STH Recent Preflight: 61276
Executing preflight for 61276 at Sun Aug 23 17:17:01 SAST 2026.
Log can be found in /atlas/obs/03/61276/preflight.dat.
Setting donefile '/atlas/obs/03/61276/preflight_complete.20260823151701.30267' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260823151701.30267.
Sun Aug 23 17:17:01 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Aug 23 17:17:01 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [6495b5c3-bc0d-4197-be6c-fa245e7bd559;1800]
Sun Aug 23 17:17:01 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun Aug 23 17:17:02 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun Aug 23 17:17:02 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sun Aug 23 17:17:02 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun Aug 23 17:17:02 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1787498217
OK
Sun Aug 23 17:17:02 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun Aug 23 17:17:02 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
Sun Aug 23 17:17:04 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
Sun Aug 23 17:17:04 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sun Aug 23 17:17:04 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sun Aug 23 15:17:04 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 828 1024 377 0.980 0.153 0.261
+metbox2.sth.atl .PPS. 1 u 762 1024 377 0.303 0.135 0.111
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 183.3.52.101 2 u 1050 1024 377 23.353 0.106 0.215
+ntp.as3741.net 146.64.58.41 2 u 805 1024 377 22.952 0.105 0.292
+ntp2.as3741.net 146.64.58.41 2 u 1030 1024 377 7.238 0.190 0.222
+ntp2.inx.net.za 183.3.52.101 2 u 271 1024 377 7.224 0.152 0.106
-ntp5.inx.net.za 210.182.58.253 2 u 558 1024 377 7.931 0.083 0.060
#102.222.156.151 196.21.187.2 2 u 901 1024 377 24.732 0.557 0.803
+ntp2.nog.net.za 80.72.67.48 3 u 638 1024 377 7.536 0.208 0.146
-139.84.231.68 ( 196.21.187.2 2 u 405 1024 377 22.815 -0.020 1.894
+ntp8.inx.net.za 183.3.52.101 2 u 640 1024 377 16.969 0.165 0.942
Sun Aug 23 17:17:06 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (4974GB)
200GB available in /atlas/red...OK (7337GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.5T 4.8T 54% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 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 6.4T 7.0T 48% /
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 14% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 737G 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/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17292
Sun Aug 23 17:17:07 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
Sun Aug 23 17:17:07 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Sun Aug 23 17:17:07 SAST 2026 [elapsed=6 sec] SERVICES2
Sun Aug 23 17:17:07 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Aug 23 17:17:11 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= 912kB time=00:00:29.18 bitrate= 256.0kbits/s speed=1.46e+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
Sun Aug 23 17:20:27 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: 220.91 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Sun Aug 23 17:21:57 SAST 2026 [elapsed=296 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Aug 23 17:22:16 SAST 2026 [elapsed=315 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=41.7 IDLE
Sun Aug 23 17:22:16 SAST 2026 [elapsed=315 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (4 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.1C)
Checking CCD plane: Z0=+1746.00 DZDX=-878.00 DZDY=+3273.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Aug 23 17:22:16 SAST 2026 [elapsed=315 sec] WEATHER
status weather: clear 18.0C 20% 14/20kph@289 DP21.0C/-67C/d IDLE
...OK
Sun Aug 23 17:22:17 SAST 2026 [elapsed=316 sec] MET
status...OK
met: c=N o=Y Ro11d Co8d Wo12d Ho10d To66d Do31d IDLE
Sun Aug 23 17:22:17 SAST 2026 [elapsed=316 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Aug 23 17:22:17 SAST 2026 [elapsed=316 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 249.83 -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 8 0.1%
A 0.051s 115 1.3%
A 0.081s 403 4.4%
A 0.111s 746 8.1%
A 0.142s 1207 13.2%
A 0.172s 1804 19.7%
A 0.202s 2489 27.2%
A 0.233s 3288 35.9%
A 0.263s 4195 45.8%
A 0.293s 5145 56.2%
A 0.324s 6018 65.7%
A 0.354s 6802 74.3%
A 0.384s 7459 81.5%
A 0.414s 8016 87.6%
A 0.445s 8478 92.6%
A 0.475s 8801 96.1%
A 0.505s 9027 98.6%
A 0.536s 9153 100.0%
B 0.020s 2 0.0%
B 0.051s 103 1.1%
B 0.081s 394 4.3%
B 0.111s 739 8.1%
B 0.141s 1216 13.3%
B 0.172s 1796 19.6%
B 0.202s 2492 27.2%
B 0.232s 3285 35.9%
B 0.263s 4198 45.9%
B 0.293s 5132 56.1%
B 0.323s 6020 65.8%
B 0.354s 6799 74.3%
B 0.384s 7455 81.4%
B 0.414s 8026 87.7%
B 0.444s 8466 92.5%
B 0.475s 8806 96.2%
B 0.505s 9032 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9063 99.0%
A 0.081s 8771 95.8%
A 0.111s 8414 91.9%
A 0.141s 7968 87.0%
A 0.172s 7372 80.5%
A 0.202s 6692 73.1%
A 0.232s 5898 64.4%
A 0.262s 4981 54.4%
A 0.293s 4043 44.2%
A 0.323s 3165 34.6%
A 0.353s 2376 26.0%
A 0.384s 1710 18.7%
A 0.414s 1146 12.5%
A 0.444s 698 7.6%
A 0.474s 357 3.9%
A 0.504s 128 1.4%
A 0.535s 14 0.2%
A 0.565s -4 0.0%
B 0.020s 9144 99.9%
B 0.050s 9025 98.6%
B 0.081s 8763 95.7%
B 0.111s 8410 91.9%
B 0.141s 7940 86.7%
B 0.172s 7360 80.4%
B 0.202s 6670 72.9%
B 0.232s 5869 64.1%
B 0.263s 4953 54.1%
B 0.293s 4022 43.9%
B 0.323s 3137 34.3%
B 0.353s 2359 25.8%
B 0.384s 1692 18.5%
B 0.414s 1125 12.3%
B 0.444s 684 7.5%
B 0.475s 346 3.8%
B 0.505s 124 1.4%
B 0.535s 10 0.1%
B 0.565s -5 0.0%
A 0 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 0.536 seconds.
