CHL Preflight Night 61189
Executing preflight for 61189 at Thu May 28 16:53:14 -04 2026.
Log can be found in /atlas/obs/04/61189/preflight.dat.
Setting donefile '/atlas/obs/04/61189/preflight_complete.20260528205314.2514' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260528205314.2514.
Thu May 28 16:53:14 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu May 28 16:53:14 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [5f6f6208-0641-459d-9ba7-c26bfb20d283;1800]
Thu May 28 16:53:14 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu May 28 16:53:15 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu May 28 16:53:15 -04 2026 [elapsed=1 sec] auxcam is disabled.
Thu May 28 16:53:15 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu May 28 16:53:15 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1780001592
OK
Thu May 28 16:53:15 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu May 28 16:53:15 -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 May 28 16:53:16 -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 May 28 16:53:17 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu May 28 16:53:17 -04 2026 [elapsed=3 sec] CLOCKS
admin: Thu May 28 20:53:17 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 457 1024 377 0.325 1.469 0.316
*10.0.11.4 .GPS. 1 u 235 1024 377 0.624 1.640 0.342
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 634 1024 377 215.082 -7.410 1.246
-185.125.190.58 146.131.121.246 2 u 837 1024 377 212.895 -4.752 1.339
+alphyn.canonica 132.163.96.1 2 u 144 1024 377 150.598 2.950 1.052
-185.125.190.56 99.220.8.133 2 u 374 1024 377 212.649 -5.318 0.864
Thu May 28 16:53:18 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3618GB)
200GB available in /atlas/red...OK (7847GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.8T 3.5T 67% /
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 20G 36G 36% /
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 6.2T 7.5T 46% /
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 452G 13T 4% /
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 906G 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 695G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Thu May 28 16:53:18 -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
Thu May 28 16:53:18 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Thu May 28 16:53:18 -04 2026 [elapsed=4 sec] SERVICES2
Thu May 28 16:53:18 -04 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu May 28 16:53:22 -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=1.55e+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 May 28 16:56:45 -04 2026 [elapsed=211 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: 127.81 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Thu May 28 16:57:50 -04 2026 [elapsed=276 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu May 28 16:58:15 -04 2026 [elapsed=301 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Thu May 28 16:58:15 -04 2026 [elapsed=301 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (1 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.9C)
Checking CCD plane: Z0=-196.00 DZDX=+469.00 DZDY=-414.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu May 28 16:58:15 -04 2026 [elapsed=301 sec] WEATHER
status weather: C 23.5C 17% 11/13kph@261 DP25.3C/-29C/d IDLE
...OK
Thu May 28 16:58:16 -04 2026 [elapsed=302 sec] MET
status...OK
met: c=N o=Y Ro16d Co11h Wo16d Ho16d To16d Do17d IDLE
Thu May 28 16:58:16 -04 2026 [elapsed=302 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu May 28 16:58:16 -04 2026 [elapsed=302 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 156.49 -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 -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 6 0.1%
A 0.051s 114 1.2%
A 0.081s 392 4.3%
A 0.112s 730 8.0%
A 0.142s 1204 13.2%
A 0.172s 1773 19.4%
A 0.202s 2465 26.9%
A 0.233s 3262 35.6%
A 0.263s 4161 45.5%
A 0.293s 5110 55.8%
A 0.323s 5985 65.4%
