CHL Preflight Night 61289
Executing preflight for 61289 at Sat Sep 5 21:50:04 -04 2026.
Log can be found in /atlas/obs/04/61289/preflight.dat.
Setting donefile '/atlas/obs/04/61289/preflight_complete.20260906015004.23889' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260906015004.23889.
Sat Sep 5 21:50:04 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Sep 5 21:50:04 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [2eaf3a34-0148-4432-9264-deb916ff37ef;1800]
Sat Sep 5 21:50:04 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sat Sep 5 21:50:05 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sat Sep 5 21:50:05 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sat Sep 5 21:50:05 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Sep 5 21:50:05 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1788659402
OK
Sat Sep 5 21:50:05 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Sep 5 21:50:05 -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 Sep 5 21:50:07 -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
Sat Sep 5 21:50:07 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Sep 5 21:50:07 -04 2026 [elapsed=3 sec] CLOCKS
admin: Sun Sep 6 01:50:07 UTC 2026
metbox: 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 867 1024 377 0.230 0.488 0.122
+10.0.11.4 .GPS. 1 u 1007 1024 377 0.489 0.552 0.118
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+alphyn.canonica 132.163.96.1 2 u 49 1024 373 159.270 0.361 1.457
-185.125.190.57 29.88.99.4 2 u 766 1024 377 223.408 -8.530 3.452
-185.125.190.56 29.88.99.4 2 u 725 1024 377 226.211 -9.293 0.702
-185.125.190.58 29.88.99.4 2 u 785 1024 377 234.404 -13.497 1.155
Sat Sep 5 21:50:08 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (9829GB)
200GB available in /atlas/red...OK (13648GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 849G 9.4T 9% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
admin:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 18G 38G 32% /
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 645G 14T 5% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc2:/dev/md0p1 15T 452G 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
Sat Sep 5 21:50:08 -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 Sep 5 21:50:08 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Sat Sep 5 21:50:08 -04 2026 [elapsed=4 sec] SERVICES2
Sat Sep 5 21:50:08 -04 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Sep 5 21:50:12 -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= 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 Sep 5 21:53:01 -04 2026 [elapsed=177 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: 300.54 -27.58, az/alt=324.64 +86.48 idle(e) IDLE
Sat Sep 5 21:53:41 -04 2026 [elapsed=217 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Sep 5 21:54:03 -04 2026 [elapsed=239 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Sat Sep 5 21:54:03 -04 2026 [elapsed=239 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-56.4C)
Checking CCD plane: Z0=-192.00 DZDX=+458.00 DZDY=-420.00
acam: -56C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Sep 5 21:54:03 -04 2026 [elapsed=239 sec] WEATHER
status weather: clear 15.2C 35% 2/2kph@110 DP14.9C/-17C/d IDLE
...OK
Sat Sep 5 21:54:04 -04 2026 [elapsed=240 sec] MET
status...OK
met: c=N o=Y Ro1d Co1d Wo1d Ho1d To1d Do1d IDLE
Sat Sep 5 21:54:04 -04 2026 [elapsed=240 sec] SENTRY
status...OK
sentry: close=NO open=YES drop=YES IDLE
Sat Sep 5 21:54:04 -04 2026 [elapsed=240 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 329.22 -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 3 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 8 0.1%
A 0.051s 108 1.2%
A 0.081s 386 4.2%
A 0.111s 731 8.0%
A 0.141s 1207 13.2%
A 0.172s 1774 19.4%
A 0.202s 2464 26.9%
A 0.232s 3252 35.5%
A 0.263s 4160 45.4%
A 0.293s 5115 55.9%
A 0.323s 5984 65.4%
A 0.353s 6780 74.1%
A 0.384s 7432 81.2%
A 0.414s 8010 87.5%
A 0.444s 8459 92.4%
A 0.475s 8797 96.1%
A 0.505s 9031 98.7%
A 0.535s 9143 99.9%
A 0.566s 9159 100.0%
B 0.020s 1 0.0%
B 0.050s 97 1.1%
B 0.081s 387 4.2%
B 0.111s 735 8.0%
B 0.141s 1191 13.0%
B 0.171s 1782 19.5%
B 0.202s 2469 27.0%
B 0.232s 3256 35.6%
B 0.262s 4170 45.6%
B 0.292s 5111 55.8%
B 0.323s 5996 65.5%
B 0.353s 6804 74.3%
B 0.383s 7432 81.2%
B 0.414s 8011 87.5%
B 0.444s 8459 92.4%
B 0.474s 8793 96.1%
B 0.504s 9033 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9056 98.9%
A 0.081s 8775 95.9%
A 0.111s 8427 92.1%
A 0.141s 7965 87.0%
A 0.172s 7374 80.6%
A 0.202s 6692 73.1%
A 0.232s 5899 64.4%
A 0.263s 4983 54.4%
A 0.293s 4048 44.2%
A 0.323s 3164 34.6%
A 0.354s 2380 26.0%
A 0.384s 1717 18.8%
A 0.414s 1140 12.5%
A 0.445s 702 7.7%
A 0.475s 354 3.9%
A 0.505s 128 1.4%
A 0.536s 10 0.1%
A 0.566s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9033 98.7%
B 0.081s 8762 95.7%
B 0.111s 8407 91.8%
B 0.141s 7941 86.7%
B 0.172s 7358 80.4%
B 0.202s 6662 72.8%
B 0.232s 5870 64.1%
B 0.263s 4958 54.2%
B 0.293s 4005 43.8%
B 0.323s 3140 34.3%
B 0.354s 2351 25.7%
B 0.384s 1696 18.5%
B 0.414s 1133 12.4%
B 0.444s 673 7.4%
B 0.475s 348 3.8%
B 0.505s 119 1.3%
B 0.535s 3 0.0%
A 0 0.0mm 15 N F R | B -5 -0.2mm 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 0.535 seconds.
