CHL Preflight Night 61201
Executing preflight for 61201 at Tue Jun 9 16:51:17 -04 2026.
Log can be found in /atlas/obs/04/61201/preflight.dat.
Setting donefile '/atlas/obs/04/61201/preflight_complete.20260609205117.19784' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260609205117.19784.
Tue Jun 9 16:51:17 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Jun 9 16:51:17 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [fb05f895-e9cc-4358-b8dd-f70542cb0cf4;1800]
Tue Jun 9 16:51:17 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue Jun 9 16:51:18 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue Jun 9 16:51:18 -04 2026 [elapsed=1 sec] auxcam is disabled.
Tue Jun 9 16:51:18 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Jun 9 16:51:18 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1781038272
OK
Tue Jun 9 16:51:18 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Jun 9 16:51:18 -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
Tue Jun 9 16:51:20 -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
Tue Jun 9 16:51:20 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Jun 9 16:51:20 -04 2026 [elapsed=3 sec] CLOCKS
admin: Tue Jun 9 20:51:20 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 410 1024 377 0.327 0.021 0.176
+10.0.11.4 .GPS. 1 u 711 1024 377 0.571 0.124 0.169
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+185.125.190.56 99.220.8.133 2 u 146 1024 377 214.472 -2.682 0.950
-185.125.190.58 146.131.121.246 2 u 725 1024 377 223.986 -7.629 1.301
-alphyn.canonica 132.163.96.1 2 u 221 1024 377 148.092 -4.444 1.628
-185.125.190.57 99.220.8.133 2 u 1028 1024 377 224.502 -8.467 0.982
Tue Jun 9 16:51:21 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3908GB)
200GB available in /atlas/red...OK (8106GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.5T 3.8T 64% /
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 6.0T 7.8T 44% /
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 453G 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 907G 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
Tue Jun 9 16:51:21 -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
Tue Jun 9 16:51:21 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Tue Jun 9 16:51:22 -04 2026 [elapsed=5 sec] SERVICES2
Tue Jun 9 16:51:22 -04 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Jun 9 16:51:26 -04 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=1.33e+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
Tue Jun 9 16:54:23 -04 2026 [elapsed=186 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: 139.04 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Tue Jun 9 16:55:28 -04 2026 [elapsed=251 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Jun 9 16:55:53 -04 2026 [elapsed=276 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Tue Jun 9 16:55:53 -04 2026 [elapsed=276 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 (-54.9C)
Checking CCD plane: Z0=-190.00 DZDX=+468.00 DZDY=-415.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Jun 9 16:55:53 -04 2026 [elapsed=276 sec] WEATHER
status weather: C+ 11.7C 58% 3/6kph@302 DP6.5C/-76C/d IDLE
...OK
Tue Jun 9 16:55:54 -04 2026 [elapsed=277 sec] MET
status...OK
met: c=Y o=N Ro3d Cx12h Wo6d Ho6d To6d Do6d wait C IDLE
Tue Jun 9 16:55:54 -04 2026 [elapsed=277 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Jun 9 16:55:54 -04 2026 [elapsed=277 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 167.72 -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 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 6 0.1%
A 0.051s 109 1.2%
A 0.081s 386 4.2%
A 0.111s 729 8.0%
A 0.141s 1200 13.1%
A 0.172s 1771 19.3%
A 0.202s 2468 27.0%
A 0.232s 3268 35.7%
A 0.262s 4131 45.1%
A 0.292s 5077 55.5%
A 0.323s 5954 65.0%
A 0.353s 6758 73.8%
A 0.383s 7417 81.0%
A 0.414s 7993 87.3%
A 0.444s 8444 92.2%
A 0.474s 8785 96.0%
A 0.505s 9030 98.6%
A 0.535s 9143 99.9%
