CHL Preflight Night 61149
Executing preflight for 61149 at Sat Apr 18 17:22:01 -04 2026.
Log can be found in /atlas/obs/04/61149/preflight.dat.
Setting donefile '/atlas/obs/04/61149/preflight_complete.20260418212201.28119' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260418212201.28119.
Sat Apr 18 17:22:01 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Apr 18 17:22:01 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [1241e1f9-8d8f-4d08-a884-532efcf2abb7;1800]
Sat Apr 18 17:22:01 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sat Apr 18 17:22:02 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sat Apr 18 17:22:02 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sat Apr 18 17:22:02 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Apr 18 17:22:02 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1776547313
OK
Sat Apr 18 17:22:02 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Apr 18 17:22:02 -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 Apr 18 17:22:04 -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 Apr 18 17:22:04 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Apr 18 17:22:04 -04 2026 [elapsed=3 sec] CLOCKS
admin: Sat Apr 18 21:22:04 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 80 256 377 0.279 0.128 0.146
*10.0.11.4 .GPS. 1 u 62 512 377 0.611 0.431 0.168
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 464 512 377 220.835 -6.792 1.140
-185.125.190.58 99.220.8.133 2 u 114 512 377 222.628 -7.746 1.284
+alphyn.canonica 132.163.96.1 2 u 232 256 377 148.889 -4.724 1.825
-185.125.190.56 146.131.121.246 2 u 123 512 377 223.726 -7.424 1.172
Sat Apr 18 17:22:06 -04 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (3957GB)
200GB available in /atlas/red...OK (7619GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.5T 3.8T 64% /
admin:/dev/loop2 105M 105M 0 100% /snap/core/17272
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 20G 36G 36% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/loop1 105M 105M 0 100% /snap/core/17272
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 6.4T 7.3T 47% /
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/md0p1 15T 638G 13T 5% /
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 902G 13T 7% /
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 692G 13T 6% /
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
Sat Apr 18 17:22:06 -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
Sat Apr 18 17:22:06 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Sat Apr 18 17:22:07 -04 2026 [elapsed=6 sec] SERVICES2
Sat Apr 18 17:22:07 -04 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Apr 18 17:22:11 -04 2026 [elapsed=10 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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.53e+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 Apr 18 17:25:29 -04 2026 [elapsed=208 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: 95.59 -27.58, az/alt=324.56 +86.48 idle(e) IDLE
Sat Apr 18 17:26:34 -04 2026 [elapsed=273 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Apr 18 17:26:59 -04 2026 [elapsed=298 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Sat Apr 18 17:26:59 -04 2026 [elapsed=298 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.9C)
Checking CCD plane: Z0=-197.00 DZDX=+461.00 DZDY=-415.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Apr 18 17:26:59 -04 2026 [elapsed=298 sec] WEATHER
status weather: C 23.3C 28% 14/18kph@282 DP17.8C/-36C/d IDLE
...OK
Sat Apr 18 17:26:59 -04 2026 [elapsed=298 sec] MET
status...OK
met: c=N o=Y Ro4d Co21h Wo13d Ho13d To13d Do13d IDLE
Sat Apr 18 17:26:59 -04 2026 [elapsed=298 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Apr 18 17:27:00 -04 2026 [elapsed=299 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 124.26 -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 8 0.1%
A 0.051s 100 1.1%
A 0.081s 380 4.2%
A 0.112s 727 7.9%
A 0.142s 1208 13.2%
A 0.172s 1781 19.5%
A 0.203s 2463 26.9%
A 0.233s 3250 35.5%
A 0.263s 4171 45.6%
A 0.294s 5119 55.9%
