CHL Preflight Night 61082
Executing preflight for 61082 at Tue Feb 10 19:37:38 -03 2026.
Log can be found in /atlas/obs/04/61082/preflight.dat.
Setting donefile '/atlas/obs/04/61082/preflight_complete.20260210223738.6074' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260210223738.6074.
Tue Feb 10 19:37:38 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Feb 10 19:37:38 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [6a212aac-720d-474e-83ac-6d9e2a01a300;1800]
Tue Feb 10 19:37:38 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue Feb 10 19:37:38 -03 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue Feb 10 19:37:38 -03 2026 [elapsed=0 sec] auxcam is disabled.
Tue Feb 10 19:37:38 -03 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Tue Feb 10 19:37:38 -03 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1770763056
OK
Tue Feb 10 19:37:39 -03 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Tue Feb 10 19:37:39 -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 10 19:37:40 -03 2026 [elapsed=2 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 10 19:37:41 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Feb 10 19:37:41 -03 2026 [elapsed=3 sec] CLOCKS
admin: Tue Feb 10 22:37:41 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 233 1024 377 0.341 0.233 0.347
+10.0.11.4 .GPS. 1 u 131 1024 377 0.571 0.498 0.214
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 802 1024 377 222.117 -7.065 0.554
-185.125.190.58 194.121.207.249 2 u 738 1024 377 221.929 -6.424 2.377
+alphyn.canonica 132.163.96.1 2 u 227 1024 377 157.619 -1.408 0.982
-185.125.190.56 79.243.60.50 2 u 896 1024 377 221.489 -6.110 0.460
Tue Feb 10 19:37:42 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (5295GB)
200GB available in /atlas/red...OK (9185GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.2T 5.1T 51% /
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 4.9T 8.8T 36% /
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 435G 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 10 19:37:42 -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
Tue Feb 10 19:37:42 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Tue Feb 10 19:37:43 -03 2026 [elapsed=5 sec] SERVICES2
Tue Feb 10 19:37:43 -03 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Feb 10 19:37:47 -03 2026 [elapsed=9 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=1.49e+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
Tue Feb 10 19:41:01 -03 2026 [elapsed=203 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: 48.48 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Tue Feb 10 19:42:06 -03 2026 [elapsed=268 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Feb 10 19:42:31 -03 2026 [elapsed=293 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Tue Feb 10 19:42:31 -03 2026 [elapsed=293 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 (-53.2C)
Checking CCD plane: Z0=-200.00 DZDX=+461.00 DZDY=-410.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Feb 10 19:42:31 -03 2026 [elapsed=293 sec] WEATHER
status weather: C 27.2C 29% 11/20kph@284 DP19.2C/-18C/d IDLE
...OK
Tue Feb 10 19:42:31 -03 2026 [elapsed=293 sec] MET
status...OK
met: c=N o=Y Ro4d Co3d Wo4d Ho4d To4d Do4d IDLE
Tue Feb 10 19:42:32 -03 2026 [elapsed=294 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Feb 10 19:42:32 -03 2026 [elapsed=294 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 77.16 -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 1 0.0mm 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 8 0.1%
A 0.051s 109 1.2%
A 0.081s 391 4.3%
A 0.111s 728 8.0%
A 0.141s 1204 13.2%
A 0.172s 1775 19.4%
A 0.202s 2492 27.2%
A 0.233s 3291 36.0%
A 0.263s 4190 45.8%
A 0.293s 5138 56.1%
A 0.324s 6012 65.7%
A 0.354s 6806 74.4%
A 0.384s 7452 81.4%
A 0.415s 8024 87.7%
A 0.445s 8469 92.5%
A 0.475s 8802 96.2%
A 0.505s 9034 98.7%
A 0.536s 9140 99.8%
A 0.566s 9156 100.0%