A 0.565s 9161 100.0%
B 0.020s 2 0.0%
B 0.051s 86 0.9%
B 0.081s 370 4.0%
B 0.111s 733 8.0%
B 0.141s 1190 13.0%
B 0.172s 1778 19.4%
B 0.202s 2469 27.0%
B 0.232s 3255 35.6%
B 0.263s 4170 45.6%
B 0.293s 5111 55.8%
B 0.323s 5996 65.5%
B 0.354s 6781 74.1%
B 0.384s 7451 81.4%
B 0.414s 8026 87.7%
B 0.445s 8471 92.5%
B 0.475s 8802 96.2%
B 0.505s 9037 98.7%
B 0.536s 9150 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9153 100.0%
A 0.051s 9052 98.9%
A 0.081s 8776 95.9%
A 0.111s 8428 92.1%
A 0.142s 7959 86.9%
A 0.172s 7359 80.4%
A 0.203s 6667 72.8%
A 0.233s 5868 64.1%
A 0.263s 4951 54.1%
A 0.294s 4027 44.0%
A 0.324s 3138 34.3%
A 0.354s 2353 25.7%
A 0.384s 1691 18.5%
A 0.415s 1122 12.3%
A 0.445s 690 7.5%
A 0.476s 346 3.8%
A 0.506s 118 1.3%
A 0.536s 7 0.1%
B 0.020s 9149 99.9%
B 0.051s 9045 98.8%
B 0.081s 8782 95.9%
B 0.111s 8431 92.1%
B 0.141s 7976 87.1%
B 0.172s 7397 80.8%
B 0.202s 6710 73.3%
B 0.232s 5924 64.7%
B 0.263s 4989 54.5%
B 0.293s 4035 44.1%
B 0.323s 3194 34.9%
B 0.353s 2396 26.2%
B 0.384s 1734 18.9%
B 0.414s 1167 12.7%
B 0.444s 698 7.6%
B 0.474s 367 4.0%
B 0.505s 131 1.4%
B 0.535s 8 0.1%
A 0 0.0mm 15 N F R | B -4 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.565 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=1.19e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9854 IDLE
Tue Jun 9 16:56:31 -04 2026 [elapsed=314 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 9 16:56 /atlas/obs/04a/61201/04a61201e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Jun 9 16:56:53 -04 2026 [elapsed=336 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (26 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Jun 9 16:56:53 -04 2026 [elapsed=336 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61200.87285015|info|galildriver|using focus model: foc=9830+(3.50)*13.2+(-0.35)*60.3=9855.1
61200.87285482|info|galildriver|o 3 IN | cass: 6105545 30.53 mm b=23 move=NO | arm: 409735 477.00 mm b=23 move=OK | foc: 53280023 9854 um b=0f [cmd]
bestfocus for o...OK
Tue Jun 9 16:56:55 -04 2026 [elapsed=338 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Jun 9 16:57:28 -04 2026 [elapsed=371 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.
Tue Jun 9 16:57:29 -04 2026 [elapsed=372 sec] Happy observing!
Tue Jun 9 16:57:29 -04 2026 [elapsed=372 sec] Preflight took 372 seconds to complete.
Tue Jun 9 16:57:29 -04 2026 [elapsed=372 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 0.050s 115 1.3% A 0.081s 384 4.2% A 0.111s 736 8.0% A 0.141s 1196 13.1% A 0.171s 1782 19.5% A 0.201s 2467 26.9% A 0.232s 3266 35.7% A 0.262s 4175 45.6% A 0.292s 5103 55.7% A 0.322s 5997 65.5% A 0.353s 6776 74.0% A 0.383s 7433 81.2% A 0.413s 8007 87.5% A 0.443s 8445 92.3% A 0.473s 8782 95.9% A 0.504s 9022 98.6% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 1 0.0% B 0.050s 108 1.2% B 0.080s 369 4.0% B 0.111s 716 7.8% B 0.141s 1187 13.0% B 0.171s 1754 19.2% B 0.201s 2445 26.7% B 0.232s 3241 35.4% B 0.262s 4138 45.2% B 0.292s 5075 55.4% B 0.322s 5963 65.1% B 0.353s 6749 73.7% B 0.383s 7418 81.0% B 0.413s 7969 87.1% B 0.443s 8443 92.2% B 0.474s 8787 96.0% B 0.504s 9012 98.4% B 0.534s 9138 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9042 98.8% A 0.081s 8767 95.8% A 0.111s 8408 91.9% A 0.141s 7941 86.7% A 0.171s 7360 80.4% A 0.202s 6668 72.8% A 0.232s 5867 64.1% A 0.262s 4982 54.4% A 0.292s 4038 44.1% A 0.322s 3166 34.6% A 0.353s 2387 26.1% A 0.383s 1709 18.7% A 0.413s 1148 12.5% A 0.443s 693 7.6% A 0.473s 358 3.9% A 0.504s 125 1.4% A 0.534s 14 0.2% A 0.564s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9018 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7950 86.8% B 0.171s 7378 80.6% B 0.202s 6688 73.1% B 0.232s 5892 64.4% B 0.262s 4980 54.4% B 0.292s 4050 44.2% B 0.323s 3163 34.6% B 0.353s 2393 26.1% B 0.383s 1702 18.6% B 0.413s 1147 12.5% B 0.443s 699 7.6% B 0.473s 364 4.0% B 0.504s 138 1.5% B 0.534s 15 0.2% B 0.564s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R