CHL Preflight Night 61102
Executing preflight for 61102 at Mon Mar 2 19:17:34 -03 2026.
Log can be found in /atlas/obs/04/61102/preflight.dat.
Setting donefile '/atlas/obs/04/61102/preflight_complete.20260302221734.1045' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260302221734.1045.
Mon Mar 2 19:17:34 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Mar 2 19:17:34 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [985ae8fd-2a50-442c-ae00-cae3fbfe79af;1800]
Mon Mar 2 19:17:34 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Mon Mar 2 19:17:35 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Mon Mar 2 19:17:35 -03 2026 [elapsed=1 sec] auxcam is disabled.
Mon Mar 2 19:17:35 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Mar 2 19:17:35 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1772489849
OK
Mon Mar 2 19:17:35 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Mar 2 19:17:35 -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
Mon Mar 2 19:17:36 -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 Mar 2 19:17:37 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Mar 2 19:17:37 -03 2026 [elapsed=3 sec] CLOCKS
admin: Mon Mar 2 22:17:37 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 115 512 377 0.285 0.026 0.077
*10.0.11.4 .GPS. 1 u 372 512 377 0.464 0.086 0.149
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 846 1024 377 221.220 -7.216 0.847
+185.125.190.58 37.15.221.189 2 u 295 512 377 220.131 -4.559 1.869
-alphyn.canonica 132.163.96.1 2 u 458 512 377 148.868 4.936 2.632
-185.125.190.56 194.121.207.249 2 u 159 512 377 220.872 -6.234 1.457
Mon Mar 2 19:17:38 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (4915GB)
200GB available in /atlas/red...OK (8787GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.6T 4.7T 55% /
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/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 438G 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
Mon Mar 2 19:17:38 -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 Mar 2 19:17:38 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Mon Mar 2 19:17:38 -03 2026 [elapsed=4 sec] SERVICES2
Mon Mar 2 19:17:38 -03 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Mar 2 19:17:42 -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=1.57e+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/CLOSED (0%) IDLE
Mon Mar 2 19:21:01 -03 2026 [elapsed=207 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: 63.18 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Mon Mar 2 19:22:06 -03 2026 [elapsed=272 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Mar 2 19:22:31 -03 2026 [elapsed=297 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Mon Mar 2 19:22:31 -03 2026 [elapsed=297 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.3C)
Checking CCD plane: Z0=-199.00 DZDX=+462.00 DZDY=-410.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Mar 2 19:22:31 -03 2026 [elapsed=297 sec] WEATHER
status weather: C 25.3C 35% 11/19kph@277 DP15.2C/-56C/d IDLE
...OK
Mon Mar 2 19:22:31 -03 2026 [elapsed=297 sec] MET
status...OK
met: c=N o=Y Ro10d Co9d Wo24d Ho24d To24d Do24d IDLE
Mon Mar 2 19:22:31 -03 2026 [elapsed=297 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Mar 2 19:22:31 -03 2026 [elapsed=297 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 91.86 -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 9 0.1%
A 0.051s 111 1.2%
A 0.081s 401 4.4%
A 0.111s 741 8.1%
A 0.142s 1222 13.3%
A 0.172s 1797 19.6%
A 0.202s 2492 27.2%
A 0.233s 3291 36.0%
A 0.263s 4192 45.8%
A 0.293s 5138 56.1%
A 0.323s 6013 65.7%
A 0.354s 6807 74.4%
A 0.384s 7450 81.4%
A 0.414s 8024 87.7%
A 0.445s 8468 92.5%
A 0.475s 8802 96.2%
A 0.505s 9033 98.7%
A 0.536s 9141 99.9%
A 0.566s 9157 100.0%
B 0.020s 1 0.0%
B 0.050s 87 1.0%
B 0.081s 378 4.1%
