STH Recent Preflight: 61338
Executing preflight for 61338 at Sat Oct 24 17:58:21 SAST 2026.
Log can be found in /atlas/obs/03/61338/preflight.dat.
Setting donefile '/atlas/obs/03/61338/preflight_complete.20261024155821.3532' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261024155821.3532.
Sat Oct 24 17:58:21 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Oct 24 17:58:21 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [671f8828-cb45-497f-a570-34378cda65ad;1800]
Sat Oct 24 17:58:21 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat Oct 24 17:58:22 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat Oct 24 17:58:23 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat Oct 24 17:58:23 SAST 2026 [elapsed=2 sec] Skipping auxcam.
error: unknown module: vent
Sat Oct 24 17:58:23 SAST 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1792857497
OK
Sat Oct 24 17:58:23 SAST 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Sat Oct 24 17:58:23 SAST 2026 [elapsed=2 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
Sat Oct 24 17:58:24 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
Sat Oct 24 17:58:25 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Sat Oct 24 17:58:25 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Sat Oct 24 15:58:25 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 928 1024 377 0.982 -0.041 0.140
-metbox2.sth.atl .PPS. 1 u 672 1024 377 0.298 0.023 0.071
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 961 1024 377 23.300 -0.030 0.725
-ntp.as3741.net 210.182.58.253 2 u 363 1024 377 22.678 -0.007 0.928
-ntp2.as3741.net 146.64.58.41 2 u 634 1024 377 7.167 0.093 0.044
-ntp2.inx.net.za 183.3.52.101 2 u 890 1024 377 7.210 0.111 0.081
+ntp2.nog.net.za 80.72.67.48 3 u 112 1024 377 7.571 0.128 0.108
-139.84.231.68 ( 196.21.187.2 2 u 751 1024 377 22.882 -0.021 0.035
-ntp7.inx.net.za 210.182.58.253 2 u 4 1024 377 16.504 0.448 0.193
*tick.sanren.ac. .TC. 1 u 61 1024 377 23.118 0.092 0.077
Sat Oct 24 17:58:26 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6446GB)
200GB available in /atlas/red...OK (9725GB)
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/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 4.1T 9.3T 31% /
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
Sat Oct 24 17:58:27 SAST 2026 [elapsed=6 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
Sat Oct 24 17:58:27 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Sat Oct 24 17:58:27 SAST 2026 [elapsed=6 sec] SERVICES2
Sat Oct 24 17:58:27 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Oct 24 17:58:31 SAST 2026 [elapsed=10 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= 934kB time=00:00:29.88 bitrate= 256.0kbits/s speed=1.54e+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/OPEN (0%) IDLE
Sat Oct 24 18:01:04 SAST 2026 [elapsed=163 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: 292.04 -29.49, az/alt=324.75 +86.49 idle(e) IDLE
Sat Oct 24 18:01:55 SAST 2026 [elapsed=214 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Oct 24 18:02:33 SAST 2026 [elapsed=252 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.8 IDLE
Sat Oct 24 18:02:33 SAST 2026 [elapsed=252 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 (-53.8C)
Checking CCD plane: Z0=+1771.00 DZDX=-927.00 DZDY=+3809.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Oct 24 18:02:34 SAST 2026 [elapsed=253 sec] WEATHER
status weather: W 21.8C 37% 34/39kph@303 DP14.5C/-33C/d IDLE
...OK
Sat Oct 24 18:02:34 SAST 2026 [elapsed=253 sec] MET
status...OK
met: c=N o=Y Ro18d Co1d Wo1d Ho2d To30d Do3d IDLE
Sat Oct 24 18:02:34 SAST 2026 [elapsed=253 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Oct 24 18:02:34 SAST 2026 [elapsed=253 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 320.96 -14.64, az/alt=59.91 +60.05 tracking(w) IDLE 0s
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 7 0.1%
A 0.050s 102 1.1%
A 0.081s 394 4.3%
A 0.111s 735 8.0%
A 0.142s 1188 13.0%
A 0.172s 1786 19.5%
A 0.202s 2466 26.9%
A 0.233s 3258 35.6%
A 0.263s 4166 45.5%
A 0.294s 5144 56.2%
A 0.324s 6018 65.7%
A 0.354s 6803 74.3%
A 0.385s 7458 81.5%
A 0.415s 8016 87.6%
A 0.446s 8479 92.6%
A 0.476s 8799 96.1%
A 0.506s 9026 98.6%
A 0.537s 9154 100.0%
B 0.020s 2 0.0%
B 0.051s 106 1.2%
B 0.081s 396 4.3%
B 0.111s 752 8.2%
B 0.142s 1233 13.5%
B 0.172s 1819 19.9%
B 0.202s 2514 27.5%
B 0.233s 3313 36.2%
B 0.263s 4229 46.2%
B 0.294s 5160 56.4%
