STH Recent Preflight: 61282
Executing preflight for 61282 at Sat Aug 29 17:20:44 SAST 2026.
Log can be found in /atlas/obs/03/61282/preflight.dat.
Setting donefile '/atlas/obs/03/61282/preflight_complete.20260829152044.30267' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260829152044.30267.
Sat Aug 29 17:20:44 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Aug 29 17:20:44 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [5409012f-5e85-46cc-b4a1-9ff3f91b9cad;1800]
Sat Aug 29 17:20:44 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat Aug 29 17:20:45 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat Aug 29 17:20:45 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat Aug 29 17:20:45 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Aug 29 17:20:45 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1788016837
OK
Sat Aug 29 17:20:45 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Aug 29 17:20:45 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
Sat Aug 29 17:20:47 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 Aug 29 17:20:47 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Aug 29 17:20:47 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sat Aug 29 15:20:47 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 962 1024 377 1.043 -0.005 0.076
+metbox2.sth.atl .PPS. 1 u 732 1024 377 0.348 -0.053 0.060
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 733 1024 377 23.324 0.141 0.188
+ntp.as3741.net 146.64.58.41 2 u 272 1024 377 22.767 -0.115 0.161
+ntp2.as3741.net 146.64.58.41 2 u 69 1024 377 7.333 -0.116 0.075
+ntp2.inx.net.za 196.21.187.2 2 u 587 1024 377 7.348 0.071 0.433
-ntp5.inx.net.za 210.182.58.253 2 u 985 1024 377 7.514 0.072 0.065
#102.222.156.151 196.21.187.2 2 u 139 1024 377 24.627 0.498 0.365
+ntp2.nog.net.za 80.72.67.48 3 u 644 1024 377 7.561 0.058 0.537
-139.84.231.68 196.21.187.2 2 u 842 1024 377 22.901 0.094 0.852
-ntp8.inx.net.za 210.182.58.253 2 u 291 1024 377 16.928 0.471 0.314
Sat Aug 29 17:20:50 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (4686GB)
200GB available in /atlas/red...OK (7693GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.8T 4.5T 57% /
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 6.1T 7.4T 46% /
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 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/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17292
Sat Aug 29 17:20:50 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 Aug 29 17:20:51 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Sat Aug 29 17:20:51 SAST 2026 [elapsed=7 sec] SERVICES2
Sat Aug 29 17:20:51 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Aug 29 17:20:55 SAST 2026 [elapsed=11 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=1.42e+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
Sat Aug 29 17:24:15 SAST 2026 [elapsed=211 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: 227.62 -29.49, az/alt=324.82 +86.49 idle(e) IDLE
Sat Aug 29 17:25:06 SAST 2026 [elapsed=262 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Aug 29 17:25:25 SAST 2026 [elapsed=281 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Sat Aug 29 17:25:25 SAST 2026 [elapsed=281 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (5 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.7C)
Checking CCD plane: Z0=+1720.00 DZDX=-883.00 DZDY=+2637.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Aug 29 17:25:25 SAST 2026 [elapsed=281 sec] WEATHER
status weather: C+ W 10.8C 50% 37/50kph@300 DP6.4C/-153C/d IDLE
...OK
Sat Aug 29 17:25:26 SAST 2026 [elapsed=282 sec] MET
status...OK
met: c=Y o=N Ro3h Cx4h Wo3h Ho16d To72d Do37d wait C IDLE
Sat Aug 29 17:25:26 SAST 2026 [elapsed=282 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Aug 29 17:25:26 SAST 2026 [elapsed=282 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 256.53 -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 106 1.2%
A 0.081s 390 4.3%
A 0.111s 734 8.0%
A 0.142s 1190 13.0%
A 0.172s 1783 19.5%
A 0.202s 2468 27.0%
A 0.233s 3258 35.6%
A 0.263s 4163 45.5%
A 0.293s 5116 55.9%
A 0.323s 5989 65.4%
A 0.354s 6780 74.1%
A 0.384s 7459 81.5%
A 0.414s 8016 87.6%
A 0.445s 8478 92.6%
A 0.475s 8801 96.1%
A 0.505s 9028 98.6%
A 0.536s 9153 100.0%
B 0.020s 1 0.0%
B 0.050s 95 1.0%
B 0.081s 382 4.2%
B 0.111s 725 7.9%
B 0.141s 1197 13.1%
B 0.172s 1777 19.4%
B 0.202s 2467 26.9%
B 0.232s 3257 35.6%
B 0.263s 4165 45.5%
B 0.293s 5102 55.7%
B 0.323s 5991 65.4%
B 0.353s 6775 74.0%
B 0.384s 7436 81.2%
B 0.414s 8011 87.5%
B 0.444s 8457 92.4%
B 0.475s 8797 96.1%
B 0.505s 9034 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8772 95.8%
A 0.111s 8416 91.9%
A 0.141s 7968 87.0%
A 0.172s 7373 80.5%
A 0.202s 6694 73.1%
A 0.232s 5898 64.4%
A 0.262s 4982 54.4%
A 0.293s 4043 44.2%
A 0.323s 3166 34.6%
A 0.353s 2377 26.0%
A 0.383s 1708 18.7%
A 0.414s 1147 12.5%
A 0.444s 699 7.6%
A 0.474s 354 3.9%
A 0.504s 129 1.4%
A 0.535s 14 0.2%
A 0.565s -6 0.0%
B 0.020s 9146 99.9%
B 0.050s 9033 98.7%
B 0.081s 8774 95.8%
B 0.111s 8425 92.0%
B 0.142s 7957 86.9%
B 0.172s 7380 80.6%
B 0.202s 6694 73.1%
B 0.232s 5896 64.4%
B 0.263s 4984 54.4%
B 0.293s 4053 44.3%
B 0.323s 3163 34.6%
B 0.353s 2383 26.0%
B 0.384s 1712 18.7%
B 0.414s 1140 12.5%
B 0.444s 698 7.6%
B 0.475s 356 3.9%
B 0.505s 127 1.4%
B 0.535s 11 0.1%
B 0.565s -5 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 0.536 seconds.
