STH Recent Preflight: 61326
Executing preflight for 61326 at Mon Oct 12 17:49:04 SAST 2026.
Log can be found in /atlas/obs/03/61326/preflight.dat.
Setting donefile '/atlas/obs/03/61326/preflight_complete.20261012154904.7230' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261012154904.7230.
Mon Oct 12 17:49:04 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Oct 12 17:49:04 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [3f8d029c-2431-45df-a6a6-e745b60150b4;1800]
Mon Oct 12 17:49:04 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Oct 12 17:49:05 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Oct 12 17:49:05 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Mon Oct 12 17:49:05 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Oct 12 17:49:05 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1791820136
OK
Mon Oct 12 17:49:05 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Oct 12 17:49:05 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 Oct 12 17:49:07 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 Oct 12 17:49:07 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Oct 12 17:49:07 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Mon Oct 12 15:49:07 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 205 1024 377 0.928 0.024 0.120
+metbox2.sth.atl .PPS. 1 u 93 1024 377 0.325 -0.050 2.047
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 155.232.19.6 2 u 566 1024 377 23.318 -0.003 1.025
+ntp.as3741.net 146.64.58.41 2 u 85 1024 377 23.192 -0.147 6.302
-ntp2.as3741.net 102.176.229.251 2 u 867 1024 377 7.299 -0.166 1.993
+ntp2.inx.net.za 183.3.52.101 2 u 602 1024 377 7.267 -0.046 0.110
+ntp2.nog.net.za 80.72.67.48 3 u 764 1024 377 7.554 0.044 0.121
-139.84.231.68 ( 196.21.187.2 2 u 505 1024 377 22.753 -0.454 0.747
-ntp7.inx.net.za 102.176.229.251 2 u 138 1024 377 16.559 -0.226 1.715
+tick.sanren.ac. .TC. 1 u 996 1024 377 23.231 0.065 0.233
Mon Oct 12 17:49:09 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6023GB)
200GB available in /atlas/red...OK (9411GB)
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 4.4T 9.0T 33% /
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
Mon Oct 12 17:49:10 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
Mon Oct 12 17:49:10 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Mon Oct 12 17:49:10 SAST 2026 [elapsed=6 sec] SERVICES2
Mon Oct 12 17:49:10 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Oct 12 17:49:14 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=1.41e+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 Oct 12 17:52:29 SAST 2026 [elapsed=205 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: 278.06 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Mon Oct 12 17:53:20 SAST 2026 [elapsed=256 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Oct 12 17:53:39 SAST 2026 [elapsed=275 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Mon Oct 12 17:53:39 SAST 2026 [elapsed=275 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 (-54.3C)
Checking CCD plane: Z0=+1742.00 DZDX=-921.00 DZDY=+3130.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Oct 12 17:53:39 SAST 2026 [elapsed=275 sec] WEATHER
status weather: C+ 14.0C 49% 26/30kph@294 DP9.5C/-38C/d IDLE
...OK
Mon Oct 12 17:53:40 SAST 2026 [elapsed=276 sec] MET
status...OK
met: c=Y o=N Ro6d Cx8 Wo5d Ho5d To18d Do4d wait C IDLE
Mon Oct 12 17:53:40 SAST 2026 [elapsed=276 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Oct 12 17:53:41 SAST 2026 [elapsed=277 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 306.97 -14.63, az/alt=59.90 +60.05 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 -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 105 1.1%
A 0.081s 390 4.3%
A 0.111s 735 8.0%
A 0.142s 1188 13.0%
A 0.172s 1783 19.5%
A 0.202s 2468 27.0%
A 0.233s 3258 35.6%
A 0.263s 4162 45.5%
A 0.293s 5117 55.9%
A 0.324s 5992 65.5%
A 0.354s 6801 74.3%
A 0.385s 7462 81.5%
A 0.415s 8019 87.6%
A 0.446s 8473 92.6%
A 0.476s 8799 96.1%
A 0.506s 9029 98.6%
A 0.537s 9151 100.0%
B 0.020s 2 0.0%
B 0.051s 100 1.1%
B 0.081s 392 4.3%
B 0.111s 742 8.1%
B 0.142s 1216 13.3%
B 0.172s 1796 19.6%
B 0.202s 2515 27.5%
B 0.233s 3311 36.2%
B 0.263s 4226 46.2%
B 0.293s 5159 56.4%
B 0.324s 6050 66.1%
B 0.354s 6818 74.5%
B 0.384s 7476 81.7%
B 0.415s 8043 87.9%
B 0.445s 8480 92.6%
B 0.475s 8817 96.3%
B 0.506s 9039 98.7%
B 0.536s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8772 95.8%
A 0.111s 8414 91.9%
A 0.142s 7968 87.0%
A 0.172s 7374 80.6%
A 0.202s 6692 73.1%
A 0.233s 5897 64.4%
A 0.263s 4983 54.4%
A 0.293s 4013 43.8%
A 0.324s 3138 34.3%
A 0.354s 2354 25.7%
A 0.384s 1688 18.4%
A 0.415s 1130 12.3%
A 0.445s 686 7.5%
A 0.475s 344 3.8%
A 0.506s 123 1.3%
A 0.536s 13 0.1%
A 0.566s -6 0.0%
B 0.020s 9145 99.9%
B 0.050s 9033 98.7%
B 0.081s 8773 95.8%
B 0.111s 8424 92.0%
B 0.142s 7957 86.9%
B 0.172s 7381 80.6%
B 0.202s 6693 73.1%
B 0.233s 5897 64.4%
B 0.263s 4984 54.4%
B 0.294s 4025 44.0%
B 0.324s 3160 34.5%
B 0.354s 2361 25.8%
B 0.385s 1691 18.5%
B 0.415s 1124 12.3%
B 0.445s 684 7.5%
B 0.476s 350 3.8%
B 0.506s 121 1.3%
B 0.536s 8 0.1%
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 0.537 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.566 seconds.
