STH Recent Preflight: 61194
Executing preflight for 61194 at Tue Jun 2 16:41:49 SAST 2026.
Log can be found in /atlas/obs/03/61194/preflight.dat.
Setting donefile '/atlas/obs/03/61194/preflight_complete.20260602144149.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260602144149.11042.
Tue Jun 2 16:41:49 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Jun 2 16:41:49 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [3f90bc1e-391a-497c-a330-119ae4f2e422;1800]
Tue Jun 2 16:41:49 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Jun 2 16:41:50 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Jun 2 16:41:50 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Jun 2 16:41:50 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Jun 2 16:41:50 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1780411302
OK
Tue Jun 2 16:41:50 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Jun 2 16:41:50 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
Tue Jun 2 16:41:52 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 Jun 2 16:41:52 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Jun 2 16:41:52 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Jun 2 14:41:52 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 911 1024 377 1.011 0.014 0.032
*metbox2.sth.atl .PPS. 1 u 890 1024 377 0.338 -0.032 0.030
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 876 1024 377 23.325 0.652 0.264
+ntp.as3741.net 210.182.58.253 2 u 1020 1024 377 23.046 -0.081 0.113
-ntp2.as3741.net 129.134.26.123 2 u 835 1024 277 7.266 -0.090 0.068
-ntp2.inx.net.za 183.3.52.101 2 u 371 1024 377 7.228 0.031 0.036
102.222.100.153 196.21.187.2 2 u 34d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 183.3.52.101 2 u 330 1024 377 7.537 -0.027 0.077
-flipping.cloudh 181.248.48.166 2 u 120 1024 377 7.767 0.080 0.215
102.216.37.99 ( 210.182.58.253 2 u 120d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 192 1024 377 22.754 0.206 0.677
Tue Jun 2 16:41:55 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6053GB)
200GB available in /atlas/red...OK (8838GB)
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/loop2 106M 106M 0 100% /snap/core/17284
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 21G 91G 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 5.0T 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 740G 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
Tue Jun 2 16:41:55 SAST 2026 [elapsed=6 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 Jun 2 16:41:55 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Tue Jun 2 16:41:55 SAST 2026 [elapsed=6 sec] SERVICES2
Tue Jun 2 16:41:55 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Jun 2 16:41:59 SAST 2026 [elapsed=10 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=1.52e+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 Jun 2 16:44:32 SAST 2026 [elapsed=163 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: 130.94 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Tue Jun 2 16:45:31 SAST 2026 [elapsed=222 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Jun 2 16:45:52 SAST 2026 [elapsed=243 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
Tue Jun 2 16:45:52 SAST 2026 [elapsed=243 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (1 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.7C)
Checking CCD plane: Z0=+1725.00 DZDX=-882.00 DZDY=+2690.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Jun 2 16:45:52 SAST 2026 [elapsed=243 sec] WEATHER
status weather: clear 15.3C 33% 7/8kph@324 DP15.1C/-17C/d IDLE
...OK
Tue Jun 2 16:45:53 SAST 2026 [elapsed=244 sec] MET
status...OK
met: c=N o=Y Ro12d Co11h Wo12d Ho3d To12d Do3d IDLE
Tue Jun 2 16:45:53 SAST 2026 [elapsed=244 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Jun 2 16:45:53 SAST 2026 [elapsed=244 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 159.87 -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 -1 -0.0mm 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 108 1.2%
A 0.081s 393 4.3%
A 0.111s 733 8.0%
A 0.141s 1190 13.0%
A 0.172s 1784 19.5%
A 0.202s 2489 27.2%
A 0.233s 3286 35.9%
A 0.263s 4194 45.8%
A 0.293s 5144 56.2%
A 0.323s 6018 65.7%
A 0.354s 6803 74.3%
A 0.384s 7457 81.5%
A 0.414s 8016 87.6%
A 0.445s 8479 92.6%
