CHL Preflight Night 61308
Executing preflight for 61308 at Thu Sep 24 18:42:44 -03 2026.
Log can be found in /atlas/obs/04/61308/preflight.dat.
Setting donefile '/atlas/obs/04/61308/preflight_complete.20260924214244.22901' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260924214244.22901.
Thu Sep 24 18:42:44 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Sep 24 18:42:44 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [a13c0c4d-a0fa-4abc-8f73-d137065a4a17;1800]
Thu Sep 24 18:42:44 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu Sep 24 18:42:45 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu Sep 24 18:42:45 -03 2026 [elapsed=1 sec] auxcam is disabled.
Thu Sep 24 18:42:45 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Sep 24 18:42:45 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1790286156
OK
Thu Sep 24 18:42:45 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Sep 24 18:42:45 -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
Thu Sep 24 18:42:47 -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
Thu Sep 24 18:42:47 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Sep 24 18:42:47 -03 2026 [elapsed=3 sec] CLOCKS
admin: Thu Sep 24 21:42:47 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 1039 1024 377 0.296 0.414 0.252
+10.0.11.4 .GPS. 1 u 481 1024 377 0.459 0.351 0.275
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-alphyn.canonica 132.163.96.1 2 u 30 1024 377 148.259 -5.363 0.815
+185.125.190.57 29.88.99.4 2 u 344 1024 377 238.199 -0.007 1.168
-185.125.190.56 145.238.80.80 2 u 114 1024 377 236.732 1.077 0.854
-185.125.190.58 29.88.99.4 2 u 201 1024 377 242.264 -1.725 1.239
Thu Sep 24 18:42:48 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (8962GB)
200GB available in /atlas/red...OK (12143GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 1.7T 8.6T 17% /
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/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 2.1T 12T 16% /
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
Thu Sep 24 18:42:48 -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
Thu Sep 24 18:42:49 -03 2026 [elapsed=5 sec] Disabling mount tracking.
Thu Sep 24 18:42:49 -03 2026 [elapsed=5 sec] SERVICES2
Thu Sep 24 18:42:49 -03 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Sep 24 18:42:53 -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= 910kB time=00:00:29.12 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
Thu Sep 24 18:46:10 -03 2026 [elapsed=206 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: 257.47 -27.58, az/alt=324.66 +86.49 idle(e) IDLE
Thu Sep 24 18:47:08 -03 2026 [elapsed=264 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Sep 24 18:47:30 -03 2026 [elapsed=286 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=307.3 IDLE
Thu Sep 24 18:47:30 -03 2026 [elapsed=286 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 (-53.8C)
Checking CCD plane: Z0=-197.00 DZDX=+456.00 DZDY=-415.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Sep 24 18:47:30 -03 2026 [elapsed=286 sec] WEATHER
status weather: C 26.2C 29% 15/19kph@272 DP18.1C/-79C/d IDLE
...OK
Thu Sep 24 18:47:31 -03 2026 [elapsed=287 sec] MET
status...OK
met: c=N o=Y Ro4d Co9h Wo17d Ho17d To17d Do6d IDLE
Thu Sep 24 18:47:31 -03 2026 [elapsed=287 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Sep 24 18:47:31 -03 2026 [elapsed=287 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 286.13 -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 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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 8 0.1%
A 0.051s 98 1.1%
A 0.081s 375 4.1%
A 0.111s 725 7.9%
A 0.142s 1211 13.2%
A 0.172s 1782 19.5%
A 0.202s 2466 26.9%
A 0.232s 3248 35.5%
A 0.263s 4175 45.6%
A 0.293s 5116 55.9%
A 0.324s 5977 65.3%
A 0.354s 6790 74.2%
A 0.384s 7431 81.2%
A 0.415s 8023 87.6%
A 0.445s 8461 92.4%
A 0.475s 8791 96.0%
A 0.506s 9028 98.6%
A 0.536s 9138 99.8%
A 0.566s 9154 100.0%
B 0.020s 0 0.0%
B 0.051s 86 0.9%
B 0.081s 365 4.0%
B 0.111s 722 7.9%
B 0.142s 1177 12.9%
B 0.172s 1782 19.5%
B 0.202s 2470 27.0%
B 0.233s 3256 35.6%
B 0.263s 4171 45.6%
B 0.293s 5115 55.9%
B 0.323s 5994 65.5%
B 0.354s 6781 74.1%
B 0.384s 7432 81.2%
B 0.414s 8010 87.5%
B 0.444s 8459 92.4%
B 0.475s 8791 96.0%
B 0.505s 9031 98.7%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9050 98.9%
A 0.081s 8760 95.7%
A 0.111s 8421 92.0%
A 0.142s 7950 86.8%
A 0.172s 7346 80.2%
A 0.202s 6667 72.8%
A 0.232s 5862 64.0%
A 0.263s 4951 54.1%
A 0.293s 4026 44.0%
A 0.324s 3137 34.3%
A 0.354s 2362 25.8%
A 0.384s 1687 18.4%
A 0.414s 1123 12.3%
A 0.445s 679 7.4%
A 0.475s 338 3.7%
A 0.506s 123 1.3%
A 0.536s 6 0.1%
B 0.020s 9148 99.9%
B 0.051s 9046 98.8%
B 0.081s 8781 95.9%
B 0.111s 8430 92.1%
B 0.142s 7959 86.9%
B 0.172s 7375 80.6%
B 0.202s 6685 73.0%
B 0.233s 5898 64.4%
B 0.263s 4988 54.5%
B 0.293s 4032 44.0%
B 0.324s 3169 34.6%
B 0.354s 2374 25.9%
B 0.384s 1716 18.7%
B 0.415s 1151 12.6%
B 0.445s 687 7.5%
B 0.475s 360 3.9%
B 0.506s 126 1.4%
B 0.536s 6 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 0.566 seconds.
