CHL Preflight Night 61077
Executing preflight for 61077 at Thu Feb 5 19:41:30 -03 2026.
Log can be found in /atlas/obs/04/61077/preflight.dat.
Setting donefile '/atlas/obs/04/61077/preflight_complete.20260205224130.22499' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260205224130.22499.
Thu Feb 5 19:41:30 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Feb 5 19:41:30 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [b81eb3d0-d524-4ab0-b03c-6252971425e9;1800]
Thu Feb 5 19:41:30 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu Feb 5 19:41:31 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu Feb 5 19:41:31 -03 2026 [elapsed=1 sec] auxcam is disabled.
Thu Feb 5 19:41:31 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Feb 5 19:41:31 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1770331281
OK
Thu Feb 5 19:41:31 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Feb 5 19:41:31 -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 Feb 5 19:41:32 -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
Thu Feb 5 19:41:33 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Feb 5 19:41:33 -03 2026 [elapsed=3 sec] CLOCKS
admin: Thu Feb 5 22:41:33 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 101 1024 377 0.304 0.346 0.314
+10.0.11.4 .GPS. 1 u 943 1024 377 0.535 0.603 0.478
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 901 1024 377 219.842 -6.052 0.746
-185.125.190.58 194.121.207.249 2 u 878 1024 377 219.649 -4.035 1.333
+alphyn.canonica 132.163.96.1 2 u 820 1024 377 160.131 -1.945 1.259
-185.125.190.56 194.121.207.249 2 u 599 1024 377 219.224 -5.289 0.754
Thu Feb 5 19:41:34 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (5319GB)
200GB available in /atlas/red...OK (9278GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.2T 5.1T 51% /
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/17247
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
archon:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc1:/dev/md0p1 15T 4.8T 8.9T 36% /
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 435G 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
Thu Feb 5 19:41:35 -03 2026 [elapsed=5 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 Feb 5 19:41:35 -03 2026 [elapsed=5 sec] Disabling mount tracking.
Thu Feb 5 19:41:35 -03 2026 [elapsed=5 sec] SERVICES2
Thu Feb 5 19:41:35 -03 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Feb 5 19:41:39 -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= 914kB time=00:00:29.24 bitrate= 256.0kbits/s speed=1.57e+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
Thu Feb 5 19:44:26 -03 2026 [elapsed=176 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: 44.42 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Thu Feb 5 19:45:33 -03 2026 [elapsed=243 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Feb 5 19:45:57 -03 2026 [elapsed=267 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=47.1 IDLE
Thu Feb 5 19:45:57 -03 2026 [elapsed=267 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (7 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.2C)
Checking CCD plane: Z0=-200.00 DZDX=+462.00 DZDY=-409.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Feb 5 19:45:57 -03 2026 [elapsed=267 sec] WEATHER
status weather: C 28.2C 35% 9/14kph@294 DP15.4C/-77C/d IDLE
...OK
Thu Feb 5 19:45:58 -03 2026 [elapsed=268 sec] MET
status...OK
met: c=N o=Y Ro9d Co18h Wo50d Ho50d To50d Do10d IDLE
Thu Feb 5 19:45:58 -03 2026 [elapsed=268 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Feb 5 19:46:00 -03 2026 [elapsed=270 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 73.09 -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 1 0.0mm 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 108 1.2%
A 0.081s 390 4.3%
A 0.111s 743 8.1%
A 0.142s 1222 13.3%
A 0.172s 1796 19.6%
A 0.202s 2492 27.2%
A 0.233s 3289 35.9%
A 0.263s 4190 45.8%
A 0.293s 5139 56.1%
A 0.324s 6013 65.7%
A 0.354s 6805 74.3%
A 0.384s 7450 81.4%
A 0.415s 8024 87.7%
A 0.445s 8468 92.5%
A 0.475s 8804 96.2%
A 0.506s 9035 98.7%
A 0.536s 9140 99.8%
A 0.566s 9156 100.0%
B 0.020s 1 0.0%
B 0.050s 89 1.0%
B 0.081s 376 4.1%
B 0.111s 735 8.0%
B 0.141s 1192 13.0%
B 0.171s 1783 19.5%
B 0.202s 2468 27.0%
B 0.232s 3253 35.5%
B 0.262s 4171 45.6%
B 0.293s 5114 55.9%
B 0.323s 5995 65.5%
B 0.354s 6782 74.1%
B 0.384s 7430 81.2%
B 0.414s 8009 87.5%
B 0.445s 8471 92.5%
B 0.475s 8799 96.1%
B 0.505s 9036 98.7%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9051 98.9%
A 0.081s 8770 95.8%
A 0.111s 8427 92.1%
A 0.141s 7957 86.9%
A 0.172s 7378 80.6%
A 0.202s 6693 73.1%
A 0.232s 5896 64.4%
A 0.263s 4978 54.4%
A 0.293s 4053 44.3%
A 0.324s 3167 34.6%
A 0.354s 2358 25.8%
A 0.385s 1694 18.5%
A 0.415s 1123 12.3%
A 0.445s 690 7.5%
A 0.475s 348 3.8%
A 0.506s 124 1.4%
A 0.536s 10 0.1%
A 0.566s -4 0.0%
B 0.020s 9149 99.9%
B 0.051s 9039 98.7%
B 0.081s 8771 95.8%
B 0.112s 8418 92.0%
B 0.142s 7960 87.0%
B 0.172s 7376 80.6%
B 0.202s 6687 73.1%
B 0.233s 5898 64.4%
B 0.263s 4990 54.5%
B 0.294s 4035 44.1%
B 0.324s 3167 34.6%
B 0.354s 2375 25.9%
B 0.385s 1699 18.6%
B 0.415s 1137 12.4%
B 0.445s 674 7.4%
B 0.476s 352 3.8%
B 0.506s 121 1.3%
B 0.536s 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 0.566 seconds.