A 0.475s 8800 96.1%
A 0.505s 9028 98.6%
A 0.536s 9154 100.0%
B 0.020s 2 0.0%
B 0.051s 107 1.2%
B 0.081s 397 4.3%
B 0.111s 740 8.1%
B 0.142s 1216 13.3%
B 0.172s 1798 19.6%
B 0.202s 2489 27.2%
B 0.232s 3285 35.9%
B 0.263s 4199 45.9%
B 0.293s 5131 56.1%
B 0.323s 6020 65.8%
B 0.354s 6797 74.3%
B 0.384s 7456 81.5%
B 0.414s 8027 87.7%
B 0.444s 8468 92.5%
B 0.475s 8807 96.2%
B 0.505s 9034 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8773 95.8%
A 0.111s 8414 91.9%
A 0.141s 7969 87.1%
A 0.172s 7352 80.3%
A 0.202s 6669 72.9%
A 0.232s 5867 64.1%
A 0.263s 4953 54.1%
A 0.293s 4016 43.9%
A 0.323s 3137 34.3%
A 0.354s 2354 25.7%
A 0.384s 1689 18.5%
A 0.414s 1131 12.4%
A 0.445s 687 7.5%
A 0.475s 345 3.8%
A 0.505s 123 1.3%
A 0.535s 11 0.1%
A 0.566s -6 0.0%
B 0.020s 9147 99.9%
B 0.050s 9041 98.8%
B 0.081s 8782 95.9%
B 0.111s 8424 92.0%
B 0.141s 7957 86.9%
B 0.172s 7380 80.6%
B 0.202s 6694 73.1%
B 0.232s 5897 64.4%
B 0.263s 4984 54.4%
B 0.293s 4049 44.2%
B 0.323s 3164 34.6%
B 0.353s 2384 26.0%
B 0.384s 1713 18.7%
B 0.414s 1141 12.5%
B 0.444s 696 7.6%
B 0.475s 356 3.9%
B 0.505s 128 1.4%
B 0.535s 11 0.1%
B 0.566s -5 0.0%
A 1 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 0.536 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 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.09e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9231 IDLE
Tue Jun 2 16:46:49 SAST 2026 [elapsed=300 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
taking preflight exposures:
acam...OK
acam image:
124M Jun 2 16:47 /atlas/obs/03a/61194/03a61194e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Jun 2 16:47:12 SAST 2026 [elapsed=323 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (85 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Jun 2 16:47:12 SAST 2026 [elapsed=323 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61193.61611767|info|galildriver|using focus model: foc=9187+(4.30)*16.8+(-0.40)*60.2=9235.1
61193.61612291|info|galildriver|o 2 IN | cass: 3046566 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54005648 9231 um b=8f M [focus]
61193.61613352|info|galildriver|o 2 IN | cass: 3046570 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54005719 9232 um b=2f [cmd]
bestfocus for o...OK
Tue Jun 2 16:47:14 SAST 2026 [elapsed=325 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Jun 2 16:47:44 SAST 2026 [elapsed=355 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
Tue Jun 2 16:47:45 SAST 2026 [elapsed=356 sec] NOTICES: det_dzdx=-882 is outside range +-250 from -558; det_dzdy=2690 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 Jun 2 16:47:45 SAST 2026 [elapsed=356 sec] Happy observing!
Tue Jun 2 16:47:45 SAST 2026 [elapsed=356 sec] Preflight took 356 seconds to complete.
Tue Jun 2 16:47:45 SAST 2026 [elapsed=356 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 115 1.3% A 0.081s 385 4.2% A 0.111s 735 8.0% A 0.141s 1197 13.1% A 0.172s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.293s 5104 55.8% A 0.323s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7433 81.2% A 0.413s 8006 87.5% A 0.444s 8458 92.4% A 0.474s 8793 96.1% A 0.504s 9021 98.5% A 0.534s 9137 99.8% A 0.564s 9154 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1186 13.0% B 0.171s 1753 19.2% B 0.201s 2442 26.7% B 0.231s 3241 35.4% B 0.262s 4136 45.2% B 0.292s 5074 55.4% B 0.322s 5960 65.1% B 0.352s 6749 73.7% B 0.382s 7419 81.0% B 0.412s 7968 87.0% B 0.443s 8430 92.1% B 0.473s 8776 95.9% B 0.503s 9012 98.4% B 0.533s 9134 99.8% B 0.563s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9051 98.9% A 0.081s 8777 95.9% A 0.111s 8420 92.0% A 0.141s 7959 86.9% A 0.171s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5894 64.4% A 0.262s 4981 54.4% A 0.292s 4069 44.5% A 0.322s 3193 34.9% A 0.353s 2409 26.3% A 0.383s 1731 18.9% A 0.413s 1164 12.7% A 0.443s 706 7.7% A 0.474s 367 4.0% A 0.504s 131 1.4% A 0.534s 15 0.2% A 0.564s 1 0.0% B 0.020s 9143 99.9% B 0.050s 9026 98.6% B 0.081s 8780 95.9% B 0.111s 8435 92.1% B 0.141s 7969 87.1% B 0.171s 7400 80.8% B 0.201s 6714 73.3% B 0.232s 5920 64.7% B 0.262s 5011 54.7% B 0.292s 4082 44.6% B 0.323s 3192 34.9% B 0.353s 2417 26.4% B 0.383s 1724 18.8% B 0.413s 1161 12.7% B 0.444s 713 7.8% B 0.474s 365 4.0% B 0.504s 139 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