CHL Preflight Night 61355
Executing preflight for 61355 at Tue Nov 10 19:15:52 -03 2026.
Log can be found in /atlas/obs/04/61355/preflight.dat.
Setting donefile '/atlas/obs/04/61355/preflight_complete.20261110221552.6217' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261110221552.6217.
Tue Nov 10 19:15:52 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Nov 10 19:15:52 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [3465691f-8c0a-4f08-9036-3f781c851699;1800]
Tue Nov 10 19:15:52 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue Nov 10 19:15:53 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue Nov 10 19:15:53 -03 2026 [elapsed=1 sec] auxcam is disabled.
Tue Nov 10 19:15:53 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Nov 10 19:15:53 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1794348952
OK
Tue Nov 10 19:15:53 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Nov 10 19:15:53 -03 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
Tue Nov 10 19:15:55 -03 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
Tue Nov 10 19:15:55 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Nov 10 19:15:55 -03 2026 [elapsed=3 sec] CLOCKS
admin: Tue Nov 10 22:15:55 UTC 2026
metbox: 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 672 1024 377 0.335 0.850 0.126
+10.0.11.4 .GPS. 1 u 717 1024 377 0.693 1.090 0.839
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.58 29.88.99.4 2 u 468 1024 377 231.569 -10.958 0.984
-185.125.190.56 29.88.99.4 2 u 637 1024 377 221.305 -6.510 2.102
-185.125.190.57 29.88.99.4 2 u 421 1024 377 227.070 -9.950 1.513
+alphyn.canonica 132.163.96.1 2 u 407 1024 367 148.412 -4.541 0.420
Tue Nov 10 19:15:56 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (6465GB)
200GB available in /atlas/red...OK (10735GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 4.1T 6.2T 40% /
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 3.5T 11T 25% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc2:/dev/md0p1 15T 456G 13T 4% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 904G 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 698G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Tue Nov 10 19:15:57 -03 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
Tue Nov 10 19:15:57 -03 2026 [elapsed=5 sec] Disabling mount tracking.
Tue Nov 10 19:15:57 -03 2026 [elapsed=5 sec] SERVICES2
Tue Nov 10 19:15:57 -03 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Nov 10 19:16:01 -03 2026 [elapsed=9 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=1.62e+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 Nov 10 19:19:19 -03 2026 [elapsed=207 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: 312.10 -27.58, az/alt=324.66 +86.49 idle(e) IDLE
Tue Nov 10 19:20:16 -03 2026 [elapsed=264 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Nov 10 19:20:38 -03 2026 [elapsed=286 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Tue Nov 10 19:20:38 -03 2026 [elapsed=286 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (-0 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.7C)
Checking CCD plane: Z0=-198.00 DZDX=+458.00 DZDY=-411.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Nov 10 19:20:38 -03 2026 [elapsed=286 sec] WEATHER
status weather: clear 29.0C 31% 8/13kph@272 DP17.1C/-78C/d IDLE
...OK
Tue Nov 10 19:20:39 -03 2026 [elapsed=287 sec] MET
status...OK
met: c=N o=Y Ro8d Co11h Wo8d Ho8d To2d Do16h IDLE
Tue Nov 10 19:20:39 -03 2026 [elapsed=287 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Nov 10 19:20:39 -03 2026 [elapsed=287 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 340.77 -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 2 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 100 1.1%
A 0.081s 376 4.1%
A 0.111s 727 7.9%
A 0.141s 1195 13.1%
A 0.172s 1764 19.3%
A 0.202s 2462 26.9%
A 0.232s 3239 35.4%
A 0.263s 4148 45.3%
A 0.293s 5125 56.0%
A 0.323s 5971 65.2%
A 0.353s 6762 73.9%
A 0.384s 7424 81.1%
A 0.414s 8006 87.5%
A 0.445s 8469 92.5%
A 0.475s 8794 96.1%
A 0.505s 9032 98.7%
A 0.536s 9136 99.8%
A 0.566s 9153 100.0%
B 0.020s 4 0.0%
B 0.050s 96 1.0%
B 0.081s 377 4.1%
B 0.111s 736 8.0%
B 0.141s 1189 13.0%
B 0.172s 1803 19.7%
B 0.202s 2498 27.3%
B 0.232s 3282 35.9%
B 0.262s 4200 45.9%
B 0.293s 5145 56.2%
B 0.323s 6025 65.8%
B 0.353s 6800 74.3%
B 0.384s 7451 81.4%
B 0.414s 8028 87.7%
B 0.444s 8472 92.5%
B 0.475s 8801 96.1%
B 0.505s 9038 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9063 99.0%
A 0.081s 8773 95.8%
A 0.111s 8439 92.2%
A 0.141s 7968 87.0%
A 0.172s 7364 80.4%
A 0.202s 6686 73.0%
A 0.233s 5861 64.0%
A 0.263s 4951 54.1%
A 0.293s 4024 44.0%
A 0.323s 3138 34.3%
A 0.354s 2370 25.9%
A 0.384s 1680 18.4%
A 0.415s 1124 12.3%
A 0.445s 692 7.6%
A 0.475s 349 3.8%
A 0.505s 132 1.4%
A 0.535s 5 0.1%
B 0.020s 9149 99.9%
B 0.050s 9041 98.8%
B 0.081s 8771 95.8%
B 0.111s 8417 91.9%
B 0.141s 7960 87.0%
B 0.172s 7379 80.6%
B 0.202s 6686 73.0%
B 0.232s 5898 64.4%
B 0.262s 4989 54.5%
B 0.293s 4037 44.1%
B 0.323s 3166 34.6%
B 0.353s 2375 25.9%
B 0.384s 1721 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 8 0.1%
A 0 0.0mm 15 N F R | B 0 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 0.535 seconds.
