CHL Preflight Night 61208
Executing preflight for 61208 at Tue Jun 16 17:50:26 -04 2026.
Log can be found in /atlas/obs/04/61208/preflight.dat.
Setting donefile '/atlas/obs/04/61208/preflight_complete.20260616215026.7520' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260616215026.7520.
Tue Jun 16 17:50:27 -04 2026 [elapsed=1 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Jun 16 17:50:27 -04 2026 [elapsed=1 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [73a4b7cb-3c5e-459b-af1c-4e6ba7081d5b;1800]
Tue Jun 16 17:50:30 -04 2026 [elapsed=4 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue Jun 16 17:50:30 -04 2026 [elapsed=4 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue Jun 16 17:50:30 -04 2026 [elapsed=4 sec] auxcam is disabled.
Tue Jun 16 17:50:30 -04 2026 [elapsed=4 sec] Skipping auxcam.
error: unknown module: vent
Tue Jun 16 17:50:30 -04 2026 [elapsed=4 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1781646630
OK
Tue Jun 16 17:50:30 -04 2026 [elapsed=4 sec] OPSEC
AUTO mode: ...OK
Tue Jun 16 17:50:30 -04 2026 [elapsed=4 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
Tue Jun 16 17:50:32 -04 2026 [elapsed=6 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
Tue Jun 16 17:50:32 -04 2026 [elapsed=6 sec] QUEUE
0 observations queued.
Tue Jun 16 17:50:32 -04 2026 [elapsed=6 sec] CLOCKS
admin: Tue Jun 16 21:50:32 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 899 1024 377 0.319 0.477 0.465
+10.0.11.4 .GPS. 1 u 2 1024 377 0.522 0.616 0.521
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-alphyn.canonica 132.163.96.1 2 u 1000 1024 377 145.201 -3.005 1.571
+185.125.190.56 99.220.8.133 2 u 770 1024 377 211.726 -0.751 1.304
-185.125.190.58 99.220.8.133 2 u 296 1024 377 221.347 -4.276 1.205
-185.125.190.57 99.220.8.133 2 u 408 1024 377 219.229 -5.127 1.415
Tue Jun 16 17:50:33 -04 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (4180GB)
200GB available in /atlas/red...OK (8611GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.3T 4.0T 61% /
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 5.5T 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 450G 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
Tue Jun 16 17:50:33 -04 2026 [elapsed=7 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
Tue Jun 16 17:50:33 -04 2026 [elapsed=7 sec] Disabling mount tracking.
Tue Jun 16 17:50:33 -04 2026 [elapsed=7 sec] SERVICES2
Tue Jun 16 17:50:34 -04 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Jun 16 17:50:38 -04 2026 [elapsed=12 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=1.63e+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
Tue Jun 16 17:54:14 -04 2026 [elapsed=228 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: 160.92 -27.58, az/alt=324.66 +86.49 idle(e) IDLE
Tue Jun 16 17:55:11 -04 2026 [elapsed=285 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Jun 16 17:55:33 -04 2026 [elapsed=307 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Tue Jun 16 17:55:33 -04 2026 [elapsed=307 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (5 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.8C)
Checking CCD plane: Z0=-196.00 DZDX=+460.00 DZDY=-414.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Jun 16 17:55:33 -04 2026 [elapsed=307 sec] WEATHER
status weather: C 22.6C 9% 2/4kph@50 DP33.6C/-52C/d IDLE
...OK
Tue Jun 16 17:55:34 -04 2026 [elapsed=308 sec] MET
status...OK
met: c=N o=N Ro2d Cx0 Wo2d Ho2d To2d Do2d wait C IDLE
Tue Jun 16 17:55:34 -04 2026 [elapsed=308 sec] SENTRY
status...OK
sentry: close=NO open=NO drop=NO IDLE
Tue Jun 16 17:55:34 -04 2026 [elapsed=308 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 189.59 -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 0.050s 107 1.2%
A 0.081s 380 4.2%
A 0.111s 714 7.8%
A 0.141s 1183 12.9%
A 0.172s 1754 19.2%
A 0.202s 2443 26.7%
A 0.232s 3240 35.4%
A 0.263s 4133 45.1%
A 0.293s 5078 55.5%
A 0.323s 5953 65.0%
A 0.353s 6759 73.8%
A 0.384s 7416 81.0%
A 0.414s 7993 87.3%
A 0.444s 8443 92.2%
