CHL Preflight Night 61107
Executing preflight for 61107 at Sat Mar 7 19:11:48 -03 2026.
Log can be found in /atlas/obs/04/61107/preflight.dat.
Setting donefile '/atlas/obs/04/61107/preflight_complete.20260307221148.24283' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260307221148.24283.
Sat Mar 7 19:11:48 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Mar 7 19:11:48 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [393fd5d3-bc2b-4b35-9850-edfba45511f7;1800]
Sat Mar 7 19:11:48 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sat Mar 7 19:11:49 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sat Mar 7 19:11:49 -03 2026 [elapsed=1 sec] auxcam is disabled.
Sat Mar 7 19:11:49 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Mar 7 19:11:49 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1772921504
OK
Sat Mar 7 19:11:49 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Mar 7 19:11:49 -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
Sat Mar 7 19:11:51 -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
Sat Mar 7 19:11:51 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Mar 7 19:11:51 -03 2026 [elapsed=3 sec] CLOCKS
admin: Sat Mar 7 22:11:51 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 368 1024 377 0.237 0.541 0.188
+10.0.11.4 .GPS. 1 u 5 1024 377 0.564 0.325 0.370
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+185.125.190.57 194.121.207.249 2 u 948 1024 377 207.232 -0.026 8.414
-185.125.190.58 37.15.221.189 2 u 304 1024 377 227.004 -7.797 0.669
-alphyn.canonica 132.163.96.1 2 u 127 1024 335 158.601 -0.680 1.205
-185.125.190.56 194.121.207.249 2 u 983 1024 377 225.742 -7.211 0.942
Sat Mar 7 19:11:52 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (4867GB)
200GB available in /atlas/red...OK (8671GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.6T 4.7T 55% /
admin:/dev/loop1 105M 105M 0 100% /snap/core/17247
admin:/dev/loop2 105M 105M 0 100% /snap/core/17272
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 20G 35G 37% /
archon:/dev/loop0 105M 105M 0 100% /snap/core/17272
archon:/dev/loop1 105M 105M 0 100% /snap/core/17247
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 5.4T 8.3T 40% /
proc1:/dev/loop0 105M 105M 0 100% /snap/core/17247
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/md0p1 15T 438G 13T 4% /
proc2:/dev/loop0 105M 105M 0 100% /snap/core/17247
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/md0p1 15T 901G 13T 7% /
proc3:/dev/loop1 105M 105M 0 100% /snap/core/17247
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/md0p1 15T 691G 13T 6% /
proc4:/dev/loop1 105M 105M 0 100% /snap/core/17247
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
Sat Mar 7 19:11:52 -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
Sat Mar 7 19:11:52 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Sat Mar 7 19:11:52 -03 2026 [elapsed=4 sec] SERVICES2
Sat Mar 7 19:11:52 -03 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Mar 7 19:11:57 -03 2026 [elapsed=9 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=1.52e+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/OPEN (0%) IDLE
Sat Mar 7 19:14:50 -03 2026 [elapsed=182 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: 66.56 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Sat Mar 7 19:15:55 -03 2026 [elapsed=247 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Mar 7 19:16:20 -03 2026 [elapsed=272 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=41.1 IDLE
Sat Mar 7 19:16:20 -03 2026 [elapsed=272 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.6C)
Checking CCD plane: Z0=-198.00 DZDX=+460.00 DZDY=-412.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Mar 7 19:16:20 -03 2026 [elapsed=272 sec] WEATHER
status weather: C 23.4C 40% 8/17kph@295 DP15.6C/59C/d IDLE
...OK
Sat Mar 7 19:16:21 -03 2026 [elapsed=273 sec] MET
status...OK
met: c=N o=N Ro15d Cx0 Wo29d Ho29d To29d Do29d wait C IDLE
Sat Mar 7 19:16:21 -03 2026 [elapsed=273 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Mar 7 19:16:21 -03 2026 [elapsed=273 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 95.24 -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 0.050s 116 1.3%
A 0.081s 399 4.4%
A 0.111s 741 8.1%
A 0.141s 1222 13.3%
A 0.172s 1797 19.6%
A 0.202s 2493 27.2%
A 0.232s 3290 35.9%
A 0.262s 4194 45.8%
A 0.293s 5136 56.1%
A 0.323s 6013 65.7%
A 0.353s 6807 74.4%
A 0.384s 7452 81.4%
A 0.414s 8025 87.7%
A 0.445s 8468 92.5%
A 0.475s 8803 96.2%
A 0.505s 9034 98.7%
A 0.535s 9141 99.9%
A 0.566s 9157 100.0%
B 0.020s 1 0.0%
B 0.050s 88 1.0%
B 0.081s 376 4.1%
B 0.111s 734 8.0%
B 0.141s 1192 13.0%
B 0.172s 1781 19.5%
B 0.202s 2468 27.0%
B 0.232s 3255 35.6%
B 0.263s 4171 45.6%
B 0.293s 5111 55.8%
B 0.324s 5994 65.5%
B 0.354s 6802 74.3%
B 0.384s 7449 81.4%
B 0.415s 8027 87.7%
B 0.445s 8471 92.5%
B 0.475s 8800 96.1%
B 0.506s 9037 98.7%
B 0.536s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9053 98.9%
A 0.081s 8770 95.8%
A 0.111s 8429 92.1%
A 0.141s 7962 87.0%
A 0.172s 7373 80.5%
A 0.202s 6692 73.1%
A 0.232s 5892 64.4%
A 0.263s 4979 54.4%
A 0.293s 4055 44.3%
A 0.323s 3166 34.6%
A 0.354s 2382 26.0%
A 0.384s 1711 18.7%
A 0.414s 1140 12.5%
A 0.445s 690 7.5%
A 0.475s 347 3.8%
A 0.505s 126 1.4%
A 0.536s 10 0.1%
A 0.566s -4 0.0%
B 0.020s 9149 99.9%
B 0.051s 9045 98.8%
B 0.081s 8771 95.8%
B 0.112s 8418 92.0%
B 0.142s 7962 87.0%
B 0.172s 7378 80.6%
B 0.203s 6687 73.1%
B 0.233s 5899 64.4%
B 0.263s 4990 54.5%
B 0.294s 4036 44.1%
B 0.324s 3169 34.6%
B 0.354s 2374 25.9%
B 0.384s 1716 18.7%
B 0.415s 1152 12.6%
B 0.445s 686 7.5%
B 0.475s 359 3.9%
B 0.506s 128 1.4%
B 0.536s 4 0.0%
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 99.9 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.566 seconds.
