CHL Preflight Night 61191
Executing preflight for 61191 at Sat May 30 16:52:44 -04 2026.
Log can be found in /atlas/obs/04/61191/preflight.dat.
Setting donefile '/atlas/obs/04/61191/preflight_complete.20260530205244.15535' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260530205244.15535.
Sat May 30 16:52:44 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat May 30 16:52:44 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [a08a952c-40be-4aec-b4c4-3a2bcd1c93f7;1800]
Sat May 30 16:52:44 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sat May 30 16:52:45 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sat May 30 16:52:45 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sat May 30 16:52:45 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat May 30 16:52:45 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1780174362
OK
Sat May 30 16:52:45 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat May 30 16:52:45 -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 May 30 16:52:47 -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 May 30 16:52:47 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat May 30 16:52:47 -04 2026 [elapsed=3 sec] CLOCKS
admin: Sat May 30 20:52:47 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 231 512 377 0.300 0.340 0.120
*10.0.11.4 .GPS. 1 u 311 512 377 0.535 0.498 0.149
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 29.88.99.4 2 u 675 1024 377 237.588 2.209 1.595
-185.125.190.58 146.131.121.246 2 u 266 512 377 234.026 3.908 1.399
+alphyn.canonica 132.163.96.1 2 u 191 512 377 168.959 1.810 0.643
-185.125.190.56 99.220.8.133 2 u 209 1024 377 234.874 3.146 0.906
Sat May 30 16:52:48 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3616GB)
200GB available in /atlas/red...OK (7871GB)
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 35G 37% /
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 6.2T 7.6T 45% /
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 452G 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 906G 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 695G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Sat May 30 16:52:48 -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
Sat May 30 16:52:48 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Sat May 30 16:52:48 -04 2026 [elapsed=4 sec] Closing dome.
Sat May 30 16:53:39 -04 2026 [elapsed=55 sec] SERVICES2
Sat May 30 16:53:39 -04 2026 [elapsed=55 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat May 30 16:53:44 -04 2026 [elapsed=60 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=1.55e+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
Sat May 30 16:57:05 -04 2026 [elapsed=261 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: 129.86 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Sat May 30 16:58:11 -04 2026 [elapsed=327 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat May 30 16:58:35 -04 2026 [elapsed=351 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.2 IDLE
Sat May 30 16:58:35 -04 2026 [elapsed=351 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (-0 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.5C)
Checking CCD plane: Z0=-198.00 DZDX=+467.00 DZDY=-413.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat May 30 16:58:35 -04 2026 [elapsed=351 sec] WEATHER
status weather: C 24.8C 14% 6/8kph@306 DP28.2C/-44C/d IDLE
...OK
Sat May 30 16:58:36 -04 2026 [elapsed=352 sec] MET
status...OK
met: c=N o=Y Ro18d Co2d Wo18d Ho18d To18d Do19d IDLE
Sat May 30 16:58:36 -04 2026 [elapsed=352 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat May 30 16:58:36 -04 2026 [elapsed=352 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 158.54 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 7 0.1%
A 0.051s 121 1.3%
A 0.081s 401 4.4%
A 0.111s 740 8.1%
A 0.142s 1220 13.3%
A 0.172s 1794 19.6%
A 0.202s 2492 27.2%
A 0.233s 3295 36.0%
A 0.263s 4191 45.8%
A 0.293s 5135 56.1%
A 0.324s 6012 65.7%
A 0.354s 6807 74.4%
A 0.384s 7454 81.4%
A 0.414s 8025 87.7%
A 0.445s 8467 92.5%
A 0.475s 8802 96.2%
A 0.505s 9034 98.7%
