CHL Preflight Night 61092
Executing preflight for 61092 at Fri Feb 20 19:28:13 -03 2026.
Log can be found in /atlas/obs/04/61092/preflight.dat.
Setting donefile '/atlas/obs/04/61092/preflight_complete.20260220222813.11342' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260220222813.11342.
Fri Feb 20 19:28:13 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Feb 20 19:28:13 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [4f6c114b-02ae-48f4-95c7-58a89d5801dc;1800]
Fri Feb 20 19:28:13 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Fri Feb 20 19:28:14 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Fri Feb 20 19:28:14 -03 2026 [elapsed=1 sec] auxcam is disabled.
Fri Feb 20 19:28:14 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Feb 20 19:28:14 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1771626493
OK
Fri Feb 20 19:28:14 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Feb 20 19:28:14 -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
Fri Feb 20 19:28:16 -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
Fri Feb 20 19:28:16 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Feb 20 19:28:16 -03 2026 [elapsed=3 sec] CLOCKS
admin: Fri Feb 20 22:28:16 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 72 1024 377 0.256 -1.071 1.100
+10.0.11.4 .GPS. 1 u 37 1024 377 0.604 -0.934 1.116
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 832 1024 377 225.586 -9.691 1.658
-185.125.190.58 194.121.207.249 2 u 1008 1024 377 219.593 -5.404 0.533
+alphyn.canonica 132.163.96.1 2 u 58 1024 377 152.073 0.893 1.827
-185.125.190.56 79.243.60.50 2 u 921 1024 377 225.985 -9.336 2.320
Fri Feb 20 19:28:17 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (5169GB)
200GB available in /atlas/red...OK (8975GB)
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 5.1T 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
Fri Feb 20 19:28:17 -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
Fri Feb 20 19:28:17 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Fri Feb 20 19:28:18 -03 2026 [elapsed=5 sec] Closing dome.
Fri Feb 20 19:28:22 -03 2026 [elapsed=9 sec] SERVICES2
Fri Feb 20 19:28:22 -03 2026 [elapsed=9 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Feb 20 19:28:27 -03 2026 [elapsed=14 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
Fri Feb 20 19:31:39 -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: 55.99 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Fri Feb 20 19:32:44 -03 2026 [elapsed=271 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Feb 20 19:33:09 -03 2026 [elapsed=296 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=41.6 IDLE
Fri Feb 20 19:33:09 -03 2026 [elapsed=296 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (0 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.1C)
Checking CCD plane: Z0=-199.00 DZDX=+465.00 DZDY=-408.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri Feb 20 19:33:09 -03 2026 [elapsed=296 sec] WEATHER
status weather: C 26.5C 33% 12/19kph@271 DP16.0C/-68C/d IDLE
...OK
Fri Feb 20 19:33:09 -03 2026 [elapsed=296 sec] MET
status...OK
met: c=N o=N Ro18h Cx0 Wo14d Ho14d To14d Do14d wait C IDLE
Fri Feb 20 19:33:09 -03 2026 [elapsed=296 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Feb 20 19:33:09 -03 2026 [elapsed=296 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 84.67 -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 -2 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 9 0.1%
A 0.051s 114 1.2%
A 0.081s 403 4.4%
A 0.112s 741 8.1%
A 0.142s 1221 13.3%
A 0.172s 1797 19.6%
A 0.202s 2493 27.2%
A 0.233s 3290 35.9%
A 0.263s 4190 45.8%
A 0.293s 5140 56.2%
A 0.324s 6012 65.7%
A 0.354s 6804 74.3%
A 0.384s 7451 81.4%
A 0.415s 8025 87.7%
A 0.445s 8481 92.6%
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 3 0.0%
