CHL Preflight Night 61228
Executing preflight for 61228 at Mon Jul 6 16:57:56 -04 2026.
Log can be found in /atlas/obs/04/61228/preflight.dat.
Setting donefile '/atlas/obs/04/61228/preflight_complete.20260706205756.26847' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260706205756.26847.
Mon Jul 6 16:57:56 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Jul 6 16:57:56 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [e59d2eb9-6d31-45f4-8e0a-43398a2dae00;1800]
Mon Jul 6 16:57:56 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Mon Jul 6 16:57:57 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Mon Jul 6 16:57:57 -04 2026 [elapsed=1 sec] auxcam is disabled.
Mon Jul 6 16:57:57 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Jul 6 16:57:57 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1783371475
OK
Mon Jul 6 16:57:57 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Jul 6 16:57:57 -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
Mon Jul 6 16:57:58 -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
Mon Jul 6 16:57:59 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Jul 6 16:57:59 -04 2026 [elapsed=3 sec] CLOCKS
admin: Mon Jul 6 20:57:59 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 416 1024 377 0.288 0.017 0.363
+10.0.11.4 .GPS. 1 u 424 1024 377 0.554 0.152 0.330
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-alphyn.canonica 132.163.96.1 2 u 242 1024 377 148.225 -5.648 1.476
-185.125.190.56 99.220.8.133 2 u 601 1024 377 222.276 -6.462 1.368
-185.125.190.58 99.220.8.133 2 u 567 1024 377 215.860 -3.673 1.920
+185.125.190.57 99.220.8.133 2 u 837 1024 377 210.327 -1.649 1.532
Mon Jul 6 16:58:00 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (4607GB)
200GB available in /atlas/red...OK (8793GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.9T 4.4T 57% /
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 18G 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 5.3T 8.4T 39% /
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc2:/dev/md0p1 15T 451G 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/17284
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17292
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
Mon Jul 6 16:58:00 -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
Mon Jul 6 16:58:00 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Mon Jul 6 16:58:00 -04 2026 [elapsed=4 sec] SERVICES2
Mon Jul 6 16:58:00 -04 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Jul 6 16:58:04 -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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.55e+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
Mon Jul 6 17:01:22 -04 2026 [elapsed=206 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: 167.38 -27.58, az/alt=324.66 +86.49 idle(e) IDLE
Mon Jul 6 17:02:19 -04 2026 [elapsed=263 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Jul 6 17:02:41 -04 2026 [elapsed=285 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=10/0 spi=38.6 IDLE
Mon Jul 6 17:02:41 -04 2026 [elapsed=285 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.1C)
Checking CCD plane: Z0=-195.00 DZDX=+466.00 DZDY=-415.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=10 IDLE
Mon Jul 6 17:02:41 -04 2026 [elapsed=285 sec] WEATHER
status weather: clear 20.6C 4% 6/9kph@262 DP40.0C/-46C/d IDLE
...OK
Mon Jul 6 17:02:41 -04 2026 [elapsed=285 sec] MET
status...OK
met: c=N o=Y Ro18h Co18h Wo18h Ho18h To18h Do18h IDLE
Mon Jul 6 17:02:42 -04 2026 [elapsed=286 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Jul 6 17:02:43 -04 2026 [elapsed=287 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 196.05 -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 9 0.1%
A 0.051s 114 1.2%
A 0.081s 388 4.2%
A 0.111s 736 8.0%
A 0.142s 1227 13.4%
A 0.172s 1802 19.7%
A 0.203s 2494 27.2%
A 0.233s 3280 35.8%
A 0.263s 4201 45.9%
A 0.293s 5139 56.1%
A 0.323s 6012 65.7%
A 0.354s 6810 74.4%
A 0.384s 7451 81.4%
A 0.414s 8022 87.6%
A 0.445s 8470 92.5%
A 0.475s 8802 96.2%
A 0.505s 9034 98.7%
A 0.536s 9142 99.9%
A 0.566s 9155 100.0%
B 0.020s 1 0.0%
B 0.050s 92 1.0%
B 0.081s 376 4.1%
B 0.111s 734 8.0%
B 0.142s 1192 13.0%
B 0.172s 1779 19.4%
B 0.202s 2468 27.0%
B 0.233s 3254 35.5%
B 0.263s 4201 45.9%
B 0.293s 5143 56.2%
B 0.324s 6023 65.8%
B 0.354s 6803 74.3%
B 0.384s 7450 81.4%
B 0.415s 8025 87.7%
B 0.445s 8471 92.5%
B 0.475s 8801 96.1%
B 0.506s 9036 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9056 98.9%
A 0.081s 8772 95.8%
A 0.111s 8429 92.1%
A 0.141s 7970 87.1%
A 0.172s 7367 80.5%
A 0.202s 6691 73.1%
A 0.232s 5892 64.4%
A 0.262s 4977 54.4%
A 0.293s 4057 44.3%
A 0.323s 3164 34.6%
A 0.353s 2384 26.0%
A 0.384s 1708 18.7%
A 0.414s 1137 12.4%
A 0.444s 705 7.7%
A 0.474s 355 3.9%
A 0.505s 131 1.4%
A 0.535s 13 0.1%
A 0.565s -5 0.0%
B 0.020s 9146 99.9%
B 0.051s 9032 98.7%
B 0.081s 8763 95.7%
B 0.111s 8404 91.8%
B 0.141s 7941 86.7%
B 0.172s 7357 80.4%
B 0.202s 6663 72.8%
B 0.232s 5872 64.1%
B 0.263s 4957 54.2%
B 0.293s 4007 43.8%
B 0.324s 3143 34.3%
B 0.354s 2350 25.7%
B 0.384s 1699 18.6%
B 0.414s 1133 12.4%
B 0.445s 673 7.4%
B 0.475s 352 3.8%
B 0.505s 120 1.3%
B 0.535s 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 0.536 seconds.
