CHL Preflight Night 61075
Executing preflight for 61075 at Tue Feb 3 19:42:51 -03 2026.
Log can be found in /atlas/obs/04/61075/preflight.dat.
Setting donefile '/atlas/obs/04/61075/preflight_complete.20260203224251.22499' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260203224251.22499.
Tue Feb 3 19:42:51 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Feb 3 19:42:51 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [1f4f425c-f171-407a-8d2e-606065327645;1800]
Tue Feb 3 19:42:51 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue Feb 3 19:42:52 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue Feb 3 19:42:52 -03 2026 [elapsed=1 sec] auxcam is disabled.
Tue Feb 3 19:42:52 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Feb 3 19:42:52 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1770158570
OK
Tue Feb 3 19:42:52 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Feb 3 19:42:52 -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
Tue Feb 3 19:42:54 -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
Tue Feb 3 19:42:54 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Feb 3 19:42:54 -03 2026 [elapsed=3 sec] CLOCKS
admin: Tue Feb 3 22:42:54 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 779 1024 377 0.340 -1.542 1.750
+10.0.11.4 .GPS. 1 u 384 1024 377 0.489 -1.418 0.413
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 87 1024 377 220.995 -8.366 0.880
-185.125.190.58 183.160.133.132 2 u 664 1024 377 220.090 -7.399 1.029
+alphyn.canonica 132.163.96.1 2 u 666 1024 125 159.133 -4.549 0.897
-185.125.190.56 194.121.207.249 2 u 613 1024 377 220.525 -7.630 0.618
Tue Feb 3 19:42:56 -03 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (5391GB)
200GB available in /atlas/red...OK (9307GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.1T 5.2T 50% /
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 4.8T 8.9T 35% /
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 434G 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
Tue Feb 3 19:42:56 -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 Feb 3 19:42:57 -03 2026 [elapsed=6 sec] Disabling mount tracking.
Tue Feb 3 19:42:57 -03 2026 [elapsed=6 sec] SERVICES2
Tue Feb 3 19:42:57 -03 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Feb 3 19:43:01 -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= 912kB time=00:00:29.18 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/OPEN (0%) IDLE
Tue Feb 3 19:45:52 -03 2026 [elapsed=181 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: 42.80 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Tue Feb 3 19:46:57 -03 2026 [elapsed=246 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Feb 3 19:47:22 -03 2026 [elapsed=271 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Tue Feb 3 19:47:22 -03 2026 [elapsed=271 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (7 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.4C)
Checking CCD plane: Z0=-199.00 DZDX=+459.00 DZDY=-411.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Feb 3 19:47:22 -03 2026 [elapsed=271 sec] WEATHER
status weather: C 24.7C 44% 12/18kph@266 DP11.5C/-52C/d IDLE
...OK
Tue Feb 3 19:47:22 -03 2026 [elapsed=271 sec] MET
status...OK
met: c=N o=Y Ro7d Co1d Wo48d Ho48d To48d Do8d IDLE
Tue Feb 3 19:47:22 -03 2026 [elapsed=271 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Feb 3 19:47:22 -03 2026 [elapsed=271 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 71.48 -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 9 0.1%
A 0.051s 121 1.3%
A 0.081s 401 4.4%
A 0.111s 743 8.1%
A 0.142s 1220 13.3%
A 0.172s 1793 19.6%
A 0.202s 2488 27.2%
A 0.233s 3290 35.9%
A 0.263s 4227 46.2%
A 0.294s 5171 56.5%
A 0.324s 6036 65.9%
A 0.354s 6824 74.5%
A 0.384s 7471 81.6%
A 0.415s 8046 87.9%
A 0.445s 8482 92.7%
A 0.475s 8813 96.3%
A 0.506s 9040 98.8%
A 0.536s 9141 99.9%
A 0.566s 9156 100.0%
B 0.020s 1 0.0%
B 0.050s 89 1.0%
B 0.081s 376 4.1%
B 0.111s 736 8.0%
B 0.141s 1191 13.0%
B 0.172s 1783 19.5%
B 0.202s 2470 27.0%
B 0.232s 3252 35.5%
B 0.263s 4201 45.9%
B 0.293s 5113 55.9%
B 0.323s 6021 65.8%
B 0.354s 6803 74.3%
B 0.384s 7448 81.4%
B 0.414s 8026 87.7%
B 0.445s 8471 92.5%
B 0.475s 8800 96.1%
B 0.505s 9036 98.7%
B 0.535s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9153 100.0%
A 0.051s 9053 98.9%
A 0.081s 8769 95.8%
A 0.111s 8428 92.1%
A 0.141s 7958 86.9%
A 0.172s 7375 80.6%
A 0.202s 6691 73.1%
A 0.232s 5896 64.4%
A 0.263s 4982 54.4%
A 0.293s 4053 44.3%
A 0.323s 3163 34.6%
A 0.353s 2381 26.0%
A 0.383s 1716 18.7%
A 0.414s 1141 12.5%
A 0.444s 704 7.7%
A 0.474s 359 3.9%
A 0.504s 129 1.4%
A 0.535s 12 0.1%
A 0.565s -3 0.0%
B 0.020s 9147 99.9%
B 0.051s 9038 98.7%
B 0.081s 8771 95.8%
B 0.111s 8417 91.9%
B 0.142s 7942 86.8%
B 0.172s 7376 80.6%
B 0.202s 6684 73.0%
B 0.232s 5872 64.1%
B 0.263s 4988 54.5%
B 0.293s 4032 44.0%
B 0.323s 3139 34.3%
B 0.354s 2351 25.7%
B 0.384s 1698 18.5%
B 0.414s 1134 12.4%
B 0.445s 674 7.4%
B 0.475s 360 3.9%
B 0.505s 127 1.4%
B 0.535s 7 0.1%
A 0 0.0mm 15 N F R | B -3 -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 0.535 seconds.
