STH Recent Preflight: 61277
Executing preflight for 61277 at Mon Aug 24 17:17:30 SAST 2026.
Log can be found in /atlas/obs/03/61277/preflight.dat.
Setting donefile '/atlas/obs/03/61277/preflight_complete.20260824151730.30267' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260824151730.30267.
Mon Aug 24 17:17:30 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Aug 24 17:17:30 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [90229c36-8041-4815-894b-e937b87ecf30;1800]
Mon Aug 24 17:17:30 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Aug 24 17:17:31 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Aug 24 17:17:31 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Mon Aug 24 17:17:31 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Aug 24 17:17:31 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1787584642
OK
Mon Aug 24 17:17:31 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Aug 24 17:17:31 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
Mon Aug 24 17:17:33 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
Mon Aug 24 17:17:34 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Mon Aug 24 17:17:34 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Mon Aug 24 15:17:34 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 500 1024 377 0.991 0.028 0.075
+metbox2.sth.atl .PPS. 1 u 530 1024 377 0.321 0.016 0.076
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 208.219.48.14 2 u 929 1024 377 23.290 0.581 1.991
-ntp.as3741.net 146.64.58.41 2 u 398 1024 377 23.186 -0.119 0.345
-ntp2.as3741.net 146.64.58.41 2 u 156 1024 377 7.305 -0.059 0.096
-ntp2.inx.net.za 183.3.52.101 2 u 856 1024 377 7.337 0.104 0.133
-ntp5.inx.net.za 183.3.52.101 2 u 466 1024 377 7.869 0.048 0.782
#102.222.156.151 129.134.26.123 2 u 343 1024 377 24.567 0.153 1.023
+ntp2.nog.net.za 80.72.67.48 3 u 428 1024 377 7.630 0.074 0.080
-139.84.231.68 ( 196.21.187.2 2 u 170 1024 377 23.097 -0.699 0.851
-ntp8.inx.net.za 210.182.58.253 2 u 316 1024 377 16.805 0.001 0.119
Mon Aug 24 17:17:37 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (4864GB)
200GB available in /atlas/red...OK (7329GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.6T 4.7T 55% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 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 6.4T 7.0T 48% /
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/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 737G 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/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17292
Mon Aug 24 17:17:37 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
Mon Aug 24 17:17:37 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Mon Aug 24 17:17:38 SAST 2026 [elapsed=8 sec] SERVICES2
Mon Aug 24 17:17:38 SAST 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Aug 24 17:17:42 SAST 2026 [elapsed=12 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=1.47e+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
Mon Aug 24 17:20:57 SAST 2026 [elapsed=207 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: 222.02 -29.49, az/alt=324.73 +86.49 idle(e) IDLE
Mon Aug 24 17:22:28 SAST 2026 [elapsed=298 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Aug 24 17:22:47 SAST 2026 [elapsed=317 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Mon Aug 24 17:22:47 SAST 2026 [elapsed=317 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.9C)
Checking CCD plane: Z0=+1757.00 DZDX=-878.00 DZDY=+3516.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Aug 24 17:22:47 SAST 2026 [elapsed=317 sec] WEATHER
status weather: clear 20.2C 11% 14/19kph@274 DP28.2C/-75C/d IDLE
...OK
Mon Aug 24 17:22:48 SAST 2026 [elapsed=318 sec] MET
status...OK
met: c=N o=Y Ro12d Co9d Wo13d Ho11d To67d Do32d IDLE
Mon Aug 24 17:22:48 SAST 2026 [elapsed=318 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Aug 24 17:22:48 SAST 2026 [elapsed=318 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 250.94 -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 -1 -0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 7 0.1%
A 0.051s 100 1.1%
A 0.081s 391 4.3%
A 0.111s 723 7.9%
A 0.141s 1173 12.8%
A 0.172s 1784 19.5%
A 0.202s 2468 27.0%
A 0.232s 3259 35.6%
A 0.263s 4164 45.5%
A 0.293s 5114 55.9%
A 0.323s 5963 65.1%
A 0.353s 6756 73.8%
A 0.383s 7420 81.1%
A 0.414s 7983 87.2%
A 0.444s 8452 92.3%
A 0.474s 8781 95.9%
A 0.505s 9015 98.5%
A 0.535s 9148 99.9%
B 0.020s 2 0.0%
B 0.050s 106 1.2%
B 0.081s 394 4.3%
B 0.111s 741 8.1%
B 0.141s 1218 13.3%
B 0.172s 1797 19.6%
B 0.202s 2492 27.2%
B 0.232s 3286 35.9%
B 0.262s 4200 45.9%
B 0.293s 5133 56.1%
B 0.323s 6021 65.8%
B 0.353s 6799 74.3%
B 0.384s 7456 81.5%
B 0.414s 8027 87.7%
B 0.444s 8468 92.5%
B 0.474s 8805 96.2%
B 0.505s 9033 98.7%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8772 95.8%
A 0.111s 8415 91.9%
A 0.141s 7969 87.1%
A 0.172s 7371 80.5%
A 0.202s 6692 73.1%
A 0.232s 5898 64.4%
A 0.263s 4980 54.4%
A 0.293s 4043 44.2%
A 0.323s 3165 34.6%
A 0.353s 2375 25.9%
A 0.384s 1711 18.7%
A 0.414s 1147 12.5%
A 0.444s 697 7.6%
A 0.474s 355 3.9%
A 0.505s 128 1.4%
A 0.535s 14 0.2%
A 0.565s -4 0.0%
B 0.020s 9146 99.9%
B 0.050s 9025 98.6%
B 0.081s 8761 95.7%
B 0.111s 8411 91.9%
B 0.141s 7939 86.7%
B 0.172s 7360 80.4%
B 0.202s 6670 72.9%
B 0.232s 5869 64.1%
B 0.262s 4954 54.1%
B 0.293s 4050 44.2%
B 0.323s 3165 34.6%
B 0.353s 2384 26.0%
B 0.383s 1713 18.7%
B 0.414s 1143 12.5%
B 0.444s 696 7.6%
B 0.474s 357 3.9%
B 0.505s 130 1.4%
B 0.535s 11 0.1%
B 0.565s -5 0.0%
A 0 0.0mm 15 N F R | B -5 -0.2mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 99.9 percent in 0.535 seconds.
