CHL Preflight Night 61202
Executing preflight for 61202 at Wed Jun 10 16:51:21 -04 2026.
Log can be found in /atlas/obs/04/61202/preflight.dat.
Setting donefile '/atlas/obs/04/61202/preflight_complete.20260610205121.19784' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260610205121.19784.
Wed Jun 10 16:51:21 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Jun 10 16:51:21 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [e8603fb8-3da4-48a6-a20f-c259c3c95e45;1800]
Wed Jun 10 16:51:21 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Wed Jun 10 16:51:22 -04 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Wed Jun 10 16:51:22 -04 2026 [elapsed=1 sec] auxcam is disabled.
Wed Jun 10 16:51:22 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Jun 10 16:51:22 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1781124677
OK
Wed Jun 10 16:51:22 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Jun 10 16:51:22 -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 Jun 10 16:51:23 -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
Wed Jun 10 16:51:23 -04 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Wed Jun 10 16:51:23 -04 2026 [elapsed=2 sec] CLOCKS
admin: Wed Jun 10 20:51:23 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 323 1024 377 0.299 -0.350 0.512
+10.0.11.4 .GPS. 1 u 642 1024 377 0.578 -0.373 0.706
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+185.125.190.56 29.88.99.4 2 u 980 1024 377 211.789 -1.818 1.007
-185.125.190.58 146.131.121.246 2 u 664 1024 377 211.903 -1.833 0.839
-alphyn.canonica 132.163.96.1 2 u 1023 1024 277 146.553 -4.522 1.336
-185.125.190.57 29.88.99.4 2 u 902 1024 357 212.034 -2.301 1.019
Wed Jun 10 16:51:25 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (4015GB)
200GB available in /atlas/red...OK (8246GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.4T 3.9T 63% /
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 5.8T 7.9T 43% /
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 449G 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/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
Wed Jun 10 16:51:25 -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
Wed Jun 10 16:51:25 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Wed Jun 10 16:51:25 -04 2026 [elapsed=4 sec] SERVICES2
Wed Jun 10 16:51:25 -04 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Jun 10 16:51:29 -04 2026 [elapsed=8 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=1.5e+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 Jun 10 16:54:32 -04 2026 [elapsed=191 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: 140.07 -27.58, az/alt=324.52 +86.48 idle(e) IDLE
Wed Jun 10 16:55:38 -04 2026 [elapsed=257 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Jun 10 16:56:03 -04 2026 [elapsed=282 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Wed Jun 10 16:56:03 -04 2026 [elapsed=282 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 (-55.4C)
Checking CCD plane: Z0=-188.00 DZDX=+476.00 DZDY=-414.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Jun 10 16:56:03 -04 2026 [elapsed=282 sec] WEATHER
status weather: R 9.7C 61% 12/14kph@215 DP6.7C/-19C/d IDLE
...OK
Wed Jun 10 16:56:04 -04 2026 [elapsed=283 sec] MET
status...OK
met: c=Y o=N Rx5 Cx1d Wo7d Ho7d To7d Do7d wait RC IDLE
Wed Jun 10 16:56:04 -04 2026 [elapsed=283 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Jun 10 16:56:04 -04 2026 [elapsed=283 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 168.75 -12.93, az/alt=59.87 +60.08 tracking(w) IDLE 0s
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 -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 5 0.1%
A 0.051s 101 1.1%
A 0.081s 384 4.2%
A 0.111s 727 7.9%
A 0.142s 1201 13.1%
A 0.172s 1772 19.4%
A 0.202s 2468 27.0%
A 0.232s 3265 35.7%
A 0.263s 4131 45.1%
A 0.293s 5080 55.5%
A 0.323s 5983 65.4%
A 0.354s 6783 74.1%
A 0.384s 7436 81.2%
A 0.414s 8010 87.5%
A 0.445s 8458 92.4%
A 0.475s 8795 96.1%
A 0.505s 9031 98.7%
A 0.536s 9144 99.9%
A 0.566s 9162 100.0%
B 0.020s 2 0.0%
B 0.050s 95 1.0%
B 0.081s 382 4.2%
B 0.111s 747 8.2%
B 0.141s 1192 13.0%
B 0.171s 1779 19.4%
B 0.202s 2493 27.2%
B 0.232s 3257 35.6%
B 0.262s 4171 45.6%
B 0.292s 5144 56.2%
B 0.323s 6023 65.8%
B 0.353s 6805 74.3%
B 0.383s 7452 81.4%
B 0.414s 8028 87.7%
B 0.444s 8473 92.6%
B 0.474s 8802 96.2%
B 0.505s 9038 98.7%
B 0.535s 9152 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9058 99.0%
A 0.081s 8775 95.9%
A 0.111s 8430 92.1%
A 0.141s 7968 87.0%
A 0.172s 7375 80.6%
A 0.202s 6669 72.9%
A 0.233s 5894 64.4%
A 0.263s 4950 54.1%
A 0.293s 4026 44.0%
A 0.323s 3137 34.3%
A 0.354s 2357 25.7%
A 0.384s 1689 18.5%
A 0.414s 1121 12.2%
A 0.445s 690 7.5%
A 0.475s 345 3.8%
A 0.505s 125 1.4%
A 0.536s 8 0.1%
B 0.020s 9149 99.9%
B 0.050s 9044 98.8%
B 0.081s 8775 95.9%
B 0.111s 8407 91.8%
B 0.141s 7944 86.8%
B 0.172s 7378 80.6%
B 0.202s 6687 73.1%
B 0.232s 5898 64.4%
B 0.262s 4989 54.5%
B 0.293s 4037 44.1%
B 0.323s 3170 34.6%
B 0.353s 2374 25.9%
B 0.384s 1713 18.7%
B 0.414s 1153 12.6%
B 0.444s 685 7.5%
B 0.474s 356 3.9%
B 0.505s 127 1.4%
B 0.535s 4 0.0%
A 1 0.0mm 15 N F R | B -7 -0.2mm 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 0.535 seconds.
