CHL Preflight Night 61100
Executing preflight for 61100 at Sat Feb 28 19:19:43 -03 2026.
Log can be found in /atlas/obs/04/61100/preflight.dat.
Setting donefile '/atlas/obs/04/61100/preflight_complete.20260228221943.1045' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260228221943.1045.
Sat Feb 28 19:19:43 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Feb 28 19:19:43 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [9db36a98-e828-4815-b6ca-ecd342d295a4;1800]
Sat Feb 28 19:19:43 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sat Feb 28 19:19:44 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sat Feb 28 19:19:44 -03 2026 [elapsed=1 sec] auxcam is disabled.
Sat Feb 28 19:19:44 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Feb 28 19:19:44 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1772317177
OK
Sat Feb 28 19:19:44 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Feb 28 19:19:44 -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
Sat Feb 28 19:19:54 -03 2026 [elapsed=11 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
Sat Feb 28 19:19:54 -03 2026 [elapsed=11 sec] QUEUE
0 observations queued.
Sat Feb 28 19:19:54 -03 2026 [elapsed=11 sec] CLOCKS
admin: Sat Feb 28 22:19:54 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 1003 1024 377 0.314 -0.257 0.740
+10.0.11.4 .GPS. 1 u 445 1024 377 0.514 -0.289 0.824
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 351 1024 377 220.017 -7.925 0.733
-185.125.190.58 37.15.221.189 2 u 550 1024 377 218.323 -5.830 1.169
+alphyn.canonica 132.163.96.1 2 u 573 1024 177 156.593 -0.933 0.612
-185.125.190.56 194.121.207.249 2 u 94 1024 377 223.402 -8.359 0.943
Sat Feb 28 19:19:55 -03 2026 [elapsed=12 sec] DISKS
200GB available in /atlas/obs...OK (4967GB)
200GB available in /atlas/red...OK (8649GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.5T 4.8T 54% /
admin:/dev/loop1 105M 105M 0 100% /snap/core/17247
admin:/dev/loop2 105M 105M 0 100% /snap/core/17272
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 20G 35G 37% /
archon:/dev/loop0 105M 105M 0 100% /snap/core/17247
archon:/dev/loop1 105M 105M 0 100% /snap/core/17272
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 5.4T 8.3T 40% /
proc1:/dev/loop0 105M 105M 0 100% /snap/core/17247
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/md0p1 15T 608G 13T 5% /
proc2:/dev/loop0 105M 105M 0 100% /snap/core/17247
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/md0p1 15T 901G 13T 7% /
proc3:/dev/loop1 105M 105M 0 100% /snap/core/17247
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/md0p1 15T 691G 13T 6% /
proc4:/dev/loop1 105M 105M 0 100% /snap/core/17247
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
Sat Feb 28 19:19:55 -03 2026 [elapsed=12 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
Sat Feb 28 19:19:55 -03 2026 [elapsed=12 sec] Disabling mount tracking.
Sat Feb 28 19:19:56 -03 2026 [elapsed=13 sec] SERVICES2
Sat Feb 28 19:19:56 -03 2026 [elapsed=13 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Feb 28 19:20:00 -03 2026 [elapsed=17 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=1.56e+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
Sat Feb 28 19:21:29 -03 2026 [elapsed=106 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: 61.33 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Sat Feb 28 19:22:35 -03 2026 [elapsed=172 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Feb 28 19:22:59 -03 2026 [elapsed=196 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=41.2 IDLE
Sat Feb 28 19:22:59 -03 2026 [elapsed=196 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (4 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.0C)
Checking CCD plane: Z0=-200.00 DZDX=+466.00 DZDY=-406.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Feb 28 19:22:59 -03 2026 [elapsed=196 sec] WEATHER
status weather: C 28.2C 20% 18/20kph@232 DP24.4C/-62C/d IDLE
...OK
Sat Feb 28 19:23:00 -03 2026 [elapsed=197 sec] MET
status...OK
met: c=N o=Y Ro8d Co7d Wo22d Ho22d To22d Do22d IDLE
Sat Feb 28 19:23:00 -03 2026 [elapsed=197 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Feb 28 19:23:02 -03 2026 [elapsed=199 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 90.01 -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 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 7 0.1%
