STH Recent Preflight: 61312
Executing preflight for 61312 at Mon Sep 28 17:39:27 SAST 2026.
Log can be found in /atlas/obs/03/61312/preflight.dat.
Setting donefile '/atlas/obs/03/61312/preflight_complete.20260928153927.25962' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260928153927.25962.
Mon Sep 28 17:39:27 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Sep 28 17:39:27 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [e95915b8-f851-400a-ad64-f533fc91a4b2;1800]
Mon Sep 28 17:39:27 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Sep 28 17:39:28 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Sep 28 17:39:28 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Mon Sep 28 17:39:28 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Sep 28 17:39:28 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1790609967
OK
Mon Sep 28 17:39:28 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Sep 28 17:39:28 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 Sep 28 17:39:29 SAST 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-03a...OK
proc1 prochain-redpost-03x...OK
Mon Sep 28 17:39:30 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Sep 28 17:39:30 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Mon Sep 28 15:39:30 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 176 1024 377 0.970 0.008 0.064
+metbox2.sth.atl .PPS. 1 u 419 1024 377 0.281 -0.012 0.037
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 196.21.187.2 2 u 388 1024 377 21.967 0.487 1.013
-ntp.as3741.net 155.232.19.6 2 u 930 1024 377 22.188 -0.358 1.882
-ntp2.as3741.net 155.232.19.6 2 u 915 1024 377 5.929 0.118 0.068
-ntp2.inx.net.za 210.182.58.253 2 u 373 1024 377 6.022 0.298 0.041
+ntp2.nog.net.za 80.72.67.48 3 u 259 1024 377 6.332 0.017 0.022
-139.84.231.68 196.21.187.2 2 u 907 1024 377 24.808 2.393 3.044
+ntp7.inx.net.za 183.3.52.101 2 u 717 1024 377 15.169 0.013 1.153
+tick.sanren.ac. .TC. 1 u 452 1024 377 21.946 0.023 0.059
Mon Sep 28 17:39:32 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6027GB)
200GB available in /atlas/red...OK (9410GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.5T 5.8T 44% /
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 4.4T 9.0T 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 738G 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
Mon Sep 28 17:39:32 SAST 2026 [elapsed=5 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 Sep 28 17:39:32 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Mon Sep 28 17:39:32 SAST 2026 [elapsed=5 sec] SERVICES2
Mon Sep 28 17:39:32 SAST 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Sep 28 17:39:36 SAST 2026 [elapsed=9 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=1.44e+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 Sep 28 17:42:50 SAST 2026 [elapsed=203 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: 261.84 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Mon Sep 28 17:43:41 SAST 2026 [elapsed=254 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Sep 28 17:44:00 SAST 2026 [elapsed=273 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Mon Sep 28 17:44:00 SAST 2026 [elapsed=273 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (6 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.9C)
Checking CCD plane: Z0=+1697.00 DZDX=-926.00 DZDY=+2083.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Sep 28 17:44:00 SAST 2026 [elapsed=273 sec] WEATHER
status weather: clear 8.4C 69% 29/41kph@150 DP4.3C/-38C/d IDLE
...OK
Mon Sep 28 17:44:01 SAST 2026 [elapsed=274 sec] MET
status...OK
met: c=N o=Y Ro1d Co8h Wo4d Ho7h To4d Do3d IDLE
Mon Sep 28 17:44:02 SAST 2026 [elapsed=275 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Sep 28 17:44:02 SAST 2026 [elapsed=275 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 290.76 -14.63, az/alt=59.90 +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 8 0.1%
A 0.051s 107 1.2%
A 0.081s 389 4.2%
A 0.111s 733 8.0%
A 0.141s 1189 13.0%
A 0.172s 1782 19.5%
A 0.202s 2466 26.9%
A 0.232s 3286 35.9%
A 0.263s 4194 45.8%
A 0.293s 5143 56.2%
A 0.324s 6019 65.8%
A 0.354s 6803 74.3%
A 0.385s 7457 81.5%
A 0.415s 8035 87.8%
A 0.445s 8491 92.8%
A 0.476s 8810 96.2%
A 0.506s 9035 98.7%
A 0.537s 9156 100.0%
B 0.020s 1 0.0%
B 0.051s 97 1.1%
B 0.081s 381 4.2%
B 0.111s 726 7.9%
B 0.142s 1196 13.1%
B 0.172s 1777 19.4%
B 0.202s 2464 26.9%
B 0.233s 3256 35.6%
B 0.263s 4167 45.5%
B 0.293s 5131 56.1%
B 0.324s 6021 65.8%
B 0.354s 6794 74.2%
B 0.384s 7456 81.5%
B 0.415s 8027 87.7%
B 0.445s 8468 92.5%
B 0.476s 8809 96.2%
B 0.506s 9035 98.7%
B 0.536s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9066 99.0%
A 0.081s 8763 95.7%
A 0.111s 8402 91.8%
A 0.142s 7952 86.9%
A 0.172s 7352 80.3%
A 0.203s 6669 72.9%
A 0.233s 5869 64.1%
A 0.263s 4953 54.1%
A 0.294s 4018 43.9%
A 0.324s 3137 34.3%
A 0.354s 2352 25.7%
A 0.384s 1689 18.5%
A 0.415s 1130 12.3%
A 0.445s 685 7.5%
A 0.475s 345 3.8%
A 0.506s 123 1.3%
A 0.536s 11 0.1%
A 0.566s -7 0.0%
B 0.020s 9145 99.9%
B 0.051s 9034 98.7%
B 0.081s 8774 95.8%
B 0.111s 8412 91.9%
B 0.142s 7942 86.8%
B 0.172s 7360 80.4%
B 0.202s 6670 72.9%
B 0.233s 5871 64.1%
B 0.263s 4955 54.1%
B 0.293s 4022 43.9%
B 0.323s 3135 34.2%
B 0.353s 2383 26.0%
B 0.384s 1712 18.7%
B 0.414s 1140 12.5%
B 0.444s 696 7.6%
B 0.475s 346 3.8%
B 0.505s 121 1.3%
B 0.535s 10 0.1%
B 0.566s -6 0.0%
A 0 0.0mm 15 N F R | B -6 -0.2mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.537 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.566 seconds.
