STH Recent Preflight: 61252
Executing preflight for 61252 at Thu Jul 30 17:01:25 SAST 2026.
Log can be found in /atlas/obs/03/61252/preflight.dat.
Setting donefile '/atlas/obs/03/61252/preflight_complete.20260730150125.4595' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260730150125.4595.
Thu Jul 30 17:01:25 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Jul 30 17:01:25 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [e3d3746e-9854-4e56-8828-bff75371acf7;1800]
Thu Jul 30 17:01:25 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
Thu Jul 30 17:01:26 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Jul 30 17:01:26 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu Jul 30 17:01:26 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Jul 30 17:01:26 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1785423683
OK
Thu Jul 30 17:01:26 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Jul 30 17:01:26 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 Jul 30 17:01:27 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 Jul 30 17:01:28 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Jul 30 17:01:28 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Thu Jul 30 15:01:28 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 386 1024 377 1.078 0.294 0.060
+metbox2.sth.atl .PPS. 1 u 236 1024 377 0.249 0.287 0.044
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 208.219.48.14 2 u 149 1024 377 35.743 0.217 0.680
-ntp.as3741.net 146.64.58.41 2 u 916 1024 377 28.706 -2.626 4.573
-ntp2.as3741.net 129.134.28.123 2 u 685 1024 377 7.226 -0.235 0.066
-ntp2.inx.net.za 196.21.187.2 2 u 562 1024 377 7.301 0.249 0.040
-ntp5.inx.net.za 196.21.187.2 2 u 688 1024 377 7.503 0.197 0.156
#102.222.156.151 196.21.187.2 2 u 293 1024 377 30.572 -2.141 10.597
+ntp2.nog.net.za 80.72.67.48 3 u 588 1024 377 7.595 0.416 0.076
-139.84.231.68 ( 196.21.187.2 2 u 929 1024 377 34.546 0.258 1.800
-ntp8.inx.net.za 210.182.58.253 2 u 317 1024 377 16.871 -1.564 19.075
Thu Jul 30 17:01:33 SAST 2026 [elapsed=8 sec] DISKS
200GB available in /atlas/obs...OK (5994GB)
200GB available in /atlas/red...OK (9120GB)
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 45% /
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 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
Thu Jul 30 17:01:33 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
Thu Jul 30 17:01:33 SAST 2026 [elapsed=8 sec] Disabling mount tracking.
Thu Jul 30 17:01:33 SAST 2026 [elapsed=8 sec] SERVICES2
Thu Jul 30 17:01:33 SAST 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Jul 30 17:01:37 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= 930kB time=00:00:29.76 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 Jul 30 17:04:50 SAST 2026 [elapsed=205 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: 193.18 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Thu Jul 30 17:05:41 SAST 2026 [elapsed=256 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Jul 30 17:06:03 SAST 2026 [elapsed=278 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Thu Jul 30 17:06:03 SAST 2026 [elapsed=278 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.9C)
Checking CCD plane: Z0=+1693.00 DZDX=-890.00 DZDY=+1978.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Jul 30 17:06:03 SAST 2026 [elapsed=278 sec] WEATHER
status weather: clear 8.0C 71% 9/12kph@151 DP3.6C/-54C/d IDLE
...OK
Thu Jul 30 17:06:03 SAST 2026 [elapsed=278 sec] MET
status...OK
met: c=N o=Y Ro14h Co11h Wo10d Ho6h To42d Do7d IDLE
Thu Jul 30 17:06:03 SAST 2026 [elapsed=278 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Jul 30 17:06:05 SAST 2026 [elapsed=280 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 222.09 -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 114 1.2%
A 0.081s 401 4.4%
A 0.111s 746 8.1%
A 0.142s 1206 13.2%
A 0.172s 1804 19.7%
A 0.202s 2489 27.2%
A 0.233s 3315 36.2%
A 0.263s 4226 46.2%
A 0.294s 5174 56.5%
A 0.324s 6046 66.0%
A 0.355s 6827 74.6%
A 0.385s 7477 81.7%
A 0.415s 8050 87.9%
A 0.446s 8503 92.9%
A 0.476s 8819 96.3%
A 0.507s 9039 98.7%
A 0.537s 9158 100.0%
B 0.020s 1 0.0%
B 0.051s 106 1.2%
B 0.081s 393 4.3%
B 0.112s 740 8.1%
B 0.142s 1233 13.5%
B 0.172s 1817 19.8%
B 0.203s 2514 27.5%
B 0.233s 3312 36.2%
B 0.264s 4228 46.2%
B 0.294s 5161 56.4%
B 0.324s 6049 66.1%
B 0.354s 6819 74.5%
B 0.385s 7474 81.6%
B 0.415s 8043 87.9%
B 0.446s 8479 92.6%
B 0.476s 8816 96.3%
B 0.506s 9040 98.8%
B 0.537s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9065 99.0%
A 0.081s 8772 95.8%
A 0.112s 8403 91.8%
A 0.142s 7952 86.9%
A 0.173s 7352 80.3%
A 0.203s 6669 72.9%
A 0.234s 5869 64.1%
A 0.264s 4922 53.8%
A 0.294s 3984 43.5%
A 0.325s 3111 34.0%
A 0.355s 2332 25.5%
A 0.386s 1669 18.2%
A 0.416s 1115 12.2%
A 0.447s 662 7.2%
A 0.477s 326 3.6%
A 0.507s 112 1.2%
A 0.538s 8 0.1%
B 0.020s 9144 99.9%
B 0.051s 9026 98.6%
B 0.081s 8763 95.7%
B 0.111s 8411 91.9%
B 0.142s 7941 86.7%
B 0.172s 7359 80.4%
B 0.202s 6671 72.9%
B 0.233s 5870 64.1%
B 0.263s 4955 54.1%
B 0.293s 4021 43.9%
B 0.324s 3136 34.3%
B 0.354s 2361 25.8%
B 0.384s 1672 18.3%
B 0.415s 1108 12.1%
B 0.445s 672 7.3%
B 0.475s 337 3.7%
B 0.506s 115 1.3%
B 0.536s 8 0.1%
A 1 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 0.537 seconds.
