STH Recent Preflight: 61355
Executing preflight for 61355 at Tue Nov 10 18:13:11 SAST 2026.
Log can be found in /atlas/obs/03/61355/preflight.dat.
Setting donefile '/atlas/obs/03/61355/preflight_complete.20261110161311.7970' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261110161311.7970.
Tue Nov 10 18:13:11 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Nov 10 18:13:11 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [8ef77315-2211-4bc7-899e-c00b7e5b7cc5;1800]
Tue Nov 10 18:13:11 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Nov 10 18:13:12 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Nov 10 18:13:12 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Nov 10 18:13:12 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Nov 10 18:13:12 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1794327186
OK
Tue Nov 10 18:13:12 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Nov 10 18:13:12 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
Tue Nov 10 18:13:14 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
Tue Nov 10 18:13:14 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Nov 10 18:13:14 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Nov 10 16:13:14 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 935 1024 377 1.073 -0.051 0.105
+metbox2.sth.atl .PPS. 1 u 504 1024 377 0.262 -0.071 1.982
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 327 1024 377 23.329 0.834 0.261
+ntp.as3741.net 210.182.58.253 2 u 356 1024 377 23.287 -0.323 1.040
+ntp2.as3741.net 146.64.58.41 2 u 292 1024 377 7.251 0.058 0.071
-ntp2.inx.net.za 183.3.52.101 2 u 330 1024 377 7.257 -0.025 0.069
-ntp2.nog.net.za 80.72.67.48 3 u 328 1024 377 7.546 0.103 0.042
-139.84.231.68 ( 196.21.187.2 2 u 134 1024 377 22.870 -0.300 0.098
-ntp7.inx.net.za 102.176.229.251 2 u 480 1024 377 16.700 -0.455 0.361
-tick.sanren.ac. .TC. 1 u 503 1024 377 23.278 0.019 0.086
Tue Nov 10 18:13:20 SAST 2026 [elapsed=9 sec] DISKS
200GB available in /atlas/obs...OK (6458GB)
200GB available in /atlas/red...OK (8708GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.1T 6.2T 40% /
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 5.1T 8.4T 38% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.9T 12T 14% /
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
Tue Nov 10 18:13:20 SAST 2026 [elapsed=9 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
Tue Nov 10 18:13:20 SAST 2026 [elapsed=9 sec] Disabling mount tracking.
Tue Nov 10 18:13:20 SAST 2026 [elapsed=9 sec] SERVICES2
Tue Nov 10 18:13:20 SAST 2026 [elapsed=9 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Nov 10 18:13:25 SAST 2026 [elapsed=14 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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.52e+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
Tue Nov 10 18:16:19 SAST 2026 [elapsed=188 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: 312.62 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Tue Nov 10 18:17:10 SAST 2026 [elapsed=239 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Nov 10 18:17:29 SAST 2026 [elapsed=258 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.0 IDLE
Tue Nov 10 18:17:29 SAST 2026 [elapsed=258 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 (-53.3C)
Checking CCD plane: Z0=+1796.00 DZDX=-936.00 DZDY=+4410.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Nov 10 18:17:29 SAST 2026 [elapsed=258 sec] WEATHER
status weather: W 25.7C 16% 34/44kph@288 DP26.3C/-53C/d IDLE
...OK
Tue Nov 10 18:17:29 SAST 2026 [elapsed=258 sec] MET
status...OK
met: c=N o=Y Ro35d Co2d Wo3d Ho2d To47d Do10d IDLE
Tue Nov 10 18:17:30 SAST 2026 [elapsed=259 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Nov 10 18:17:30 SAST 2026 [elapsed=259 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 341.53 -14.63, az/alt=59.91 +60.05 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 11 0.1%
A 0.051s 101 1.1%
A 0.081s 391 4.3%
A 0.111s 738 8.1%
A 0.141s 1189 13.0%
A 0.172s 1788 19.5%
A 0.202s 2467 26.9%
A 0.232s 3259 35.6%
A 0.263s 4166 45.5%
A 0.293s 5114 55.9%
A 0.323s 5987 65.4%
A 0.353s 6782 74.1%
A 0.384s 7442 81.3%
A 0.414s 7998 87.4%
A 0.444s 8466 92.5%
A 0.475s 8792 96.0%
A 0.505s 9020 98.5%
A 0.535s 9150 100.0%
B 0.020s 0 0.0%
B 0.050s 97 1.1%
B 0.081s 384 4.2%
B 0.111s 727 7.9%
B 0.141s 1201 13.1%
B 0.172s 1776 19.4%
B 0.202s 2467 26.9%
B 0.232s 3258 35.6%
B 0.263s 4167 45.5%
B 0.293s 5102 55.7%
B 0.323s 5992 65.5%
B 0.353s 6776 74.0%
B 0.384s 7434 81.2%
B 0.414s 8010 87.5%
B 0.444s 8454 92.4%
B 0.474s 8794 96.1%
B 0.505s 9027 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 9063 99.0%
A 0.081s 8770 95.8%
A 0.111s 8413 91.9%
A 0.141s 7969 87.1%
A 0.171s 7373 80.5%
A 0.202s 6692 73.1%
A 0.232s 5898 64.4%
A 0.262s 4987 54.5%
A 0.292s 4068 44.4%
A 0.323s 3163 34.6%
A 0.353s 2402 26.2%
A 0.383s 1709 18.7%
A 0.413s 1148 12.5%
A 0.444s 699 7.6%
A 0.474s 357 3.9%
A 0.504s 131 1.4%
A 0.535s 17 0.2%
A 0.565s -5 0.0%
B 0.020s 9146 99.9%
B 0.050s 9032 98.7%
B 0.081s 8770 95.8%
B 0.111s 8421 92.0%
B 0.141s 7957 86.9%
B 0.172s 7381 80.6%
B 0.202s 6706 73.3%
B 0.232s 5897 64.4%
B 0.262s 4975 54.3%
B 0.293s 4067 44.4%
B 0.323s 3152 34.4%
B 0.353s 2384 26.0%
B 0.383s 1720 18.8%
B 0.414s 1137 12.4%
B 0.444s 693 7.6%
B 0.474s 360 3.9%
B 0.504s 129 1.4%
B 0.535s 10 0.1%
B 0.565s -5 0.0%
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 0.565 seconds.
