CHL Preflight Night 61223
Executing preflight for 61223 at Wed Jul 1 16:55:45 -04 2026.
Log can be found in /atlas/obs/04/61223/preflight.dat.
Setting donefile '/atlas/obs/04/61223/preflight_complete.20260701205545.19300' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260701205545.19300.
Wed Jul 1 16:55:45 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Jul 1 16:55:45 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [34e2a569-1eaf-4b42-ab3f-2603b8ae3401;1800]
Wed Jul 1 16:55:45 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Wed Jul 1 16:55:46 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Wed Jul 1 16:55:46 -04 2026 [elapsed=1 sec] auxcam is disabled.
Wed Jul 1 16:55:46 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Jul 1 16:55:46 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1782939341
OK
Wed Jul 1 16:55:46 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Jul 1 16:55:46 -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
Wed Jul 1 16:55:48 -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
Wed Jul 1 16:55:48 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Jul 1 16:55:48 -04 2026 [elapsed=3 sec] CLOCKS
admin: Wed Jul 1 20:55:48 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 754 1024 377 0.304 0.215 0.207
*10.0.11.4 .GPS. 1 u 237 1024 377 0.685 0.467 0.288
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+alphyn.canonica 132.163.96.1 2 u 685 1024 377 150.276 -6.725 0.776
-185.125.190.56 99.220.8.133 2 u 132 1024 177 224.571 -7.746 0.612
-185.125.190.58 146.131.121.246 2 u 795 1024 377 223.597 -6.507 1.197
-185.125.190.57 99.220.8.133 2 u 916 1024 377 223.325 -7.976 0.708
Wed Jul 1 16:55:49 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (4362GB)
200GB available in /atlas/red...OK (8730GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.1T 4.2T 60% /
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 18G 38G 32% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 5.4T 8.4T 39% /
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc2:/dev/md0p1 15T 451G 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 903G 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 696G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Wed Jul 1 16:55:50 -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
Wed Jul 1 16:55:50 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Wed Jul 1 16:55:50 -04 2026 [elapsed=5 sec] SERVICES2
Wed Jul 1 16:55:50 -04 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Jul 1 16:55:54 -04 2026 [elapsed=9 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=1.6e+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
Wed Jul 1 16:59:13 -04 2026 [elapsed=208 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: 161.92 -27.58, az/alt=324.66 +86.49 idle(e) IDLE
Wed Jul 1 17:00:11 -04 2026 [elapsed=266 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Jul 1 17:00:33 -04 2026 [elapsed=288 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=878/0 spi=35.9 IDLE
Wed Jul 1 17:00:33 -04 2026 [elapsed=288 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (6 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.9C)
Checking CCD plane: Z0=-191.00 DZDX=+460.00 DZDY=-419.00
acam: -55C CCD TEC ION e=20.0s d=0.6s N=878 IDLE
Wed Jul 1 17:00:33 -04 2026 [elapsed=288 sec] WEATHER
status weather: clear 12.6C 43% 1/2kph@347 DP10.1C/-102C/d IDLE
...OK
Wed Jul 1 17:00:34 -04 2026 [elapsed=289 sec] MET
status...OK
met: c=N o=Y Ro12d Co10d Wo12d Ho12d To12d Do10d IDLE
Wed Jul 1 17:00:34 -04 2026 [elapsed=289 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Jul 1 17:00:34 -04 2026 [elapsed=289 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 190.59 -12.93, az/alt=59.88 +60.07 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 102 1.1%
A 0.081s 388 4.2%
A 0.111s 717 7.8%
A 0.141s 1185 12.9%
A 0.172s 1776 19.4%
A 0.202s 2467 26.9%
A 0.233s 3262 35.6%
A 0.263s 4159 45.4%
A 0.294s 5111 55.8%
A 0.324s 5986 65.4%
A 0.354s 6780 74.1%
A 0.385s 7430 81.2%
A 0.415s 8009 87.5%
