STH Recent Preflight: 61343
Executing preflight for 61343 at Thu Oct 29 18:02:24 SAST 2026.
Log can be found in /atlas/obs/03/61343/preflight.dat.
Setting donefile '/atlas/obs/03/61343/preflight_complete.20261029160224.3532' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261029160224.3532.
Thu Oct 29 18:02:24 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Oct 29 18:02:24 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [b45eff91-0053-4c1c-8806-d0e1d78271b4;1800]
Thu Oct 29 18:02:24 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu Oct 29 18:02:25 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Oct 29 18:02:25 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu Oct 29 18:02:25 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Oct 29 18:02:25 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1793289741
OK
Thu Oct 29 18:02:25 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Oct 29 18:02:25 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
Thu Oct 29 18:02:27 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
Thu Oct 29 18:02:27 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Oct 29 18:02:27 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Thu Oct 29 16:02:27 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 758 1024 377 0.978 -0.045 0.122
+metbox2.sth.atl .PPS. 1 u 314 1024 377 0.301 -0.045 0.074
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 258 1024 377 23.314 1.455 0.657
+ntp.as3741.net 210.182.58.253 2 u 953 1024 377 22.882 0.012 0.880
+ntp2.as3741.net 146.64.58.41 2 u 959 1024 377 7.271 0.020 0.101
-ntp2.inx.net.za 183.3.52.101 2 u 605 1024 377 7.239 0.053 0.263
+ntp2.nog.net.za 80.72.67.48 3 u 965 1024 377 7.524 0.052 0.087
+139.84.231.68 196.21.187.2 2 u 971 1024 377 22.857 0.032 0.158
-ntp7.inx.net.za 210.182.58.253 2 u 497 1024 377 16.491 0.078 0.319
+tick.sanren.ac. .TC. 1 u 537 1024 377 23.255 0.035 0.097
Thu Oct 29 18:02:40 SAST 2026 [elapsed=16 sec] DISKS
200GB available in /atlas/obs...OK (6381GB)
200GB available in /atlas/red...OK (9295GB)
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/17284
archon:/dev/loop1 106M 106M 0 100% /snap/core/17292
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 4.5T 8.9T 34% /
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
Thu Oct 29 18:02:40 SAST 2026 [elapsed=16 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
Thu Oct 29 18:02:40 SAST 2026 [elapsed=16 sec] Disabling mount tracking.
Thu Oct 29 18:02:40 SAST 2026 [elapsed=16 sec] SERVICES2
Thu Oct 29 18:02:40 SAST 2026 [elapsed=16 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Oct 29 18:02:44 SAST 2026 [elapsed=20 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=1.46e+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
Thu Oct 29 18:05:29 SAST 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: 298.07 -29.49, az/alt=324.74 +86.49 idle(e) IDLE
Thu Oct 29 18:06:20 SAST 2026 [elapsed=236 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Oct 29 18:06:40 SAST 2026 [elapsed=256 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Thu Oct 29 18:06:40 SAST 2026 [elapsed=256 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (10 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.4C)
Checking CCD plane: Z0=+1794.00 DZDX=-925.00 DZDY=+4378.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Oct 29 18:06:40 SAST 2026 [elapsed=256 sec] WEATHER
status weather: clear 26.4C 18% 17/25kph@293 DP25.9C/11C/d IDLE
...OK
Thu Oct 29 18:06:41 SAST 2026 [elapsed=257 sec] MET
status...OK
met: c=N o=Y Ro23d Co1d Wo6d Ho2d To35d Do1d IDLE
Thu Oct 29 18:06:41 SAST 2026 [elapsed=257 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Oct 29 18:06:41 SAST 2026 [elapsed=257 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 326.99 -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 -1 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 8 0.1%
A 0.051s 105 1.1%
A 0.081s 393 4.3%
A 0.111s 734 8.0%
A 0.141s 1191 13.0%
A 0.172s 1789 19.5%
A 0.202s 2467 26.9%
A 0.232s 3258 35.6%
A 0.262s 4165 45.5%
A 0.293s 5115 55.9%
A 0.323s 5987 65.4%
A 0.353s 6780 74.1%
A 0.383s 7443 81.3%
A 0.414s 7997 87.4%
A 0.444s 8452 92.3%
A 0.474s 8792 96.0%
A 0.504s 9013 98.5%
A 0.535s 9148 99.9%
B 0.020s 2 0.0%
B 0.050s 102 1.1%
B 0.081s 397 4.3%
B 0.111s 741 8.1%
B 0.141s 1217 13.3%
B 0.172s 1800 19.7%
B 0.202s 2490 27.2%
B 0.232s 3286 35.9%
B 0.262s 4197 45.8%
B 0.293s 5131 56.1%
B 0.323s 6022 65.8%
B 0.353s 6798 74.3%
B 0.383s 7454 81.4%
B 0.414s 8026 87.7%
B 0.444s 8466 92.5%
B 0.474s 8804 96.2%
B 0.505s 9033 98.7%
B 0.535s 9144 99.9%
B 0.565s 9157 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9069 99.1%
A 0.081s 8782 95.9%
A 0.111s 8425 92.0%
A 0.141s 7985 87.2%
A 0.172s 7392 80.8%
A 0.202s 6715 73.4%
A 0.233s 5924 64.7%
A 0.263s 4983 54.4%
A 0.293s 4072 44.5%
A 0.324s 3166 34.6%
A 0.354s 2377 26.0%
A 0.384s 1709 18.7%
A 0.415s 1148 12.5%
A 0.445s 699 7.6%
A 0.476s 355 3.9%
A 0.506s 123 1.3%
A 0.536s 12 0.1%
A 0.567s -4 0.0%
B 0.020s 9146 99.9%
B 0.051s 9038 98.7%
B 0.081s 8769 95.8%
B 0.111s 8422 92.0%
B 0.142s 7954 86.9%
B 0.172s 7380 80.6%
B 0.202s 6701 73.2%
B 0.233s 5895 64.4%
B 0.263s 4979 54.4%
B 0.293s 4062 44.4%
B 0.324s 3154 34.5%
B 0.354s 2385 26.1%
B 0.384s 1717 18.8%
B 0.415s 1138 12.4%
B 0.445s 696 7.6%
B 0.475s 362 4.0%
B 0.506s 132 1.4%
B 0.536s 11 0.1%
B 0.566s -5 0.0%
A 1 0.0mm 15 N F R | B -4 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 99.9 percent in 0.535 seconds.