Shutter B opened to 99.9 percent in 0.535 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=1.1e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9254 IDLE
Mon Aug 24 17:23:26 SAST 2026 [elapsed=356 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
124M Aug 24 17:23 /atlas/obs/03a/61277/03a61277e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Aug 24 17:23:48 SAST 2026 [elapsed=378 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (58 seconds old)
OTA humidity level...OK (14%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Aug 24 17:23:48 SAST 2026 [elapsed=378 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61276.64153787|info|galildriver|using focus model: foc=9187+(4.30)*20.7+(-0.40)*60.2=9251.9
61276.64154289|info|galildriver|o 2 IN | cass: 3037843 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54010390 9255 um b=8f M [focus]
61276.64155303|info|galildriver|o 2 IN | cass: 3037842 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54010378 9255 um b=0f [cmd]
bestfocus for o...OK
Mon Aug 24 17:23:51 SAST 2026 [elapsed=381 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Aug 24 17:24:17 SAST 2026 [elapsed=407 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
Mon Aug 24 17:24:19 SAST 2026 [elapsed=409 sec] NOTICES: det_dzdx=-878 is outside range +-250 from -558; det_dzdy=3516 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Mon Aug 24 17:24:19 SAST 2026 [elapsed=409 sec] Happy observing!
Mon Aug 24 17:24:19 SAST 2026 [elapsed=409 sec] Preflight took 409 seconds to complete.
Mon Aug 24 17:24:19 SAST 2026 [elapsed=409 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 122 1.3% A 0.081s 396 4.3% A 0.111s 748 8.2% A 0.141s 1215 13.3% A 0.171s 1803 19.7% A 0.202s 2489 27.2% A 0.232s 3296 36.0% A 0.262s 4203 45.9% A 0.292s 5134 56.1% A 0.323s 6025 65.8% A 0.353s 6796 74.2% A 0.383s 7453 81.4% A 0.413s 8023 87.6% A 0.443s 8457 92.4% A 0.473s 8793 96.1% A 0.504s 9028 98.6% A 0.534s 9137 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.050s 114 1.2% B 0.081s 379 4.1% B 0.111s 729 8.0% B 0.141s 1202 13.1% B 0.171s 1773 19.4% B 0.202s 2468 27.0% B 0.232s 3266 35.7% B 0.262s 4165 45.5% B 0.292s 5104 55.8% B 0.322s 5989 65.4% B 0.353s 6771 74.0% B 0.383s 7439 81.3% B 0.413s 7984 87.2% B 0.443s 8444 92.2% B 0.473s 8786 96.0% B 0.504s 9018 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9058 99.0% A 0.081s 8788 96.0% A 0.111s 8433 92.1% A 0.141s 7975 87.1% A 0.171s 7401 80.8% A 0.201s 6715 73.4% A 0.232s 5922 64.7% A 0.262s 5012 54.8% A 0.292s 4068 44.4% A 0.322s 3220 35.2% A 0.352s 2432 26.6% A 0.383s 1752 19.1% A 0.413s 1180 12.9% A 0.443s 718 7.8% A 0.473s 376 4.1% A 0.504s 137 1.5% A 0.534s 17 0.2% A 0.564s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9013 98.5% B 0.081s 8773 95.8% B 0.111s 8422 92.0% B 0.141s 7951 86.9% B 0.171s 7380 80.6% B 0.201s 6690 73.1% B 0.232s 5893 64.4% B 0.262s 4983 54.4% B 0.292s 4052 44.3% B 0.322s 3165 34.6% B 0.352s 2393 26.1% B 0.383s 1703 18.6% B 0.413s 1163 12.7% B 0.443s 711 7.8% B 0.473s 365 4.0% B 0.503s 138 1.5% B 0.534s 15 0.2% B 0.564s -1 0.0% A 0 0.0mm 15 N F R | B -1 -0.0mm 15 N F R