CHL Preflight Night 61153
Executing preflight for 61153 at Wed Apr 22 20:23:37 -04 2026.
Log can be found in /atlas/obs/04/61153/preflight.dat.
Setting donefile '/atlas/obs/04/61153/preflight_complete.20260423002337.10659' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260423002337.10659.
Wed Apr 22 20:23:37 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Apr 22 20:23:37 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [e34aaf33-3f78-4076-8abb-dc26a9284588;1800]
Wed Apr 22 20:23:37 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Wed Apr 22 20:23:38 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Wed Apr 22 20:23:38 -04 2026 [elapsed=1 sec] auxcam is disabled.
Wed Apr 22 20:23:38 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Apr 22 20:23:38 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1776903811
OK
Wed Apr 22 20:23:38 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Apr 22 20:23:38 -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
Wed Apr 22 20:23:39 -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
Wed Apr 22 20:23:40 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Apr 22 20:23:40 -04 2026 [elapsed=3 sec] CLOCKS
admin: Thu Apr 23 00:23:40 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 967 1024 377 0.343 -2.460 1.108
*10.0.11.4 .GPS. 1 u 327 512 377 0.753 -2.776 1.424
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 418 1024 377 230.955 -14.493 4.133
-185.125.190.58 99.220.8.133 2 u 804 1024 377 231.930 -13.611 1.276
+alphyn.canonica 132.163.96.1 2 u 255 512 377 147.623 -6.717 3.467
-185.125.190.56 146.131.121.246 2 u 574 1024 377 224.587 -10.133 1.501
Wed Apr 22 20:23:41 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3814GB)
200GB available in /atlas/red...OK (7463GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.6T 3.7T 65% /
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/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
archon:/dev/loop2 106M 106M 0 100% /snap/core/17292
proc1:/dev/md0p1 15T 6.6T 7.2T 48% /
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 654G 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 902G 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 692G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Wed Apr 22 20:23:42 -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
Wed Apr 22 20:23:42 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Wed Apr 22 20:23:42 -04 2026 [elapsed=5 sec] SERVICES2
Wed Apr 22 20:23:42 -04 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Apr 22 20:23:46 -04 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= 912kB time=00:00:29.18 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
Wed Apr 22 20:27:05 -04 2026 [elapsed=208 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: 145.05 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Wed Apr 22 20:28:10 -04 2026 [elapsed=273 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Apr 22 20:28:35 -04 2026 [elapsed=298 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=984/0 spi=38.8 IDLE
Wed Apr 22 20:28:35 -04 2026 [elapsed=298 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.2C)
Checking CCD plane: Z0=-195.00 DZDX=+459.00 DZDY=-421.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=984 IDLE
Wed Apr 22 20:28:35 -04 2026 [elapsed=298 sec] WEATHER
status weather: clear 16.4C 38% 2/4kph@23 DP-999.0C/0C/d IDLE
...OK
Wed Apr 22 20:28:35 -04 2026 [elapsed=298 sec] MET
status...OK
met: c=N o=Y Ro8d Co2d Wo17d Ho17d To17d Do17d IDLE
Wed Apr 22 20:28:35 -04 2026 [elapsed=298 sec] SENTRY
status...OK
sentry: close=NO open=YES drop=YES IDLE
Wed Apr 22 20:28:35 -04 2026 [elapsed=298 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 173.73 -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 95 1.0%
A 0.081s 371 4.1%
A 0.111s 729 8.0%
A 0.141s 1207 13.2%
A 0.172s 1778 19.4%
A 0.202s 2465 26.9%
A 0.233s 3251 35.5%
A 0.263s 4170 45.6%
A 0.293s 5116 55.9%
A 0.324s 5982 65.3%
A 0.354s 6780 74.1%
A 0.385s 7450 81.4%
A 0.415s 8027 87.7%
A 0.445s 8471 92.5%
A 0.476s 8806 96.2%
A 0.506s 9037 98.7%
A 0.536s 9142 99.9%
A 0.566s 9158 100.0%
B 0.020s 1 0.0%
B 0.051s 83 0.9%
B 0.081s 363 4.0%
B 0.111s 724 7.9%
B 0.142s 1192 13.0%
B 0.172s 1780 19.4%
B 0.202s 2448 26.7%
B 0.233s 3255 35.6%
B 0.263s 4170 45.6%
B 0.293s 5112 55.8%
B 0.324s 5997 65.5%
B 0.354s 6782 74.1%
B 0.384s 7429 81.2%
B 0.414s 8012 87.5%
B 0.445s 8460 92.4%
B 0.475s 8792 96.0%
B 0.505s 9033 98.7%
B 0.536s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9064 99.0%
A 0.081s 8782 95.9%
A 0.111s 8436 92.2%
A 0.142s 7983 87.2%
A 0.172s 7368 80.5%
A 0.203s 6692 73.1%
A 0.233s 5892 64.4%
A 0.263s 4981 54.4%
A 0.294s 4050 44.2%
A 0.324s 3140 34.3%
A 0.355s 2364 25.8%
A 0.385s 1684 18.4%
A 0.415s 1125 12.3%
A 0.445s 689 7.5%
A 0.476s 346 3.8%
A 0.506s 128 1.4%
A 0.536s 5 0.1%
B 0.020s 9149 99.9%
B 0.051s 9041 98.8%
B 0.081s 8763 95.7%
B 0.111s 8405 91.8%
B 0.142s 7942 86.8%
B 0.172s 7359 80.4%
B 0.202s 6664 72.8%
B 0.233s 5870 64.1%
B 0.263s 4961 54.2%
B 0.293s 4009 43.8%
B 0.323s 3138 34.3%
B 0.354s 2351 25.7%
B 0.384s 1699 18.6%
B 0.414s 1135 12.4%
B 0.445s 673 7.4%
B 0.475s 350 3.8%
B 0.506s 120 1.3%
B 0.536s 5 0.1%
A 0 0.0mm 15 N F R | B -3 -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 0.1 percent in 0.536 seconds.
