CHL Preflight Night 61148
Executing preflight for 61148 at Fri Apr 17 17:23:05 -04 2026.
Log can be found in /atlas/obs/04/61148/preflight.dat.
Setting donefile '/atlas/obs/04/61148/preflight_complete.20260417212305.28119' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260417212305.28119.
Fri Apr 17 17:23:05 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Apr 17 17:23:05 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [fcfd4456-a876-44e7-9c22-b6288b4b150a;1800]
Fri Apr 17 17:23:05 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Fri Apr 17 17:23:06 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Fri Apr 17 17:23:06 -04 2026 [elapsed=1 sec] auxcam is disabled.
Fri Apr 17 17:23:06 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Apr 17 17:23:06 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1776460984
OK
Fri Apr 17 17:23:06 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Apr 17 17:23:06 -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 17 17:23:08 -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 17 17:23:08 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Apr 17 17:23:08 -04 2026 [elapsed=3 sec] CLOCKS
admin: Fri Apr 17 21:23:08 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 48 512 377 0.301 0.421 0.198
+10.0.11.4 .GPS. 1 u 10 512 377 0.531 0.297 0.235
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 613 1024 377 221.235 -6.413 1.504
-185.125.190.58 99.220.8.133 2 u 218 512 377 221.897 -5.801 1.894
+alphyn.canonica 132.163.96.1 2 u 13 512 327 150.074 -5.355 1.300
-185.125.190.56 146.131.121.246 2 u 632 1024 377 222.540 -7.189 0.576
Fri Apr 17 17:23:10 -04 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (3977GB)
200GB available in /atlas/red...OK (7638GB)
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 6.4T 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 604G 13T 5% /
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
Fri Apr 17 17:23:10 -04 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
Fri Apr 17 17:23:10 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Fri Apr 17 17:23:10 -04 2026 [elapsed=5 sec] Closing dome.
Fri Apr 17 17:23:28 -04 2026 [elapsed=23 sec] SERVICES2
Fri Apr 17 17:23:28 -04 2026 [elapsed=23 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Apr 17 17:23:33 -04 2026 [elapsed=28 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/CLOSED (0%) IDLE
Fri Apr 17 17:26:51 -04 2026 [elapsed=226 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: 94.94 -27.58, az/alt=324.56 +86.48 idle(e) IDLE
Fri Apr 17 17:27:56 -04 2026 [elapsed=291 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Apr 17 17:28:21 -04 2026 [elapsed=316 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=495/0 spi=41.6 IDLE
Fri Apr 17 17:28:21 -04 2026 [elapsed=316 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 (-53.7C)
Checking CCD plane: Z0=-198.00 DZDX=+459.00 DZDY=-415.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=495 IDLE
Fri Apr 17 17:28:21 -04 2026 [elapsed=316 sec] WEATHER
status weather: C 24.6C 24% 14/16kph@296 DP20.6C/-47C/d IDLE
...OK
Fri Apr 17 17:28:21 -04 2026 [elapsed=316 sec] MET
status...OK
met: c=N o=N Ro3d Cs0 Wo12d Ho12d To12d Do12d wait C IDLE
Fri Apr 17 17:28:21 -04 2026 [elapsed=316 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Apr 17 17:28:21 -04 2026 [elapsed=316 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 123.62 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 9 0.1%
A 0.051s 117 1.3%
A 0.081s 396 4.3%
A 0.111s 742 8.1%
A 0.142s 1221 13.3%
A 0.172s 1795 19.6%
A 0.202s 2490 27.2%
A 0.233s 3292 36.0%
A 0.263s 4195 45.8%
A 0.293s 5136 56.1%
A 0.324s 6011 65.7%
A 0.354s 6828 74.6%
A 0.385s 7454 81.4%
A 0.415s 8045 87.9%
A 0.445s 8466 92.5%
A 0.475s 8803 96.2%
A 0.505s 9032 98.7%
A 0.536s 9140 99.8%
A 0.566s 9156 100.0%
B 0.020s 2 0.0%
B 0.050s 93 1.0%
B 0.081s 377 4.1%
B 0.111s 736 8.0%