Shutter A closed to 0.0 percent in 0.565 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.16e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9879 IDLE
Mon Jul 6 17:03:21 -04 2026 [elapsed=325 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=10/0 spi=38.6 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Jul 6 17:03 /atlas/obs/04a/61228/04a61228e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Jul 6 17:03:43 -04 2026 [elapsed=347 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (11 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Jul 6 17:03:43 -04 2026 [elapsed=347 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61227.87759258|info|galildriver|using focus model: foc=9830+(3.50)*20.4+(-0.35)*60.3=9880.3
61227.87759725|info|galildriver|o 3 IN | cass: 6100543 30.50 mm b=23 move=NO | arm: 406814 473.60 mm b=03 move=OK | foc: 53274883 9880 um b=0f [cmd]
bestfocus for o...OK
Mon Jul 6 17:03:45 -04 2026 [elapsed=349 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Jul 6 17:04:14 -04 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.
Mon Jul 6 17:04:15 -04 2026 [elapsed=379 sec] Happy observing!
Mon Jul 6 17:04:15 -04 2026 [elapsed=379 sec] Preflight took 379 seconds to complete.
Mon Jul 6 17:04:15 -04 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 114 1.2% A 0.081s 386 4.2% A 0.112s 737 8.1% A 0.142s 1213 13.3% A 0.173s 1804 19.7% A 0.203s 2489 27.2% A 0.234s 3294 36.0% A 0.264s 4205 45.9% A 0.295s 5132 56.1% A 0.325s 6052 66.1% A 0.356s 6821 74.5% A 0.386s 7473 81.6% A 0.417s 8056 88.0% A 0.447s 8494 92.8% A 0.478s 8820 96.4% A 0.508s 9044 98.8% A 0.538s 9141 99.9% A 0.569s 9152 100.0% B 0.020s 0 0.0% B 0.050s 113 1.2% B 0.081s 379 4.1% B 0.111s 741 8.1% B 0.142s 1219 13.3% B 0.172s 1793 19.6% B 0.202s 2489 27.2% B 0.233s 3293 36.0% B 0.263s 4198 45.9% B 0.293s 5131 56.1% B 0.323s 6016 65.7% B 0.354s 6793 74.2% B 0.384s 7460 81.5% B 0.414s 8017 87.6% B 0.445s 8469 92.5% B 0.475s 8806 96.2% B 0.506s 9034 98.7% B 0.537s 9143 99.9% B 0.567s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9149 99.9% A 0.051s 9040 98.8% A 0.081s 8763 95.7% A 0.111s 8406 91.8% A 0.142s 7938 86.7% A 0.172s 7336 80.1% A 0.203s 6641 72.5% A 0.233s 5835 63.7% A 0.264s 4917 53.7% A 0.294s 3977 43.4% A 0.324s 3109 34.0% A 0.355s 2338 25.5% A 0.385s 1653 18.1% A 0.416s 1096 12.0% A 0.446s 656 7.2% A 0.477s 330 3.6% A 0.507s 108 1.2% A 0.538s 8 0.1% B 0.020s 9143 99.9% B 0.051s 9026 98.6% B 0.081s 8779 95.9% B 0.111s 8434 92.1% B 0.142s 7968 87.0% B 0.172s 7377 80.6% B 0.202s 6690 73.1% B 0.233s 5893 64.4% B 0.263s 4979 54.4% B 0.294s 4053 44.3% B 0.324s 3160 34.5% B 0.355s 2372 25.9% B 0.385s 1684 18.4% B 0.415s 1130 12.3% B 0.446s 687 7.5% B 0.476s 347 3.8% B 0.507s 125 1.4% B 0.537s 10 0.1% B 0.568s 0 0.0% A 1 0.0mm 15 N F R | B 1 0.0mm 15 N F R