STH Recent Preflight: 61337
Executing preflight for 61337 at Fri Oct 23 17:57:31 SAST 2026.
Log can be found in /atlas/obs/03/61337/preflight.dat.
Setting donefile '/atlas/obs/03/61337/preflight_complete.20261023155731.3532' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261023155731.3532.
Fri Oct 23 17:57:31 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Oct 23 17:57:31 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [aae7085c-d471-4418-99ab-0f8946312a45;1800]
Fri Oct 23 17:57:31 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Fri Oct 23 17:57:32 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Fri Oct 23 17:57:32 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Fri Oct 23 17:57:32 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Oct 23 17:57:32 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1792771050
OK
Fri Oct 23 17:57:32 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Oct 23 17:57:32 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
Fri Oct 23 17:57:34 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
Fri Oct 23 17:57:34 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Oct 23 17:57:34 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Fri Oct 23 15:57:34 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 875 1024 377 1.055 -0.001 0.083
+metbox2.sth.atl .PPS. 1 u 458 1024 377 0.266 0.025 0.083
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 229.179.94.34 2 u 174 1024 377 23.342 1.481 1.409
-ntp.as3741.net 210.182.58.253 2 u 445 1024 377 22.817 -0.263 4.323
-ntp2.as3741.net 146.64.58.41 2 u 760 1024 377 7.218 0.162 0.265
+ntp2.inx.net.za 183.3.52.101 2 u 924 1024 377 7.218 0.082 0.129
+ntp2.nog.net.za 80.72.67.48 3 u 168 1024 377 7.553 -0.002 0.084
+139.84.231.68 ( 196.21.187.2 2 u 782 1024 377 23.006 0.144 0.707
-ntp7.inx.net.za 102.176.229.251 2 u 114 1024 377 16.494 0.245 0.039
+tick.sanren.ac. .TC. 1 u 147 1024 377 23.249 0.062 0.056
Fri Oct 23 17:57:37 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6435GB)
200GB available in /atlas/red...OK (9726GB)
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
Fri Oct 23 17:57:37 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
Fri Oct 23 17:57:37 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Fri Oct 23 17:57:37 SAST 2026 [elapsed=6 sec] SERVICES2
Fri Oct 23 17:57:37 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Oct 23 17:57:41 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= 922kB time=00:00:29.50 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
Fri Oct 23 18:00:13 SAST 2026 [elapsed=162 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: 290.84 -29.49, az/alt=324.74 +86.49 idle(e) IDLE
Fri Oct 23 18:01:04 SAST 2026 [elapsed=213 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Oct 23 18:01:24 SAST 2026 [elapsed=233 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.2 IDLE
Fri Oct 23 18:01:24 SAST 2026 [elapsed=233 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 (-54.2C)
Checking CCD plane: Z0=+1749.00 DZDX=-921.00 DZDY=+3303.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri Oct 23 18:01:24 SAST 2026 [elapsed=233 sec] WEATHER
status weather: C 17.2C 45% 24/32kph@303 DP10.4C/-72C/d IDLE
...OK
Fri Oct 23 18:01:25 SAST 2026 [elapsed=234 sec] MET
status...OK
met: c=N o=Y Ro17d Co21h Wo21h Ho1d To29d Do2d IDLE
Fri Oct 23 18:01:25 SAST 2026 [elapsed=234 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Oct 23 18:01:25 SAST 2026 [elapsed=234 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 319.76 -14.63, 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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 8 0.1%
