STH Recent Preflight: 61256
Executing preflight for 61256 at Mon Aug 3 17:04:01 SAST 2026.
Log can be found in /atlas/obs/03/61256/preflight.dat.
Setting donefile '/atlas/obs/03/61256/preflight_complete.20260803150401.4595' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260803150401.4595.
Mon Aug 3 17:04:01 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Aug 3 17:04:01 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [5e93bc79-e888-4aae-b7e1-65cf9ebbb07f;1800]
Mon Aug 3 17:04:01 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 ON redLED
Mon Aug 3 17:04:02 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Aug 3 17:04:02 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Mon Aug 3 17:04:02 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Aug 3 17:04:02 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1785769433
OK
Mon Aug 3 17:04:02 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Aug 3 17:04:02 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 3 17:04:04 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 3 17:04:04 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Aug 3 17:04:04 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Mon Aug 3 15:04:04 UTC 2026
met: 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 647 1024 377 0.974 -0.014 0.032
*metbox2.sth.atl .PPS. 1 u 626 1024 377 0.323 -0.008 0.034
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
#zibbi.ngei.csir 196.21.187.2 2 u 19 1024 377 23.327 -1.053 0.485
-ntp.as3741.net 146.64.58.41 2 u 546 1024 377 22.940 -0.082 0.394
-ntp2.as3741.net 129.134.28.123 2 u 250 1024 377 7.334 -0.032 0.168
-196.10.54.57 210.182.58.253 2 u 862 1024 377 8.047 0.283 0.318
-196.10.54.58 196.21.187.2 2 u 874 1024 377 7.554 -0.061 0.079
-102.222.156.151 196.21.187.2 2 u 838 1024 377 23.341 -0.188 0.156
+ntp2.nog.net.za 80.72.67.48 3 u 633 1024 377 7.504 0.034 0.052
-139.84.231.68 196.21.187.2 2 u 940 1024 377 22.789 -0.041 0.069
-196.49.100.58 183.3.52.101 2 u 985 1024 377 16.830 -0.249 0.921
Mon Aug 3 17:04:19 SAST 2026 [elapsed=18 sec] DISKS
200GB available in /atlas/obs...OK (5884GB)
200GB available in /atlas/red...OK (8428GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.6T 5.7T 46% /
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 5.4T 8.1T 40% /
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 736G 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 3 17:04:20 SAST 2026 [elapsed=19 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 3 17:04:20 SAST 2026 [elapsed=19 sec] Disabling mount tracking.
Mon Aug 3 17:04:20 SAST 2026 [elapsed=19 sec] SERVICES2
Mon Aug 3 17:04:20 SAST 2026 [elapsed=19 sec] CHILLER
status...OK
chiller: 3.1/3.0C ? chiller=ON dryer=? IDLE
Mon Aug 3 17:04:24 SAST 2026 [elapsed=23 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= 932kB time=00:00:29.82 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/OPEN (0%) IDLE
Mon Aug 3 17:07:39 SAST 2026 [elapsed=218 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: 198.00 -29.49, az/alt=324.73 +86.49 idle(e) IDLE
Mon Aug 3 17:09:11 SAST 2026 [elapsed=310 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Aug 3 17:09:31 SAST 2026 [elapsed=330 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Mon Aug 3 17:09:31 SAST 2026 [elapsed=330 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.1C)
Checking CCD plane: Z0=+1734.00 DZDX=-874.00 DZDY=+2979.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Aug 3 17:09:31 SAST 2026 [elapsed=330 sec] WEATHER
status weather: clear 17.3C 29% 26/30kph@46 DP16.7C/-32C/d IDLE
...OK
Mon Aug 3 17:09:32 SAST 2026 [elapsed=331 sec] MET
status...OK
met: c=N o=Y Ro4d Co4d Wo14d Ho3d To46d Do11d IDLE
Mon Aug 3 17:09:32 SAST 2026 [elapsed=331 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Aug 3 17:09:32 SAST 2026 [elapsed=331 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 226.91 -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 7 0.1%
A 0.051s 108 1.2%
A 0.081s 392 4.3%
A 0.111s 733 8.0%
A 0.142s 1191 13.0%
A 0.172s 1783 19.5%
A 0.202s 2465 26.9%
A 0.233s 3261 35.6%
A 0.263s 4164 45.5%
A 0.293s 5115 55.9%
A 0.323s 5992 65.5%
A 0.354s 6779 74.1%
A 0.384s 7439 81.3%
A 0.414s 8000 87.4%
A 0.444s 8465 92.5%
A 0.475s 8790 96.0%
A 0.505s 9022 98.6%
A 0.535s 9151 100.0%
B 0.020s 1 0.0%
B 0.050s 90 1.0%
B 0.081s 373 4.1%
B 0.111s 713 7.8%
B 0.141s 1180 12.9%
B 0.171s 1757 19.2%
B 0.202s 2442 26.7%
B 0.232s 3232 35.3%
B 0.262s 4136 45.2%
B 0.292s 5073 55.4%
B 0.323s 5965 65.2%
B 0.353s 6753 73.8%
B 0.383s 7414 81.0%
B 0.414s 7992 87.3%
B 0.444s 8443 92.2%
B 0.474s 8786 96.0%
B 0.505s 9022 98.6%
B 0.535s 9142 99.9%
