CHL Preflight Night 61096
Executing preflight for 61096 at Tue Feb 24 19:24:02 -03 2026.
Log can be found in /atlas/obs/04/61096/preflight.dat.
Setting donefile '/atlas/obs/04/61096/preflight_complete.20260224222402.11342' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260224222402.11342.
Tue Feb 24 19:24:02 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Feb 24 19:24:02 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [d64635e2-2682-4fa0-b006-57d51e444f1d;1800]
Tue Feb 24 19:24:02 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue Feb 24 19:24:03 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue Feb 24 19:24:03 -03 2026 [elapsed=1 sec] auxcam is disabled.
Tue Feb 24 19:24:03 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Feb 24 19:24:03 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1771971837
OK
Tue Feb 24 19:24:03 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Feb 24 19:24:03 -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
Tue Feb 24 19:24:05 -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
Tue Feb 24 19:24:05 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Feb 24 19:24:05 -03 2026 [elapsed=3 sec] CLOCKS
admin: Tue Feb 24 22:24:05 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 915 1024 377 0.272 -0.622 0.418
+10.0.11.4 .GPS. 1 u 272 1024 377 0.584 -0.811 0.716
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 439 1024 377 224.067 3.441 0.972
-185.125.190.58 37.15.221.189 2 u 262 1024 377 223.570 5.002 0.682
+alphyn.canonica 132.163.96.1 2 u 25 1024 377 152.070 1.097 1.293
-185.125.190.56 79.243.60.50 2 u 957 1024 377 225.732 4.630 1.063
Tue Feb 24 19:24:07 -03 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (5051GB)
200GB available in /atlas/red...OK (8759GB)
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/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 5.3T 8.4T 39% /
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 607G 13T 5% /
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
Tue Feb 24 19:24:07 -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
Tue Feb 24 19:24:07 -03 2026 [elapsed=5 sec] Disabling mount tracking.
Tue Feb 24 19:24:07 -03 2026 [elapsed=5 sec] Closing dome.
Tue Feb 24 19:24:25 -03 2026 [elapsed=23 sec] SERVICES2
Tue Feb 24 19:24:25 -03 2026 [elapsed=23 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Feb 24 19:24:29 -03 2026 [elapsed=27 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=1.53e+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
Tue Feb 24 19:27:41 -03 2026 [elapsed=219 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: 58.88 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Tue Feb 24 19:28:31 -03 2026 [elapsed=269 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Feb 24 19:28:56 -03 2026 [elapsed=294 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Tue Feb 24 19:28:56 -03 2026 [elapsed=294 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 (-53.0C)
Checking CCD plane: Z0=-200.00 DZDX=+455.00 DZDY=-414.00
acam: -53C CCD TEC ION e=1.0s d=0.6s N=0 IDLE
Tue Feb 24 19:28:56 -03 2026 [elapsed=294 sec] WEATHER
status weather: C 27.5C 25% 11/20kph@218 DP19.9C/-60C/d IDLE
...OK
Tue Feb 24 19:28:56 -03 2026 [elapsed=294 sec] MET
status...OK
met: c=N o=Y Ro4d Co3d Wo18d Ho18d To18d Do18d IDLE
Tue Feb 24 19:28:56 -03 2026 [elapsed=294 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Feb 24 19:28:58 -03 2026 [elapsed=296 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 87.55 -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 1 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 6 0.1%
A 0.050s 113 1.2%
A 0.081s 392 4.3%
A 0.112s 729 8.0%
A 0.142s 1203 13.1%
A 0.172s 1775 19.4%
A 0.202s 2466 26.9%
A 0.233s 3262 35.6%
A 0.263s 4159 45.4%
A 0.293s 5113 55.9%
A 0.324s 5985 65.4%
A 0.354s 6801 74.3%
A 0.384s 7431 81.2%
A 0.415s 8025 87.7%
A 0.445s 8469 92.5%
A 0.475s 8804 96.2%
A 0.506s 9030 98.6%
A 0.536s 9140 99.8%
A 0.566s 9156 100.0%
B 0.020s 2 0.0%
B 0.051s 93 1.0%
B 0.081s 401 4.4%
B 0.111s 762 8.3%
B 0.142s 1224 13.4%
B 0.172s 1826 19.9%
B 0.202s 2516 27.5%
B 0.233s 3307 36.1%
B 0.263s 4235 46.3%
B 0.294s 5172 56.5%
B 0.324s 6050 66.1%
B 0.354s 6825 74.6%
B 0.385s 7468 81.6%
B 0.415s 8060 88.0%
B 0.446s 8495 92.8%
B 0.476s 8818 96.3%
B 0.506s 9047 98.8%
B 0.537s 9149 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9055 98.9%
A 0.081s 8769 95.8%
A 0.111s 8427 92.1%
A 0.141s 7957 86.9%
A 0.172s 7377 80.6%
A 0.202s 6692 73.1%
A 0.232s 5898 64.4%
A 0.263s 4978 54.4%
A 0.293s 4051 44.3%
A 0.323s 3166 34.6%
A 0.353s 2378 26.0%
A 0.384s 1717 18.8%
A 0.414s 1140 12.5%
A 0.444s 702 7.7%
A 0.474s 357 3.9%
A 0.505s 130 1.4%
A 0.535s 12 0.1%
A 0.565s -3 0.0%
B 0.020s 9147 99.9%
B 0.051s 9031 98.7%
B 0.081s 8760 95.7%
B 0.111s 8404 91.8%
B 0.142s 7943 86.8%
B 0.172s 7356 80.4%
B 0.202s 6662 72.8%
B 0.233s 5871 64.1%
B 0.263s 4961 54.2%
B 0.293s 4006 43.8%
B 0.323s 3140 34.3%
B 0.354s 2352 25.7%
B 0.384s 1697 18.5%
B 0.414s 1135 12.4%
B 0.445s 675 7.4%
B 0.475s 351 3.8%
B 0.505s 122 1.3%
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 0.537 seconds.
