CHL Preflight Night 61144
Executing preflight for 61144 at Mon Apr 13 17:27:24 -04 2026.
Log can be found in /atlas/obs/04/61144/preflight.dat.
Setting donefile '/atlas/obs/04/61144/preflight_complete.20260413212724.11519' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260413212724.11519.
Mon Apr 13 17:27:24 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Apr 13 17:27:24 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [0952467c-a8a8-4823-996e-870fb490387c;1800]
Mon Apr 13 17:27:24 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Mon Apr 13 17:27:25 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Mon Apr 13 17:27:25 -04 2026 [elapsed=1 sec] auxcam is disabled.
Mon Apr 13 17:27:25 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Apr 13 17:27:25 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1776115636
OK
Mon Apr 13 17:27:25 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Apr 13 17:27:25 -04 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
Mon Apr 13 17:27:26 -04 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
Mon Apr 13 17:27:27 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Apr 13 17:27:27 -04 2026 [elapsed=3 sec] CLOCKS
admin: Mon Apr 13 21:27:27 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 104 128 377 0.176 0.358 0.796
+10.0.11.4 .GPS. 1 u 68 128 377 0.608 1.032 0.495
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 233 256 377 216.268 -3.799 3.005
-185.125.190.58 146.131.121.246 2 u 84 128 377 217.037 -3.773 2.072
+alphyn.canonica 132.163.96.1 2 u 126 128 377 163.374 1.943 1.003
-185.125.190.56 146.131.121.246 2 u 65 256 377 217.496 -2.815 3.808
Mon Apr 13 17:27:28 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3977GB)
200GB available in /atlas/red...OK (7595GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.5T 3.8T 63% /
admin:/dev/loop2 105M 105M 0 100% /snap/core/17272
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 20G 36G 36% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/loop1 105M 105M 0 100% /snap/core/17272
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 6.5T 7.3T 47% /
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/md0p1 15T 529G 13T 4% /
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 902G 13T 7% /
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 692G 13T 6% /
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
Mon Apr 13 17:27:28 -04 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
Mon Apr 13 17:27:28 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Mon Apr 13 17:27:28 -04 2026 [elapsed=4 sec] SERVICES2
Mon Apr 13 17:27:28 -04 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Apr 13 17:27:32 -04 2026 [elapsed=8 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=1.63e+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
Mon Apr 13 17:30:54 -04 2026 [elapsed=210 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: 92.02 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Mon Apr 13 17:31:59 -04 2026 [elapsed=275 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Apr 13 17:32:24 -04 2026 [elapsed=300 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=1/0 spi=39.3 IDLE
Mon Apr 13 17:32:24 -04 2026 [elapsed=300 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (5 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.8C)
Checking CCD plane: Z0=-197.00 DZDX=+467.00 DZDY=-411.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=1 IDLE
Mon Apr 13 17:32:24 -04 2026 [elapsed=300 sec] WEATHER
status weather: C 25.5C 25% 2/9kph@312 DP20.7C/-34C/d IDLE
...OK
Mon Apr 13 17:32:24 -04 2026 [elapsed=300 sec] MET
status...OK
met: c=N o=N Ro2d Cx0 Wo8d Ho8d To8d Do8d wait C IDLE
Mon Apr 13 17:32:25 -04 2026 [elapsed=301 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Apr 13 17:32:25 -04 2026 [elapsed=301 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 120.69 -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 -2 -0.1mm 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 7 0.1%
A 0.051s 114 1.2%
A 0.081s 391 4.3%
A 0.111s 729 8.0%
A 0.142s 1219 13.3%
A 0.172s 1793 19.6%
A 0.203s 2488 27.2%
A 0.233s 3290 35.9%
