CHL Preflight Night 61341
Executing preflight for 61341 at Tue Oct 27 19:04:33 -03 2026.
Log can be found in /atlas/obs/04/61341/preflight.dat.
Setting donefile '/atlas/obs/04/61341/preflight_complete.20261027220433.22796' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261027220433.22796.
Tue Oct 27 19:04:33 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Oct 27 19:04:33 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [824ad452-11ab-40f3-9e48-e6b91e876b52;1800]
Tue Oct 27 19:04:33 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue Oct 27 19:04:33 -03 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue Oct 27 19:04:33 -03 2026 [elapsed=0 sec] auxcam is disabled.
Tue Oct 27 19:04:33 -03 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Tue Oct 27 19:04:33 -03 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1793138669
OK
Tue Oct 27 19:04:33 -03 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Tue Oct 27 19:04:33 -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
Tue Oct 27 19:04:35 -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
Tue Oct 27 19:04:35 -03 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Tue Oct 27 19:04:35 -03 2026 [elapsed=2 sec] CLOCKS
admin: Tue Oct 27 22:04:35 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 181 512 377 0.329 0.393 0.087
*10.0.11.4 .GPS. 1 u 462 512 377 0.507 0.514 0.104
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.58 29.88.99.4 2 u 43 1024 377 228.541 -10.219 0.580
-185.125.190.56 29.88.99.4 2 u 306 1024 377 218.595 -5.752 0.913
-185.125.190.57 29.88.99.4 2 u 27 1024 377 221.275 -6.888 1.488
+alphyn.canonica 132.163.96.1 2 u 13 512 337 148.486 -4.969 0.885
Tue Oct 27 19:04:37 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (7149GB)
200GB available in /atlas/red...OK (10651GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 3.4T 6.9T 34% /
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 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
Tue Oct 27 19:04:38 -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 Oct 27 19:04:38 -03 2026 [elapsed=5 sec] Disabling mount tracking.
Tue Oct 27 19:04:38 -03 2026 [elapsed=5 sec] SERVICES2
Tue Oct 27 19:04:38 -03 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Oct 27 19:04:42 -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=1.57e+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 Oct 27 19:07:59 -03 2026 [elapsed=206 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: 295.46 -27.58, az/alt=324.76 +86.49 idle(e) IDLE
Tue Oct 27 19:08:54 -03 2026 [elapsed=261 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Oct 27 19:09:16 -03 2026 [elapsed=283 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.6 IDLE
Tue Oct 27 19:09:16 -03 2026 [elapsed=283 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.1C)
Checking CCD plane: Z0=-196.00 DZDX=+453.00 DZDY=-415.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Oct 27 19:09:16 -03 2026 [elapsed=283 sec] WEATHER
status weather: clear 23.3C 33% 7/8kph@290 DP16.7C/-33C/d IDLE
...OK
Tue Oct 27 19:09:17 -03 2026 [elapsed=284 sec] MET
status...OK
met: c=N o=Y Ro1d Co15h Wo18d Ho18d To18d Do18h IDLE
Tue Oct 27 19:09:17 -03 2026 [elapsed=284 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Oct 27 19:09:17 -03 2026 [elapsed=284 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 324.12 -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 1 0.0mm 15 N F R | B -2 -0.1mm 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 94 1.0%
A 0.081s 356 3.9%
A 0.111s 719 7.9%
A 0.142s 1197 13.1%
A 0.172s 1798 19.6%
A 0.202s 2440 26.7%
A 0.232s 3204 35.0%
A 0.263s 4175 45.6%
A 0.293s 5134 56.1%
A 0.324s 5972 65.2%
A 0.354s 6789 74.2%
A 0.384s 7424 81.1%
A 0.415s 7998 87.4%
A 0.445s 8475 92.6%
A 0.475s 8798 96.1%
A 0.506s 9033 98.7%
A 0.536s 9142 99.9%
A 0.566s 9156 100.0%
B 0.020s 2 0.0%
B 0.051s 99 1.1%
B 0.081s 384 4.2%
B 0.111s 747 8.2%
B 0.141s 1211 13.2%
B 0.172s 1800 19.7%
B 0.202s 2496 27.3%
B 0.232s 3280 35.8%
B 0.263s 4200 45.9%
B 0.293s 5145 56.2%
B 0.323s 6024 65.8%
B 0.354s 6827 74.6%
B 0.384s 7472 81.6%
B 0.415s 8042 87.9%
B 0.445s 8484 92.7%
B 0.475s 8811 96.3%
B 0.506s 9042 98.8%
B 0.536s 9151 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9153 100.0%
A 0.050s 9054 98.9%
A 0.081s 8776 95.9%
A 0.111s 8455 92.4%
A 0.141s 7989 87.3%
A 0.172s 7361 80.4%
A 0.202s 6691 73.1%
A 0.232s 5889 64.3%
A 0.262s 4979 54.4%
A 0.293s 4050 44.2%
A 0.323s 3169 34.6%
A 0.353s 2394 26.2%
A 0.383s 1721 18.8%
A 0.414s 1153 12.6%
A 0.444s 713 7.8%
A 0.474s 367 4.0%
A 0.504s 146 1.6%
A 0.535s 6 0.1%
B 0.020s 9147 99.9%
B 0.050s 9040 98.8%
B 0.081s 8774 95.8%
B 0.111s 8421 92.0%
B 0.141s 7958 86.9%
B 0.171s 7377 80.6%
B 0.202s 6686 73.0%
B 0.232s 5900 64.5%
B 0.262s 4989 54.5%
B 0.293s 4034 44.1%
B 0.323s 3171 34.6%
B 0.353s 2372 25.9%
B 0.383s 1715 18.7%
B 0.413s 1153 12.6%
B 0.444s 687 7.5%
B 0.474s 358 3.9%
B 0.504s 126 1.4%
B 0.535s 6 0.1%
A 0 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 100.0 percent in 0.536 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 ... conversion FAILED! Bogus AAC file?
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9881 IDLE
Tue Oct 27 19:09:48 -03 2026 [elapsed=315 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.6 IDLE
taking preflight exposures:
acam...OK
acam image:
159M Oct 27 19:10 /atlas/obs/04a/61341/04a61341e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Oct 27 19:10:11 -03 2026 [elapsed=338 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (32 seconds old)
OTA humidity level...OK (11%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Oct 27 19:10:11 -03 2026 [elapsed=338 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61340.92374273|info|galildriver|using focus model: foc=9830+(3.50)*20.8+(-0.35)*60.2=9881.7
61340.92374740|info|galildriver|o 3 IN | cass: 6101986 30.51 mm b=23 move=NO | arm: 406759 473.54 mm b=03 move=OK | foc: 53274530 9882 um b=0f [cmd]
bestfocus for o...OK
Tue Oct 27 19:10:12 -03 2026 [elapsed=339 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Oct 27 19:10:38 -03 2026 [elapsed=365 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
Tue Oct 27 19:10:39 -03 2026 [elapsed=366 sec] WARNINGS: DFM shutter audio conversion to WAV failed (bad AAC file?);
Preflight completed with warnings. See
http://tinyurl.com/chlpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Tue Oct 27 19:10:39 -03 2026 [elapsed=366 sec] Happy observing!
Tue Oct 27 19:10:39 -03 2026 [elapsed=366 sec] Preflight took 366 seconds to complete.
Tue Oct 27 19:10:39 -03 2026 [elapsed=366 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