CHL Preflight Night 61132
Executing preflight for 61132 at Wed Apr 1 18:41:24 -03 2026.
Log can be found in /atlas/obs/04/61132/preflight.dat.
Setting donefile '/atlas/obs/04/61132/preflight_complete.20260401214124.8997' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260401214124.8997.
Wed Apr 1 18:41:24 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Apr 1 18:41:24 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [f9cf2f82-70b5-42dd-98f6-65cdd8a5227d;1800]
Wed Apr 1 18:41:24 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Wed Apr 1 18:41:24 -03 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Wed Apr 1 18:41:24 -03 2026 [elapsed=0 sec] auxcam is disabled.
Wed Apr 1 18:41:24 -03 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Wed Apr 1 18:41:24 -03 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1775079680
OK
Wed Apr 1 18:41:24 -03 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Wed Apr 1 18:41:24 -03 2026 [elapsed=0 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
Wed Apr 1 18:41:26 -03 2026 [elapsed=2 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
Wed Apr 1 18:41:26 -03 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Wed Apr 1 18:41:26 -03 2026 [elapsed=2 sec] CLOCKS
admin: Wed Apr 1 21:41:26 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 56 512 377 0.280 -0.068 0.058
*10.0.11.4 .GPS. 1 u 505 512 377 0.437 0.006 0.085
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 883 1024 377 221.353 -6.593 1.151
+185.125.190.58 29.88.99.4 2 u 115 512 377 219.501 -4.628 0.945
-alphyn.canonica 132.163.96.1 2 u 504 512 377 154.053 -3.325 4.594
-185.125.190.56 146.131.121.246 2 u 551 1024 377 221.511 -6.380 1.776
Wed Apr 1 18:41:28 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (4276GB)
200GB available in /atlas/red...OK (8138GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.2T 4.1T 61% /
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 35G 37% /
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 5.9T 7.8T 44% /
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 442G 13T 4% /
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 691G 13T 6% /
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
Wed Apr 1 18:41:28 -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
Wed Apr 1 18:41:28 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Wed Apr 1 18:41:28 -03 2026 [elapsed=4 sec] SERVICES2
Wed Apr 1 18:41:28 -03 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Apr 1 18:41:32 -03 2026 [elapsed=8 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= 914kB time=00:00:29.24 bitrate= 256.0kbits/s speed=1.58e+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
Wed Apr 1 18:44:52 -03 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: 83.69 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Wed Apr 1 18:45:57 -03 2026 [elapsed=273 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Apr 1 18:46:22 -03 2026 [elapsed=298 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.5 IDLE
Wed Apr 1 18:46:22 -03 2026 [elapsed=298 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 (-53.5C)
Checking CCD plane: Z0=-199.00 DZDX=+458.00 DZDY=-414.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Apr 1 18:46:22 -03 2026 [elapsed=298 sec] WEATHER
status weather: C 26.7C 33% 6/9kph@301 DP16.4C/-52C/d IDLE
...OK
Wed Apr 1 18:46:23 -03 2026 [elapsed=298 sec] MET
status...OK
met: c=N o=Y Ro11d Co9d Wo54d Ho54d To54d Do54d IDLE
Wed Apr 1 18:46:23 -03 2026 [elapsed=299 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Apr 1 18:46:23 -03 2026 [elapsed=299 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 112.37 -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 9 0.1%
A 0.051s 104 1.1%
A 0.081s 388 4.2%
A 0.111s 731 8.0%
A 0.141s 1207 13.2%
A 0.172s 1777 19.4%
A 0.202s 2487 27.2%
A 0.232s 3283 35.9%
A 0.263s 4200 45.9%
A 0.293s 5142 56.2%
A 0.323s 6009 65.6%
A 0.354s 6803 74.3%
A 0.384s 7450 81.4%
A 0.414s 8028 87.7%
A 0.445s 8469 92.5%
A 0.475s 8804 96.2%
A 0.505s 9034 98.7%
A 0.535s 9141 99.9%
A 0.566s 9156 100.0%
B 0.020s 1 0.0%
B 0.051s 89 1.0%
B 0.081s 376 4.1%
