CHL Preflight Night 61342
Executing preflight for 61342 at Wed Oct 28 19:05:13 -03 2026.
Log can be found in /atlas/obs/04/61342/preflight.dat.
Setting donefile '/atlas/obs/04/61342/preflight_complete.20261028220513.22796' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261028220513.22796.
Wed Oct 28 19:05:13 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Oct 28 19:05:13 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [9defc7e6-19ef-47d8-b3f8-40e2971295da;1800]
Wed Oct 28 19:05:13 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Wed Oct 28 19:05:13 -03 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Wed Oct 28 19:05:13 -03 2026 [elapsed=0 sec] auxcam is disabled.
Wed Oct 28 19:05:13 -03 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Wed Oct 28 19:05:13 -03 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1793225106
OK
Wed Oct 28 19:05:13 -03 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Wed Oct 28 19:05:13 -03 2026 [elapsed=0 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
Wed Oct 28 19:05:15 -03 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
Wed Oct 28 19:05:16 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Oct 28 19:05:16 -03 2026 [elapsed=3 sec] CLOCKS
admin: Wed Oct 28 22:05:16 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 64 512 377 0.305 0.063 0.061
*10.0.11.4 .GPS. 1 u 54 512 377 0.508 0.185 0.063
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.58 29.88.99.4 2 u 49 1024 377 227.227 -9.385 1.918
-185.125.190.56 29.88.99.4 2 u 1031 1024 377 226.645 -9.986 1.732
-185.125.190.57 29.88.99.4 2 u 127 1024 377 222.559 -7.479 1.071
+alphyn.canonica 132.163.96.1 2 u 193 512 337 150.299 -6.326 3.771
Wed Oct 28 19:05:17 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (7032GB)
200GB available in /atlas/red...OK (10627GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 3.5T 6.8T 35% /
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 3.6T 11T 26% /
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 454G 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
Wed Oct 28 19:05:17 -03 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
Wed Oct 28 19:05:17 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Wed Oct 28 19:05:17 -03 2026 [elapsed=4 sec] SERVICES2
Wed Oct 28 19:05:17 -03 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Oct 28 19:05:22 -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= 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
Wed Oct 28 19:08:59 -03 2026 [elapsed=226 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: 296.69 -27.58, az/alt=324.66 +86.49 idle(e) IDLE
Wed Oct 28 19:09:55 -03 2026 [elapsed=282 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Oct 28 19:10:17 -03 2026 [elapsed=304 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=832/0 spi=38.7 IDLE
Wed Oct 28 19:10:17 -03 2026 [elapsed=304 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 (-54.1C)
Checking CCD plane: Z0=-195.00 DZDX=+462.00 DZDY=-416.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=832 IDLE
Wed Oct 28 19:10:17 -03 2026 [elapsed=304 sec] WEATHER
status weather: clear 24.6C 40% 7/14kph@311 DP14.6C/-7C/d IDLE
...OK
Wed Oct 28 19:10:18 -03 2026 [elapsed=305 sec] MET
status...OK
met: c=N o=Y Ro2d Co1d Wo19d Ho19d To19d Do1d IDLE
Wed Oct 28 19:10:18 -03 2026 [elapsed=305 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Oct 28 19:10:18 -03 2026 [elapsed=305 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 325.36 -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 -1 -0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 8 0.1%
A 0.051s 107 1.2%
A 0.081s 380 4.2%
A 0.111s 736 8.0%
A 0.142s 1234 13.5%
A 0.172s 1811 19.8%
A 0.202s 2491 27.2%
A 0.233s 3265 35.7%
A 0.263s 4210 46.0%
A 0.293s 5147 56.2%
A 0.324s 6005 65.6%
A 0.354s 6815 74.4%
A 0.384s 7445 81.3%
A 0.414s 8018 87.6%
A 0.445s 8481 92.6%
A 0.475s 8799 96.1%
A 0.505s 9036 98.7%
A 0.536s 9142 99.9%
A 0.566s 9157 100.0%
B 0.020s 1 0.0%