A 0.263s 4194 45.8%
A 0.293s 5141 56.2%
A 0.324s 6011 65.7%
A 0.354s 6802 74.3%
A 0.384s 7452 81.4%
A 0.415s 8028 87.7%
A 0.445s 8471 92.5%
A 0.475s 8803 96.2%
A 0.506s 9034 98.7%
A 0.536s 9140 99.8%
A 0.566s 9156 100.0%
B 0.020s 1 0.0%
B 0.050s 89 1.0%
B 0.081s 375 4.1%
B 0.111s 736 8.0%
B 0.141s 1191 13.0%
B 0.172s 1780 19.4%
B 0.202s 2469 27.0%
B 0.232s 3254 35.5%
B 0.263s 4170 45.6%
B 0.293s 5112 55.8%
B 0.323s 5995 65.5%
B 0.354s 6782 74.1%
B 0.384s 7430 81.2%
B 0.414s 8010 87.5%
B 0.445s 8459 92.4%
B 0.475s 8800 96.1%
B 0.505s 9037 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9056 98.9%
A 0.081s 8767 95.8%
A 0.111s 8425 92.0%
A 0.141s 7958 86.9%
A 0.172s 7373 80.5%
A 0.202s 6689 73.1%
A 0.232s 5896 64.4%
A 0.263s 4979 54.4%
A 0.293s 4051 44.3%
A 0.323s 3163 34.6%
A 0.353s 2379 26.0%
A 0.384s 1715 18.7%
A 0.414s 1141 12.5%
A 0.444s 704 7.7%
A 0.475s 357 3.9%
A 0.505s 129 1.4%
A 0.535s 10 0.1%
A 0.566s -5 0.0%
B 0.020s 9147 99.9%
B 0.051s 9035 98.7%
B 0.081s 8762 95.7%
B 0.111s 8406 91.8%
B 0.142s 7945 86.8%
B 0.172s 7358 80.4%
B 0.202s 6665 72.8%
B 0.232s 5873 64.2%
B 0.263s 4928 53.8%
B 0.293s 3977 43.4%
B 0.324s 3116 34.0%
B 0.354s 2326 25.4%
B 0.384s 1678 18.3%
B 0.414s 1119 12.2%
B 0.445s 662 7.2%
B 0.475s 342 3.7%
B 0.505s 121 1.3%
B 0.535s 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 0.566 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.18e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9889 IDLE
Mon Apr 13 17:33:01 -04 2026 [elapsed=337 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=1/0 spi=39.3 IDLE
taking preflight exposures:
acam...OK
acam image:
160M Apr 13 17:33 /atlas/obs/04a/61144/04a61144e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Apr 13 17:33:23 -04 2026 [elapsed=359 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (77 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Apr 13 17:33:23 -04 2026 [elapsed=359 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61143.89819524|info|galildriver|using focus model: foc=9830+(3.50)*23.2+(-0.35)*60.2=9890.1
61143.89819991|info|galildriver|o 3 IN | cass: 6105271 30.53 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53272964 9889 um b=0f [cmd]
bestfocus for o...OK
Mon Apr 13 17:33:25 -04 2026 [elapsed=361 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Apr 13 17:33:57 -04 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.
Mon Apr 13 17:33:59 -04 2026 [elapsed=395 sec] Happy observing!
Mon Apr 13 17:33:59 -04 2026 [elapsed=395 sec] Preflight took 395 seconds to complete.
Mon Apr 13 17:33:59 -04 2026 [elapsed=395 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 0.051s 122 1.3% A 0.082s 405 4.4% A 0.112s 762 8.3% A 0.143s 1231 13.4% A 0.173s 1843 20.1% A 0.203s 2538 27.7% A 0.234s 3350 36.6% A 0.264s 4265 46.6% A 0.295s 5191 56.7% A 0.325s 6078 66.4% A 0.356s 6843 74.8% A 0.386s 7513 82.1% A 0.417s 8071 88.2% A 0.447s 8507 92.9% A 0.478s 8828 96.4% A 0.508s 9049 98.9% A 0.538s 9146 99.9% B 0.020s 2 0.0% B 0.051s 110 1.2% B 0.081s 387 4.2% B 0.111s 741 8.1% B 0.142s 1219 13.3% B 0.172s 1796 19.6% B 0.203s 2492 27.2% B 0.233s 3322 36.3% B 0.264s 4229 46.2% B 0.294s 5161 56.4% B 0.324s 6044 66.0% B 0.355s 6818 74.5% B 0.386s 7480 81.7% B 0.416s 8050 87.9% B 0.447s 8493 92.8% B 0.477s 8822 96.4% B 0.508s 9039 98.7% B 0.538s 9144 99.9% B 0.569s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9050 98.9% A 0.081s 8777 95.9% A 0.112s 8408 91.9% A 0.142s 7941 86.7% A 0.173s 7359 80.4% A 0.203s 6668 72.8% A 0.234s 5839 63.8% A 0.264s 4920 53.7% A 0.295s 3979 43.5% A 0.325s 3111 34.0% A 0.355s 2340 25.6% A 0.386s 1670 18.2% A 0.416s 1114 12.2% A 0.446s 669 7.3% A 0.477s 339 3.7% A 0.507s 114 1.2% A 0.538s 10 0.1% A 0.568s 2 0.0% B 0.020s 9145 99.9% B 0.051s 9018 98.5% B 0.081s 8772 95.8% B 0.111s 8420 92.0% B 0.142s 7951 86.9% B 0.172s 7378 80.6% B 0.203s 6690 73.1% B 0.233s 5865 64.1% B 0.264s 4950 54.1% B 0.294s 4022 43.9% B 0.324s 3137 34.3% B 0.355s 2370 25.9% B 0.385s 1683 18.4% B 0.415s 1131 12.4% B 0.445s 687 7.5% B 0.476s 347 3.8% B 0.506s 127 1.4% B 0.536s 12 0.1% B 0.566s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R