Shutter A closed to 0.1 percent in 0.536 seconds.
Shutter B closed to 0.0 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.17e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9850 IDLE
Wed Jun 10 16:56:49 -04 2026 [elapsed=328 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Jun 10 16:57 /atlas/obs/04a/61202/04a61202e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Jun 10 16:57:12 -04 2026 [elapsed=351 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (45 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Jun 10 16:57:12 -04 2026 [elapsed=351 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61201.87306353|info|galildriver|using focus model: foc=9830+(3.50)*10.6+(-0.35)*60.3=9846.0
61201.87306855|info|galildriver|o 3 IN | cass: 6106560 30.53 mm b=23 move=NO | arm: 409735 477.00 mm b=23 move=OK | foc: 53280887 9850 um b=8f M [focus]
61201.87307871|info|galildriver|o 3 IN | cass: 6106554 30.53 mm b=23 move=NO | arm: 409735 477.00 mm b=23 move=OK | foc: 53281259 9848 um b=0f [cmd]
bestfocus for o...OK
Wed Jun 10 16:57:15 -04 2026 [elapsed=354 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Jun 10 16:57:48 -04 2026 [elapsed=387 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 Jun 10 16:57:50 -04 2026 [elapsed=389 sec] Happy observing!
Wed Jun 10 16:57:50 -04 2026 [elapsed=389 sec] Preflight took 389 seconds to complete.
Wed Jun 10 16:57:50 -04 2026 [elapsed=389 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 121 1.3% A 0.081s 397 4.3% A 0.111s 748 8.2% A 0.142s 1215 13.3% A 0.172s 1803 19.7% A 0.202s 2514 27.5% A 0.232s 3294 36.0% A 0.263s 4236 46.3% A 0.293s 5133 56.1% A 0.323s 6025 65.8% A 0.353s 6798 74.3% A 0.384s 7452 81.4% A 0.414s 8023 87.6% A 0.444s 8470 92.5% A 0.474s 8802 96.2% A 0.505s 9032 98.7% A 0.535s 9139 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 111 1.2% B 0.081s 379 4.1% B 0.111s 715 7.8% B 0.141s 1202 13.1% B 0.171s 1774 19.4% B 0.202s 2443 26.7% B 0.232s 3239 35.4% B 0.262s 4137 45.2% B 0.292s 5074 55.4% B 0.322s 5961 65.1% B 0.353s 6749 73.7% B 0.383s 7419 81.0% B 0.413s 7985 87.2% B 0.443s 8443 92.2% B 0.474s 8787 96.0% B 0.504s 9017 98.5% B 0.534s 9137 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9056 98.9% A 0.081s 8787 96.0% A 0.111s 8433 92.1% A 0.141s 7975 87.1% A 0.171s 7400 80.8% A 0.202s 6716 73.4% A 0.232s 5922 64.7% A 0.262s 5012 54.8% A 0.292s 4069 44.5% A 0.322s 3193 34.9% A 0.353s 2410 26.3% A 0.383s 1731 18.9% A 0.413s 1180 12.9% A 0.443s 720 7.9% A 0.473s 376 4.1% A 0.504s 138 1.5% A 0.534s 17 0.2% A 0.564s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9011 98.4% B 0.081s 8762 95.7% B 0.111s 8407 91.8% B 0.141s 7935 86.7% B 0.172s 7358 80.4% B 0.202s 6667 72.8% B 0.232s 5865 64.1% B 0.262s 4950 54.1% B 0.292s 4021 43.9% B 0.323s 3135 34.2% B 0.353s 2371 25.9% B 0.383s 1684 18.4% B 0.413s 1146 12.5% B 0.444s 687 7.5% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 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