CHL Preflight Night 61295
Executing preflight for 61295 at Fri Sep 11 18:35:36 -03 2026.
Log can be found in /atlas/obs/04/61295/preflight.dat.
Setting donefile '/atlas/obs/04/61295/preflight_complete.20260911213536.7375' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260911213536.7375.
Fri Sep 11 18:35:36 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Sep 11 18:35:36 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [19dffec3-ece1-4bce-97b1-ff04d5292e8d;1800]
Fri Sep 11 18:35:36 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Fri Sep 11 18:35:37 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Fri Sep 11 18:35:37 -03 2026 [elapsed=1 sec] auxcam is disabled.
Fri Sep 11 18:35:37 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Sep 11 18:35:37 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1789162534
OK
Fri Sep 11 18:35:37 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Sep 11 18:35:37 -03 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
Fri Sep 11 18:35:39 -03 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
Fri Sep 11 18:35:39 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Sep 11 18:35:39 -03 2026 [elapsed=3 sec] CLOCKS
admin: Fri Sep 11 21:35:39 UTC 2026
metbox: 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 347 1024 377 0.333 -0.032 0.029
*10.0.11.4 .GPS. 1 u 828 1024 377 0.611 0.111 0.476
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+alphyn.canonica 132.163.96.1 2 u 966 1024 377 156.758 1.366 1.962
-185.125.190.57 29.88.99.4 2 u 332 1024 377 217.639 -6.622 2.601
-185.125.190.56 29.88.99.4 2 u 699 1024 377 219.535 -6.577 0.927
-185.125.190.58 29.88.99.4 2 u 452 1024 377 225.327 -9.697 2.430
Fri Sep 11 18:35:40 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (9942GB)
200GB available in /atlas/red...OK (13258GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 738G 9.5T 8% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
admin:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 18G 38G 32% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/loop1 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
proc1:/dev/md0p1 15T 1.1T 13T 8% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc2:/dev/md0p1 15T 452G 13T 4% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 903G 13T 7% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 696G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Fri Sep 11 18:35:40 -03 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
Fri Sep 11 18:35:41 -03 2026 [elapsed=5 sec] Disabling mount tracking.
Fri Sep 11 18:35:41 -03 2026 [elapsed=5 sec] Closing dome.
Fri Sep 11 18:36:11 -03 2026 [elapsed=35 sec] SERVICES2
Fri Sep 11 18:36:11 -03 2026 [elapsed=35 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Sep 11 18:36:15 -03 2026 [elapsed=39 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=1.6e+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
Fri Sep 11 18:39:33 -03 2026 [elapsed=237 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: 242.99 -27.58, az/alt=324.64 +86.48 idle(e) IDLE
Fri Sep 11 18:40:29 -03 2026 [elapsed=293 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Sep 11 18:40:51 -03 2026 [elapsed=315 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=10/0 spi=38.6 IDLE
Fri Sep 11 18:40:51 -03 2026 [elapsed=315 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (5 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.0C)
Checking CCD plane: Z0=-191.00 DZDX=+458.00 DZDY=-420.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=10 IDLE
Fri Sep 11 18:40:51 -03 2026 [elapsed=315 sec] WEATHER
status weather: clear 16.2C 42% 16/21kph@302 DP10.0C/-128C/d IDLE
...OK
Fri Sep 11 18:40:52 -03 2026 [elapsed=316 sec] MET
status...OK
met: c=N o=Y Ro21h Co14h Wo4d Ho4d To4d Do4d IDLE
Fri Sep 11 18:40:52 -03 2026 [elapsed=316 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Sep 11 18:40:52 -03 2026 [elapsed=316 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 271.65 -12.93, az/alt=59.88 +60.07 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 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 10 0.1%
A 0.051s 102 1.1%
A 0.081s 382 4.2%
A 0.111s 739 8.1%
A 0.141s 1230 13.4%
A 0.172s 1806 19.7%
A 0.202s 2492 27.2%
A 0.233s 3270 35.7%
A 0.263s 4204 45.9%
A 0.293s 5145 56.2%
A 0.324s 6011 65.7%
A 0.354s 6812 74.4%
A 0.384s 7466 81.6%
A 0.415s 8037 87.8%
A 0.445s 8488 92.7%
A 0.475s 8803 96.2%
A 0.505s 9038 98.7%
A 0.535s 9145 99.9%
B 0.020s 3 0.0%
B 0.050s 98 1.1%
B 0.081s 383 4.2%
B 0.111s 748 8.2%
B 0.141s 1208 13.2%
B 0.171s 1800 19.7%
B 0.202s 2495 27.3%
B 0.232s 3282 35.9%
B 0.262s 4199 45.9%
B 0.293s 5144 56.2%
B 0.323s 6027 65.8%
B 0.353s 6802 74.3%
B 0.383s 7453 81.4%
B 0.414s 8027 87.7%
B 0.444s 8471 92.5%
B 0.475s 8803 96.2%
B 0.505s 9038 98.7%
B 0.535s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9050 98.9%
A 0.081s 8768 95.8%
A 0.111s 8430 92.1%
A 0.141s 7951 86.9%
A 0.172s 7350 80.3%
A 0.202s 6662 72.8%
A 0.232s 5866 64.1%
A 0.262s 4947 54.0%
A 0.293s 4023 43.9%
A 0.323s 3143 34.3%
A 0.353s 2366 25.8%
A 0.383s 1677 18.3%
A 0.414s 1123 12.3%
A 0.444s 684 7.5%
A 0.474s 354 3.9%
A 0.505s 128 1.4%
A 0.535s 0 0.0%
B 0.020s 9150 100.0%
B 0.050s 9043 98.8%
B 0.081s 8774 95.8%
B 0.111s 8422 92.0%
B 0.141s 7959 86.9%
B 0.171s 7380 80.6%
B 0.202s 6688 73.1%
B 0.232s 5895 64.4%
B 0.262s 4990 54.5%
B 0.293s 4040 44.1%
B 0.323s 3165 34.6%
B 0.353s 2374 25.9%
B 0.384s 1719 18.8%
B 0.414s 1149 12.6%
B 0.444s 672 7.3%
B 0.475s 358 3.9%
B 0.505s 124 1.4%
B 0.535s 6 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 99.9 percent in 0.535 seconds.
