CHL Preflight Night 61196
Executing preflight for 61196 at Thu Jun 4 16:51:44 -04 2026.
Log can be found in /atlas/obs/04/61196/preflight.dat.
Setting donefile '/atlas/obs/04/61196/preflight_complete.20260604205144.19784' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260604205144.19784.
Thu Jun 4 16:51:44 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Jun 4 16:51:44 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [3de3ef16-cac8-4276-a90d-f336fa9cc977;1800]
Thu Jun 4 16:51:44 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu Jun 4 16:51:45 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu Jun 4 16:51:45 -04 2026 [elapsed=1 sec] auxcam is disabled.
Thu Jun 4 16:51:45 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Jun 4 16:51:45 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1780606304
OK
Thu Jun 4 16:51:45 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Jun 4 16:51:45 -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
Thu Jun 4 16:51:47 -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
Thu Jun 4 16:51:48 -04 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Thu Jun 4 16:51:48 -04 2026 [elapsed=4 sec] CLOCKS
admin: Thu Jun 4 20:51:48 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 310 1024 377 0.312 1.075 0.632
*10.0.11.4 .GPS. 1 u 550 1024 377 0.608 1.020 0.497
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.56 99.220.8.133 2 u 464 1024 377 206.875 -3.520 1.653
-185.125.190.58 146.131.121.246 2 u 4 1024 377 212.971 -6.717 1.150
+alphyn.canonica 132.163.96.1 2 u 864 1024 373 157.134 -0.511 2.429
-185.125.190.57 99.220.8.133 2 u 1019 1024 377 211.535 -6.896 1.547
Thu Jun 4 16:51:50 -04 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (3671GB)
200GB available in /atlas/red...OK (7573GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.8T 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 35G 37% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/loop1 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
proc1:/dev/md0p1 15T 6.5T 7.3T 48% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc2:/dev/md0p1 15T 467G 13T 4% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 907G 13T 7% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 696G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Thu Jun 4 16:51:50 -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
Thu Jun 4 16:51:50 -04 2026 [elapsed=6 sec] Disabling mount tracking.
Thu Jun 4 16:51:50 -04 2026 [elapsed=6 sec] Closing dome.
Thu Jun 4 16:52:36 -04 2026 [elapsed=52 sec] SERVICES2
Thu Jun 4 16:52:36 -04 2026 [elapsed=52 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Jun 4 16:52:40 -04 2026 [elapsed=56 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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.6e+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
Thu Jun 4 16:56:04 -04 2026 [elapsed=260 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: 134.54 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Thu Jun 4 16:57:09 -04 2026 [elapsed=325 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Jun 4 16:57:34 -04 2026 [elapsed=350 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=1069/0 spi=64.8 IDLE
Thu Jun 4 16:57:34 -04 2026 [elapsed=350 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.8C)
Checking CCD plane: Z0=-196.00 DZDX=+467.00 DZDY=-411.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=1069 IDLE
Thu Jun 4 16:57:34 -04 2026 [elapsed=350 sec] WEATHER
status weather: C 22.4C 14% 12/13kph@326 DP30.3C/29C/d IDLE
...OK
Thu Jun 4 16:57:35 -04 2026 [elapsed=351 sec] MET
status...OK
met: c=N o=N Ro1d Cs0 Wo1d Ho1d To1d Do1d wait C IDLE
Thu Jun 4 16:57:35 -04 2026 [elapsed=351 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Jun 4 16:57:35 -04 2026 [elapsed=351 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 163.22 -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 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 7 0.1%
A 0.051s 127 1.4%
A 0.081s 398 4.3%
A 0.111s 741 8.1%
A 0.142s 1219 13.3%
A 0.172s 1793 19.6%
A 0.202s 2491 27.2%
A 0.233s 3295 36.0%
A 0.263s 4193 45.8%