B 0.565s 9161 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9064 99.0%
A 0.081s 8772 95.8%
A 0.111s 8426 92.0%
A 0.141s 7986 87.2%
A 0.171s 7393 80.8%
A 0.202s 6714 73.3%
A 0.232s 5926 64.7%
A 0.262s 5013 54.8%
A 0.292s 4071 44.5%
A 0.323s 3196 34.9%
A 0.353s 2402 26.2%
A 0.383s 1726 18.9%
A 0.413s 1166 12.7%
A 0.444s 711 7.8%
A 0.474s 361 3.9%
A 0.504s 137 1.5%
A 0.534s 15 0.2%
A 0.565s -8 0.0%
B 0.020s 9145 99.9%
B 0.050s 9039 98.7%
B 0.081s 8782 95.9%
B 0.111s 8436 92.2%
B 0.141s 7973 87.1%
B 0.172s 7380 80.6%
B 0.202s 6716 73.4%
B 0.232s 5924 64.7%
B 0.262s 4984 54.4%
B 0.293s 4079 44.6%
B 0.323s 3166 34.6%
B 0.353s 2382 26.0%
B 0.384s 1713 18.7%
B 0.414s 1141 12.5%
B 0.444s 709 7.7%
B 0.474s 367 4.0%
B 0.504s 134 1.5%
B 0.535s 15 0.2%
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 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 0.565 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=1.01e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9201 IDLE
Mon Aug 3 17:10:09 SAST 2026 [elapsed=368 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:
123M Aug 3 17:10 /atlas/obs/03a/61256/03a61256e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Aug 3 17:10:31 SAST 2026 [elapsed=390 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (12 seconds old)
OTA humidity level...OK (17%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Aug 3 17:10:31 SAST 2026 [elapsed=390 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61255.63231632|info|galildriver|using focus model: foc=9187+(4.30)*18.3+(-0.40)*60.2=9241.6
61255.63232168|info|galildriver|o 2 IN | cass: 3040918 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53999746 9202 um b=8f M [focus]
61255.63232740|info|galildriver|o 2 IN | cass: 3040918 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53999750 9202 um b=8f M [focus]
61255.63233078|info|galildriver|o 2 IN | cass: 3040925 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53999714 9202 um b=8f M [focus]
61255.63233895|info|galildriver|o 2 IN | cass: 3040916 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53999750 9202 um b=0f [cmd]
bestfocus for o...OK
Mon Aug 3 17:10:34 SAST 2026 [elapsed=393 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Aug 3 17:11:00 SAST 2026 [elapsed=419 sec] Disabling mount tracking.
Waiting on the mount ... done.
Turning tracking off ... done.
Waiting on the mount ... done.
Recheck mount status ... done.
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 OFF redLED
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 2 OFF whiteLED
Mon Aug 3 17:11:02 SAST 2026 [elapsed=421 sec] NOTICES: det_dzdx=-874 is outside range +-250 from -558; det_dzdy=2979 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 3 17:11:02 SAST 2026 [elapsed=421 sec] Happy observing!
Mon Aug 3 17:11:02 SAST 2026 [elapsed=421 sec] Preflight took 421 seconds to complete.
Mon Aug 3 17:11:02 SAST 2026 [elapsed=421 sec] STARTING CLEANUP
Turning off LEDs
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 OFF redLED
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
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 113 1.2% A 0.081s 387 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1783 19.5% A 0.202s 2465 26.9% A 0.232s 3267 35.7% A 0.262s 4174 45.6% A 0.292s 5103 55.7% A 0.323s 5998 65.5% A 0.353s 6775 74.0% A 0.383s 7433 81.2% A 0.414s 8006 87.5% A 0.444s 8456 92.4% A 0.474s 8792 96.0% A 0.504s 9028 98.6% A 0.535s 9137 99.8% A 0.565s 9152 100.0% B 0.020s 2 0.0% B 0.050s 119 1.3% B 0.081s 380 4.2% B 0.111s 727 7.9% B 0.141s 1201 13.1% B 0.171s 1773 19.4% B 0.201s 2466 26.9% B 0.232s 3269 35.7% B 0.262s 4168 45.5% B 0.292s 5101 55.7% B 0.322s 5988 65.4% B 0.353s 6773 74.0% B 0.383s 7441 81.3% B 0.413s 8000 87.4% B 0.443s 8456 92.4% B 0.474s 8795 96.1% B 0.504s 9023 98.6% B 0.534s 9139 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9149 99.9% A 0.051s 9046 98.8% A 0.081s 8773 95.8% A 0.111s 8418 92.0% A 0.141s 7955 86.9% A 0.171s 7377 80.6% A 0.202s 6689 73.1% A 0.232s 5891 64.4% A 0.262s 4978 54.4% A 0.292s 4036 44.1% A 0.323s 3163 34.6% A 0.353s 2385 26.1% A 0.383s 1713 18.7% A 0.414s 1145 12.5% A 0.444s 694 7.6% A 0.474s 358 3.9% A 0.505s 124 1.4% A 0.535s 14 0.2% A 0.565s 2 0.0% B 0.020s 9145 99.9% B 0.050s 9020 98.5% B 0.081s 8773 95.8% B 0.111s 8424 92.0% B 0.141s 7957 86.9% B 0.171s 7382 80.6% B 0.201s 6692 73.1% B 0.232s 5894 64.4% B 0.262s 4981 54.4% B 0.292s 4057 44.3% B 0.322s 3166 34.6% B 0.353s 2394 26.2% B 0.383s 1702 18.6% B 0.413s 1147 12.5% B 0.443s 713 7.8% B 0.473s 366 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.564s 2 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R