CHL Preflight Night 61192
Executing preflight for 61192 at Sun May 31 16:52:29 -04 2026.
Log can be found in /atlas/obs/04/61192/preflight.dat.
Setting donefile '/atlas/obs/04/61192/preflight_complete.20260531205229.15535' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260531205229.15535.
Sun May 31 16:52:29 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun May 31 16:52:29 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [b3ca066e-fe01-4b16-b225-610d42c1dc4d;1800]
Sun May 31 16:52:29 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sun May 31 16:52:30 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sun May 31 16:52:30 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sun May 31 16:52:30 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun May 31 16:52:30 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1780260741
OK
Sun May 31 16:52:30 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun May 31 16:52:30 -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
Sun May 31 16:52:32 -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
Sun May 31 16:52:32 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sun May 31 16:52:32 -04 2026 [elapsed=3 sec] CLOCKS
admin: Sun May 31 20:52:32 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 457 1024 377 0.338 0.784 0.453
+10.0.11.4 .GPS. 1 u 815 1024 377 0.714 1.024 0.560
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 446 1024 377 233.732 4.930 1.382
-185.125.190.58 146.131.121.246 2 u 220 1024 377 235.117 4.180 1.220
+alphyn.canonica 132.163.96.1 2 u 770 1024 377 172.826 0.551 1.363
-185.125.190.56 99.220.8.133 2 u 802 1024 377 231.756 4.873 1.799
Sun May 31 16:52:33 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3593GB)
200GB available in /atlas/red...OK (7848GB)
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 7.5T 46% /
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
Sun May 31 16:52:33 -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
Sun May 31 16:52:33 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Sun May 31 16:52:33 -04 2026 [elapsed=4 sec] Closing dome.
Sun May 31 16:53:25 -04 2026 [elapsed=56 sec] SERVICES2
Sun May 31 16:53:25 -04 2026 [elapsed=56 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun May 31 16:53:29 -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=1.58e+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
Sun May 31 16:56:51 -04 2026 [elapsed=262 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: 130.79 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Sun May 31 16:57:56 -04 2026 [elapsed=327 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun May 31 16:58:21 -04 2026 [elapsed=352 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=1053/0 spi=38.0 IDLE
Sun May 31 16:58:21 -04 2026 [elapsed=352 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=-414.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=1053 IDLE
Sun May 31 16:58:21 -04 2026 [elapsed=352 sec] WEATHER
status weather: C 23.3C 14% 5/7kph@303 DP26.3C/-105C/d IDLE
...OK
Sun May 31 16:58:22 -04 2026 [elapsed=353 sec] MET
status...OK
met: c=N o=Y Ro19d Co3d Wo19d Ho19d To19d Do20d IDLE
Sun May 31 16:58:22 -04 2026 [elapsed=353 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun May 31 16:58:24 -04 2026 [elapsed=355 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 159.47 -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 5 0.1%
A 0.051s 125 1.4%
A 0.081s 401 4.4%
A 0.111s 741 8.1%
A 0.141s 1218 13.3%
A 0.172s 1792 19.6%
A 0.202s 2490 27.2%
A 0.233s 3291 36.0%
A 0.263s 4196 45.8%
A 0.293s 5138 56.1%
A 0.324s 6009 65.6%
A 0.354s 6802 74.3%
A 0.384s 7454 81.4%
A 0.414s 8028 87.7%
A 0.445s 8469 92.5%
A 0.475s 8803 96.2%
A 0.505s 9034 98.7%
A 0.536s 9141 99.9%
A 0.566s 9156 100.0%
B 0.020s 2 0.0%
B 0.051s 89 1.0%
