CHL Preflight Night 61166
Executing preflight for 61166 at Tue May 5 17:06:05 -04 2026.
Log can be found in /atlas/obs/04/61166/preflight.dat.
Setting donefile '/atlas/obs/04/61166/preflight_complete.20260505210605.14810' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260505210605.14810.
Tue May 5 17:06:05 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue May 5 17:06:05 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [9093445c-7ff6-41fc-bd8c-8e99ffeadb40;1800]
Tue May 5 17:06:05 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue May 5 17:06:06 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue May 5 17:06:06 -04 2026 [elapsed=1 sec] auxcam is disabled.
Tue May 5 17:06:06 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue May 5 17:06:06 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1778015162
OK
Tue May 5 17:06:06 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue May 5 17:06:06 -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
Tue May 5 17:06:10 -04 2026 [elapsed=5 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
Tue May 5 17:06:10 -04 2026 [elapsed=5 sec] QUEUE
0 observations queued.
Tue May 5 17:06:10 -04 2026 [elapsed=5 sec] CLOCKS
admin: Tue May 5 21:06:10 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 76 1024 377 0.313 0.050 0.971
+10.0.11.4 .GPS. 1 u 982 1024 377 0.588 0.689 0.536
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 702 1024 377 212.494 -8.121 0.950
-185.125.190.58 146.131.121.246 2 u 721 1024 377 215.435 -7.500 5.290
+alphyn.canonica 132.163.96.1 2 u 1017 1024 377 151.348 -5.451 1.012
-185.125.190.56 99.220.8.133 2 u 1034 1024 377 219.817 -9.986 1.677
Tue May 5 17:06:11 -04 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (3500GB)
200GB available in /atlas/red...OK (7075GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.9T 3.4T 68% /
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/loop1 106M 106M 0 100% /snap/core/17292
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
proc1:/dev/md0p1 15T 6.9T 6.8T 51% /
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 538G 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 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 693G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Tue May 5 17:06:12 -04 2026 [elapsed=7 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
Tue May 5 17:06:12 -04 2026 [elapsed=7 sec] Disabling mount tracking.
Tue May 5 17:06:12 -04 2026 [elapsed=7 sec] Closing dome.
Tue May 5 17:06:30 -04 2026 [elapsed=25 sec] SERVICES2
Tue May 5 17:06:30 -04 2026 [elapsed=25 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue May 5 17:06:34 -04 2026 [elapsed=29 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=1.53e+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
Tue May 5 17:09:53 -04 2026 [elapsed=228 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: 108.43 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Tue May 5 17:10:58 -04 2026 [elapsed=293 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue May 5 17:11:23 -04 2026 [elapsed=318 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=1043/0 spi=40.5 IDLE
Tue May 5 17:11:23 -04 2026 [elapsed=318 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 (-53.9C)
Checking CCD plane: Z0=-197.00 DZDX=+460.00 DZDY=-417.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=1043 IDLE
Tue May 5 17:11:23 -04 2026 [elapsed=318 sec] WEATHER
status weather: C 25.0C 19% 7/10kph@300 DP25.8C/-0C/d IDLE
...OK
Tue May 5 17:11:23 -04 2026 [elapsed=318 sec] MET
status...OK
met: c=N o=N Ro2h Cx0 Wo2h Ho2h To2h Do2h wait C IDLE
Tue May 5 17:11:23 -04 2026 [elapsed=318 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue May 5 17:11:23 -04 2026 [elapsed=318 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 137.11 -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 -1 -0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 6 0.1%
A 0.051s 111 1.2%
A 0.081s 398 4.3%
A 0.111s 741 8.1%
A 0.142s 1225 13.4%
A 0.172s 1797 19.6%
A 0.202s 2491 27.2%
A 0.233s 3288 35.9%
A 0.263s 4189 45.8%