B 0.111s 723 7.9%
B 0.141s 1171 12.8%
B 0.172s 1761 19.2%
B 0.202s 2446 26.7%
B 0.232s 3251 35.5%
B 0.263s 4172 45.6%
B 0.293s 5114 55.9%
B 0.323s 5993 65.5%
B 0.354s 6780 74.1%
B 0.384s 7431 81.2%
B 0.415s 8026 87.7%
B 0.445s 8471 92.5%
B 0.475s 8800 96.1%
B 0.506s 9035 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9053 98.9%
A 0.081s 8769 95.8%
A 0.111s 8426 92.0%
A 0.142s 7961 87.0%
A 0.172s 7377 80.6%
A 0.202s 6691 73.1%
A 0.232s 5894 64.4%
A 0.263s 4978 54.4%
A 0.293s 4055 44.3%
A 0.323s 3167 34.6%
A 0.354s 2380 26.0%
A 0.384s 1712 18.7%
A 0.415s 1123 12.3%
A 0.445s 691 7.5%
A 0.475s 348 3.8%
A 0.506s 124 1.4%
A 0.536s 11 0.1%
A 0.566s -3 0.0%
B 0.020s 9149 99.9%
B 0.051s 9038 98.7%
B 0.081s 8771 95.8%
B 0.111s 8417 91.9%
B 0.142s 7959 86.9%
B 0.172s 7379 80.6%
B 0.202s 6687 73.1%
B 0.232s 5898 64.4%
B 0.263s 4991 54.5%
B 0.293s 4035 44.1%
B 0.323s 3166 34.6%
B 0.354s 2376 26.0%
B 0.384s 1717 18.8%
B 0.414s 1152 12.6%
B 0.445s 687 7.5%
B 0.475s 361 3.9%
B 0.505s 127 1.4%
B 0.535s 8 0.1%
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 0.0 percent in 0.566 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=1.24e+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
Mon Mar 2 19:23:09 -03 2026 [elapsed=335 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:
155M Mar 2 19:23 /atlas/obs/04a/61102/04a61102e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Mar 2 19:23:31 -03 2026 [elapsed=357 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (15 seconds old)
OTA humidity level...OK (9%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Mar 2 19:23:31 -03 2026 [elapsed=357 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61101.93301168|info|galildriver|using focus model: foc=9830+(3.50)*24.7+(-0.35)*60.3=9895.4
61101.93301634|info|galildriver|o 3 IN | cass: 6104535 30.52 mm b=23 move=NO | arm: 407159 474.00 mm b=03 move=OK | foc: 53271481 9897 um b=0f [cmd]
bestfocus for o...OK
Mon Mar 2 19:23:33 -03 2026 [elapsed=359 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Mar 2 19:24:06 -03 2026 [elapsed=392 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 Mar 2 19:24:07 -03 2026 [elapsed=393 sec] Happy observing!
Mon Mar 2 19:24:07 -03 2026 [elapsed=393 sec] Preflight took 393 seconds to complete.
Mon Mar 2 19:24:07 -03 2026 [elapsed=393 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 0.051s 110 1.2% A 0.081s 385 4.2% A 0.111s 717 7.8% A 0.141s 1181 12.9% A 0.171s 1762 19.2% A 0.202s 2441 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.292s 5078 55.5% A 0.323s 5963 65.1% A 0.353s 6757 73.8% A 0.383s 7412 81.0% A 0.413s 7992 87.3% A 0.443s 8445 92.3% A 0.473s 8767 95.8% A 0.504s 9018 98.5% A 0.534s 9135 99.8% A 0.564s 9151 100.0% B 0.020s 2 0.0% B 0.050s 120 1.3% B 0.081s 381 4.2% B 0.111s 742 8.1% B 0.141s 1218 13.3% B 0.171s 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 0.323s 5988 65.4% B 0.353s 6773 74.0% B 0.383s 7438 81.3% B 0.413s 8001 87.4% B 0.443s 8455 92.4% B 0.474s 8795 96.1% B 0.504s 9023 98.6% B 0.534s 9138 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9046 98.8% A 0.081s 8774 95.8% A 0.111s 8422 92.0% A 0.141s 7959 86.9% A 0.171s 7399 80.8% A 0.201s 6712 73.3% A 0.232s 5924 64.7% A 0.262s 5007 54.7% A 0.292s 4067 44.4% A 0.322s 3195 34.9% A 0.352s 2404 26.3% A 0.383s 1737 19.0% A 0.413s 1162 12.7% A 0.443s 707 7.7% A 0.473s 369 4.0% A 0.504s 130 1.4% A 0.534s 17 0.2% A 0.564s 4 0.0% B 0.020s 9145 99.9% B 0.050s 9025 98.6% B 0.081s 8780 95.9% B 0.111s 8434 92.1% B 0.141s 7969 87.1% B 0.171s 7399 80.8% B 0.202s 6713 73.3% B 0.232s 5921 64.7% B 0.262s 5009 54.7% B 0.292s 4082 44.6% B 0.323s 3192 34.9% B 0.353s 2415 26.4% B 0.383s 1727 18.9% B 0.414s 1161 12.7% B 0.444s 712 7.8% B 0.474s 365 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.565s 0 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R