CHL Preflight Night 61095
Executing preflight for 61095 at Mon Feb 23 19:25:10 -03 2026.
Log can be found in /atlas/obs/04/61095/preflight.dat.
Setting donefile '/atlas/obs/04/61095/preflight_complete.20260223222510.11342' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260223222510.11342.
Mon Feb 23 19:25:10 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Feb 23 19:25:10 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [3776ebda-d9fb-44b8-8f32-791234018de2;1800]
Mon Feb 23 19:25:10 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Mon Feb 23 19:25:10 -03 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Mon Feb 23 19:25:10 -03 2026 [elapsed=0 sec] auxcam is disabled.
Mon Feb 23 19:25:10 -03 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Mon Feb 23 19:25:10 -03 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1771885507
OK
Mon Feb 23 19:25:10 -03 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Mon Feb 23 19:25:10 -03 2026 [elapsed=0 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
Mon Feb 23 19:25:12 -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
Mon Feb 23 19:25:12 -03 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Mon Feb 23 19:25:12 -03 2026 [elapsed=2 sec] CLOCKS
admin: Mon Feb 23 22:25:12 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 337 1024 377 0.303 0.350 0.271
*10.0.11.4 .GPS. 1 u 343 1024 377 0.541 0.448 0.288
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 618 1024 377 226.165 -9.243 0.771
+185.125.190.58 194.121.207.249 2 u 758 1024 377 226.505 -8.756 0.668
-alphyn.canonica 132.163.96.1 2 u 209 1024 377 153.255 1.519 0.592
-185.125.190.56 79.243.60.50 2 u 128 1024 377 227.427 -9.246 1.111
Mon Feb 23 19:25:13 -03 2026 [elapsed=3 sec] DISKS
200GB available in /atlas/obs...OK (5063GB)
200GB available in /atlas/red...OK (8755GB)
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 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 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 618G 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
Mon Feb 23 19:25:14 -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
Mon Feb 23 19:25:14 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Mon Feb 23 19:25:14 -03 2026 [elapsed=4 sec] SERVICES2
Mon Feb 23 19:25:14 -03 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Feb 23 19:25:18 -03 2026 [elapsed=8 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=1.42e+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
Mon Feb 23 19:28:34 -03 2026 [elapsed=204 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: 58.18 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Mon Feb 23 19:29:40 -03 2026 [elapsed=270 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Feb 23 19:30:05 -03 2026 [elapsed=295 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Mon Feb 23 19:30:05 -03 2026 [elapsed=295 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.1C)
Checking CCD plane: Z0=-199.00 DZDX=+466.00 DZDY=-407.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Feb 23 19:30:05 -03 2026 [elapsed=295 sec] WEATHER
status weather: C 26.1C 30% 24/27kph@217 DP17.2C/-74C/d IDLE
...OK
Mon Feb 23 19:30:05 -03 2026 [elapsed=295 sec] MET
status...OK
met: c=N o=Y Ro3d Co2d Wo17d Ho17d To17d Do17d IDLE
Mon Feb 23 19:30:06 -03 2026 [elapsed=296 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Feb 23 19:30:06 -03 2026 [elapsed=296 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 86.86 -12.93, az/alt=59.87 +60.08 tracking(w) IDLE 0s
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 8 0.1%
A 0.051s 107 1.2%
A 0.081s 395 4.3%
A 0.112s 729 8.0%
A 0.142s 1203 13.1%
A 0.172s 1774 19.4%
A 0.203s 2462 26.9%
A 0.233s 3262 35.6%
A 0.263s 4164 45.5%
A 0.293s 5114 55.9%
A 0.324s 5981 65.3%
A 0.354s 6776 74.0%
A 0.384s 7434 81.2%
A 0.415s 8011 87.5%
A 0.446s 8470 92.5%
A 0.476s 8804 96.2%
A 0.506s 9034 98.7%
A 0.536s 9139 99.8%
A 0.567s 9156 100.0%
B 0.020s 0 0.0%
B 0.051s 85 0.9%
B 0.081s 367 4.0%
B 0.111s 737 8.1%
B 0.142s 1192 13.0%
B 0.172s 1783 19.5%
B 0.202s 2470 27.0%
B 0.233s 3253 35.5%
B 0.263s 4172 45.6%
B 0.294s 5114 55.9%
B 0.324s 5994 65.5%
B 0.354s 6783 74.1%
B 0.385s 7430 81.2%
B 0.415s 8009 87.5%
B 0.445s 8472 92.5%
B 0.476s 8801 96.1%
B 0.506s 9036 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9055 98.9%
A 0.081s 8770 95.8%
A 0.111s 8427 92.1%
A 0.141s 7958 86.9%
A 0.172s 7374 80.6%
A 0.202s 6692 73.1%
A 0.233s 5899 64.4%
A 0.263s 4979 54.4%
A 0.293s 4023 43.9%
A 0.324s 3135 34.2%
A 0.354s 2358 25.8%
A 0.384s 1694 18.5%
A 0.415s 1124 12.3%
A 0.445s 692 7.6%
A 0.475s 348 3.8%
A 0.506s 122 1.3%
A 0.536s 10 0.1%
A 0.567s -3 0.0%
B 0.020s 9147 99.9%
B 0.051s 9038 98.7%
B 0.081s 8770 95.8%
B 0.111s 8416 91.9%
B 0.141s 7959 86.9%
B 0.172s 7376 80.6%
B 0.202s 6685 73.0%
B 0.232s 5898 64.4%
B 0.263s 4989 54.5%
B 0.293s 4033 44.1%
B 0.323s 3166 34.6%
B 0.353s 2375 25.9%
B 0.383s 1717 18.8%
B 0.414s 1152 12.6%
B 0.444s 686 7.5%
B 0.474s 360 3.9%
B 0.505s 127 1.4%
B 0.535s 7 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 0.567 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.567 seconds.
