CHL Preflight Night 61116
Executing preflight for 61116 at Mon Mar 16 19:01:03 -03 2026.
Log can be found in /atlas/obs/04/61116/preflight.dat.
Setting donefile '/atlas/obs/04/61116/preflight_complete.20260316220103.24283' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260316220103.24283.
Mon Mar 16 19:01:03 -03 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Mar 16 19:01:03 -03 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [8d67b59b-7b83-463e-bb1f-dfd188799e4c;1800]
Mon Mar 16 19:01:04 -03 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Mon Mar 16 19:01:04 -03 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Mon Mar 16 19:01:05 -03 2026 [elapsed=1 sec] auxcam is disabled.
Mon Mar 16 19:01:05 -03 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Mar 16 19:01:05 -03 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1773698464
OK
Mon Mar 16 19:01:05 -03 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Mon Mar 16 19:01:05 -03 2026 [elapsed=2 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
Mon Mar 16 19:01:06 -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
Mon Mar 16 19:01:07 -03 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Mon Mar 16 19:01:07 -03 2026 [elapsed=4 sec] CLOCKS
admin: Mon Mar 16 22:01:07 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 204 512 377 0.292 -0.372 0.183
*10.0.11.4 .GPS. 1 u 291 512 377 0.538 -0.282 0.282
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 194.121.207.249 2 u 239 512 377 210.083 -2.512 6.098
+185.125.190.58 145.238.80.80 2 u 285 512 377 212.332 -1.383 3.971
-alphyn.canonica 132.163.96.1 2 u 306 512 377 157.805 -2.186 1.642
-185.125.190.56 79.243.60.50 2 u 518 1024 377 225.715 -8.864 1.403
Mon Mar 16 19:01:08 -03 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (4745GB)
200GB available in /atlas/red...OK (8376GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.7T 4.6T 56% /
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 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
archon:/dev/loop2 106M 106M 0 100% /snap/core/17284
proc1:/dev/md0p1 15T 5.7T 8.0T 42% /
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 630G 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/loop1 105M 105M 0 100% /snap/core/17247
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
Mon Mar 16 19:01:08 -03 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
Mon Mar 16 19:01:09 -03 2026 [elapsed=6 sec] Disabling mount tracking.
Mon Mar 16 19:01:09 -03 2026 [elapsed=6 sec] SERVICES2
Mon Mar 16 19:01:09 -03 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Mar 16 19:01:13 -03 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
Mon Mar 16 19:04:03 -03 2026 [elapsed=180 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: 72.73 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Mon Mar 16 19:05:08 -03 2026 [elapsed=245 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Mar 16 19:05:33 -03 2026 [elapsed=270 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=895/0 spi=38.5 IDLE
Mon Mar 16 19:05:33 -03 2026 [elapsed=270 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 (-53.6C)
Checking CCD plane: Z0=-198.00 DZDX=+461.00 DZDY=-415.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=895 IDLE
Mon Mar 16 19:05:33 -03 2026 [elapsed=270 sec] WEATHER
status weather: C 25.3C 24% 10/14kph@296 DP23.0C/40C/d IDLE
...OK
Mon Mar 16 19:05:34 -03 2026 [elapsed=271 sec] MET
status...OK
met: c=N o=Y Ro8d Co7d Wo38d Ho38d To38d Do38d IDLE
Mon Mar 16 19:05:34 -03 2026 [elapsed=271 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Mar 16 19:05:34 -03 2026 [elapsed=271 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 101.40 -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 107 1.2%
A 0.081s 388 4.2%
A 0.111s 742 8.1%
A 0.141s 1205 13.2%
A 0.172s 1796 19.6%
A 0.203s 2493 27.2%
A 0.233s 3290 35.9%
A 0.263s 4193 45.8%
A 0.294s 5137 56.1%
A 0.324s 6040 66.0%
A 0.354s 6829 74.6%
A 0.385s 7471 81.6%
A 0.415s 8041 87.8%
A 0.446s 8480 92.6%
A 0.476s 8812 96.3%
A 0.506s 9037 98.7%
A 0.536s 9143 99.9%
A 0.567s 9157 100.0%
B 0.020s 2 0.0%
B 0.050s 95 1.0%
B 0.081s 387 4.2%
B 0.111s 748 8.2%
B 0.141s 1206 13.2%
B 0.172s 1803 19.7%
B 0.202s 2494 27.2%
B 0.232s 3281 35.8%
B 0.274s 4544 49.6%
B 0.304s 5460 59.6%
B 0.334s 6317 69.0%
B 0.365s 7042 76.9%
B 0.395s 7663 83.7%
B 0.425s 8202 89.6%
B 0.456s 8598 93.9%
B 0.486s 8896 97.2%
B 0.516s 9090 99.3%
B 0.546s 9158 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.051s 9054 98.9%
A 0.081s 8772 95.8%
A 0.111s 8428 92.1%
A 0.142s 7962 87.0%
A 0.172s 7374 80.6%
A 0.202s 6692 73.1%
A 0.233s 5892 64.4%
A 0.263s 4948 54.1%
A 0.293s 4025 44.0%
A 0.324s 3137 34.3%
A 0.354s 2360 25.8%
A 0.384s 1689 18.5%
A 0.415s 1125 12.3%
A 0.445s 691 7.5%
A 0.475s 347 3.8%
A 0.506s 126 1.4%
A 0.536s 9 0.1%
B 0.020s 9147 99.9%
B 0.050s 9034 98.7%
B 0.081s 8762 95.7%
B 0.111s 8404 91.8%
B 0.142s 7942 86.8%
B 0.172s 7357 80.4%
B 0.203s 6663 72.8%
B 0.233s 5845 63.9%
B 0.263s 4929 53.8%
B 0.294s 3975 43.4%
B 0.324s 3113 34.0%
B 0.354s 2329 25.4%
B 0.385s 1678 18.3%
B 0.415s 1119 12.2%
B 0.445s 660 7.2%
B 0.476s 341 3.7%
B 0.506s 117 1.3%
B 0.536s 3 0.0%
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 100.0 percent in 0.546 seconds.
Shutter A closed to 0.1 percent in 0.536 seconds.
Shutter B closed to 0.0 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.19e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[4] foc=9890 IDLE
Mon Mar 16 19:06:09 -03 2026 [elapsed=306 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=895/0 spi=38.5 IDLE
taking preflight exposures:
acam...OK
acam image:
154M Mar 16 19:06 /atlas/obs/04a/61116/04a61116e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Mar 16 19:06:31 -03 2026 [elapsed=328 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (85 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Mar 16 19:06:31 -03 2026 [elapsed=328 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61115.92120411|info|galildriver|using focus model: foc=9830+(3.50)*23.4+(-0.35)*60.2=9890.8
61115.92120877|info|galildriver|c 4 IN | cass: 9136264 45.68 mm b=23 move=NO | arm: 407051 473.88 mm b=03 move=OK | foc: 53272747 9890 um b=0f [cmd]
bestfocus for c...OK
Mon Mar 16 19:06:33 -03 2026 [elapsed=330 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Mar 16 19:07:05 -03 2026 [elapsed=362 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.
Mon Mar 16 19:07:07 -03 2026 [elapsed=364 sec] Happy observing!
Mon Mar 16 19:07:07 -03 2026 [elapsed=364 sec] Preflight took 364 seconds to complete.
Mon Mar 16 19:07:07 -03 2026 [elapsed=364 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