CHL Preflight Night 61090
Executing preflight for 61090 at Wed Feb 18 19:30:17 -03 2026.
Log can be found in /atlas/obs/04/61090/preflight.dat.
Setting donefile '/atlas/obs/04/61090/preflight_complete.20260218223017.11342' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260218223017.11342.
Wed Feb 18 19:30:17 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Feb 18 19:30:17 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [2a284752-0165-4040-895c-a9e2d08b1b29;1800]
Wed Feb 18 19:30:17 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Wed Feb 18 19:30:18 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Wed Feb 18 19:30:18 -03 2026 [elapsed=1 sec] auxcam is disabled.
Wed Feb 18 19:30:18 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Feb 18 19:30:18 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1771453813
OK
Wed Feb 18 19:30:18 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Feb 18 19:30:18 -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
Wed Feb 18 19:30:20 -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
Wed Feb 18 19:30:20 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Feb 18 19:30:20 -03 2026 [elapsed=3 sec] CLOCKS
admin: Wed Feb 18 22:30:20 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 501 512 377 0.264 -0.092 0.116
+10.0.11.4 .GPS. 1 u 334 512 377 0.548 0.085 0.121
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 1030 1024 377 210.829 -1.423 2.628
-185.125.190.58 194.121.207.249 2 u 824 1024 377 217.029 -3.611 0.875
-alphyn.canonica 132.163.96.1 2 u 166 1024 377 151.974 1.207 1.149
+185.125.190.56 79.243.60.50 2 u 495 512 377 210.433 -1.124 0.800
Wed Feb 18 19:30:22 -03 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (5182GB)
200GB available in /atlas/red...OK (8983GB)
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 35G 37% /
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 5.1T 8.6T 38% /
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 436G 13T 4% /
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
Wed Feb 18 19:30:22 -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
Wed Feb 18 19:30:22 -03 2026 [elapsed=5 sec] Disabling mount tracking.
Wed Feb 18 19:30:22 -03 2026 [elapsed=5 sec] Closing dome.
Wed Feb 18 19:30:22 -03 2026 [elapsed=5 sec] SERVICES2
Wed Feb 18 19:30:22 -03 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Feb 18 19:30:27 -03 2026 [elapsed=10 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=1.6e+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 Feb 18 19:33:44 -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: 54.55 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Wed Feb 18 19:34:51 -03 2026 [elapsed=274 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Feb 18 19:35:16 -03 2026 [elapsed=299 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Wed Feb 18 19:35:16 -03 2026 [elapsed=299 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-52.6C)
Checking CCD plane: Z0=-201.00 DZDX=+458.00 DZDY=-409.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Feb 18 19:35:16 -03 2026 [elapsed=299 sec] WEATHER
status weather: C 28.8C 20% 22/31kph@225 DP23.2C/-66C/d IDLE
...OK
Wed Feb 18 19:35:16 -03 2026 [elapsed=299 sec] MET
status...OK
met: c=N o=Y Ro12d Co11d Wo12d Ho12d To12d Do12d IDLE
Wed Feb 18 19:35:16 -03 2026 [elapsed=299 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Feb 18 19:35:16 -03 2026 [elapsed=299 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 83.22 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 7 0.1%
A 0.051s 114 1.2%
A 0.081s 393 4.3%
A 0.111s 729 8.0%
A 0.142s 1220 13.3%
A 0.172s 1794 19.6%
A 0.202s 2488 27.2%
A 0.233s 3290 35.9%
A 0.263s 4194 45.8%
A 0.293s 5143 56.2%
A 0.323s 6010 65.7%
A 0.354s 6798 74.3%
A 0.384s 7452 81.4%
A 0.414s 8027 87.7%
A 0.445s 8470 92.5%
A 0.475s 8804 96.2%
A 0.505s 9035 98.7%
A 0.536s 9139 99.8%
A 0.566s 9154 100.0%
B 0.020s 1 0.0%
B 0.051s 90 1.0%
B 0.081s 379 4.1%
B 0.111s 736 8.0%
B 0.141s 1193 13.0%
B 0.172s 1784 19.5%
B 0.202s 2470 27.0%
B 0.232s 3255 35.6%
B 0.263s 4171 45.6%
B 0.293s 5113 55.9%
B 0.323s 5996 65.5%
B 0.354s 6782 74.1%
B 0.384s 7429 81.2%
B 0.414s 8010 87.5%
B 0.445s 8473 92.6%
B 0.475s 8790 96.0%
B 0.505s 9036 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9058 99.0%
A 0.081s 8770 95.8%
A 0.111s 8426 92.0%
A 0.142s 7939 86.7%
A 0.172s 7357 80.4%
A 0.202s 6666 72.8%
A 0.233s 5871 64.1%
A 0.263s 4950 54.1%
A 0.293s 4022 43.9%
A 0.323s 3136 34.3%
A 0.354s 2379 26.0%
A 0.384s 1716 18.7%
A 0.414s 1126 12.3%
A 0.444s 692 7.6%
A 0.475s 358 3.9%
A 0.505s 129 1.4%
A 0.535s 10 0.1%
A 0.566s -3 0.0%
B 0.020s 9149 99.9%
B 0.050s 9045 98.8%
B 0.081s 8782 95.9%
B 0.111s 8429 92.1%
B 0.141s 7977 87.1%
B 0.172s 7397 80.8%
B 0.202s 6708 73.3%
B 0.232s 5926 64.7%
B 0.263s 5020 54.8%
B 0.293s 4061 44.4%
B 0.323s 3196 34.9%
B 0.354s 2376 26.0%
B 0.384s 1717 18.8%
B 0.415s 1152 12.6%
B 0.445s 687 7.5%
B 0.475s 360 3.9%
B 0.505s 128 1.4%
B 0.536s 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 0.536 seconds.
