CHL Preflight Night 61155
Executing preflight for 61155 at Fri Apr 24 17:16:00 -04 2026.
Log can be found in /atlas/obs/04/61155/preflight.dat.
Setting donefile '/atlas/obs/04/61155/preflight_complete.20260424211600.25426' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260424211600.25426.
Fri Apr 24 17:16:00 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Apr 24 17:16:00 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [fb67bc3f-6bd6-471c-9b13-59039a84f7d8;1800]
Fri Apr 24 17:16:00 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Fri Apr 24 17:16:01 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Fri Apr 24 17:16:01 -04 2026 [elapsed=1 sec] auxcam is disabled.
Fri Apr 24 17:16:01 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Apr 24 17:16:01 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777065351
OK
Fri Apr 24 17:16:01 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Apr 24 17:16:01 -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
Fri Apr 24 17:16:03 -04 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 Apr 24 17:16:03 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Apr 24 17:16:03 -04 2026 [elapsed=3 sec] CLOCKS
admin: Fri Apr 24 21:16:03 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 1058 1024 377 0.326 0.495 0.628
+10.0.11.4 .GPS. 1 u 180 1024 377 0.480 0.664 0.546
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 866 1024 377 225.120 -8.692 0.859
-185.125.190.58 146.131.121.246 2 u 724 1024 377 225.708 -7.817 0.817
+alphyn.canonica 132.163.96.1 2 u 975 1024 177 152.553 -5.598 0.831
-185.125.190.56 146.131.121.246 2 u 811 1024 377 225.095 -7.739 0.898
Fri Apr 24 17:16:06 -04 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (3785GB)
200GB available in /atlas/red...OK (7528GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.6T 3.7T 65% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 20G 36G 36% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
archon:/dev/loop2 106M 106M 0 100% /snap/core/17292
proc1:/dev/md0p1 15T 6.5T 7.2T 48% /
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 612G 13T 5% /
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 902G 13T 7% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc4:/dev/md0p1 15T 692G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Fri Apr 24 17:16:06 -04 2026 [elapsed=6 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 Apr 24 17:16:06 -04 2026 [elapsed=6 sec] Disabling mount tracking.
Fri Apr 24 17:16:06 -04 2026 [elapsed=6 sec] SERVICES2
Fri Apr 24 17:16:06 -04 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Apr 24 17:16:10 -04 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= 914kB time=00:00:29.24 bitrate= 256.0kbits/s speed=1.51e+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 Apr 24 17:19:29 -04 2026 [elapsed=209 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: 100.00 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Fri Apr 24 17:20:34 -04 2026 [elapsed=274 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Apr 24 17:20:59 -04 2026 [elapsed=299 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Fri Apr 24 17:20:59 -04 2026 [elapsed=299 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.9C)
Checking CCD plane: Z0=-197.00 DZDX=+462.00 DZDY=-416.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri Apr 24 17:20:59 -04 2026 [elapsed=299 sec] WEATHER
status weather: clear 24.8C 15% 11/17kph@263 DP28.8C/-45C/d IDLE
...OK
Fri Apr 24 17:20:59 -04 2026 [elapsed=299 sec] MET
status...OK
met: c=N o=Y Ro10d Co20h Wo19d Ho19d To19d Do19d IDLE
Fri Apr 24 17:20:59 -04 2026 [elapsed=299 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Apr 24 17:20:59 -04 2026 [elapsed=299 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 128.67 -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 3 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 8 0.1%
A 0.051s 116 1.3%
A 0.081s 393 4.3%
A 0.111s 740 8.1%
A 0.142s 1225 13.4%
A 0.172s 1797 19.6%
A 0.202s 2494 27.2%
A 0.232s 3288 35.9%
A 0.263s 4195 45.8%
A 0.293s 5138 56.1%
A 0.323s 6012 65.7%
A 0.354s 6807 74.4%
A 0.384s 7453 81.4%
A 0.415s 8024 87.7%
A 0.445s 8468 92.5%
A 0.475s 8812 96.3%
A 0.506s 9038 98.7%
A 0.536s 9142 99.9%
A 0.566s 9156 100.0%
B 0.020s 1 0.0%
B 0.051s 90 1.0%
B 0.081s 386 4.2%
B 0.112s 748 8.2%
B 0.142s 1208 13.2%
B 0.172s 1801 19.7%
B 0.202s 2492 27.2%
B 0.233s 3280 35.8%
B 0.263s 4202 45.9%
B 0.293s 5143 56.2%
B 0.323s 6022 65.8%
B 0.354s 6803 74.3%
B 0.384s 7450 81.4%
B 0.414s 8027 87.7%
B 0.445s 8472 92.5%
B 0.475s 8801 96.1%
B 0.505s 9037 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9052 98.9%
A 0.081s 8770 95.8%
A 0.111s 8428 92.1%
A 0.142s 7947 86.8%
A 0.172s 7349 80.3%
A 0.202s 6665 72.8%
A 0.233s 5863 64.0%
A 0.263s 4947 54.0%
A 0.293s 4026 44.0%
A 0.324s 3136 34.3%
A 0.354s 2361 25.8%
A 0.384s 1688 18.4%
A 0.415s 1123 12.3%
A 0.445s 691 7.5%
A 0.476s 347 3.8%
A 0.506s 120 1.3%
A 0.536s 9 0.1%
B 0.020s 9148 99.9%
B 0.051s 9035 98.7%
B 0.081s 8763 95.7%
B 0.111s 8406 91.8%
B 0.142s 7944 86.8%
B 0.172s 7358 80.4%
B 0.202s 6665 72.8%
B 0.232s 5873 64.2%
B 0.263s 4960 54.2%
B 0.293s 3979 43.5%
B 0.323s 3141 34.3%
B 0.354s 2350 25.7%
B 0.384s 1698 18.5%
B 0.414s 1135 12.4%
B 0.444s 672 7.3%
B 0.475s 351 3.8%
B 0.505s 121 1.3%
B 0.535s 4 0.0%
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 0.535 seconds.
