CHL Preflight Night 61068
Executing preflight for 61068 at Tue Jan 27 19:47:09 -03 2026.
Log can be found in /atlas/obs/04/61068/preflight.dat.
Setting donefile '/atlas/obs/04/61068/preflight_complete.20260127224710.22499' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260127224710.22499.
Tue Jan 27 19:47:10 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Jan 27 19:47:10 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [96a3ca60-aa21-470a-8a79-19bac0ba961f;1800]
Tue Jan 27 19:47:10 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Tue Jan 27 19:47:10 -03 2026 [elapsed=0 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Tue Jan 27 19:47:10 -03 2026 [elapsed=0 sec] auxcam is disabled.
Tue Jan 27 19:47:10 -03 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Tue Jan 27 19:47:10 -03 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1769554022
OK
Tue Jan 27 19:47:10 -03 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Tue Jan 27 19:47:10 -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
Tue Jan 27 19:47:12 -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
Tue Jan 27 19:47:12 -03 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Tue Jan 27 19:47:12 -03 2026 [elapsed=2 sec] CLOCKS
admin: Tue Jan 27 22:47:12 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 87 1024 377 0.339 -0.532 0.687
*10.0.11.4 .GPS. 1 u 441 1024 377 0.553 -0.309 0.612
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+185.125.190.57 194.121.207.249 2 u 1072 1024 377 206.520 -0.036 1.797
+185.125.190.58 183.160.133.132 2 u 157 1024 377 206.969 -0.306 1.026
-alphyn.canonica 132.163.96.1 2 u 599 1024 377 156.349 -0.754 2.226
-185.125.190.56 194.121.207.249 2 u 360 1024 377 209.922 -1.297 1.436
Tue Jan 27 19:47:13 -03 2026 [elapsed=3 sec] DISKS
200GB available in /atlas/obs...OK (5445GB)
200GB available in /atlas/red...OK (9375GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.1T 5.2T 50% /
admin:/dev/loop1 105M 105M 0 100% /snap/core/17247
admin:/dev/loop2 105M 105M 0 100% /snap/core/17272
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 20G 36G 36% /
archon:/dev/loop0 105M 105M 0 100% /snap/core/17247
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
archon:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc1:/dev/md0p1 15T 4.8T 9.0T 35% /
proc1:/dev/loop0 105M 105M 0 100% /snap/core/17247
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/md0p1 15T 433G 13T 4% /
proc2:/dev/loop0 105M 105M 0 100% /snap/core/17247
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/md0p1 15T 900G 13T 7% /
proc3:/dev/loop1 105M 105M 0 100% /snap/core/17247
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/md0p1 15T 690G 13T 6% /
proc4:/dev/loop1 105M 105M 0 100% /snap/core/17247
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
Tue Jan 27 19:47:13 -03 2026 [elapsed=3 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
Tue Jan 27 19:47:14 -03 2026 [elapsed=4 sec] Disabling mount tracking.
Tue Jan 27 19:47:14 -03 2026 [elapsed=4 sec] Closing dome.
Tue Jan 27 19:51:54 -03 2026 [elapsed=284 sec] SERVICES2
Tue Jan 27 19:51:54 -03 2026 [elapsed=284 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Jan 27 19:51:58 -03 2026 [elapsed=288 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=1.54e+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/OPEN (0%) IDLE
Tue Jan 27 19:54:46 -03 2026 [elapsed=456 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: 38.14 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Tue Jan 27 19:55:53 -03 2026 [elapsed=523 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Jan 27 19:56:18 -03 2026 [elapsed=548 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.3 IDLE
Tue Jan 27 19:56:18 -03 2026 [elapsed=548 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.3C)
Checking CCD plane: Z0=-199.00 DZDX=+467.00 DZDY=-409.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Jan 27 19:56:18 -03 2026 [elapsed=548 sec] WEATHER
status weather: C 25.8C 40% 6/14kph@277 DP12.8C/-72C/d IDLE
...OK
Tue Jan 27 19:56:18 -03 2026 [elapsed=548 sec] MET
status...OK
met: c=N o=Y Ro11h Co19h Wo41d Ho41d To41d Do1d IDLE
Tue Jan 27 19:56:18 -03 2026 [elapsed=548 sec] SENTRY
status...OK
sentry: close=NO open=YES drop=YES IDLE
Tue Jan 27 19:56:18 -03 2026 [elapsed=548 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 66.81 -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 6 0.1%
