CHL Preflight Night 61162
Executing preflight for 61162 at Fri May 1 17:09:25 -04 2026.
Log can be found in /atlas/obs/04/61162/preflight.dat.
Setting donefile '/atlas/obs/04/61162/preflight_complete.20260501210925.14810' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260501210925.14810.
Fri May 1 17:09:26 -04 2026 [elapsed=1 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri May 1 17:09:26 -04 2026 [elapsed=1 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [affa9571-9029-43b2-a939-84d150a6dadf;1800]
Fri May 1 17:09:26 -04 2026 [elapsed=1 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Fri May 1 17:09:26 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Fri May 1 17:09:26 -04 2026 [elapsed=1 sec] auxcam is disabled.
Fri May 1 17:09:26 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri May 1 17:09:26 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777669763
OK
Fri May 1 17:09:26 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri May 1 17:09:26 -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
Fri May 1 17:09:28 -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
Fri May 1 17:09:28 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri May 1 17:09:28 -04 2026 [elapsed=3 sec] CLOCKS
admin: Fri May 1 21:09:28 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 27 256 377 0.293 1.964 0.313
+10.0.11.4 .GPS. 1 u 249 256 377 0.488 1.750 0.600
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 68 256 377 215.439 -1.760 1.299
-185.125.190.58 146.131.121.246 2 u 15 256 377 215.829 -1.533 0.775
-alphyn.canonica 132.163.96.1 2 u 70 256 337 145.827 -1.832 3.497
+185.125.190.56 146.131.121.246 2 u 67 256 377 214.994 -1.505 1.259
Fri May 1 17:09:29 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3622GB)
200GB available in /atlas/red...OK (7403GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.8T 3.5T 67% /
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 36G 36% /
archon:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/loop0 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 6.6T 7.1T 49% /
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 447G 13T 4% /
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 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 693G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Fri May 1 17:09:30 -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
Fri May 1 17:09:30 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Fri May 1 17:09:30 -04 2026 [elapsed=5 sec] SERVICES2
Fri May 1 17:09:30 -04 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri May 1 17:09:34 -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= 914kB time=00:00:29.24 bitrate= 256.0kbits/s speed=1.57e+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
Fri May 1 17:12:54 -04 2026 [elapsed=209 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: 105.25 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Fri May 1 17:14:00 -04 2026 [elapsed=275 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri May 1 17:14:25 -04 2026 [elapsed=300 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.5 IDLE
Fri May 1 17:14:25 -04 2026 [elapsed=300 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 (-53.8C)
Checking CCD plane: Z0=-197.00 DZDX=+467.00 DZDY=-411.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri May 1 17:14:25 -04 2026 [elapsed=300 sec] WEATHER
status weather: C 25.7C 20% 7/10kph@299 DP23.5C/-68C/d IDLE
...OK
Fri May 1 17:14:26 -04 2026 [elapsed=301 sec] MET
status...OK
met: c=N o=Y Ro4d Co3d Wo26d Ho26d To26d Do26d IDLE
Fri May 1 17:14:26 -04 2026 [elapsed=301 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri May 1 17:14:26 -04 2026 [elapsed=301 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 133.93 -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 2 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 8 0.1%
A 0.050s 108 1.2%
A 0.081s 385 4.2%
A 0.111s 725 7.9%
A 0.141s 1209 13.2%
A 0.172s 1779 19.4%
A 0.202s 2464 26.9%
A 0.232s 3254 35.5%
A 0.263s 4198 45.9%
A 0.293s 5146 56.2%
A 0.323s 6010 65.7%
A 0.353s 6804 74.3%
A 0.384s 7429 81.2%
A 0.414s 8026 87.7%
A 0.444s 8457 92.4%
A 0.474s 8804 96.2%
A 0.505s 9036 98.7%
A 0.535s 9139 99.8%
A 0.565s 9155 100.0%
B 0.020s 3 0.0%
B 0.050s 95 1.0%
B 0.081s 386 4.2%
B 0.111s 749 8.2%
B 0.141s 1207 13.2%
B 0.171s 1803 19.7%
B 0.202s 2494 27.2%
B 0.232s 3280 35.8%
B 0.263s 4200 45.9%
B 0.293s 5143 56.2%
B 0.323s 6024 65.8%
B 0.354s 6803 74.3%
B 0.384s 7450 81.4%
B 0.414s 8026 87.7%
B 0.445s 8471 92.5%
B 0.475s 8801 96.1%
B 0.505s 9036 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9048 98.8%
A 0.081s 8759 95.7%
A 0.111s 8419 92.0%
A 0.141s 7951 86.9%
A 0.172s 7345 80.2%
A 0.202s 6667 72.8%
A 0.232s 5867 64.1%
A 0.263s 4949 54.1%
A 0.293s 4022 43.9%
A 0.324s 3136 34.3%
A 0.354s 2343 25.6%
A 0.384s 1689 18.5%
A 0.414s 1110 12.1%
A 0.445s 679 7.4%
A 0.475s 336 3.7%
A 0.506s 122 1.3%
A 0.536s 7 0.1%
B 0.020s 9150 100.0%
B 0.051s 9038 98.7%
B 0.081s 8772 95.8%
B 0.111s 8417 91.9%
B 0.142s 7959 86.9%
B 0.172s 7377 80.6%
B 0.202s 6686 73.0%
B 0.233s 5898 64.4%
B 0.263s 4990 54.5%
B 0.293s 4035 44.1%
B 0.324s 3168 34.6%
B 0.354s 2373 25.9%
B 0.384s 1718 18.8%
B 0.415s 1136 12.4%
B 0.445s 673 7.4%
B 0.475s 352 3.8%
B 0.506s 121 1.3%
B 0.536s 5 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 0.565 seconds.
