CHL Preflight Night 61168
Executing preflight for 61168 at Thu May 7 17:04:39 -04 2026.
Log can be found in /atlas/obs/04/61168/preflight.dat.
Setting donefile '/atlas/obs/04/61168/preflight_complete.20260507210439.14810' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260507210439.14810.
Thu May 7 17:04:39 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu May 7 17:04:39 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [c688a021-291f-47cc-81e3-8356beb61ddc;1800]
Thu May 7 17:04:39 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Thu May 7 17:04:40 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Thu May 7 17:04:40 -04 2026 [elapsed=1 sec] auxcam is disabled.
Thu May 7 17:04:40 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu May 7 17:04:40 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1778187875
OK
Thu May 7 17:04:40 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu May 7 17:04:40 -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 7 17:04:42 -04 2026 [elapsed=3 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 7 17:04:42 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu May 7 17:04:42 -04 2026 [elapsed=3 sec] CLOCKS
admin: Thu May 7 21:04:42 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 1006 1024 377 0.314 -0.068 0.424
+10.0.11.4 .GPS. 1 u 910 1024 377 0.577 0.113 0.377
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 265 1024 377 218.213 -10.956 17.042
-185.125.190.58 146.131.121.246 2 u 460 1024 277 218.534 -9.820 1.302
+alphyn.canonica 132.163.96.1 2 u 648 1024 357 148.709 -5.726 0.752
-185.125.190.56 99.220.8.133 2 u 822 1024 377 218.171 -10.598 1.379
Thu May 7 17:04:43 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3564GB)
200GB available in /atlas/red...OK (7326GB)
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 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 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
Thu May 7 17:04:43 -04 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 May 7 17:04:43 -04 2026 [elapsed=4 sec] Disabling mount tracking.
Thu May 7 17:04:43 -04 2026 [elapsed=4 sec] SERVICES2
Thu May 7 17:04:43 -04 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu May 7 17:04:48 -04 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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.5e+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 7 17:07:38 -04 2026 [elapsed=179 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: 109.84 -27.58, az/alt=324.52 +86.48 idle(e) IDLE
Thu May 7 17:08:45 -04 2026 [elapsed=246 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu May 7 17:09:10 -04 2026 [elapsed=271 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=4082.6 IDLE
Thu May 7 17:09:10 -04 2026 [elapsed=271 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (-0 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.7C)
Checking CCD plane: Z0=-193.00 DZDX=+466.00 DZDY=-417.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu May 7 17:09:10 -04 2026 [elapsed=271 sec] WEATHER
status weather: C 19.2C 25% 18/21kph@258 DP21.1C/2C/d IDLE
...OK
Thu May 7 17:09:11 -04 2026 [elapsed=272 sec] MET
status...OK
met: c=N o=Y Ro2d Co7h Wo2d Ho2d To2d Do2d IDLE
Thu May 7 17:09:11 -04 2026 [elapsed=272 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu May 7 17:09:11 -04 2026 [elapsed=272 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 138.52 -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 6 0.1%
A 0.051s 116 1.3%
A 0.081s 388 4.2%
A 0.111s 740 8.1%
A 0.141s 1217 13.3%
A 0.172s 1794 19.6%
A 0.202s 2492 27.2%
A 0.232s 3294 36.0%
A 0.263s 4192 45.8%
A 0.293s 5136 56.1%
A 0.323s 6010 65.7%
A 0.354s 6805 74.3%
A 0.385s 7455 81.4%
A 0.415s 8043 87.9%
A 0.446s 8480 92.6%
A 0.476s 8812 96.3%
A 0.506s 9039 98.7%
A 0.537s 9143 99.9%
A 0.567s 9156 100.0%