Shutter B closed to 0.0 percent in 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.06e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9225 IDLE
Mon Sep 28 17:44:40 SAST 2026 [elapsed=313 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:
134M Sep 28 17:44 /atlas/obs/03a/61312/03a61312e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Sep 28 17:45:03 SAST 2026 [elapsed=336 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (5 seconds old)
OTA humidity level...OK (4%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Sep 28 17:45:03 SAST 2026 [elapsed=336 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61311.65629300|info|galildriver|using focus model: foc=9187+(4.30)*13.7+(-0.40)*60.2=9221.8
61311.65629802|info|galildriver|o 2 IN | cass: 3040273 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004470 9225 um b=8f M [focus]
61311.65630819|info|galildriver|o 2 IN | cass: 3040275 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004463 9225 um b=0f [cmd]
bestfocus for o...OK
Mon Sep 28 17:45:05 SAST 2026 [elapsed=338 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Sep 28 17:45:31 SAST 2026 [elapsed=364 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 Sep 28 17:45:32 SAST 2026 [elapsed=365 sec] NOTICES: det_dzdx=-926 is outside range +-250 from -558; det_dzdy=2083 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 Sep 28 17:45:32 SAST 2026 [elapsed=365 sec] Happy observing!
Mon Sep 28 17:45:32 SAST 2026 [elapsed=365 sec] Preflight took 365 seconds to complete.
Mon Sep 28 17:45:32 SAST 2026 [elapsed=365 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 117 1.3% A 0.081s 387 4.2% A 0.111s 735 8.0% A 0.141s 1199 13.1% A 0.171s 1776 19.4% A 0.202s 2466 26.9% A 0.232s 3267 35.7% A 0.262s 4173 45.6% A 0.292s 5105 55.8% A 0.323s 5995 65.5% A 0.353s 6775 74.0% A 0.383s 7434 81.2% A 0.413s 8005 87.4% A 0.444s 8457 92.4% A 0.474s 8791 96.0% A 0.504s 9028 98.6% A 0.534s 9139 99.8% A 0.565s 9154 100.0% B 0.020s 0 0.0% B 0.050s 113 1.2% B 0.081s 381 4.2% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1776 19.4% B 0.202s 2467 26.9% B 0.232s 3268 35.7% B 0.262s 4166 45.5% B 0.292s 5102 55.7% B 0.323s 5988 65.4% B 0.353s 6774 74.0% B 0.383s 7439 81.3% B 0.413s 8001 87.4% B 0.443s 8456 92.4% B 0.474s 8794 96.1% B 0.504s 9017 98.5% B 0.534s 9135 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9055 98.9% A 0.081s 8790 96.0% A 0.111s 8434 92.1% A 0.141s 7974 87.1% A 0.172s 7401 80.8% A 0.202s 6692 73.1% A 0.232s 5893 64.4% A 0.262s 4982 54.4% A 0.293s 4068 44.4% A 0.323s 3192 34.9% A 0.353s 2409 26.3% A 0.383s 1730 18.9% A 0.414s 1164 12.7% A 0.444s 707 7.7% A 0.474s 368 4.0% A 0.504s 130 1.4% A 0.535s 15 0.2% A 0.565s 1 0.0% B 0.020s 9142 99.9% B 0.050s 9020 98.5% B 0.081s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7949 86.8% B 0.171s 7377 80.6% B 0.202s 6712 73.3% B 0.232s 5891 64.4% B 0.262s 5010 54.7% B 0.293s 4082 44.6% B 0.323s 3163 34.6% B 0.353s 2391 26.1% B 0.383s 1724 18.8% B 0.414s 1148 12.5% B 0.444s 712 7.8% B 0.474s 365 4.0% B 0.504s 136 1.5% B 0.535s 16 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R