CHL Preflight Night 61160
Executing preflight for 61160 at Wed Apr 29 18:22:40 -04 2026.
Log can be found in /atlas/obs/04/61160/preflight.dat.
Setting donefile '/atlas/obs/04/61160/preflight_complete.20260429222241.27811' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260429222241.27811.
Wed Apr 29 18:22:41 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Apr 29 18:22:41 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [a56cbd94-7133-43f0-9a52-124629f3bf10;1800]
Wed Apr 29 18:22:41 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Wed Apr 29 18:22:41 -04 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Wed Apr 29 18:22:41 -04 2026 [elapsed=0 sec] auxcam is disabled.
Wed Apr 29 18:22:41 -04 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Wed Apr 29 18:22:41 -04 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777501357
OK
Wed Apr 29 18:22:41 -04 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Wed Apr 29 18:22:41 -04 2026 [elapsed=0 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
Wed Apr 29 18:22:43 -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
Wed Apr 29 18:22:43 -04 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Wed Apr 29 18:22:43 -04 2026 [elapsed=2 sec] CLOCKS
admin: Wed Apr 29 22:22:43 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 180 512 377 0.294 -0.650 0.291
+10.0.11.4 .GPS. 1 u 259 256 377 0.662 -0.023 0.237
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 138 512 377 218.667 -5.433 2.092
-185.125.190.58 146.131.121.246 2 u 128 512 377 218.183 -5.142 0.875
-alphyn.canonica 132.163.96.1 2 u 45 1024 377 152.267 -7.188 0.970
+185.125.190.56 146.131.121.246 2 u 94 512 377 213.274 -2.895 0.733
Wed Apr 29 18:22:44 -04 2026 [elapsed=3 sec] DISKS
200GB available in /atlas/obs...OK (3681GB)
200GB available in /atlas/red...OK (7473GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.7T 3.6T 66% /
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 6.6T 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 446G 13T 4% /
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
Wed Apr 29 18:22:44 -04 2026 [elapsed=3 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
Wed Apr 29 18:22:45 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Wed Apr 29 18:22:45 -04 2026 [elapsed=4 sec] SERVICES2
Wed Apr 29 18:22:45 -04 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Apr 29 18:22:49 -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=1.41e+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
Wed Apr 29 18:26:08 -04 2026 [elapsed=207 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: 121.64 -27.58, az/alt=324.56 +86.48 idle(e) IDLE
Wed Apr 29 18:27:15 -04 2026 [elapsed=274 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Apr 29 18:27:40 -04 2026 [elapsed=299 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Wed Apr 29 18:27:40 -04 2026 [elapsed=299 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.5C)
Checking CCD plane: Z0=-198.00 DZDX=+460.00 DZDY=-413.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Apr 29 18:27:40 -04 2026 [elapsed=299 sec] WEATHER
status weather: C 22.6C 15% 2/2kph@285 DP26.2C/-88C/d IDLE
...OK
Wed Apr 29 18:27:40 -04 2026 [elapsed=299 sec] MET
status...OK
met: c=N o=Y Ro2d Co1d Wo24d Ho24d To24d Do24d IDLE
Wed Apr 29 18:27:40 -04 2026 [elapsed=299 sec] SENTRY
status...OK
sentry: close=NO open=YES drop=YES IDLE
Wed Apr 29 18:27:41 -04 2026 [elapsed=300 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 150.32 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 6 0.1%
A 0.051s 114 1.2%
A 0.081s 383 4.2%
A 0.111s 724 7.9%
A 0.142s 1207 13.2%
A 0.172s 1776 19.4%
A 0.202s 2467 26.9%
A 0.233s 3262 35.6%
A 0.263s 4166 45.5%
A 0.293s 5108 55.8%
A 0.324s 5981 65.3%
A 0.354s 6806 74.4%
A 0.385s 7453 81.4%
A 0.415s 8027 87.7%
A 0.445s 8467 92.5%
A 0.476s 8802 96.2%
A 0.506s 9032 98.7%
A 0.536s 9141 99.9%
