STH Recent Preflight: 61279
Executing preflight for 61279 at Wed Aug 26 17:18:50 SAST 2026.
Log can be found in /atlas/obs/03/61279/preflight.dat.
Setting donefile '/atlas/obs/03/61279/preflight_complete.20260826151850.30267' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260826151850.30267.
Wed Aug 26 17:18:50 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Aug 26 17:18:50 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [d389fff1-12a0-4f5a-a4ff-f1914d059776;1800]
Wed Aug 26 17:18:50 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Aug 26 17:18:51 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Aug 26 17:18:51 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Aug 26 17:18:51 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Aug 26 17:18:51 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1787757523
OK
Wed Aug 26 17:18:51 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Aug 26 17:18:51 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 Aug 26 17:18:53 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 Aug 26 17:18:54 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Wed Aug 26 17:18:54 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Wed Aug 26 15:18:54 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 38m 1024 374 1.047 0.072 0.093
+metbox2.sth.atl .PPS. 1 u 298 1024 377 0.296 0.016 0.034
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 851 1024 377 23.320 -0.008 0.150
-ntp.as3741.net 146.64.58.41 2 u 989 1024 377 22.873 -0.077 0.371
-ntp2.as3741.net 146.64.58.41 2 u 605 1024 377 7.282 -0.110 0.485
-ntp2.inx.net.za 196.21.187.2 2 u 705 1024 377 7.421 0.010 0.026
-ntp5.inx.net.za 210.182.58.253 2 u 1034 1024 377 7.845 0.047 0.034
#102.222.156.151 196.21.187.2 2 u 93 1024 377 24.702 0.289 0.244
+ntp2.nog.net.za 80.72.67.48 3 u 37 1024 377 7.560 0.048 0.139
-139.84.231.68 ( 196.21.187.2 2 u 680 1024 377 22.918 -0.290 1.016
-ntp8.inx.net.za 183.3.52.101 2 u 215 1024 377 16.866 -0.214 0.098
Wed Aug 26 17:18:57 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (4663GB)
200GB available in /atlas/red...OK (7188GB)
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 6.5T 6.9T 49% /
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/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
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/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17292
Wed Aug 26 17:18:58 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 Aug 26 17:18:58 SAST 2026 [elapsed=8 sec] Disabling mount tracking.
Wed Aug 26 17:18:58 SAST 2026 [elapsed=8 sec] SERVICES2
Wed Aug 26 17:18:58 SAST 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Aug 26 17:19:02 SAST 2026 [elapsed=12 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= 932kB time=00:00:29.82 bitrate= 256.0kbits/s speed=1.48e+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
Wed Aug 26 17:21:34 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: 223.98 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Wed Aug 26 17:22:25 SAST 2026 [elapsed=215 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Aug 26 17:22:45 SAST 2026 [elapsed=235 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.1 IDLE
Wed Aug 26 17:22:45 SAST 2026 [elapsed=235 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (7 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.4C)
Checking CCD plane: Z0=+1737.00 DZDX=-897.00 DZDY=+3014.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Aug 26 17:22:45 SAST 2026 [elapsed=235 sec] WEATHER
status weather: clear 17.6C 32% 7/10kph@131 DP15.8C/106C/d IDLE
...OK
Wed Aug 26 17:22:46 SAST 2026 [elapsed=236 sec] MET
status...OK
met: c=N o=Y Ro14d Co11d Wo15d Ho13d To69d Do34d IDLE
Wed Aug 26 17:22:46 SAST 2026 [elapsed=236 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Aug 26 17:22:46 SAST 2026 [elapsed=236 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 252.90 -14.63, az/alt=59.90 +60.06 tracking(w) IDLE 0s
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 0.051s 116 1.3%
A 0.081s 402 4.4%
A 0.111s 745 8.1%
A 0.141s 1207 13.2%
A 0.172s 1803 19.7%
A 0.202s 2490 27.2%
A 0.232s 3287 35.9%
A 0.263s 4195 45.8%
A 0.293s 5145 56.2%
A 0.323s 6018 65.7%
A 0.353s 6803 74.3%
A 0.384s 7459 81.5%
A 0.414s 8016 87.6%
A 0.445s 8490 92.7%
A 0.475s 8810 96.2%
A 0.505s 9033 98.7%
A 0.536s 9154 100.0%
B 0.020s 1 0.0%
B 0.050s 90 1.0%
B 0.081s 374 4.1%
B 0.111s 713 7.8%
B 0.141s 1179 12.9%
B 0.171s 1757 19.2%
B 0.202s 2442 26.7%
B 0.232s 3231 35.3%
B 0.262s 4137 45.2%
B 0.292s 5074 55.4%
B 0.323s 5963 65.1%
B 0.353s 6753 73.8%
B 0.383s 7415 81.0%
B 0.413s 7993 87.3%
B 0.444s 8443 92.2%