Shutter B opened to 99.9 percent in 0.535 seconds.
Shutter A closed to 0.1 percent in 0.536 seconds.
Shutter B closed to 0.1 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.19e+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
Thu Sep 24 18:48:06 -03 2026 [elapsed=322 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=307.3 IDLE
taking preflight exposures:
acam...OK
acam image:
160M Sep 24 18:48 /atlas/obs/04a/61308/04a61308e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Sep 24 18:48:28 -03 2026 [elapsed=344 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (80 seconds old)
OTA humidity level...OK (10%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Sep 24 18:48:28 -03 2026 [elapsed=344 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61307.90866768|info|galildriver|using focus model: foc=9830+(3.50)*22.4+(-0.35)*60.2=9887.3
61307.90867235|info|galildriver|o 3 IN | cass: 6103669 30.52 mm b=23 move=NO | arm: 407006 473.82 mm b=03 move=OK | foc: 53273457 9887 um b=0f [cmd]
bestfocus for o...OK
Thu Sep 24 18:48:30 -03 2026 [elapsed=346 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Sep 24 18:48:59 -03 2026 [elapsed=375 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 Sep 24 18:49:00 -03 2026 [elapsed=376 sec] Happy observing!
Thu Sep 24 18:49:00 -03 2026 [elapsed=376 sec] Preflight took 376 seconds to complete.
Thu Sep 24 18:49:00 -03 2026 [elapsed=376 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 3 0.0% A 0.050s 115 1.3% A 0.081s 385 4.2% A 0.111s 724 7.9% A 0.141s 1180 12.9% A 0.171s 1762 19.2% A 0.201s 2441 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5073 55.4% A 0.322s 5971 65.2% A 0.353s 6751 73.7% A 0.383s 7413 81.0% A 0.413s 7990 87.3% A 0.443s 8445 92.3% A 0.474s 8784 96.0% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.050s 106 1.2% B 0.081s 370 4.0% B 0.111s 713 7.8% B 0.141s 1186 13.0% B 0.171s 1751 19.1% B 0.201s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4135 45.2% B 0.292s 5073 55.4% B 0.322s 5933 64.8% B 0.352s 6726 73.5% B 0.383s 7401 80.8% B 0.413s 7968 87.0% B 0.443s 8430 92.1% B 0.474s 8776 95.9% B 0.504s 9012 98.4% B 0.534s 9134 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9050 98.9% A 0.081s 8778 95.9% A 0.111s 8420 92.0% A 0.141s 7959 86.9% A 0.171s 7380 80.6% A 0.202s 6692 73.1% A 0.232s 5894 64.4% A 0.262s 4982 54.4% A 0.293s 4038 44.1% A 0.323s 3167 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.414s 1147 12.5% A 0.444s 692 7.6% A 0.474s 359 3.9% A 0.504s 125 1.4% A 0.535s 14 0.2% A 0.565s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9020 98.5% B 0.081s 8772 95.8% B 0.111s 8423 92.0% B 0.141s 7954 86.9% B 0.171s 7381 80.6% B 0.201s 6691 73.1% B 0.232s 5892 64.4% B 0.262s 4980 54.4% B 0.292s 4056 44.3% B 0.322s 3166 34.6% B 0.353s 2393 26.1% B 0.383s 1701 18.6% B 0.413s 1146 12.5% B 0.443s 699 7.6% B 0.474s 357 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R