STH Recent Preflight: 61356
Executing preflight for 61356 at Wed Nov 11 18:13:56 SAST 2026.
Log can be found in /atlas/obs/03/61356/preflight.dat.
Setting donefile '/atlas/obs/03/61356/preflight_complete.20261111161356.7970' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261111161356.7970.
Wed Nov 11 18:13:56 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Nov 11 18:13:56 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [819f5a5c-41ac-4bd7-9e85-f5c7d8d4d616;1800]
Wed Nov 11 18:13:56 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Nov 11 18:13:57 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Nov 11 18:13:57 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Nov 11 18:13:57 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Nov 11 18:13:57 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1794413632
OK
Wed Nov 11 18:13:57 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Nov 11 18:13:57 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
Wed Nov 11 18:13:59 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
Wed Nov 11 18:13:59 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Nov 11 18:13:59 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Wed Nov 11 16:13:59 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 239 1024 377 1.063 0.086 0.168
+metbox2.sth.atl .PPS. 1 u 862 1024 377 0.272 0.130 0.113
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 613 1024 377 23.351 0.196 0.593
-ntp.as3741.net 210.182.58.253 2 u 893 1024 377 24.262 -0.519 0.970
-ntp2.as3741.net 146.64.58.41 2 u 716 1024 377 7.296 0.359 0.473
-ntp2.inx.net.za 210.182.58.253 2 u 906 1024 377 7.276 0.140 0.249
+ntp2.nog.net.za 80.72.67.48 3 u 588 1024 377 7.567 0.192 0.260
-139.84.231.68 ( 196.21.187.2 2 u 974 1024 377 22.775 0.440 0.900
-ntp7.inx.net.za 196.21.187.2 2 u 4 1024 377 16.401 1.132 0.939
-tick.sanren.ac. .TC. 1 u 898 1024 377 23.270 0.239 0.108
Wed Nov 11 18:14:04 SAST 2026 [elapsed=8 sec] DISKS
200GB available in /atlas/obs...OK (6381GB)
200GB available in /atlas/red...OK (8799GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.2T 6.1T 41% /
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/17292
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
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 5.0T 8.4T 38% /
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 739G 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
Wed Nov 11 18:14:04 SAST 2026 [elapsed=8 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
Wed Nov 11 18:14:05 SAST 2026 [elapsed=9 sec] Disabling mount tracking.
Wed Nov 11 18:14:05 SAST 2026 [elapsed=9 sec] SERVICES2
Wed Nov 11 18:14:05 SAST 2026 [elapsed=9 sec] CHILLER
status...OK
chiller: 2.9/3.0C ? chiller=ON dryer=? IDLE
Wed Nov 11 18:14:09 SAST 2026 [elapsed=13 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 ... conversion FAILED! Bogus AAC file?
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
Wed Nov 11 18:17:14 SAST 2026 [elapsed=198 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: 313.83 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Wed Nov 11 18:18:05 SAST 2026 [elapsed=249 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Nov 11 18:18:25 SAST 2026 [elapsed=269 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.8 IDLE
Wed Nov 11 18:18:25 SAST 2026 [elapsed=269 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (10 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.5C)
Checking CCD plane: Z0=+1788.00 DZDX=-931.00 DZDY=+4214.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Nov 11 18:18:25 SAST 2026 [elapsed=269 sec] WEATHER
status weather: W 23.2C 26% 37/44kph@284 DP19.1C/-35C/d IDLE
...OK
Wed Nov 11 18:18:26 SAST 2026 [elapsed=270 sec] MET
status...OK
met: c=N o=Y Ro36d Co18h Wo4d Ho3d To48d Do11d IDLE
Wed Nov 11 18:18:26 SAST 2026 [elapsed=270 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Nov 11 18:18:26 SAST 2026 [elapsed=270 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 342.75 -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 2 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 0.051s 107 1.2%
A 0.081s 382 4.2%
A 0.111s 724 7.9%
A 0.141s 1189 13.0%
A 0.172s 1783 19.5%
A 0.202s 2466 26.9%
A 0.232s 3261 35.6%
A 0.263s 4163 45.5%
A 0.293s 5078 55.5%
A 0.323s 5968 65.2%
A 0.354s 6785 74.1%
A 0.384s 7434 81.2%
A 0.414s 8002 87.4%
A 0.444s 8469 92.5%
A 0.475s 8786 96.0%
A 0.505s 9018 98.5%
A 0.535s 9149 99.9%
B 0.020s 0 0.0%
B 0.050s 87 1.0%
B 0.081s 376 4.1%
B 0.111s 718 7.8%
B 0.141s 1186 13.0%
B 0.172s 1779 19.4%
B 0.202s 2443 26.7%
B 0.232s 3260 35.6%
B 0.263s 4138 45.2%
B 0.293s 5104 55.8%
B 0.323s 5992 65.5%
B 0.354s 6776 74.0%
B 0.384s 7432 81.2%
B 0.414s 8014 87.5%
B 0.445s 8454 92.4%
B 0.475s 8795 96.1%
B 0.505s 9026 98.6%
B 0.536s 9143 99.9%
B 0.566s 9160 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.050s 9056 98.9%
A 0.081s 8771 95.8%
A 0.111s 8400 91.8%
A 0.141s 7951 86.9%
A 0.172s 7353 80.3%
A 0.202s 6669 72.9%
A 0.232s 5896 64.4%
A 0.262s 4983 54.4%
A 0.293s 4043 44.2%
A 0.323s 3164 34.6%
A 0.353s 2354 25.7%
A 0.383s 1710 18.7%
A 0.414s 1131 12.4%
A 0.444s 698 7.6%
A 0.474s 355 3.9%
A 0.505s 129 1.4%
A 0.535s 14 0.2%
A 0.565s -5 0.0%
B 0.020s 9145 99.9%
B 0.050s 9024 98.6%
B 0.081s 8761 95.7%
B 0.111s 8409 91.9%
B 0.141s 7939 86.7%
B 0.171s 7359 80.4%
B 0.202s 6683 73.0%
B 0.232s 5869 64.1%
B 0.262s 4946 54.0%
B 0.292s 4064 44.4%
B 0.323s 3155 34.5%
B 0.353s 2383 26.0%
B 0.383s 1721 18.8%
B 0.413s 1137 12.4%
B 0.444s 692 7.6%
B 0.474s 360 3.9%
B 0.504s 131 1.4%
B 0.534s 12 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 99.9 percent in 0.535 seconds.
