CHL Preflight Night 61159
Executing preflight for 61159 at Tue Apr 28 17:11:59 -04 2026.
Log can be found in /atlas/obs/04/61159/preflight.dat.
Setting donefile '/atlas/obs/04/61159/preflight_complete.20260428211159.16338' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260428211159.16338.
Tue Apr 28 17:11:59 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Apr 28 17:11:59 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [7aa3b99d-414f-422e-adf3-89d973712543;1800]
Tue Apr 28 17:11:59 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue Apr 28 17:12:00 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue Apr 28 17:12:00 -04 2026 [elapsed=1 sec] auxcam is disabled.
Tue Apr 28 17:12:00 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Apr 28 17:12:00 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777410714
OK
Tue Apr 28 17:12:00 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Apr 28 17:12:00 -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
Tue Apr 28 17:12:02 -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
Tue Apr 28 17:12:02 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Apr 28 17:12:02 -04 2026 [elapsed=3 sec] CLOCKS
admin: Tue Apr 28 21:12:02 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 33 1024 377 0.313 1.131 0.322
*10.0.11.4 .GPS. 1 u 587 1024 377 0.575 1.566 0.311
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 953 1024 377 223.705 -6.455 1.456
-185.125.190.58 146.131.121.246 2 u 522 1024 377 224.104 -6.624 0.836
+alphyn.canonica 132.163.96.1 2 u 452 1024 377 151.293 -4.828 2.464
-185.125.190.56 146.131.121.246 2 u 793 1024 377 223.358 -5.949 0.778
Tue Apr 28 17:12:03 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3718GB)
200GB available in /atlas/red...OK (7559GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.7T 3.6T 66% /
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 36G 36% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
archon:/dev/loop2 106M 106M 0 100% /snap/core/17292
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 446G 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 902G 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 692G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Tue Apr 28 17:12:03 -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
Tue Apr 28 17:12:03 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Tue Apr 28 17:12:03 -04 2026 [elapsed=4 sec] Closing dome.
Tue Apr 28 17:12:21 -04 2026 [elapsed=22 sec] SERVICES2
Tue Apr 28 17:12:21 -04 2026 [elapsed=22 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Apr 28 17:12:25 -04 2026 [elapsed=26 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= 813x
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 Apr 28 17:15:47 -04 2026 [elapsed=228 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: 103.01 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Tue Apr 28 17:16:53 -04 2026 [elapsed=294 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Apr 28 17:17:18 -04 2026 [elapsed=319 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=472/0 spi=41.0 IDLE
Tue Apr 28 17:17:18 -04 2026 [elapsed=319 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=+458.00 DZDY=-416.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=472 IDLE
Tue Apr 28 17:17:18 -04 2026 [elapsed=319 sec] WEATHER
status weather: C 23.8C 15% 10/12kph@308 DP28.4C/-37C/d IDLE
...OK
Tue Apr 28 17:17:19 -04 2026 [elapsed=320 sec] MET
status...OK
met: c=N o=Y Ro1d Co7h Wo23d Ho23d To23d Do23d IDLE
Tue Apr 28 17:17:19 -04 2026 [elapsed=320 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Apr 28 17:17:19 -04 2026 [elapsed=320 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 131.69 -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 2 0.0%
B 0.020s -2 0.0%
A 1 0.0mm 15 N F R | B -2 -0.1mm 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 118 1.3%
A 0.081s 398 4.3%
A 0.111s 741 8.1%
A 0.142s 1223 13.4%
A 0.172s 1798 19.6%
A 0.203s 2517 27.5%
A 0.233s 3318 36.2%
A 0.264s 4222 46.1%
A 0.294s 5166 56.4%
A 0.324s 6042 66.0%
A 0.354s 6829 74.6%
A 0.385s 7469 81.6%
A 0.415s 8041 87.8%
A 0.445s 8479 92.6%
A 0.476s 8813 96.3%
A 0.506s 9039 98.7%
A 0.536s 9143 99.9%
A 0.567s 9155 100.0%
B 0.020s 2 0.0%
B 0.050s 89 1.0%
B 0.081s 373 4.1%
B 0.111s 735 8.0%
B 0.141s 1192 13.0%
B 0.172s 1780 19.4%
B 0.202s 2470 27.0%
B 0.232s 3282 35.9%
B 0.263s 4202 45.9%
B 0.293s 5143 56.2%
B 0.324s 6022 65.8%
B 0.354s 6802 74.3%
B 0.384s 7450 81.4%
B 0.415s 8027 87.7%
B 0.445s 8483 92.7%
B 0.476s 8810 96.2%
B 0.506s 9042 98.8%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9050 98.9%
A 0.081s 8760 95.7%
A 0.111s 8414 91.9%
A 0.142s 7944 86.8%
A 0.172s 7354 80.3%
A 0.202s 6667 72.8%
A 0.232s 5868 64.1%
A 0.263s 4947 54.0%
A 0.293s 3996 43.7%
A 0.324s 3109 34.0%
A 0.354s 2336 25.5%
A 0.384s 1693 18.5%
A 0.414s 1107 12.1%
A 0.445s 679 7.4%
A 0.475s 338 3.7%
A 0.505s 125 1.4%
A 0.535s 9 0.1%
B 0.020s 9147 99.9%
B 0.050s 9035 98.7%
B 0.080s 8761 95.7%
B 0.111s 8405 91.8%
B 0.141s 7961 87.0%
B 0.171s 7377 80.6%
B 0.201s 6687 73.1%
B 0.232s 5872 64.1%
B 0.262s 4958 54.2%
B 0.292s 4034 44.1%
B 0.323s 3143 34.3%
B 0.353s 2350 25.7%
B 0.383s 1698 18.5%
B 0.414s 1136 12.4%
B 0.444s 673 7.4%
B 0.474s 351 3.8%
B 0.505s 122 1.3%
B 0.535s 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 0.567 seconds.
