CHL Preflight Night 61175
Executing preflight for 61175 at Thu May 14 16:59:42 -04 2026.
Log can be found in /atlas/obs/04/61175/preflight.dat.
Setting donefile '/atlas/obs/04/61175/preflight_complete.20260514205942.6687' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260514205942.6687.
Thu May 14 16:59:42 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu May 14 16:59:42 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [e85c43d9-49fe-45f0-8960-7ee8a67b656e;1800]
Thu May 14 16:59:42 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu May 14 16:59:43 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu May 14 16:59:43 -04 2026 [elapsed=1 sec] auxcam is disabled.
Thu May 14 16:59:43 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu May 14 16:59:43 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1778792380
OK
Thu May 14 16:59:43 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu May 14 16:59:43 -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
Thu May 14 16:59:44 -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
Thu May 14 16:59:45 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu May 14 16:59:45 -04 2026 [elapsed=3 sec] CLOCKS
admin: Thu May 14 20:59:45 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 121 256 377 0.347 1.041 0.395
+10.0.11.4 .GPS. 1 u 499 512 377 0.752 1.620 0.180
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 200 1024 377 213.686 -7.849 0.994
-185.125.190.58 146.131.121.246 2 u 54 1024 377 215.795 -7.528 4.072
+alphyn.canonica 132.163.96.1 2 u 174 512 177 142.422 -1.739 1.205
-185.125.190.56 99.220.8.133 2 u 572 1024 377 221.302 -10.301 0.889
Thu May 14 16:59:47 -04 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (3457GB)
200GB available in /atlas/red...OK (7055GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 7.0T 3.3T 68% /
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 35G 37% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/loop1 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 7.0T 6.8T 51% /
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 637G 13T 5% /
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
Thu May 14 16:59:47 -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
Thu May 14 16:59:48 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Thu May 14 16:59:48 -04 2026 [elapsed=6 sec] SERVICES2
Thu May 14 16:59:48 -04 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu May 14 16:59:52 -04 2026 [elapsed=10 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
Thu May 14 17:03:13 -04 2026 [elapsed=211 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: 115.63 -27.58, az/alt=324.56 +86.48 idle(e) IDLE
Thu May 14 17:04:18 -04 2026 [elapsed=276 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu May 14 17:04:43 -04 2026 [elapsed=301 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.4 IDLE
Thu May 14 17:04:43 -04 2026 [elapsed=301 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (1 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.8C)
Checking CCD plane: Z0=-197.00 DZDX=+469.00 DZDY=-414.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu May 14 17:04:43 -04 2026 [elapsed=301 sec] WEATHER
status weather: C 24.6C 12% 9/17kph@278 DP31.0C/-55C/d IDLE
...OK
Thu May 14 17:04:43 -04 2026 [elapsed=301 sec] MET
status...OK
met: c=N o=Y Ro3d Co2h Wo3d Ho3d To3d Do3d IDLE
Thu May 14 17:04:43 -04 2026 [elapsed=301 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu May 14 17:04:43 -04 2026 [elapsed=301 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 144.31 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 8 0.1%
A 0.051s 110 1.2%
A 0.081s 402 4.4%
A 0.111s 741 8.1%
A 0.142s 1220 13.3%
A 0.172s 1797 19.6%
A 0.203s 2492 27.2%
A 0.233s 3291 36.0%
A 0.263s 4190 45.8%
A 0.293s 5137 56.1%
A 0.324s 6016 65.7%
A 0.354s 6803 74.3%
A 0.384s 7449 81.4%
A 0.414s 8025 87.7%
A 0.445s 8468 92.5%
A 0.475s 8804 96.2%
A 0.505s 9035 98.7%
A 0.535s 9140 99.8%
A 0.566s 9155 100.0%
B 0.020s 1 0.0%