Shutter B opened to 99.9 percent in 0.535 seconds.
Shutter A closed to 0.0 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=1.22e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[4] foc=9862 IDLE
Fri Sep 11 18:41:29 -03 2026 [elapsed=353 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=10/0 spi=38.6 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Sep 11 18:41 /atlas/obs/04a/61295/04a61295e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Sep 11 18:41:51 -03 2026 [elapsed=375 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (43 seconds old)
OTA humidity level...OK (11%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Sep 11 18:41:51 -03 2026 [elapsed=375 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61294.90407335|info|galildriver|using focus model: foc=9830+(3.50)*14.2+(-0.35)*60.3=9858.6
61294.90407836|info|galildriver|c 4 IN | cass: 9140152 45.70 mm b=23 move=NO | arm: 406816 473.60 mm b=03 move=OK | foc: 53278391 9862 um b=8f M [focus]
61294.90408850|info|galildriver|c 4 IN | cass: 9140147 45.70 mm b=23 move=NO | arm: 406816 473.60 mm b=03 move=OK | foc: 53278676 9861 um b=0f [cmd]
bestfocus for c...OK
Fri Sep 11 18:41:53 -03 2026 [elapsed=377 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Sep 11 18:42:22 -03 2026 [elapsed=406 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.
Fri Sep 11 18:42:24 -03 2026 [elapsed=408 sec] Happy observing!
Fri Sep 11 18:42:24 -03 2026 [elapsed=408 sec] Preflight took 408 seconds to complete.
Fri Sep 11 18:42:24 -03 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 120 1.3% A 0.081s 396 4.3% A 0.111s 749 8.2% A 0.141s 1214 13.3% A 0.172s 1804 19.7% A 0.202s 2489 27.2% A 0.232s 3295 36.0% A 0.262s 4204 45.9% A 0.293s 5133 56.1% A 0.323s 6027 65.8% A 0.353s 6796 74.2% A 0.383s 7453 81.4% A 0.414s 8006 87.5% A 0.444s 8457 92.4% A 0.474s 8793 96.1% A 0.504s 9027 98.6% A 0.535s 9137 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 120 1.3% B 0.081s 381 4.2% B 0.111s 728 8.0% B 0.141s 1201 13.1% B 0.171s 1773 19.4% B 0.201s 2468 27.0% B 0.232s 3268 35.7% B 0.262s 4166 45.5% B 0.292s 5102 55.7% B 0.322s 5988 65.4% B 0.353s 6773 74.0% B 0.383s 7439 81.3% B 0.413s 8000 87.4% B 0.444s 8456 92.4% B 0.474s 8796 96.1% B 0.504s 9023 98.6% B 0.534s 9139 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7959 86.9% A 0.171s 7381 80.6% A 0.201s 6692 73.1% A 0.232s 5894 64.4% A 0.262s 4982 54.4% A 0.292s 4038 44.1% A 0.322s 3194 34.9% A 0.353s 2409 26.3% A 0.383s 1732 18.9% A 0.413s 1164 12.7% A 0.443s 705 7.7% A 0.473s 368 4.0% A 0.504s 132 1.4% A 0.534s 15 0.2% A 0.564s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9026 98.6% B 0.081s 8779 95.9% B 0.111s 8434 92.1% B 0.141s 7969 87.1% B 0.171s 7400 80.8% B 0.201s 6714 73.3% B 0.232s 5919 64.7% B 0.262s 5007 54.7% B 0.292s 4083 44.6% B 0.322s 3191 34.9% B 0.353s 2416 26.4% B 0.383s 1727 18.9% B 0.413s 1159 12.7% B 0.443s 713 7.8% B 0.474s 364 4.0% B 0.504s 137 1.5% B 0.534s 15 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R