A 0.051s 109 1.2%
A 0.081s 393 4.3%
A 0.111s 734 8.0%
A 0.142s 1190 13.0%
A 0.172s 1784 19.5%
A 0.202s 2466 26.9%
A 0.232s 3260 35.6%
A 0.263s 4164 45.5%
A 0.293s 5115 55.9%
A 0.323s 5991 65.4%
A 0.354s 6779 74.1%
A 0.384s 7438 81.3%
A 0.414s 8001 87.4%
A 0.444s 8465 92.5%
A 0.474s 8791 96.0%
A 0.505s 9015 98.5%
A 0.535s 9151 100.0%
B 0.020s 1 0.0%
B 0.050s 89 1.0%
B 0.081s 376 4.1%
B 0.111s 713 7.8%
B 0.141s 1181 12.9%
B 0.172s 1758 19.2%
B 0.202s 2440 26.7%
B 0.232s 3232 35.3%
B 0.263s 4137 45.2%
B 0.293s 5072 55.4%
B 0.323s 5963 65.1%
B 0.353s 6752 73.8%
B 0.384s 7415 81.0%
B 0.414s 7994 87.3%
B 0.444s 8442 92.2%
B 0.475s 8787 96.0%
B 0.505s 9022 98.6%
B 0.535s 9141 99.9%
B 0.565s 9160 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9069 99.1%
A 0.081s 8783 95.9%
A 0.111s 8426 92.0%
A 0.141s 7985 87.2%
A 0.171s 7393 80.8%
A 0.202s 6715 73.4%
A 0.232s 5925 64.7%
A 0.262s 5012 54.8%
A 0.292s 4072 44.5%
A 0.323s 3193 34.9%
A 0.353s 2400 26.2%
A 0.383s 1731 18.9%
A 0.413s 1164 12.7%
A 0.443s 711 7.8%
A 0.474s 365 4.0%
A 0.504s 134 1.5%
A 0.534s 15 0.2%
A 0.564s -6 0.0%
B 0.020s 9146 99.9%
B 0.050s 9037 98.7%
B 0.081s 8781 95.9%
B 0.111s 8437 92.2%
B 0.142s 7973 87.1%
B 0.172s 7399 80.8%
B 0.202s 6716 73.4%
B 0.232s 5924 64.7%
B 0.263s 5015 54.8%
B 0.293s 4051 44.3%
B 0.323s 3165 34.6%
B 0.354s 2383 26.0%
B 0.384s 1713 18.7%
B 0.414s 1141 12.5%
B 0.445s 697 7.6%
B 0.475s 356 3.9%
B 0.505s 128 1.4%
B 0.535s 13 0.1%
B 0.566s -4 0.0%
A 0 0.0mm 15 N F R | B -3 -0.1mm 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 0.564 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=1.01e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9293 IDLE
Fri Oct 23 18:02:02 SAST 2026 [elapsed=271 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.2 IDLE
taking preflight exposures:
acam...OK
acam image:
124M Oct 23 18:02 /atlas/obs/03a/61337/03a61337e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Oct 23 18:02:24 SAST 2026 [elapsed=293 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (57 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Oct 23 18:02:24 SAST 2026 [elapsed=293 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61336.66834501|info|galildriver|using focus model: foc=9187+(4.30)*18.8+(-0.40)*60.2=9243.7
61336.66835037|info|galildriver|o 2 IN | cass: 3035609 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54018101 9294 um b=8f M [focus]
61336.66835609|info|galildriver|o 2 IN | cass: 3035610 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54018101 9294 um b=8f M [focus]
61336.66835948|info|galildriver|o 2 IN | cass: 3035612 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54018100 9294 um b=8f M [focus]
61336.66836764|info|galildriver|o 2 IN | cass: 3035610 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54018102 9294 um b=0f [cmd]
bestfocus for o...OK
Fri Oct 23 18:02:27 SAST 2026 [elapsed=296 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Oct 23 18:02:53 SAST 2026 [elapsed=322 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
Fri Oct 23 18:02:54 SAST 2026 [elapsed=323 sec] NOTICES: det_dzdx=-921 is outside range +-250 from -558; det_dzdy=3303 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Fri Oct 23 18:02:54 SAST 2026 [elapsed=323 sec] Happy observing!
Fri Oct 23 18:02:54 SAST 2026 [elapsed=323 sec] Preflight took 323 seconds to complete.
Fri Oct 23 18:02:54 SAST 2026 [elapsed=323 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