CHL Preflight Night 61076
Executing preflight for 61076 at Wed Feb 4 19:42:09 -03 2026.
Log can be found in /atlas/obs/04/61076/preflight.dat.
Setting donefile '/atlas/obs/04/61076/preflight_complete.20260204224209.22499' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260204224209.22499.
Wed Feb 4 19:42:09 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Feb 4 19:42:09 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [7e2f5082-200f-4cc5-be4c-2bc8434ce9fe;1800]
Wed Feb 4 19:42:09 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Wed Feb 4 19:42:10 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Wed Feb 4 19:42:10 -03 2026 [elapsed=1 sec] auxcam is disabled.
Wed Feb 4 19:42:10 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Feb 4 19:42:10 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1770244926
OK
Wed Feb 4 19:42:11 -03 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Wed Feb 4 19:42:11 -03 2026 [elapsed=2 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 Feb 4 19:42:12 -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
Wed Feb 4 19:42:13 -03 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Wed Feb 4 19:42:13 -03 2026 [elapsed=4 sec] CLOCKS
admin: Wed Feb 4 22:42:13 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 357 1024 377 0.305 -0.292 0.269
*10.0.11.4 .GPS. 1 u 148 1024 377 0.551 -0.538 0.497
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 406 1024 377 221.064 -7.541 0.817
-185.125.190.58 183.160.133.132 2 u 453 1024 377 218.170 -5.874 1.025
+alphyn.canonica 132.163.96.1 2 u 58 1024 277 158.172 -2.858 1.497
-185.125.190.56 194.121.207.249 2 u 393 1024 377 221.885 -7.244 1.940
Wed Feb 4 19:42:14 -03 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (5389GB)
200GB available in /atlas/red...OK (9290GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.1T 5.2T 50% /
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 36G 36% /
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 434G 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
Wed Feb 4 19:42:14 -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
Wed Feb 4 19:42:14 -03 2026 [elapsed=5 sec] Disabling mount tracking.
Wed Feb 4 19:42:14 -03 2026 [elapsed=5 sec] SERVICES2
Wed Feb 4 19:42:14 -03 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Feb 4 19:42:18 -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=1.57e+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
Wed Feb 4 19:45:06 -03 2026 [elapsed=177 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: 43.60 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Wed Feb 4 19:46:12 -03 2026 [elapsed=243 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Feb 4 19:46:37 -03 2026 [elapsed=268 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.2 IDLE
Wed Feb 4 19:46:37 -03 2026 [elapsed=268 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.4C)
Checking CCD plane: Z0=-199.00 DZDX=+460.00 DZDY=-412.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Feb 4 19:46:37 -03 2026 [elapsed=268 sec] WEATHER
status weather: C 24.3C 39% 12/20kph@278 DP13.4C/-63C/d IDLE
...OK
Wed Feb 4 19:46:38 -03 2026 [elapsed=269 sec] MET
status...OK
met: c=N o=Y Ro8d Co2d Wo49d Ho49d To49d Do9d IDLE
Wed Feb 4 19:46:38 -03 2026 [elapsed=269 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Feb 4 19:46:38 -03 2026 [elapsed=269 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 72.27 -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 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 6 0.1%
A 0.051s 104 1.1%
A 0.081s 382 4.2%
A 0.112s 732 8.0%
A 0.142s 1205 13.2%
A 0.172s 1775 19.4%
A 0.203s 2464 26.9%
A 0.233s 3261 35.6%
A 0.264s 4161 45.5%
A 0.294s 5140 56.2%
A 0.325s 6013 65.7%
A 0.355s 6800 74.3%
A 0.385s 7450 81.4%
A 0.416s 8026 87.7%
A 0.446s 8470 92.5%
A 0.476s 8805 96.2%
A 0.507s 9036 98.7%
A 0.537s 9141 99.9%
A 0.567s 9157 100.0%
B 0.020s 1 0.0%
B 0.051s 89 1.0%
B 0.081s 376 4.1%
