STH Recent Preflight: 61308
Executing preflight for 61308 at Thu Sep 24 17:36:48 SAST 2026.
Log can be found in /atlas/obs/03/61308/preflight.dat.
Setting donefile '/atlas/obs/03/61308/preflight_complete.20260924153648.19563' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260924153648.19563.
Thu Sep 24 17:36:48 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Sep 24 17:36:48 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [461422cc-3144-4ff6-a220-e1a9f94d15ed;1800]
Thu Sep 24 17:36:48 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu Sep 24 17:36:49 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Sep 24 17:36:49 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu Sep 24 17:36:49 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Sep 24 17:36:49 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1790264202
OK
Thu Sep 24 17:36:49 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Sep 24 17:36:49 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
Thu Sep 24 17:36:50 SAST 2026 [elapsed=2 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
Thu Sep 24 17:36:51 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Sep 24 17:36:51 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Thu Sep 24 15:36:51 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 293 1024 177 1.058 0.046 0.128
-metbox2.sth.atl .PPS. 1 u 600 1024 377 0.299 0.024 0.102
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 65 1024 377 23.319 0.542 0.300
-ntp.as3741.net 155.232.19.6 2 u 752 1024 377 23.053 -0.061 3.073
+ntp2.as3741.net 155.232.19.6 2 u 952 1024 377 7.284 0.059 0.126
-ntp2.inx.net.za 183.3.52.101 2 u 851 1024 377 7.370 0.056 0.120
+ntp2.nog.net.za 80.72.67.48 3 u 850 1024 377 7.545 0.069 0.106
-139.84.231.68 ( 196.21.187.2 2 u 341 1024 377 22.795 -0.186 3.917
-ntp7.inx.net.za 183.3.52.101 2 u 44 1024 377 16.460 -0.047 0.070
*tick.sanren.ac. .TC. 1 u 1003 1024 377 23.187 0.033 0.081
Thu Sep 24 17:36:53 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (5886GB)
200GB available in /atlas/red...OK (9195GB)
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/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 4.6T 8.8T 35% /
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 737G 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
Thu Sep 24 17:36:53 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
Thu Sep 24 17:36:53 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Thu Sep 24 17:36:53 SAST 2026 [elapsed=5 sec] SERVICES2
Thu Sep 24 17:36:53 SAST 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Sep 24 17:36:57 SAST 2026 [elapsed=9 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= 926kB time=00:00:29.63 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/CLOSED (0%) IDLE
Thu Sep 24 17:39:27 SAST 2026 [elapsed=159 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: 257.05 -29.49, az/alt=324.82 +86.49 idle(e) IDLE
Thu Sep 24 17:40:18 SAST 2026 [elapsed=210 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Sep 24 17:40:37 SAST 2026 [elapsed=229 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.2 IDLE
Thu Sep 24 17:40:37 SAST 2026 [elapsed=229 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 (-54.0C)
Checking CCD plane: Z0=+1761.00 DZDX=-951.00 DZDY=+3543.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Sep 24 17:40:37 SAST 2026 [elapsed=229 sec] WEATHER
status weather: C 21.3C 50% 14/22kph@14 DP12.9C/87C/d IDLE
...OK
Thu Sep 24 17:40:37 SAST 2026 [elapsed=229 sec] MET
status...OK
met: c=N o=Y Ro21h Co14h Wo21h Ho14h To21h Do19h IDLE
Thu Sep 24 17:40:37 SAST 2026 [elapsed=229 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Sep 24 17:40:39 SAST 2026 [elapsed=231 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 285.97 -14.64, 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 -1 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 101 1.1%
A 0.081s 384 4.2%
A 0.111s 723 7.9%
A 0.141s 1171 12.8%
A 0.172s 1765 19.3%
A 0.202s 2441 26.7%
A 0.232s 3258 35.6%
A 0.263s 4137 45.2%
A 0.293s 5115 55.9%
A 0.323s 5991 65.4%
A 0.354s 6780 74.1%
A 0.384s 7439 81.3%
A 0.414s 7999 87.4%
A 0.444s 8466 92.5%
A 0.475s 8791 96.0%
A 0.505s 9021 98.5%
A 0.535s 9151 100.0%
B 0.020s 2 0.0%
B 0.051s 106 1.2%
B 0.081s 396 4.3%
B 0.111s 739 8.1%
B 0.141s 1216 13.3%
B 0.172s 1798 19.6%
B 0.202s 2488 27.2%
B 0.232s 3285 35.9%
B 0.263s 4196 45.8%
B 0.293s 5131 56.1%
B 0.323s 6023 65.8%
B 0.353s 6794 74.2%
B 0.384s 7457 81.5%
B 0.414s 8026 87.7%
B 0.444s 8464 92.5%
B 0.474s 8806 96.2%
B 0.504s 9033 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9062 99.0%
A 0.081s 8771 95.8%
A 0.111s 8413 91.9%
A 0.141s 7968 87.0%
A 0.171s 7373 80.5%
A 0.202s 6692 73.1%
A 0.232s 5897 64.4%
A 0.262s 4981 54.4%
A 0.292s 4045 44.2%
A 0.322s 3166 34.6%
A 0.353s 2376 26.0%
A 0.383s 1730 18.9%
A 0.413s 1164 12.7%
A 0.443s 711 7.8%
A 0.474s 366 4.0%
A 0.504s 135 1.5%
A 0.534s 17 0.2%
A 0.564s -5 0.0%
B 0.020s 9146 99.9%
B 0.050s 9039 98.7%
B 0.081s 8780 95.9%
B 0.111s 8436 92.2%
B 0.141s 7973 87.1%
B 0.171s 7398 80.8%
B 0.202s 6717 73.4%
B 0.232s 5925 64.7%
B 0.262s 5013 54.8%
B 0.292s 4080 44.6%
B 0.322s 3194 34.9%
B 0.353s 2406 26.3%
B 0.383s 1734 18.9%
B 0.413s 1159 12.7%
B 0.443s 709 7.7%
B 0.474s 366 4.0%
B 0.504s 133 1.5%
B 0.534s 16 0.2%
B 0.564s -4 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 0.535 seconds.