Shutter B opened to 100.0 percent in 0.565 seconds.
Shutter A closed to 0.0 percent in 0.567 seconds.
Shutter B closed to 0.0 percent in 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed= 938x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9326 IDLE
Thu Oct 29 18:07:19 SAST 2026 [elapsed=295 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:
127M Oct 29 18:07 /atlas/obs/03a/61343/03a61343e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Oct 29 18:07:41 SAST 2026 [elapsed=317 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (14 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Oct 29 18:07:41 SAST 2026 [elapsed=317 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61342.67201474|info|galildriver|using focus model: foc=9187+(4.30)*24.2+(-0.40)*60.2=9267.0
61342.67202010|info|galildriver|o 2 IN | cass: 3031481 15.16 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54024620 9326 um b=8f M [focus]
61342.67202838|info|galildriver|o 2 IN | cass: 3031480 15.16 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54024234 9324 um b=8f M [focus]
61342.67203176|info|galildriver|o 2 IN | cass: 3031487 15.16 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54024016 9323 um b=8f M [focus]
61342.67203993|info|galildriver|o 2 IN | cass: 3031483 15.16 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54023768 9322 um b=0f [cmd]
bestfocus for o...OK
Thu Oct 29 18:07:45 SAST 2026 [elapsed=321 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Oct 29 18:08:10 SAST 2026 [elapsed=346 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
Thu Oct 29 18:08:11 SAST 2026 [elapsed=347 sec] NOTICES: det_dzdx=-925 is outside range +-250 from -558; det_dzdy=4378 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Thu Oct 29 18:08:11 SAST 2026 [elapsed=347 sec] Happy observing!
Thu Oct 29 18:08:11 SAST 2026 [elapsed=347 sec] Preflight took 347 seconds to complete.
Thu Oct 29 18:08:11 SAST 2026 [elapsed=347 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 385 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1782 19.5% A 0.202s 2465 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.323s 5998 65.5% A 0.353s 6775 74.0% A 0.383s 7432 81.2% A 0.413s 8005 87.4% A 0.444s 8458 92.4% A 0.474s 8793 96.1% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.051s 113 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.142s 1201 13.1% B 0.172s 1773 19.4% B 0.202s 2467 26.9% B 0.232s 3268 35.7% B 0.263s 4166 45.5% B 0.293s 5103 55.7% B 0.323s 5988 65.4% B 0.353s 6773 74.0% B 0.384s 7439 81.3% B 0.414s 8002 87.4% B 0.444s 8456 92.4% B 0.474s 8794 96.1% B 0.504s 9024 98.6% B 0.535s 9139 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8422 92.0% A 0.141s 7958 86.9% A 0.172s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.293s 4037 44.1% A 0.323s 3166 34.6% A 0.353s 2387 26.1% A 0.384s 1711 18.7% A 0.414s 1147 12.5% A 0.444s 706 7.7% A 0.474s 359 3.9% A 0.504s 130 1.4% A 0.535s 15 0.2% A 0.565s 1 0.0% B 0.020s 9143 99.9% B 0.050s 9018 98.5% B 0.081s 8771 95.8% B 0.111s 8421 92.0% B 0.141s 7953 86.9% B 0.171s 7400 80.8% B 0.202s 6714 73.3% B 0.232s 5893 64.4% B 0.262s 5009 54.7% B 0.292s 4083 44.6% B 0.322s 3192 34.9% B 0.353s 2418 26.4% B 0.383s 1725 18.8% B 0.413s 1160 12.7% B 0.443s 713 7.8% B 0.474s 364 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R