CHL Preflight Night 61091
Executing preflight for 61091 at Thu Feb 19 19:29:18 -03 2026.
Log can be found in /atlas/obs/04/61091/preflight.dat.
Setting donefile '/atlas/obs/04/61091/preflight_complete.20260219222918.11342' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260219222918.11342.
Thu Feb 19 19:29:18 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Feb 19 19:29:18 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [f0b84ad1-3f03-4723-a26c-5465805af1bc;1800]
Thu Feb 19 19:29:18 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu Feb 19 19:29:19 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu Feb 19 19:29:19 -03 2026 [elapsed=1 sec] auxcam is disabled.
Thu Feb 19 19:29:19 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Feb 19 19:29:19 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1771540157
OK
Thu Feb 19 19:29:19 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Feb 19 19:29:19 -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
Thu Feb 19 19:29:21 -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
Thu Feb 19 19:29:21 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Feb 19 19:29:21 -03 2026 [elapsed=3 sec] CLOCKS
admin: Thu Feb 19 22:29:21 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 202 1024 377 0.338 0.748 0.087
+10.0.11.4 .GPS. 1 u 932 1024 377 0.591 0.905 0.115
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 60 1024 377 225.429 -7.673 0.641
-185.125.190.58 194.121.207.249 2 u 1 1024 377 227.222 -8.283 0.651
+alphyn.canonica 132.163.96.1 2 u 100 1024 377 150.124 3.045 2.164
-185.125.190.56 79.243.60.50 2 u 124 1024 377 225.338 -7.902 1.376
Thu Feb 19 19:29:22 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (5164GB)
200GB available in /atlas/red...OK (8765GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.3T 5.0T 52% /
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 36G 36% /
archon:/dev/loop0 105M 105M 0 100% /snap/core/17247
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
archon:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc1:/dev/md0p1 15T 5.3T 8.4T 39% /
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 613G 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
Thu Feb 19 19:29:22 -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
Thu Feb 19 19:29:22 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Thu Feb 19 19:29:22 -03 2026 [elapsed=4 sec] Closing dome.
Thu Feb 19 19:29:41 -03 2026 [elapsed=23 sec] SERVICES2
Thu Feb 19 19:29:41 -03 2026 [elapsed=23 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Feb 19 19:29:45 -03 2026 [elapsed=27 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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.54e+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 Feb 19 19:33:01 -03 2026 [elapsed=223 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: 55.35 -27.58, az/alt=324.52 +86.48 idle(e) IDLE
Thu Feb 19 19:34:08 -03 2026 [elapsed=290 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Feb 19 19:34:34 -03 2026 [elapsed=316 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=820/0 spi=38.1 IDLE
Thu Feb 19 19:34:34 -03 2026 [elapsed=316 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (6 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-52.7C)
Checking CCD plane: Z0=-201.00 DZDX=+463.00 DZDY=-405.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=820 IDLE
Thu Feb 19 19:34:34 -03 2026 [elapsed=316 sec] WEATHER
status weather: C 28.5C 27% 11/14kph@290 DP20.2C/-35C/d IDLE
...OK
Thu Feb 19 19:34:34 -03 2026 [elapsed=316 sec] MET
status...OK
met: c=N o=Y Ro13d Co12d Wo13d Ho13d To13d Do13d IDLE
Thu Feb 19 19:34:34 -03 2026 [elapsed=316 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Feb 19 19:34:34 -03 2026 [elapsed=316 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 84.03 -12.93, az/alt=59.86 +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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 7 0.1%
A 0.051s 120 1.3%
A 0.081s 403 4.4%
A 0.111s 741 8.1%
A 0.142s 1221 13.3%
A 0.172s 1796 19.6%
A 0.202s 2489 27.2%
A 0.233s 3291 36.0%
A 0.263s 4190 45.8%
A 0.293s 5141 56.2%
A 0.324s 6013 65.7%
A 0.354s 6800 74.3%
A 0.384s 7451 81.4%
A 0.415s 8026 87.7%
A 0.445s 8469 92.5%
A 0.475s 8813 96.3%
A 0.506s 9040 98.8%
A 0.536s 9142 99.9%
A 0.566s 9156 100.0%
B 0.020s 1 0.0%
B 0.051s 98 1.1%
B 0.081s 389 4.2%
B 0.111s 750 8.2%
B 0.142s 1209 13.2%
B 0.172s 1804 19.7%
B 0.202s 2493 27.2%
B 0.233s 3281 35.8%
B 0.263s 4203 45.9%
B 0.294s 5145 56.2%
B 0.324s 6022 65.8%
B 0.354s 6805 74.3%
B 0.384s 7450 81.4%
B 0.415s 8043 87.9%
B 0.445s 8484 92.7%
B 0.476s 8810 96.2%
B 0.506s 9042 98.8%
B 0.536s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9046 98.8%
A 0.081s 8758 95.7%
A 0.111s 8414 91.9%
A 0.141s 7939 86.7%
A 0.171s 7359 80.4%
A 0.202s 6668 72.8%
A 0.232s 5872 64.1%
A 0.263s 4948 54.1%
A 0.293s 4022 43.9%
A 0.323s 3138 34.3%
A 0.354s 2356 25.7%
A 0.384s 1696 18.5%
A 0.414s 1125 12.3%
A 0.445s 690 7.5%
A 0.475s 348 3.8%
A 0.505s 118 1.3%
A 0.536s 9 0.1%
B 0.020s 9146 99.9%
B 0.051s 9030 98.6%
B 0.081s 8762 95.7%
B 0.111s 8403 91.8%
B 0.142s 7927 86.6%
B 0.172s 7337 80.2%
B 0.202s 6663 72.8%
B 0.233s 5846 63.9%
B 0.263s 4958 54.2%
B 0.293s 3975 43.4%
B 0.323s 3115 34.0%
B 0.354s 2328 25.4%
B 0.384s 1698 18.5%
B 0.414s 1136 12.4%
B 0.445s 674 7.4%
B 0.475s 343 3.7%
B 0.505s 116 1.3%
B 0.536s 4 0.0%
A 0 0.0mm 15 N F R | B -2 -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 0.536 seconds.