B 0.020s 3 0.0%
B 0.051s 95 1.0%
B 0.081s 384 4.2%
B 0.111s 748 8.2%
B 0.141s 1208 13.2%
B 0.172s 1802 19.7%
B 0.202s 2494 27.2%
B 0.232s 3281 35.8%
B 0.262s 4200 45.9%
B 0.293s 5113 55.9%
B 0.323s 6023 65.8%
B 0.353s 6803 74.3%
B 0.383s 7431 81.2%
B 0.414s 8026 87.7%
B 0.444s 8470 92.5%
B 0.474s 8801 96.1%
B 0.505s 9037 98.7%
B 0.535s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9055 98.9%
A 0.081s 8769 95.8%
A 0.111s 8427 92.1%
A 0.142s 7941 86.7%
A 0.172s 7381 80.6%
A 0.202s 6664 72.8%
A 0.233s 5867 64.1%
A 0.263s 4953 54.1%
A 0.293s 4023 43.9%
A 0.324s 3139 34.3%
A 0.354s 2352 25.7%
A 0.384s 1694 18.5%
A 0.415s 1125 12.3%
A 0.445s 689 7.5%
A 0.475s 348 3.8%
A 0.505s 123 1.3%
A 0.536s 10 0.1%
A 0.566s -3 0.0%
B 0.020s 9149 99.9%
B 0.050s 9046 98.8%
B 0.081s 8771 95.8%
B 0.111s 8418 92.0%
B 0.141s 7960 87.0%
B 0.171s 7377 80.6%
B 0.202s 6711 73.3%
B 0.232s 5926 64.7%
B 0.262s 5021 54.9%
B 0.292s 4065 44.4%
B 0.323s 3195 34.9%
B 0.353s 2397 26.2%
B 0.383s 1736 19.0%
B 0.414s 1168 12.8%
B 0.444s 685 7.5%
B 0.475s 359 3.9%
B 0.505s 126 1.4%
B 0.535s 7 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 0.567 seconds.
Shutter B opened to 99.9 percent in 0.535 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= 228kB time=00:00:07.29 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=c[4] foc=9872 IDLE
Thu May 7 17:09:47 -04 2026 [elapsed=308 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=4082.6 IDLE
taking preflight exposures:
acam...OK
acam image:
158M May 7 17:10 /atlas/obs/04a/61168/04a61168e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu May 7 17:10:10 -04 2026 [elapsed=331 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 May 7 17:10:10 -04 2026 [elapsed=331 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61167.88206536|info|galildriver|using focus model: foc=9830+(3.50)*18.5+(-0.35)*60.2=9873.7
61167.88207004|info|galildriver|c 4 IN | cass: 9137314 45.69 mm b=23 move=NO | arm: 406932 473.74 mm b=03 move=OK | foc: 53276314 9873 um b=0f [cmd]
bestfocus for c...OK
Thu May 7 17:10:11 -04 2026 [elapsed=332 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu May 7 17:10:45 -04 2026 [elapsed=366 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 7 17:10:46 -04 2026 [elapsed=367 sec] Happy observing!
Thu May 7 17:10:46 -04 2026 [elapsed=367 sec] Preflight took 367 seconds to complete.
Thu May 7 17:10:46 -04 2026 [elapsed=367 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 387 4.2% A 0.111s 736 8.0% A 0.141s 1196 13.1% A 0.172s 1783 19.5% A 0.202s 2466 26.9% A 0.232s 3265 35.7% A 0.262s 4174 45.6% A 0.293s 5104 55.8% A 0.323s 5997 65.5% A 0.353s 6776 74.0% A 0.383s 7433 81.2% A 0.414s 8006 87.5% A 0.444s 8457 92.4% A 0.474s 8792 96.0% A 0.504s 9027 98.6% A 0.535s 9137 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 110 1.2% B 0.081s 380 4.2% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1774 19.4% B 0.202s 2468 27.0% B 0.232s 3268 35.7% B 0.262s 4167 45.5% B 0.292s 5102 55.7% B 0.323s 5988 65.4% B 0.353s 6772 74.0% B 0.383s 7439 81.3% B 0.413s 8001 87.4% B 0.444s 8457 92.4% B 0.474s 8794 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 9152 100.0% A 0.051s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.172s 7380 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.323s 3165 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1148 12.5% A 0.444s 694 7.6% A 0.474s 358 3.9% A 0.504s 126 1.4% A 0.534s 14 0.2% A 0.564s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9018 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.172s 7378 80.6% B 0.202s 6689 73.1% B 0.232s 5891 64.4% B 0.262s 4979 54.4% B 0.292s 4081 44.6% B 0.323s 3191 34.9% B 0.353s 2392 26.1% B 0.383s 1706 18.6% B 0.413s 1160 12.7% B 0.444s 713 7.8% B 0.474s 364 4.0% B 0.504s 138 1.5% 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