CHL Preflight Night 61226
Executing preflight for 61226 at Sat Jul 4 16:57:02 -04 2026.
Log can be found in /atlas/obs/04/61226/preflight.dat.
Setting donefile '/atlas/obs/04/61226/preflight_complete.20260704205702.29650' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260704205702.29650.
Sat Jul 4 16:57:02 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Jul 4 16:57:02 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [56f8bb18-a755-4880-b60f-18fc8224cbfe;1800]
Sat Jul 4 16:57:02 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sat Jul 4 16:57:03 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sat Jul 4 16:57:03 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sat Jul 4 16:57:03 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Jul 4 16:57:03 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1783198621
OK
Sat Jul 4 16:57:03 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Jul 4 16:57:03 -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 Jul 4 16:57:05 -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 Jul 4 16:57:05 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Jul 4 16:57:05 -04 2026 [elapsed=3 sec] CLOCKS
admin: Sat Jul 4 20:57:05 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 155 256 377 0.275 0.096 0.045
+10.0.11.4 .GPS. 1 u 104 256 377 0.696 0.330 0.075
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+alphyn.canonica 132.163.96.1 2 u 97 256 377 145.576 2.549 3.892
-185.125.190.56 99.220.8.133 2 u 55 512 377 218.672 -5.381 1.657
-185.125.190.58 99.220.8.133 2 u 78 512 377 223.908 -7.306 1.857
-185.125.190.57 99.220.8.133 2 u 431 512 377 223.714 -8.309 1.835
Sat Jul 4 16:57:06 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (4502GB)
200GB available in /atlas/red...OK (8695GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.0T 4.3T 58% /
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 5.4T 8.3T 40% /
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 535G 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
Sat Jul 4 16:57:07 -04 2026 [elapsed=5 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 Jul 4 16:57:07 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Sat Jul 4 16:57:07 -04 2026 [elapsed=5 sec] SERVICES2
Sat Jul 4 16:57:10 -04 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Jul 4 16:57:15 -04 2026 [elapsed=13 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=1.54e+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 Jul 4 17:00:37 -04 2026 [elapsed=215 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: 165.22 -27.58, az/alt=324.63 +86.48 idle(e) IDLE
Sat Jul 4 17:01:35 -04 2026 [elapsed=273 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Jul 4 17:01:57 -04 2026 [elapsed=295 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Sat Jul 4 17:01:57 -04 2026 [elapsed=295 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (4 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.3C)
Checking CCD plane: Z0=-188.00 DZDX=+467.00 DZDY=-416.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Jul 4 17:01:57 -04 2026 [elapsed=295 sec] WEATHER
status weather: clear 9.6C 28% 10/11kph@317 DP17.9C/56C/d IDLE
...OK
Sat Jul 4 17:01:58 -04 2026 [elapsed=296 sec] MET
status...OK
met: c=N o=Y Ro1d Co12h Wo1d Ho1d To1d Do1d IDLE
Sat Jul 4 17:01:58 -04 2026 [elapsed=296 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Jul 4 17:01:58 -04 2026 [elapsed=296 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 193.89 -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 -1 -0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 5 0.1%
A 0.051s 112 1.2%
A 0.081s 383 4.2%
A 0.111s 728 8.0%
A 0.141s 1205 13.2%
A 0.172s 1773 19.4%
A 0.202s 2442 26.7%
A 0.232s 3231 35.3%
A 0.262s 4131 45.1%
A 0.293s 5085 55.5%
A 0.323s 5956 65.1%
A 0.353s 6756 73.8%
A 0.383s 7412 81.0%
A 0.413s 7993 87.3%
A 0.444s 8447 92.3%
A 0.474s 8787 96.0%
A 0.504s 9026 98.6%
