STH Recent Preflight: 61251
Executing preflight for 61251 at Wed Jul 29 17:00:53 SAST 2026.
Log can be found in /atlas/obs/03/61251/preflight.dat.
Setting donefile '/atlas/obs/03/61251/preflight_complete.20260729150053.4595' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260729150053.4595.
Wed Jul 29 17:00:53 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Jul 29 17:00:53 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [a12699f8-e7e2-46b7-9db7-2c9e44672945;1800]
Wed Jul 29 17:00:53 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
Wed Jul 29 17:00:54 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Jul 29 17:00:54 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Jul 29 17:00:54 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Jul 29 17:00:54 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1785337248
OK
Wed Jul 29 17:00:54 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Jul 29 17:00:54 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 Jul 29 17:00:55 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
Wed Jul 29 17:00:56 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Jul 29 17:00:56 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Wed Jul 29 15:00:56 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 696 1024 377 1.042 -0.023 0.056
*metbox2.sth.atl .PPS. 1 u 496 1024 377 0.315 -0.027 0.058
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 307 1024 377 23.306 0.166 0.277
-ntp.as3741.net 146.64.58.41 2 u 1013 1024 377 22.876 -0.072 0.070
-ntp2.as3741.net 129.134.28.123 2 u 448 1024 377 7.249 -0.166 0.215
-ntp2.inx.net.za 183.3.52.101 2 u 598 1024 377 7.236 0.038 0.038
-ntp5.inx.net.za 196.21.187.2 2 u 614 1024 377 7.551 -0.095 0.366
#102.222.156.151 196.21.187.2 2 u 304 1024 177 26.690 1.348 4.998
+ntp2.nog.net.za 80.72.67.48 3 u 541 1024 377 7.626 0.015 0.077
+139.84.231.68 ( 196.21.187.2 2 u 138 1024 377 22.787 0.020 0.116
-ntp8.inx.net.za 183.3.52.101 2 u 811 1024 377 16.768 -0.220 0.284
Wed Jul 29 17:00:59 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (5873GB)
200GB available in /atlas/red...OK (9106GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.7T 5.7T 46% /
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 40% /
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 4.7T 8.7T 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 1.7T 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 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
Wed Jul 29 17:01:00 SAST 2026 [elapsed=7 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 Jul 29 17:01:00 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Wed Jul 29 17:01:00 SAST 2026 [elapsed=7 sec] SERVICES2
Wed Jul 29 17:01:00 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Jul 29 17:01:04 SAST 2026 [elapsed=11 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=1.47e+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
Wed Jul 29 17:04:19 SAST 2026 [elapsed=206 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: 192.06 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Wed Jul 29 17:05:10 SAST 2026 [elapsed=257 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Jul 29 17:05:29 SAST 2026 [elapsed=276 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Wed Jul 29 17:05:29 SAST 2026 [elapsed=276 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 (-55.2C)
Checking CCD plane: Z0=+1664.00 DZDX=-883.00 DZDY=+1349.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Jul 29 17:05:29 SAST 2026 [elapsed=276 sec] WEATHER
status weather: C+ H+ 3.9C 91% 20/28kph@155 DP0.7C/-24C/d IDLE
...OK
Wed Jul 29 17:05:30 SAST 2026 [elapsed=277 sec] MET
status...OK
met: c=Y o=N Ro14h Cx2 Wo9d Hx1h To41d Do6d wait CH IDLE
Wed Jul 29 17:05:30 SAST 2026 [elapsed=277 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Jul 29 17:05:32 SAST 2026 [elapsed=279 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 220.98 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 9 0.1%
A 0.051s 113 1.2%
A 0.081s 400 4.4%
A 0.111s 758 8.3%
A 0.142s 1222 13.3%
A 0.172s 1824 19.9%
A 0.202s 2513 27.5%
A 0.233s 3315 36.2%
A 0.263s 4226 46.2%
A 0.294s 5175 56.5%
A 0.324s 6046 66.0%
A 0.354s 6827 74.6%
A 0.385s 7477 81.7%
A 0.415s 8034 87.8%
A 0.445s 8491 92.8%
A 0.475s 8811 96.3%
A 0.506s 9034 98.7%
A 0.536s 9157 100.0%
B 0.020s 1 0.0%
B 0.050s 98 1.1%
B 0.081s 381 4.2%
B 0.111s 725 7.9%
B 0.141s 1196 13.1%
B 0.172s 1776 19.4%
B 0.202s 2464 26.9%
B 0.233s 3258 35.6%
B 0.263s 4166 45.5%
B 0.293s 5103 55.7%
B 0.323s 5992 65.5%
B 0.354s 6775 74.0%
B 0.384s 7436 81.2%
B 0.415s 8027 87.7%
B 0.445s 8468 92.5%
B 0.475s 8808 96.2%
B 0.505s 9036 98.7%
B 0.536s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9066 99.0%
A 0.081s 8775 95.9%
A 0.111s 8415 91.9%
A 0.141s 7969 87.1%
A 0.172s 7374 80.6%
A 0.202s 6693 73.1%
A 0.232s 5896 64.4%
A 0.263s 4983 54.4%
A 0.293s 4044 44.2%
A 0.323s 3165 34.6%
A 0.354s 2379 26.0%
A 0.384s 1706 18.6%
A 0.414s 1146 12.5%
A 0.444s 698 7.6%
A 0.474s 353 3.9%
A 0.505s 128 1.4%
A 0.535s 12 0.1%
A 0.565s -8 0.0%
B 0.020s 9145 99.9%
B 0.050s 9034 98.7%
B 0.081s 8775 95.9%
B 0.111s 8425 92.0%
B 0.141s 7958 86.9%
B 0.172s 7380 80.6%
B 0.202s 6694 73.1%
B 0.232s 5870 64.1%
B 0.263s 4985 54.5%
B 0.293s 4050 44.2%
B 0.323s 3165 34.6%
B 0.353s 2383 26.0%
B 0.384s 1713 18.7%
B 0.414s 1140 12.5%
B 0.444s 696 7.6%
B 0.474s 355 3.9%
B 0.505s 126 1.4%
B 0.535s 11 0.1%
B 0.565s -6 0.0%
A 0 0.0mm 15 N F R | B -5 -0.2mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.536 seconds.