B 0.112s 735 8.0%
B 0.142s 1191 13.0%
B 0.172s 1782 19.5%
B 0.203s 2468 27.0%
B 0.233s 3253 35.5%
B 0.263s 4202 45.9%
B 0.294s 5143 56.2%
B 0.324s 6021 65.8%
B 0.354s 6804 74.3%
B 0.385s 7450 81.4%
B 0.415s 8026 87.7%
B 0.445s 8472 92.5%
B 0.476s 8800 96.1%
B 0.506s 9037 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9055 98.9%
A 0.081s 8772 95.8%
A 0.111s 8428 92.1%
A 0.142s 7963 87.0%
A 0.172s 7367 80.5%
A 0.202s 6667 72.8%
A 0.233s 5866 64.1%
A 0.263s 4951 54.1%
A 0.293s 4023 43.9%
A 0.323s 3134 34.2%
A 0.354s 2363 25.8%
A 0.384s 1691 18.5%
A 0.415s 1126 12.3%
A 0.445s 692 7.6%
A 0.475s 346 3.8%
A 0.506s 126 1.4%
A 0.536s 10 0.1%
A 0.566s -5 0.0%
B 0.020s 9149 99.9%
B 0.051s 9040 98.8%
B 0.081s 8772 95.8%
B 0.112s 8416 91.9%
B 0.142s 7960 87.0%
B 0.172s 7379 80.6%
B 0.203s 6685 73.0%
B 0.233s 5898 64.4%
B 0.263s 4990 54.5%
B 0.294s 4034 44.1%
B 0.324s 3166 34.6%
B 0.354s 2375 25.9%
B 0.385s 1699 18.6%
B 0.415s 1152 12.6%
B 0.445s 686 7.5%
B 0.475s 361 3.9%
B 0.506s 121 1.3%
B 0.536s 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 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 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 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=9897 IDLE
Wed Apr 1 18:47:01 -03 2026 [elapsed=337 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.5 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Apr 1 18:47 /atlas/obs/04a/61132/04a61132e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Apr 1 18:47:23 -03 2026 [elapsed=359 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (17 seconds old)
OTA humidity level...OK (8%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Apr 1 18:47:23 -03 2026 [elapsed=359 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61131.90791770|info|galildriver|using focus model: foc=9830+(3.50)*24.4+(-0.35)*60.3=9894.3
61131.90792273|info|galildriver|o 3 IN | cass: 6104679 30.52 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53271325 9898 um b=8f M [focus]
61131.90793288|info|galildriver|o 3 IN | cass: 6104675 30.52 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53271643 9896 um b=0f [cmd]
bestfocus for o...OK
Wed Apr 1 18:47:26 -03 2026 [elapsed=362 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Apr 1 18:47:58 -03 2026 [elapsed=394 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.
Wed Apr 1 18:48:00 -03 2026 [elapsed=396 sec] Happy observing!
Wed Apr 1 18:48:00 -03 2026 [elapsed=396 sec] Preflight took 396 seconds to complete.
Wed Apr 1 18:48:00 -03 2026 [elapsed=396 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 6 0.1% A 0.050s 123 1.3% A 0.081s 391 4.3% A 0.111s 744 8.1% A 0.141s 1197 13.1% A 0.171s 1780 19.4% A 0.202s 2465 26.9% A 0.232s 3267 35.7% A 0.262s 4174 45.6% A 0.293s 5136 56.1% A 0.323s 5991 65.4% A 0.353s 6779 74.1% A 0.383s 7432 81.2% A 0.413s 8008 87.5% A 0.444s 8458 92.4% A 0.474s 8788 96.0% A 0.504s 9029 98.6% A 0.535s 9139 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 121 1.3% B 0.081s 378 4.1% B 0.111s 730 8.0% B 0.141s 1202 13.1% B 0.171s 1774 19.4% B 0.201s 2468 27.0% B 0.232s 3268 35.7% B 0.262s 4167 45.5% B 0.292s 5103 55.7% B 0.322s 5989 65.4% B 0.353s 6772 74.0% B 0.383s 7439 81.3% B 0.413s 8000 87.4% B 0.443s 8456 92.4% B 0.473s 8796 96.1% B 0.503s 9016 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9155 100.0% A 0.050s 9056 98.9% A 0.081s 8793 96.1% A 0.111s 8440 92.2% A 0.141s 7982 87.2% A 0.171s 7406 80.9% A 0.202s 6715 73.4% A 0.232s 5929 64.8% A 0.262s 5012 54.8% A 0.293s 4071 44.5% A 0.323s 3199 34.9% A 0.353s 2404 26.3% A 0.383s 1733 18.9% A 0.414s 1161 12.7% A 0.444s 705 7.7% A 0.474s 369 4.0% A 0.504s 129 1.4% A 0.535s 17 0.2% A 0.565s 3 0.0% B 0.020s 9145 99.9% B 0.050s 9018 98.5% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7968 87.0% B 0.171s 7399 80.8% B 0.202s 6713 73.3% B 0.232s 5921 64.7% B 0.262s 5010 54.7% B 0.292s 4081 44.6% B 0.323s 3192 34.9% B 0.353s 2417 26.4% B 0.383s 1724 18.8% B 0.413s 1163 12.7% B 0.443s 712 7.8% B 0.474s 365 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.565s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R