STH Recent Preflight: 61231
Executing preflight for 61231 at Thu Jul 9 16:48:49 SAST 2026.
Log can be found in /atlas/obs/03/61231/preflight.dat.
Setting donefile '/atlas/obs/03/61231/preflight_complete.20260709144849.2231' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260709144849.2231.
Thu Jul 9 16:48:49 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Jul 9 16:48:49 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [a43e7dc8-6ea8-4ca8-b972-7f3f4a0a9bfd;1800]
Thu Jul 9 16:48:49 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu Jul 9 16:48:50 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Jul 9 16:48:50 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu Jul 9 16:48:50 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Jul 9 16:48:50 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1783608528
OK
Thu Jul 9 16:48:50 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Jul 9 16:48:50 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 9 16:48:53 SAST 2026 [elapsed=4 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 9 16:48:53 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Thu Jul 9 16:48:53 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Thu Jul 9 14:48:53 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 3 1024 377 1.051 -0.022 0.118
*metbox2.sth.atl .PPS. 1 u 487 1024 377 0.267 -0.042 0.115
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 312 1024 377 23.294 0.192 0.167
+ntp.as3741.net 210.182.58.253 2 u 143 1024 377 22.787 -0.087 0.572
+ntp2.as3741.net 155.232.19.7 2 u 195 1024 377 7.562 -0.170 0.302
-ntp2.inx.net.za 183.3.52.101 2 u 330 1024 377 7.360 -0.025 0.532
+ntp5.inx.net.za 183.3.52.101 2 u 1011 1024 377 7.485 -0.101 0.124
#102.222.156.151 196.21.187.2 2 u 1282 1024 376 23.374 -0.629 0.421
+102.222.103.99 80.72.67.48 3 u 2 1024 377 7.544 0.006 0.120
+139.84.231.68 ( 196.21.187.2 2 u 351 1024 377 22.773 -0.120 0.164
-ntp8.inx.net.za 102.176.229.251 2 u 504 1024 377 16.795 -0.216 0.303
Thu Jul 9 16:48:55 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6037GB)
200GB available in /atlas/red...OK (9039GB)
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/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 4.8T 8.7T 36% /
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 15% /
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 9 16:48:56 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
Thu Jul 9 16:48:56 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Thu Jul 9 16:48:56 SAST 2026 [elapsed=7 sec] SERVICES2
Thu Jul 9 16:48:56 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Jul 9 16:49:00 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= 922kB time=00:00:29.50 bitrate= 256.0kbits/s speed=1.42e+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 9 16:52:15 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: 169.49 -29.49, az/alt=324.74 +86.49 idle(e) IDLE
Thu Jul 9 16:53:46 SAST 2026 [elapsed=297 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Jul 9 16:54:05 SAST 2026 [elapsed=316 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Thu Jul 9 16:54:05 SAST 2026 [elapsed=316 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (6 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.3C)
Checking CCD plane: Z0=+1719.00 DZDX=-875.00 DZDY=+2638.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Jul 9 16:54:05 SAST 2026 [elapsed=316 sec] WEATHER
status weather: clear 12.0C 55% 16/19kph@287 DP6.8C/-63C/d IDLE
...OK
Thu Jul 9 16:54:06 SAST 2026 [elapsed=317 sec] MET
status...OK
met: c=N o=Y Ro10d Co6d Wo10d Ho6d To21d Do6d IDLE
Thu Jul 9 16:54:06 SAST 2026 [elapsed=317 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Jul 9 16:54:06 SAST 2026 [elapsed=317 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 198.40 -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 8 0.1%
A 0.051s 108 1.2%
A 0.081s 392 4.3%
A 0.111s 734 8.0%
A 0.142s 1190 13.0%
A 0.172s 1783 19.5%
A 0.202s 2466 26.9%
A 0.232s 3259 35.6%
A 0.263s 4164 45.5%
A 0.293s 5114 55.9%
A 0.323s 5990 65.4%
A 0.354s 6780 74.1%
A 0.384s 7439 81.3%
A 0.414s 7999 87.4%
A 0.444s 8466 92.5%
A 0.475s 8792 96.0%
A 0.505s 9021 98.5%
A 0.535s 9152 100.0%
B 0.020s 1 0.0%
B 0.050s 95 1.0%
B 0.081s 384 4.2%
B 0.111s 727 7.9%
B 0.141s 1196 13.1%
B 0.171s 1778 19.4%
B 0.202s 2465 26.9%
B 0.232s 3258 35.6%
B 0.262s 4167 45.5%
B 0.292s 5103 55.7%
B 0.323s 5991 65.4%
B 0.353s 6775 74.0%
B 0.383s 7435 81.2%
B 0.414s 8010 87.5%
B 0.444s 8456 92.4%
B 0.474s 8798 96.1%
B 0.504s 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 8761 95.7%
A 0.111s 8402 91.8%
A 0.141s 7952 86.9%
A 0.172s 7352 80.3%
A 0.202s 6670 72.9%
A 0.232s 5869 64.1%
A 0.263s 4952 54.1%
A 0.293s 4013 43.8%
A 0.323s 3140 34.3%
A 0.353s 2353 25.7%
A 0.384s 1689 18.5%
A 0.414s 1133 12.4%
A 0.444s 685 7.5%
A 0.475s 344 3.8%
A 0.505s 124 1.4%
A 0.535s 10 0.1%
A 0.565s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9039 98.7%
B 0.081s 8782 95.9%
B 0.111s 8436 92.2%
B 0.141s 7974 87.1%
B 0.171s 7400 80.8%
B 0.202s 6716 73.4%
B 0.232s 5924 64.7%
B 0.262s 5014 54.8%
B 0.293s 4080 44.6%
B 0.323s 3191 34.9%
B 0.353s 2407 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 0.505s 133 1.5%
B 0.535s 17 0.2%
B 0.565s -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 0.535 seconds.
