STH Recent Preflight: 61345
Executing preflight for 61345 at Sat Oct 31 18:04:09 SAST 2026.
Log can be found in /atlas/obs/03/61345/preflight.dat.
Setting donefile '/atlas/obs/03/61345/preflight_complete.20261031160409.5681' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261031160409.5681.
Sat Oct 31 18:04:09 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Oct 31 18:04:09 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [4958431b-3013-489a-aa4d-bc869bc7e0ba;1800]
Sat Oct 31 18:04:09 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat Oct 31 18:04:10 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat Oct 31 18:04:10 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat Oct 31 18:04:10 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Oct 31 18:04:10 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1793462649
OK
Sat Oct 31 18:04:10 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Oct 31 18:04:10 SAST 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
Sat Oct 31 18:04:12 SAST 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-03a...OK
proc1 prochain-redpost-03x...OK
Sat Oct 31 18:04:12 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Oct 31 18:04:12 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sat Oct 31 16:04:12 UTC 2026
metbox: OK
proc1: OK
proc2: OK
proc3: OK
proc4: OK
archon: OK
NTP:
remote refid st t when poll reach delay offset jitter
==============================================================================
+192.168.4.5 .GPS. 1 u 422 1024 377 1.016 0.100 0.126
*metbox2.sth.atl .PPS. 1 u 307 1024 377 0.268 0.078 0.147
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-146.64.24.58 155.232.19.8 2 u 872 1024 377 23.313 0.766 0.596
+ntp.as3741.net 210.182.58.253 2 u 708 1024 377 23.015 0.074 1.116
+ntp2.as3741.net 146.64.58.41 2 u 878 1024 377 7.188 0.099 0.731
+ntp2.inx.net.za 210.182.58.253 2 u 265 1024 377 7.360 0.068 0.071
+ntp2.nog.net.za 80.72.67.48 3 u 575 1024 377 7.534 0.159 0.132
-139.84.231.68 ( 196.21.187.2 2 u 987 1024 377 23.029 -0.110 0.253
-ntp7.inx.net.za 183.3.52.101 2 u 709 1024 377 16.577 0.340 0.268
+tick.sanren.ac. .TC. 1 u 257 1024 377 23.214 0.158 0.110
Sat Oct 31 18:04:16 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (6350GB)
200GB available in /atlas/red...OK (9459GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.2T 6.1T 41% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
admin:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
tcs:/dev/mapper/ubuntu--vg-ubuntu--lv 98G 38G 56G 41% /
tcs:/dev/nvme0n1p2 2.0G 131M 1.7G 8% /boot
tcs:/dev/nvme0n1p1 1.1G 6.1M 1.1G 1% /boot/efi
proc1:/dev/md0p1 15T 4.4T 9.1T 33% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.8T 12T 13% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 739G 13T 6% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Sat Oct 31 18:04:16 SAST 2026 [elapsed=7 sec] SERVICES1
qcam
chiller...OK
dome...OK
mount...OK
modo...OK
cam...OK
acam...OK
weather...OK
met...OK
sentry...OK
dfm...OK
duplicates...OK
Sat Oct 31 18:04:16 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Sat Oct 31 18:04:16 SAST 2026 [elapsed=7 sec] SERVICES2
Sat Oct 31 18:04:16 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Oct 31 18:04:20 SAST 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= 920kB time=00:00:29.44 bitrate= 256.0kbits/s speed=1.49e+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=90.00 CLOSED/CLOSED (0%) IDLE
Sat Oct 31 18:07:38 SAST 2026 [elapsed=209 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: 300.58 -29.49, az/alt=324.73 +86.49 idle(e) IDLE
Sat Oct 31 18:08:29 SAST 2026 [elapsed=260 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Oct 31 18:08:49 SAST 2026 [elapsed=280 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Sat Oct 31 18:08:49 SAST 2026 [elapsed=280 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 (-53.7C)
Checking CCD plane: Z0=+1772.00 DZDX=-946.00 DZDY=+3835.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Oct 31 18:08:49 SAST 2026 [elapsed=280 sec] WEATHER
status weather: C W 19.6C 38% 30/38kph@317 DP15.4C/40C/d IDLE
...OK
Sat Oct 31 18:08:49 SAST 2026 [elapsed=280 sec] MET
status...OK
met: c=N o=Y Ro25d Co8h Wo8d Ho4d To37d Do12h IDLE
Sat Oct 31 18:08:49 SAST 2026 [elapsed=280 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Oct 31 18:08:51 SAST 2026 [elapsed=282 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 329.50 -14.64, az/alt=59.90 +60.06 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 -2 0.0%
A 2 0.1mm 15 N F R | B -2 -0.1mm 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 10 0.1%
A 0.051s 103 1.1%
A 0.081s 392 4.3%
A 0.111s 738 8.1%
A 0.142s 1189 13.0%
A 0.172s 1783 19.5%
A 0.202s 2467 26.9%
A 0.232s 3259 35.6%
A 0.263s 4165 45.5%
A 0.293s 5111 55.8%
A 0.323s 5989 65.4%
A 0.354s 6787 74.1%
A 0.384s 7438 81.3%
A 0.414s 7999 87.4%
A 0.444s 8470 92.5%
A 0.475s 8789 96.0%
A 0.505s 9020 98.5%
A 0.535s 9152 100.0%
B 0.020s 1 0.0%
B 0.050s 94 1.0%
B 0.081s 373 4.1%
B 0.111s 725 7.9%
B 0.141s 1202 13.1%
B 0.172s 1777 19.4%
B 0.202s 2466 26.9%
B 0.233s 3258 35.6%
B 0.263s 4167 45.5%
B 0.293s 5101 55.7%
B 0.323s 5993 65.5%
B 0.354s 6775 74.0%
B 0.384s 7435 81.2%
B 0.414s 8009 87.5%
B 0.444s 8456 92.4%
B 0.475s 8796 96.1%
B 0.505s 9028 98.6%
B 0.535s 9143 99.9%
B 0.565s 9159 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8771 95.8%
A 0.111s 8413 91.9%
A 0.141s 7969 87.1%
A 0.172s 7372 80.5%
A 0.202s 6693 73.1%
A 0.232s 5897 64.4%
A 0.262s 4982 54.4%
A 0.293s 4044 44.2%
A 0.323s 3165 34.6%
A 0.354s 2377 26.0%
A 0.395s 1710 18.7%
A 0.425s 976 10.7%
A 0.455s 565 6.2%
A 0.485s 262 2.9%
A 0.516s 77 0.8%
A 0.546s -3 0.0%
B 0.020s 9145 99.9%
B 0.050s 9025 98.6%
B 0.081s 8760 95.7%
B 0.111s 8410 91.9%
B 0.141s 7938 86.7%
B 0.171s 7361 80.4%
B 0.202s 6680 73.0%
B 0.232s 5869 64.1%
B 0.262s 4950 54.1%
B 0.293s 4034 44.1%
B 0.323s 3125 34.1%
B 0.353s 2361 25.8%
B 0.383s 1699 18.6%
B 0.414s 1123 12.3%
B 0.444s 679 7.4%
B 0.475s 351 3.8%
B 0.505s 123 1.3%
B 0.535s 8 0.1%
A 1 0.0mm 15 N F R | B -5 -0.2mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.535 seconds.