Shutter B opened to 99.9 percent in 0.535 seconds.
Shutter A closed to 0.1 percent in 0.536 seconds.
Shutter B closed to 0.1 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 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=9890 IDLE
Fri May 1 17:15:01 -04 2026 [elapsed=336 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.5 IDLE
taking preflight exposures:
acam...OK
acam image:
159M May 1 17:15 /atlas/obs/04a/61162/04a61162e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri May 1 17:15:23 -04 2026 [elapsed=358 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (77 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri May 1 17:15:23 -04 2026 [elapsed=358 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61161.88569496|info|galildriver|using focus model: foc=9830+(3.50)*23.4+(-0.35)*60.2=9890.8
61161.88569962|info|galildriver|o 3 IN | cass: 6104953 30.52 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53272768 9890 um b=0f [cmd]
bestfocus for o...OK
Fri May 1 17:15:25 -04 2026 [elapsed=360 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri May 1 17:15:57 -04 2026 [elapsed=392 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.
Fri May 1 17:15:59 -04 2026 [elapsed=394 sec] Happy observing!
Fri May 1 17:15:59 -04 2026 [elapsed=394 sec] Preflight took 393 seconds to complete.
Fri May 1 17:15:59 -04 2026 [elapsed=394 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 0.050s 108 1.2% A 0.081s 374 4.1% A 0.111s 723 7.9% A 0.141s 1181 12.9% A 0.172s 1760 19.2% A 0.202s 2442 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.293s 5073 55.4% A 0.323s 5970 65.2% A 0.353s 6753 73.8% A 0.384s 7414 81.0% A 0.414s 7988 87.3% A 0.444s 8445 92.3% A 0.474s 8782 95.9% A 0.505s 9022 98.6% A 0.535s 9136 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 370 4.0% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1753 19.2% B 0.201s 2443 26.7% B 0.232s 3241 35.4% B 0.262s 4137 45.2% B 0.292s 5074 55.4% B 0.322s 5960 65.1% B 0.352s 6748 73.7% B 0.383s 7421 81.1% B 0.413s 7985 87.2% B 0.443s 8442 92.2% B 0.473s 8777 95.9% B 0.503s 9011 98.4% B 0.534s 9134 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9044 98.8% A 0.081s 8767 95.8% A 0.111s 8407 91.8% A 0.141s 7941 86.7% A 0.171s 7360 80.4% A 0.202s 6691 73.1% A 0.232s 5894 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.322s 3165 34.6% A 0.353s 2387 26.1% A 0.383s 1710 18.7% A 0.413s 1147 12.5% A 0.443s 694 7.6% A 0.474s 359 3.9% A 0.504s 124 1.4% A 0.534s 13 0.1% A 0.564s 1 0.0% B 0.020s 9143 99.9% B 0.050s 9019 98.5% B 0.081s 8772 95.8% B 0.111s 8422 92.0% B 0.141s 7954 86.9% B 0.171s 7379 80.6% B 0.202s 6689 73.1% B 0.232s 5892 64.4% B 0.262s 4983 54.4% B 0.292s 4056 44.3% B 0.323s 3166 34.6% B 0.353s 2390 26.1% B 0.383s 1701 18.6% B 0.413s 1149 12.6% B 0.444s 699 7.6% B 0.474s 356 3.9% B 0.504s 133 1.5% B 0.534s 14 0.2% B 0.564s 1 0.0% A 1 0.0mm 15 N F R | B 1 0.0mm 15 N F R