STH Recent Preflight: 61257
Executing preflight for 61257 at Tue Aug 4 17:04:42 SAST 2026.
Log can be found in /atlas/obs/03/61257/preflight.dat.
Setting donefile '/atlas/obs/03/61257/preflight_complete.20260804150442.4595' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260804150442.4595.
Tue Aug 4 17:04:42 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Aug 4 17:04:42 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [38ba6ac6-a57e-4d8e-803f-710e5d56b78f;1800]
Tue Aug 4 17:04:42 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 ON redLED
Tue Aug 4 17:04:43 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Aug 4 17:04:43 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Aug 4 17:04:43 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Aug 4 17:04:43 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1785855878
OK
Tue Aug 4 17:04:43 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Aug 4 17:04:43 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 Aug 4 17:04:45 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 Aug 4 17:04:45 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Aug 4 17:04:45 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Aug 4 15:04:45 UTC 2026
met: 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 430 512 377 0.976 -0.025 0.016
+metbox2.sth.atl .PPS. 1 u 186 512 377 0.275 -0.058 0.019
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 208.219.48.14 2 u 214 512 377 23.276 0.187 0.375
-ntp.as3741.net 146.64.58.41 2 u 310 512 377 22.863 -0.202 1.246
-ntp2.as3741.net 129.134.28.123 2 u 395 512 377 7.313 -0.405 0.055
-ntp2.inx.net.za 183.3.52.101 2 u 373 512 377 7.305 -0.024 0.056
-ntp5.inx.net.za 210.182.58.253 2 u 456 512 377 7.511 -0.089 0.121
#102.222.156.151 196.21.187.2 2 u 12 1024 377 23.399 -0.350 0.562
+ntp2.nog.net.za 80.72.67.48 3 u 190 512 377 7.445 0.058 0.749
-139.84.231.68 ( 196.21.187.2 2 u 402 512 377 22.805 -0.043 0.869
-ntp8.inx.net.za 210.182.58.253 2 u 481 512 377 16.927 -0.484 0.813
Tue Aug 4 17:04:51 SAST 2026 [elapsed=9 sec] DISKS
200GB available in /atlas/obs...OK (5766GB)
200GB available in /atlas/red...OK (8284GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.8T 5.5T 47% /
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 5.5T 8.0T 41% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.9T 12T 14% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 736G 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
Tue Aug 4 17:04:51 SAST 2026 [elapsed=9 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 Aug 4 17:04:51 SAST 2026 [elapsed=9 sec] Disabling mount tracking.
Tue Aug 4 17:04:51 SAST 2026 [elapsed=9 sec] SERVICES2
Tue Aug 4 17:04:51 SAST 2026 [elapsed=9 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Aug 4 17:04:56 SAST 2026 [elapsed=14 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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.47e+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 Aug 4 17:08:11 SAST 2026 [elapsed=209 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: 198.95 -29.49, az/alt=324.82 +86.49 idle(e) IDLE
Tue Aug 4 17:09:02 SAST 2026 [elapsed=260 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Aug 4 17:09:21 SAST 2026 [elapsed=279 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Tue Aug 4 17:09:21 SAST 2026 [elapsed=279 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.5C)
Checking CCD plane: Z0=+1719.00 DZDX=-886.00 DZDY=+2611.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Aug 4 17:09:21 SAST 2026 [elapsed=279 sec] WEATHER
status weather: C 13.4C 39% 26/32kph@36 DP12.1C/-43C/d IDLE
...OK
Tue Aug 4 17:09:22 SAST 2026 [elapsed=280 sec] MET
status...OK
met: c=N o=N Ro5d Cx0 Wo15d Ho4d To47d Do12d wait C IDLE
Tue Aug 4 17:09:22 SAST 2026 [elapsed=280 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Aug 4 17:09:22 SAST 2026 [elapsed=280 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 227.86 -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 -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 -1 -0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 7 0.1%
A 0.051s 107 1.2%
A 0.081s 390 4.3%
A 0.111s 732 8.0%
A 0.141s 1190 13.0%
A 0.172s 1783 19.5%
A 0.202s 2464 26.9%
A 0.232s 3260 35.6%
A 0.263s 4164 45.5%
A 0.293s 5115 55.9%
A 0.323s 5991 65.4%
A 0.353s 6779 74.1%
A 0.384s 7441 81.3%
A 0.414s 8000 87.4%
A 0.444s 8464 92.5%
A 0.475s 8792 96.0%
A 0.505s 9022 98.6%
A 0.535s 9151 100.0%
B 0.020s 1 0.0%
B 0.050s 97 1.1%
B 0.081s 383 4.2%
B 0.111s 725 7.9%
B 0.141s 1197 13.1%
B 0.172s 1776 19.4%
B 0.202s 2466 26.9%
B 0.232s 3258 35.6%
B 0.263s 4165 45.5%
B 0.293s 5102 55.7%
B 0.323s 5992 65.5%
B 0.353s 6776 74.0%
B 0.384s 7434 81.2%
B 0.414s 8010 87.5%
B 0.444s 8456 92.4%
B 0.474s 8798 96.1%
B 0.505s 9028 98.6%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.051s 9058 99.0%
A 0.081s 8762 95.7%
A 0.111s 8402 91.8%
A 0.142s 7951 86.9%
A 0.172s 7352 80.3%
A 0.202s 6669 72.9%
A 0.232s 5870 64.1%
A 0.263s 4952 54.1%
A 0.293s 4014 43.8%
A 0.323s 3141 34.3%
A 0.354s 2353 25.7%
A 0.384s 1667 18.2%
A 0.414s 1117 12.2%
A 0.445s 672 7.3%
A 0.475s 334 3.6%
A 0.505s 120 1.3%
A 0.536s 8 0.1%
B 0.020s 9146 99.9%
B 0.050s 9039 98.7%
B 0.081s 8783 95.9%
B 0.111s 8437 92.2%
B 0.141s 7974 87.1%
B 0.171s 7401 80.8%
B 0.202s 6717 73.4%
B 0.232s 5923 64.7%
B 0.262s 5015 54.8%
B 0.292s 4079 44.6%
B 0.323s 3192 34.9%
B 0.353s 2406 26.3%
B 0.383s 1733 18.9%
B 0.414s 1157 12.6%
B 0.444s 709 7.7%
B 0.474s 365 4.0%
B 0.504s 134 1.5%
B 0.535s 14 0.2%
B 0.565s -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 0.1 percent in 0.536 seconds.
