CHL Preflight Night 61084
Executing preflight for 61084 at Thu Feb 12 19:35:56 -03 2026.
Log can be found in /atlas/obs/04/61084/preflight.dat.
Setting donefile '/atlas/obs/04/61084/preflight_complete.20260212223556.6074' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260212223556.6074.
Thu Feb 12 19:35:56 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Feb 12 19:35:56 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [3a5a94a8-101d-4571-bc68-2970b0117daa;1800]
Thu Feb 12 19:35:56 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu Feb 12 19:35:56 -03 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu Feb 12 19:35:56 -03 2026 [elapsed=0 sec] auxcam is disabled.
Thu Feb 12 19:35:56 -03 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Thu Feb 12 19:35:56 -03 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1770935748
OK
Thu Feb 12 19:35:56 -03 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Thu Feb 12 19:35:56 -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
Thu Feb 12 19:35:58 -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 12 19:35:58 -03 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Thu Feb 12 19:35:58 -03 2026 [elapsed=2 sec] CLOCKS
admin: Thu Feb 12 22:35:58 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 26 1024 377 0.315 0.319 0.457
+10.0.11.4 .GPS. 1 u 483 1024 377 0.597 0.335 0.385
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 592 1024 377 224.205 -8.472 0.781
-185.125.190.58 194.121.207.249 2 u 829 1024 377 223.152 -7.537 1.061
+alphyn.canonica 132.163.96.1 2 u 589 1024 377 156.402 -0.896 1.375
-185.125.190.56 79.243.60.50 2 u 502 1024 377 225.086 -8.545 1.470
Thu Feb 12 19:36:00 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (5269GB)
200GB available in /atlas/red...OK (9075GB)
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 5.0T 8.7T 37% /
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 12 19:36:00 -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
Thu Feb 12 19:36:00 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Thu Feb 12 19:36:00 -03 2026 [elapsed=4 sec] SERVICES2
Thu Feb 12 19:36:00 -03 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Feb 12 19:36:04 -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= 914kB time=00:00:29.24 bitrate= 256.0kbits/s speed=1.51e+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
Thu Feb 12 19:39:20 -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: 50.04 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Thu Feb 12 19:40:26 -03 2026 [elapsed=270 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Feb 12 19:40:51 -03 2026 [elapsed=295 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Thu Feb 12 19:40:51 -03 2026 [elapsed=295 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 (-52.9C)
Checking CCD plane: Z0=-200.00 DZDX=+463.00 DZDY=-409.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Feb 12 19:40:51 -03 2026 [elapsed=295 sec] WEATHER
status weather: clear 29.0C 22% 10/13kph@312 DP21.3C/-119C/d IDLE
...OK
Thu Feb 12 19:40:51 -03 2026 [elapsed=295 sec] MET
status...OK
met: c=N o=Y Ro6d Co5d Wo6d Ho6d To6d Do6d IDLE
Thu Feb 12 19:40:51 -03 2026 [elapsed=295 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Feb 12 19:40:51 -03 2026 [elapsed=295 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 78.71 -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 3 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 8 0.1%
A 0.051s 112 1.2%
A 0.081s 391 4.3%
A 0.111s 727 7.9%
A 0.142s 1203 13.1%
A 0.172s 1771 19.3%
A 0.203s 2465 26.9%
A 0.233s 3291 36.0%
A 0.263s 4196 45.8%
A 0.294s 5141 56.2%
A 0.324s 6007 65.6%
A 0.355s 6800 74.3%
A 0.385s 7455 81.4%
A 0.415s 8029 87.7%
A 0.446s 8482 92.7%
A 0.476s 8803 96.2%
A 0.506s 9038 98.7%
A 0.537s 9141 99.9%
A 0.567s 9154 100.0%
B 0.020s 1 0.0%
B 0.051s 89 1.0%
B 0.081s 376 4.1%
B 0.111s 736 8.0%
B 0.142s 1190 13.0%
B 0.172s 1782 19.5%
B 0.202s 2493 27.2%
B 0.233s 3279 35.8%
B 0.263s 4202 45.9%
B 0.293s 5144 56.2%
B 0.324s 6021 65.8%
B 0.354s 6803 74.3%
B 0.385s 7448 81.4%
B 0.415s 8043 87.9%
B 0.445s 8484 92.7%
B 0.476s 8808 96.2%
B 0.506s 9041 98.8%
B 0.536s 9150 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9050 98.9%
A 0.081s 8758 95.7%
A 0.111s 8414 91.9%
A 0.141s 7941 86.7%
A 0.172s 7355 80.3%
A 0.202s 6665 72.8%
A 0.232s 5870 64.1%
A 0.263s 4950 54.1%
A 0.293s 4025 44.0%
A 0.323s 3135 34.2%
A 0.354s 2334 25.5%
A 0.384s 1676 18.3%
A 0.414s 1124 12.3%
A 0.444s 691 7.5%
A 0.475s 340 3.7%
A 0.505s 119 1.3%
A 0.535s 10 0.1%
A 0.566s -1 0.0%
B 0.020s 9147 99.9%
B 0.051s 9038 98.7%
B 0.081s 8770 95.8%
B 0.111s 8415 91.9%
B 0.142s 7942 86.8%
B 0.172s 7356 80.4%
B 0.202s 6663 72.8%
B 0.233s 5871 64.1%
B 0.263s 4958 54.2%
B 0.294s 4004 43.7%
B 0.324s 3139 34.3%
B 0.354s 2350 25.7%
B 0.385s 1699 18.6%
B 0.415s 1118 12.2%
B 0.445s 660 7.2%
B 0.476s 343 3.7%
B 0.506s 114 1.2%
B 0.536s 3 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 0.567 seconds.
