CHL Preflight Night 61188
Executing preflight for 61188 at Wed May 27 16:53:42 -04 2026.
Log can be found in /atlas/obs/04/61188/preflight.dat.
Setting donefile '/atlas/obs/04/61188/preflight_complete.20260527205342.2514' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260527205342.2514.
Wed May 27 16:53:42 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed May 27 16:53:42 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [ceb1ef12-a828-4e39-8cc9-a5a6304c9cbe;1800]
Wed May 27 16:53:42 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Wed May 27 16:53:43 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Wed May 27 16:53:43 -04 2026 [elapsed=1 sec] auxcam is disabled.
Wed May 27 16:53:43 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed May 27 16:53:43 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1779915213
OK
Wed May 27 16:53:43 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed May 27 16:53:43 -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
Wed May 27 16:53:45 -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
Wed May 27 16:53:45 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed May 27 16:53:45 -04 2026 [elapsed=3 sec] CLOCKS
admin: Wed May 27 20:53:45 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 636 1024 377 0.305 0.098 1.351
+10.0.11.4 .GPS. 1 u 461 1024 377 0.590 0.506 1.135
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 747 1024 377 208.656 -4.587 1.521
-185.125.190.58 146.131.121.246 2 u 788 1024 377 210.771 -5.661 2.835
+alphyn.canonica 132.163.96.1 2 u 257 1024 377 155.588 -1.611 1.809
-185.125.190.56 99.220.8.133 2 u 407 1024 377 211.555 -5.657 2.006
Wed May 27 16:53:46 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3556GB)
200GB available in /atlas/red...OK (7565GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.9T 3.4T 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 6.5T 7.3T 48% /
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 573G 13T 5% /
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 696G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Wed May 27 16:53:46 -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
Wed May 27 16:53:46 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Wed May 27 16:53:46 -04 2026 [elapsed=4 sec] SERVICES2
Wed May 27 16:53:46 -04 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed May 27 16:53:51 -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=1.59e+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
Wed May 27 16:57:11 -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: 126.93 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Wed May 27 16:58:16 -04 2026 [elapsed=274 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed May 27 16:58:41 -04 2026 [elapsed=299 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.7 IDLE
Wed May 27 16:58:41 -04 2026 [elapsed=299 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 (-53.8C)
Checking CCD plane: Z0=-196.00 DZDX=+470.00 DZDY=-413.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed May 27 16:58:41 -04 2026 [elapsed=299 sec] WEATHER
status weather: C 22.9C 14% 5/7kph@237 DP27.0C/-60C/d IDLE
...OK
Wed May 27 16:58:41 -04 2026 [elapsed=299 sec] MET
status...OK
met: c=N o=Y Ro15d Co2d Wo15d Ho15d To15d Do16d IDLE
Wed May 27 16:58:41 -04 2026 [elapsed=299 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed May 27 16:58:41 -04 2026 [elapsed=299 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 155.61 -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 4 0.0%
A 0.051s 109 1.2%
A 0.081s 390 4.3%
A 0.111s 730 8.0%
A 0.141s 1203 13.1%
A 0.172s 1773 19.4%
A 0.202s 2464 26.9%
A 0.233s 3263 35.6%
A 0.263s 4162 45.5%
A 0.293s 5111 55.8%
A 0.324s 5984 65.4%
A 0.354s 6778 74.0%
A 0.384s 7433 81.2%
A 0.414s 8010 87.5%
A 0.445s 8458 92.4%
A 0.475s 8795 96.1%
A 0.505s 9030 98.6%
A 0.536s 9140 99.8%
A 0.566s 9156 100.0%
B 0.020s 2 0.0%
B 0.050s 95 1.0%
B 0.081s 388 4.2%
B 0.111s 748 8.2%
B 0.141s 1208 13.2%
B 0.172s 1802 19.7%
B 0.202s 2492 27.2%
B 0.232s 3281 35.8%
B 0.263s 4200 45.9%
B 0.293s 5143 56.2%
B 0.323s 6024 65.8%
B 0.353s 6801 74.3%
B 0.384s 7450 81.4%
B 0.414s 8025 87.7%
B 0.444s 8471 92.5%
B 0.475s 8802 96.2%
B 0.505s 9036 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9055 98.9%
A 0.081s 8770 95.8%
A 0.111s 8427 92.1%
A 0.142s 7939 86.7%
A 0.172s 7358 80.4%
A 0.203s 6666 72.8%
A 0.233s 5869 64.1%
A 0.263s 4953 54.1%
A 0.294s 4024 44.0%
A 0.324s 3108 34.0%
A 0.355s 2336 25.5%
A 0.385s 1673 18.3%
A 0.415s 1109 12.1%
A 0.446s 678 7.4%
A 0.476s 337 3.7%
A 0.506s 117 1.3%
A 0.537s 8 0.1%
B 0.020s 9149 99.9%
B 0.051s 9044 98.8%
B 0.081s 8770 95.8%
B 0.111s 8419 92.0%
B 0.142s 7959 86.9%
B 0.172s 7378 80.6%
B 0.202s 6687 73.1%
B 0.233s 5898 64.4%
B 0.263s 4989 54.5%
B 0.293s 4036 44.1%
B 0.324s 3168 34.6%
B 0.354s 2373 25.9%
B 0.384s 1718 18.8%
B 0.415s 1150 12.6%
B 0.445s 674 7.4%
B 0.476s 360 3.9%
B 0.506s 121 1.3%
B 0.536s 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 0.535 seconds.
