CHL Preflight Night 61167
Executing preflight for 61167 at Wed May 6 17:05:13 -04 2026.
Log can be found in /atlas/obs/04/61167/preflight.dat.
Setting donefile '/atlas/obs/04/61167/preflight_complete.20260506210513.14810' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260506210513.14810.
Wed May 6 17:05:13 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed May 6 17:05:13 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [86772ce5-a60f-415c-9a21-3053dfb1a265;1800]
Wed May 6 17:05:13 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Wed May 6 17:05:14 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Wed May 6 17:05:14 -04 2026 [elapsed=1 sec] auxcam is disabled.
Wed May 6 17:05:14 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed May 6 17:05:14 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1778101505
OK
Wed May 6 17:05:14 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed May 6 17:05:14 -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 May 6 17:05:15 -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 May 6 17:05:16 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed May 6 17:05:16 -04 2026 [elapsed=3 sec] CLOCKS
admin: Wed May 6 21:05:16 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 879 1024 377 0.256 0.145 0.237
+10.0.11.4 .GPS. 1 u 1048 1024 377 0.583 0.281 0.286
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 563 1024 377 217.852 -10.999 0.878
-185.125.190.58 146.131.121.246 2 u 464 1024 377 218.423 -9.149 1.456
+alphyn.canonica 132.163.96.1 2 u 672 1024 377 147.722 -1.003 3.746
-185.125.190.56 99.220.8.133 2 u 847 1024 377 220.496 -11.769 1.057
Wed May 6 17:05:19 -04 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (3469GB)
200GB available in /atlas/red...OK (7068GB)
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 68% /
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 7.0T 6.8T 51% /
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 578G 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 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
Wed May 6 17:05:19 -04 2026 [elapsed=6 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 May 6 17:05:19 -04 2026 [elapsed=6 sec] Disabling mount tracking.
Wed May 6 17:05:19 -04 2026 [elapsed=6 sec] SERVICES2
Wed May 6 17:05:19 -04 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed May 6 17:05:23 -04 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= 912kB time=00:00:29.18 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
Wed May 6 17:08:18 -04 2026 [elapsed=185 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: 109.02 -27.58, az/alt=324.55 +86.48 idle(e) IDLE
Wed May 6 17:09:23 -04 2026 [elapsed=250 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed May 6 17:09:48 -04 2026 [elapsed=275 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=1/0 spi=39.0 IDLE
Wed May 6 17:09:48 -04 2026 [elapsed=275 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (1 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.4C)
Checking CCD plane: Z0=-194.00 DZDX=+472.00 DZDY=-414.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=1 IDLE
Wed May 6 17:09:48 -04 2026 [elapsed=275 sec] WEATHER
status weather: C+ 17.2C 40% 13/18kph@295 DP10.8C/-112C/d IDLE
...OK
Wed May 6 17:09:48 -04 2026 [elapsed=275 sec] MET
status...OK
met: c=Y o=N Ro1d Cx40 Wo1d Ho1d To1d Do1d wait C IDLE
Wed May 6 17:09:48 -04 2026 [elapsed=275 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed May 6 17:09:48 -04 2026 [elapsed=275 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 137.70 -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 108 1.2%
A 0.081s 389 4.2%
A 0.111s 727 7.9%
A 0.142s 1201 13.1%
A 0.172s 1753 19.2%
A 0.202s 2467 26.9%
A 0.232s 3267 35.7%
A 0.263s 4162 45.5%
A 0.293s 5078 55.5%
A 0.323s 5982 65.3%
A 0.354s 6782 74.1%
A 0.384s 7436 81.2%
A 0.414s 8009 87.5%
A 0.444s 8456 92.4%
A 0.475s 8794 96.1%
A 0.505s 9028 98.6%
A 0.536s 9140 99.8%
A 0.566s 9157 100.0%
B 0.020s 2 0.0%
B 0.050s 97 1.1%
B 0.081s 386 4.2%
B 0.111s 749 8.2%
B 0.141s 1208 13.2%
B 0.172s 1803 19.7%
