STH Recent Preflight: 61327
Executing preflight for 61327 at Tue Oct 13 17:49:45 SAST 2026.
Log can be found in /atlas/obs/03/61327/preflight.dat.
Setting donefile '/atlas/obs/03/61327/preflight_complete.20261013154945.7230' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261013154945.7230.
Tue Oct 13 17:49:45 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Oct 13 17:49:45 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [0158aca4-a9e1-4724-95be-a39548a53ae5;1800]
Tue Oct 13 17:49:45 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Oct 13 17:49:46 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Oct 13 17:49:46 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Oct 13 17:49:46 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Oct 13 17:49:46 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1791906583
OK
Tue Oct 13 17:49:46 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Oct 13 17:49:46 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
Tue Oct 13 17:49:48 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
Tue Oct 13 17:49:48 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Oct 13 17:49:48 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Oct 13 15:49:48 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 11 1024 377 1.064 -0.019 0.065
+metbox2.sth.atl .PPS. 1 u 705 1024 377 0.354 -0.079 0.032
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 370 1024 377 23.391 0.390 1.212
-ntp.as3741.net 146.64.58.41 2 u 180 1024 377 22.782 0.007 4.017
-ntp2.as3741.net 146.64.8.7 2 u 633 1024 377 7.242 0.053 0.125
-ntp2.inx.net.za 183.3.52.101 2 u 348 1024 377 7.347 -0.175 0.129
+ntp2.nog.net.za 80.72.67.48 3 u 845 1024 377 7.621 -0.013 0.639
-139.84.231.68 ( 196.21.187.2 2 u 544 1024 377 22.789 -0.500 1.322
-ntp7.inx.net.za 102.176.229.251 2 u 117 1024 377 16.535 -0.636 0.384
-tick.sanren.ac. .TC. 1 u 642 1024 377 23.224 0.080 0.362
Tue Oct 13 17:49:50 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6035GB)
200GB available in /atlas/red...OK (9529GB)
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/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 4.3T 9.1T 32% /
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 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/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Tue Oct 13 17:49:51 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
Tue Oct 13 17:49:51 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Tue Oct 13 17:49:51 SAST 2026 [elapsed=6 sec] SERVICES2
Tue Oct 13 17:49:51 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Oct 13 17:49:55 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= 928kB time=00:00:29.69 bitrate= 256.0kbits/s speed=1.49e+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
Tue Oct 13 17:52:29 SAST 2026 [elapsed=164 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: 279.04 -29.49, az/alt=324.74 +86.49 idle(e) IDLE
Tue Oct 13 17:53:20 SAST 2026 [elapsed=215 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Oct 13 17:53:40 SAST 2026 [elapsed=235 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.5 IDLE
Tue Oct 13 17:53:40 SAST 2026 [elapsed=235 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (0 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.4C)
Checking CCD plane: Z0=+1738.00 DZDX=-918.00 DZDY=+3024.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Oct 13 17:53:40 SAST 2026 [elapsed=235 sec] WEATHER
status weather: clear 18.1C 27% 18/28kph@16 DP17.4C/-60C/d IDLE
...OK
Tue Oct 13 17:53:41 SAST 2026 [elapsed=236 sec] MET
status...OK
met: c=N o=Y Ro7d Co13h Wo6d Ho9h To19d Do5d IDLE
Tue Oct 13 17:53:41 SAST 2026 [elapsed=236 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Oct 13 17:53:42 SAST 2026 [elapsed=237 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 307.96 -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 -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 8 0.1%
A 0.051s 109 1.2%
A 0.081s 391 4.3%
A 0.111s 734 8.0%
A 0.142s 1190 13.0%
A 0.172s 1784 19.5%
A 0.203s 2465 26.9%
A 0.233s 3260 35.6%
A 0.263s 4163 45.5%
A 0.294s 5114 55.9%
A 0.324s 5991 65.4%
A 0.354s 6803 74.3%
A 0.385s 7459 81.5%
A 0.415s 8016 87.6%
A 0.446s 8478 92.6%
A 0.476s 8801 96.1%
A 0.506s 9027 98.6%
A 0.537s 9152 100.0%
B 0.020s 2 0.0%
B 0.051s 104 1.1%
B 0.081s 393 4.3%
B 0.111s 739 8.1%
B 0.142s 1215 13.3%
B 0.172s 1797 19.6%
B 0.202s 2491 27.2%
B 0.233s 3284 35.9%
B 0.263s 4197 45.8%
B 0.294s 5161 56.4%
B 0.324s 6049 66.1%
B 0.354s 6820 74.5%
B 0.385s 7475 81.7%
B 0.415s 8043 87.9%
B 0.445s 8479 92.6%
B 0.476s 8816 96.3%
B 0.506s 9039 98.7%
B 0.536s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9069 99.1%
A 0.081s 8772 95.8%
A 0.111s 8415 91.9%
A 0.142s 7917 86.5%
A 0.172s 7372 80.5%
A 0.202s 6693 73.1%
A 0.233s 5896 64.4%
A 0.263s 4983 54.4%
A 0.294s 4043 44.2%
A 0.324s 3166 34.6%
A 0.354s 2376 26.0%
A 0.385s 1710 18.7%
A 0.415s 1147 12.5%
A 0.445s 698 7.6%
A 0.475s 356 3.9%
A 0.506s 129 1.4%
A 0.536s 11 0.1%
A 0.566s -6 0.0%
B 0.020s 9146 99.9%
B 0.050s 9037 98.7%
B 0.081s 8782 95.9%
B 0.111s 8437 92.2%
B 0.142s 7973 87.1%
B 0.172s 7400 80.8%
B 0.202s 6717 73.4%
B 0.232s 5924 64.7%
B 0.262s 5015 54.8%
B 0.293s 4078 44.5%
B 0.323s 3193 34.9%
B 0.353s 2407 26.3%
B 0.384s 1732 18.9%
B 0.414s 1142 12.5%
B 0.445s 698 7.6%
B 0.475s 356 3.9%
B 0.505s 101 1.1%
B 0.536s 11 0.1%
B 0.566s -4 0.0%
A 1 0.0mm 15 N F R | B -3 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.537 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.566 seconds.
