CHL Preflight Night 61120
Executing preflight for 61120 at Fri Mar 20 18:56:11 -03 2026.
Log can be found in /atlas/obs/04/61120/preflight.dat.
Setting donefile '/atlas/obs/04/61120/preflight_complete.20260320215611.8997' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260320215611.8997.
Fri Mar 20 18:56:11 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Mar 20 18:56:11 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [e7df2ff0-4590-4cfa-b0a8-fbfcacd3813d;1800]
Fri Mar 20 18:56:11 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Fri Mar 20 18:56:12 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Fri Mar 20 18:56:12 -03 2026 [elapsed=1 sec] auxcam is disabled.
Fri Mar 20 18:56:12 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Mar 20 18:56:12 -03 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1774043767
OK
Fri Mar 20 18:56:12 -03 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Mar 20 18:56:12 -03 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
Fri Mar 20 18:56:14 -03 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
Fri Mar 20 18:56:14 -03 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Mar 20 18:56:14 -03 2026 [elapsed=3 sec] CLOCKS
admin: Fri Mar 20 21:56:14 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 233 1024 377 0.282 -0.163 0.501
+10.0.11.4 .GPS. 1 u 778 1024 377 0.563 -0.007 0.553
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 29.88.99.4 2 u 293 1024 377 221.471 -8.356 1.620
-185.125.190.58 145.238.80.80 2 u 864 1024 377 222.216 -6.979 4.945
+alphyn.canonica 132.163.96.1 2 u 985 1024 377 157.097 -1.972 1.234
-185.125.190.56 194.121.207.249 2 u 1044 1024 377 222.207 -7.586 1.028
Fri Mar 20 18:56:18 -03 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (4693GB)
200GB available in /atlas/red...OK (8155GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.8T 4.5T 57% /
admin:/dev/loop2 105M 105M 0 100% /snap/core/17272
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 20G 35G 37% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/loop1 105M 105M 0 100% /snap/core/17272
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 5.9T 7.8T 44% /
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/md0p1 15T 639G 13T 5% /
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 902G 13T 7% /
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 691G 13T 6% /
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
Fri Mar 20 18:56:18 -03 2026 [elapsed=7 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
Fri Mar 20 18:56:18 -03 2026 [elapsed=7 sec] Disabling mount tracking.
Fri Mar 20 18:56:18 -03 2026 [elapsed=7 sec] SERVICES2
Fri Mar 20 18:56:18 -03 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Mar 20 18:56:22 -03 2026 [elapsed=11 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=1.54e+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
Fri Mar 20 18:59:14 -03 2026 [elapsed=183 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: 75.46 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Fri Mar 20 19:00:19 -03 2026 [elapsed=248 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Mar 20 19:00:44 -03 2026 [elapsed=273 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Fri Mar 20 19:00:44 -03 2026 [elapsed=273 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (4 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.3C)
Checking CCD plane: Z0=-194.00 DZDX=+466.00 DZDY=-415.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri Mar 20 19:00:44 -03 2026 [elapsed=273 sec] WEATHER
status weather: C 17.9C 51% 10/16kph@297 DP8.1C/-97C/d IDLE
...OK
Fri Mar 20 19:00:44 -03 2026 [elapsed=273 sec] MET
status...OK
met: c=N o=N Ro12d Cx0 Wo42d Ho42d To42d Do42d wait C IDLE
Fri Mar 20 19:00:44 -03 2026 [elapsed=273 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Mar 20 19:00:44 -03 2026 [elapsed=273 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 104.14 -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 8 0.1%
A 0.051s 105 1.1%
A 0.081s 384 4.2%
A 0.111s 730 8.0%
A 0.141s 1222 13.3%
A 0.172s 1797 19.6%
A 0.202s 2494 27.2%
A 0.232s 3287 35.9%
A 0.263s 4192 45.8%
A 0.293s 5137 56.1%
A 0.323s 6015 65.7%
A 0.354s 6806 74.4%
A 0.384s 7450 81.4%
A 0.414s 8024 87.7%
A 0.445s 8469 92.5%
A 0.475s 8804 96.2%
A 0.506s 9036 98.7%
A 0.536s 9144 99.9%
A 0.566s 9159 100.0%
B 0.020s 1 0.0%
B 0.051s 89 1.0%
B 0.081s 374 4.1%
B 0.111s 736 8.0%
B 0.142s 1191 13.0%
B 0.172s 1780 19.4%
B 0.202s 2494 27.2%
B 0.233s 3279 35.8%
B 0.263s 4200 45.9%
B 0.293s 5143 56.2%
B 0.324s 6021 65.8%
B 0.355s 6803 74.3%
B 0.385s 7470 81.6%
B 0.415s 8043 87.9%
B 0.446s 8484 92.7%
B 0.476s 8810 96.2%
B 0.506s 9043 98.8%
B 0.537s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9053 98.9%
A 0.081s 8782 95.9%
A 0.111s 8442 92.2%
A 0.141s 7981 87.2%
A 0.172s 7374 80.6%
A 0.202s 6694 73.1%
A 0.232s 5896 64.4%
A 0.263s 4976 54.4%
A 0.293s 4054 44.3%
A 0.323s 3166 34.6%
A 0.354s 2383 26.0%
A 0.384s 1711 18.7%
A 0.414s 1138 12.4%
A 0.445s 703 7.7%
A 0.475s 355 3.9%
A 0.505s 131 1.4%
A 0.535s 11 0.1%
A 0.566s -5 0.0%
B 0.020s 9148 99.9%
B 0.050s 9036 98.7%
B 0.081s 8771 95.8%
B 0.111s 8418 92.0%
B 0.141s 7944 86.8%
B 0.172s 7358 80.4%
B 0.202s 6663 72.8%
B 0.232s 5871 64.1%
B 0.263s 4959 54.2%
B 0.293s 4008 43.8%
B 0.323s 3140 34.3%
B 0.354s 2350 25.7%
B 0.384s 1699 18.6%
B 0.414s 1135 12.4%
B 0.445s 673 7.4%
B 0.475s 351 3.8%
B 0.505s 121 1.3%
B 0.536s 4 0.0%
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 0.537 seconds.