A 0.354s 6779 74.1%
A 0.384s 7431 81.2%
A 0.414s 8010 87.5%
A 0.445s 8458 92.4%
A 0.475s 8795 96.1%
A 0.506s 9036 98.7%
A 0.536s 9142 99.9%
A 0.566s 9156 100.0%
B 0.020s 1 0.0%
B 0.050s 92 1.0%
B 0.081s 377 4.1%
B 0.111s 735 8.0%
B 0.141s 1194 13.0%
B 0.172s 1782 19.5%
B 0.202s 2469 27.0%
B 0.232s 3256 35.6%
B 0.263s 4170 45.6%
B 0.293s 5113 55.9%
B 0.324s 6024 65.8%
B 0.354s 6804 74.3%
B 0.384s 7451 81.4%
B 0.415s 8026 87.7%
B 0.445s 8472 92.5%
B 0.476s 8802 96.2%
B 0.506s 9037 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9055 98.9%
A 0.081s 8760 95.7%
A 0.111s 8413 91.9%
A 0.142s 7939 86.7%
A 0.172s 7359 80.4%
A 0.202s 6667 72.8%
A 0.232s 5870 64.1%
A 0.263s 4950 54.1%
A 0.293s 4023 43.9%
A 0.323s 3136 34.3%
A 0.353s 2356 25.7%
A 0.384s 1694 18.5%
A 0.414s 1125 12.3%
A 0.444s 690 7.5%
A 0.475s 347 3.8%
A 0.505s 123 1.3%
A 0.535s 10 0.1%
A 0.565s -4 0.0%
B 0.020s 9149 99.9%
B 0.050s 9046 98.8%
B 0.081s 8780 95.9%
B 0.111s 8431 92.1%
B 0.141s 7978 87.2%
B 0.172s 7396 80.8%
B 0.202s 6710 73.3%
B 0.232s 5925 64.7%
B 0.263s 4989 54.5%
B 0.293s 4035 44.1%
B 0.323s 3168 34.6%
B 0.354s 2373 25.9%
B 0.384s 1717 18.8%
B 0.414s 1152 12.6%
B 0.444s 697 7.6%
B 0.474s 370 4.0%
B 0.505s 134 1.5%
B 0.535s 8 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 0.566 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.565 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=9885 IDLE
Thu May 28 16:58:51 -04 2026 [elapsed=337 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
taking preflight exposures:
acam...OK
acam image:
158M May 28 16:59 /atlas/obs/04a/61189/04a61189e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu May 28 16:59:14 -04 2026 [elapsed=360 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (8 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu May 28 16:59:14 -04 2026 [elapsed=360 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61188.87447585|info|galildriver|using focus model: foc=9830+(3.50)*22.0+(-0.35)*60.2=9885.9
61188.87448052|info|galildriver|o 3 IN | cass: 6101319 30.51 mm b=23 move=NO | arm: 406829 473.62 mm b=03 move=OK | foc: 53273670 9886 um b=0f [cmd]
bestfocus for o...OK
Thu May 28 16:59:16 -04 2026 [elapsed=362 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu May 28 16:59:49 -04 2026 [elapsed=395 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 May 28 16:59:51 -04 2026 [elapsed=397 sec] Happy observing!
Thu May 28 16:59:51 -04 2026 [elapsed=397 sec] Preflight took 397 seconds to complete.
Thu May 28 16:59:51 -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 0.050s 114 1.2% A 0.081s 386 4.2% A 0.111s 736 8.0% A 0.141s 1196 13.1% A 0.171s 1784 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4175 45.6% A 0.292s 5103 55.7% A 0.323s 5998 65.5% A 0.353s 6775 74.0% A 0.383s 7433 81.2% A 0.413s 8006 87.5% A 0.444s 8457 92.4% A 0.474s 8792 96.0% A 0.504s 9027 98.6% A 0.534s 9137 99.8% A 0.564s 9153 100.0% B 0.020s 0 0.0% B 0.050s 112 1.2% B 0.080s 378 4.1% B 0.111s 727 7.9% B 0.141s 1185 12.9% B 0.171s 1751 19.1% B 0.201s 2441 26.7% B 0.231s 3240 35.4% B 0.262s 4137 45.2% B 0.292s 5072 55.4% B 0.322s 5959 65.1% B 0.352s 6748 73.7% B 0.382s 7421 81.1% B 0.413s 7987 87.3% B 0.443s 8431 92.1% B 0.473s 8776 95.9% B 0.503s 9011 98.4% B 0.533s 9134 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9049 98.9% A 0.081s 8778 95.9% A 0.111s 8420 92.0% A 0.141s 7957 86.9% A 0.172s 7380 80.6% A 0.202s 6691 73.1% A 0.232s 5895 64.4% A 0.262s 4981 54.4% A 0.293s 4038 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.444s 693 7.6% A 0.474s 359 3.9% A 0.504s 125 1.4% A 0.534s 15 0.2% A 0.564s 2 0.0% B 0.020s 9144 99.9% B 0.050s 9018 98.5% B 0.081s 8771 95.8% B 0.111s 8421 92.0% B 0.141s 7952 86.9% B 0.171s 7378 80.6% B 0.201s 6689 73.1% B 0.232s 5919 64.7% B 0.262s 5012 54.8% B 0.292s 4083 44.6% B 0.322s 3191 34.9% B 0.352s 2414 26.4% B 0.383s 1724 18.8% B 0.413s 1164 12.7% B 0.443s 712 7.8% B 0.473s 366 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R