B 0.324s 6049 66.1%
B 0.354s 6819 74.5%
B 0.385s 7475 81.7%
B 0.415s 8043 87.9%
B 0.445s 8479 92.6%
B 0.476s 8823 96.4%
B 0.506s 9042 98.8%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9063 99.0%
A 0.081s 8771 95.8%
A 0.111s 8413 91.9%
A 0.142s 7967 87.0%
A 0.172s 7373 80.5%
A 0.202s 6669 72.9%
A 0.233s 5869 64.1%
A 0.263s 4952 54.1%
A 0.293s 4013 43.8%
A 0.324s 3138 34.3%
A 0.354s 2354 25.7%
A 0.385s 1691 18.5%
A 0.415s 1131 12.4%
A 0.445s 686 7.5%
A 0.476s 347 3.8%
A 0.506s 124 1.4%
A 0.536s 11 0.1%
A 0.567s -5 0.0%
B 0.020s 9146 99.9%
B 0.051s 9031 98.7%
B 0.081s 8770 95.8%
B 0.111s 8422 92.0%
B 0.142s 7954 86.9%
B 0.172s 7379 80.6%
B 0.202s 6694 73.1%
B 0.233s 5896 64.4%
B 0.263s 4955 54.1%
B 0.293s 4022 43.9%
B 0.323s 3137 34.3%
B 0.354s 2360 25.8%
B 0.384s 1693 18.5%
B 0.414s 1126 12.3%
B 0.445s 686 7.5%
B 0.475s 347 3.8%
B 0.505s 123 1.3%
B 0.536s 12 0.1%
B 0.566s -4 0.0%
A 0 0.0mm 15 N F R | B -4 -0.1mm 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 0.567 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=1.05e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9314 IDLE
Sat Oct 24 18:03:11 SAST 2026 [elapsed=290 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.8 IDLE
taking preflight exposures:
acam...OK
acam image:
127M Oct 24 18:03 /atlas/obs/03a/61338/03a61338e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Oct 24 18:03:34 SAST 2026 [elapsed=313 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (36 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Oct 24 18:03:34 SAST 2026 [elapsed=313 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61337.66914837|info|galildriver|using focus model: foc=9187+(4.30)*21.4+(-0.40)*60.2=9254.9
61337.66915373|info|galildriver|o 2 IN | cass: 3033698 15.17 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54022294 9315 um b=8f M [focus]
61337.66915946|info|galildriver|o 2 IN | cass: 3033699 15.17 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54022292 9315 um b=8f M [focus]
61337.66916285|info|galildriver|o 2 IN | cass: 3033696 15.17 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54022311 9315 um b=8f M [focus]
61337.66917104|info|galildriver|o 2 IN | cass: 3033704 15.17 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54022295 9315 um b=0f [cmd]
bestfocus for o...OK
Sat Oct 24 18:03:36 SAST 2026 [elapsed=315 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Oct 24 18:04:02 SAST 2026 [elapsed=341 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
Sat Oct 24 18:04:03 SAST 2026 [elapsed=342 sec] NOTICES: det_dzdx=-927 is outside range +-250 from -558; det_dzdy=3809 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sat Oct 24 18:04:03 SAST 2026 [elapsed=342 sec] Happy observing!
Sat Oct 24 18:04:03 SAST 2026 [elapsed=342 sec] Preflight took 342 seconds to complete.
Sat Oct 24 18:04:03 SAST 2026 [elapsed=342 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 108 1.2% A 0.081s 374 4.1% A 0.111s 723 7.9% A 0.141s 1181 12.9% A 0.171s 1761 19.2% A 0.202s 2442 26.7% A 0.232s 3239 35.4% A 0.262s 4143 45.3% A 0.292s 5074 55.4% A 0.323s 5970 65.2% A 0.353s 6752 73.8% A 0.383s 7413 81.0% A 0.414s 7988 87.3% A 0.444s 8445 92.3% A 0.474s 8785 96.0% A 0.504s 9021 98.5% A 0.535s 9137 99.8% A 0.565s 9154 100.0% B 0.020s 1 0.0% B 0.050s 106 1.2% B 0.081s 370 4.0% B 0.111s 715 7.8% B 0.141s 1185 12.9% B 0.171s 1751 19.1% B 0.202s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4137 45.2% B 0.292s 5074 55.4% B 0.322s 5959 65.1% B 0.353s 6750 73.7% B 0.383s 7420 81.1% B 0.413s 7969 87.1% B 0.443s 8429 92.1% B 0.474s 8776 95.9% B 0.504s 9012 98.4% B 0.534s 9135 99.8% B 0.564s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9042 98.8% A 0.081s 8778 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.172s 7360 80.4% 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 3167 34.6% A 0.353s 2387 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.444s 692 7.6% A 0.474s 358 3.9% A 0.504s 124 1.4% A 0.534s 14 0.2% A 0.564s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9017 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7952 86.9% B 0.171s 7378 80.6% B 0.201s 6689 73.1% B 0.232s 5891 64.4% B 0.262s 4979 54.4% B 0.292s 4054 44.3% B 0.322s 3164 34.6% B 0.353s 2393 26.1% B 0.383s 1722 18.8% B 0.413s 1161 12.7% B 0.443s 712 7.8% B 0.474s 364 4.0% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.565s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R