STH Recent Preflight: 61193
Executing preflight for 61193 at Mon Jun 1 16:42:02 SAST 2026.
Log can be found in /atlas/obs/03/61193/preflight.dat.
Setting donefile '/atlas/obs/03/61193/preflight_complete.20260601144202.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260601144202.11042.
Mon Jun 1 16:42:02 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Jun 1 16:42:02 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [052d0ae2-9d91-4238-a8ef-18abf8a29421;1800]
Mon Jun 1 16:42:02 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Jun 1 16:42:03 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Jun 1 16:42:03 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Mon Jun 1 16:42:03 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Jun 1 16:42:03 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1780324915
OK
Mon Jun 1 16:42:03 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Jun 1 16:42:03 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
Mon Jun 1 16:42:05 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
Mon Jun 1 16:42:05 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Jun 1 16:42:05 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Mon Jun 1 14:42:05 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 79 1024 377 1.028 -0.060 0.618
*metbox2.sth.atl .PPS. 1 u 219 1024 377 0.304 -0.145 0.102
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 904 1024 377 23.303 0.024 0.358
+ntp.as3741.net 210.182.58.253 2 u 67 1024 377 22.787 -0.151 1.184
-ntp2.as3741.net 129.134.26.123 2 u 939 1024 377 7.232 -0.366 0.110
-ntp2.inx.net.za 210.182.58.253 2 u 323 1024 377 7.216 -0.058 0.097
102.222.100.153 196.21.187.2 2 u 33d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 196.21.187.2 2 u 505 1024 377 7.475 -0.046 0.626
-flipping.cloudh 148.25.117.73 2 u 26 1024 377 7.754 -0.251 0.204
102.216.37.99 ( 210.182.58.253 2 u 119d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 119 1024 377 22.807 -0.334 0.914
Mon Jun 1 16:42:18 SAST 2026 [elapsed=16 sec] DISKS
200GB available in /atlas/obs...OK (6086GB)
200GB available in /atlas/red...OK (8905GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.5T 5.9T 44% /
admin:/dev/loop2 106M 106M 0 100% /snap/core/17284
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 21G 90G 19% /
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
tcs:/dev/mapper/ubuntu--vg-ubuntu--lv 98G 37G 57G 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 4.9T 8.5T 37% /
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/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 739G 13T 6% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Mon Jun 1 16:42:18 SAST 2026 [elapsed=16 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
Mon Jun 1 16:42:18 SAST 2026 [elapsed=16 sec] Disabling mount tracking.
Mon Jun 1 16:42:18 SAST 2026 [elapsed=16 sec] SERVICES2
Mon Jun 1 16:42:18 SAST 2026 [elapsed=16 sec] CHILLER
status...OK
chiller: 3.1/3.0C ? chiller=ON dryer=? IDLE
Mon Jun 1 16:42:23 SAST 2026 [elapsed=21 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= 928kB time=00:00:29.69 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
Mon Jun 1 16:44:56 SAST 2026 [elapsed=174 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: 130.06 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Mon Jun 1 16:45:55 SAST 2026 [elapsed=233 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Jun 1 16:46:16 SAST 2026 [elapsed=254 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.3 IDLE
Mon Jun 1 16:46:16 SAST 2026 [elapsed=254 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.7C)
Checking CCD plane: Z0=+1726.00 DZDX=-887.00 DZDY=+2767.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Jun 1 16:46:16 SAST 2026 [elapsed=254 sec] WEATHER
status weather: C 16.5C 50% 27/33kph@29 DP11.1C/36C/d IDLE
...OK
Mon Jun 1 16:46:17 SAST 2026 [elapsed=255 sec] MET
status...OK
met: c=N o=Y Ro11d Co1d Wo11d Ho2d To11d Do2d IDLE
Mon Jun 1 16:46:17 SAST 2026 [elapsed=255 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Jun 1 16:46:17 SAST 2026 [elapsed=255 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 158.98 -14.63, 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 -1 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 7 0.1%
A 0.051s 115 1.3%
A 0.081s 404 4.4%
A 0.111s 745 8.1%
A 0.141s 1208 13.2%
A 0.172s 1805 19.7%
A 0.202s 2488 27.2%
A 0.232s 3286 35.9%
A 0.263s 4195 45.8%