B 0.051s 85 0.9%
B 0.081s 378 4.1%
B 0.112s 735 8.0%
B 0.142s 1193 13.0%
B 0.172s 1781 19.5%
B 0.202s 2470 27.0%
B 0.233s 3255 35.6%
B 0.263s 4172 45.6%
B 0.293s 5115 55.9%
B 0.323s 5996 65.5%
B 0.354s 6781 74.1%
B 0.384s 7431 81.2%
B 0.414s 8010 87.5%
B 0.445s 8460 92.4%
B 0.475s 8791 96.0%
B 0.505s 9032 98.7%
B 0.536s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9064 99.0%
A 0.081s 8781 95.9%
A 0.111s 8440 92.2%
A 0.141s 7975 87.1%
A 0.172s 7380 80.6%
A 0.202s 6692 73.1%
A 0.232s 5898 64.4%
A 0.263s 5008 54.7%
A 0.293s 4084 44.6%
A 0.323s 3195 34.9%
A 0.354s 2379 26.0%
A 0.384s 1736 19.0%
A 0.414s 1154 12.6%
A 0.444s 715 7.8%
A 0.475s 366 4.0%
A 0.505s 128 1.4%
A 0.535s 12 0.1%
A 0.566s -3 0.0%
B 0.020s 9148 99.9%
B 0.051s 9040 98.8%
B 0.081s 8770 95.8%
B 0.111s 8417 91.9%
B 0.142s 7961 87.0%
B 0.172s 7357 80.4%
B 0.202s 6663 72.8%
B 0.233s 5872 64.1%
B 0.263s 4959 54.2%
B 0.293s 4005 43.8%
B 0.323s 3141 34.3%
B 0.354s 2352 25.7%
B 0.384s 1697 18.5%
B 0.414s 1134 12.4%
B 0.445s 675 7.4%
B 0.475s 352 3.8%
B 0.505s 121 1.3%
B 0.536s 6 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 0.566 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 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.17e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[4] foc=9888 IDLE
Thu May 14 17:05:21 -04 2026 [elapsed=339 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.4 IDLE
taking preflight exposures:
acam...OK
acam image:
158M May 14 17:05 /atlas/obs/04a/61175/04a61175e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu May 14 17:05:44 -04 2026 [elapsed=362 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (38 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu May 14 17:05:44 -04 2026 [elapsed=362 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61174.87898912|info|galildriver|using focus model: foc=9830+(3.50)*23.0+(-0.35)*60.3=9889.4
61174.87899380|info|galildriver|c 4 IN | cass: 9136913 45.68 mm b=23 move=NO | arm: 407091 473.92 mm b=03 move=OK | foc: 53273052 9889 um b=0f [cmd]
bestfocus for c...OK
Thu May 14 17:05:45 -04 2026 [elapsed=363 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu May 14 17:06:17 -04 2026 [elapsed=395 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 May 14 17:06:19 -04 2026 [elapsed=397 sec] Happy observing!
Thu May 14 17:06:19 -04 2026 [elapsed=397 sec] Preflight took 397 seconds to complete.
Thu May 14 17:06:19 -04 2026 [elapsed=397 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 0.050s 106 1.2% A 0.081s 376 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.171s 1762 19.2% A 0.202s 2443 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.292s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7414 81.0% A 0.413s 7990 87.3% A 0.444s 8445 92.3% A 0.474s 8783 95.9% A 0.504s 9022 98.6% A 0.534s 9136 99.8% A 0.564s 9153 100.0% B 0.020s 0 0.0% B 0.050s 122 1.3% B 0.081s 388 4.2% B 0.111s 742 8.1% B 0.141s 1218 13.3% B 0.171s 1794 19.6% B 0.202s 2490 27.2% B 0.232s 3296 36.0% B 0.262s 4199 45.9% B 0.292s 5131 56.1% B 0.323s 6014 65.7% B 0.353s 6795 74.2% B 0.383s 7463 81.5% B 0.413s 8019 87.6% B 0.444s 8456 92.4% B 0.474s 8796 96.1% B 0.504s 9022 98.6% B 0.534s 9138 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.051s 9049 98.9% A 0.081s 8767 95.8% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.172s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.293s 4039 44.1% A 0.323s 3165 34.6% A 0.353s 2387 26.1% A 0.383s 1710 18.7% A 0.414s 1147 12.5% A 0.444s 693 7.6% A 0.474s 358 3.9% A 0.505s 125 1.4% A 0.535s 14 0.2% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9010 98.4% B 0.081s 8760 95.7% B 0.111s 8407 91.8% B 0.141s 7951 86.9% B 0.171s 7357 80.4% B 0.202s 6664 72.8% B 0.232s 5891 64.4% B 0.262s 4979 54.4% B 0.292s 4054 44.3% B 0.322s 3163 34.6% B 0.353s 2391 26.1% B 0.383s 1703 18.6% B 0.413s 1147 12.5% B 0.444s 700 7.6% B 0.474s 355 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.564s 1 0.0% A 1 0.0mm 15 N F R | B 1 0.0mm 15 N F R