Shutter B opened to 99.9 percent in 0.535 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= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.2e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9900 IDLE
Thu Feb 5 19:46:35 -03 2026 [elapsed=305 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=47.1 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Feb 5 19:46 /atlas/obs/04a/61077/04a61077e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Feb 5 19:46:57 -03 2026 [elapsed=327 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (71 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Feb 5 19:46:57 -03 2026 [elapsed=327 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61076.94928340|info|galildriver|using focus model: foc=9830+(3.50)*26.2+(-0.35)*60.3=9900.6
61076.94928807|info|galildriver|o 3 IN | cass: 6104053 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53270729 9901 um b=0f [cmd]
bestfocus for o...OK
Thu Feb 5 19:46:59 -03 2026 [elapsed=329 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Feb 5 19:47:32 -03 2026 [elapsed=362 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 Feb 5 19:47:33 -03 2026 [elapsed=363 sec] Happy observing!
Thu Feb 5 19:47:33 -03 2026 [elapsed=363 sec] Preflight took 363 seconds to complete.
Thu Feb 5 19:47:33 -03 2026 [elapsed=363 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 117 1.3% A 0.081s 385 4.2% A 0.111s 730 8.0% A 0.141s 1198 13.1% A 0.172s 1781 19.5% A 0.202s 2464 26.9% A 0.232s 3265 35.7% A 0.262s 4176 45.6% A 0.293s 5106 55.8% A 0.323s 5991 65.4% A 0.353s 6780 74.1% A 0.383s 7430 81.2% A 0.414s 8009 87.5% A 0.444s 8458 92.4% A 0.474s 8788 96.0% A 0.504s 9030 98.6% A 0.534s 9138 99.8% A 0.565s 9150 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 380 4.2% B 0.111s 728 8.0% B 0.141s 1203 13.1% B 0.171s 1773 19.4% B 0.201s 2467 26.9% B 0.232s 3269 35.7% B 0.262s 4167 45.5% B 0.292s 5103 55.7% B 0.322s 5988 65.4% B 0.353s 6772 74.0% B 0.383s 7440 81.3% B 0.413s 8000 87.4% B 0.444s 8455 92.4% B 0.474s 8795 96.1% B 0.504s 9023 98.6% B 0.534s 9138 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9149 99.9% A 0.050s 9046 98.8% A 0.081s 8776 95.9% A 0.111s 8425 92.0% A 0.141s 7962 87.0% A 0.171s 7380 80.6% A 0.202s 6688 73.1% A 0.232s 5899 64.4% A 0.262s 4977 54.4% A 0.292s 4067 44.4% A 0.322s 3195 34.9% A 0.353s 2404 26.3% A 0.383s 1736 19.0% A 0.413s 1160 12.7% A 0.443s 706 7.7% A 0.474s 368 4.0% A 0.504s 130 1.4% A 0.534s 16 0.2% A 0.564s 2 0.0% B 0.020s 9146 99.9% B 0.051s 9022 98.6% B 0.081s 8779 95.9% B 0.111s 8420 92.0% B 0.141s 7969 87.1% B 0.172s 7379 80.6% B 0.202s 6689 73.1% B 0.232s 5920 64.7% B 0.262s 5010 54.7% B 0.293s 4082 44.6% B 0.323s 3192 34.9% B 0.353s 2417 26.4% B 0.383s 1724 18.8% B 0.414s 1163 12.7% B 0.444s 713 7.8% B 0.474s 365 4.0% B 0.504s 138 1.5% B 0.535s 17 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R