Shutter B opened to 100.0 percent in 0.566 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=1.13e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9258 IDLE
Wed Nov 11 18:19:12 SAST 2026 [elapsed=316 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:
128M Nov 11 18:19 /atlas/obs/03a/61356/03a61356e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Nov 11 18:19:35 SAST 2026 [elapsed=339 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (85 seconds old)
OTA humidity level...OK (2%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Nov 11 18:19:35 SAST 2026 [elapsed=339 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61355.68027428|info|galildriver|using focus model: foc=9187+(4.30)*23.3+(-0.40)*60.2=9263.1
61355.68028044|info|galildriver|o 2 IN | cass: 3031527 15.16 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54010937 9258 um b=8f M [focus]
61355.68029058|info|galildriver|o 2 IN | cass: 3031528 15.16 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54010943 9258 um b=0f [cmd]
bestfocus for o...OK
Wed Nov 11 18:19:37 SAST 2026 [elapsed=341 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Nov 11 18:20:03 SAST 2026 [elapsed=367 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
Wed Nov 11 18:20:04 SAST 2026 [elapsed=368 sec] NOTICES: det_dzdx=-931 is outside range +-250 from -558; det_dzdy=4214 is outside range +-250 from -1915;
Wed Nov 11 18:20:04 SAST 2026 [elapsed=368 sec] WARNINGS: Ash shutter audio conversion to WAV failed (bad AAC file?);
Preflight completed with warnings. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Wed Nov 11 18:20:04 SAST 2026 [elapsed=368 sec] Happy observing!
Wed Nov 11 18:20:04 SAST 2026 [elapsed=368 sec] Preflight took 368 seconds to complete.
Wed Nov 11 18:20:04 SAST 2026 [elapsed=368 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 107 1.2% A 0.081s 375 4.1% A 0.111s 724 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 0.293s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.413s 7987 87.3% A 0.444s 8447 92.3% A 0.474s 8784 96.0% A 0.504s 9021 98.5% A 0.534s 9135 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 104 1.1% B 0.081s 367 4.0% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.172s 1753 19.2% B 0.202s 2442 26.7% B 0.232s 3240 35.4% B 0.262s 4137 45.2% B 0.293s 5075 55.4% B 0.323s 5961 65.1% B 0.353s 6748 73.7% B 0.383s 7419 81.0% B 0.414s 7986 87.2% B 0.444s 8444 92.2% B 0.474s 8788 96.0% B 0.504s 9018 98.5% B 0.535s 9137 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9042 98.8% A 0.081s 8767 95.8% A 0.111s 8408 91.9% A 0.141s 7941 86.7% A 0.171s 7381 80.6% A 0.202s 6691 73.1% A 0.232s 5895 64.4% A 0.262s 4984 54.4% A 0.292s 4036 44.1% A 0.322s 3166 34.6% A 0.353s 2387 26.1% A 0.383s 1711 18.7% A 0.413s 1146 12.5% A 0.443s 692 7.6% A 0.474s 359 3.9% A 0.504s 124 1.4% A 0.534s 13 0.1% A 0.565s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9011 98.4% B 0.081s 8761 95.7% B 0.111s 8420 92.0% B 0.141s 7935 86.7% B 0.171s 7377 80.6% B 0.202s 6664 72.8% B 0.232s 5894 64.4% B 0.262s 4949 54.1% B 0.293s 4052 44.3% B 0.323s 3160 34.5% B 0.353s 2395 26.2% B 0.383s 1683 18.4% B 0.414s 1129 12.3% B 0.444s 686 7.5% B 0.474s 354 3.9% B 0.504s 133 1.5% B 0.535s 14 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R