A 0.324s 6007 65.6%
A 0.354s 6804 74.3%
A 0.385s 7431 81.2%
A 0.415s 8008 87.5%
A 0.445s 8462 92.4%
A 0.475s 8794 96.1%
A 0.506s 9029 98.6%
A 0.536s 9137 99.8%
A 0.566s 9156 100.0%
B 0.020s 3 0.0%
B 0.050s 93 1.0%
B 0.081s 378 4.1%
B 0.111s 737 8.1%
B 0.141s 1193 13.0%
B 0.172s 1782 19.5%
B 0.202s 2494 27.2%
B 0.232s 3283 35.9%
B 0.262s 4203 45.9%
B 0.293s 5115 55.9%
B 0.323s 5997 65.5%
B 0.353s 6782 74.1%
B 0.383s 7430 81.2%
B 0.414s 8010 87.5%
B 0.444s 8459 92.4%
B 0.474s 8789 96.0%
B 0.505s 9031 98.7%
B 0.535s 9144 99.9%
B 0.565s 9158 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9048 98.8%
A 0.081s 8759 95.7%
A 0.111s 8417 91.9%
A 0.141s 7966 87.0%
A 0.171s 7363 80.4%
A 0.202s 6690 73.1%
A 0.232s 5892 64.4%
A 0.262s 4978 54.4%
A 0.292s 4054 44.3%
A 0.323s 3162 34.5%
A 0.353s 2387 26.1%
A 0.383s 1688 18.4%
A 0.414s 1123 12.3%
A 0.444s 691 7.5%
A 0.475s 346 3.8%
A 0.505s 126 1.4%
A 0.535s 9 0.1%
B 0.020s 9149 99.9%
B 0.051s 9038 98.7%
B 0.081s 8772 95.8%
B 0.111s 8417 91.9%
B 0.141s 7958 86.9%
B 0.171s 7378 80.6%
B 0.202s 6686 73.0%
B 0.232s 5899 64.4%
B 0.263s 4990 54.5%
B 0.293s 4004 43.7%
B 0.323s 3143 34.3%
B 0.354s 2350 25.7%
B 0.384s 1697 18.5%
B 0.414s 1137 12.4%
B 0.445s 674 7.4%
B 0.475s 350 3.8%
B 0.505s 121 1.3%
B 0.535s 5 0.1%
A 0 0.0mm 15 N F R | B -3 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.566 seconds.
Shutter B opened to 100.0 percent in 0.565 seconds.
Shutter A closed to 0.1 percent in 0.535 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.18e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9887 IDLE
Sat Apr 18 17:27:34 -04 2026 [elapsed=333 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
taking preflight exposures:
acam...OK
acam image:
160M Apr 18 17:27 /atlas/obs/04a/61149/04a61149e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Apr 18 17:27:56 -04 2026 [elapsed=355 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (20 seconds old)
OTA humidity level...OK (8%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Apr 18 17:27:56 -04 2026 [elapsed=355 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61148.89440975|info|galildriver|using focus model: foc=9830+(3.50)*22.4+(-0.35)*60.2=9887.3
61148.89441443|info|galildriver|o 3 IN | cass: 6105747 30.53 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53273378 9887 um b=0f [cmd]
bestfocus for o...OK
Sat Apr 18 17:27:58 -04 2026 [elapsed=357 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Apr 18 17:28:30 -04 2026 [elapsed=389 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 Apr 18 17:28:32 -04 2026 [elapsed=391 sec] Happy observing!
Sat Apr 18 17:28:32 -04 2026 [elapsed=391 sec] Preflight took 391 seconds to complete.
Sat Apr 18 17:28:32 -04 2026 [elapsed=391 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 0.171s 1783 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 0.353s 6775 74.0% A 0.383s 7434 81.2% A 0.413s 7989 87.3% A 0.443s 8444 92.2% A 0.474s 8781 95.9% A 0.504s 9022 98.6% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 102 1.1% B 0.080s 371 4.1% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1754 19.2% B 0.201s 2444 26.7% B 0.231s 3239 35.4% B 0.262s 4137 45.2% B 0.292s 5072 55.4% B 0.322s 5962 65.1% B 0.352s 6748 73.7% B 0.383s 7418 81.0% B 0.413s 7985 87.2% B 0.443s 8443 92.2% B 0.474s 8785 96.0% B 0.504s 9017 98.5% B 0.534s 9136 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 7957 86.9% A 0.171s 7379 80.6% A 0.202s 6692 73.1% A 0.232s 5893 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.322s 3165 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.443s 694 7.6% A 0.474s 358 3.9% A 0.504s 126 1.4% A 0.534s 14 0.2% A 0.565s 1 0.0% B 0.020s 9145 99.9% B 0.050s 9018 98.5% B 0.081s 8771 95.8% B 0.111s 8420 92.0% B 0.141s 7935 86.7% B 0.171s 7357 80.4% B 0.202s 6690 73.1% B 0.232s 5892 64.4% B 0.262s 4952 54.1% B 0.293s 4051 44.3% B 0.323s 3163 34.6% B 0.353s 2392 26.1% B 0.383s 1706 18.6% B 0.414s 1149 12.6% B 0.444s 700 7.6% B 0.474s 357 3.9% B 0.504s 133 1.5% B 0.534s 14 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R