A 0.293s 5141 56.2%
A 0.324s 6014 65.7%
A 0.354s 6806 74.4%
A 0.385s 7448 81.4%
A 0.415s 8025 87.7%
A 0.445s 8469 92.5%
A 0.476s 8803 96.2%
A 0.506s 9041 98.8%
A 0.536s 9142 99.9%
A 0.567s 9155 100.0%
B 0.020s 2 0.0%
B 0.050s 87 1.0%
B 0.081s 374 4.1%
B 0.111s 736 8.0%
B 0.142s 1208 13.2%
B 0.172s 1801 19.7%
B 0.202s 2493 27.2%
B 0.233s 3282 35.9%
B 0.263s 4200 45.9%
B 0.293s 5144 56.2%
B 0.324s 6023 65.8%
B 0.354s 6802 74.3%
B 0.384s 7450 81.4%
B 0.415s 8026 87.7%
B 0.445s 8470 92.5%
B 0.475s 8801 96.1%
B 0.506s 9037 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9053 98.9%
A 0.081s 8760 95.7%
A 0.111s 8416 91.9%
A 0.141s 7965 87.0%
A 0.171s 7369 80.5%
A 0.202s 6670 72.9%
A 0.232s 5868 64.1%
A 0.263s 4947 54.0%
A 0.293s 4025 44.0%
A 0.323s 3136 34.3%
A 0.353s 2361 25.8%
A 0.384s 1693 18.5%
A 0.414s 1121 12.2%
A 0.445s 692 7.6%
A 0.475s 346 3.8%
A 0.505s 125 1.4%
A 0.535s 11 0.1%
A 0.566s -4 0.0%
B 0.020s 9148 99.9%
B 0.051s 9040 98.8%
B 0.081s 8770 95.8%
B 0.112s 8417 91.9%
B 0.142s 7959 86.9%
B 0.172s 7376 80.6%
B 0.202s 6685 73.0%
B 0.233s 5897 64.4%
B 0.263s 4987 54.5%
B 0.293s 4033 44.1%
B 0.324s 3141 34.3%
B 0.354s 2349 25.7%
B 0.384s 1698 18.5%
B 0.415s 1150 12.6%
B 0.445s 673 7.4%
B 0.475s 351 3.8%
B 0.506s 126 1.4%
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 0.567 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.566 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=1.23e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9887 IDLE
Tue May 5 17:11:58 -04 2026 [elapsed=353 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=1043/0 spi=40.5 IDLE
taking preflight exposures:
acam...OK
acam image:
159M May 5 17:12 /atlas/obs/04a/61166/04a61166e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue May 5 17:12:20 -04 2026 [elapsed=375 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (69 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue May 5 17:12:20 -04 2026 [elapsed=375 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61165.88357659|info|galildriver|using focus model: foc=9830+(3.50)*22.5+(-0.35)*60.2=9887.7
61165.88358127|info|galildriver|o 3 IN | cass: 6105339 30.53 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53273392 9887 um b=0f [cmd]
bestfocus for o...OK
Tue May 5 17:12:21 -04 2026 [elapsed=376 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue May 5 17:12:55 -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.
Tue May 5 17:12:56 -04 2026 [elapsed=411 sec] Happy observing!
Tue May 5 17:12:56 -04 2026 [elapsed=411 sec] Preflight took 411 seconds to complete.
Tue May 5 17:12:56 -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 2 0.0% A 0.050s 106 1.2% A 0.081s 376 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.171s 1762 19.2% A 0.202s 2442 26.7% A 0.232s 3239 35.4% A 0.262s 4143 45.3% A 0.292s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6752 73.8% A 0.383s 7414 81.0% A 0.413s 7989 87.3% A 0.443s 8444 92.2% A 0.474s 8783 95.9% A 0.504s 9021 98.5% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 119 1.3% B 0.081s 390 4.3% B 0.111s 742 8.1% B 0.141s 1219 13.3% B 0.171s 1795 19.6% B 0.201s 2468 27.0% B 0.232s 3296 36.0% B 0.262s 4167 45.5% B 0.292s 5102 55.7% B 0.322s 5988 65.4% B 0.353s 6773 74.0% B 0.383s 7439 81.3% B 0.413s 8001 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 0.050s 9050 98.9% A 0.081s 8766 95.8% A 0.111s 8421 92.0% A 0.141s 7941 86.7% A 0.172s 7359 80.4% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4981 54.4% A 0.292s 4039 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.414s 1148 12.5% A 0.444s 694 7.6% A 0.474s 358 3.9% A 0.504s 125 1.4% A 0.534s 14 0.2% A 0.565s 2 0.0% B 0.020s 9144 99.9% B 0.050s 9017 98.5% B 0.081s 8771 95.8% B 0.111s 8421 92.0% B 0.141s 7952 86.9% B 0.172s 7359 80.4% B 0.202s 6666 72.8% B 0.232s 5892 64.4% B 0.262s 4979 54.4% B 0.293s 4053 44.3% B 0.323s 3165 34.6% B 0.353s 2393 26.1% B 0.383s 1704 18.6% B 0.414s 1146 12.5% B 0.444s 700 7.6% B 0.474s 356 3.9% B 0.504s 133 1.5% B 0.535s 15 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R