Shutter B opened to 99.9 percent in 0.535 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=1.01e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9236 IDLE
Thu Jul 9 16:54:43 SAST 2026 [elapsed=354 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 9 16:55 /atlas/obs/03a/61231/03a61231e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Jul 9 16:55:06 SAST 2026 [elapsed=377 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (77 seconds old)
OTA humidity level...OK (15%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Jul 9 16:55:06 SAST 2026 [elapsed=377 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61230.62160555|info|galildriver|using focus model: foc=9187+(4.30)*16.9+(-0.40)*60.2=9235.6
61230.62161022|info|galildriver|o 2 IN | cass: 3044576 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006664 9236 um b=0f [cmd]
bestfocus for o...OK
Thu Jul 9 16:55:07 SAST 2026 [elapsed=378 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Jul 9 16:55:33 SAST 2026 [elapsed=404 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
Thu Jul 9 16:55:34 SAST 2026 [elapsed=405 sec] NOTICES: det_dzdx=-875 is outside range +-250 from -558; det_dzdy=2638 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 9 16:55:34 SAST 2026 [elapsed=405 sec] Happy observing!
Thu Jul 9 16:55:34 SAST 2026 [elapsed=405 sec] Preflight took 405 seconds to complete.
Thu Jul 9 16:55:34 SAST 2026 [elapsed=405 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 114 1.2% A 0.081s 386 4.2% A 0.111s 749 8.2% A 0.141s 1197 13.1% A 0.171s 1784 19.5% A 0.201s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5103 55.7% A 0.322s 5998 65.5% A 0.353s 6775 74.0% A 0.383s 7432 81.2% A 0.413s 8006 87.5% A 0.444s 8457 92.4% A 0.474s 8792 96.0% A 0.504s 9027 98.6% A 0.534s 9137 99.8% A 0.565s 9153 100.0% B 0.020s 0 0.0% B 0.050s 114 1.2% B 0.081s 379 4.1% B 0.111s 727 7.9% B 0.141s 1201 13.1% B 0.172s 1772 19.4% B 0.202s 2465 26.9% B 0.232s 3269 35.7% B 0.262s 4167 45.5% B 0.292s 5101 55.7% B 0.323s 5986 65.4% B 0.353s 6773 74.0% B 0.383s 7442 81.3% B 0.413s 8002 87.4% B 0.444s 8457 92.4% B 0.474s 8796 96.1% B 0.504s 9022 98.6% B 0.534s 9138 99.8% B 0.565s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9147 99.9% A 0.050s 9046 98.8% A 0.081s 8771 95.8% A 0.111s 8417 91.9% A 0.141s 7954 86.9% A 0.171s 7376 80.6% A 0.202s 6688 73.1% A 0.232s 5890 64.3% A 0.262s 4978 54.4% A 0.292s 4034 44.1% A 0.323s 3162 34.5% A 0.353s 2384 26.0% A 0.383s 1714 18.7% A 0.414s 1147 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 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9019 98.5% B 0.081s 8770 95.8% B 0.111s 8422 92.0% B 0.141s 7954 86.9% B 0.171s 7379 80.6% B 0.202s 6690 73.1% B 0.232s 5892 64.4% B 0.262s 4980 54.4% B 0.292s 4054 44.3% B 0.323s 3163 34.6% B 0.353s 2393 26.1% B 0.383s 1703 18.6% B 0.413s 1147 12.5% B 0.444s 701 7.7% B 0.474s 366 4.0% B 0.504s 133 1.5% B 0.534s 17 0.2% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R