CHL Preflight Night 61140
Executing preflight for 61140 at Thu Apr 9 17:32:05 -04 2026.
Log can be found in /atlas/obs/04/61140/preflight.dat.
Setting donefile '/atlas/obs/04/61140/preflight_complete.20260409213205.11519' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260409213205.11519.
Thu Apr 9 17:32:05 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Apr 9 17:32:05 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [fe7b46ee-fe55-4af0-b0eb-6e7ac8070b58;1800]
Thu Apr 9 17:32:05 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu Apr 9 17:32:05 -04 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu Apr 9 17:32:06 -04 2026 [elapsed=1 sec] auxcam is disabled.
Thu Apr 9 17:32:06 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Apr 9 17:32:06 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1775770317
OK
Thu Apr 9 17:32:06 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Apr 9 17:32:06 -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
Thu Apr 9 17:32:09 -04 2026 [elapsed=4 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
Thu Apr 9 17:32:09 -04 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Thu Apr 9 17:32:09 -04 2026 [elapsed=4 sec] CLOCKS
admin: Thu Apr 9 21:32:09 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 206 256 377 0.290 -0.434 0.172
*10.0.11.4 .GPS. 1 u 18 256 377 0.467 -0.275 0.190
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 378 512 377 220.225 -7.206 1.095
-185.125.190.58 146.131.121.246 2 u 21 256 377 219.866 -5.698 2.388
-alphyn.canonica 132.163.96.1 2 u 215 256 377 162.023 1.144 1.458
+185.125.190.56 146.131.121.246 2 u 31 256 377 221.953 -7.183 1.161
Thu Apr 9 17:32:11 -04 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (4034GB)
200GB available in /atlas/red...OK (7723GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.4T 3.9T 63% /
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 6.3T 7.4T 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 611G 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
Thu Apr 9 17:32:11 -04 2026 [elapsed=6 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
Thu Apr 9 17:32:11 -04 2026 [elapsed=6 sec] Disabling mount tracking.
Thu Apr 9 17:32:11 -04 2026 [elapsed=6 sec] Closing dome.
Thu Apr 9 17:32:25 -04 2026 [elapsed=20 sec] SERVICES2
Thu Apr 9 17:32:25 -04 2026 [elapsed=20 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Apr 9 17:32:29 -04 2026 [elapsed=24 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=1.64e+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
Thu Apr 9 17:35:47 -04 2026 [elapsed=222 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: 89.30 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Thu Apr 9 17:36:53 -04 2026 [elapsed=288 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Apr 9 17:37:18 -04 2026 [elapsed=313 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.3 IDLE
Thu Apr 9 17:37:18 -04 2026 [elapsed=313 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 (-53.7C)
Checking CCD plane: Z0=-198.00 DZDX=+466.00 DZDY=-411.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Apr 9 17:37:18 -04 2026 [elapsed=313 sec] WEATHER
status weather: C 24.8C 25% 10/15kph@295 DP20.9C/-40C/d IDLE
...OK
Thu Apr 9 17:37:19 -04 2026 [elapsed=314 sec] MET
status...OK
met: c=N o=Y Ro4d Co4d Wo4d Ho4d To4d Do4d IDLE
Thu Apr 9 17:37:19 -04 2026 [elapsed=314 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Apr 9 17:37:19 -04 2026 [elapsed=314 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 117.98 -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 -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 103 1.1%
A 0.081s 378 4.1%
A 0.111s 716 7.8%
A 0.142s 1205 13.2%
A 0.172s 1775 19.4%
A 0.203s 2464 26.9%
A 0.233s 3262 35.6%
A 0.263s 4165 45.5%
A 0.294s 5114 55.9%
A 0.324s 5980 65.3%
A 0.355s 6801 74.3%
A 0.385s 7452 81.4%
A 0.416s 8028 87.7%
A 0.446s 8470 92.5%
A 0.476s 8804 96.2%
A 0.507s 9034 98.7%
A 0.537s 9140 99.8%
A 0.567s 9157 100.0%
B 0.020s 1 0.0%
B 0.050s 82 0.9%
B 0.081s 366 4.0%
B 0.111s 735 8.0%