A 0.534s 9141 99.9%
A 0.565s 9161 100.0%
B 0.020s 0 0.0%
B 0.050s 84 0.9%
B 0.081s 361 3.9%
B 0.111s 722 7.9%
B 0.141s 1177 12.9%
B 0.171s 1759 19.2%
B 0.202s 2446 26.7%
B 0.232s 3230 35.3%
B 0.262s 4139 45.2%
B 0.293s 5083 55.5%
B 0.323s 5971 65.2%
B 0.353s 6756 73.8%
B 0.384s 7412 81.0%
B 0.414s 7995 87.3%
B 0.444s 8459 92.4%
B 0.474s 8794 96.1%
B 0.505s 9028 98.6%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9057 98.9%
A 0.081s 8773 95.8%
A 0.111s 8429 92.1%
A 0.141s 7948 86.8%
A 0.172s 7354 80.3%
A 0.202s 6669 72.9%
A 0.232s 5870 64.1%
A 0.263s 4950 54.1%
A 0.293s 4023 43.9%
A 0.323s 3138 34.3%
A 0.353s 2358 25.8%
A 0.384s 1693 18.5%
A 0.414s 1122 12.3%
A 0.444s 689 7.5%
A 0.475s 344 3.8%
A 0.505s 123 1.3%
A 0.535s 7 0.1%
B 0.020s 9149 99.9%
B 0.051s 9041 98.8%
B 0.081s 8762 95.7%
B 0.111s 8408 91.9%
B 0.142s 7944 86.8%
B 0.172s 7359 80.4%
B 0.202s 6663 72.8%
B 0.232s 5871 64.1%
B 0.263s 4959 54.2%
B 0.293s 4010 43.8%
B 0.323s 3140 34.3%
B 0.354s 2349 25.7%
B 0.384s 1698 18.5%
B 0.414s 1132 12.4%
B 0.445s 674 7.4%
B 0.475s 350 3.8%
B 0.505s 119 1.3%
B 0.536s 4 0.0%
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 99.9 percent in 0.535 seconds.
Shutter A closed to 0.1 percent in 0.535 seconds.
Shutter B closed to 0.0 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.2e+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
Sat Jul 4 17:02:33 -04 2026 [elapsed=331 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 Jul 4 17:02 /atlas/obs/04a/61226/04a61226e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Jul 4 17:02:56 -04 2026 [elapsed=354 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (54 seconds old)
OTA humidity level...OK (8%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Jul 4 17:02:56 -04 2026 [elapsed=354 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61225.87704239|info|galildriver|using focus model: foc=9830+(3.50)*11.8+(-0.35)*60.2=9850.2
61225.87704706|info|galildriver|o 3 IN | cass: 6104204 30.52 mm b=23 move=NO | arm: 406814 473.60 mm b=03 move=OK | foc: 53280716 9851 um b=0f [cmd]
bestfocus for o...OK
Sat Jul 4 17:02:57 -04 2026 [elapsed=355 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Jul 4 17:03:25 -04 2026 [elapsed=383 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.
Sat Jul 4 17:03:26 -04 2026 [elapsed=384 sec] Happy observing!
Sat Jul 4 17:03:26 -04 2026 [elapsed=384 sec] Preflight took 384 seconds to complete.
Sat Jul 4 17:03:26 -04 2026 [elapsed=384 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 375 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.171s 1762 19.2% A 0.201s 2443 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5074 55.4% A 0.322s 5970 65.2% A 0.353s 6752 73.8% A 0.383s 7414 81.0% A 0.413s 7990 87.3% A 0.443s 8443 92.2% A 0.473s 8783 95.9% A 0.504s 9016 98.5% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 1 0.0% B 0.050s 110 1.2% B 0.081s 371 4.1% B 0.111s 717 7.8% B 0.141s 1186 13.0% B 0.171s 1755 19.2% B 0.202s 2443 26.7% B 0.232s 3241 35.4% B 0.262s 4138 45.2% B 0.292s 5075 55.4% B 0.323s 5963 65.1% B 0.353s 6747 73.7% B 0.383s 7420 81.1% B 0.413s 7986 87.2% B 0.444s 8443 92.2% B 0.474s 8787 96.0% B 0.504s 9018 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9042 98.8% A 0.081s 8768 95.8% A 0.111s 8407 91.8% A 0.141s 7941 86.7% A 0.171s 7359 80.4% A 0.202s 6692 73.1% A 0.232s 5894 64.4% A 0.262s 4981 54.4% A 0.292s 4039 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.444s 694 7.6% A 0.474s 359 3.9% A 0.504s 124 1.4% A 0.534s 14 0.2% A 0.565s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9019 98.5% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7952 86.9% B 0.171s 7378 80.6% B 0.202s 6690 73.1% B 0.232s 5893 64.4% B 0.262s 4981 54.4% B 0.292s 4053 44.3% B 0.322s 3161 34.5% B 0.353s 2395 26.2% B 0.383s 1705 18.6% B 0.413s 1146 12.5% B 0.444s 700 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R