CHL Preflight Night 61093
Executing preflight for 61093 at Sat Feb 21 19:27:18 -03 2026.
Log can be found in /atlas/obs/04/61093/preflight.dat.
Setting donefile '/atlas/obs/04/61093/preflight_complete.20260221222718.11342' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260221222718.11342.
Sat Feb 21 19:27:18 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Feb 21 19:27:18 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [f698d68c-51b3-4473-804d-07928d0dd28c;1800]
Sat Feb 21 19:27:18 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sat Feb 21 19:27:19 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sat Feb 21 19:27:19 -03 2026 [elapsed=1 sec] auxcam is disabled.
Sat Feb 21 19:27:19 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Feb 21 19:27:19 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1771712838
OK
Sat Feb 21 19:27:19 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Feb 21 19:27:19 -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 Feb 21 19:27:20 -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
Sat Feb 21 19:27:21 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Feb 21 19:27:21 -03 2026 [elapsed=3 sec] CLOCKS
admin: Sat Feb 21 22:27:21 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 256 1024 377 0.243 -1.321 0.178
*10.0.11.4 .GPS. 1 u 33 1024 377 0.579 -1.239 0.222
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 456 1024 377 224.008 -8.922 1.780
-185.125.190.58 194.121.207.249 2 u 671 1024 377 219.063 -6.354 0.690
+alphyn.canonica 132.163.96.1 2 u 592 1024 377 150.520 1.253 1.124
-185.125.190.56 79.243.60.50 2 u 514 1024 377 225.470 -9.190 2.533
Sat Feb 21 19:27:22 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (5102GB)
200GB available in /atlas/red...OK (8974GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.4T 4.9T 53% /
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 5.1T 8.6T 38% /
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 437G 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 Feb 21 19:27:22 -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 Feb 21 19:27:22 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Sat Feb 21 19:27:22 -03 2026 [elapsed=4 sec] SERVICES2
Sat Feb 21 19:27:22 -03 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Feb 21 19:27:27 -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=1.62e+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
Sat Feb 21 19:30:40 -03 2026 [elapsed=202 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: 56.73 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Sat Feb 21 19:31:46 -03 2026 [elapsed=268 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Feb 21 19:32:11 -03 2026 [elapsed=293 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
Sat Feb 21 19:32:11 -03 2026 [elapsed=293 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (6 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.0C)
Checking CCD plane: Z0=-200.00 DZDX=+462.00 DZDY=-408.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Feb 21 19:32:11 -03 2026 [elapsed=293 sec] WEATHER
status weather: C 27.3C 33% 10/16kph@303 DP17.3C/-19C/d IDLE
...OK
Sat Feb 21 19:32:12 -03 2026 [elapsed=294 sec] MET
status...OK
met: c=N o=Y Ro1d Co21h Wo15d Ho15d To15d Do15d IDLE
Sat Feb 21 19:32:12 -03 2026 [elapsed=294 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Feb 21 19:32:12 -03 2026 [elapsed=294 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 85.41 -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 7 0.1%
A 0.051s 104 1.1%
A 0.081s 384 4.2%
A 0.111s 715 7.8%
A 0.142s 1202 13.1%
A 0.172s 1773 19.4%
A 0.202s 2467 26.9%
A 0.233s 3267 35.7%
A 0.263s 4162 45.5%
A 0.293s 5106 55.8%
A 0.324s 5983 65.4%
A 0.354s 6781 74.1%
A 0.384s 7436 81.2%
A 0.414s 8008 87.5%
A 0.445s 8454 92.4%
A 0.475s 8792 96.0%
A 0.505s 9027 98.6%
A 0.536s 9139 99.8%
A 0.566s 9156 100.0%
B 0.020s 1 0.0%
B 0.051s 87 1.0%
B 0.081s 388 4.2%
B 0.111s 749 8.2%
B 0.142s 1207 13.2%
B 0.172s 1804 19.7%
B 0.202s 2492 27.2%
B 0.233s 3281 35.8%
B 0.263s 4203 45.9%
B 0.293s 5143 56.2%
B 0.323s 6022 65.8%
B 0.354s 6803 74.3%
B 0.384s 7449 81.4%
B 0.414s 8026 87.7%
B 0.445s 8471 92.5%
B 0.475s 8800 96.1%
B 0.505s 9036 98.7%
B 0.536s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9153 100.0%
A 0.051s 9053 98.9%
A 0.081s 8761 95.7%
A 0.111s 8413 91.9%
A 0.142s 7940 86.7%
A 0.172s 7358 80.4%
A 0.202s 6666 72.8%
A 0.233s 5867 64.1%
A 0.263s 4950 54.1%
A 0.294s 4025 44.0%
A 0.324s 3140 34.3%
A 0.354s 2356 25.7%
A 0.385s 1693 18.5%
A 0.415s 1126 12.3%
A 0.445s 690 7.5%
A 0.476s 340 3.7%
A 0.506s 118 1.3%
A 0.537s 9 0.1%
B 0.020s 9148 99.9%
B 0.051s 9039 98.7%
B 0.081s 8771 95.8%
B 0.111s 8417 91.9%
B 0.142s 7960 87.0%
B 0.172s 7356 80.4%
B 0.203s 6662 72.8%
B 0.233s 5874 64.2%
B 0.263s 4959 54.2%
B 0.294s 4004 43.7%
B 0.330s 3035 33.2%
B 0.366s 2170 23.7%
B 0.406s 1363 14.9%
B 0.442s 765 8.4%
B 0.479s 379 4.1%
B 0.512s 88 1.0%
B 0.542s 0 0.0%
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 0.536 seconds.