B 0.202s 2495 27.3%
B 0.232s 3283 35.9%
B 0.263s 4201 45.9%
B 0.293s 5143 56.2%
B 0.323s 6024 65.8%
B 0.353s 6806 74.4%
B 0.384s 7449 81.4%
B 0.414s 8027 87.7%
B 0.445s 8472 92.5%
B 0.475s 8811 96.3%
B 0.505s 9042 98.8%
B 0.536s 9150 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9046 98.8%
A 0.081s 8760 95.7%
A 0.111s 8415 91.9%
A 0.141s 7941 86.7%
A 0.172s 7360 80.4%
A 0.202s 6664 72.8%
A 0.232s 5866 64.1%
A 0.263s 4954 54.1%
A 0.293s 4024 44.0%
A 0.323s 3139 34.3%
A 0.354s 2353 25.7%
A 0.384s 1693 18.5%
A 0.414s 1110 12.1%
A 0.445s 690 7.5%
A 0.475s 338 3.7%
A 0.505s 118 1.3%
A 0.536s 8 0.1%
B 0.020s 9149 99.9%
B 0.051s 9044 98.8%
B 0.081s 8779 95.9%
B 0.111s 8429 92.1%
B 0.141s 7960 87.0%
B 0.172s 7396 80.8%
B 0.202s 6686 73.0%
B 0.233s 5897 64.4%
B 0.263s 4990 54.5%
B 0.293s 4034 44.1%
B 0.324s 3166 34.6%
B 0.354s 2373 25.9%
B 0.384s 1717 18.8%
B 0.415s 1150 12.6%
B 0.445s 685 7.5%
B 0.475s 359 3.9%
B 0.506s 125 1.4%
B 0.536s 3 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 100.0 percent in 0.536 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= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.16e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[4] foc=9878 IDLE
Wed May 6 17:10:25 -04 2026 [elapsed=312 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=1/0 spi=39.0 IDLE
taking preflight exposures:
acam...OK
acam image:
157M May 6 17:10 /atlas/obs/04a/61167/04a61167e0002c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed May 6 17:10:47 -04 2026 [elapsed=334 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (71 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed May 6 17:10:47 -04 2026 [elapsed=334 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61166.88250102|info|galildriver|using focus model: foc=9830+(3.50)*19.1+(-0.35)*60.2=9875.8
61166.88250605|info|galildriver|c 4 IN | cass: 9138814 45.69 mm b=23 move=NO | arm: 406932 473.74 mm b=03 move=OK | foc: 53275227 9878 um b=8f M [focus]
61166.88251620|info|galildriver|c 4 IN | cass: 9138807 45.69 mm b=23 move=NO | arm: 406932 473.74 mm b=03 move=OK | foc: 53275538 9876 um b=0f [cmd]
bestfocus for c...OK
Wed May 6 17:10:50 -04 2026 [elapsed=337 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed May 6 17:11:23 -04 2026 [elapsed=370 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 May 6 17:11:24 -04 2026 [elapsed=371 sec] Happy observing!
Wed May 6 17:11:24 -04 2026 [elapsed=371 sec] Preflight took 371 seconds to complete.
Wed May 6 17:11:24 -04 2026 [elapsed=371 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 2 0.0% A 0.050s 108 1.2% A 0.081s 375 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.172s 1760 19.2% A 0.202s 2442 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.293s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.414s 7988 87.3% A 0.444s 8445 92.3% A 0.474s 8784 96.0% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 119 1.3% B 0.081s 390 4.3% B 0.111s 741 8.1% B 0.141s 1220 13.3% B 0.171s 1794 19.6% B 0.202s 2491 27.2% B 0.232s 3296 36.0% B 0.262s 4197 45.8% B 0.292s 5132 56.1% B 0.323s 6015 65.7% B 0.353s 6796 74.2% B 0.383s 7459 81.5% B 0.414s 8018 87.6% B 0.444s 8468 92.5% B 0.474s 8803 96.2% B 0.504s 9028 98.6% B 0.535s 9141 99.9% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.051s 9043 98.8% A 0.081s 8767 95.8% A 0.111s 8408 91.9% A 0.141s 7942 86.8% A 0.171s 7359 80.4% A 0.202s 6669 72.9% A 0.232s 5866 64.1% A 0.262s 4951 54.1% A 0.292s 4009 43.8% A 0.323s 3166 34.6% A 0.353s 2387 26.1% A 0.383s 1710 18.7% A 0.413s 1148 12.5% A 0.443s 693 7.6% A 0.474s 358 3.9% A 0.504s 125 1.4% A 0.534s 13 0.1% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9008 98.4% B 0.081s 8761 95.7% B 0.111s 8419 92.0% B 0.141s 7935 86.7% B 0.171s 7357 80.4% B 0.202s 6690 73.1% B 0.232s 5892 64.4% B 0.262s 4978 54.4% B 0.292s 4052 44.3% B 0.323s 3164 34.6% B 0.353s 2394 26.2% B 0.383s 1703 18.6% B 0.413s 1145 12.5% B 0.443s 699 7.6% B 0.474s 355 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.564s 1 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R