Shutter B closed to 0.1 percent in 0.536 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=9237 IDLE
Mon Oct 12 17:54:19 SAST 2026 [elapsed=315 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:
124M Oct 12 17:54 /atlas/obs/03a/61326/03a61326e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Oct 12 17:54:41 SAST 2026 [elapsed=337 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (44 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Oct 12 17:54:41 SAST 2026 [elapsed=337 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61325.66298390|info|galildriver|using focus model: foc=9187+(4.30)*17.1+(-0.40)*60.2=9236.4
61325.66298858|info|galildriver|o 2 IN | cass: 3038005 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54006806 9237 um b=0f [cmd]
bestfocus for o...OK
Mon Oct 12 17:54:43 SAST 2026 [elapsed=339 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Oct 12 17:55:09 SAST 2026 [elapsed=365 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 Oct 12 17:55:11 SAST 2026 [elapsed=367 sec] NOTICES: det_dzdx=-921 is outside range +-250 from -558; det_dzdy=3130 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 Oct 12 17:55:11 SAST 2026 [elapsed=367 sec] Happy observing!
Mon Oct 12 17:55:11 SAST 2026 [elapsed=367 sec] Preflight took 367 seconds to complete.
Mon Oct 12 17:55:11 SAST 2026 [elapsed=367 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 113 1.2% A 0.081s 385 4.2% A 0.111s 736 8.0% A 0.142s 1197 13.1% A 0.172s 1781 19.5% A 0.203s 2465 26.9% A 0.233s 3266 35.7% A 0.263s 4174 45.6% A 0.294s 5104 55.8% A 0.324s 5997 65.5% A 0.354s 6775 74.0% A 0.384s 7432 81.2% A 0.415s 8002 87.4% A 0.445s 8460 92.4% A 0.475s 8795 96.1% A 0.506s 9027 98.6% A 0.536s 9142 99.9% A 0.567s 9155 100.0% B 0.020s 1 0.0% B 0.051s 112 1.2% B 0.081s 378 4.1% B 0.112s 728 8.0% B 0.142s 1203 13.1% B 0.172s 1773 19.4% B 0.203s 2466 26.9% B 0.233s 3295 36.0% B 0.263s 4197 45.8% B 0.294s 5133 56.1% B 0.324s 6017 65.7% B 0.355s 6793 74.2% B 0.385s 7458 81.5% B 0.416s 8033 87.8% B 0.446s 8482 92.7% B 0.477s 8815 96.3% B 0.507s 9034 98.7% B 0.538s 9143 99.9% B 0.568s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9044 98.8% A 0.081s 8770 95.8% A 0.111s 8409 91.9% A 0.142s 7942 86.8% A 0.172s 7362 80.4% A 0.203s 6645 72.6% A 0.233s 5840 63.8% A 0.263s 4921 53.8% A 0.294s 3979 43.5% A 0.324s 3115 34.0% A 0.355s 2340 25.6% A 0.385s 1671 18.3% A 0.415s 1112 12.1% A 0.446s 667 7.3% A 0.476s 331 3.6% A 0.506s 107 1.2% A 0.537s 8 0.1% B 0.020s 9142 99.9% B 0.051s 9014 98.5% B 0.081s 8762 95.7% B 0.112s 8409 91.9% B 0.142s 7935 86.7% B 0.172s 7357 80.4% B 0.202s 6667 72.8% B 0.233s 5865 64.1% B 0.263s 4949 54.1% B 0.294s 4024 44.0% B 0.324s 3109 34.0% B 0.355s 2349 25.7% B 0.385s 1663 18.2% B 0.416s 1096 12.0% B 0.446s 661 7.2% B 0.476s 328 3.6% B 0.506s 116 1.3% B 0.537s 9 0.1% A 1 0.0mm 15 N F R | B -1 -0.0mm 15 N F R