B 0.050s 92 1.0%
B 0.081s 376 4.1%
B 0.111s 735 8.0%
B 0.142s 1193 13.0%
B 0.172s 1781 19.5%
B 0.202s 2493 27.2%
B 0.233s 3281 35.8%
B 0.263s 4201 45.9%
B 0.293s 5145 56.2%
B 0.324s 6022 65.8%
B 0.354s 6805 74.3%
B 0.384s 7452 81.4%
B 0.415s 8026 87.7%
B 0.445s 8472 92.5%
B 0.475s 8801 96.1%
B 0.506s 9037 98.7%
B 0.536s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9045 98.8%
A 0.081s 8765 95.8%
A 0.111s 8428 92.1%
A 0.141s 7956 86.9%
A 0.172s 7341 80.2%
A 0.202s 6668 72.8%
A 0.232s 5858 64.0%
A 0.262s 4948 54.1%
A 0.293s 4027 44.0%
A 0.323s 3137 34.3%
A 0.353s 2370 25.9%
A 0.384s 1680 18.4%
A 0.414s 1123 12.3%
A 0.444s 691 7.5%
A 0.474s 344 3.8%
A 0.505s 132 1.4%
A 0.535s 7 0.1%
B 0.020s 9148 99.9%
B 0.051s 9040 98.8%
B 0.081s 8773 95.8%
B 0.111s 8406 91.8%
B 0.142s 7943 86.8%
B 0.172s 7357 80.4%
B 0.203s 6663 72.8%
B 0.233s 5873 64.2%
B 0.264s 4960 54.2%
B 0.294s 4005 43.8%
B 0.324s 3143 34.3%
B 0.355s 2330 25.5%
B 0.385s 1676 18.3%
B 0.415s 1118 12.2%
B 0.445s 663 7.2%
B 0.476s 342 3.7%
B 0.506s 115 1.3%
B 0.536s 4 0.0%
A 1 0.0mm 15 N F R | B -4 -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 0.535 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=1.18e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9896 IDLE
Wed Oct 28 19:10:55 -03 2026 [elapsed=342 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=832/0 spi=38.7 IDLE
taking preflight exposures:
acam...OK
acam image:
159M Oct 28 19:11 /atlas/obs/04a/61342/04a61342e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Oct 28 19:11:17 -03 2026 [elapsed=364 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (8 seconds old)
OTA humidity level...OK (11%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Oct 28 19:11:17 -03 2026 [elapsed=364 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61341.92451204|info|galildriver|using focus model: foc=9830+(3.50)*20.7+(-0.35)*60.3=9881.4
61341.92451741|info|galildriver|o 3 IN | cass: 6101612 30.51 mm b=23 move=NO | arm: 406759 473.54 mm b=03 move=OK | foc: 53273595 9886 um b=8f M [focus]
61341.92452303|info|galildriver|o 3 IN | cass: 6101615 30.51 mm b=23 move=NO | arm: 406759 473.54 mm b=03 move=OK | foc: 53274732 9881 um b=0f [cmd]
bestfocus for o...OK
Wed Oct 28 19:11:19 -03 2026 [elapsed=366 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Oct 28 19:11:46 -03 2026 [elapsed=393 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.
Wed Oct 28 19:11:47 -03 2026 [elapsed=394 sec] Happy observing!
Wed Oct 28 19:11:47 -03 2026 [elapsed=394 sec] Preflight took 394 seconds to complete.
Wed Oct 28 19:11:47 -03 2026 [elapsed=394 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 385 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1782 19.5% A 0.202s 2465 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.323s 5998 65.5% A 0.353s 6775 74.0% A 0.383s 7432 81.2% A 0.413s 8005 87.4% A 0.444s 8458 92.4% A 0.474s 8793 96.1% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.051s 113 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.142s 1201 13.1% B 0.172s 1773 19.4% B 0.202s 2467 26.9% B 0.232s 3268 35.7% B 0.263s 4166 45.5% B 0.293s 5103 55.7% B 0.323s 5988 65.4% B 0.353s 6773 74.0% B 0.384s 7439 81.3% B 0.414s 8002 87.4% B 0.444s 8456 92.4% B 0.474s 8794 96.1% B 0.504s 9024 98.6% B 0.535s 9139 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8422 92.0% A 0.141s 7958 86.9% A 0.172s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.293s 4037 44.1% A 0.323s 3166 34.6% A 0.353s 2387 26.1% A 0.384s 1711 18.7% A 0.414s 1147 12.5% A 0.444s 706 7.7% A 0.474s 359 3.9% A 0.504s 130 1.4% A 0.535s 15 0.2% A 0.565s 1 0.0% B 0.020s 9143 99.9% B 0.050s 9018 98.5% B 0.081s 8771 95.8% B 0.111s 8421 92.0% B 0.141s 7953 86.9% B 0.171s 7400 80.8% B 0.202s 6714 73.3% B 0.232s 5893 64.4% B 0.262s 5009 54.7% B 0.292s 4083 44.6% B 0.322s 3192 34.9% B 0.353s 2418 26.4% B 0.383s 1725 18.8% B 0.413s 1160 12.7% B 0.443s 713 7.8% B 0.474s 364 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R