STH Recent Preflight: 61315
Executing preflight for 61315 at Thu Oct 1 17:41:30 SAST 2026.
Log can be found in /atlas/obs/03/61315/preflight.dat.
Setting donefile '/atlas/obs/03/61315/preflight_complete.20261001154130.1280' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261001154130.1280.
Thu Oct 1 17:41:30 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Oct 1 17:41:30 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [53742594-a0e3-4942-a794-dcc46d921ad1;1800]
Thu Oct 1 17:41:30 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu Oct 1 17:41:31 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Oct 1 17:41:31 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu Oct 1 17:41:31 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Oct 1 17:41:31 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1790869287
OK
Thu Oct 1 17:41:31 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Oct 1 17:41:31 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 Oct 1 17:41:33 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
Thu Oct 1 17:41:34 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Thu Oct 1 17:41:34 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Thu Oct 1 15:41:34 UTC 2026
metbox: 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 883 1024 377 1.080 -0.132 0.043
*metbox2.sth.atl .PPS. 1 u 336 1024 377 0.304 -0.121 0.020
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 1013 1024 377 23.385 -0.002 0.092
-ntp.as3741.net 155.232.19.6 2 u 967 1024 377 22.891 -0.265 0.269
-ntp2.as3741.net 155.232.19.6 2 u 292 1024 377 7.299 0.151 0.163
-ntp2.inx.net.za 183.3.52.101 2 u 943 1024 377 7.312 -0.092 0.040
-ntp2.nog.net.za 80.72.67.48 3 u 1049 1024 377 7.486 -0.030 0.038
-139.84.231.68 ( 196.21.187.2 2 u 193 1024 377 22.998 -0.479 0.973
-ntp7.inx.net.za 196.21.187.2 2 u 59 1024 377 16.486 -0.030 8.280
+tick.sanren.ac. .TC. 1 u 728 1024 377 23.230 -0.050 0.032
Thu Oct 1 17:41:36 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (5999GB)
200GB available in /atlas/red...OK (9028GB)
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/17292
admin:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/loop1 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 4.8T 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/17292
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 738G 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/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Thu Oct 1 17:41:36 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
Thu Oct 1 17:41:36 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Thu Oct 1 17:41:36 SAST 2026 [elapsed=6 sec] SERVICES2
Thu Oct 1 17:41:36 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Oct 1 17:41:41 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= 928kB time=00:00:29.69 bitrate= 256.0kbits/s speed=1.56e+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 Oct 1 17:44:13 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: 265.15 -29.49, az/alt=324.82 +86.49 idle(e) IDLE
Thu Oct 1 17:45:04 SAST 2026 [elapsed=214 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Oct 1 17:45:23 SAST 2026 [elapsed=233 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
Thu Oct 1 17:45:23 SAST 2026 [elapsed=233 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (10 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.3C)
Checking CCD plane: Z0=+1743.00 DZDX=-927.00 DZDY=+3171.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Oct 1 17:45:23 SAST 2026 [elapsed=233 sec] WEATHER
status weather: C W 18.4C 49% 34/39kph@30 DP9.8C/-18C/d IDLE
...OK
Thu Oct 1 17:45:24 SAST 2026 [elapsed=234 sec] MET
status...OK
met: c=N o=Y Ro4d Co2d Wo7d Ho7h To7d Do6d IDLE
Thu Oct 1 17:45:24 SAST 2026 [elapsed=234 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Oct 1 17:45:24 SAST 2026 [elapsed=234 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 294.06 -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 8 0.1%
A 0.051s 108 1.2%
A 0.081s 403 4.4%
A 0.111s 747 8.2%
A 0.142s 1207 13.2%
A 0.172s 1803 19.7%
A 0.203s 2489 27.2%
A 0.233s 3288 35.9%
A 0.263s 4196 45.8%
A 0.294s 5143 56.2%
A 0.324s 6017 65.7%
A 0.354s 6803 74.3%
A 0.385s 7477 81.7%
A 0.415s 8034 87.8%
A 0.445s 8491 92.8%
A 0.476s 8809 96.2%
A 0.506s 9033 98.7%
A 0.537s 9155 100.0%
B 0.020s 1 0.0%
B 0.050s 97 1.1%
B 0.081s 386 4.2%
B 0.111s 728 8.0%
B 0.142s 1197 13.1%
B 0.172s 1778 19.4%
B 0.202s 2465 26.9%
B 0.233s 3255 35.6%
B 0.263s 4166 45.5%
B 0.293s 5132 56.1%
B 0.324s 6021 65.8%
B 0.354s 6796 74.2%
B 0.384s 7455 81.4%
B 0.415s 8027 87.7%
B 0.445s 8466 92.5%
B 0.476s 8806 96.2%
B 0.506s 9034 98.7%
B 0.536s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9056 98.9%
A 0.081s 8761 95.7%
A 0.111s 8400 91.8%
A 0.142s 7952 86.9%
A 0.172s 7351 80.3%
A 0.202s 6671 72.9%
A 0.233s 5868 64.1%
A 0.263s 4953 54.1%
A 0.293s 3986 43.5%
A 0.324s 3110 34.0%
A 0.354s 2329 25.4%
A 0.385s 1672 18.3%
A 0.415s 1115 12.2%
A 0.445s 673 7.4%
A 0.476s 337 3.7%
A 0.506s 118 1.3%
A 0.537s 8 0.1%
B 0.020s 9145 99.9%
B 0.051s 9032 98.7%
B 0.081s 8772 95.8%
B 0.111s 8410 91.9%
B 0.142s 7939 86.7%
B 0.172s 7359 80.4%
B 0.202s 6671 72.9%
B 0.233s 5869 64.1%
B 0.263s 4953 54.1%
B 0.294s 4023 43.9%
B 0.324s 3138 34.3%
B 0.355s 2336 25.5%
B 0.385s 1673 18.3%
B 0.415s 1108 12.1%
B 0.446s 672 7.3%
B 0.476s 337 3.7%
B 0.506s 118 1.3%
B 0.537s 10 0.1%
B 0.567s -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 0.537 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.1 percent in 0.537 seconds.
