CHL Preflight Night 61163
Executing preflight for 61163 at Sat May 2 17:08:34 -04 2026.
Log can be found in /atlas/obs/04/61163/preflight.dat.
Setting donefile '/atlas/obs/04/61163/preflight_complete.20260502210834.14810' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260502210834.14810.
Sat May 2 17:08:34 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat May 2 17:08:34 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [fdb98087-fc4d-4dd2-ae63-f5c99159d7a7;1800]
Sat May 2 17:08:34 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sat May 2 17:08:35 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sat May 2 17:08:35 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sat May 2 17:08:35 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat May 2 17:08:35 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777756113
OK
Sat May 2 17:08:35 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat May 2 17:08:35 -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
Sat May 2 17:08:36 -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
Sat May 2 17:08:37 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat May 2 17:08:37 -04 2026 [elapsed=3 sec] CLOCKS
admin: Sat May 2 21:08:37 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 213 512 377 0.240 1.099 0.727
*10.0.11.4 .GPS. 1 u 288 512 377 0.552 0.319 0.531
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 228 512 377 218.103 -10.863 0.775
-185.125.190.58 146.131.121.246 2 u 253 512 377 218.689 -10.449 1.373
+alphyn.canonica 132.163.96.1 2 u 258 512 377 151.390 -5.589 3.837
-185.125.190.56 29.88.99.4 2 u 30 1024 377 217.828 -9.717 1.286
Sat May 2 17:08:38 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3594GB)
200GB available in /atlas/red...OK (7374GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.8T 3.5T 67% /
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/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 6.7T 7.1T 49% /
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 447G 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
Sat May 2 17:08:38 -04 2026 [elapsed=4 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
Sat May 2 17:08:38 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Sat May 2 17:08:38 -04 2026 [elapsed=4 sec] Closing dome.
Sat May 2 17:09:29 -04 2026 [elapsed=55 sec] SERVICES2
Sat May 2 17:09:30 -04 2026 [elapsed=56 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat May 2 17:09:34 -04 2026 [elapsed=60 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
Sat May 2 17:12:55 -04 2026 [elapsed=261 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: 106.24 -27.58, az/alt=324.56 +86.48 idle(e) IDLE
Sat May 2 17:14:01 -04 2026 [elapsed=327 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat May 2 17:14:25 -04 2026 [elapsed=351 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=1035/0 spi=38.7 IDLE
Sat May 2 17:14:25 -04 2026 [elapsed=351 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (1 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.4C)
Checking CCD plane: Z0=-199.00 DZDX=+466.00 DZDY=-411.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=1035 IDLE
Sat May 2 17:14:25 -04 2026 [elapsed=351 sec] WEATHER
status weather: clear 27.7C 10% 9/14kph@295 DP32.5C/-82C/d IDLE
...OK
Sat May 2 17:14:26 -04 2026 [elapsed=352 sec] MET
status...OK
met: c=N o=Y Ro5d Co4d Wo27d Ho27d To27d Do27d IDLE
Sat May 2 17:14:26 -04 2026 [elapsed=352 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat May 2 17:14:26 -04 2026 [elapsed=352 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 134.91 -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 2 0.1mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 8 0.1%
A 0.051s 99 1.1%
A 0.081s 379 4.1%
A 0.111s 715 7.8%
A 0.141s 1188 13.0%
A 0.172s 1777 19.4%
A 0.202s 2445 26.7%
A 0.232s 3263 35.6%
A 0.263s 4161 45.5%
A 0.293s 5107 55.8%
A 0.323s 5984 65.4%
A 0.354s 6784 74.1%
A 0.384s 7432 81.2%