Shutter A closed to 0.1 percent in 0.537 seconds.
Shutter B closed to 0.1 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.24e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9888 IDLE
Wed May 27 16:59:17 -04 2026 [elapsed=335 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.7 IDLE
taking preflight exposures:
acam...OK
acam image:
157M May 27 16:59 /atlas/obs/04a/61188/04a61188e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed May 27 16:59:39 -04 2026 [elapsed=357 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (33 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed May 27 16:59:39 -04 2026 [elapsed=357 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61187.87476658|info|galildriver|using focus model: foc=9830+(3.50)*21.6+(-0.35)*60.2=9884.5
61187.87477159|info|galildriver|o 3 IN | cass: 6101799 30.51 mm b=23 move=NO | arm: 406829 473.62 mm b=03 move=OK | foc: 53273079 9889 um b=8f M [focus]
61187.87478175|info|galildriver|o 3 IN | cass: 6101801 30.51 mm b=23 move=NO | arm: 406829 473.62 mm b=03 move=OK | foc: 53273437 9887 um b=0f [cmd]
bestfocus for o...OK
Wed May 27 16:59:41 -04 2026 [elapsed=359 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed May 27 17:00:15 -04 2026 [elapsed=393 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.
Wed May 27 17:00:17 -04 2026 [elapsed=395 sec] Happy observing!
Wed May 27 17:00:17 -04 2026 [elapsed=395 sec] Preflight took 395 seconds to complete.
Wed May 27 17:00:17 -04 2026 [elapsed=395 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 121 1.3% A 0.081s 396 4.3% A 0.111s 749 8.2% A 0.141s 1214 13.3% A 0.171s 1803 19.7% A 0.201s 2491 27.2% A 0.232s 3294 36.0% A 0.262s 4204 45.9% A 0.292s 5134 56.1% A 0.322s 6025 65.8% A 0.352s 6776 74.0% A 0.383s 7433 81.2% A 0.413s 8006 87.5% A 0.443s 8458 92.4% A 0.474s 8801 96.1% A 0.504s 9028 98.6% A 0.534s 9138 99.8% A 0.564s 9153 100.0% B 0.020s 1 0.0% B 0.050s 119 1.3% B 0.081s 388 4.2% B 0.111s 741 8.1% B 0.141s 1218 13.3% B 0.171s 1793 19.6% B 0.202s 2464 26.9% B 0.232s 3295 36.0% B 0.262s 4168 45.5% B 0.292s 5103 55.7% B 0.323s 6015 65.7% B 0.353s 6770 74.0% B 0.383s 7441 81.3% B 0.413s 8018 87.6% B 0.444s 8457 92.4% B 0.474s 8796 96.1% B 0.504s 9022 98.6% B 0.534s 9139 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9049 98.9% A 0.081s 8778 95.9% A 0.111s 8421 92.0% A 0.141s 7959 86.9% A 0.172s 7382 80.6% A 0.202s 6692 73.1% A 0.232s 5896 64.4% A 0.262s 4983 54.4% A 0.293s 4039 44.1% A 0.323s 3168 34.6% A 0.353s 2384 26.0% A 0.383s 1709 18.7% A 0.414s 1147 12.5% A 0.444s 692 7.6% A 0.474s 359 3.9% A 0.504s 125 1.4% A 0.534s 12 0.1% A 0.565s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9018 98.5% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7950 86.8% B 0.171s 7377 80.6% B 0.202s 6688 73.1% B 0.232s 5891 64.4% B 0.262s 4981 54.4% B 0.292s 4052 44.3% B 0.322s 3162 34.5% B 0.353s 2392 26.1% B 0.383s 1704 18.6% B 0.413s 1147 12.5% B 0.443s 700 7.6% B 0.473s 365 4.0% B 0.504s 138 1.5% B 0.534s 16 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R