STH Recent Preflight: 61253
Executing preflight for 61253 at Fri Jul 31 17:02:07 SAST 2026.
Log can be found in /atlas/obs/03/61253/preflight.dat.
Setting donefile '/atlas/obs/03/61253/preflight_complete.20260731150207.4595' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260731150207.4595.
Fri Jul 31 17:02:07 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Jul 31 17:02:07 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [75cd07d8-913f-44d4-bebb-b12a32fb7011;1800]
Fri Jul 31 17:02:07 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
Fri Jul 31 17:02:08 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Fri Jul 31 17:02:08 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Fri Jul 31 17:02:08 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Jul 31 17:02:08 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1785510127
OK
Fri Jul 31 17:02:08 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Jul 31 17:02:08 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 Jul 31 17:02:10 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 Jul 31 17:02:10 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Jul 31 17:02:10 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Fri Jul 31 15:02:10 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 347 1024 377 1.006 0.024 0.121
+metbox2.sth.atl .PPS. 1 u 531 512 377 0.274 -0.026 0.104
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 196.21.187.2 2 u 305 1024 377 24.807 0.033 0.895
-ntp.as3741.net 146.64.58.41 2 u 105 1024 377 23.489 -0.416 0.123
-ntp2.as3741.net 129.134.28.123 2 u 143 1024 375 7.272 -0.738 0.029
-ntp2.inx.net.za 210.182.58.253 2 u 287 1024 377 7.276 0.011 0.125
-ntp5.inx.net.za 196.21.187.2 2 u 166 1024 377 7.505 -0.019 0.099
#102.222.156.151 196.21.187.2 2 u 229 1024 365 25.479 -0.616 0.386
+ntp2.nog.net.za 80.72.67.48 3 u 398 512 377 7.537 0.004 0.266
-139.84.231.68 196.21.187.2 2 u 181 1024 377 24.230 -0.273 0.454
-ntp8.inx.net.za 210.182.58.253 2 u 58 1024 377 16.868 0.964 0.833
Fri Jul 31 17:02:12 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6017GB)
200GB available in /atlas/red...OK (8995GB)
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/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 4.8T 8.6T 36% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.7T 12T 13% /
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
Fri Jul 31 17:02:12 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
Fri Jul 31 17:02:12 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Fri Jul 31 17:02:13 SAST 2026 [elapsed=6 sec] SERVICES2
Fri Jul 31 17:02:13 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Jul 31 17:02:17 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= 908kB time=00:00:29.05 bitrate= 256.0kbits/s speed=1.43e+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 Jul 31 17:05:31 SAST 2026 [elapsed=204 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: 194.50 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Fri Jul 31 17:07:01 SAST 2026 [elapsed=294 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Jul 31 17:07:20 SAST 2026 [elapsed=313 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Fri Jul 31 17:07:20 SAST 2026 [elapsed=313 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 (-54.8C)
Checking CCD plane: Z0=+1686.00 DZDX=-870.00 DZDY=+1859.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri Jul 31 17:07:20 SAST 2026 [elapsed=313 sec] WEATHER
status weather: clear 11.4C 33% 20/24kph@117 DP15.3C/-16C/d IDLE
...OK
Fri Jul 31 17:07:20 SAST 2026 [elapsed=313 sec] MET
status...OK
met: c=N o=Y Ro1d Co1d Wo11d Ho15h To43d Do8d IDLE
Fri Jul 31 17:07:20 SAST 2026 [elapsed=313 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Jul 31 17:07:21 SAST 2026 [elapsed=314 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 223.41 -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 9 0.1%
A 0.050s 114 1.2%
A 0.081s 401 4.4%
A 0.111s 746 8.1%
A 0.141s 1208 13.2%
A 0.172s 1802 19.7%
A 0.202s 2490 27.2%
A 0.232s 3287 35.9%
A 0.263s 4193 45.8%
A 0.293s 5145 56.2%
A 0.323s 6018 65.7%
A 0.353s 6804 74.3%
A 0.384s 7457 81.5%
A 0.414s 8017 87.6%
A 0.444s 8479 92.6%
A 0.475s 8801 96.1%
A 0.505s 9028 98.6%
A 0.535s 9156 100.0%
B 0.020s 2 0.0%
B 0.050s 105 1.1%
B 0.081s 392 4.3%
B 0.111s 740 8.1%
B 0.141s 1214 13.3%
B 0.171s 1797 19.6%
B 0.202s 2490 27.2%
B 0.232s 3285 35.9%
B 0.262s 4196 45.8%
B 0.292s 5131 56.1%
B 0.323s 6021 65.8%
B 0.353s 6797 74.3%
B 0.383s 7455 81.4%
B 0.413s 8026 87.7%
B 0.444s 8468 92.5%
B 0.474s 8807 96.2%
B 0.504s 9035 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9066 99.0%
A 0.081s 8773 95.8%
A 0.111s 8415 91.9%
A 0.141s 7970 87.1%
A 0.172s 7372 80.5%
A 0.202s 6692 73.1%
A 0.232s 5897 64.4%
A 0.263s 4982 54.4%
A 0.293s 4045 44.2%
A 0.323s 3166 34.6%
A 0.354s 2376 26.0%
A 0.384s 1707 18.6%
A 0.414s 1146 12.5%
A 0.444s 698 7.6%
A 0.475s 354 3.9%
A 0.505s 130 1.4%
A 0.535s 13 0.1%
A 0.566s -8 0.0%
B 0.020s 9144 99.9%
B 0.050s 9026 98.6%
B 0.081s 8764 95.7%
B 0.111s 8411 91.9%
B 0.141s 7941 86.7%
B 0.172s 7360 80.4%
B 0.202s 6672 72.9%
B 0.232s 5869 64.1%
B 0.262s 4954 54.1%
B 0.293s 4021 43.9%
B 0.323s 3136 34.3%
B 0.353s 2361 25.8%
B 0.383s 1692 18.5%
B 0.414s 1123 12.3%
B 0.444s 685 7.5%
B 0.474s 346 3.8%
B 0.505s 122 1.3%
B 0.535s 11 0.1%
B 0.565s -6 0.0%
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 0.535 seconds.