Shutter B opened to 100.0 percent in 0.565 seconds.
Shutter A closed to 0.0 percent in 0.546 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.02e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9252 IDLE
Sat Oct 31 18:09:28 SAST 2026 [elapsed=319 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
taking preflight exposures:
acam...OK
acam image:
124M Oct 31 18:09 /atlas/obs/03a/61345/03a61345e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Oct 31 18:09:50 SAST 2026 [elapsed=341 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (53 seconds old)
OTA humidity level...OK (2%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Oct 31 18:09:51 SAST 2026 [elapsed=342 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61344.67351052|info|galildriver|using focus model: foc=9187+(4.30)*20.8+(-0.40)*60.2=9252.3
61344.67351518|info|galildriver|o 2 IN | cass: 3034119 15.17 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54009811 9252 um b=0f [cmd]
bestfocus for o...OK
Sat Oct 31 18:09:52 SAST 2026 [elapsed=343 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Oct 31 18:10:18 SAST 2026 [elapsed=369 sec] Disabling mount tracking.
Waiting on the mount ... done.
Turning tracking off ... done.
Waiting on the mount ... done.
Recheck mount status ... done.
doorpsw 3 OFF redLED
doorpsw 2 OFF whiteLED
Sat Oct 31 18:10:20 SAST 2026 [elapsed=371 sec] NOTICES: det_dzdx=-946 is outside range +-250 from -558; det_dzdy=3835 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sat Oct 31 18:10:20 SAST 2026 [elapsed=371 sec] Happy observing!
Sat Oct 31 18:10:20 SAST 2026 [elapsed=371 sec] Preflight took 371 seconds to complete.
Sat Oct 31 18:10:20 SAST 2026 [elapsed=371 sec] STARTING CLEANUP
Turning off LEDs
doorpsw 3 OFF redLED
doorpsw 2 OFF whiteLED
Releasing TCS lock [preflight]
OK TCS lock released by preflight-STH
Preflight image
Shutter acutation data:
A 0.020s 4 0.0% A 0.050s 114 1.2% A 0.081s 386 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.172s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3265 35.7% A 0.262s 4173 45.6% A 0.292s 5104 55.8% A 0.322s 5998 65.5% A 0.353s 6776 74.0% A 0.383s 7413 81.0% A 0.413s 8005 87.4% A 0.443s 8458 92.4% A 0.474s 8782 95.9% A 0.504s 9022 98.6% A 0.534s 9136 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.050s 115 1.3% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1185 12.9% B 0.171s 1753 19.2% B 0.202s 2444 26.7% B 0.232s 3241 35.4% B 0.262s 4135 45.2% B 0.292s 5073 55.4% B 0.323s 5961 65.1% B 0.353s 6750 73.7% B 0.383s 7419 81.0% B 0.413s 7983 87.2% B 0.443s 8442 92.2% B 0.474s 8785 96.0% B 0.504s 9017 98.5% B 0.534s 9134 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9050 98.9% A 0.081s 8777 95.9% A 0.111s 8408 91.9% A 0.141s 7958 86.9% A 0.171s 7380 80.6% A 0.201s 6691 73.1% A 0.232s 5894 64.4% A 0.262s 4983 54.4% A 0.292s 4038 44.1% A 0.322s 3166 34.6% A 0.352s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.443s 693 7.6% A 0.473s 359 3.9% A 0.504s 125 1.4% A 0.534s 13 0.1% A 0.564s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9019 98.5% B 0.081s 8772 95.8% B 0.111s 8423 92.0% B 0.141s 7952 86.9% B 0.171s 7377 80.6% B 0.201s 6690 73.1% B 0.232s 5920 64.7% B 0.262s 5010 54.7% B 0.292s 4083 44.6% B 0.322s 3191 34.9% B 0.353s 2416 26.4% B 0.383s 1724 18.8% B 0.413s 1165 12.7% B 0.443s 712 7.8% B 0.473s 364 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.564s 1 0.0% A 1 0.0mm 15 N F R | B 1 0.0mm 15 N F R