A 0.414s 8006 87.5%
A 0.445s 8456 92.4%
A 0.475s 8792 96.0%
A 0.506s 9028 98.6%
A 0.536s 9137 99.8%
A 0.566s 9154 100.0%
B 0.020s 3 0.0%
B 0.050s 94 1.0%
B 0.081s 387 4.2%
B 0.111s 748 8.2%
B 0.141s 1208 13.2%
B 0.171s 1803 19.7%
B 0.202s 2493 27.2%
B 0.232s 3281 35.8%
B 0.262s 4201 45.9%
B 0.293s 5142 56.2%
B 0.323s 6023 65.8%
B 0.354s 6802 74.3%
B 0.384s 7449 81.4%
B 0.414s 8026 87.7%
B 0.445s 8483 92.7%
B 0.475s 8801 96.1%
B 0.505s 9042 98.8%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9051 98.9%
A 0.081s 8757 95.7%
A 0.111s 8414 91.9%
A 0.141s 7946 86.8%
A 0.172s 7353 80.3%
A 0.202s 6667 72.8%
A 0.232s 5867 64.1%
A 0.263s 4945 54.0%
A 0.293s 4026 44.0%
A 0.323s 3110 34.0%
A 0.354s 2357 25.7%
A 0.384s 1672 18.3%
A 0.414s 1123 12.3%
A 0.444s 680 7.4%
A 0.475s 338 3.7%
A 0.505s 119 1.3%
A 0.535s 9 0.1%
B 0.020s 9149 99.9%
B 0.051s 9046 98.8%
B 0.081s 8781 95.9%
B 0.111s 8429 92.1%
B 0.142s 7960 87.0%
B 0.172s 7378 80.6%
B 0.202s 6710 73.3%
B 0.233s 5898 64.4%
B 0.263s 4989 54.5%
B 0.293s 4034 44.1%
B 0.324s 3169 34.6%
B 0.354s 2374 25.9%
B 0.384s 1717 18.8%
B 0.414s 1152 12.6%
B 0.445s 686 7.5%
B 0.475s 360 3.9%
B 0.505s 126 1.4%
B 0.535s 8 0.1%
A 0 0.0mm 15 N F R | B 0 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 0.1 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=1.14e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9898 IDLE
Sat May 2 17:15:03 -04 2026 [elapsed=389 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=1035/0 spi=38.7 IDLE
taking preflight exposures:
acam...OK
acam image:
159M May 2 17:15 /atlas/obs/04a/61163/04a61163e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat May 2 17:15:25 -04 2026 [elapsed=411 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (79 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat May 2 17:15:25 -04 2026 [elapsed=411 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61162.88571742|info|galildriver|using focus model: foc=9830+(3.50)*25.8+(-0.35)*60.3=9899.2
61162.88572209|info|galildriver|o 3 IN | cass: 6103542 30.52 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53271054 9899 um b=0f [cmd]
bestfocus for o...OK
Sat May 2 17:15:26 -04 2026 [elapsed=412 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat May 2 17:15:59 -04 2026 [elapsed=445 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.
Sat May 2 17:16:00 -04 2026 [elapsed=446 sec] Happy observing!
Sat May 2 17:16:00 -04 2026 [elapsed=446 sec] Preflight took 446 seconds to complete.
Sat May 2 17:16:00 -04 2026 [elapsed=446 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 108 1.2% A 0.081s 385 4.2% A 0.111s 736 8.0% A 0.141s 1181 12.9% A 0.172s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3238 35.4% A 0.262s 4175 45.6% A 0.293s 5074 55.4% A 0.323s 5968 65.2% A 0.353s 6754 73.8% A 0.383s 7413 81.0% A 0.413s 7989 87.3% A 0.444s 8445 92.3% A 0.474s 8783 95.9% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 104 1.1% B 0.081s 370 4.0% B 0.111s 715 7.8% B 0.141s 1184 12.9% B 0.171s 1753 19.2% B 0.202s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4136 45.2% B 0.292s 5073 55.4% B 0.323s 5959 65.1% B 0.353s 6749 73.7% B 0.383s 7421 81.1% B 0.413s 7985 87.2% B 0.443s 8443 92.2% B 0.474s 8786 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 9152 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 0.172s 7359 80.4% A 0.202s 6668 72.8% A 0.232s 5894 64.4% A 0.262s 4950 54.1% A 0.292s 4009 43.8% A 0.323s 3165 34.6% A 0.353s 2387 26.1% A 0.383s 1711 18.7% A 0.413s 1148 12.5% A 0.444s 693 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 9143 99.9% B 0.050s 9017 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.171s 7378 80.6% B 0.202s 6687 73.1% B 0.232s 5890 64.3% B 0.262s 4979 54.4% B 0.292s 4054 44.3% B 0.323s 3163 34.6% B 0.353s 2392 26.1% B 0.383s 1703 18.6% B 0.413s 1147 12.5% B 0.444s 699 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 13 0.1% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R