Shutter A closed to 0.0 percent in 0.566 seconds.
Shutter B closed to 0.0 percent in 0.536 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=c[4] foc=9875 IDLE
Fri Mar 20 19:01:20 -03 2026 [elapsed=309 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
taking preflight exposures:
acam...OK
acam image:
157M Mar 20 19:01 /atlas/obs/04a/61120/04a61120e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Mar 20 19:01:43 -03 2026 [elapsed=332 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (67 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Mar 20 19:01:43 -03 2026 [elapsed=332 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61119.91786568|info|galildriver|using focus model: foc=9830+(3.50)*19.2+(-0.35)*60.2=9876.1
61119.91787035|info|galildriver|c 4 IN | cass: 9137658 45.69 mm b=23 move=NO | arm: 407051 473.88 mm b=03 move=OK | foc: 53275683 9876 um b=0f [cmd]
bestfocus for c...OK
Fri Mar 20 19:01:45 -03 2026 [elapsed=334 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Mar 20 19:02:18 -03 2026 [elapsed=367 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.
Fri Mar 20 19:02:19 -03 2026 [elapsed=368 sec] Happy observing!
Fri Mar 20 19:02:19 -03 2026 [elapsed=368 sec] Preflight took 368 seconds to complete.
Fri Mar 20 19:02:19 -03 2026 [elapsed=368 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 116 1.3% A 0.081s 373 4.1% A 0.111s 718 7.8% A 0.141s 1182 12.9% A 0.171s 1759 19.2% A 0.202s 2441 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.292s 5077 55.5% A 0.322s 5963 65.1% A 0.353s 6756 73.8% A 0.383s 7412 81.0% A 0.413s 7991 87.3% A 0.444s 8446 92.3% A 0.474s 8779 95.9% A 0.504s 9023 98.6% A 0.534s 9137 99.8% A 0.565s 9152 100.0% B 0.020s -1 -0.0% B 0.050s 105 1.1% B 0.081s 378 4.1% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1753 19.2% B 0.202s 2441 26.7% B 0.232s 3240 35.4% B 0.262s 4135 45.2% B 0.292s 5074 55.4% B 0.322s 5959 65.1% B 0.352s 6749 73.7% B 0.383s 7418 81.0% B 0.413s 7986 87.2% B 0.443s 8431 92.1% B 0.473s 8778 95.9% B 0.503s 9012 98.4% B 0.534s 9133 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9155 100.0% A 0.050s 9050 98.9% A 0.081s 8783 95.9% A 0.111s 8430 92.1% A 0.141s 7965 87.0% A 0.171s 7385 80.7% A 0.202s 6694 73.1% A 0.232s 5903 64.5% A 0.262s 4982 54.4% A 0.293s 4045 44.2% A 0.323s 3172 34.7% A 0.353s 2381 26.0% A 0.383s 1714 18.7% A 0.414s 1146 12.5% A 0.444s 692 7.6% A 0.474s 360 3.9% A 0.504s 125 1.4% A 0.535s 15 0.2% A 0.565s 4 0.0% B 0.020s 9144 99.9% B 0.050s 9009 98.4% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.171s 7377 80.6% B 0.202s 6687 73.1% B 0.232s 5892 64.4% B 0.262s 4983 54.4% B 0.292s 4052 44.3% B 0.322s 3161 34.5% B 0.353s 2393 26.1% B 0.383s 1704 18.6% B 0.413s 1147 12.5% B 0.443s 700 7.6% B 0.474s 355 3.9% B 0.504s 133 1.5% B 0.534s 13 0.1% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R