Shutter B closed to 0.0 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.19e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9909 IDLE
Thu Feb 19 19:35:11 -03 2026 [elapsed=353 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=820/0 spi=38.1 IDLE
taking preflight exposures:
acam...OK
acam image:
156M Feb 19 19:35 /atlas/obs/04a/61091/04a61091e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Feb 19 19:35:33 -03 2026 [elapsed=375 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (17 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Feb 19 19:35:33 -03 2026 [elapsed=375 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61090.94136764|info|galildriver|using focus model: foc=9830+(3.50)*27.4+(-0.35)*60.2=9904.8
61090.94137266|info|galildriver|o 3 IN | cass: 6103349 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53268913 9910 um b=8f M [focus]
61090.94138281|info|galildriver|o 3 IN | cass: 6103355 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53269270 9908 um b=0f [cmd]
bestfocus for o...OK
Thu Feb 19 19:35:35 -03 2026 [elapsed=377 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Feb 19 19:36:08 -03 2026 [elapsed=410 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 Feb 19 19:36:09 -03 2026 [elapsed=411 sec] Happy observing!
Thu Feb 19 19:36:09 -03 2026 [elapsed=411 sec] Preflight took 411 seconds to complete.
Thu Feb 19 19:36:09 -03 2026 [elapsed=411 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 5 0.1% A 0.050s 124 1.4% A 0.081s 391 4.3% A 0.111s 744 8.1% A 0.141s 1215 13.3% A 0.171s 1800 19.7% A 0.202s 2490 27.2% A 0.232s 3293 36.0% A 0.262s 4205 45.9% A 0.292s 5136 56.1% A 0.322s 6019 65.8% A 0.353s 6803 74.3% A 0.383s 7430 81.2% A 0.413s 8008 87.5% A 0.443s 8459 92.4% A 0.473s 8788 96.0% A 0.504s 9029 98.6% A 0.534s 9139 99.8% A 0.564s 9152 100.0% B 0.020s 0 0.0% B 0.050s 113 1.2% B 0.080s 378 4.1% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1773 19.4% B 0.201s 2466 26.9% B 0.232s 3266 35.7% B 0.262s 4167 45.5% B 0.292s 5103 55.7% B 0.322s 5987 65.4% B 0.353s 6771 74.0% B 0.383s 7440 81.3% B 0.413s 8002 87.4% B 0.443s 8457 92.4% B 0.474s 8786 96.0% B 0.504s 9018 98.5% B 0.534s 9136 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9154 100.0% A 0.051s 9049 98.9% A 0.081s 8790 96.0% A 0.111s 8440 92.2% A 0.141s 7980 87.2% A 0.171s 7404 80.9% A 0.202s 6714 73.3% A 0.232s 5928 64.8% A 0.262s 5012 54.8% A 0.292s 4071 44.5% A 0.322s 3198 34.9% A 0.352s 2406 26.3% A 0.383s 1755 19.2% A 0.413s 1178 12.9% A 0.443s 718 7.8% A 0.473s 378 4.1% A 0.503s 137 1.5% A 0.534s 18 0.2% A 0.564s 4 0.0% B 0.020s 9141 99.9% B 0.050s 9010 98.4% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7951 86.9% B 0.171s 7356 80.4% B 0.202s 6685 73.0% B 0.232s 5892 64.4% B 0.262s 4982 54.4% B 0.292s 4053 44.3% B 0.323s 3161 34.5% B 0.353s 2391 26.1% B 0.383s 1705 18.6% B 0.413s 1147 12.5% B 0.443s 699 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.564s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R