Shutter A closed to 0.1 percent in 0.537 seconds.
Shutter B closed to 0.0 percent in 0.542 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.22e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9902 IDLE
Sat Feb 21 19:32:47 -03 2026 [elapsed=329 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
taking preflight exposures:
acam...OK
acam image:
156M Feb 21 19:33 /atlas/obs/04a/61093/04a61093e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Feb 21 19:33:09 -03 2026 [elapsed=351 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (53 seconds old)
OTA humidity level...OK (8%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Feb 21 19:33:10 -03 2026 [elapsed=352 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61092.93970261|info|galildriver|using focus model: foc=9830+(3.50)*26.1+(-0.35)*60.2=9900.3
61092.93970762|info|galildriver|o 3 IN | cass: 6103790 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53270355 9902 um b=8f M [focus]
61092.93971777|info|galildriver|o 3 IN | cass: 6103792 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53270630 9901 um b=0f [cmd]
bestfocus for o...OK
Sat Feb 21 19:33:11 -03 2026 [elapsed=353 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Feb 21 19:33:45 -03 2026 [elapsed=387 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 Feb 21 19:33:46 -03 2026 [elapsed=388 sec] Happy observing!
Sat Feb 21 19:33:46 -03 2026 [elapsed=388 sec] Preflight took 388 seconds to complete.
Sat Feb 21 19:33:46 -03 2026 [elapsed=388 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 117 1.3% A 0.081s 383 4.2% A 0.111s 730 8.0% A 0.141s 1199 13.1% A 0.171s 1779 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 0.322s 5991 65.4% A 0.353s 6779 74.1% A 0.383s 7431 81.2% A 0.413s 7991 87.3% A 0.443s 8446 92.3% A 0.473s 8779 95.9% A 0.504s 9023 98.6% A 0.534s 9137 99.8% A 0.564s 9152 100.0% B 0.020s 2 0.0% B 0.050s 111 1.2% B 0.081s 379 4.1% B 0.111s 713 7.8% B 0.141s 1185 12.9% B 0.171s 1751 19.1% B 0.201s 2442 26.7% B 0.232s 3240 35.4% B 0.262s 4137 45.2% B 0.292s 5073 55.4% B 0.322s 5960 65.1% B 0.352s 6748 73.7% B 0.383s 7420 81.1% B 0.413s 7986 87.2% B 0.443s 8444 92.2% B 0.473s 8786 96.0% B 0.503s 9012 98.4% B 0.534s 9133 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9049 98.9% A 0.081s 8781 95.9% A 0.111s 8427 92.1% A 0.141s 7963 87.0% A 0.171s 7383 80.7% A 0.202s 6691 73.1% A 0.232s 5901 64.5% A 0.262s 4980 54.4% A 0.292s 4042 44.2% A 0.323s 3170 34.6% A 0.353s 2382 26.0% A 0.383s 1715 18.7% A 0.414s 1146 12.5% A 0.444s 693 7.6% A 0.474s 360 3.9% A 0.504s 125 1.4% A 0.535s 15 0.2% A 0.565s 3 0.0% B 0.020s 9143 99.9% B 0.050s 9015 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.171s 7378 80.6% B 0.201s 6686 73.0% B 0.232s 5891 64.4% B 0.262s 4981 54.4% B 0.292s 4053 44.3% B 0.322s 3163 34.6% B 0.353s 2390 26.1% B 0.383s 1703 18.6% B 0.413s 1148 12.5% B 0.443s 699 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.564s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R