STH Recent Preflight: 61311
Executing preflight for 61311 at Sun Sep 27 17:38:45 SAST 2026.
Log can be found in /atlas/obs/03/61311/preflight.dat.
Setting donefile '/atlas/obs/03/61311/preflight_complete.20260927153845.25962' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260927153845.25962.
Sun Sep 27 17:38:45 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Sep 27 17:38:45 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [5a1595ef-5ea8-499f-907d-45f06ce99d9c;1800]
Sun Sep 27 17:38:45 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun Sep 27 17:38:45 SAST 2026 [elapsed=0 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun Sep 27 17:38:45 SAST 2026 [elapsed=0 sec] auxcam is disabled.
Sun Sep 27 17:38:45 SAST 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Sun Sep 27 17:38:45 SAST 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1790523521
OK
Sun Sep 27 17:38:45 SAST 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Sun Sep 27 17:38:46 SAST 2026 [elapsed=0 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
Sun Sep 27 17:38:47 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
Sun Sep 27 17:38:47 SAST 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Sun Sep 27 17:38:47 SAST 2026 [elapsed=2 sec] CLOCKS
admin: Sun Sep 27 15:38:47 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 395 1024 377 0.959 -0.050 0.052
*metbox2.sth.atl .PPS. 1 u 515 1024 377 0.272 -0.106 0.041
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 644 1024 377 23.315 0.272 0.341
-ntp.as3741.net 155.232.19.6 2 u 58 1024 377 22.866 -0.097 0.499
+ntp2.as3741.net 155.232.19.6 2 u 779 1024 377 7.239 0.001 0.075
-ntp2.inx.net.za 210.182.58.253 2 u 394 1024 377 7.306 -0.061 0.099
-ntp2.nog.net.za 80.72.67.48 3 u 486 1024 377 7.552 0.016 0.063
-139.84.231.68 ( 196.21.187.2 2 u 829 1024 377 22.913 -0.100 1.282
-ntp7.inx.net.za 183.3.52.101 2 u 33 1024 377 16.479 -0.806 0.283
-tick.sanren.ac. .TC. 1 u 590 1024 377 23.272 -0.011 0.046
Sun Sep 27 17:38:52 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (6048GB)
200GB available in /atlas/red...OK (9309GB)
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 4.5T 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 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
Sun Sep 27 17:38:52 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
Sun Sep 27 17:38:52 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Sun Sep 27 17:38:52 SAST 2026 [elapsed=7 sec] SERVICES2
Sun Sep 27 17:38:52 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.1/3.0C ? chiller=ON dryer=? IDLE
Sun Sep 27 17:38:57 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= 926kB time=00:00:29.63 bitrate= 256.0kbits/s speed=1.51e+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
Sun Sep 27 17:42:13 SAST 2026 [elapsed=208 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: 260.70 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Sun Sep 27 17:43:03 SAST 2026 [elapsed=258 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Sep 27 17:43:22 SAST 2026 [elapsed=277 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=42.9 IDLE
Sun Sep 27 17:43:22 SAST 2026 [elapsed=277 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.6C)
Checking CCD plane: Z0=+1723.00 DZDX=-928.00 DZDY=+2684.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Sep 27 17:43:22 SAST 2026 [elapsed=277 sec] WEATHER
status weather: clear 11.0C 68% 11/18kph@207 DP3.4C/-101C/d IDLE
...OK
Sun Sep 27 17:43:22 SAST 2026 [elapsed=277 sec] MET
status...OK
met: c=N o=Y Ro8h Co8h Wo3d Ho6h To3d Do2d IDLE
Sun Sep 27 17:43:23 SAST 2026 [elapsed=278 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Sep 27 17:43:23 SAST 2026 [elapsed=278 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 289.61 -14.64, 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 -1 -0.0mm 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 108 1.2%
A 0.081s 392 4.3%
A 0.111s 747 8.2%
A 0.142s 1206 13.2%
A 0.172s 1804 19.7%
A 0.203s 2490 27.2%
A 0.233s 3286 35.9%
A 0.263s 4194 45.8%
A 0.294s 5143 56.2%
A 0.324s 6019 65.8%
A 0.355s 6827 74.6%
A 0.385s 7475 81.7%
A 0.415s 8034 87.8%
A 0.446s 8493 92.8%
A 0.476s 8809 96.2%
A 0.507s 9033 98.7%
A 0.537s 9158 100.0%
B 0.020s 1 0.0%
B 0.051s 97 1.1%
B 0.081s 382 4.2%
B 0.111s 727 7.9%
B 0.142s 1196 13.1%
B 0.172s 1776 19.4%
B 0.202s 2488 27.2%
B 0.233s 3284 35.9%
B 0.263s 4197 45.8%
B 0.293s 5130 56.0%
B 0.324s 6022 65.8%
B 0.354s 6796 74.2%
B 0.384s 7456 81.5%
B 0.415s 8026 87.7%
B 0.445s 8468 92.5%
B 0.475s 8808 96.2%
B 0.506s 9035 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.051s 9058 99.0%
A 0.081s 8760 95.7%
A 0.111s 8402 91.8%
A 0.142s 7952 86.9%
A 0.172s 7352 80.3%
A 0.202s 6669 72.9%
A 0.233s 5869 64.1%
A 0.263s 4953 54.1%
A 0.293s 4016 43.9%
A 0.324s 3110 34.0%
A 0.354s 2328 25.4%
A 0.385s 1671 18.3%
A 0.415s 1114 12.2%
A 0.446s 673 7.4%
A 0.476s 336 3.7%
A 0.506s 118 1.3%
A 0.537s 8 0.1%
B 0.020s 9145 99.9%
B 0.051s 9033 98.7%
B 0.081s 8773 95.8%
B 0.111s 8424 92.0%
B 0.141s 7958 86.9%
B 0.172s 7380 80.6%
B 0.202s 6693 73.1%
B 0.233s 5898 64.4%
B 0.263s 4954 54.1%
B 0.293s 4023 43.9%
B 0.324s 3135 34.2%
B 0.354s 2360 25.8%
B 0.384s 1693 18.5%
B 0.415s 1124 12.3%
B 0.445s 684 7.5%
B 0.475s 346 3.8%
B 0.506s 121 1.3%
B 0.536s 9 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 0.537 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.1 percent in 0.537 seconds.