A 0.050s 110 1.2%
A 0.081s 390 4.3%
A 0.111s 729 8.0%
A 0.141s 1206 13.2%
A 0.172s 1775 19.4%
A 0.202s 2489 27.2%
A 0.232s 3286 35.9%
A 0.263s 4196 45.8%
A 0.293s 5142 56.2%
A 0.323s 6011 65.7%
A 0.353s 6780 74.1%
A 0.384s 7430 81.2%
A 0.414s 8010 87.5%
A 0.444s 8459 92.4%
A 0.475s 8803 96.2%
A 0.505s 9035 98.7%
A 0.536s 9140 99.8%
A 0.566s 9155 100.0%
B 0.020s 1 0.0%
B 0.050s 89 1.0%
B 0.081s 378 4.1%
B 0.111s 734 8.0%
B 0.141s 1190 13.0%
B 0.172s 1784 19.5%
B 0.202s 2469 27.0%
B 0.232s 3253 35.5%
B 0.263s 4172 45.6%
B 0.293s 5113 55.9%
B 0.323s 5994 65.5%
B 0.354s 6781 74.1%
B 0.384s 7430 81.2%
B 0.414s 8010 87.5%
B 0.445s 8460 92.4%
B 0.475s 8790 96.0%
B 0.505s 9030 98.6%
B 0.536s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9055 98.9%
A 0.081s 8771 95.8%
A 0.111s 8425 92.0%
A 0.141s 7958 86.9%
A 0.172s 7376 80.6%
A 0.202s 6691 73.1%
A 0.232s 5897 64.4%
A 0.263s 4982 54.4%
A 0.293s 4051 44.3%
A 0.323s 3165 34.6%
A 0.354s 2379 26.0%
A 0.384s 1717 18.8%
A 0.414s 1140 12.5%
A 0.445s 703 7.7%
A 0.475s 357 3.9%
A 0.505s 127 1.4%
A 0.536s 14 0.2%
A 0.566s -2 0.0%
B 0.020s 9147 99.9%
B 0.050s 9031 98.7%
B 0.081s 8761 95.7%
B 0.111s 8405 91.8%
B 0.141s 7942 86.8%
B 0.172s 7357 80.4%
B 0.202s 6663 72.8%
B 0.232s 5871 64.1%
B 0.262s 4960 54.2%
B 0.293s 4005 43.8%
B 0.323s 3140 34.3%
B 0.353s 2352 25.7%
B 0.384s 1698 18.5%
B 0.414s 1135 12.4%
B 0.444s 674 7.4%
B 0.475s 342 3.7%
B 0.505s 122 1.3%
B 0.535s 6 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 0.566 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=1.22e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9901 IDLE
Sat Feb 28 19:23:36 -03 2026 [elapsed=233 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=41.2 IDLE
taking preflight exposures:
acam...OK
acam image:
156M Feb 28 19:23 /atlas/obs/04a/61100/04a61100e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Feb 28 19:23:59 -03 2026 [elapsed=256 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (38 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Feb 28 19:23:59 -03 2026 [elapsed=256 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61099.93332926|info|galildriver|using focus model: foc=9830+(3.50)*26.5+(-0.35)*60.3=9901.7
61099.93333393|info|galildriver|o 3 IN | cass: 6103513 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53270633 9901 um b=0f [cmd]
bestfocus for o...OK
Sat Feb 28 19:24:01 -03 2026 [elapsed=258 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Feb 28 19:24:34 -03 2026 [elapsed=291 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.
Sat Feb 28 19:24:35 -03 2026 [elapsed=292 sec] Happy observing!
Sat Feb 28 19:24:35 -03 2026 [elapsed=292 sec] Preflight took 292 seconds to complete.
Sat Feb 28 19:24:35 -03 2026 [elapsed=292 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 0.051s 110 1.2% A 0.081s 385 4.2% A 0.111s 717 7.8% A 0.141s 1181 12.9% A 0.171s 1762 19.2% A 0.202s 2441 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.292s 5078 55.5% A 0.323s 5963 65.1% A 0.353s 6757 73.8% A 0.383s 7412 81.0% A 0.413s 7992 87.3% A 0.443s 8445 92.3% A 0.473s 8767 95.8% A 0.504s 9018 98.5% A 0.534s 9135 99.8% A 0.564s 9151 100.0% B 0.020s 2 0.0% B 0.050s 120 1.3% B 0.081s 381 4.2% B 0.111s 742 8.1% B 0.141s 1218 13.3% B 0.171s 1774 19.4% B 0.202s 2467 26.9% B 0.232s 3268 35.7% B 0.262s 4167 45.5% B 0.292s 5103 55.7% B 0.323s 5988 65.4% B 0.353s 6773 74.0% B 0.383s 7438 81.3% B 0.413s 8001 87.4% B 0.443s 8455 92.4% B 0.474s 8795 96.1% B 0.504s 9023 98.6% B 0.534s 9138 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9046 98.8% A 0.081s 8774 95.8% A 0.111s 8422 92.0% A 0.141s 7959 86.9% A 0.171s 7399 80.8% A 0.201s 6712 73.3% A 0.232s 5924 64.7% A 0.262s 5007 54.7% A 0.292s 4067 44.4% A 0.322s 3195 34.9% A 0.352s 2404 26.3% A 0.383s 1737 19.0% A 0.413s 1162 12.7% A 0.443s 707 7.7% A 0.473s 369 4.0% A 0.504s 130 1.4% A 0.534s 17 0.2% A 0.564s 4 0.0% B 0.020s 9145 99.9% B 0.050s 9025 98.6% B 0.081s 8780 95.9% B 0.111s 8434 92.1% B 0.141s 7969 87.1% B 0.171s 7399 80.8% B 0.202s 6713 73.3% B 0.232s 5921 64.7% B 0.262s 5009 54.7% B 0.292s 4082 44.6% B 0.323s 3192 34.9% B 0.353s 2415 26.4% B 0.383s 1727 18.9% B 0.414s 1161 12.7% B 0.444s 712 7.8% B 0.474s 365 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.565s 0 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R