CHL Preflight Night 61187
Executing preflight for 61187 at Tue May 26 18:47:46 -04 2026.
Log can be found in /atlas/obs/04/61187/preflight.dat.
Setting donefile '/atlas/obs/04/61187/preflight_complete.20260526224746.14508' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260526224746.14508.
Tue May 26 18:47:46 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue May 26 18:47:46 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [8b63088a-96f0-48d2-a8c5-e9e88bf4415b;1800]
Tue May 26 18:47:46 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue May 26 18:47:46 -04 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue May 26 18:47:46 -04 2026 [elapsed=0 sec] auxcam is disabled.
Tue May 26 18:47:46 -04 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Tue May 26 18:47:46 -04 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1779835661
OK
Tue May 26 18:47:46 -04 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Tue May 26 18:47:46 -04 2026 [elapsed=0 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
Tue May 26 18:47:48 -04 2026 [elapsed=2 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
Tue May 26 18:47:48 -04 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Tue May 26 18:47:48 -04 2026 [elapsed=2 sec] CLOCKS
admin: Tue May 26 22:47:48 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 105 1024 377 0.247 -1.165 0.637
+10.0.11.4 .GPS. 1 u 336 512 377 0.636 -0.580 0.382
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 149 1024 377 214.522 -8.231 2.300
-185.125.190.58 146.131.121.246 2 u 348 1024 377 213.608 -7.857 0.703
+alphyn.canonica 132.163.96.1 2 u 316 512 377 155.534 -2.813 1.358
-185.125.190.56 99.220.8.133 2 u 1029 1024 377 213.738 -7.846 1.754
Tue May 26 18:47:49 -04 2026 [elapsed=3 sec] DISKS
200GB available in /atlas/obs...OK (3558GB)
200GB available in /atlas/red...OK (7752GB)
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 6.3T 7.4T 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
Tue May 26 18:47:49 -04 2026 [elapsed=3 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
Tue May 26 18:47:49 -04 2026 [elapsed=3 sec] Disabling mount tracking.
Tue May 26 18:47:49 -04 2026 [elapsed=3 sec] SERVICES2
Tue May 26 18:47:49 -04 2026 [elapsed=3 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue May 26 18:47:54 -04 2026 [elapsed=8 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=1.55e+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
Tue May 26 18:51:07 -04 2026 [elapsed=201 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: 154.51 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Tue May 26 18:52:13 -04 2026 [elapsed=267 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue May 26 18:52:38 -04 2026 [elapsed=292 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=1/0 spi=231.4 IDLE
Tue May 26 18:52:38 -04 2026 [elapsed=292 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 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=+470.00 DZDY=-413.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=1 IDLE
Tue May 26 18:52:38 -04 2026 [elapsed=292 sec] WEATHER
status weather: clear 19.2C 12% 2/4kph@325 DP29.8C/-1C/d IDLE
...OK
Tue May 26 18:52:39 -04 2026 [elapsed=293 sec] MET
status...OK
met: c=N o=Y Ro15d Co1d Wo15d Ho15d To15d Do15d IDLE
Tue May 26 18:52:39 -04 2026 [elapsed=293 sec] SENTRY
status...OK
sentry: close=NO open=YES drop=YES IDLE
Tue May 26 18:52:39 -04 2026 [elapsed=293 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 183.19 -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 6 0.1%
A 0.051s 119 1.3%
A 0.081s 398 4.3%
A 0.112s 741 8.1%
A 0.142s 1218 13.3%
A 0.172s 1792 19.6%
A 0.203s 2489 27.2%
A 0.233s 3292 36.0%
A 0.263s 4194 45.8%
A 0.294s 5138 56.1%
A 0.324s 6009 65.6%
A 0.355s 6825 74.6%
A 0.385s 7473 81.6%
A 0.415s 8046 87.9%
A 0.446s 8482 92.7%
A 0.476s 8813 96.3%
A 0.506s 9041 98.8%
A 0.537s 9143 99.9%
A 0.567s 9155 100.0%
B 0.020s 2 0.0%
B 0.051s 99 1.1%
B 0.081s 386 4.2%
B 0.111s 748 8.2%
B 0.142s 1209 13.2%
B 0.172s 1801 19.7%
B 0.202s 2494 27.2%
B 0.233s 3283 35.9%
B 0.263s 4201 45.9%
B 0.294s 5173 56.5%
B 0.324s 6052 66.1%
B 0.354s 6826 74.6%
B 0.385s 7470 81.6%
B 0.415s 8043 87.9%
B 0.445s 8483 92.7%
B 0.476s 8811 96.3%
B 0.506s 9043 98.8%
B 0.536s 9149 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9153 100.0%
A 0.051s 9061 99.0%
A 0.081s 8771 95.8%
A 0.111s 8430 92.1%
A 0.142s 7958 86.9%
A 0.172s 7379 80.6%
A 0.202s 6691 73.1%
A 0.233s 5898 64.4%
A 0.263s 4982 54.4%
A 0.293s 4055 44.3%
A 0.323s 3164 34.6%
A 0.354s 2377 26.0%
A 0.384s 1714 18.7%
A 0.415s 1124 12.3%
A 0.445s 690 7.5%
A 0.475s 348 3.8%
A 0.506s 124 1.4%
A 0.536s 10 0.1%
A 0.566s -3 0.0%
B 0.020s 9148 99.9%
B 0.050s 9038 98.7%
B 0.081s 8772 95.8%
B 0.111s 8430 92.1%
B 0.141s 7961 87.0%
B 0.172s 7398 80.8%
B 0.202s 6687 73.1%
B 0.232s 5898 64.4%
B 0.263s 4989 54.5%
B 0.293s 4035 44.1%
B 0.323s 3168 34.6%
B 0.354s 2375 25.9%
B 0.384s 1717 18.8%
B 0.414s 1152 12.6%
B 0.445s 685 7.5%
B 0.475s 361 3.9%
B 0.505s 126 1.4%
B 0.536s 6 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 0.567 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=9881 IDLE
Tue May 26 18:53:13 -04 2026 [elapsed=327 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=1/0 spi=231.4 IDLE
taking preflight exposures:
acam...OK
acam image:
157M May 26 18:53 /atlas/obs/04a/61187/04a61187e0002o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue May 26 18:53:35 -04 2026 [elapsed=349 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (29 seconds old)
OTA humidity level...OK (4%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue May 26 18:53:35 -04 2026 [elapsed=349 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61186.95389128|info|galildriver|using focus model: foc=9830+(3.50)*20.8+(-0.35)*60.2=9881.7
61186.95389595|info|galildriver|o 3 IN | cass: 6102764 30.51 mm b=23 move=NO | arm: 406829 473.62 mm b=03 move=OK | foc: 53274576 9881 um b=0f [cmd]
bestfocus for o...OK
Tue May 26 18:53:37 -04 2026 [elapsed=351 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue May 26 18:54:10 -04 2026 [elapsed=384 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.
Tue May 26 18:54:11 -04 2026 [elapsed=385 sec] Happy observing!
Tue May 26 18:54:11 -04 2026 [elapsed=385 sec] Preflight took 385 seconds to complete.
Tue May 26 18:54:11 -04 2026 [elapsed=385 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