A 0.051s 122 1.3%
A 0.081s 399 4.4%
A 0.111s 743 8.1%
A 0.142s 1219 13.3%
A 0.172s 1797 19.6%
A 0.203s 2517 27.5%
A 0.233s 3318 36.2%
A 0.264s 4222 46.1%
A 0.294s 5167 56.4%
A 0.325s 6044 66.0%
A 0.355s 6849 74.8%
A 0.385s 7488 81.8%
A 0.416s 8059 88.0%
A 0.446s 8492 92.8%
A 0.476s 8822 96.4%
A 0.506s 9046 98.8%
A 0.536s 9145 99.9%
B 0.020s 1 0.0%
B 0.051s 87 1.0%
B 0.081s 378 4.1%
B 0.111s 736 8.0%
B 0.142s 1190 13.0%
B 0.172s 1803 19.7%
B 0.202s 2492 27.2%
B 0.233s 3280 35.8%
B 0.263s 4202 45.9%
B 0.293s 5142 56.2%
B 0.324s 6022 65.8%
B 0.354s 6802 74.3%
B 0.384s 7449 81.4%
B 0.415s 8026 87.7%
B 0.445s 8472 92.5%
B 0.475s 8800 96.1%
B 0.506s 9037 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9047 98.8%
A 0.081s 8760 95.7%
A 0.111s 8414 91.9%
A 0.142s 7941 86.7%
A 0.172s 7358 80.4%
A 0.203s 6667 72.8%
A 0.233s 5869 64.1%
A 0.263s 4947 54.0%
A 0.293s 4026 44.0%
A 0.324s 3138 34.3%
A 0.354s 2356 25.7%
A 0.384s 1695 18.5%
A 0.414s 1123 12.3%
A 0.445s 691 7.5%
A 0.475s 348 3.8%
A 0.506s 118 1.3%
A 0.536s 8 0.1%
B 0.020s 9148 99.9%
B 0.050s 9044 98.8%
B 0.081s 8780 95.9%
B 0.111s 8430 92.1%
B 0.142s 7976 87.1%
B 0.172s 7396 80.8%
B 0.202s 6685 73.0%
B 0.233s 5897 64.4%
B 0.263s 4989 54.5%
B 0.294s 4032 44.0%
B 0.324s 3167 34.6%
B 0.354s 2374 25.9%
B 0.384s 1717 18.8%
B 0.415s 1152 12.6%
B 0.445s 687 7.5%
B 0.476s 360 3.9%
B 0.506s 128 1.4%
B 0.536s 6 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 99.9 percent in 0.536 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=1.14e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[3] foc=9893 IDLE
Tue Jan 27 19:56:52 -03 2026 [elapsed=582 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.3 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Jan 27 19:57 /atlas/obs/04a/61068/04a61068e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Jan 27 19:57:15 -03 2026 [elapsed=605 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (59 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Jan 27 19:57:15 -03 2026 [elapsed=605 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61067.95643145|info|galildriver|using focus model: foc=9830+(3.50)*24.3+(-0.35)*60.2=9894.0
61067.95643613|info|galildriver|o 3 IN | cass: 6102496 30.51 mm b=23 move=NO | arm: 406979 473.79 mm b=03 move=OK | foc: 53272249 9893 um b=0f [cmd]
bestfocus for o...OK
Tue Jan 27 19:57:17 -03 2026 [elapsed=607 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Jan 27 19:57:50 -03 2026 [elapsed=640 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.
Tue Jan 27 19:57:51 -03 2026 [elapsed=641 sec] Happy observing!
Tue Jan 27 19:57:51 -03 2026 [elapsed=641 sec] Preflight took 641 seconds to complete.
Tue Jan 27 19:57:51 -03 2026 [elapsed=641 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 116 1.3% A 0.081s 383 4.2% A 0.111s 731 8.0% A 0.141s 1198 13.1% A 0.171s 1780 19.4% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5107 55.8% A 0.322s 5990 65.4% A 0.353s 6757 73.8% A 0.383s 7432 81.2% A 0.413s 7992 87.3% A 0.443s 8445 92.3% A 0.473s 8778 95.9% A 0.504s 9023 98.6% A 0.534s 9137 99.8% A 0.564s 9152 100.0% B 0.020s 2 0.0% B 0.050s 105 1.1% B 0.081s 371 4.1% B 0.111s 715 7.8% B 0.141s 1186 13.0% B 0.171s 1753 19.2% B 0.201s 2443 26.7% B 0.232s 3240 35.4% B 0.262s 4137 45.2% B 0.292s 5074 55.4% B 0.322s 5961 65.1% B 0.352s 6748 73.7% B 0.383s 7418 81.0% B 0.413s 7985 87.2% B 0.443s 8443 92.2% B 0.473s 8785 96.0% B 0.503s 9012 98.4% B 0.534s 9134 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9154 100.0% A 0.050s 9051 98.9% A 0.081s 8781 95.9% A 0.111s 8428 92.1% A 0.141s 7964 87.0% A 0.171s 7384 80.7% A 0.202s 6692 73.1% A 0.232s 5902 64.5% A 0.262s 4980 54.4% A 0.293s 4043 44.2% A 0.323s 3171 34.6% A 0.353s 2380 26.0% A 0.383s 1715 18.7% A 0.413s 1146 12.5% A 0.444s 691 7.5% A 0.474s 360 3.9% A 0.504s 124 1.4% A 0.534s 14 0.2% A 0.564s 3 0.0% B 0.020s 9145 99.9% B 0.050s 9016 98.5% B 0.081s 8772 95.8% B 0.111s 8421 92.0% B 0.141s 7951 86.9% B 0.171s 7397 80.8% B 0.201s 6711 73.3% B 0.231s 5921 64.7% B 0.262s 5013 54.8% B 0.292s 4082 44.6% B 0.322s 3190 34.8% B 0.352s 2415 26.4% B 0.382s 1726 18.9% B 0.413s 1164 12.7% B 0.443s 713 7.8% B 0.473s 365 4.0% B 0.503s 139 1.5% B 0.534s 16 0.2% B 0.564s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R