Shutter B closed to 0.1 percent in 0.535 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=9915 IDLE
Mon Feb 23 19:30:41 -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:
156M Feb 23 19:30 /atlas/obs/04a/61095/04a61095e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Feb 23 19:31:04 -03 2026 [elapsed=354 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (18 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Feb 23 19:31:04 -03 2026 [elapsed=354 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61094.93824864|info|galildriver|using focus model: foc=9830+(3.50)*26.3+(-0.35)*60.2=9901.0
61094.93825400|info|galildriver|o 3 IN | cass: 6103802 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53269693 9906 um b=8f M [focus]
61094.93825962|info|galildriver|o 3 IN | cass: 6103799 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53270841 9900 um b=0f [cmd]
bestfocus for o...OK
Mon Feb 23 19:31:06 -03 2026 [elapsed=356 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Feb 23 19:31:39 -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.
Mon Feb 23 19:31:41 -03 2026 [elapsed=391 sec] Happy observing!
Mon Feb 23 19:31:41 -03 2026 [elapsed=391 sec] Preflight took 391 seconds to complete.
Mon Feb 23 19:31:41 -03 2026 [elapsed=391 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 125 1.4% A 0.082s 392 4.3% A 0.112s 756 8.3% A 0.143s 1232 13.5% A 0.173s 1821 19.9% A 0.203s 2513 27.5% A 0.234s 3321 36.3% A 0.265s 4236 46.3% A 0.295s 5193 56.7% A 0.325s 6073 66.3% A 0.355s 6848 74.8% A 0.386s 7491 81.8% A 0.416s 8057 88.0% A 0.447s 8494 92.8% A 0.477s 8816 96.3% A 0.508s 9045 98.8% A 0.538s 9145 99.9% B 0.020s 2 0.0% B 0.051s 112 1.2% B 0.081s 379 4.1% B 0.112s 741 8.1% B 0.142s 1220 13.3% B 0.173s 1794 19.6% B 0.203s 2492 27.2% B 0.234s 3297 36.0% B 0.264s 4229 46.2% B 0.295s 5163 56.4% B 0.325s 6041 66.0% B 0.355s 6819 74.5% B 0.386s 7480 81.7% B 0.417s 8050 87.9% B 0.447s 8493 92.8% B 0.478s 8822 96.4% B 0.508s 9038 98.7% B 0.539s 9144 99.9% B 0.569s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9149 99.9% A 0.051s 9037 98.7% A 0.081s 8764 95.7% A 0.111s 8410 91.9% A 0.142s 7940 86.7% A 0.172s 7357 80.4% A 0.203s 6662 72.8% A 0.233s 5869 64.1% A 0.264s 4944 54.0% A 0.294s 3979 43.5% A 0.325s 3111 34.0% A 0.355s 2334 25.5% A 0.386s 1656 18.1% A 0.417s 1093 11.9% A 0.447s 656 7.2% A 0.478s 321 3.5% A 0.509s 102 1.1% A 0.539s 8 0.1% B 0.020s 9142 99.9% B 0.051s 9009 98.4% B 0.081s 8761 95.7% B 0.112s 8407 91.8% B 0.142s 7934 86.7% B 0.172s 7357 80.4% B 0.203s 6663 72.8% B 0.233s 5835 63.7% B 0.264s 4920 53.7% B 0.294s 3993 43.6% B 0.325s 3084 33.7% B 0.355s 2320 25.3% B 0.386s 1642 17.9% B 0.416s 1101 12.0% B 0.447s 660 7.2% B 0.477s 330 3.6% B 0.507s 116 1.3% B 0.538s 9 0.1% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R