B 0.020s 1 0.0%
B 0.050s 90 1.0%
B 0.081s 376 4.1%
B 0.111s 722 7.9%
B 0.141s 1190 13.0%
B 0.172s 1783 19.5%
B 0.202s 2468 27.0%
B 0.233s 3253 35.5%
B 0.263s 4170 45.6%
B 0.293s 5112 55.8%
B 0.324s 5994 65.5%
B 0.354s 6782 74.1%
B 0.384s 7429 81.2%
B 0.415s 8010 87.5%
B 0.445s 8459 92.4%
B 0.475s 8799 96.1%
B 0.506s 9037 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9052 98.9%
A 0.081s 8771 95.8%
A 0.111s 8426 92.0%
A 0.141s 7958 86.9%
A 0.172s 7379 80.6%
A 0.202s 6692 73.1%
A 0.232s 5895 64.4%
A 0.263s 4978 54.4%
A 0.293s 4053 44.3%
A 0.323s 3167 34.6%
A 0.354s 2380 26.0%
A 0.384s 1694 18.5%
A 0.414s 1124 12.3%
A 0.445s 703 7.7%
A 0.475s 348 3.8%
A 0.506s 123 1.3%
A 0.536s 11 0.1%
A 0.566s -4 0.0%
B 0.020s 9147 99.9%
B 0.051s 9045 98.8%
B 0.081s 8770 95.8%
B 0.112s 8417 91.9%
B 0.142s 7960 87.0%
B 0.172s 7377 80.6%
B 0.202s 6686 73.0%
B 0.233s 5898 64.4%
B 0.263s 4989 54.5%
B 0.293s 4034 44.1%
B 0.324s 3166 34.6%
B 0.354s 2374 25.9%
B 0.384s 1718 18.8%
B 0.414s 1151 12.6%
B 0.445s 686 7.5%
B 0.475s 360 3.9%
B 0.505s 126 1.4%
B 0.536s 6 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 0.566 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=1.19e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9899 IDLE
Tue Feb 10 19:43:06 -03 2026 [elapsed=328 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Feb 10 19:43 /atlas/obs/04a/61082/04a61082e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Feb 10 19:43:29 -03 2026 [elapsed=351 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (43 seconds old)
OTA humidity level...OK (8%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Feb 10 19:43:29 -03 2026 [elapsed=351 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61081.94686917|info|galildriver|using focus model: foc=9830+(3.50)*25.8+(-0.35)*60.2=9899.2
61081.94687385|info|galildriver|o 3 IN | cass: 6104264 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53271030 9899 um b=0f [cmd]
bestfocus for o...OK
Tue Feb 10 19:43:30 -03 2026 [elapsed=352 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Feb 10 19:44:04 -03 2026 [elapsed=386 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 10 19:44:05 -03 2026 [elapsed=387 sec] Happy observing!
Tue Feb 10 19:44:05 -03 2026 [elapsed=387 sec] Preflight took 387 seconds to complete.
Tue Feb 10 19:44:05 -03 2026 [elapsed=387 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 2 0.0% A 0.051s 110 1.2% A 0.081s 373 4.1% A 0.111s 717 7.8% A 0.141s 1181 12.9% A 0.171s 1759 19.2% A 0.202s 2441 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5078 55.5% A 0.322s 5963 65.1% A 0.353s 6756 73.8% A 0.383s 7412 81.0% A 0.413s 7973 87.1% A 0.443s 8434 92.1% A 0.473s 8770 95.8% A 0.503s 9017 98.5% A 0.534s 9136 99.8% A 0.564s 9152 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 380 4.2% B 0.111s 729 8.0% B 0.141s 1203 13.1% B 0.171s 1774 19.4% B 0.202s 2468 27.0% B 0.232s 3268 35.7% B 0.262s 4165 45.5% B 0.292s 5105 55.8% 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 8456 92.4% B 0.474s 8795 96.1% B 0.504s 9018 98.5% B 0.534s 9135 99.8% B 0.564s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9156 100.0% A 0.050s 9056 98.9% A 0.081s 8793 96.1% A 0.111s 8443 92.2% A 0.141s 7983 87.2% A 0.171s 7405 80.9% A 0.201s 6717 73.4% A 0.232s 5931 64.8% A 0.262s 5014 54.8% A 0.292s 4073 44.5% A 0.322s 3200 35.0% A 0.353s 2404 26.3% A 0.383s 1735 19.0% A 0.413s 1162 12.7% A 0.443s 717 7.8% A 0.473s 379 4.1% A 0.503s 136 1.5% A 0.534s 19 0.2% A 0.564s 4 0.0% B 0.020s 9143 99.9% B 0.050s 9009 98.4% B 0.081s 8761 95.7% B 0.111s 8407 91.8% B 0.141s 7934 86.7% B 0.171s 7358 80.4% B 0.202s 6665 72.8% B 0.232s 5865 64.1% B 0.262s 4951 54.1% B 0.292s 4052 44.3% B 0.323s 3164 34.6% B 0.353s 2370 25.9% B 0.383s 1684 18.4% B 0.414s 1131 12.4% B 0.444s 699 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 15 0.2% B 0.565s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R