B 0.141s 1191 13.0%
B 0.172s 1782 19.5%
B 0.202s 2468 27.0%
B 0.233s 3254 35.5%
B 0.263s 4170 45.6%
B 0.293s 5112 55.8%
B 0.324s 5995 65.5%
B 0.354s 6781 74.1%
B 0.384s 7450 81.4%
B 0.415s 8026 87.7%
B 0.445s 8471 92.5%
B 0.475s 8792 96.0%
B 0.506s 9036 98.7%
B 0.536s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9056 98.9%
A 0.081s 8769 95.8%
A 0.111s 8426 92.0%
A 0.141s 7963 87.0%
A 0.172s 7370 80.5%
A 0.202s 6691 73.1%
A 0.232s 5896 64.4%
A 0.262s 4980 54.4%
A 0.293s 4053 44.3%
A 0.323s 3163 34.6%
A 0.353s 2382 26.0%
A 0.384s 1715 18.7%
A 0.414s 1141 12.5%
A 0.444s 704 7.7%
A 0.475s 357 3.9%
A 0.505s 130 1.4%
A 0.535s 12 0.1%
A 0.566s -5 0.0%
B 0.020s 9149 99.9%
B 0.051s 9044 98.8%
B 0.081s 8781 95.9%
B 0.112s 8417 91.9%
B 0.142s 7959 86.9%
B 0.172s 7377 80.6%
B 0.203s 6685 73.0%
B 0.233s 5899 64.4%
B 0.263s 4990 54.5%
B 0.294s 4034 44.1%
B 0.324s 3168 34.6%
B 0.355s 2351 25.7%
B 0.385s 1698 18.5%
B 0.415s 1136 12.4%
B 0.446s 674 7.4%
B 0.476s 350 3.8%
B 0.507s 122 1.3%
B 0.537s 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 0.567 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 0.537 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.08e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9893 IDLE
Thu Apr 9 17:37:54 -04 2026 [elapsed=349 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.3 IDLE
taking preflight exposures:
acam...OK
acam image:
160M Apr 9 17:38 /atlas/obs/04a/61140/04a61140e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Apr 9 17:38:16 -04 2026 [elapsed=371 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (10 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Apr 9 17:38:16 -04 2026 [elapsed=371 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61139.90158564|info|galildriver|using focus model: foc=9830+(3.50)*23.4+(-0.35)*60.2=9890.8
61139.90159066|info|galildriver|o 3 IN | cass: 6105198 30.53 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53272158 9893 um b=8f M [focus]
61139.90160081|info|galildriver|o 3 IN | cass: 6105199 30.53 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53272389 9892 um b=0f [cmd]
bestfocus for o...OK
Thu Apr 9 17:38:19 -04 2026 [elapsed=374 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Apr 9 17:38:52 -04 2026 [elapsed=407 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.
Thu Apr 9 17:38:53 -04 2026 [elapsed=408 sec] Happy observing!
Thu Apr 9 17:38:53 -04 2026 [elapsed=408 sec] Preflight took 408 seconds to complete.
Thu Apr 9 17:38:53 -04 2026 [elapsed=408 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 0.051s 122 1.3% A 0.082s 405 4.4% A 0.112s 762 8.3% A 0.143s 1231 13.4% A 0.173s 1843 20.1% A 0.203s 2538 27.7% A 0.234s 3350 36.6% A 0.264s 4265 46.6% A 0.295s 5191 56.7% A 0.325s 6078 66.4% A 0.356s 6843 74.8% A 0.386s 7513 82.1% A 0.417s 8071 88.2% A 0.447s 8507 92.9% A 0.478s 8828 96.4% A 0.508s 9049 98.9% A 0.538s 9146 99.9% B 0.020s 2 0.0% B 0.051s 110 1.2% B 0.081s 387 4.2% B 0.111s 741 8.1% B 0.142s 1219 13.3% B 0.172s 1796 19.6% B 0.203s 2492 27.2% B 0.233s 3322 36.3% B 0.264s 4229 46.2% B 0.294s 5161 56.4% B 0.324s 6044 66.0% B 0.355s 6818 74.5% B 0.386s 7480 81.7% B 0.416s 8050 87.9% B 0.447s 8493 92.8% B 0.477s 8822 96.4% B 0.508s 9039 98.7% B 0.538s 9144 99.9% B 0.569s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9050 98.9% A 0.081s 8777 95.9% A 0.112s 8408 91.9% A 0.142s 7941 86.7% A 0.173s 7359 80.4% A 0.203s 6668 72.8% A 0.234s 5839 63.8% A 0.264s 4920 53.7% A 0.295s 3979 43.5% A 0.325s 3111 34.0% A 0.355s 2340 25.6% A 0.386s 1670 18.2% A 0.416s 1114 12.2% A 0.446s 669 7.3% A 0.477s 339 3.7% A 0.507s 114 1.2% A 0.538s 10 0.1% A 0.568s 2 0.0% B 0.020s 9145 99.9% B 0.051s 9018 98.5% B 0.081s 8772 95.8% B 0.111s 8420 92.0% B 0.142s 7951 86.9% B 0.172s 7378 80.6% B 0.203s 6690 73.1% B 0.233s 5865 64.1% B 0.264s 4950 54.1% B 0.294s 4022 43.9% B 0.324s 3137 34.3% B 0.355s 2370 25.9% B 0.385s 1683 18.4% B 0.415s 1131 12.4% B 0.445s 687 7.5% B 0.476s 347 3.8% B 0.506s 127 1.4% B 0.536s 12 0.1% B 0.566s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R