CHL Preflight Night 61203
Executing preflight for 61203 at Thu Jun 11 17:51:16 -04 2026.
Log can be found in /atlas/obs/04/61203/preflight.dat.
Setting donefile '/atlas/obs/04/61203/preflight_complete.20260611215116.25053' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260611215116.25053.
Thu Jun 11 17:51:16 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Jun 11 17:51:16 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [cce5642d-1930-47ce-bfd3-8102e537a861;1800]
Thu Jun 11 17:51:16 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu Jun 11 17:51:17 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu Jun 11 17:51:17 -04 2026 [elapsed=1 sec] auxcam is disabled.
Thu Jun 11 17:51:17 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Jun 11 17:51:17 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1781214673
OK
Thu Jun 11 17:51:17 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Jun 11 17:51:17 -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
Thu Jun 11 17:51:18 -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
Thu Jun 11 17:51:19 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Jun 11 17:51:19 -04 2026 [elapsed=3 sec] CLOCKS
admin: Thu Jun 11 21:51:19 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 858 1024 377 0.309 0.443 0.498
*10.0.11.4 .GPS. 1 u 930 1024 377 0.609 0.547 0.473
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+185.125.190.56 99.220.8.133 2 u 902 1024 377 217.035 -3.506 1.754
-185.125.190.58 146.131.121.246 2 u 906 1024 377 219.034 -4.523 0.771
-alphyn.canonica 132.163.96.1 2 u 280 1024 377 148.916 -4.658 2.415
-185.125.190.57 99.220.8.133 2 u 1070 1024 377 215.840 -3.959 1.466
Thu Jun 11 17:51:19 -04 2026 [elapsed=3 sec] DISKS
200GB available in /atlas/obs...OK (4026GB)
200GB available in /atlas/red...OK (8300GB)
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 5.8T 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
Thu Jun 11 17:51:19 -04 2026 [elapsed=3 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
Thu Jun 11 17:51:20 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Thu Jun 11 17:51:20 -04 2026 [elapsed=4 sec] SERVICES2
Thu Jun 11 17:51:20 -04 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Jun 11 17:51:24 -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= 912kB time=00:00:29.18 bitrate= 256.0kbits/s speed=1.61e+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
Thu Jun 11 17:55:14 -04 2026 [elapsed=238 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: 156.27 -27.58, az/alt=324.52 +86.48 idle(e) IDLE
Thu Jun 11 17:56:20 -04 2026 [elapsed=304 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Jun 11 17:56:45 -04 2026 [elapsed=328 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=595/0 spi=38.9 IDLE
Thu Jun 11 17:56:45 -04 2026 [elapsed=329 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (7 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=+461.00 DZDY=-419.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=595 IDLE
Thu Jun 11 17:56:45 -04 2026 [elapsed=329 sec] WEATHER
status weather: C 17.6C 20% 5/12kph@323 DP22.0C/-41C/d IDLE
...OK
Thu Jun 11 17:56:45 -04 2026 [elapsed=329 sec] MET
status...OK
met: c=N o=Y Ro19h Co18h Wo9d Ho9d To9d Do9d IDLE
Thu Jun 11 17:56:45 -04 2026 [elapsed=329 sec] SENTRY
status...OK
sentry: close=NO open=YES drop=YES IDLE
Thu Jun 11 17:56:45 -04 2026 [elapsed=329 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 184.95 -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 -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 8 0.1%
A 0.051s 109 1.2%
A 0.081s 387 4.2%
A 0.111s 737 8.1%
A 0.142s 1210 13.2%
A 0.172s 1780 19.4%
A 0.202s 2464 26.9%
A 0.232s 3252 35.5%
A 0.263s 4173 45.6%
A 0.293s 5116 55.9%
A 0.323s 5977 65.3%
A 0.353s 6784 74.1%
A 0.384s 7433 81.2%
A 0.414s 8010 87.5%
A 0.444s 8460 92.4%
A 0.475s 8795 96.1%
A 0.505s 9036 98.7%
A 0.535s 9142 99.9%
A 0.566s 9158 100.0%
B 0.020s 0 0.0%
B 0.051s 80 0.9%
B 0.081s 363 4.0%
B 0.111s 723 7.9%
B 0.142s 1190 13.0%
B 0.172s 1779 19.4%
B 0.202s 2470 27.0%
B 0.232s 3254 35.5%
B 0.263s 4169 45.5%
B 0.293s 5111 55.8%
B 0.323s 5996 65.5%
B 0.354s 6781 74.1%
B 0.384s 7431 81.2%
B 0.414s 8010 87.5%
B 0.444s 8459 92.4%
B 0.475s 8792 96.0%
B 0.505s 9025 98.6%
B 0.535s 9144 99.9%
B 0.565s 9161 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9059 99.0%
A 0.081s 8774 95.8%
A 0.111s 8438 92.2%
A 0.141s 7985 87.2%
A 0.171s 7367 80.5%
A 0.202s 6715 73.4%
A 0.232s 5893 64.4%
A 0.262s 5013 54.8%
A 0.292s 4082 44.6%
A 0.323s 3195 34.9%
A 0.353s 2413 26.4%
A 0.383s 1723 18.8%
A 0.414s 1155 12.6%
A 0.444s 715 7.8%
A 0.474s 364 4.0%
A 0.504s 142 1.6%
A 0.535s 8 0.1%
B 0.020s 9148 99.9%
B 0.051s 9035 98.7%
B 0.081s 8761 95.7%
B 0.111s 8405 91.8%
B 0.142s 7943 86.8%
B 0.172s 7358 80.4%
B 0.202s 6663 72.8%
B 0.233s 5845 63.9%
B 0.263s 4927 53.8%
B 0.293s 4008 43.8%
B 0.324s 3114 34.0%
B 0.354s 2326 25.4%
B 0.384s 1681 18.4%
B 0.414s 1116 12.2%
B 0.445s 660 7.2%
B 0.475s 341 3.7%
B 0.505s 114 1.2%
B 0.536s 4 0.0%
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 100.0 percent in 0.565 seconds.
Shutter A closed to 0.1 percent in 0.535 seconds.
Shutter B closed to 0.0 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.16e+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
Thu Jun 11 17:57:21 -04 2026 [elapsed=365 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=595/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Jun 11 17:57 /atlas/obs/04a/61203/04a61203e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Jun 11 17:57:43 -04 2026 [elapsed=387 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (76 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Jun 11 17:57:43 -04 2026 [elapsed=387 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61202.91509425|info|galildriver|using focus model: foc=9830+(3.50)*18.4+(-0.35)*60.2=9873.3
61202.91509892|info|galildriver|o 3 IN | cass: 6104126 30.52 mm b=23 move=NO | arm: 409735 477.00 mm b=23 move=OK | foc: 53276322 9873 um b=0f [cmd]
bestfocus for o...OK
Thu Jun 11 17:57:45 -04 2026 [elapsed=389 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Jun 11 17:58:18 -04 2026 [elapsed=422 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.
Thu Jun 11 17:58:19 -04 2026 [elapsed=423 sec] Happy observing!
Thu Jun 11 17:58:19 -04 2026 [elapsed=423 sec] Preflight took 423 seconds to complete.
Thu Jun 11 17:58:19 -04 2026 [elapsed=423 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