Shutter B opened to 99.9 percent in 0.535 seconds.
Shutter A closed to 0.0 percent in 0.564 seconds.
Shutter B closed to 0.0 percent in 0.564 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.18e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9313 IDLE
Thu Sep 24 17:41:17 SAST 2026 [elapsed=269 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:
132M Sep 24 17:41 /atlas/obs/03a/61308/03a61308e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Sep 24 17:41:39 SAST 2026 [elapsed=291 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (72 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Sep 24 17:41:40 SAST 2026 [elapsed=292 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61307.65393878|info|galildriver|using focus model: foc=9187+(4.30)*20.3+(-0.40)*60.2=9250.2
61307.65394414|info|galildriver|o 2 IN | cass: 3036042 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54021499 9311 um b=8f M [focus]
61307.65395322|info|galildriver|o 2 IN | cass: 3036044 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54016277 9285 um b=8f M [focus]
61307.65396486|info|galildriver|o 2 IN | cass: 3036045 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54009573 9251 um b=8f M [focus]
61307.65397059|info|galildriver|o 2 IN | cass: 3036043 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54008490 9246 um b=8f M [focus]
61307.65397596|info|galildriver|o 2 IN | cass: 3036046 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54008472 9245 um b=8f M [focus]
61307.65398214|info|galildriver|o 2 IN | cass: 3036044 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54008482 9246 um b=0f [cmd]
bestfocus for o...OK
Thu Sep 24 17:41:45 SAST 2026 [elapsed=297 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Sep 24 17:42:10 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
Thu Sep 24 17:42:12 SAST 2026 [elapsed=324 sec] NOTICES: det_dzdx=-951 is outside range +-250 from -558; det_dzdy=3543 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Thu Sep 24 17:42:12 SAST 2026 [elapsed=324 sec] Happy observing!
Thu Sep 24 17:42:12 SAST 2026 [elapsed=324 sec] Preflight took 324 seconds to complete.
Thu Sep 24 17:42:12 SAST 2026 [elapsed=324 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 115 1.3% A 0.081s 385 4.2% A 0.111s 724 7.9% A 0.141s 1180 12.9% A 0.171s 1762 19.2% A 0.201s 2441 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5073 55.4% A 0.322s 5971 65.2% A 0.353s 6751 73.7% A 0.383s 7413 81.0% A 0.413s 7990 87.3% A 0.443s 8445 92.3% A 0.474s 8784 96.0% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.050s 106 1.2% B 0.081s 370 4.0% B 0.111s 713 7.8% B 0.141s 1186 13.0% B 0.171s 1751 19.1% B 0.201s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4135 45.2% B 0.292s 5073 55.4% B 0.322s 5933 64.8% B 0.352s 6726 73.5% B 0.383s 7401 80.8% B 0.413s 7968 87.0% B 0.443s 8430 92.1% B 0.474s 8776 95.9% B 0.504s 9012 98.4% B 0.534s 9134 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9050 98.9% A 0.081s 8778 95.9% A 0.111s 8420 92.0% A 0.141s 7959 86.9% A 0.171s 7380 80.6% A 0.202s 6692 73.1% A 0.232s 5894 64.4% A 0.262s 4982 54.4% A 0.293s 4038 44.1% A 0.323s 3167 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.414s 1147 12.5% A 0.444s 692 7.6% A 0.474s 359 3.9% A 0.504s 125 1.4% A 0.535s 14 0.2% A 0.565s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9020 98.5% B 0.081s 8772 95.8% B 0.111s 8423 92.0% B 0.141s 7954 86.9% B 0.171s 7381 80.6% B 0.201s 6691 73.1% B 0.232s 5892 64.4% B 0.262s 4980 54.4% B 0.292s 4056 44.3% B 0.322s 3166 34.6% B 0.353s 2393 26.1% B 0.383s 1701 18.6% B 0.413s 1146 12.5% B 0.443s 699 7.6% B 0.474s 357 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R