Shutter B opened to 99.9 percent in 0.535 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=1.05e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9241 IDLE
Sat Aug 29 17:26:07 SAST 2026 [elapsed=323 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
taking preflight exposures:
acam...OK
acam image:
122M Aug 29 17:26 /atlas/obs/03a/61282/03a61282e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Aug 29 17:26:29 SAST 2026 [elapsed=345 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (39 seconds old)
OTA humidity level...OK (21%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Aug 29 17:26:29 SAST 2026 [elapsed=345 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61281.64340384|info|galildriver|using focus model: foc=9187+(4.30)*15.6+(-0.40)*60.2=9230.0
61281.64340920|info|galildriver|o 2 IN | cass: 3040909 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54007637 9241 um b=8f M [focus]
61281.64341736|info|galildriver|o 2 IN | cass: 3040905 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005260 9229 um b=0f [cmd]
bestfocus for o...OK
Sat Aug 29 17:26:32 SAST 2026 [elapsed=348 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Aug 29 17:26:58 SAST 2026 [elapsed=374 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 Aug 29 17:27:00 SAST 2026 [elapsed=376 sec] NOTICES: det_dzdx=-883 is outside range +-250 from -558; det_dzdy=2637 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 Aug 29 17:27:00 SAST 2026 [elapsed=376 sec] Happy observing!
Sat Aug 29 17:27:00 SAST 2026 [elapsed=376 sec] Preflight took 376 seconds to complete.
Sat Aug 29 17:27:00 SAST 2026 [elapsed=376 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 376 4.1% A 0.111s 722 7.9% A 0.141s 1180 12.9% A 0.171s 1762 19.2% A 0.201s 2440 26.7% A 0.232s 3240 35.4% A 0.262s 4144 45.3% A 0.292s 5073 55.4% A 0.322s 5970 65.2% A 0.353s 6752 73.8% A 0.383s 7413 81.0% A 0.413s 7972 87.1% A 0.443s 8431 92.1% A 0.473s 8775 95.9% A 0.504s 9015 98.5% A 0.534s 9134 99.8% A 0.564s 9154 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 1202 13.1% B 0.171s 1774 19.4% B 0.201s 2464 26.9% B 0.232s 3268 35.7% B 0.262s 4167 45.5% B 0.292s 5104 55.8% B 0.322s 5989 65.4% B 0.352s 6770 74.0% B 0.383s 7440 81.3% B 0.413s 8000 87.4% B 0.443s 8443 92.2% B 0.473s 8796 96.1% B 0.503s 9017 98.5% B 0.534s 9136 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9057 98.9% A 0.081s 8788 96.0% A 0.111s 8434 92.1% A 0.141s 7976 87.1% A 0.171s 7401 80.8% A 0.202s 6716 73.4% A 0.232s 5922 64.7% A 0.262s 5013 54.8% A 0.292s 4068 44.4% A 0.323s 3194 34.9% A 0.353s 2409 26.3% A 0.383s 1731 18.9% A 0.413s 1163 12.7% A 0.444s 706 7.7% A 0.474s 367 4.0% A 0.504s 130 1.4% A 0.534s 14 0.2% A 0.565s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9025 98.6% B 0.081s 8780 95.9% B 0.111s 8435 92.1% B 0.141s 7968 87.0% B 0.171s 7397 80.8% B 0.202s 6712 73.3% B 0.232s 5920 64.7% B 0.262s 5011 54.7% B 0.292s 4082 44.6% B 0.322s 3188 34.8% B 0.353s 2417 26.4% B 0.383s 1725 18.8% B 0.413s 1161 12.7% B 0.443s 712 7.8% B 0.474s 374 4.1% B 0.504s 143 1.6% B 0.534s 18 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R