B 0.111s 734 8.0%
B 0.141s 1192 13.0%
B 0.172s 1782 19.5%
B 0.202s 2469 27.0%
B 0.232s 3253 35.5%
B 0.263s 4170 45.6%
B 0.293s 5112 55.8%
B 0.323s 5993 65.5%
B 0.353s 6782 74.1%
B 0.384s 7430 81.2%
B 0.414s 8010 87.5%
B 0.444s 8459 92.4%
B 0.475s 8800 96.1%
B 0.505s 9036 98.7%
B 0.535s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9055 98.9%
A 0.081s 8769 95.8%
A 0.112s 8414 91.9%
A 0.142s 7940 86.7%
A 0.172s 7358 80.4%
A 0.203s 6667 72.8%
A 0.233s 5870 64.1%
A 0.263s 4951 54.1%
A 0.294s 4021 43.9%
A 0.324s 3138 34.3%
A 0.354s 2357 25.7%
A 0.384s 1695 18.5%
A 0.415s 1126 12.3%
A 0.445s 690 7.5%
A 0.475s 348 3.8%
A 0.505s 124 1.4%
A 0.536s 8 0.1%
B 0.020s 9148 99.9%
B 0.051s 9038 98.7%
B 0.081s 8770 95.8%
B 0.111s 8416 91.9%
B 0.142s 7959 86.9%
B 0.172s 7375 80.6%
B 0.202s 6662 72.8%
B 0.232s 5871 64.1%
B 0.263s 4957 54.2%
B 0.293s 4003 43.7%
B 0.323s 3140 34.3%
B 0.354s 2351 25.7%
B 0.384s 1699 18.6%
B 0.414s 1135 12.4%
B 0.445s 673 7.4%
B 0.475s 351 3.8%
B 0.505s 121 1.3%
B 0.535s 4 0.0%
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 0.567 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 0.0 percent in 0.535 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=9896 IDLE
Wed Feb 4 19:47:14 -03 2026 [elapsed=305 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.2 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Feb 4 19:47 /atlas/obs/04a/61076/04a61076e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Feb 4 19:47:36 -03 2026 [elapsed=327 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (20 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Feb 4 19:47:36 -03 2026 [elapsed=327 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61075.94973522|info|galildriver|using focus model: foc=9830+(3.50)*24.1+(-0.35)*60.2=9893.3
61075.94974024|info|galildriver|o 3 IN | cass: 6105860 30.53 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53271565 9896 um b=8f M [focus]
61075.94975040|info|galildriver|o 3 IN | cass: 6105857 30.53 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53271907 9895 um b=0f [cmd]
bestfocus for o...OK
Wed Feb 4 19:47:39 -03 2026 [elapsed=330 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Feb 4 19:48:11 -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.
Wed Feb 4 19:48:13 -03 2026 [elapsed=364 sec] Happy observing!
Wed Feb 4 19:48:13 -03 2026 [elapsed=364 sec] Preflight took 364 seconds to complete.
Wed Feb 4 19:48:13 -03 2026 [elapsed=364 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 123 1.3% A 0.081s 383 4.2% A 0.111s 731 8.0% A 0.141s 1197 13.1% A 0.171s 1780 19.4% A 0.202s 2465 26.9% A 0.232s 3265 35.7% A 0.262s 4174 45.6% A 0.292s 5106 55.8% A 0.323s 5991 65.4% A 0.353s 6779 74.1% A 0.383s 7430 81.2% A 0.414s 8008 87.5% A 0.444s 8459 92.4% A 0.474s 8788 96.0% A 0.504s 9029 98.6% A 0.534s 9140 99.8% A 0.565s 9152 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 380 4.2% B 0.111s 727 7.9% B 0.141s 1203 13.1% B 0.172s 1774 19.4% B 0.202s 2467 26.9% B 0.232s 3268 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 8001 87.4% B 0.443s 8442 92.2% B 0.474s 8786 96.0% B 0.504s 9017 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9148 99.9% A 0.050s 9044 98.8% A 0.081s 8782 95.9% A 0.111s 8436 92.2% A 0.141s 7974 87.1% A 0.171s 7398 80.8% A 0.202s 6709 73.3% A 0.232s 5922 64.7% A 0.262s 5006 54.7% A 0.292s 4065 44.4% A 0.322s 3192 34.9% A 0.353s 2403 26.3% A 0.383s 1738 19.0% A 0.413s 1159 12.7% A 0.443s 706 7.7% A 0.474s 368 4.0% A 0.504s 130 1.4% A 0.534s 18 0.2% A 0.564s 3 0.0% B 0.020s 9145 99.9% B 0.050s 9024 98.6% B 0.081s 8780 95.9% B 0.111s 8433 92.1% B 0.141s 7970 87.1% B 0.171s 7399 80.8% B 0.202s 6713 73.3% B 0.232s 5920 64.7% B 0.262s 5010 54.7% B 0.292s 4083 44.6% B 0.323s 3192 34.9% B 0.353s 2416 26.4% B 0.383s 1724 18.8% B 0.413s 1162 12.7% B 0.443s 725 7.9% B 0.474s 365 4.0% B 0.504s 144 1.6% B 0.534s 19 0.2% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R