Shutter A closed to 0.1 percent in 0.535 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=1.15e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[4] foc=9894 IDLE
Tue Nov 10 19:21:16 -03 2026 [elapsed=324 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Nov 10 19:21 /atlas/obs/04a/61355/04a61355e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Nov 10 19:21:38 -03 2026 [elapsed=346 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (89 seconds old)
OTA humidity level...OK (11%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Nov 10 19:21:38 -03 2026 [elapsed=346 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61354.93169990|info|galildriver|using focus model: foc=9830+(3.50)*24.4+(-0.35)*60.3=9894.3
61354.93170458|info|galildriver|c 4 IN | cass: 9136040 45.68 mm b=23 move=NO | arm: 407051 473.88 mm b=03 move=OK | foc: 53271990 9894 um b=0f [cmd]
bestfocus for c...OK
Tue Nov 10 19:21:39 -03 2026 [elapsed=347 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Nov 10 19:22:08 -03 2026 [elapsed=376 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 Nov 10 19:22:09 -03 2026 [elapsed=377 sec] Happy observing!
Tue Nov 10 19:22:09 -03 2026 [elapsed=377 sec] Preflight took 377 seconds to complete.
Tue Nov 10 19:22:09 -03 2026 [elapsed=377 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 384 4.2% A 0.111s 737 8.1% A 0.142s 1197 13.1% A 0.172s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3293 36.0% A 0.263s 4174 45.6% A 0.293s 5103 55.7% A 0.323s 5997 65.5% A 0.353s 6776 74.0% A 0.384s 7432 81.2% A 0.414s 8005 87.4% A 0.444s 8460 92.4% A 0.474s 8793 96.1% A 0.505s 9027 98.6% A 0.535s 9139 99.8% A 0.565s 9154 100.0% B 0.020s 1 0.0% B 0.050s 113 1.2% B 0.081s 378 4.1% B 0.111s 729 8.0% B 0.141s 1202 13.1% B 0.171s 1774 19.4% B 0.202s 2467 26.9% B 0.232s 3266 35.7% B 0.262s 4167 45.5% B 0.292s 5104 55.8% B 0.322s 5988 65.4% B 0.353s 6770 74.0% B 0.383s 7437 81.2% B 0.413s 8001 87.4% B 0.443s 8456 92.4% B 0.474s 8798 96.1% B 0.504s 9023 98.6% B 0.534s 9140 99.8% B 0.565s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9048 98.8% A 0.081s 8779 95.9% A 0.111s 8421 92.0% A 0.141s 7957 86.9% A 0.171s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4983 54.4% A 0.292s 4037 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 0.443s 693 7.6% A 0.474s 359 3.9% A 0.504s 124 1.4% A 0.534s 13 0.1% A 0.564s 1 0.0% B 0.020s 9143 99.9% B 0.050s 9020 98.5% B 0.081s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.171s 7379 80.6% B 0.202s 6690 73.1% B 0.232s 5895 64.4% B 0.262s 4980 54.4% B 0.293s 4053 44.3% B 0.323s 3162 34.5% B 0.353s 2397 26.2% B 0.383s 1703 18.6% B 0.414s 1144 12.5% B 0.444s 713 7.8% B 0.474s 363 4.0% B 0.504s 138 1.5% B 0.534s 18 0.2% B 0.565s 1 0.0% A 1 0.0mm 15 N F R | B 1 0.0mm 15 N F R