CHL Preflight Night 61164
Executing preflight for 61164 at Sun May 3 17:07:49 -04 2026.
Log can be found in /atlas/obs/04/61164/preflight.dat.
Setting donefile '/atlas/obs/04/61164/preflight_complete.20260503210749.14810' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260503210749.14810.
Sun May 3 17:07:49 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun May 3 17:07:49 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [1d7e621f-a843-4f96-ad3f-b799f43b47f6;1800]
Sun May 3 17:07:49 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sun May 3 17:07:50 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sun May 3 17:07:50 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sun May 3 17:07:50 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun May 3 17:07:50 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777842463
OK
Sun May 3 17:07:50 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun May 3 17:07:50 -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
Sun May 3 17:07:52 -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
Sun May 3 17:07:53 -04 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Sun May 3 17:07:53 -04 2026 [elapsed=4 sec] CLOCKS
admin: Sun May 3 21:07:53 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 419 512 377 0.266 0.534 0.301
+10.0.11.4 .GPS. 1 u 289 512 377 0.646 0.728 0.220
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 886 1024 377 218.770 -11.105 2.754
-185.125.190.58 146.131.121.246 2 u 73 1024 377 218.845 -10.643 2.255
+alphyn.canonica 132.163.96.1 2 u 518 512 377 150.456 -5.600 0.853
-185.125.190.56 146.131.121.246 2 u 152 1024 377 219.218 -9.823 0.656
Sun May 3 17:07:54 -04 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (3574GB)
200GB available in /atlas/red...OK (7345GB)
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
Sun May 3 17:07:55 -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
Sun May 3 17:07:55 -04 2026 [elapsed=6 sec] Disabling mount tracking.
Sun May 3 17:07:55 -04 2026 [elapsed=6 sec] SERVICES2
Sun May 3 17:07:55 -04 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun May 3 17:07:59 -04 2026 [elapsed=10 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= 914kB time=00:00:29.24 bitrate= 256.0kbits/s speed=1.34e+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
Sun May 3 17:11:22 -04 2026 [elapsed=213 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: 106.83 -27.58, az/alt=324.56 +86.48 idle(e) IDLE
Sun May 3 17:12:28 -04 2026 [elapsed=279 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun May 3 17:12:52 -04 2026 [elapsed=303 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Sun May 3 17:12:52 -04 2026 [elapsed=303 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 (-53.6C)
Checking CCD plane: Z0=-198.00 DZDX=+466.00 DZDY=-412.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun May 3 17:12:52 -04 2026 [elapsed=303 sec] WEATHER
status weather: C 25.7C 17% 10/15kph@278 DP26.0C/-35C/d IDLE
...OK
Sun May 3 17:12:53 -04 2026 [elapsed=304 sec] MET
status...OK
met: c=N o=Y Ro6d Co5d Wo28d Ho28d To28d Do28d IDLE
Sun May 3 17:12:53 -04 2026 [elapsed=304 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun May 3 17:12:53 -04 2026 [elapsed=304 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 135.51 -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 9 0.1%
A 0.051s 118 1.3%
A 0.081s 399 4.4%
A 0.111s 739 8.1%
A 0.142s 1222 13.3%
A 0.172s 1794 19.6%
A 0.202s 2489 27.2%
A 0.233s 3292 36.0%
A 0.263s 4196 45.8%
A 0.293s 5137 56.1%
A 0.324s 6009 65.6%
A 0.354s 6806 74.4%
A 0.384s 7453 81.4%
A 0.415s 8028 87.7%
A 0.445s 8467 92.5%
A 0.475s 8812 96.3%
A 0.506s 9038 98.7%
A 0.536s 9141 99.9%
A 0.566s 9154 100.0%
B 0.020s 1 0.0%
B 0.051s 88 1.0%
B 0.081s 387 4.2%
B 0.112s 749 8.2%
B 0.142s 1206 13.2%
B 0.172s 1802 19.7%
B 0.203s 2493 27.2%
B 0.233s 3281 35.8%
B 0.264s 4203 45.9%
B 0.294s 5174 56.5%
B 0.324s 6049 66.1%
B 0.355s 6824 74.5%
B 0.385s 7470 81.6%
B 0.415s 8043 87.9%
B 0.446s 8484 92.7%
B 0.476s 8809 96.2%
B 0.506s 9041 98.8%
B 0.537s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9059 99.0%
A 0.081s 8768 95.8%
A 0.111s 8427 92.1%
A 0.141s 7962 87.0%
A 0.172s 7373 80.5%
A 0.202s 6688 73.1%
A 0.232s 5896 64.4%
A 0.263s 4981 54.4%
A 0.293s 4056 44.3%
A 0.324s 3136 34.3%
A 0.354s 2354 25.7%
A 0.384s 1695 18.5%
A 0.415s 1123 12.3%
A 0.445s 693 7.6%
A 0.475s 348 3.8%
A 0.506s 124 1.4%
A 0.536s 12 0.1%
A 0.567s -3 0.0%
B 0.020s 9149 99.9%
B 0.051s 9039 98.7%
B 0.081s 8771 95.8%
B 0.111s 8417 91.9%
B 0.142s 7960 87.0%
B 0.172s 7377 80.6%
B 0.202s 6663 72.8%
B 0.233s 5872 64.1%
B 0.263s 4988 54.5%
B 0.294s 4006 43.8%
B 0.324s 3141 34.3%
B 0.354s 2351 25.7%
B 0.384s 1698 18.5%
B 0.415s 1134 12.4%
B 0.445s 675 7.4%
B 0.475s 352 3.8%
B 0.506s 120 1.3%
B 0.536s 6 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 0.566 seconds.
Shutter B opened to 99.9 percent in 0.537 seconds.
Shutter A closed to 0.0 percent in 0.567 seconds.
Shutter B closed to 0.1 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 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=9892 IDLE
Sun May 3 17:13:28 -04 2026 [elapsed=339 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
taking preflight exposures:
acam...OK
acam image:
159M May 3 17:13 /atlas/obs/04a/61164/04a61164e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun May 3 17:13:50 -04 2026 [elapsed=361 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (74 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun May 3 17:13:50 -04 2026 [elapsed=361 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61163.88461790|info|galildriver|using focus model: foc=9830+(3.50)*24.1+(-0.35)*60.2=9893.3
61163.88462258|info|galildriver|o 3 IN | cass: 6104590 30.52 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53272261 9893 um b=0f [cmd]
bestfocus for o...OK
Sun May 3 17:13:51 -04 2026 [elapsed=362 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun May 3 17:14:25 -04 2026 [elapsed=396 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.
Sun May 3 17:14:26 -04 2026 [elapsed=397 sec] Happy observing!
Sun May 3 17:14:26 -04 2026 [elapsed=397 sec] Preflight took 397 seconds to complete.
Sun May 3 17:14:26 -04 2026 [elapsed=397 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