Shutter B closed to 0.0 percent in 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed= 954x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9293 IDLE
Tue Oct 13 17:54:19 SAST 2026 [elapsed=274 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.5 IDLE
taking preflight exposures:
acam...OK
acam image:
127M Oct 13 17:54 /atlas/obs/03a/61327/03a61327e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Oct 13 17:54:42 SAST 2026 [elapsed=297 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (45 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Oct 13 17:54:42 SAST 2026 [elapsed=297 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61326.66299354|info|galildriver|using focus model: foc=9187+(4.30)*18.0+(-0.40)*60.2=9240.3
61326.66299891|info|galildriver|o 2 IN | cass: 3037063 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54018009 9293 um b=8f M [focus]
61326.66300801|info|galildriver|o 2 IN | cass: 3037065 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54014175 9274 um b=8f M [focus]
61326.66301967|info|galildriver|o 2 IN | cass: 3037063 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54007383 9240 um b=8f M [focus]
61326.66302540|info|galildriver|o 2 IN | cass: 3037061 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54006311 9235 um b=8f M [focus]
61326.66303078|info|galildriver|o 2 IN | cass: 3037063 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54006285 9235 um b=8f M [focus]
61326.66303698|info|galildriver|o 2 IN | cass: 3037062 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54006300 9235 um b=0f [cmd]
bestfocus for o...OK
Tue Oct 13 17:54:47 SAST 2026 [elapsed=302 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Oct 13 17:55:13 SAST 2026 [elapsed=328 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
Tue Oct 13 17:55:14 SAST 2026 [elapsed=329 sec] NOTICES: det_dzdx=-918 is outside range +-250 from -558; det_dzdy=3024 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Tue Oct 13 17:55:14 SAST 2026 [elapsed=329 sec] Happy observing!
Tue Oct 13 17:55:14 SAST 2026 [elapsed=329 sec] Preflight took 329 seconds to complete.
Tue Oct 13 17:55:14 SAST 2026 [elapsed=329 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 0.051s 106 1.2% A 0.081s 374 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.171s 1760 19.2% A 0.202s 2442 26.7% A 0.232s 3238 35.4% A 0.262s 4143 45.3% A 0.292s 5075 55.4% A 0.322s 5968 65.2% A 0.353s 6753 73.8% A 0.383s 7414 81.0% A 0.413s 7985 87.2% A 0.443s 8434 92.1% A 0.474s 8777 95.9% A 0.504s 9015 98.5% A 0.534s 9137 99.8% A 0.564s 9155 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 377 4.1% B 0.111s 741 8.1% B 0.141s 1203 13.1% B 0.171s 1771 19.3% B 0.201s 2465 26.9% B 0.232s 3268 35.7% B 0.262s 4168 45.5% B 0.292s 5105 55.8% B 0.323s 5988 65.4% B 0.353s 6771 74.0% B 0.383s 7441 81.3% B 0.413s 8002 87.4% B 0.444s 8456 92.4% B 0.474s 8795 96.1% B 0.504s 9024 98.6% B 0.534s 9139 99.8% B 0.564s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8422 92.0% A 0.141s 7957 86.9% A 0.171s 7380 80.6% A 0.201s 6691 73.1% A 0.232s 5893 64.4% A 0.262s 4981 54.4% A 0.292s 4036 44.1% A 0.322s 3167 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1161 12.7% A 0.443s 704 7.7% A 0.474s 365 4.0% A 0.504s 130 1.4% A 0.534s 14 0.2% A 0.564s 0 0.0% B 0.020s 9145 99.9% B 0.050s 9020 98.5% B 0.081s 8774 95.8% B 0.111s 8423 92.0% B 0.141s 7953 86.9% B 0.172s 7381 80.6% B 0.202s 6689 73.1% B 0.232s 5893 64.4% B 0.262s 4986 54.5% B 0.293s 4056 44.3% B 0.323s 3164 34.6% B 0.353s 2393 26.1% B 0.383s 1700 18.6% B 0.413s 1146 12.5% B 0.444s 697 7.6% B 0.474s 357 3.9% B 0.504s 137 1.5% B 0.534s 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