B 0.081s 376 4.1%
B 0.111s 735 8.0%
B 0.142s 1190 13.0%
B 0.172s 1782 19.5%
B 0.202s 2493 27.2%
B 0.233s 3281 35.8%
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 7449 81.4%
B 0.415s 8027 87.7%
B 0.445s 8471 92.5%
B 0.475s 8800 96.1%
B 0.505s 9038 98.7%
B 0.536s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9056 98.9%
A 0.081s 8770 95.8%
A 0.111s 8426 92.0%
A 0.141s 7958 86.9%
A 0.172s 7376 80.6%
A 0.202s 6690 73.1%
A 0.232s 5897 64.4%
A 0.263s 4981 54.4%
A 0.293s 4055 44.3%
A 0.323s 3162 34.5%
A 0.353s 2379 26.0%
A 0.384s 1714 18.7%
A 0.414s 1141 12.5%
A 0.444s 705 7.7%
A 0.475s 348 3.8%
A 0.505s 129 1.4%
A 0.535s 13 0.1%
A 0.566s -3 0.0%
B 0.020s 9149 99.9%
B 0.050s 9044 98.8%
B 0.081s 8779 95.9%
B 0.111s 8430 92.1%
B 0.141s 7976 87.1%
B 0.172s 7376 80.6%
B 0.202s 6686 73.0%
B 0.232s 5898 64.4%
B 0.263s 4988 54.5%
B 0.293s 4034 44.1%
B 0.323s 3167 34.6%
B 0.354s 2374 25.9%
B 0.384s 1718 18.8%
B 0.414s 1149 12.6%
B 0.445s 687 7.5%
B 0.475s 360 3.9%
B 0.505s 127 1.4%
B 0.536s 9 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 0.566 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=1.15e+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
Sun May 31 16:59:01 -04 2026 [elapsed=392 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=1053/0 spi=38.0 IDLE
taking preflight exposures:
acam...OK
acam image:
157M May 31 16:59 /atlas/obs/04a/61192/04a61192e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun May 31 16:59:24 -04 2026 [elapsed=415 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (18 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun May 31 16:59:24 -04 2026 [elapsed=415 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61191.87459109|info|galildriver|using focus model: foc=9830+(3.50)*22.2+(-0.35)*60.3=9886.6
61191.87459577|info|galildriver|o 3 IN | cass: 6101118 30.51 mm b=23 move=NO | arm: 406829 473.62 mm b=03 move=OK | foc: 53273143 9888 um b=0f [cmd]
bestfocus for o...OK
Sun May 31 16:59:25 -04 2026 [elapsed=416 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun May 31 16:59:57 -04 2026 [elapsed=448 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.
Sun May 31 16:59:59 -04 2026 [elapsed=450 sec] Happy observing!
Sun May 31 16:59:59 -04 2026 [elapsed=450 sec] Preflight took 450 seconds to complete.
Sun May 31 16:59:59 -04 2026 [elapsed=450 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 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.172s 1782 19.5% A 0.202s 2465 26.9% A 0.232s 3267 35.7% A 0.262s 4174 45.6% A 0.293s 5103 55.7% A 0.323s 5997 65.5% A 0.354s 6775 74.0% A 0.384s 7433 81.2% A 0.414s 8004 87.4% A 0.444s 8458 92.4% A 0.475s 8793 96.1% A 0.505s 9026 98.6% A 0.535s 9139 99.8% A 0.566s 9154 100.0% B 0.020s 2 0.0% B 0.050s 111 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1203 13.1% B 0.171s 1774 19.4% B 0.202s 2467 26.9% B 0.232s 3268 35.7% B 0.262s 4167 45.5% B 0.292s 5103 55.7% B 0.323s 5988 65.4% B 0.353s 6772 74.0% B 0.383s 7440 81.3% B 0.413s 8001 87.4% B 0.443s 8455 92.4% B 0.474s 8795 96.1% B 0.504s 9022 98.6% B 0.534s 9138 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8422 92.0% A 0.141s 7957 86.9% A 0.172s 7380 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4983 54.4% A 0.293s 4038 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1731 18.9% A 0.413s 1163 12.7% A 0.444s 706 7.7% A 0.474s 367 4.0% A 0.504s 132 1.4% A 0.534s 15 0.2% A 0.564s 1 0.0% B 0.020s 9146 99.9% B 0.050s 9025 98.6% B 0.081s 8780 95.9% B 0.111s 8433 92.1% B 0.141s 7968 87.0% B 0.171s 7400 80.8% B 0.201s 6713 73.3% B 0.232s 5920 64.7% B 0.262s 5011 54.7% B 0.292s 4083 44.6% B 0.322s 3192 34.9% B 0.353s 2417 26.4% B 0.383s 1723 18.8% B 0.413s 1162 12.7% B 0.443s 713 7.8% B 0.474s 365 4.0% B 0.504s 138 1.5% B 0.534s 16 0.2% B 0.564s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R