CHL Preflight Night 61302
Executing preflight for 61302 at Fri Sep 18 18:39:13 -03 2026.
Log can be found in /atlas/obs/04/61302/preflight.dat.
Setting donefile '/atlas/obs/04/61302/preflight_complete.20260918213913.27652' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260918213913.27652.
Fri Sep 18 18:39:14 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Sep 18 18:39:14 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [52902e28-d89c-4cc5-832e-597b423b03dc;1800]
Fri Sep 18 18:39:14 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Fri Sep 18 18:39:14 -03 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Fri Sep 18 18:39:14 -03 2026 [elapsed=0 sec] auxcam is disabled.
Fri Sep 18 18:39:14 -03 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Fri Sep 18 18:39:14 -03 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1789767554
OK
Fri Sep 18 18:39:14 -03 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Fri Sep 18 18:39:14 -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
Fri Sep 18 18:39:16 -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
Fri Sep 18 18:39:16 -03 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Fri Sep 18 18:39:16 -03 2026 [elapsed=2 sec] CLOCKS
admin: Fri Sep 18 21:39:16 UTC 2026
metbox: 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 780 1024 377 0.352 0.958 0.621
*10.0.11.4 .GPS. 1 u 778 1024 377 0.576 1.056 0.632
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+alphyn.canonica 132.163.96.1 2 u 533 1024 377 148.513 -4.992 1.738
-185.125.190.57 29.88.99.4 2 u 149 1024 377 226.479 -9.096 1.285
-185.125.190.56 29.88.99.4 2 u 6 1024 377 229.099 -9.350 2.216
-185.125.190.58 29.88.99.4 2 u 195 1024 377 231.120 -11.127 3.915
Fri Sep 18 18:39:18 -03 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (9411GB)
200GB available in /atlas/red...OK (12550GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 1.3T 9.0T 13% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
admin:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 18G 38G 32% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 1.7T 12T 13% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc2:/dev/md0p1 15T 452G 13T 4% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 903G 13T 7% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 696G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Fri Sep 18 18:39:18 -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
Fri Sep 18 18:39:18 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Fri Sep 18 18:39:18 -03 2026 [elapsed=4 sec] SERVICES2
Fri Sep 18 18:39:18 -03 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Sep 18 18:39:23 -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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.6e+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
Fri Sep 18 18:42:39 -03 2026 [elapsed=205 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: 250.66 -27.58, az/alt=324.64 +86.48 idle(e) IDLE
Fri Sep 18 18:43:35 -03 2026 [elapsed=261 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Sep 18 18:43:57 -03 2026 [elapsed=283 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.7 IDLE
Fri Sep 18 18:43:57 -03 2026 [elapsed=283 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 (-54.8C)
Checking CCD plane: Z0=-192.00 DZDX=+457.00 DZDY=-418.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri Sep 18 18:43:57 -03 2026 [elapsed=283 sec] WEATHER
status weather: C+ 17.7C 47% 6/7kph@358 DP15.3C/158C/d IDLE
...OK
Fri Sep 18 18:43:58 -03 2026 [elapsed=284 sec] MET
status...OK
met: c=Y o=N Rc8 Cx31 Wo11d Ho11d To11d Do55 wait RC IDLE
Fri Sep 18 18:43:58 -03 2026 [elapsed=284 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Sep 18 18:43:58 -03 2026 [elapsed=284 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 279.33 -12.93, az/alt=59.88 +60.07 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 7 0.1%
A 0.051s 113 1.2%
A 0.081s 387 4.2%
A 0.111s 728 8.0%
A 0.141s 1219 13.3%
A 0.172s 1794 19.6%
A 0.202s 2487 27.2%
A 0.232s 3262 35.6%
A 0.262s 4162 45.5%
A 0.293s 5112 55.8%
A 0.323s 6011 65.7%
A 0.354s 6801 74.3%
A 0.384s 7452 81.4%
A 0.414s 8030 87.7%
A 0.445s 8472 92.5%