A 0.293s 5166 56.4%
A 0.324s 6039 66.0%
A 0.354s 6827 74.6%
A 0.384s 7473 81.6%
A 0.415s 8044 87.9%
A 0.445s 8479 92.6%
A 0.475s 8812 96.3%
A 0.506s 9039 98.7%
A 0.536s 9142 99.9%
A 0.566s 9154 100.0%
B 0.020s 3 0.0%
B 0.050s 99 1.1%
B 0.081s 387 4.2%
B 0.111s 749 8.2%
B 0.141s 1210 13.2%
B 0.172s 1802 19.7%
B 0.202s 2493 27.2%
B 0.232s 3282 35.9%
B 0.263s 4203 45.9%
B 0.293s 5144 56.2%
B 0.323s 6024 65.8%
B 0.353s 6805 74.3%
B 0.384s 7451 81.4%
B 0.414s 8027 87.7%
B 0.444s 8472 92.5%
B 0.475s 8802 96.2%
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 0.050s 9057 98.9%
A 0.081s 8769 95.8%
A 0.111s 8427 92.1%
A 0.141s 7958 86.9%
A 0.171s 7379 80.6%
A 0.202s 6688 73.1%
A 0.232s 5894 64.4%
A 0.263s 4982 54.4%
A 0.293s 4054 44.3%
A 0.323s 3138 34.3%
A 0.354s 2353 25.7%
A 0.384s 1695 18.5%
A 0.414s 1124 12.3%
A 0.445s 692 7.6%
A 0.475s 348 3.8%
A 0.505s 123 1.3%
A 0.535s 10 0.1%
A 0.566s -4 0.0%
B 0.020s 9150 100.0%
B 0.050s 9045 98.8%
B 0.081s 8781 95.9%
B 0.111s 8431 92.1%
B 0.141s 7976 87.1%
B 0.172s 7397 80.8%
B 0.202s 6711 73.3%
B 0.232s 5925 64.7%
B 0.263s 5018 54.8%
B 0.293s 4064 44.4%
B 0.323s 3196 34.9%
B 0.353s 2398 26.2%
B 0.384s 1736 19.0%
B 0.414s 1168 12.8%
B 0.444s 699 7.6%
B 0.474s 370 4.0%
B 0.505s 134 1.5%
B 0.535s 8 0.1%
A 0 0.0mm 15 N F R | B -3 -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 0.0 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=1.23e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9883 IDLE
Thu Jun 4 16:58:11 -04 2026 [elapsed=387 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=1069/0 spi=64.8 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Jun 4 16:58 /atlas/obs/04a/61196/04a61196e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Jun 4 16:58:33 -04 2026 [elapsed=409 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (31 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Jun 4 16:58:33 -04 2026 [elapsed=409 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61195.87400240|info|galildriver|using focus model: foc=9830+(3.50)*21.5+(-0.35)*60.2=9884.2
61195.87400707|info|galildriver|o 3 IN | cass: 6101621 30.51 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53274168 9883 um b=0f [cmd]
bestfocus for o...OK
Thu Jun 4 16:58:34 -04 2026 [elapsed=410 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Jun 4 16:59:07 -04 2026 [elapsed=443 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.
Thu Jun 4 16:59:08 -04 2026 [elapsed=444 sec] Happy observing!
Thu Jun 4 16:59:08 -04 2026 [elapsed=444 sec] Preflight took 444 seconds to complete.
Thu Jun 4 16:59:08 -04 2026 [elapsed=444 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 107 1.2% A 0.081s 375 4.1% A 0.111s 723 7.9% A 0.141s 1179 12.9% A 0.172s 1762 19.2% A 0.202s 2443 26.7% A 0.232s 3239 35.4% A 0.263s 4144 45.3% A 0.293s 5073 55.4% A 0.323s 5970 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.414s 7988 87.3% A 0.444s 8445 92.3% A 0.474s 8783 95.9% A 0.504s 9021 98.5% A 0.545s 9151 100.0% B 0.020s 1 0.0% B 0.051s 122 1.3% B 0.081s 387 4.2% B 0.111s 743 8.1% B 0.141s 1219 13.3% B 0.172s 1796 19.6% B 0.202s 2493 27.2% B 0.232s 3295 36.0% B 0.262s 4198 45.9% B 0.293s 5133 56.1% B 0.323s 6017 65.7% B 0.353s 6796 74.2% B 0.383s 7457 81.5% B 0.414s 8018 87.6% B 0.444s 8468 92.5% B 0.474s 8804 96.2% B 0.504s 9028 98.6% B 0.535s 9141 99.9% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9043 98.8% A 0.081s 8767 95.8% A 0.111s 8408 91.9% A 0.141s 7941 86.7% A 0.171s 7359 80.4% A 0.202s 6668 72.8% A 0.232s 5866 64.1% A 0.262s 4950 54.1% A 0.293s 4010 43.8% A 0.323s 3139 34.3% A 0.353s 2363 25.8% A 0.383s 1690 18.5% A 0.414s 1130 12.3% A 0.444s 681 7.4% A 0.474s 349 3.8% A 0.504s 119 1.3% A 0.535s 12 0.1% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9013 98.5% B 0.081s 8763 95.7% B 0.111s 8409 91.9% B 0.141s 7936 86.7% B 0.171s 7358 80.4% B 0.202s 6667 72.8% B 0.232s 5866 64.1% B 0.262s 4951 54.1% B 0.292s 4023 43.9% B 0.323s 3139 34.3% B 0.353s 2367 25.9% B 0.383s 1682 18.4% B 0.414s 1133 12.4% B 0.444s 686 7.5% B 0.474s 348 3.8% B 0.504s 127 1.4% B 0.535s 12 0.1% B 0.565s 1 0.0% A 1 0.0mm 15 N F R | B 1 0.0mm 15 N F R