B 0.354s 6804 74.3%
B 0.384s 7452 81.4%
B 0.414s 8027 87.7%
B 0.444s 8472 92.5%
B 0.475s 8802 96.2%
B 0.505s 9036 98.7%
B 0.536s 9149 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9048 98.8%
A 0.081s 8761 95.7%
A 0.111s 8414 91.9%
A 0.141s 7945 86.8%
A 0.172s 7352 80.3%
A 0.202s 6667 72.8%
A 0.232s 5870 64.1%
A 0.263s 4952 54.1%
A 0.293s 4023 43.9%
A 0.323s 3135 34.2%
A 0.354s 2359 25.8%
A 0.384s 1693 18.5%
A 0.415s 1123 12.3%
A 0.445s 678 7.4%
A 0.475s 337 3.7%
A 0.505s 123 1.3%
A 0.536s 9 0.1%
B 0.020s 9148 99.9%
B 0.050s 9033 98.7%
B 0.081s 8762 95.7%
B 0.111s 8403 91.8%
B 0.141s 7944 86.8%
B 0.171s 7357 80.4%
B 0.202s 6662 72.8%
B 0.232s 5873 64.2%
B 0.262s 4959 54.2%
B 0.293s 4007 43.8%
B 0.323s 3141 34.3%
B 0.353s 2349 25.7%
B 0.383s 1698 18.5%
B 0.414s 1135 12.4%
B 0.444s 673 7.4%
B 0.474s 359 3.9%
B 0.504s 121 1.3%
B 0.535s 5 0.1%
A 0 0.0mm 15 N F R | B -3 -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 0.536 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=1.21e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9872 IDLE
Fri Jun 12 20:48:21 -04 2026 [elapsed=340 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=365/0 spi=43.4 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Jun 12 20:48 /atlas/obs/04a/61204/04a61204e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Jun 12 20:48:43 -04 2026 [elapsed=362 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (76 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Jun 12 20:48:43 -04 2026 [elapsed=362 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61204.03384154|info|galildriver|using focus model: foc=9830+(3.50)*18.3+(-0.35)*60.2=9873.0
61204.03384621|info|galildriver|o 3 IN | cass: 6103473 30.52 mm b=23 move=NO | arm: 409735 477.00 mm b=23 move=OK | foc: 53276367 9872 um b=0f [cmd]
bestfocus for o...OK
Fri Jun 12 20:48:45 -04 2026 [elapsed=364 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Jun 12 20:49:18 -04 2026 [elapsed=397 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.
Fri Jun 12 20:49:19 -04 2026 [elapsed=398 sec] Happy observing!
Fri Jun 12 20:49:19 -04 2026 [elapsed=398 sec] Preflight took 398 seconds to complete.
Fri Jun 12 20:49:19 -04 2026 [elapsed=398 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 113 1.2% A 0.081s 386 4.2% A 0.111s 736 8.0% A 0.141s 1196 13.1% A 0.171s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.322s 5997 65.5% A 0.353s 6776 74.0% A 0.383s 7433 81.2% A 0.413s 7990 87.3% A 0.443s 8444 92.2% A 0.473s 8783 95.9% A 0.504s 9022 98.6% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s -1 -0.0% B 0.050s 105 1.1% B 0.081s 369 4.0% B 0.111s 713 7.8% B 0.141s 1186 13.0% B 0.172s 1751 19.1% B 0.202s 2441 26.7% B 0.232s 3239 35.4% B 0.262s 4136 45.2% B 0.293s 5074 55.4% B 0.323s 5960 65.1% B 0.353s 6747 73.7% B 0.383s 7419 81.0% B 0.414s 7986 87.2% B 0.444s 8444 92.2% B 0.474s 8787 96.0% B 0.504s 9017 98.5% B 0.535s 9136 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9149 99.9% A 0.051s 9051 98.9% A 0.081s 8782 95.9% A 0.111s 8430 92.1% A 0.141s 7970 87.1% A 0.171s 7396 80.8% A 0.202s 6712 73.3% A 0.232s 5919 64.7% A 0.262s 5008 54.7% A 0.292s 4064 44.4% A 0.323s 3189 34.8% A 0.353s 2407 26.3% A 0.383s 1733 18.9% A 0.413s 1163 12.7% A 0.444s 706 7.7% A 0.474s 367 4.0% A 0.504s 131 1.4% A 0.535s 16 0.2% A 0.565s 1 0.0% B 0.020s 9146 99.9% B 0.050s 9024 98.6% B 0.081s 8780 95.9% B 0.111s 8434 92.1% B 0.141s 7969 87.1% 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 4083 44.6% B 0.323s 3189 34.8% B 0.353s 2416 26.4% B 0.383s 1726 18.9% B 0.413s 1163 12.7% B 0.443s 712 7.8% B 0.474s 366 4.0% B 0.504s 138 1.5% B 0.534s 18 0.2% B 0.564s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R