Shutter A closed to 0.0 percent in 0.565 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=1.19e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9894 IDLE
Tue Feb 24 19:29:33 -03 2026 [elapsed=331 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
taking preflight exposures:
acam...OK
acam image:
154M Feb 24 19:29 /atlas/obs/04a/61096/04a61096e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Feb 24 19:29:56 -03 2026 [elapsed=354 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (40 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Feb 24 19:29:56 -03 2026 [elapsed=354 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61095.93745811|info|galildriver|using focus model: foc=9830+(3.50)*25.1+(-0.35)*60.3=9896.8
61095.93746313|info|galildriver|o 3 IN | cass: 6103323 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53271911 9895 um b=8f M [focus]
61095.93747270|info|galildriver|o 3 IN | cass: 6103325 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53271588 9896 um b=0f [cmd]
bestfocus for o...OK
Tue Feb 24 19:29:58 -03 2026 [elapsed=356 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Feb 24 19:30:31 -03 2026 [elapsed=389 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.
Tue Feb 24 19:30:32 -03 2026 [elapsed=390 sec] Happy observing!
Tue Feb 24 19:30:32 -03 2026 [elapsed=390 sec] Preflight took 390 seconds to complete.
Tue Feb 24 19:30:32 -03 2026 [elapsed=390 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 117 1.3% A 0.081s 382 4.2% A 0.111s 730 8.0% A 0.141s 1197 13.1% A 0.171s 1779 19.4% A 0.202s 2465 26.9% A 0.232s 3266 35.7% A 0.262s 4175 45.6% A 0.293s 5107 55.8% A 0.323s 5990 65.4% A 0.353s 6780 74.1% A 0.383s 7431 81.2% A 0.413s 8008 87.5% A 0.444s 8459 92.4% A 0.474s 8788 96.0% A 0.504s 9030 98.6% A 0.534s 9140 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 115 1.3% B 0.081s 379 4.1% B 0.111s 730 8.0% B 0.141s 1187 13.0% B 0.171s 1753 19.2% B 0.201s 2444 26.7% B 0.232s 3242 35.4% B 0.262s 4138 45.2% B 0.292s 5075 55.4% B 0.322s 5961 65.1% B 0.352s 6749 73.7% B 0.383s 7419 81.0% B 0.413s 7986 87.2% B 0.443s 8445 92.3% B 0.473s 8785 96.0% B 0.504s 9018 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9149 99.9% A 0.050s 9037 98.7% A 0.081s 8766 95.8% A 0.111s 8410 91.9% A 0.141s 7940 86.7% A 0.171s 7358 80.4% A 0.202s 6662 72.8% A 0.232s 5869 64.1% A 0.262s 4944 54.0% A 0.292s 4008 43.8% A 0.323s 3137 34.3% A 0.353s 2358 25.8% A 0.383s 1695 18.5% A 0.413s 1126 12.3% A 0.444s 681 7.4% A 0.474s 349 3.8% A 0.504s 123 1.3% A 0.534s 14 0.2% A 0.564s 2 0.0% B 0.020s 9141 99.9% B 0.050s 9010 98.4% B 0.081s 8761 95.7% B 0.111s 8406 91.8% B 0.141s 7934 86.7% B 0.171s 7379 80.6% B 0.202s 6687 73.1% B 0.232s 5862 64.0% B 0.262s 4982 54.4% B 0.292s 4053 44.3% B 0.323s 3163 34.6% B 0.353s 2390 26.1% B 0.383s 1702 18.6% B 0.413s 1148 12.5% B 0.444s 699 7.6% B 0.474s 356 3.9% B 0.504s 133 1.5% B 0.534s 14 0.2% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R