CHL Preflight Night 61304
Executing preflight for 61304 at Sun Sep 20 18:40:24 -03 2026.
Log can be found in /atlas/obs/04/61304/preflight.dat.
Setting donefile '/atlas/obs/04/61304/preflight_complete.20260920214024.8183' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260920214024.8183.
Sun Sep 20 18:40:24 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Sep 20 18:40:24 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [87712c37-60f6-4023-be09-04f1c6c60dd6;1800]
Sun Sep 20 18:40:24 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sun Sep 20 18:40:25 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sun Sep 20 18:40:25 -03 2026 [elapsed=1 sec] auxcam is disabled.
Sun Sep 20 18:40:25 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun Sep 20 18:40:25 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1789940421
OK
Sun Sep 20 18:40:25 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun Sep 20 18:40:25 -03 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 Sep 20 18:40:26 -03 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
Sun Sep 20 18:40:27 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sun Sep 20 18:40:27 -03 2026 [elapsed=3 sec] CLOCKS
admin: Sun Sep 20 21:40:27 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 911 1024 377 0.325 0.916 0.410
*10.0.11.4 .GPS. 1 u 139 1024 377 0.394 0.980 0.302
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+alphyn.canonica 132.163.96.1 2 u 552 1024 377 151.595 -6.747 1.073
-185.125.190.57 29.88.99.4 2 u 97 1024 377 226.797 -9.440 1.467
-185.125.190.56 29.88.99.4 2 u 742 1024 377 222.555 -7.750 2.687
-185.125.190.58 29.88.99.4 2 u 975 1024 377 231.084 -11.071 0.855
Sun Sep 20 18:40:28 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (9288GB)
200GB available in /atlas/red...OK (12443GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 1.4T 8.9T 14% /
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 17G 38G 32% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 1.8T 12T 14% /
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
Sun Sep 20 18:40:28 -03 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
Sun Sep 20 18:40:28 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Sun Sep 20 18:40:29 -03 2026 [elapsed=5 sec] SERVICES2
Sun Sep 20 18:40:29 -03 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Sep 20 18:40:33 -03 2026 [elapsed=9 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=1.56e+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 Sep 20 18:43:51 -03 2026 [elapsed=207 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: 252.94 -27.58, az/alt=324.65 +86.49 idle(e) IDLE
Sun Sep 20 18:44:49 -03 2026 [elapsed=265 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Sep 20 18:45:11 -03 2026 [elapsed=287 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.8 IDLE
Sun Sep 20 18:45:11 -03 2026 [elapsed=287 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (6 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.6C)
Checking CCD plane: Z0=-193.00 DZDX=+454.00 DZDY=-422.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Sep 20 18:45:11 -03 2026 [elapsed=287 sec] WEATHER
status weather: C+ 20.7C 28% 7/16kph@302 DP18.1C/-19C/d IDLE
...OK
Sun Sep 20 18:45:12 -03 2026 [elapsed=288 sec] MET
status...OK
met: c=N o=N Ro6h Cx1 Wo13d Ho13d To13d Do2d wait C IDLE
Sun Sep 20 18:45:12 -03 2026 [elapsed=288 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Sep 20 18:45:14 -03 2026 [elapsed=290 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 281.61 -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 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 6 0.1%
A 0.051s 105 1.1%
A 0.081s 380 4.2%
A 0.111s 729 8.0%
A 0.142s 1186 13.0%
A 0.172s 1755 19.2%
A 0.202s 2440 26.7%
A 0.232s 3233 35.3%
A 0.263s 4161 45.5%
A 0.293s 5112 55.8%
A 0.323s 5985 65.4%
A 0.354s 6779 74.1%
A 0.384s 7430 81.2%
A 0.414s 8010 87.5%
A 0.445s 8459 92.4%
A 0.475s 8795 96.1%
A 0.506s 9029 98.6%
A 0.540s 9141 99.9%
A 0.576s 9158 100.0%
B 0.020s 3 0.0%