A 0.293s 5143 56.2%
A 0.323s 6018 65.7%
A 0.353s 6804 74.3%
A 0.384s 7456 81.5%
A 0.414s 8016 87.6%
A 0.444s 8480 92.6%
A 0.475s 8800 96.1%
A 0.505s 9028 98.6%
A 0.535s 9154 100.0%
B 0.020s 1 0.0%
B 0.050s 102 1.1%
B 0.081s 396 4.3%
B 0.111s 726 7.9%
B 0.141s 1215 13.3%
B 0.172s 1798 19.6%
B 0.202s 2488 27.2%
B 0.232s 3284 35.9%
B 0.263s 4197 45.8%
B 0.293s 5133 56.1%
B 0.323s 6019 65.8%
B 0.354s 6796 74.2%
B 0.384s 7456 81.5%
B 0.414s 8027 87.7%
B 0.444s 8467 92.5%
B 0.475s 8807 96.2%
B 0.505s 9034 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9063 99.0%
A 0.081s 8773 95.8%
A 0.111s 8414 91.9%
A 0.142s 7951 86.9%
A 0.172s 7352 80.3%
A 0.202s 6669 72.9%
A 0.233s 5868 64.1%
A 0.263s 4954 54.1%
A 0.293s 4016 43.9%
A 0.324s 3137 34.3%
A 0.354s 2356 25.7%
A 0.384s 1689 18.5%
A 0.415s 1131 12.4%
A 0.445s 687 7.5%
A 0.475s 345 3.8%
A 0.506s 123 1.3%
A 0.536s 11 0.1%
A 0.566s -6 0.0%
B 0.020s 9146 99.9%
B 0.051s 9035 98.7%
B 0.081s 8772 95.8%
B 0.111s 8423 92.0%
B 0.142s 7957 86.9%
B 0.172s 7380 80.6%
B 0.202s 6695 73.1%
B 0.232s 5897 64.4%
B 0.263s 4985 54.5%
B 0.293s 4048 44.2%
B 0.323s 3165 34.6%
B 0.353s 2384 26.0%
B 0.384s 1713 18.7%
B 0.414s 1142 12.5%
B 0.444s 696 7.6%
B 0.474s 356 3.9%
B 0.505s 128 1.4%
B 0.535s 12 0.1%
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 0.0 percent in 0.566 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=1.12e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9230 IDLE
Mon Jun 1 16:47:15 SAST 2026 [elapsed=313 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.3 IDLE
taking preflight exposures:
acam...OK
acam image:
124M Jun 1 16:47 /atlas/obs/03a/61193/03a61193e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Jun 1 16:47:37 SAST 2026 [elapsed=335 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (21 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Jun 1 16:47:38 SAST 2026 [elapsed=336 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61192.61641600|info|galildriver|using focus model: foc=9187+(4.30)*16.8+(-0.40)*60.2=9235.1
61192.61642124|info|galildriver|o 2 IN | cass: 3046447 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54005551 9231 um b=8f M [focus]
61192.61643185|info|galildriver|o 2 IN | cass: 3046445 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54005639 9231 um b=2f [cmd]
bestfocus for o...OK
Mon Jun 1 16:47:40 SAST 2026 [elapsed=338 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Jun 1 16:48:10 SAST 2026 [elapsed=368 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
Mon Jun 1 16:48:11 SAST 2026 [elapsed=369 sec] NOTICES: det_dzdx=-887 is outside range +-250 from -558; det_dzdy=2767 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Mon Jun 1 16:48:11 SAST 2026 [elapsed=369 sec] Happy observing!
Mon Jun 1 16:48:11 SAST 2026 [elapsed=369 sec] Preflight took 369 seconds to complete.
Mon Jun 1 16:48:11 SAST 2026 [elapsed=369 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 3 0.0% A 0.051s 114 1.2% A 0.081s 386 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.172s 1782 19.5% A 0.202s 2465 26.9% A 0.232s 3267 35.7% A 0.262s 4174 45.6% A 0.293s 5103 55.7% A 0.323s 5997 65.5% A 0.354s 6775 74.0% A 0.384s 7433 81.2% A 0.414s 8004 87.4% A 0.444s 8458 92.4% A 0.475s 8793 96.1% A 0.505s 9026 98.6% A 0.535s 9139 99.8% A 0.566s 9154 100.0% B 0.020s 2 0.0% B 0.050s 111 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1203 13.1% B 0.171s 1774 19.4% B 0.202s 2467 26.9% B 0.232s 3268 35.7% B 0.262s 4167 45.5% B 0.292s 5103 55.7% B 0.323s 5988 65.4% B 0.353s 6772 74.0% B 0.383s 7440 81.3% B 0.413s 8001 87.4% B 0.443s 8455 92.4% B 0.474s 8795 96.1% B 0.504s 9022 98.6% B 0.534s 9138 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8422 92.0% A 0.141s 7957 86.9% A 0.172s 7380 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4983 54.4% A 0.293s 4038 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1731 18.9% A 0.413s 1163 12.7% A 0.444s 706 7.7% A 0.474s 367 4.0% A 0.504s 132 1.4% A 0.534s 15 0.2% A 0.564s 1 0.0% B 0.020s 9146 99.9% B 0.050s 9025 98.6% B 0.081s 8780 95.9% B 0.111s 8433 92.1% B 0.141s 7968 87.0% B 0.171s 7400 80.8% B 0.201s 6713 73.3% B 0.232s 5920 64.7% B 0.262s 5011 54.7% B 0.292s 4083 44.6% B 0.322s 3192 34.9% B 0.353s 2417 26.4% B 0.383s 1723 18.8% B 0.413s 1162 12.7% B 0.443s 713 7.8% B 0.474s 365 4.0% B 0.504s 138 1.5% B 0.534s 16 0.2% B 0.564s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R