Shutter B opened to 100.0 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.566 seconds.
Shutter B closed to 0.0 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.13e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9910 IDLE
Thu Feb 12 19:41:28 -03 2026 [elapsed=332 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Feb 12 19:41 /atlas/obs/04a/61084/04a61084e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Feb 12 19:41:50 -03 2026 [elapsed=354 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (34 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Feb 12 19:41:50 -03 2026 [elapsed=354 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61083.94572795|info|galildriver|using focus model: foc=9830+(3.50)*26.9+(-0.35)*60.2=9903.1
61083.94573297|info|galildriver|o 3 IN | cass: 6103777 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53268680 9911 um b=8f M [focus]
61083.94574314|info|galildriver|o 3 IN | cass: 6103779 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53269036 9909 um b=0f [cmd]
bestfocus for o...OK
Thu Feb 12 19:41:52 -03 2026 [elapsed=356 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Feb 12 19:42:26 -03 2026 [elapsed=390 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 12 19:42:28 -03 2026 [elapsed=392 sec] Happy observing!
Thu Feb 12 19:42:28 -03 2026 [elapsed=392 sec] Preflight took 392 seconds to complete.
Thu Feb 12 19:42:28 -03 2026 [elapsed=392 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 2 0.0% A 0.051s 110 1.2% A 0.081s 373 4.1% A 0.111s 717 7.8% A 0.141s 1181 12.9% A 0.171s 1759 19.2% A 0.202s 2441 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5078 55.5% A 0.322s 5963 65.1% A 0.353s 6756 73.8% A 0.383s 7412 81.0% A 0.413s 7973 87.1% A 0.443s 8434 92.1% A 0.473s 8770 95.8% A 0.503s 9017 98.5% A 0.534s 9136 99.8% A 0.564s 9152 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 380 4.2% B 0.111s 729 8.0% B 0.141s 1203 13.1% B 0.171s 1774 19.4% B 0.202s 2468 27.0% B 0.232s 3268 35.7% B 0.262s 4165 45.5% B 0.292s 5105 55.8% B 0.323s 5988 65.4% B 0.353s 6773 74.0% B 0.383s 7438 81.3% B 0.413s 8001 87.4% B 0.443s 8456 92.4% B 0.474s 8795 96.1% B 0.504s 9018 98.5% B 0.534s 9135 99.8% B 0.564s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9156 100.0% A 0.050s 9056 98.9% A 0.081s 8793 96.1% A 0.111s 8443 92.2% A 0.141s 7983 87.2% A 0.171s 7405 80.9% A 0.201s 6717 73.4% A 0.232s 5931 64.8% A 0.262s 5014 54.8% A 0.292s 4073 44.5% A 0.322s 3200 35.0% A 0.353s 2404 26.3% A 0.383s 1735 19.0% A 0.413s 1162 12.7% A 0.443s 717 7.8% A 0.473s 379 4.1% A 0.503s 136 1.5% A 0.534s 19 0.2% A 0.564s 4 0.0% B 0.020s 9143 99.9% B 0.050s 9009 98.4% B 0.081s 8761 95.7% B 0.111s 8407 91.8% B 0.141s 7934 86.7% B 0.171s 7358 80.4% B 0.202s 6665 72.8% B 0.232s 5865 64.1% B 0.262s 4951 54.1% B 0.292s 4052 44.3% B 0.323s 3164 34.6% B 0.353s 2370 25.9% B 0.383s 1684 18.4% B 0.414s 1131 12.4% B 0.444s 699 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 15 0.2% B 0.565s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R