B 0.142s 1193 13.0%
B 0.172s 1782 19.5%
B 0.202s 2469 27.0%
B 0.233s 3255 35.6%
B 0.263s 4201 45.9%
B 0.294s 5144 56.2%
B 0.324s 6024 65.8%
B 0.355s 6803 74.3%
B 0.385s 7451 81.4%
B 0.415s 8028 87.7%
B 0.445s 8471 92.5%
B 0.476s 8802 96.2%
B 0.506s 9042 98.8%
B 0.537s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9046 98.8%
A 0.081s 8759 95.7%
A 0.111s 8413 91.9%
A 0.142s 7946 86.8%
A 0.172s 7349 80.3%
A 0.202s 6665 72.8%
A 0.232s 5866 64.1%
A 0.262s 4949 54.1%
A 0.293s 4025 44.0%
A 0.323s 3136 34.3%
A 0.353s 2355 25.7%
A 0.383s 1693 18.5%
A 0.413s 1123 12.3%
A 0.444s 691 7.5%
A 0.474s 348 3.8%
A 0.504s 126 1.4%
A 0.535s 9 0.1%
B 0.020s 9149 99.9%
B 0.050s 9042 98.8%
B 0.081s 8773 95.8%
B 0.111s 8417 91.9%
B 0.141s 7962 87.0%
B 0.172s 7377 80.6%
B 0.202s 6664 72.8%
B 0.232s 5900 64.5%
B 0.263s 4990 54.5%
B 0.293s 4037 44.1%
B 0.323s 3169 34.6%
B 0.353s 2372 25.9%
B 0.384s 1698 18.5%
B 0.414s 1135 12.4%
B 0.445s 672 7.3%
B 0.475s 351 3.8%
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 0.537 seconds.
Shutter A closed to 0.1 percent in 0.535 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=9893 IDLE
Fri Apr 17 17:28:57 -04 2026 [elapsed=352 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=495/0 spi=41.6 IDLE
taking preflight exposures:
acam...OK
acam image:
160M Apr 17 17:29 /atlas/obs/04a/61148/04a61148e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Apr 17 17:29:20 -04 2026 [elapsed=375 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (14 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Apr 17 17:29:20 -04 2026 [elapsed=375 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61147.89537728|info|galildriver|using focus model: foc=9830+(3.50)*23.4+(-0.35)*60.2=9890.8
61147.89538230|info|galildriver|o 3 IN | cass: 6104937 30.52 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53272074 9894 um b=8f M [focus]
61147.89539244|info|galildriver|o 3 IN | cass: 6104937 30.52 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53272388 9892 um b=0f [cmd]
bestfocus for o...OK
Fri Apr 17 17:29:22 -04 2026 [elapsed=377 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Apr 17 17:29:55 -04 2026 [elapsed=410 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 17 17:29:56 -04 2026 [elapsed=411 sec] Happy observing!
Fri Apr 17 17:29:56 -04 2026 [elapsed=411 sec] Preflight took 411 seconds to complete.
Fri Apr 17 17:29:56 -04 2026 [elapsed=411 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 114 1.2% A 0.081s 386 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1783 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.322s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7434 81.2% A 0.413s 7989 87.3% A 0.443s 8444 92.2% A 0.474s 8781 95.9% A 0.504s 9022 98.6% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 102 1.1% B 0.080s 371 4.1% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1754 19.2% B 0.201s 2444 26.7% B 0.231s 3239 35.4% B 0.262s 4137 45.2% B 0.292s 5072 55.4% B 0.322s 5962 65.1% B 0.352s 6748 73.7% B 0.383s 7418 81.0% B 0.413s 7985 87.2% B 0.443s 8443 92.2% B 0.474s 8785 96.0% B 0.504s 9017 98.5% B 0.534s 9136 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9044 98.8% A 0.081s 8767 95.8% A 0.111s 8407 91.8% A 0.141s 7957 86.9% A 0.171s 7379 80.6% A 0.202s 6692 73.1% A 0.232s 5893 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.322s 3165 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.443s 694 7.6% A 0.474s 358 3.9% A 0.504s 126 1.4% A 0.534s 14 0.2% A 0.565s 1 0.0% B 0.020s 9145 99.9% B 0.050s 9018 98.5% B 0.081s 8771 95.8% B 0.111s 8420 92.0% B 0.141s 7935 86.7% B 0.171s 7357 80.4% B 0.202s 6690 73.1% B 0.232s 5892 64.4% B 0.262s 4952 54.1% B 0.293s 4051 44.3% B 0.323s 3163 34.6% B 0.353s 2392 26.1% B 0.383s 1706 18.6% B 0.414s 1149 12.6% B 0.444s 700 7.6% B 0.474s 357 3.9% B 0.504s 133 1.5% B 0.534s 14 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R