Shutter B closed to 0.0 percent in 0.565 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.02e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9204 IDLE
Tue Aug 4 17:10:00 SAST 2026 [elapsed=318 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
122M Aug 4 17:10 /atlas/obs/03a/61257/03a61257e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Aug 4 17:10:22 SAST 2026 [elapsed=340 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (3 seconds old)
OTA humidity level...OK (17%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Aug 4 17:10:22 SAST 2026 [elapsed=340 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61256.63220876|info|galildriver|using focus model: foc=9187+(4.30)*16.0+(-0.40)*60.2=9231.7
61256.63221412|info|galildriver|o 2 IN | cass: 3042466 15.21 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54001153 9209 um b=8f M [focus]
61256.63222496|info|galildriver|o 2 IN | cass: 3042467 15.21 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005318 9230 um b=8f M [focus]
61256.63223254|info|galildriver|o 2 IN | cass: 3042470 15.21 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005529 9231 um b=0f [cmd]
bestfocus for o...OK
Tue Aug 4 17:10:25 SAST 2026 [elapsed=343 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Aug 4 17:10:51 SAST 2026 [elapsed=369 sec] Disabling mount tracking.
Waiting on the mount ... done.
Turning tracking off ... done.
Waiting on the mount ... done.
Recheck mount status ... done.
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 OFF redLED
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 2 OFF whiteLED
Tue Aug 4 17:10:53 SAST 2026 [elapsed=371 sec] NOTICES: det_dzdx=-886 is outside range +-250 from -558; det_dzdy=2611 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 Aug 4 17:10:53 SAST 2026 [elapsed=371 sec] Happy observing!
Tue Aug 4 17:10:53 SAST 2026 [elapsed=371 sec] Preflight took 371 seconds to complete.
Tue Aug 4 17:10:53 SAST 2026 [elapsed=371 sec] STARTING CLEANUP
Turning off LEDs
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 OFF redLED
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
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 736 8.0% A 0.141s 1197 13.1% A 0.171s 1782 19.5% A 0.201s 2466 26.9% A 0.232s 3267 35.7% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.322s 5969 65.2% A 0.353s 6774 74.0% A 0.383s 7434 81.2% A 0.413s 8005 87.4% A 0.443s 8458 92.4% A 0.474s 8793 96.1% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.051s 111 1.2% B 0.081s 379 4.1% B 0.111s 713 7.8% B 0.141s 1186 13.0% B 0.171s 1752 19.1% B 0.201s 2443 26.7% B 0.232s 3242 35.4% B 0.262s 4137 45.2% B 0.292s 5073 55.4% B 0.322s 5960 65.1% B 0.352s 6750 73.7% B 0.383s 7420 81.1% B 0.413s 7985 87.2% B 0.443s 8443 92.2% B 0.473s 8785 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 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.171s 7380 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4981 54.4% A 0.292s 4038 44.1% A 0.323s 3166 34.6% A 0.353s 2387 26.1% A 0.383s 1713 18.7% A 0.413s 1146 12.5% A 0.444s 693 7.6% A 0.474s 359 3.9% A 0.504s 125 1.4% A 0.534s 14 0.2% A 0.564s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9017 98.5% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7952 86.9% B 0.171s 7397 80.8% B 0.201s 6689 73.1% B 0.232s 5919 64.7% B 0.262s 5009 54.7% B 0.292s 4082 44.6% B 0.322s 3192 34.9% B 0.352s 2416 26.4% B 0.383s 1723 18.8% B 0.413s 1161 12.7% B 0.443s 713 7.8% B 0.473s 365 4.0% B 0.504s 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