Shutter B opened to 99.9 percent in 0.536 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= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.2e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9886 IDLE
Tue Apr 28 17:17:55 -04 2026 [elapsed=356 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=472/0 spi=41.0 IDLE
taking preflight exposures:
acam...OK
acam image:
159M Apr 28 17:18 /atlas/obs/04a/61159/04a61159e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Apr 28 17:18:18 -04 2026 [elapsed=379 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (72 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Apr 28 17:18:18 -04 2026 [elapsed=379 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61158.88771385|info|galildriver|using focus model: foc=9830+(3.50)*22.4+(-0.35)*60.2=9887.3
61158.88771853|info|galildriver|o 3 IN | cass: 6105951 30.53 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53273553 9886 um b=0f [cmd]
bestfocus for o...OK
Tue Apr 28 17:18:19 -04 2026 [elapsed=380 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Apr 28 17:18:53 -04 2026 [elapsed=414 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 Apr 28 17:18:54 -04 2026 [elapsed=415 sec] Happy observing!
Tue Apr 28 17:18:54 -04 2026 [elapsed=415 sec] Preflight took 415 seconds to complete.
Tue Apr 28 17:18:54 -04 2026 [elapsed=415 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 2 0.0% A 0.050s 107 1.2% A 0.081s 376 4.1% A 0.111s 722 7.9% A 0.141s 1180 12.9% A 0.171s 1761 19.2% A 0.201s 2442 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.292s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.413s 7988 87.3% A 0.443s 8445 92.3% A 0.474s 8783 95.9% A 0.504s 9022 98.6% A 0.534s 9136 99.8% A 0.564s 9153 100.0% B 0.020s 1 0.0% B 0.050s 117 1.3% B 0.081s 388 4.2% B 0.111s 741 8.1% B 0.141s 1219 13.3% B 0.171s 1794 19.6% B 0.202s 2490 27.2% B 0.232s 3293 36.0% B 0.262s 4198 45.9% B 0.293s 5134 56.1% B 0.323s 6015 65.7% B 0.353s 6793 74.2% B 0.383s 7461 81.5% B 0.414s 8017 87.6% B 0.444s 8469 92.5% B 0.474s 8805 96.2% B 0.504s 9028 98.6% B 0.534s 9140 99.8% B 0.565s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.051s 9044 98.8% A 0.081s 8767 95.8% A 0.111s 8408 91.9% A 0.141s 7942 86.8% A 0.171s 7359 80.4% A 0.202s 6691 73.1% A 0.232s 5894 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.323s 3165 34.6% A 0.353s 2387 26.1% A 0.383s 1710 18.7% A 0.413s 1147 12.5% A 0.444s 694 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 9144 99.9% B 0.050s 9012 98.4% B 0.081s 8762 95.7% B 0.111s 8407 91.8% B 0.141s 7934 86.7% B 0.172s 7356 80.4% B 0.202s 6665 72.8% B 0.232s 5866 64.1% B 0.262s 4951 54.1% B 0.292s 4052 44.3% B 0.323s 3162 34.5% B 0.353s 2392 26.1% B 0.383s 1705 18.6% B 0.413s 1147 12.5% B 0.444s 700 7.6% B 0.474s 357 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.565s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R