Shutter B closed to 0.1 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.04e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9227 IDLE
Sun Sep 27 17:43:59 SAST 2026 [elapsed=314 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=42.9 IDLE
taking preflight exposures:
acam...OK
acam image:
134M Sep 27 17:44 /atlas/obs/03a/61311/03a61311e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Sep 27 17:44:22 SAST 2026 [elapsed=337 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (55 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Sep 27 17:44:22 SAST 2026 [elapsed=337 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61310.65581955|info|galildriver|using focus model: foc=9187+(4.30)*16.2+(-0.40)*60.2=9232.6
61310.65582457|info|galildriver|o 2 IN | cass: 3038950 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004905 9228 um b=8f M [focus]
61310.65583473|info|galildriver|o 2 IN | cass: 3038951 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004912 9228 um b=0f [cmd]
bestfocus for o...OK
Sun Sep 27 17:44:25 SAST 2026 [elapsed=340 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Sep 27 17:44:50 SAST 2026 [elapsed=365 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
Sun Sep 27 17:44:51 SAST 2026 [elapsed=366 sec] NOTICES: det_dzdx=-928 is outside range +-250 from -558; det_dzdy=2684 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sun Sep 27 17:44:51 SAST 2026 [elapsed=366 sec] Happy observing!
Sun Sep 27 17:44:51 SAST 2026 [elapsed=366 sec] Preflight took 366 seconds to complete.
Sun Sep 27 17:44:51 SAST 2026 [elapsed=366 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 3 0.0% A 0.050s 115 1.3% A 0.081s 385 4.2% A 0.111s 724 7.9% A 0.141s 1180 12.9% A 0.171s 1762 19.2% A 0.201s 2441 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5073 55.4% A 0.322s 5971 65.2% A 0.353s 6751 73.7% A 0.383s 7413 81.0% A 0.413s 7990 87.3% A 0.443s 8445 92.3% A 0.474s 8784 96.0% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.050s 106 1.2% B 0.081s 370 4.0% B 0.111s 713 7.8% B 0.141s 1186 13.0% B 0.171s 1751 19.1% B 0.201s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4135 45.2% B 0.292s 5073 55.4% B 0.322s 5933 64.8% B 0.352s 6726 73.5% B 0.383s 7401 80.8% B 0.413s 7968 87.0% B 0.443s 8430 92.1% B 0.474s 8776 95.9% B 0.504s 9012 98.4% B 0.534s 9134 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9050 98.9% A 0.081s 8778 95.9% A 0.111s 8420 92.0% A 0.141s 7959 86.9% A 0.171s 7380 80.6% A 0.202s 6692 73.1% A 0.232s 5894 64.4% A 0.262s 4982 54.4% A 0.293s 4038 44.1% A 0.323s 3167 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.414s 1147 12.5% A 0.444s 692 7.6% A 0.474s 359 3.9% A 0.504s 125 1.4% A 0.535s 14 0.2% A 0.565s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9020 98.5% B 0.081s 8772 95.8% B 0.111s 8423 92.0% B 0.141s 7954 86.9% B 0.171s 7381 80.6% B 0.201s 6691 73.1% B 0.232s 5892 64.4% B 0.262s 4980 54.4% B 0.292s 4056 44.3% B 0.322s 3166 34.6% B 0.353s 2393 26.1% B 0.383s 1701 18.6% B 0.413s 1146 12.5% B 0.443s 699 7.6% B 0.474s 357 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R