Shutter B opened to 99.9 percent in 0.535 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= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.16e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9248 IDLE
Sun Aug 23 17:22:55 SAST 2026 [elapsed=354 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=41.7 IDLE
taking preflight exposures:
acam...OK
acam image:
124M Aug 23 17:23 /atlas/obs/03a/61276/03a61276e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Aug 23 17:23:18 SAST 2026 [elapsed=377 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (28 seconds old)
OTA humidity level...OK (12%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Aug 23 17:23:18 SAST 2026 [elapsed=377 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61275.64118914|info|galildriver|using focus model: foc=9187+(4.30)*19.4+(-0.40)*60.2=9246.3
61275.64119416|info|galildriver|o 2 IN | cass: 3038718 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54009189 9249 um b=8f M [focus]
61275.64120430|info|galildriver|o 2 IN | cass: 3038718 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54009167 9249 um b=0f [cmd]
bestfocus for o...OK
Sun Aug 23 17:23:21 SAST 2026 [elapsed=380 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Aug 23 17:23:46 SAST 2026 [elapsed=405 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
Sun Aug 23 17:23:47 SAST 2026 [elapsed=406 sec] NOTICES: det_dzdx=-878 is outside range +-250 from -558; det_dzdy=3273 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sun Aug 23 17:23:47 SAST 2026 [elapsed=406 sec] Happy observing!
Sun Aug 23 17:23:47 SAST 2026 [elapsed=406 sec] Preflight took 406 seconds to complete.
Sun Aug 23 17:23:47 SAST 2026 [elapsed=406 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 121 1.3% A 0.082s 394 4.3% A 0.112s 748 8.2% A 0.143s 1232 13.5% A 0.173s 1823 19.9% A 0.204s 2514 27.5% A 0.234s 3351 36.6% A 0.265s 4265 46.6% A 0.295s 5192 56.7% A 0.326s 6079 66.4% A 0.356s 6842 74.7% A 0.387s 7512 82.1% A 0.417s 8070 88.2% A 0.448s 8508 92.9% A 0.479s 8837 96.5% A 0.509s 9054 98.9% A 0.540s 9146 99.9% B 0.020s 2 0.0% B 0.051s 118 1.3% B 0.081s 388 4.2% B 0.112s 753 8.2% B 0.142s 1237 13.5% B 0.172s 1814 19.8% B 0.203s 2517 27.5% B 0.233s 3322 36.3% B 0.264s 4229 46.2% B 0.294s 5163 56.4% B 0.324s 6043 66.0% B 0.355s 6819 74.5% B 0.385s 7478 81.7% B 0.415s 8033 87.8% B 0.446s 8481 92.6% B 0.476s 8821 96.4% B 0.507s 9039 98.7% B 0.537s 9143 99.9% B 0.568s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9051 98.9% A 0.081s 8778 95.9% A 0.111s 8421 92.0% A 0.142s 7958 86.9% A 0.172s 7381 80.6% A 0.203s 6667 72.8% A 0.233s 5867 64.1% A 0.264s 4951 54.1% A 0.294s 4008 43.8% A 0.324s 3139 34.3% A 0.355s 2363 25.8% A 0.385s 1691 18.5% A 0.415s 1130 12.3% A 0.446s 680 7.4% A 0.476s 339 3.7% A 0.507s 115 1.3% A 0.537s 10 0.1% A 0.567s 1 0.0% B 0.020s 9143 99.9% B 0.050s 9012 98.4% B 0.081s 8763 95.7% B 0.111s 8408 91.9% B 0.142s 7934 86.7% B 0.172s 7359 80.4% B 0.203s 6641 72.5% B 0.233s 5837 63.8% B 0.264s 4920 53.7% B 0.295s 3964 43.3% B 0.325s 3084 33.7% B 0.356s 2325 25.4% B 0.386s 1621 17.7% B 0.417s 1084 11.8% B 0.448s 648 7.1% B 0.478s 313 3.4% B 0.509s 106 1.2% B 0.540s 6 0.1% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R