A 0.445s 8456 92.4%
A 0.475s 8797 96.1%
A 0.506s 9032 98.7%
A 0.536s 9143 99.9%
A 0.566s 9159 100.0%
B 0.020s 3 0.0%
B 0.050s 93 1.0%
B 0.081s 383 4.2%
B 0.111s 747 8.2%
B 0.141s 1208 13.2%
B 0.172s 1801 19.7%
B 0.202s 2494 27.2%
B 0.232s 3283 35.9%
B 0.263s 4201 45.9%
B 0.293s 5142 56.2%
B 0.323s 6020 65.8%
B 0.354s 6826 74.6%
B 0.384s 7470 81.6%
B 0.414s 8044 87.9%
B 0.445s 8484 92.7%
B 0.475s 8810 96.2%
B 0.505s 9044 98.8%
B 0.536s 9150 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9046 98.8%
A 0.081s 8762 95.7%
A 0.111s 8415 91.9%
A 0.142s 7940 86.7%
A 0.172s 7339 80.2%
A 0.202s 6644 72.6%
A 0.233s 5842 63.8%
A 0.263s 4918 53.7%
A 0.293s 3996 43.7%
A 0.324s 3110 34.0%
A 0.354s 2334 25.5%
A 0.384s 1674 18.3%
A 0.415s 1106 12.1%
A 0.445s 677 7.4%
A 0.475s 337 3.7%
A 0.506s 118 1.3%
A 0.536s 7 0.1%
B 0.020s 9150 100.0%
B 0.050s 9039 98.7%
B 0.081s 8784 96.0%
B 0.111s 8432 92.1%
B 0.141s 7976 87.1%
B 0.171s 7399 80.8%
B 0.202s 6709 73.3%
B 0.232s 5923 64.7%
B 0.262s 5021 54.9%
B 0.293s 4065 44.4%
B 0.323s 3196 34.9%
B 0.353s 2398 26.2%
B 0.383s 1716 18.7%
B 0.414s 1151 12.6%
B 0.444s 686 7.5%
B 0.474s 360 3.9%
B 0.505s 126 1.4%
B 0.535s 5 0.1%
A 0 0.0mm 15 N F R | B -4 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.566 seconds.
Shutter B opened to 100.0 percent in 0.536 seconds.
Shutter A closed to 0.1 percent in 0.536 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.12e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9862 IDLE
Wed Jul 1 17:01:11 -04 2026 [elapsed=326 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=878/0 spi=35.9 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Jul 1 17:01 /atlas/obs/04a/61223/04a61223e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Jul 1 17:01:33 -04 2026 [elapsed=348 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (61 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Jul 1 17:01:33 -04 2026 [elapsed=348 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61222.87608554|info|galildriver|using focus model: foc=9830+(3.50)*14.8+(-0.35)*60.3=9860.7
61222.87609021|info|galildriver|o 3 IN | cass: 6102535 30.51 mm b=23 move=NO | arm: 406814 473.60 mm b=03 move=OK | foc: 53278365 9862 um b=0f [cmd]
bestfocus for o...OK
Wed Jul 1 17:01:35 -04 2026 [elapsed=350 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Jul 1 17:02:03 -04 2026 [elapsed=378 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 Jul 1 17:02:04 -04 2026 [elapsed=379 sec] Happy observing!
Wed Jul 1 17:02:04 -04 2026 [elapsed=379 sec] Preflight took 379 seconds to complete.
Wed Jul 1 17:02:04 -04 2026 [elapsed=379 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 0.050s 115 1.3% A 0.081s 385 4.2% A 0.111s 736 8.0% A 0.141s 1196 13.1% A 0.171s 1783 19.5% A 0.201s 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 0.352s 6774 74.0% A 0.383s 7414 81.0% A 0.413s 7990 87.3% A 0.443s 8443 92.2% A 0.473s 8784 96.0% A 0.503s 9021 98.5% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 0 0.0% B 0.050s 105 1.1% B 0.080s 369 4.0% B 0.111s 713 7.8% B 0.141s 1184 12.9% B 0.171s 1751 19.1% B 0.202s 2443 26.7% B 0.232s 3241 35.4% B 0.262s 4135 45.2% B 0.292s 5071 55.4% B 0.323s 5960 65.1% B 0.353s 6750 73.7% B 0.383s 7421 81.1% B 0.413s 7985 87.2% B 0.443s 8444 92.2% B 0.474s 8786 96.0% B 0.504s 9017 98.5% B 0.534s 9136 99.8% B 0.564s 9157 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 8407 91.8% A 0.141s 7958 86.9% A 0.171s 7359 80.4% A 0.202s 6691 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.292s 4038 44.1% A 0.322s 3166 34.6% A 0.353s 2387 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 13 0.1% A 0.565s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9018 98.5% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7954 86.9% B 0.171s 7379 80.6% B 0.201s 6690 73.1% B 0.232s 5892 64.4% B 0.262s 4977 54.4% B 0.292s 4054 44.3% B 0.322s 3164 34.6% B 0.353s 2394 26.2% B 0.383s 1703 18.6% B 0.413s 1145 12.5% B 0.443s 700 7.6% B 0.473s 364 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R