Shutter B closed to 0.0 percent in 0.567 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 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=9304 IDLE
Thu Oct 1 17:46:01 SAST 2026 [elapsed=271 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.6 IDLE
taking preflight exposures:
acam...OK
acam image:
98M Oct 1 17:46 /atlas/obs/03a/61315/03a61315e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Oct 1 17:46:23 SAST 2026 [elapsed=293 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (85 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Oct 1 17:46:23 SAST 2026 [elapsed=293 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61314.65722371|info|galildriver|using focus model: foc=9187+(4.30)*18.5+(-0.40)*60.2=9242.5
61314.65722906|info|galildriver|o 2 IN | cass: 3036873 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54020201 9304 um b=8f M [focus]
61314.65723814|info|galildriver|o 2 IN | cass: 3036871 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54015898 9283 um b=8f M [focus]
61314.65724977|info|galildriver|o 2 IN | cass: 3036872 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54009149 9249 um b=8f M [focus]
61314.65725770|info|galildriver|o 2 IN | cass: 3036869 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54007982 9243 um b=0f [cmd]
bestfocus for o...OK
Thu Oct 1 17:46:27 SAST 2026 [elapsed=297 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Oct 1 17:46:53 SAST 2026 [elapsed=323 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 Oct 1 17:46:54 SAST 2026 [elapsed=324 sec] NOTICES: det_dzdx=-927 is outside range +-250 from -558; det_dzdy=3171 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 Oct 1 17:46:54 SAST 2026 [elapsed=324 sec] Happy observing!
Thu Oct 1 17:46:54 SAST 2026 [elapsed=324 sec] Preflight took 324 seconds to complete.
Thu Oct 1 17:46:54 SAST 2026 [elapsed=324 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 0.051s 121 1.3% A 0.081s 394 4.3% A 0.111s 735 8.0% A 0.142s 1215 13.3% A 0.172s 1804 19.7% A 0.203s 2490 27.2% A 0.233s 3296 36.0% A 0.263s 4203 45.9% A 0.294s 5133 56.1% A 0.324s 6052 66.1% A 0.355s 6819 74.5% A 0.385s 7473 81.6% A 0.416s 8036 87.8% A 0.446s 8483 92.7% A 0.476s 8810 96.2% A 0.507s 9038 98.7% A 0.537s 9143 99.9% A 0.567s 9154 100.0% B 0.020s 1 0.0% B 0.051s 121 1.3% B 0.081s 391 4.3% B 0.112s 755 8.2% B 0.142s 1236 13.5% B 0.173s 1813 19.8% B 0.203s 2515 27.5% B 0.233s 3322 36.3% B 0.264s 4259 46.5% B 0.294s 5190 56.7% B 0.325s 6067 66.3% B 0.355s 6842 74.7% B 0.385s 7498 81.9% B 0.415s 8050 87.9% B 0.446s 8495 92.8% B 0.476s 8823 96.4% B 0.507s 9039 98.7% B 0.537s 9144 99.9% B 0.567s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9049 98.9% A 0.081s 8779 95.9% A 0.112s 8420 92.0% A 0.142s 7958 86.9% A 0.172s 7380 80.6% A 0.203s 6667 72.8% A 0.233s 5867 64.1% A 0.263s 4951 54.1% A 0.294s 4008 43.8% A 0.324s 3140 34.3% A 0.354s 2363 25.8% A 0.385s 1692 18.5% A 0.415s 1130 12.3% A 0.446s 680 7.4% A 0.476s 340 3.7% A 0.507s 114 1.2% A 0.537s 10 0.1% A 0.567s 1 0.0% B 0.020s 9142 99.9% B 0.051s 9019 98.5% B 0.081s 8770 95.8% B 0.111s 8408 91.9% B 0.142s 7935 86.7% B 0.172s 7356 80.4% B 0.203s 6664 72.8% B 0.233s 5862 64.0% B 0.264s 4950 54.1% B 0.294s 3994 43.6% B 0.324s 3108 34.0% B 0.355s 2346 25.6% B 0.385s 1664 18.2% B 0.415s 1115 12.2% B 0.445s 674 7.4% B 0.476s 346 3.8% B 0.506s 121 1.3% B 0.537s 11 0.1% B 0.567s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R