Shutter B opened to 99.9 percent in 0.537 seconds.
Shutter A closed to 0.1 percent in 0.538 seconds.
Shutter B closed to 0.1 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 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=9224 IDLE
Thu Jul 30 17:06:42 SAST 2026 [elapsed=317 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 30 17:06 /atlas/obs/03a/61252/03a61252e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Jul 30 17:07:04 SAST 2026 [elapsed=339 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (75 seconds old)
OTA humidity level...OK (17%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Jul 30 17:07:04 SAST 2026 [elapsed=339 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61251.62991847|info|galildriver|using focus model: foc=9187+(4.30)*14.1+(-0.40)*60.2=9223.5
61251.62992316|info|galildriver|o 2 IN | cass: 3044001 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004179 9224 um b=0f [cmd]
bestfocus for o...OK
Thu Jul 30 17:07:06 SAST 2026 [elapsed=341 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Jul 30 17:07:32 SAST 2026 [elapsed=367 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
Thu Jul 30 17:07:33 SAST 2026 [elapsed=368 sec] NOTICES: det_dzdx=-890 is outside range +-250 from -558; det_dzdy=1978 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 Jul 30 17:07:33 SAST 2026 [elapsed=368 sec] Happy observing!
Thu Jul 30 17:07:33 SAST 2026 [elapsed=368 sec] Preflight took 368 seconds to complete.
Thu Jul 30 17:07:33 SAST 2026 [elapsed=368 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 115 1.3% A 0.081s 384 4.2% A 0.111s 735 8.0% A 0.141s 1197 13.1% A 0.171s 1781 19.5% A 0.202s 2465 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5103 55.7% A 0.323s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7434 81.2% A 0.413s 8006 87.5% A 0.443s 8446 92.3% A 0.473s 8793 96.1% A 0.504s 9022 98.6% A 0.534s 9137 99.8% A 0.564s 9154 100.0% B 0.020s 2 0.0% B 0.050s 113 1.2% B 0.081s 378 4.1% B 0.111s 728 8.0% B 0.141s 1187 13.0% B 0.171s 1752 19.1% B 0.202s 2465 26.9% B 0.232s 3242 35.4% B 0.262s 4167 45.5% B 0.292s 5075 55.4% B 0.323s 5960 65.1% B 0.353s 6747 73.7% B 0.383s 7421 81.1% B 0.413s 7985 87.2% B 0.443s 8444 92.2% B 0.474s 8786 96.0% B 0.504s 9018 98.5% B 0.534s 9136 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9042 98.8% A 0.081s 8768 95.8% A 0.111s 8409 91.9% A 0.141s 7941 86.7% A 0.171s 7360 80.4% A 0.201s 6693 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.322s 3166 34.6% A 0.353s 2387 26.1% A 0.383s 1711 18.7% A 0.413s 1146 12.5% A 0.444s 692 7.6% A 0.474s 356 3.9% A 0.504s 127 1.4% A 0.534s 14 0.2% A 0.564s 0 0.0% B 0.020s 9144 99.9% B 0.050s 9019 98.5% B 0.081s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.171s 7377 80.6% B 0.201s 6689 73.1% B 0.232s 5892 64.4% B 0.262s 4982 54.4% B 0.292s 4054 44.3% B 0.322s 3162 34.5% B 0.352s 2391 26.1% B 0.383s 1723 18.8% B 0.413s 1164 12.7% B 0.443s 712 7.8% B 0.473s 367 4.0% B 0.503s 138 1.5% B 0.533s 17 0.2% B 0.564s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R