Shutter A closed to 0.0 percent in 0.566 seconds.
Shutter B closed to 0.1 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.16e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9912 IDLE
Wed Feb 18 19:35:51 -03 2026 [elapsed=334 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Feb 18 19:36 /atlas/obs/04a/61090/04a61090e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Feb 18 19:36:14 -03 2026 [elapsed=357 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (58 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Feb 18 19:36:14 -03 2026 [elapsed=357 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61089.94183604|info|galildriver|using focus model: foc=9830+(3.50)*28.8+(-0.35)*60.2=9909.7
61089.94184106|info|galildriver|o 3 IN | cass: 6102672 30.51 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53268415 9912 um b=8f M [focus]
61089.94185122|info|galildriver|o 3 IN | cass: 6102669 30.51 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53268756 9910 um b=0f [cmd]
bestfocus for o...OK
Wed Feb 18 19:36:16 -03 2026 [elapsed=359 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Feb 18 19:36:50 -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 Feb 18 19:36:51 -03 2026 [elapsed=394 sec] Happy observing!
Wed Feb 18 19:36:51 -03 2026 [elapsed=394 sec] Preflight took 394 seconds to complete.
Wed Feb 18 19:36:51 -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 5 0.1% A 0.050s 124 1.4% A 0.081s 391 4.3% A 0.111s 744 8.1% A 0.141s 1214 13.3% A 0.171s 1800 19.7% A 0.202s 2490 27.2% A 0.232s 3292 36.0% A 0.262s 4205 45.9% A 0.292s 5136 56.1% A 0.323s 6018 65.7% A 0.353s 6803 74.3% A 0.383s 7451 81.4% A 0.413s 8025 87.7% A 0.443s 8472 92.5% A 0.474s 8788 96.0% A 0.504s 9029 98.6% A 0.534s 9140 99.8% A 0.564s 9153 100.0% B 0.020s 1 0.0% B 0.050s 123 1.3% B 0.081s 387 4.2% B 0.111s 743 8.1% B 0.141s 1220 13.3% B 0.171s 1795 19.6% B 0.202s 2491 27.2% B 0.232s 3296 36.0% B 0.262s 4197 45.8% B 0.292s 5104 55.8% B 0.323s 5989 65.4% B 0.353s 6771 74.0% B 0.383s 7439 81.3% B 0.413s 8001 87.4% B 0.444s 8456 92.4% B 0.474s 8795 96.1% B 0.504s 9024 98.6% B 0.534s 9139 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9047 98.8% A 0.081s 8780 95.9% A 0.111s 8414 91.9% A 0.141s 7962 87.0% A 0.172s 7382 80.6% A 0.202s 6690 73.1% A 0.232s 5900 64.5% A 0.262s 4980 54.4% A 0.293s 4041 44.1% A 0.323s 3169 34.6% A 0.353s 2382 26.0% A 0.383s 1713 18.7% A 0.414s 1143 12.5% A 0.444s 692 7.6% A 0.474s 359 3.9% A 0.504s 124 1.4% A 0.535s 14 0.2% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9017 98.5% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7950 86.8% B 0.171s 7377 80.6% B 0.202s 6688 73.1% B 0.232s 5893 64.4% B 0.262s 4981 54.4% B 0.292s 4050 44.2% B 0.323s 3162 34.5% B 0.353s 2393 26.1% B 0.383s 1704 18.6% B 0.414s 1146 12.5% B 0.444s 699 7.6% B 0.474s 355 3.9% B 0.504s 131 1.4% B 0.535s 14 0.2% B 0.565s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R