Shutter A closed to 0.0 percent in 0.565 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 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=9894 IDLE
Tue Feb 3 19:48:01 -03 2026 [elapsed=310 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:
156M Feb 3 19:48 /atlas/obs/04a/61075/04a61075e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Feb 3 19:48:24 -03 2026 [elapsed=333 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (68 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Feb 3 19:48:24 -03 2026 [elapsed=333 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61074.95028229|info|galildriver|using focus model: foc=9830+(3.50)*24.6+(-0.35)*60.3=9895.0
61074.95028697|info|galildriver|o 3 IN | cass: 6105543 30.53 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53271870 9895 um b=0f [cmd]
bestfocus for o...OK
Tue Feb 3 19:48:25 -03 2026 [elapsed=334 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Feb 3 19:48:58 -03 2026 [elapsed=367 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.
Tue Feb 3 19:49:00 -03 2026 [elapsed=369 sec] Happy observing!
Tue Feb 3 19:49:00 -03 2026 [elapsed=369 sec] Preflight took 369 seconds to complete.
Tue Feb 3 19:49:00 -03 2026 [elapsed=369 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 0.050s 110 1.2% A 0.081s 372 4.1% A 0.111s 718 7.8% A 0.141s 1181 12.9% A 0.172s 1759 19.2% A 0.202s 2441 26.7% A 0.232s 3237 35.4% A 0.262s 4144 45.3% A 0.292s 5077 55.5% A 0.323s 5964 65.2% A 0.353s 6756 73.8% A 0.383s 7411 81.0% A 0.413s 7992 87.3% A 0.443s 8446 92.3% A 0.474s 8779 95.9% A 0.504s 9023 98.6% A 0.534s 9139 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 120 1.3% B 0.080s 379 4.1% B 0.111s 728 8.0% B 0.141s 1203 13.1% B 0.171s 1773 19.4% B 0.201s 2467 26.9% B 0.232s 3270 35.7% B 0.262s 4166 45.5% B 0.292s 5104 55.8% B 0.323s 5987 65.4% B 0.353s 6773 74.0% B 0.383s 7439 81.3% B 0.413s 8001 87.4% B 0.443s 8456 92.4% B 0.474s 8795 96.1% B 0.504s 9023 98.6% B 0.534s 9138 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9048 98.8% A 0.081s 8781 95.9% A 0.111s 8429 92.1% A 0.141s 7963 87.0% A 0.171s 7384 80.7% A 0.201s 6692 73.1% A 0.232s 5901 64.5% A 0.262s 4981 54.4% A 0.292s 4043 44.2% A 0.322s 3170 34.6% A 0.353s 2382 26.0% A 0.383s 1715 18.7% A 0.413s 1144 12.5% A 0.443s 693 7.6% A 0.473s 369 4.0% A 0.504s 131 1.4% A 0.534s 16 0.2% A 0.564s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9016 98.5% B 0.081s 8770 95.8% B 0.111s 8419 92.0% B 0.141s 7951 86.9% B 0.171s 7378 80.6% B 0.201s 6687 73.1% B 0.232s 5919 64.7% B 0.262s 5011 54.7% B 0.292s 4082 44.6% B 0.322s 3191 34.9% B 0.352s 2416 26.4% B 0.383s 1722 18.8% B 0.413s 1162 12.7% B 0.443s 712 7.8% B 0.473s 364 4.0% B 0.504s 138 1.5% B 0.534s 16 0.2% B 0.564s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R