A 0.474s 8783 95.9%
A 0.505s 9023 98.6%
A 0.535s 9137 99.8%
A 0.565s 9155 100.0%
B 0.020s 1 0.0%
B 0.050s 91 1.0%
B 0.081s 378 4.1%
B 0.111s 736 8.0%
B 0.142s 1192 13.0%
B 0.172s 1781 19.5%
B 0.202s 2470 27.0%
B 0.233s 3256 35.6%
B 0.263s 4202 45.9%
B 0.293s 5114 55.9%
B 0.323s 5996 65.5%
B 0.354s 6781 74.1%
B 0.384s 7431 81.2%
B 0.414s 8027 87.7%
B 0.445s 8459 92.4%
B 0.475s 8802 96.2%
B 0.505s 9032 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9058 99.0%
A 0.081s 8769 95.8%
A 0.111s 8426 92.0%
A 0.141s 7959 86.9%
A 0.172s 7378 80.6%
A 0.202s 6688 73.1%
A 0.233s 5894 64.4%
A 0.263s 4982 54.4%
A 0.293s 4052 44.3%
A 0.324s 3166 34.6%
A 0.354s 2376 26.0%
A 0.384s 1714 18.7%
A 0.414s 1141 12.5%
A 0.445s 703 7.7%
A 0.475s 357 3.9%
A 0.505s 130 1.4%
A 0.536s 13 0.1%
A 0.566s -5 0.0%
B 0.020s 9149 99.9%
B 0.051s 9046 98.8%
B 0.081s 8780 95.9%
B 0.111s 8430 92.1%
B 0.141s 7977 87.1%
B 0.172s 7397 80.8%
B 0.202s 6686 73.0%
B 0.232s 5899 64.4%
B 0.263s 4989 54.5%
B 0.293s 4035 44.1%
B 0.323s 3169 34.6%
B 0.354s 2373 25.9%
B 0.384s 1717 18.8%
B 0.414s 1151 12.6%
B 0.444s 686 7.5%
B 0.475s 361 3.9%
B 0.505s 126 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 0.565 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 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.22e+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
Tue Jun 16 17:56:09 -04 2026 [elapsed=343 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
taking preflight exposures:
acam...OK
acam image:
156M Jun 16 17:56 /atlas/obs/04a/61208/04a61208e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Jun 16 17:56:31 -04 2026 [elapsed=365 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
Tue Jun 16 17:56:31 -04 2026 [elapsed=365 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61207.91425968|info|galildriver|using focus model: foc=9830+(3.50)*21.9+(-0.35)*60.2=9885.6
61207.91426434|info|galildriver|o 3 IN | cass: 6101646 30.51 mm b=23 move=NO | arm: 409747 477.01 mm b=03 move=OK | foc: 53273895 9885 um b=0f [cmd]
bestfocus for o...OK
Tue Jun 16 17:56:33 -04 2026 [elapsed=367 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Jun 16 17:57:02 -04 2026 [elapsed=396 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.
Tue Jun 16 17:57:03 -04 2026 [elapsed=397 sec] Happy observing!
Tue Jun 16 17:57:03 -04 2026 [elapsed=397 sec] Preflight took 396 seconds to complete.
Tue Jun 16 17:57:03 -04 2026 [elapsed=397 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 0.051s 107 1.2% A 0.081s 376 4.1% A 0.111s 724 7.9% A 0.141s 1180 12.9% A 0.172s 1762 19.2% A 0.202s 2443 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.293s 5074 55.4% A 0.323s 5970 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.413s 7990 87.3% A 0.451s 8443 92.2% A 0.481s 8846 96.6% A 0.511s 9058 99.0% A 0.541s 9146 99.9% B 0.020s -1 -0.0% B 0.050s 104 1.1% B 0.081s 368 4.0% B 0.111s 712 7.8% B 0.141s 1183 12.9% B 0.172s 1751 19.1% B 0.202s 2438 26.6% B 0.232s 3241 35.4% B 0.262s 4136 45.2% B 0.292s 5071 55.4% B 0.323s 5958 65.1% B 0.353s 6748 73.7% B 0.383s 7420 81.1% B 0.413s 7985 87.2% B 0.443s 8443 92.2% B 0.474s 8785 96.0% B 0.504s 9015 98.5% B 0.534s 9135 99.8% B 0.564s 9154 100.0% sleeping 3 sec between shutter moves... A 0.020s 9154 100.0% A 0.050s 9044 98.8% A 0.081s 8771 95.8% A 0.111s 8410 91.9% A 0.141s 7944 86.8% A 0.171s 7363 80.4% A 0.202s 6695 73.1% A 0.232s 5898 64.4% A 0.262s 4985 54.5% A 0.292s 4042 44.2% A 0.323s 3169 34.6% A 0.353s 2385 26.1% A 0.383s 1709 18.7% A 0.413s 1149 12.6% A 0.444s 693 7.6% A 0.474s 357 3.9% A 0.504s 126 1.4% A 0.535s 13 0.1% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9011 98.4% B 0.081s 8761 95.7% B 0.111s 8408 91.9% B 0.141s 7936 86.7% B 0.171s 7358 80.4% B 0.201s 6665 72.8% B 0.232s 5891 64.4% B 0.262s 4981 54.4% B 0.292s 4054 44.3% B 0.322s 3164 34.6% B 0.352s 2391 26.1% B 0.383s 1703 18.6% B 0.413s 1147 12.5% B 0.443s 700 7.6% B 0.473s 357 3.9% B 0.503s 138 1.5% B 0.534s 15 0.2% B 0.564s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R