STH Recent Preflight: 61336
Executing preflight for 61336 at Thu Oct 22 17:56:44 SAST 2026.
Log can be found in /atlas/obs/03/61336/preflight.dat.
Setting donefile '/atlas/obs/03/61336/preflight_complete.20261022155644.2653' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261022155644.2653.
Thu Oct 22 17:56:44 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Oct 22 17:56:44 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [0cd67d1a-f21c-47d9-8f32-df7914c22de5;1800]
Thu Oct 22 17:56:44 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu Oct 22 17:56:45 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Oct 22 17:56:45 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu Oct 22 17:56:45 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Oct 22 17:56:45 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1792684603
OK
Thu Oct 22 17:56:45 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Oct 22 17:56:45 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 22 17:56:47 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 22 17:56:47 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Oct 22 17:56:47 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Thu Oct 22 15:56:47 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 1869 1024 352 1.001 -0.027 0.050
*metbox2.sth.atl .PPS. 1 u 437 1024 377 0.303 -0.005 0.055
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 99 1024 377 23.258 -0.066 0.931
-ntp.as3741.net 210.182.58.253 2 u 282 1024 377 22.743 -0.114 2.560
-ntp2.as3741.net 146.64.58.41 2 u 509 1024 377 7.245 0.137 0.083
-ntp2.inx.net.za 183.3.52.101 2 u 847 1024 377 7.287 -0.031 0.069
+ntp2.nog.net.za 80.72.67.48 3 u 404 1024 377 7.507 0.051 0.059
-139.84.231.68 ( 196.21.187.2 2 u 755 1024 377 22.773 0.144 0.538
-ntp7.inx.net.za 102.176.229.251 2 u 298 1024 377 16.424 0.272 0.127
+tick.sanren.ac. .TC. 1 u 1051 1024 377 23.201 0.101 0.071
Thu Oct 22 17:56:49 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6415GB)
200GB available in /atlas/red...OK (9699GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.1T 6.2T 41% /
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 4.2T 9.3T 31% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.8T 12T 13% /
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 22 17:56:49 SAST 2026 [elapsed=5 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 22 17:56:49 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Thu Oct 22 17:56:50 SAST 2026 [elapsed=6 sec] SERVICES2
Thu Oct 22 17:56:50 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.1/3.0C ? chiller=ON dryer=? IDLE
Thu Oct 22 17:56:55 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= 916kB time=00:00:29.31 bitrate= 256.0kbits/s speed=1.49e+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 22 18:00:10 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: 289.84 -29.49, az/alt=324.73 +86.49 idle(e) IDLE
Thu Oct 22 18:01:01 SAST 2026 [elapsed=257 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Oct 22 18:01:20 SAST 2026 [elapsed=276 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Thu Oct 22 18:01:20 SAST 2026 [elapsed=276 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (7 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.6C)
Checking CCD plane: Z0=+1716.00 DZDX=-913.00 DZDY=+2551.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Oct 22 18:01:20 SAST 2026 [elapsed=276 sec] WEATHER
status weather: C W 11.1C 66% 43/52kph@297 DP5.2C/-37C/d IDLE
...OK
Thu Oct 22 18:01:21 SAST 2026 [elapsed=277 sec] MET
status...OK
met: c=N o=N Ro16d Cs0 Ws0 Ho5h To28d Do1d wait CW IDLE
Thu Oct 22 18:01:21 SAST 2026 [elapsed=277 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Oct 22 18:01:21 SAST 2026 [elapsed=277 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 318.76 -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 7 0.1%
A 0.051s 101 1.1%
A 0.081s 381 4.2%
A 0.111s 721 7.9%
A 0.142s 1190 13.0%
A 0.172s 1783 19.5%
A 0.202s 2466 26.9%
A 0.233s 3258 35.6%
A 0.263s 4164 45.5%
A 0.293s 5115 55.9%
A 0.324s 5991 65.4%
A 0.354s 6780 74.1%
A 0.384s 7440 81.3%
A 0.414s 8000 87.4%
A 0.445s 8466 92.5%
A 0.475s 8792 96.0%
A 0.505s 9020 98.5%
A 0.535s 9152 100.0%
B 0.020s 1 0.0%
B 0.051s 90 1.0%
B 0.081s 373 4.1%
B 0.111s 713 7.8%
B 0.142s 1197 13.1%
B 0.172s 1757 19.2%
B 0.202s 2441 26.7%
B 0.232s 3231 35.3%
B 0.263s 4166 45.5%
B 0.293s 5100 55.7%
B 0.323s 5992 65.5%
B 0.354s 6776 74.0%
B 0.384s 7435 81.2%
B 0.414s 8010 87.5%
B 0.445s 8455 92.4%
B 0.475s 8799 96.1%
B 0.505s 9028 98.6%
B 0.536s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9070 99.1%
A 0.081s 8784 96.0%
A 0.111s 8425 92.0%
A 0.141s 7986 87.2%
A 0.172s 7394 80.8%
A 0.202s 6716 73.4%
A 0.232s 5924 64.7%
A 0.262s 5012 54.8%
A 0.293s 4073 44.5%
A 0.323s 3193 34.9%
A 0.353s 2400 26.2%
A 0.383s 1729 18.9%
A 0.414s 1164 12.7%
A 0.444s 710 7.8%
A 0.474s 365 4.0%
A 0.505s 134 1.5%
A 0.535s 14 0.2%
A 0.565s -6 0.0%
B 0.020s 9145 99.9%
B 0.050s 9032 98.7%
B 0.081s 8773 95.8%
B 0.111s 8423 92.0%
B 0.141s 7958 86.9%
B 0.172s 7380 80.6%
B 0.202s 6693 73.1%
B 0.232s 5897 64.4%
B 0.262s 4985 54.5%
B 0.293s 4050 44.2%
B 0.323s 3165 34.6%
B 0.353s 2383 26.0%
B 0.383s 1731 18.9%
B 0.414s 1141 12.5%
B 0.444s 709 7.7%
B 0.474s 365 4.0%
B 0.504s 132 1.4%
B 0.535s 15 0.2%
B 0.565s -6 0.0%
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 0.535 seconds.