Shutter B opened to 99.9 percent in 0.535 seconds.
Shutter A closed to 0.0 percent in 0.566 seconds.
Shutter B closed to 0.0 percent in 0.565 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.09e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9237 IDLE
Fri Jul 31 17:08:00 SAST 2026 [elapsed=353 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 Jul 31 17:08 /atlas/obs/03a/61253/03a61253e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Jul 31 17:08:23 SAST 2026 [elapsed=376 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (64 seconds old)
OTA humidity level...OK (17%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Jul 31 17:08:23 SAST 2026 [elapsed=376 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61252.63082654|info|galildriver|using focus model: foc=9187+(4.30)*14.1+(-0.40)*60.2=9223.5
61252.63083189|info|galildriver|o 2 IN | cass: 3043439 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006933 9238 um b=8f M [focus]
61252.63083761|info|galildriver|o 2 IN | cass: 3043446 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006924 9238 um b=8f M [focus]
61252.63084099|info|galildriver|o 2 IN | cass: 3043447 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006917 9238 um b=8f M [focus]
61252.63084915|info|galildriver|o 2 IN | cass: 3043441 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006931 9238 um b=0f [cmd]
bestfocus for o...OK
Fri Jul 31 17:08:26 SAST 2026 [elapsed=379 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Jul 31 17:08:52 SAST 2026 [elapsed=405 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
Fri Jul 31 17:08:54 SAST 2026 [elapsed=407 sec] NOTICES: det_dzdx=-870 is outside range +-250 from -558; det_dzdy=1859 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 Jul 31 17:08:54 SAST 2026 [elapsed=407 sec] Happy observing!
Fri Jul 31 17:08:54 SAST 2026 [elapsed=407 sec] Preflight took 407 seconds to complete.
Fri Jul 31 17:08:54 SAST 2026 [elapsed=407 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 0.051s 114 1.2% A 0.081s 385 4.2% A 0.111s 735 8.0% A 0.141s 1198 13.1% A 0.171s 1783 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4175 45.6% A 0.292s 5104 55.8% A 0.322s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7433 81.2% A 0.413s 8005 87.4% A 0.444s 8458 92.4% A 0.474s 8792 96.0% A 0.504s 9028 98.6% A 0.534s 9138 99.8% A 0.565s 9154 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1772 19.4% B 0.202s 2466 26.9% B 0.232s 3268 35.7% B 0.262s 4169 45.5% B 0.293s 5103 55.7% B 0.323s 5987 65.4% B 0.353s 6770 74.0% B 0.383s 7440 81.3% B 0.414s 8002 87.4% B 0.444s 8455 92.4% B 0.474s 8795 96.1% B 0.504s 9022 98.6% B 0.534s 9138 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9049 98.9% A 0.081s 8778 95.9% A 0.111s 8422 92.0% A 0.141s 7958 86.9% A 0.172s 7380 80.6% A 0.202s 6692 73.1% A 0.232s 5894 64.4% A 0.263s 4982 54.4% A 0.293s 4039 44.1% A 0.323s 3166 34.6% A 0.353s 2387 26.1% A 0.384s 1710 18.7% A 0.414s 1147 12.5% A 0.444s 693 7.6% A 0.474s 358 3.9% A 0.504s 125 1.4% A 0.535s 13 0.1% A 0.565s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9019 98.5% B 0.081s 8772 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.171s 7379 80.6% B 0.202s 6688 73.1% B 0.232s 5892 64.4% B 0.262s 4981 54.4% B 0.292s 4055 44.3% B 0.323s 3163 34.6% B 0.353s 2392 26.1% B 0.383s 1703 18.6% B 0.413s 1148 12.5% B 0.444s 700 7.6% B 0.474s 357 3.9% B 0.504s 134 1.5% B 0.535s 15 0.2% B 0.565s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R