A 0.566s 9156 100.0%
B 0.020s 1 0.0%
B 0.050s 85 0.9%
B 0.081s 377 4.1%
B 0.111s 736 8.0%
B 0.142s 1192 13.0%
B 0.172s 1781 19.5%
B 0.202s 2469 27.0%
B 0.233s 3256 35.6%
B 0.263s 4172 45.6%
B 0.294s 5113 55.9%
B 0.324s 5996 65.5%
B 0.354s 6805 74.3%
B 0.385s 7451 81.4%
B 0.415s 8027 87.7%
B 0.445s 8460 92.4%
B 0.475s 8801 96.1%
B 0.506s 9031 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9050 98.9%
A 0.081s 8758 95.7%
A 0.112s 8415 91.9%
A 0.142s 7947 86.8%
A 0.172s 7352 80.3%
A 0.203s 6665 72.8%
A 0.233s 5865 64.1%
A 0.263s 4951 54.1%
A 0.294s 4026 44.0%
A 0.324s 3109 34.0%
A 0.354s 2333 25.5%
A 0.385s 1693 18.5%
A 0.415s 1108 12.1%
A 0.446s 679 7.4%
A 0.476s 339 3.7%
A 0.506s 119 1.3%
A 0.537s 10 0.1%
A 0.567s -3 0.0%
B 0.020s 9147 99.9%
B 0.051s 9031 98.7%
B 0.081s 8761 95.7%
B 0.111s 8404 91.8%
B 0.141s 7944 86.8%
B 0.172s 7356 80.4%
B 0.202s 6664 72.8%
B 0.233s 5872 64.1%
B 0.263s 4959 54.2%
B 0.293s 4006 43.8%
B 0.324s 3114 34.0%
B 0.354s 2328 25.4%
B 0.385s 1679 18.3%
B 0.415s 1117 12.2%
B 0.445s 662 7.2%
B 0.476s 343 3.7%
B 0.506s 115 1.3%
B 0.536s 5 0.1%
A 0 0.0mm 15 N F R | B -1 -0.0mm 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 0.567 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=1.13e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9893 IDLE
Wed Apr 29 18:28:17 -04 2026 [elapsed=336 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:
157M Apr 29 18:28 /atlas/obs/04a/61160/04a61160e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Apr 29 18:28:40 -04 2026 [elapsed=359 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (64 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Apr 29 18:28:40 -04 2026 [elapsed=359 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61159.93657968|info|galildriver|using focus model: foc=9830+(3.50)*24.0+(-0.35)*60.3=9892.9
61159.93658436|info|galildriver|o 3 IN | cass: 6105585 30.53 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53272063 9894 um b=0f [cmd]
bestfocus for o...OK
Wed Apr 29 18:28:41 -04 2026 [elapsed=360 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Apr 29 18:29:15 -04 2026 [elapsed=394 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.
Wed Apr 29 18:29:16 -04 2026 [elapsed=395 sec] Happy observing!
Wed Apr 29 18:29:16 -04 2026 [elapsed=395 sec] Preflight took 395 seconds to complete.
Wed Apr 29 18:29:16 -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 114 1.2% A 0.081s 386 4.2% A 0.112s 736 8.0% A 0.142s 1197 13.1% A 0.173s 1803 19.7% A 0.203s 2489 27.2% A 0.234s 3295 36.0% A 0.264s 4205 45.9% A 0.294s 5133 56.1% A 0.325s 6052 66.1% A 0.355s 6797 74.3% A 0.386s 7474 81.6% A 0.416s 8038 87.8% A 0.446s 8481 92.6% A 0.476s 8811 96.3% A 0.507s 9038 98.7% A 0.537s 9140 99.8% A 0.567s 9153 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1203 13.1% B 0.172s 1773 19.4% B 0.202s 2466 26.9% B 0.232s 3268 35.7% B 0.262s 4168 45.5% B 0.293s 5104 55.8% B 0.323s 5987 65.4% B 0.353s 6771 74.0% B 0.383s 7441 81.3% B 0.414s 8002 87.4% B 0.444s 8456 92.4% B 0.474s 8794 96.1% B 0.504s 9022 98.6% B 0.534s 9139 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.051s 9051 98.9% A 0.081s 8777 95.9% A 0.111s 8420 92.0% A 0.141s 7959 86.9% A 0.172s 7380 80.6% A 0.202s 6691 73.1% A 0.232s 5894 64.4% A 0.262s 4981 54.4% A 0.293s 4039 44.1% A 0.323s 3165 34.6% A 0.353s 2387 26.1% A 0.383s 1711 18.7% A 0.414s 1147 12.5% A 0.444s 693 7.6% A 0.474s 367 4.0% A 0.504s 125 1.4% A 0.535s 15 0.2% A 0.565s 1 0.0% B 0.020s 9145 99.9% B 0.050s 9019 98.5% B 0.081s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7951 86.9% B 0.171s 7379 80.6% B 0.202s 6689 73.1% B 0.232s 5891 64.4% B 0.262s 4983 54.4% B 0.292s 4055 44.3% B 0.322s 3191 34.9% B 0.353s 2414 26.4% B 0.383s 1724 18.8% B 0.413s 1165 12.7% B 0.443s 712 7.8% B 0.474s 367 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.564s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R