Shutter B closed to 0.1 percent in 0.536 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=9879 IDLE
Wed Apr 22 20:29:13 -04 2026 [elapsed=336 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=984/0 spi=38.8 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Apr 22 20:29 /atlas/obs/04a/61153/04a61153e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Apr 22 20:29:35 -04 2026 [elapsed=358 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (29 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Apr 22 20:29:35 -04 2026 [elapsed=358 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61153.02055885|info|galildriver|using focus model: foc=9830+(3.50)*19.3+(-0.35)*60.3=9876.5
61153.02056386|info|galildriver|o 3 IN | cass: 6107457 30.54 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53275029 9879 um b=8f M [focus]
61153.02057402|info|galildriver|o 3 IN | cass: 6107456 30.54 mm b=23 move=NO | arm: 407123 473.96 mm b=03 move=OK | foc: 53275249 9878 um b=0f [cmd]
bestfocus for o...OK
Wed Apr 22 20:29:38 -04 2026 [elapsed=361 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Apr 22 20:30:12 -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.
Wed Apr 22 20:30:13 -04 2026 [elapsed=396 sec] Happy observing!
Wed Apr 22 20:30:13 -04 2026 [elapsed=396 sec] Preflight took 396 seconds to complete.
Wed Apr 22 20:30:13 -04 2026 [elapsed=396 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 114 1.2% A 0.081s 386 4.2% A 0.111s 736 8.0% A 0.141s 1196 13.1% A 0.172s 1784 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4173 45.6% A 0.293s 5104 55.8% A 0.323s 5997 65.5% A 0.353s 6776 74.0% A 0.383s 7414 81.0% A 0.414s 7988 87.3% A 0.444s 8444 92.2% A 0.474s 8781 95.9% A 0.504s 9022 98.6% A 0.534s 9136 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 109 1.2% B 0.081s 381 4.2% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1775 19.4% B 0.202s 2444 26.7% B 0.232s 3240 35.4% B 0.262s 4136 45.2% B 0.292s 5074 55.4% B 0.322s 5961 65.1% B 0.353s 6751 73.7% B 0.383s 7417 81.0% B 0.413s 7985 87.2% B 0.443s 8442 92.2% B 0.474s 8785 96.0% B 0.504s 9017 98.5% B 0.534s 9136 99.8% B 0.564s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9045 98.8% A 0.081s 8767 95.8% A 0.111s 8407 91.8% A 0.141s 7941 86.7% A 0.171s 7380 80.6% A 0.201s 6691 73.1% A 0.231s 5893 64.4% A 0.262s 4984 54.4% A 0.292s 4038 44.1% A 0.322s 3165 34.6% A 0.352s 2386 26.1% A 0.383s 1710 18.7% A 0.413s 1148 12.5% A 0.443s 695 7.6% A 0.474s 357 3.9% A 0.504s 126 1.4% A 0.534s 14 0.2% A 0.564s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9018 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7950 86.8% B 0.171s 7376 80.6% B 0.201s 6688 73.1% B 0.232s 5891 64.4% B 0.262s 4980 54.4% B 0.292s 4051 44.3% B 0.322s 3163 34.6% B 0.352s 2391 26.1% B 0.383s 1725 18.8% B 0.413s 1164 12.7% B 0.443s 714 7.8% B 0.473s 365 4.0% B 0.504s 139 1.5% B 0.534s 15 0.2% B 0.564s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R