B 0.474s 8788 96.0%
B 0.504s 9022 98.6%
B 0.535s 9141 99.9%
B 0.565s 9161 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.050s 9056 98.9%
A 0.081s 8761 95.7%
A 0.111s 8401 91.8%
A 0.141s 7952 86.9%
A 0.172s 7352 80.3%
A 0.202s 6668 72.8%
A 0.232s 5869 64.1%
A 0.263s 4952 54.1%
A 0.293s 4014 43.8%
A 0.323s 3137 34.3%
A 0.354s 2353 25.7%
A 0.384s 1690 18.5%
A 0.414s 1130 12.3%
A 0.444s 684 7.5%
A 0.475s 346 3.8%
A 0.505s 124 1.4%
A 0.535s 11 0.1%
A 0.565s -6 0.0%
B 0.020s 9145 99.9%
B 0.050s 9032 98.7%
B 0.081s 8773 95.8%
B 0.111s 8423 92.0%
B 0.141s 7958 86.9%
B 0.171s 7380 80.6%
B 0.202s 6692 73.1%
B 0.232s 5897 64.4%
B 0.262s 4982 54.4%
B 0.292s 4052 44.3%
B 0.323s 3164 34.6%
B 0.353s 2383 26.0%
B 0.383s 1713 18.7%
B 0.413s 1141 12.5%
B 0.444s 709 7.7%
B 0.474s 366 4.0%
B 0.504s 134 1.5%
B 0.534s 14 0.2%
B 0.565s -5 0.0%
A 1 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 100.0 percent in 0.565 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=1.04e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9295 IDLE
Wed Aug 26 17:23:24 SAST 2026 [elapsed=274 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.1 IDLE
taking preflight exposures:
acam...OK
acam image:
123M Aug 26 17:23 /atlas/obs/03a/61279/03a61279e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Aug 26 17:23:46 SAST 2026 [elapsed=296 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (56 seconds old)
OTA humidity level...OK (16%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Aug 26 17:23:46 SAST 2026 [elapsed=296 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61278.64151587|info|galildriver|using focus model: foc=9187+(4.30)*17.7+(-0.40)*60.2=9239.0
61278.64152123|info|galildriver|o 2 IN | cass: 3039408 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54018379 9295 um b=8f M [focus]
61278.64153031|info|galildriver|o 2 IN | cass: 3039409 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54013681 9272 um b=8f M [focus]
61278.64154195|info|galildriver|o 2 IN | cass: 3039411 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006894 9238 um b=8f M [focus]
61278.64155023|info|galildriver|o 2 IN | cass: 3039411 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004329 9225 um b=8f M [focus]
61278.64155361|info|galildriver|o 2 IN | cass: 3039405 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004352 9225 um b=8f M [focus]
61278.64156177|info|galildriver|o 2 IN | cass: 3039411 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004332 9225 um b=0f [cmd]
bestfocus for o...OK
Wed Aug 26 17:23:51 SAST 2026 [elapsed=301 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Aug 26 17:24:17 SAST 2026 [elapsed=327 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 Aug 26 17:24:18 SAST 2026 [elapsed=328 sec] NOTICES: det_dzdx=-897 is outside range +-250 from -558; det_dzdy=3014 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Wed Aug 26 17:24:18 SAST 2026 [elapsed=328 sec] Happy observing!
Wed Aug 26 17:24:18 SAST 2026 [elapsed=328 sec] Preflight took 328 seconds to complete.
Wed Aug 26 17:24:18 SAST 2026 [elapsed=328 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 4 0.0% A 0.050s 122 1.3% A 0.081s 396 4.3% A 0.111s 748 8.2% A 0.141s 1215 13.3% A 0.171s 1803 19.7% A 0.202s 2489 27.2% A 0.232s 3296 36.0% A 0.262s 4203 45.9% A 0.292s 5134 56.1% A 0.323s 6025 65.8% A 0.353s 6796 74.2% A 0.383s 7453 81.4% A 0.413s 8023 87.6% A 0.443s 8457 92.4% A 0.473s 8793 96.1% A 0.504s 9028 98.6% A 0.534s 9137 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.050s 114 1.2% B 0.081s 379 4.1% B 0.111s 729 8.0% B 0.141s 1202 13.1% B 0.171s 1773 19.4% B 0.202s 2468 27.0% B 0.232s 3266 35.7% B 0.262s 4165 45.5% B 0.292s 5104 55.8% B 0.322s 5989 65.4% B 0.353s 6771 74.0% B 0.383s 7439 81.3% B 0.413s 7984 87.2% B 0.443s 8444 92.2% B 0.473s 8786 96.0% B 0.504s 9018 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9058 99.0% A 0.081s 8788 96.0% A 0.111s 8433 92.1% A 0.141s 7975 87.1% A 0.171s 7401 80.8% A 0.201s 6715 73.4% A 0.232s 5922 64.7% A 0.262s 5012 54.8% A 0.292s 4068 44.4% A 0.322s 3220 35.2% A 0.352s 2432 26.6% A 0.383s 1752 19.1% A 0.413s 1180 12.9% A 0.443s 718 7.8% A 0.473s 376 4.1% A 0.504s 137 1.5% A 0.534s 17 0.2% A 0.564s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9013 98.5% B 0.081s 8773 95.8% B 0.111s 8422 92.0% B 0.141s 7951 86.9% B 0.171s 7380 80.6% B 0.201s 6690 73.1% B 0.232s 5893 64.4% B 0.262s 4983 54.4% B 0.292s 4052 44.3% B 0.322s 3165 34.6% B 0.352s 2393 26.1% B 0.383s 1703 18.6% B 0.413s 1163 12.7% B 0.443s 711 7.8% B 0.473s 365 4.0% B 0.503s 138 1.5% B 0.534s 15 0.2% B 0.564s -1 0.0% A 0 0.0mm 15 N F R | B -1 -0.0mm 15 N F R