Shutter B closed to 0.0 percent in 0.565 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.13e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9335 IDLE
Tue Nov 10 18:18:06 SAST 2026 [elapsed=295 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.0 IDLE
taking preflight exposures:
acam...OK
acam image:
125M Nov 10 18:18 /atlas/obs/03a/61355/03a61355e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Nov 10 18:18:29 SAST 2026 [elapsed=318 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (19 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Nov 10 18:18:29 SAST 2026 [elapsed=318 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61354.67951025|info|galildriver|using focus model: foc=9187+(4.30)*24.1+(-0.40)*60.2=9266.5
61354.67951561|info|galildriver|o 2 IN | cass: 3031090 15.16 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54026485 9336 um b=8f M [focus]
61354.67952133|info|galildriver|o 2 IN | cass: 3031096 15.16 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54026489 9336 um b=8f M [focus]
61354.67952471|info|galildriver|o 2 IN | cass: 3031089 15.16 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54026484 9336 um b=8f M [focus]
61354.67953287|info|galildriver|o 2 IN | cass: 3031094 15.16 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54026487 9336 um b=0f [cmd]
bestfocus for o...OK
Tue Nov 10 18:18:32 SAST 2026 [elapsed=321 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Nov 10 18:18:58 SAST 2026 [elapsed=347 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
Tue Nov 10 18:18:59 SAST 2026 [elapsed=348 sec] NOTICES: det_dzdx=-936 is outside range +-250 from -558; det_dzdy=4410 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Tue Nov 10 18:18:59 SAST 2026 [elapsed=348 sec] Happy observing!
Tue Nov 10 18:18:59 SAST 2026 [elapsed=348 sec] Preflight took 348 seconds to complete.
Tue Nov 10 18:18:59 SAST 2026 [elapsed=348 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 384 4.2% A 0.111s 737 8.1% A 0.142s 1197 13.1% A 0.172s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3293 36.0% A 0.263s 4174 45.6% A 0.293s 5103 55.7% A 0.323s 5997 65.5% A 0.353s 6776 74.0% A 0.384s 7432 81.2% A 0.414s 8005 87.4% A 0.444s 8460 92.4% A 0.474s 8793 96.1% A 0.505s 9027 98.6% A 0.535s 9139 99.8% A 0.565s 9154 100.0% B 0.020s 1 0.0% B 0.050s 113 1.2% B 0.081s 378 4.1% B 0.111s 729 8.0% B 0.141s 1202 13.1% B 0.171s 1774 19.4% B 0.202s 2467 26.9% B 0.232s 3266 35.7% B 0.262s 4167 45.5% B 0.292s 5104 55.8% B 0.322s 5988 65.4% B 0.353s 6770 74.0% B 0.383s 7437 81.2% B 0.413s 8001 87.4% B 0.443s 8456 92.4% B 0.474s 8798 96.1% B 0.504s 9023 98.6% B 0.534s 9140 99.8% B 0.565s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9048 98.8% A 0.081s 8779 95.9% A 0.111s 8421 92.0% A 0.141s 7957 86.9% A 0.171s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4983 54.4% A 0.292s 4037 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.443s 693 7.6% A 0.474s 359 3.9% A 0.504s 124 1.4% A 0.534s 13 0.1% A 0.564s 1 0.0% B 0.020s 9143 99.9% B 0.050s 9020 98.5% B 0.081s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.171s 7379 80.6% B 0.202s 6690 73.1% B 0.232s 5895 64.4% B 0.262s 4980 54.4% B 0.293s 4053 44.3% B 0.323s 3162 34.5% B 0.353s 2397 26.2% B 0.383s 1703 18.6% B 0.414s 1144 12.5% B 0.444s 713 7.8% B 0.474s 363 4.0% B 0.504s 138 1.5% B 0.534s 18 0.2% B 0.565s 1 0.0% A 1 0.0mm 15 N F R | B 1 0.0mm 15 N F R