Shutter A closed to 0.0 percent in 0.566 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=1.22e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[4] foc=9862 IDLE
Sat Sep 5 21:54:38 -04 2026 [elapsed=274 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:
156M Sep 5 21:54 /atlas/obs/04a/61289/04a61289e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Sep 5 21:55:01 -04 2026 [elapsed=297 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (23 seconds old)
OTA humidity level...WARNING (31%)
WARNING (OTA humidity > 25 (31%); )
Dome humidity exists...OK
Dome humidity is current... OK
Sat Sep 5 21:55:01 -04 2026 [elapsed=297 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61289.07987789|info|galildriver|using focus model: foc=9830+(3.50)*14.5+(-0.35)*60.2=9859.7
61289.07988291|info|galildriver|c 4 IN | cass: 9132686 45.66 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 53278550 9861 um b=8f M [focus]
61289.07989050|info|galildriver|c 4 IN | cass: 9132685 45.66 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 53278768 9860 um b=0f [cmd]
bestfocus for c...OK
Sat Sep 5 21:55:03 -04 2026 [elapsed=299 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Sep 5 21:55:32 -04 2026 [elapsed=328 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
Sat Sep 5 21:55:33 -04 2026 [elapsed=329 sec] WARNINGS: OTA humidity > 25 (31%);
Preflight completed with warnings. See
http://tinyurl.com/chlpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sat Sep 5 21:55:33 -04 2026 [elapsed=329 sec] Happy observing!
Sat Sep 5 21:55:33 -04 2026 [elapsed=329 sec] Preflight took 329 seconds to complete.
Sat Sep 5 21:55:33 -04 2026 [elapsed=329 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 120 1.3% A 0.081s 396 4.3% A 0.111s 749 8.2% A 0.141s 1214 13.3% A 0.172s 1804 19.7% A 0.202s 2489 27.2% A 0.232s 3295 36.0% A 0.262s 4204 45.9% A 0.293s 5133 56.1% A 0.323s 6027 65.8% A 0.353s 6796 74.2% A 0.383s 7453 81.4% A 0.414s 8006 87.5% A 0.444s 8457 92.4% A 0.474s 8793 96.1% A 0.504s 9027 98.6% A 0.535s 9137 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 120 1.3% B 0.081s 381 4.2% B 0.111s 728 8.0% B 0.141s 1201 13.1% B 0.171s 1773 19.4% B 0.201s 2468 27.0% B 0.232s 3268 35.7% B 0.262s 4166 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 8000 87.4% B 0.444s 8456 92.4% B 0.474s 8796 96.1% B 0.504s 9023 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 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7959 86.9% A 0.171s 7381 80.6% A 0.201s 6692 73.1% A 0.232s 5894 64.4% A 0.262s 4982 54.4% A 0.292s 4038 44.1% A 0.322s 3194 34.9% A 0.353s 2409 26.3% A 0.383s 1732 18.9% A 0.413s 1164 12.7% A 0.443s 705 7.7% A 0.473s 368 4.0% A 0.504s 132 1.4% A 0.534s 15 0.2% A 0.564s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9026 98.6% B 0.081s 8779 95.9% B 0.111s 8434 92.1% B 0.141s 7969 87.1% B 0.171s 7400 80.8% B 0.201s 6714 73.3% B 0.232s 5919 64.7% B 0.262s 5007 54.7% B 0.292s 4083 44.6% B 0.322s 3191 34.9% B 0.353s 2416 26.4% B 0.383s 1727 18.9% B 0.413s 1159 12.7% B 0.443s 713 7.8% B 0.474s 364 4.0% B 0.504s 137 1.5% B 0.534s 15 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R