Shutter B opened to 99.9 percent in 0.536 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= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.06e+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
Thu Oct 22 18:01:56 SAST 2026 [elapsed=312 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:
127M Oct 22 18:02 /atlas/obs/03a/61336/03a61336e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Oct 22 18:02:19 SAST 2026 [elapsed=335 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (52 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Oct 22 18:02:19 SAST 2026 [elapsed=335 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61335.66828481|info|galildriver|using focus model: foc=9187+(4.30)*15.4+(-0.40)*60.1=9229.2
61335.66828948|info|galildriver|o 2 IN | cass: 3037745 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54005396 9230 um b=0f [cmd]
bestfocus for o...OK
Thu Oct 22 18:02:21 SAST 2026 [elapsed=337 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Oct 22 18:02:47 SAST 2026 [elapsed=363 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 22 18:02:48 SAST 2026 [elapsed=364 sec] NOTICES: det_dzdx=-913 is outside range +-250 from -558; det_dzdy=2551 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 22 18:02:48 SAST 2026 [elapsed=364 sec] Happy observing!
Thu Oct 22 18:02:48 SAST 2026 [elapsed=364 sec] Preflight took 364 seconds to complete.
Thu Oct 22 18:02:48 SAST 2026 [elapsed=364 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 121 1.3% A 0.081s 397 4.3% A 0.111s 750 8.2% A 0.141s 1213 13.3% A 0.171s 1804 19.7% A 0.202s 2465 26.9% A 0.232s 3293 36.0% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.323s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7432 81.2% A 0.413s 8004 87.4% A 0.443s 8458 92.4% A 0.474s 8793 96.1% A 0.504s 9027 98.6% A 0.534s 9138 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 111 1.2% B 0.081s 380 4.2% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1773 19.4% B 0.202s 2465 26.9% B 0.232s 3269 35.7% B 0.262s 4168 45.5% B 0.292s 5103 55.7% B 0.323s 5987 65.4% B 0.353s 6771 74.0% B 0.383s 7441 81.3% B 0.413s 8002 87.4% B 0.443s 8444 92.2% B 0.474s 8786 96.0% B 0.504s 9023 98.6% B 0.534s 9136 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9155 100.0% A 0.050s 9052 98.9% A 0.081s 8793 96.1% A 0.111s 8436 92.2% A 0.141s 7978 87.2% A 0.171s 7404 80.9% A 0.202s 6718 73.4% A 0.232s 5926 64.7% A 0.262s 5016 54.8% A 0.292s 4069 44.5% A 0.323s 3198 34.9% A 0.353s 2408 26.3% A 0.383s 1731 18.9% A 0.413s 1164 12.7% A 0.444s 704 7.7% A 0.474s 368 4.0% A 0.504s 130 1.4% A 0.534s 15 0.2% A 0.565s 2 0.0% B 0.020s 9144 99.9% B 0.050s 9025 98.6% B 0.081s 8780 95.9% B 0.111s 8434 92.1% B 0.141s 7969 87.1% B 0.171s 7399 80.8% B 0.202s 6712 73.3% B 0.232s 5918 64.6% B 0.262s 5010 54.7% B 0.292s 4084 44.6% B 0.323s 3190 34.8% B 0.353s 2417 26.4% B 0.383s 1725 18.8% B 0.413s 1160 12.7% B 0.443s 712 7.8% B 0.474s 364 4.0% B 0.504s 138 1.5% B 0.534s 15 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R