A 0.536s 9140 99.8%
A 0.566s 9155 100.0%
B 0.020s 1 0.0%
B 0.051s 91 1.0%
B 0.081s 376 4.1%
B 0.111s 736 8.0%
B 0.142s 1194 13.0%
B 0.172s 1783 19.5%
B 0.202s 2470 27.0%
B 0.232s 3256 35.6%
B 0.263s 4173 45.6%
B 0.293s 5114 55.9%
B 0.323s 5995 65.5%
B 0.353s 6781 74.1%
B 0.384s 7430 81.2%
B 0.414s 8011 87.5%
B 0.445s 8458 92.4%
B 0.475s 8791 96.0%
B 0.505s 9037 98.7%
B 0.536s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9057 98.9%
A 0.081s 8770 95.8%
A 0.111s 8426 92.0%
A 0.141s 7958 86.9%
A 0.172s 7379 80.6%
A 0.202s 6689 73.1%
A 0.233s 5893 64.4%
A 0.263s 4952 54.1%
A 0.293s 4025 44.0%
A 0.324s 3139 34.3%
A 0.354s 2354 25.7%
A 0.385s 1692 18.5%
A 0.415s 1125 12.3%
A 0.445s 691 7.5%
A 0.475s 348 3.8%
A 0.506s 125 1.4%
A 0.536s 10 0.1%
A 0.566s -3 0.0%
B 0.020s 9149 99.9%
B 0.050s 9048 98.8%
B 0.081s 8783 95.9%
B 0.111s 8432 92.1%
B 0.141s 7978 87.2%
B 0.172s 7397 80.8%
B 0.202s 6711 73.3%
B 0.232s 5899 64.4%
B 0.263s 4989 54.5%
B 0.293s 4036 44.1%
B 0.323s 3169 34.6%
B 0.354s 2374 25.9%
B 0.384s 1718 18.8%
B 0.415s 1152 12.6%
B 0.445s 685 7.5%
B 0.475s 361 3.9%
B 0.506s 127 1.4%
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 0.566 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.566 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=1.17e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9895 IDLE
Sat May 30 16:59:11 -04 2026 [elapsed=387 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.2 IDLE
taking preflight exposures:
acam...OK
acam image:
158M May 30 16:59 /atlas/obs/04a/61191/04a61191e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat May 30 16:59:34 -04 2026 [elapsed=410 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (29 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat May 30 16:59:34 -04 2026 [elapsed=410 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61190.87470677|info|galildriver|using focus model: foc=9830+(3.50)*23.7+(-0.35)*60.2=9891.9
61190.87471179|info|galildriver|o 3 IN | cass: 6100149 30.50 mm b=23 move=NO | arm: 406829 473.62 mm b=03 move=OK | foc: 53271783 9895 um b=8f M [focus]
61190.87472194|info|galildriver|o 3 IN | cass: 6100153 30.50 mm b=23 move=NO | arm: 406829 473.62 mm b=03 move=OK | foc: 53272030 9894 um b=0f [cmd]
bestfocus for o...OK
Sat May 30 16:59:36 -04 2026 [elapsed=412 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat May 30 17:00:10 -04 2026 [elapsed=446 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 May 30 17:00:11 -04 2026 [elapsed=447 sec] Happy observing!
Sat May 30 17:00:11 -04 2026 [elapsed=447 sec] Preflight took 447 seconds to complete.
Sat May 30 17:00:11 -04 2026 [elapsed=447 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 114 1.2% A 0.081s 386 4.2% A 0.111s 737 8.1% A 0.141s 1196 13.1% A 0.171s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.322s 5997 65.5% A 0.352s 6776 74.0% A 0.383s 7433 81.2% A 0.413s 7988 87.3% A 0.443s 8444 92.2% A 0.473s 8785 96.0% A 0.503s 9021 98.5% A 0.534s 9135 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.051s 113 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1186 13.0% B 0.171s 1753 19.2% B 0.202s 2443 26.7% B 0.232s 3242 35.4% B 0.262s 4138 45.2% B 0.292s 5073 55.4% B 0.322s 5961 65.1% B 0.353s 6748 73.7% B 0.383s 7421 81.1% B 0.413s 7985 87.2% B 0.443s 8442 92.2% B 0.473s 8786 96.0% B 0.504s 9011 98.4% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9050 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.171s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.292s 4038 44.1% A 0.323s 3165 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.414s 1147 12.5% A 0.444s 693 7.6% A 0.474s 358 3.9% A 0.504s 125 1.4% A 0.535s 14 0.2% A 0.565s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9016 98.5% B 0.081s 8762 95.7% B 0.111s 8407 91.8% B 0.141s 7936 86.7% B 0.171s 7379 80.6% B 0.202s 6690 73.1% B 0.232s 5891 64.4% B 0.262s 4980 54.4% B 0.292s 4053 44.3% B 0.323s 3165 34.6% B 0.353s 2392 26.1% B 0.383s 1703 18.6% B 0.413s 1147 12.5% B 0.443s 700 7.6% B 0.474s 356 3.9% B 0.504s 133 1.5% B 0.534s 14 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R