CHL Preflight Night 61165
Executing preflight for 61165 at Mon May 4 17:06:54 -04 2026.
Log can be found in /atlas/obs/04/61165/preflight.dat.
Setting donefile '/atlas/obs/04/61165/preflight_complete.20260504210654.14810' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260504210654.14810.
Mon May 4 17:06:54 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon May 4 17:06:54 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [c2a81009-aa87-4334-952a-84d9d77d730c;1800]
Mon May 4 17:06:54 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Mon May 4 17:06:55 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Mon May 4 17:06:55 -04 2026 [elapsed=1 sec] auxcam is disabled.
Mon May 4 17:06:55 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon May 4 17:06:55 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777928812
OK
Mon May 4 17:06:55 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon May 4 17:06:55 -04 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 May 4 17:06:56 -04 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 May 4 17:06:57 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon May 4 17:06:57 -04 2026 [elapsed=3 sec] CLOCKS
admin: Mon May 4 21:06:57 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 130 256 377 0.244 1.275 0.377
+10.0.11.4 .GPS. 1 u 11 256 377 0.668 1.671 0.336
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 912 1024 377 218.130 -8.644 1.774
-185.125.190.58 146.131.121.246 2 u 524 512 377 218.802 -11.133 1.766
+alphyn.canonica 132.163.96.1 2 u 90 256 377 140.680 0.563 0.938
-185.125.190.56 99.220.8.133 2 u 105 512 377 220.104 -10.223 0.920
Mon May 4 17:06:59 -04 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (3558GB)
200GB available in /atlas/red...OK (7308GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.9T 3.4T 67% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 20G 36G 36% /
archon:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 6.7T 7.0T 49% /
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 447G 13T 4% /
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 903G 13T 7% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc4:/dev/md0p1 15T 693G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Mon May 4 17:06:59 -04 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
Mon May 4 17:06:59 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Mon May 4 17:06:59 -04 2026 [elapsed=5 sec] Closing dome.
Mon May 4 17:07:25 -04 2026 [elapsed=31 sec] SERVICES2
Mon May 4 17:07:25 -04 2026 [elapsed=31 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon May 4 17:07:29 -04 2026 [elapsed=35 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=1.54e+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 May 4 17:10:47 -04 2026 [elapsed=233 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: 107.68 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Mon May 4 17:11:53 -04 2026 [elapsed=299 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon May 4 17:12:18 -04 2026 [elapsed=324 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.5 IDLE
Mon May 4 17:12:18 -04 2026 [elapsed=324 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.6C)
Checking CCD plane: Z0=-198.00 DZDX=+468.00 DZDY=-410.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon May 4 17:12:18 -04 2026 [elapsed=324 sec] WEATHER
status weather: C 25.7C 16% 6/12kph@333 DP25.7C/-85C/d IDLE
...OK
Mon May 4 17:12:19 -04 2026 [elapsed=325 sec] MET
status...OK
met: c=N o=Y Ro7d Co6d Wo29d Ho29d To29d Do29d IDLE
Mon May 4 17:12:19 -04 2026 [elapsed=325 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon May 4 17:12:19 -04 2026 [elapsed=325 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 136.35 -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 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 386 4.2%
A 0.111s 726 7.9%
A 0.142s 1208 13.2%
A 0.172s 1777 19.4%
A 0.203s 2487 27.2%
A 0.233s 3281 35.8%
A 0.264s 4203 45.9%
A 0.294s 5144 56.2%
A 0.325s 6008 65.6%
A 0.355s 6803 74.3%
A 0.385s 7450 81.4%
A 0.416s 8028 87.7%
A 0.446s 8471 92.5%
A 0.476s 8803 96.2%
A 0.507s 9035 98.7%
A 0.537s 9140 99.8%
A 0.567s 9154 100.0%
B 0.020s 2 0.0%
B 0.050s 92 1.0%
B 0.081s 377 4.1%
B 0.111s 736 8.0%
B 0.141s 1194 13.0%
B 0.172s 1782 19.5%
B 0.202s 2469 27.0%
B 0.232s 3256 35.6%
B 0.262s 4171 45.6%
B 0.293s 5114 55.9%
B 0.323s 5996 65.5%
B 0.353s 6781 74.1%
B 0.383s 7431 81.2%
B 0.414s 8010 87.5%
B 0.444s 8459 92.4%
B 0.474s 8792 96.0%
B 0.504s 9032 98.7%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9051 98.9%
A 0.081s 8758 95.7%
A 0.111s 8414 91.9%
A 0.142s 7945 86.8%
A 0.172s 7352 80.3%
A 0.202s 6666 72.8%
A 0.233s 5869 64.1%
A 0.263s 4949 54.1%
A 0.293s 3995 43.6%
A 0.324s 3106 33.9%
A 0.354s 2336 25.5%
A 0.384s 1673 18.3%
A 0.414s 1109 12.1%
A 0.445s 681 7.4%
A 0.475s 337 3.7%
A 0.505s 119 1.3%
A 0.536s 8 0.1%
B 0.020s 9149 99.9%
B 0.050s 9044 98.8%
B 0.081s 8781 95.9%
B 0.111s 8430 92.1%
B 0.141s 7976 87.1%
B 0.171s 7396 80.8%
B 0.202s 6710 73.3%
B 0.232s 5924 64.7%
B 0.262s 5021 54.9%
B 0.293s 4062 44.4%
B 0.323s 3167 34.6%
B 0.353s 2374 25.9%
B 0.384s 1717 18.8%
B 0.414s 1151 12.6%
B 0.444s 688 7.5%
B 0.475s 360 3.9%
B 0.505s 127 1.4%
B 0.535s 8 0.1%
A 0 0.0mm 15 N F R | B 0 0.0mm 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 0.535 seconds.