B 0.051s 98 1.1%
B 0.081s 385 4.2%
B 0.111s 750 8.2%
B 0.142s 1210 13.2%
B 0.172s 1801 19.7%
B 0.202s 2493 27.2%
B 0.233s 3283 35.9%
B 0.263s 4201 45.9%
B 0.293s 5144 56.2%
B 0.323s 6024 65.8%
B 0.354s 6803 74.3%
B 0.384s 7451 81.4%
B 0.415s 8043 87.9%
B 0.445s 8485 92.7%
B 0.475s 8811 96.3%
B 0.506s 9042 98.8%
B 0.536s 9150 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9047 98.8%
A 0.081s 8762 95.7%
A 0.111s 8411 91.9%
A 0.142s 7942 86.8%
A 0.172s 7358 80.4%
A 0.202s 6666 72.8%
A 0.233s 5872 64.1%
A 0.263s 4950 54.1%
A 0.293s 4022 43.9%
A 0.323s 3138 34.3%
A 0.354s 2355 25.7%
A 0.384s 1676 18.3%
A 0.415s 1108 12.1%
A 0.445s 677 7.4%
A 0.475s 337 3.7%
A 0.506s 116 1.3%
A 0.536s 8 0.1%
B 0.020s 9149 99.9%
B 0.050s 9039 98.7%
B 0.081s 8771 95.8%
B 0.111s 8419 92.0%
B 0.141s 7960 87.0%
B 0.171s 7378 80.6%
B 0.202s 6688 73.1%
B 0.232s 5897 64.4%
B 0.263s 4989 54.5%
B 0.293s 4036 44.1%
B 0.323s 3168 34.6%
B 0.353s 2375 25.9%
B 0.384s 1716 18.7%
B 0.414s 1151 12.6%
B 0.444s 687 7.5%
B 0.475s 360 3.9%
B 0.505s 126 1.4%
B 0.535s 7 0.1%
A 0 0.0mm 15 N F R | B -2 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.576 seconds.
Shutter B opened to 100.0 percent in 0.536 seconds.
Shutter A closed to 0.1 percent in 0.536 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=1.23e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9871 IDLE
Sun Sep 20 18:45:50 -03 2026 [elapsed=326 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.8 IDLE
taking preflight exposures:
acam...OK
acam image:
159M Sep 20 18:46 /atlas/obs/04a/61304/04a61304e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Sep 20 18:46:12 -03 2026 [elapsed=348 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (34 seconds old)
OTA humidity level...OK (9%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Sep 20 18:46:12 -03 2026 [elapsed=348 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61303.90709606|info|galildriver|using focus model: foc=9830+(3.50)*17.7+(-0.35)*60.3=9870.9
61303.90710074|info|galildriver|o 3 IN | cass: 6104422 30.52 mm b=23 move=NO | arm: 406790 473.57 mm b=03 move=OK | foc: 53276538 9872 um b=0f [cmd]
bestfocus for o...OK
Sun Sep 20 18:46:13 -03 2026 [elapsed=349 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Sep 20 18:46:42 -03 2026 [elapsed=378 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 Sep 20 18:46:43 -03 2026 [elapsed=379 sec] Happy observing!
Sun Sep 20 18:46:43 -03 2026 [elapsed=379 sec] Preflight took 379 seconds to complete.
Sun Sep 20 18:46:43 -03 2026 [elapsed=379 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 113 1.2% A 0.081s 384 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3267 35.7% A 0.262s 4173 45.6% A 0.292s 5104 55.8% A 0.322s 5998 65.5% A 0.353s 6774 74.0% A 0.383s 7433 81.2% A 0.413s 7987 87.3% A 0.443s 8446 92.3% A 0.473s 8785 96.0% A 0.504s 9022 98.6% A 0.534s 9137 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.050s 107 1.2% B 0.080s 369 4.0% B 0.111s 715 7.8% B 0.141s 1185 12.9% B 0.171s 1752 19.1% B 0.201s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4137 45.2% B 0.292s 5072 55.4% B 0.322s 5932 64.8% B 0.352s 6727 73.5% B 0.382s 7400 80.8% B 0.413s 7969 87.1% B 0.443s 8430 92.1% B 0.473s 8777 95.9% B 0.503s 9011 98.4% B 0.534s 9135 99.8% B 0.564s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9050 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 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4981 54.4% A 0.292s 4038 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1146 12.5% A 0.444s 692 7.6% A 0.474s 358 3.9% A 0.504s 124 1.4% A 0.534s 13 0.1% A 0.565s 1 0.0% B 0.020s 9145 99.9% B 0.050s 9022 98.6% B 0.081s 8775 95.9% B 0.111s 8423 92.0% B 0.141s 7955 86.9% B 0.171s 7381 80.6% B 0.202s 6691 73.1% B 0.232s 5921 64.7% B 0.262s 4984 54.4% B 0.292s 4087 44.6% B 0.322s 3193 34.9% B 0.353s 2417 26.4% B 0.383s 1722 18.8% B 0.413s 1164 12.7% B 0.443s 712 7.8% B 0.473s 366 4.0% B 0.504s 139 1.5% B 0.534s 16 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R