A 0.475s 8804 96.2%
A 0.505s 9035 98.7%
A 0.536s 9143 99.9%
A 0.566s 9158 100.0%
B 0.020s 1 0.0%
B 0.050s 85 0.9%
B 0.081s 363 4.0%
B 0.111s 722 7.9%
B 0.141s 1176 12.8%
B 0.172s 1781 19.5%
B 0.202s 2470 27.0%
B 0.232s 3255 35.6%
B 0.263s 4169 45.5%
B 0.293s 5113 55.9%
B 0.323s 5995 65.5%
B 0.354s 6780 74.1%
B 0.384s 7433 81.2%
B 0.415s 8010 87.5%
B 0.445s 8460 92.4%
B 0.475s 8803 96.2%
B 0.506s 9037 98.7%
B 0.536s 9149 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9153 100.0%
A 0.051s 9050 98.9%
A 0.081s 8762 95.7%
A 0.111s 8411 91.9%
A 0.142s 7960 87.0%
A 0.172s 7355 80.3%
A 0.202s 6667 72.8%
A 0.232s 5898 64.4%
A 0.262s 4984 54.4%
A 0.293s 4052 44.3%
A 0.323s 3163 34.6%
A 0.353s 2379 26.0%
A 0.383s 1713 18.7%
A 0.414s 1141 12.5%
A 0.444s 702 7.7%
A 0.474s 356 3.9%
A 0.505s 128 1.4%
A 0.535s 10 0.1%
A 0.565s -7 0.0%
B 0.020s 9146 99.9%
B 0.051s 9031 98.7%
B 0.081s 8761 95.7%
B 0.111s 8405 91.8%
B 0.142s 7943 86.8%
B 0.172s 7336 80.1%
B 0.203s 6638 72.5%
B 0.233s 5843 63.8%
B 0.263s 4925 53.8%
B 0.294s 3978 43.5%
B 0.324s 3113 34.0%
B 0.355s 2326 25.4%
B 0.385s 1678 18.3%
B 0.415s 1116 12.2%
B 0.446s 662 7.2%
B 0.476s 332 3.6%
B 0.506s 109 1.2%
B 0.537s 1 0.0%
A 0 0.0mm 15 N F R | B -4 -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 0.536 seconds.
Shutter A closed to 0.0 percent in 0.565 seconds.
Shutter B closed to 0.0 percent in 0.537 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.15e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9863 IDLE
Fri Sep 18 18:44:34 -03 2026 [elapsed=320 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.7 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Sep 18 18:44 /atlas/obs/04a/61302/04a61302e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Sep 18 18:44:56 -03 2026 [elapsed=342 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (48 seconds old)
OTA humidity level...OK (8%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Sep 18 18:44:56 -03 2026 [elapsed=342 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61301.90621500|info|galildriver|using focus model: foc=9830+(3.50)*15.1+(-0.35)*60.2=9861.8
61301.90621967|info|galildriver|o 3 IN | cass: 6105930 30.53 mm b=23 move=NO | arm: 406884 473.68 mm b=03 move=OK | foc: 53278212 9863 um b=0f [cmd]
bestfocus for o...OK
Fri Sep 18 18:44:57 -03 2026 [elapsed=343 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Sep 18 18:45:26 -03 2026 [elapsed=372 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.
Fri Sep 18 18:45:27 -03 2026 [elapsed=373 sec] Happy observing!
Fri Sep 18 18:45:27 -03 2026 [elapsed=373 sec] Preflight took 373 seconds to complete.
Fri Sep 18 18:45:27 -03 2026 [elapsed=373 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 113 1.2% A 0.081s 384 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3267 35.7% A 0.262s 4173 45.6% A 0.292s 5104 55.8% A 0.322s 5998 65.5% A 0.353s 6774 74.0% A 0.383s 7433 81.2% A 0.413s 7987 87.3% A 0.443s 8446 92.3% A 0.473s 8785 96.0% A 0.504s 9022 98.6% A 0.534s 9137 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.050s 107 1.2% B 0.080s 369 4.0% B 0.111s 715 7.8% B 0.141s 1185 12.9% B 0.171s 1752 19.1% B 0.201s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4137 45.2% B 0.292s 5072 55.4% B 0.322s 5932 64.8% B 0.352s 6727 73.5% B 0.382s 7400 80.8% B 0.413s 7969 87.1% B 0.443s 8430 92.1% B 0.473s 8777 95.9% B 0.503s 9011 98.4% B 0.534s 9135 99.8% B 0.564s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9050 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7959 86.9% A 0.171s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4981 54.4% A 0.292s 4038 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1146 12.5% A 0.444s 692 7.6% A 0.474s 358 3.9% A 0.504s 124 1.4% A 0.534s 13 0.1% A 0.565s 1 0.0% B 0.020s 9145 99.9% B 0.050s 9022 98.6% B 0.081s 8775 95.9% B 0.111s 8423 92.0% B 0.141s 7955 86.9% B 0.171s 7381 80.6% B 0.202s 6691 73.1% B 0.232s 5921 64.7% B 0.262s 4984 54.4% B 0.292s 4087 44.6% B 0.322s 3193 34.9% B 0.353s 2417 26.4% B 0.383s 1722 18.8% B 0.413s 1164 12.7% B 0.443s 712 7.8% B 0.473s 366 4.0% B 0.504s 139 1.5% B 0.534s 16 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R