Shutter A closed to 0.1 percent in 0.536 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.14e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9897 IDLE
Mon May 4 17:12:54 -04 2026 [elapsed=360 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.5 IDLE
taking preflight exposures:
acam...OK
acam image:
159M May 4 17:13 /atlas/obs/04a/61165/04a61165e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon May 4 17:13:17 -04 2026 [elapsed=383 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (41 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon May 4 17:13:17 -04 2026 [elapsed=383 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61164.88423100|info|galildriver|using focus model: foc=9830+(3.50)*24.2+(-0.35)*60.2=9893.6
61164.88423602|info|galildriver|o 3 IN | cass: 6104454 30.52 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53271321 9898 um b=8f M [focus]
61164.88424617|info|galildriver|o 3 IN | cass: 6104456 30.52 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53271641 9896 um b=0f [cmd]
bestfocus for o...OK
Mon May 4 17:13:18 -04 2026 [elapsed=384 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon May 4 17:13:52 -04 2026 [elapsed=418 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 May 4 17:13:53 -04 2026 [elapsed=419 sec] Happy observing!
Mon May 4 17:13:53 -04 2026 [elapsed=419 sec] Preflight took 419 seconds to complete.
Mon May 4 17:13:53 -04 2026 [elapsed=419 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 113 1.2% A 0.081s 377 4.1% A 0.111s 736 8.0% A 0.141s 1180 12.9% A 0.171s 1763 19.3% A 0.202s 2442 26.7% A 0.232s 3238 35.4% A 0.262s 4145 45.3% A 0.292s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.414s 7989 87.3% A 0.444s 8445 92.3% A 0.474s 8782 95.9% A 0.504s 9021 98.5% A 0.535s 9136 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 112 1.2% B 0.081s 379 4.1% B 0.111s 727 7.9% B 0.141s 1184 12.9% B 0.171s 1751 19.1% B 0.202s 2466 26.9% B 0.232s 3241 35.4% B 0.262s 4135 45.2% B 0.292s 5070 55.4% B 0.323s 5958 65.1% B 0.353s 6751 73.7% B 0.383s 7421 81.1% B 0.413s 7985 87.2% B 0.443s 8445 92.3% B 0.474s 8786 96.0% B 0.504s 9017 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.051s 9043 98.8% A 0.081s 8757 95.7% A 0.112s 8393 91.7% A 0.142s 7924 86.6% A 0.172s 7339 80.2% A 0.203s 6644 72.6% A 0.233s 5838 63.8% A 0.264s 4919 53.7% A 0.294s 3951 43.2% A 0.325s 3085 33.7% A 0.355s 2317 25.3% A 0.385s 1652 18.0% A 0.415s 1098 12.0% A 0.446s 657 7.2% A 0.476s 333 3.6% A 0.506s 109 1.2% A 0.537s 9 0.1% B 0.020s 9143 99.9% B 0.051s 9012 98.4% B 0.081s 8762 95.7% B 0.112s 8409 91.9% B 0.142s 7936 86.7% B 0.172s 7361 80.4% B 0.203s 6667 72.8% B 0.233s 5836 63.8% B 0.263s 4921 53.8% B 0.294s 3995 43.6% B 0.324s 3111 34.0% B 0.355s 2345 25.6% B 0.385s 1663 18.2% B 0.415s 1115 12.2% B 0.446s 661 7.2% B 0.476s 339 3.7% B 0.506s 116 1.3% B 0.537s 9 0.1% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R