Shutter B opened to 99.9 percent in 0.536 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= 657x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9210 IDLE
Wed Jul 29 17:06:09 SAST 2026 [elapsed=316 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:
123M Jul 29 17:06 /atlas/obs/03a/61251/03a61251e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Jul 29 17:06:31 SAST 2026 [elapsed=338 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (42 seconds old)
OTA humidity level...OK (17%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Jul 29 17:06:31 SAST 2026 [elapsed=338 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61250.62953574|info|galildriver|using focus model: foc=9187+(4.30)*11.1+(-0.40)*60.2=9210.6
61250.62954041|info|galildriver|o 2 IN | cass: 3046024 15.23 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54001509 9211 um b=0f [cmd]
bestfocus for o...OK
Wed Jul 29 17:06:32 SAST 2026 [elapsed=339 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Jul 29 17:06:58 SAST 2026 [elapsed=365 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
Wed Jul 29 17:06:59 SAST 2026 [elapsed=366 sec] NOTICES: det_dzdx=-883 is outside range +-250 from -558; det_dzdy=1349 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 Jul 29 17:06:59 SAST 2026 [elapsed=366 sec] Happy observing!
Wed Jul 29 17:06:59 SAST 2026 [elapsed=366 sec] Preflight took 366 seconds to complete.
Wed Jul 29 17:06:59 SAST 2026 [elapsed=366 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 0.051s 108 1.2% A 0.081s 376 4.1% A 0.111s 722 7.9% A 0.141s 1181 12.9% A 0.172s 1762 19.2% A 0.202s 2441 26.7% A 0.232s 3239 35.4% A 0.263s 4143 45.3% A 0.293s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6752 73.8% A 0.383s 7414 81.0% A 0.414s 7989 87.3% A 0.444s 8445 92.3% A 0.474s 8783 95.9% A 0.504s 9020 98.5% A 0.534s 9136 99.8% A 0.565s 9154 100.0% B 0.020s 1 0.0% B 0.050s 118 1.3% B 0.081s 388 4.2% B 0.111s 741 8.1% B 0.141s 1217 13.3% B 0.171s 1794 19.6% B 0.201s 2490 27.2% B 0.232s 3295 36.0% B 0.262s 4167 45.5% B 0.292s 5102 55.7% B 0.322s 5988 65.4% B 0.352s 6771 74.0% B 0.383s 7442 81.3% B 0.413s 8002 87.4% B 0.443s 8457 92.4% B 0.474s 8796 96.1% B 0.504s 9023 98.6% B 0.534s 9138 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9048 98.8% A 0.081s 8778 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.171s 7380 80.6% A 0.201s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.292s 4038 44.1% A 0.322s 3166 34.6% A 0.352s 2387 26.1% A 0.383s 1732 18.9% A 0.413s 1146 12.5% A 0.443s 694 7.6% A 0.473s 367 4.0% A 0.504s 131 1.4% A 0.534s 16 0.2% A 0.564s 1 0.0% B 0.020s 9143 99.9% B 0.050s 9019 98.5% B 0.081s 8770 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.171s 7377 80.6% B 0.202s 6690 73.1% B 0.232s 5894 64.4% B 0.262s 5011 54.7% B 0.293s 4054 44.3% B 0.323s 3188 34.8% B 0.353s 2417 26.4% B 0.383s 1726 18.9% B 0.413s 1162 12.7% B 0.444s 714 7.8% B 0.474s 366 4.0% B 0.504s 138 1.5% B 0.534s 16 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R