Shutter A closed to 0.1 percent in 0.536 seconds.
Shutter B closed to 0.0 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
Fri Apr 24 17:21:34 -04 2026 [elapsed=334 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
160M Apr 24 17:21 /atlas/obs/04a/61155/04a61155e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Apr 24 17:21:56 -04 2026 [elapsed=356 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (20 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Apr 24 17:21:56 -04 2026 [elapsed=356 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61154.89024335|info|galildriver|using focus model: foc=9830+(3.50)*22.7+(-0.35)*60.2=9888.4
61154.89024803|info|galildriver|o 3 IN | cass: 6105398 30.53 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53273011 9889 um b=0f [cmd]
bestfocus for o...OK
Fri Apr 24 17:21:58 -04 2026 [elapsed=358 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Apr 24 17:22:30 -04 2026 [elapsed=390 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 Apr 24 17:22:32 -04 2026 [elapsed=392 sec] Happy observing!
Fri Apr 24 17:22:32 -04 2026 [elapsed=392 sec] Preflight took 392 seconds to complete.
Fri Apr 24 17:22:32 -04 2026 [elapsed=392 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 0.051s 115 1.3% A 0.081s 385 4.2% A 0.111s 736 8.0% A 0.141s 1196 13.1% A 0.172s 1782 19.5% A 0.202s 2467 26.9% A 0.232s 3265 35.7% A 0.262s 4174 45.6% A 0.293s 5104 55.8% A 0.323s 5996 65.5% A 0.353s 6775 74.0% A 0.383s 7434 81.2% A 0.414s 8005 87.4% A 0.444s 8456 92.4% A 0.474s 8792 96.0% A 0.505s 9027 98.6% A 0.535s 9138 99.8% A 0.565s 9154 100.0% B 0.020s 2 0.0% B 0.051s 119 1.3% B 0.081s 387 4.2% B 0.112s 744 8.1% B 0.142s 1220 13.3% B 0.172s 1795 19.6% B 0.203s 2492 27.2% B 0.233s 3294 36.0% B 0.263s 4198 45.9% B 0.293s 5133 56.1% B 0.324s 6017 65.7% B 0.354s 6795 74.2% B 0.384s 7458 81.5% B 0.415s 8018 87.6% B 0.445s 8468 92.5% B 0.475s 8804 96.2% B 0.505s 9028 98.6% B 0.536s 9141 99.9% B 0.566s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.051s 9050 98.9% A 0.081s 8767 95.8% A 0.112s 8407 91.8% A 0.142s 7941 86.7% A 0.173s 7360 80.4% A 0.203s 6667 72.8% A 0.233s 5867 64.1% A 0.263s 4951 54.1% A 0.294s 4009 43.8% A 0.324s 3138 34.3% A 0.355s 2340 25.6% A 0.385s 1670 18.2% A 0.415s 1114 12.2% A 0.446s 668 7.3% A 0.476s 340 3.7% A 0.507s 114 1.2% A 0.537s 11 0.1% A 0.568s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9011 98.4% B 0.081s 8763 95.7% B 0.111s 8409 91.9% B 0.142s 7934 86.7% B 0.172s 7336 80.1% B 0.203s 6642 72.6% B 0.233s 5837 63.8% B 0.264s 4920 53.7% B 0.294s 3963 43.3% B 0.324s 3084 33.7% B 0.355s 2323 25.4% B 0.386s 1643 17.9% B 0.416s 1100 12.0% B 0.447s 648 7.1% B 0.477s 322 3.5% B 0.508s 110 1.2% B 0.538s 8 0.1% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R