Shutter B closed to 0.0 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.23e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9894 IDLE
Sat Mar 7 19:16:58 -03 2026 [elapsed=310 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=41.1 IDLE
taking preflight exposures:
acam...OK
acam image:
155M Mar 7 19:17 /atlas/obs/04a/61107/04a61107e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Mar 7 19:17:21 -03 2026 [elapsed=333 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (5 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Mar 7 19:17:21 -03 2026 [elapsed=333 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61106.92871985|info|galildriver|using focus model: foc=9830+(3.50)*23.1+(-0.35)*60.3=9889.8
61106.92872488|info|galildriver|o 3 IN | cass: 6105775 30.53 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53271864 9895 um b=8f M [focus]
61106.92873502|info|galildriver|o 3 IN | cass: 6105778 30.53 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53272183 9893 um b=0f [cmd]
bestfocus for o...OK
Sat Mar 7 19:17:22 -03 2026 [elapsed=334 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Mar 7 19:17:56 -03 2026 [elapsed=368 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 Mar 7 19:17:57 -03 2026 [elapsed=369 sec] Happy observing!
Sat Mar 7 19:17:57 -03 2026 [elapsed=369 sec] Preflight took 369 seconds to complete.
Sat Mar 7 19:17:57 -03 2026 [elapsed=369 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 116 1.3% A 0.081s 372 4.1% A 0.111s 731 8.0% A 0.141s 1198 13.1% A 0.172s 1779 19.4% A 0.202s 2442 26.7% A 0.232s 3238 35.4% A 0.262s 4174 45.6% A 0.293s 5107 55.8% A 0.323s 5964 65.2% A 0.353s 6757 73.8% A 0.383s 7411 81.0% A 0.413s 7991 87.3% A 0.444s 8447 92.3% A 0.474s 8779 95.9% A 0.504s 9023 98.6% A 0.534s 9138 99.8% A 0.564s 9152 100.0% B 0.020s -1 -0.0% B 0.050s 105 1.1% B 0.081s 369 4.0% B 0.111s 714 7.8% B 0.141s 1186 13.0% B 0.172s 1752 19.1% B 0.202s 2442 26.7% B 0.232s 3239 35.4% B 0.262s 4135 45.2% B 0.292s 5074 55.4% B 0.323s 5960 65.1% B 0.353s 6747 73.7% B 0.383s 7419 81.0% B 0.413s 7968 87.0% B 0.443s 8431 92.1% B 0.473s 8777 95.9% B 0.504s 9013 98.5% B 0.534s 9135 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9047 98.8% A 0.081s 8779 95.9% A 0.111s 8427 92.1% A 0.141s 7961 87.0% A 0.171s 7382 80.6% A 0.202s 6690 73.1% A 0.232s 5899 64.4% A 0.262s 4979 54.4% A 0.293s 4040 44.1% A 0.323s 3168 34.6% A 0.353s 2382 26.0% A 0.383s 1714 18.7% A 0.413s 1144 12.5% A 0.444s 692 7.6% A 0.474s 359 3.9% A 0.504s 124 1.4% A 0.535s 15 0.2% A 0.565s 2 0.0% B 0.020s 9144 99.9% B 0.050s 9014 98.5% B 0.081s 8770 95.8% B 0.111s 8419 92.0% B 0.141s 7950 86.8% B 0.171s 7377 80.6% B 0.202s 6689 73.1% B 0.232s 5893 64.4% B 0.262s 4980 54.4% B 0.292s 4052 44.3% B 0.322s 3188 34.8% B 0.352s 2416 26.4% B 0.383s 1726 18.9% B 0.413s 1161 12.7% B 0.443s 712 7.8% B 0.473s 364 4.0% B 0.504s 137 1.5% B 0.534s 15 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R