B 0.051s 94 1.0%
B 0.081s 378 4.1%
B 0.111s 749 8.2%
B 0.141s 1207 13.2%
B 0.172s 1803 19.7%
B 0.202s 2491 27.2%
B 0.232s 3281 35.8%
B 0.263s 4201 45.9%
B 0.293s 5144 56.2%
B 0.323s 6021 65.8%
B 0.354s 6803 74.3%
B 0.384s 7449 81.4%
B 0.414s 8027 87.7%
B 0.445s 8471 92.5%
B 0.475s 8800 96.1%
B 0.505s 9036 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9044 98.8%
A 0.081s 8760 95.7%
A 0.111s 8413 91.9%
A 0.142s 7941 86.7%
A 0.172s 7357 80.4%
A 0.202s 6668 72.8%
A 0.233s 5870 64.1%
A 0.263s 4946 54.0%
A 0.293s 3996 43.7%
A 0.324s 3110 34.0%
A 0.355s 2336 25.5%
A 0.394s 1634 17.9%
A 0.437s 873 9.5%
A 0.467s 416 4.5%
A 0.497s 162 1.8%
A 0.528s 27 0.3%
A 0.558s -3 0.0%
B 0.020s 9147 99.9%
B 0.050s 9038 98.7%
B 0.081s 8769 95.8%
B 0.111s 8416 91.9%
B 0.141s 7960 87.0%
B 0.172s 7377 80.6%
B 0.202s 6686 73.0%
B 0.232s 5898 64.4%
B 0.263s 4989 54.5%
B 0.293s 4032 44.0%
B 0.323s 3140 34.3%
B 0.354s 2352 25.7%
B 0.384s 1698 18.5%
B 0.414s 1134 12.4%
B 0.445s 673 7.4%
B 0.475s 352 3.8%
B 0.505s 120 1.3%
B 0.536s 5 0.1%
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 0.0 percent in 0.558 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=9898 IDLE
Fri Feb 20 19:33:45 -03 2026 [elapsed=332 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=41.6 IDLE
taking preflight exposures:
acam...OK
acam image:
156M Feb 20 19:34 /atlas/obs/04a/61092/04a61092e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Feb 20 19:34:07 -03 2026 [elapsed=354 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (21 seconds old)
OTA humidity level...OK (9%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Feb 20 19:34:07 -03 2026 [elapsed=354 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61091.94036788|info|galildriver|using focus model: foc=9830+(3.50)*25.8+(-0.35)*60.2=9899.2
61091.94037256|info|galildriver|o 3 IN | cass: 6104112 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53271117 9899 um b=0f [cmd]
bestfocus for o...OK
Fri Feb 20 19:34:09 -03 2026 [elapsed=356 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Feb 20 19:34:42 -03 2026 [elapsed=389 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.
Fri Feb 20 19:34:43 -03 2026 [elapsed=390 sec] Happy observing!
Fri Feb 20 19:34:43 -03 2026 [elapsed=390 sec] Preflight took 390 seconds to complete.
Fri Feb 20 19:34:43 -03 2026 [elapsed=390 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 117 1.3% A 0.081s 383 4.2% A 0.111s 730 8.0% A 0.141s 1199 13.1% A 0.171s 1779 19.4% A 0.202s 2465 26.9% A 0.232s 3265 35.7% A 0.262s 4174 45.6% A 0.292s 5106 55.8% A 0.322s 5991 65.4% A 0.353s 6779 74.1% A 0.383s 7431 81.2% A 0.413s 7991 87.3% A 0.443s 8446 92.3% A 0.473s 8779 95.9% A 0.504s 9023 98.6% A 0.534s 9137 99.8% A 0.564s 9152 100.0% B 0.020s 2 0.0% B 0.050s 111 1.2% B 0.081s 379 4.1% B 0.111s 713 7.8% B 0.141s 1185 12.9% B 0.171s 1751 19.1% B 0.201s 2442 26.7% B 0.232s 3240 35.4% B 0.262s 4137 45.2% B 0.292s 5073 55.4% B 0.322s 5960 65.1% B 0.352s 6748 73.7% B 0.383s 7420 81.1% B 0.413s 7986 87.2% B 0.443s 8444 92.2% B 0.473s 8786 96.0% B 0.503s 9012 98.4% B 0.534s 9133 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9049 98.9% A 0.081s 8781 95.9% A 0.111s 8427 92.1% A 0.141s 7963 87.0% A 0.171s 7383 80.7% A 0.202s 6691 73.1% A 0.232s 5901 64.5% A 0.262s 4980 54.4% A 0.292s 4042 44.2% A 0.323s 3170 34.6% A 0.353s 2382 26.0% A 0.383s 1715 18.7% A 0.414s 1146 12.5% A 0.444s 693 7.6% A 0.474s 360 3.9% A 0.504s 125 1.4% A 0.535s 15 0.2% A 0.565s 3 0.0% B 0.020s 9143 99.9% B 0.050s 9015 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.171s 7378 80.6% B 0.201s 6686 73.0% B 0.232s 5891 64.4% B 0.262s 4981 54.4% B 0.292s 4053 44.3% B 0.322s 3163 34.6% B 0.353s 2390 26.1% B 0.383s 1703 18.6% B 0.413s 1148 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