STH Recent Preflight: 61274
Executing preflight for 61274 at Fri Aug 21 17:15:36 SAST 2026.
Log can be found in /atlas/obs/03/61274/preflight.dat.
Setting donefile '/atlas/obs/03/61274/preflight_complete.20260821151536.1405' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260821151536.1405.
Fri Aug 21 17:15:36 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Aug 21 17:15:36 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [9431dbc0-b6b3-4274-ad7f-9dc879e3a360;1800]
Fri Aug 21 17:15:36 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Fri Aug 21 17:15:37 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Fri Aug 21 17:15:37 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Fri Aug 21 17:15:37 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Aug 21 17:15:37 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1787325337
OK
Fri Aug 21 17:15:37 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Aug 21 17:15:37 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
Fri Aug 21 17:15:39 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
Fri Aug 21 17:15:40 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Fri Aug 21 17:15:40 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Fri Aug 21 15:15:40 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 989 1024 377 1.014 -0.016 0.033
+metbox2.sth.atl .PPS. 1 u 131 1024 377 0.294 -0.006 0.048
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 210.182.58.253 2 u 961 1024 377 23.343 0.205 0.722
-ntp.as3741.net 146.64.58.41 2 u 878 1024 377 23.771 -0.461 2.451
-ntp2.as3741.net 129.134.28.123 2 u 460 1024 377 7.247 -1.050 0.072
-ntp2.inx.net.za 183.3.52.101 2 u 597 1024 377 7.354 -0.017 0.201
-ntp5.inx.net.za 210.182.58.253 2 u 823 1024 377 7.915 -0.058 0.091
#102.222.156.151 196.21.187.2 2 u 1008 1024 375 24.635 0.125 0.804
+ntp2.nog.net.za 80.72.67.48 3 u 768 1024 377 7.564 0.013 0.032
-139.84.231.68 ( 196.21.187.2 2 u 302 1024 377 22.831 -0.254 0.879
-ntp8.inx.net.za 210.182.58.253 2 u 337 1024 377 16.909 -0.235 5.415
Fri Aug 21 17:15:43 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (5171GB)
200GB available in /atlas/red...OK (7487GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.3T 5.0T 52% /
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 6.3T 7.2T 47% /
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 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
Fri Aug 21 17:15:43 SAST 2026 [elapsed=7 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
Fri Aug 21 17:15:43 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Fri Aug 21 17:15:43 SAST 2026 [elapsed=7 sec] SERVICES2
Fri Aug 21 17:15:43 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Aug 21 17:15:47 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= 908kB time=00:00:29.05 bitrate= 256.0kbits/s speed=1.4e+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/OPEN (0%) IDLE
Fri Aug 21 17:19:03 SAST 2026 [elapsed=207 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: 218.59 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Fri Aug 21 17:20:34 SAST 2026 [elapsed=298 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Aug 21 17:20:53 SAST 2026 [elapsed=317 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Fri Aug 21 17:20:53 SAST 2026 [elapsed=317 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.0C)
Checking CCD plane: Z0=+1748.00 DZDX=-873.00 DZDY=+3321.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri Aug 21 17:20:53 SAST 2026 [elapsed=317 sec] WEATHER
status weather: clear 20.4C 21% 24/27kph@332 DP22.5C/-24C/d IDLE
...OK
Fri Aug 21 17:20:54 SAST 2026 [elapsed=318 sec] MET
status...OK
met: c=N o=Y Ro9d Co6d Wo10d Ho8d To64d Do29d IDLE
Fri Aug 21 17:20:54 SAST 2026 [elapsed=318 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Aug 21 17:20:54 SAST 2026 [elapsed=318 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 247.51 -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 116 1.3%
A 0.081s 403 4.4%
A 0.111s 746 8.1%
A 0.142s 1208 13.2%
A 0.172s 1803 19.7%
A 0.202s 2489 27.2%
A 0.232s 3288 35.9%
A 0.263s 4196 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 8017 87.6%
A 0.444s 8479 92.6%
A 0.475s 8799 96.1%
A 0.505s 9027 98.6%
A 0.535s 9153 100.0%
B 0.020s 2 0.0%
B 0.050s 103 1.1%
B 0.081s 394 4.3%
B 0.111s 739 8.1%
B 0.141s 1215 13.3%
B 0.172s 1798 19.6%
B 0.202s 2491 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 6798 74.3%
B 0.384s 7457 81.5%
B 0.414s 8027 87.7%
B 0.444s 8467 92.5%
B 0.475s 8807 96.2%
B 0.505s 9032 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9064 99.0%
A 0.081s 8772 95.8%
A 0.111s 8414 91.9%
A 0.141s 7969 87.1%
A 0.172s 7372 80.5%
A 0.202s 6692 73.1%
A 0.232s 5898 64.4%
A 0.263s 4981 54.4%
A 0.293s 4014 43.8%
A 0.323s 3139 34.3%
A 0.353s 2353 25.7%
A 0.384s 1691 18.5%
A 0.414s 1131 12.4%
A 0.444s 685 7.5%
A 0.475s 346 3.8%
A 0.505s 124 1.4%
A 0.535s 11 0.1%
A 0.566s -5 0.0%
B 0.020s 9146 99.9%
B 0.050s 9038 98.7%
B 0.081s 8781 95.9%
B 0.111s 8435 92.1%
B 0.141s 7972 87.1%
B 0.172s 7399 80.8%
B 0.202s 6716 73.4%
B 0.232s 5924 64.7%
B 0.262s 5013 54.8%
B 0.293s 4079 44.6%
B 0.323s 3194 34.9%
B 0.353s 2406 26.3%
B 0.384s 1733 18.9%
B 0.414s 1157 12.6%
B 0.444s 711 7.8%
B 0.474s 366 4.0%
B 0.505s 135 1.5%
B 0.535s 14 0.2%
B 0.565s -6 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 0.535 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 0.565 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.17e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9251 IDLE
Fri Aug 21 17:21:32 SAST 2026 [elapsed=356 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:
123M Aug 21 17:21 /atlas/obs/03a/61274/03a61274e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Aug 21 17:21:55 SAST 2026 [elapsed=379 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (35 seconds old)
OTA humidity level...OK (12%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Aug 21 17:21:55 SAST 2026 [elapsed=379 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61273.64022583|info|galildriver|using focus model: foc=9187+(4.30)*20.0+(-0.40)*60.2=9248.9
61273.64023084|info|galildriver|o 2 IN | cass: 3038529 15.19 mm b=23 move=NO | arm: 409724 476.99 mm b=03 move=OK | foc: 54009659 9251 um b=8f M [focus]
61273.64024098|info|galildriver|o 2 IN | cass: 3038530 15.19 mm b=23 move=NO | arm: 409724 476.99 mm b=03 move=OK | foc: 54009668 9251 um b=0f [cmd]
bestfocus for o...OK
Fri Aug 21 17:21:57 SAST 2026 [elapsed=381 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Aug 21 17:22:23 SAST 2026 [elapsed=407 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
Fri Aug 21 17:22:24 SAST 2026 [elapsed=408 sec] NOTICES: det_dzdx=-873 is outside range +-250 from -558; det_dzdy=3321 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Fri Aug 21 17:22:24 SAST 2026 [elapsed=408 sec] Happy observing!
Fri Aug 21 17:22:24 SAST 2026 [elapsed=408 sec] Preflight took 408 seconds to complete.
Fri Aug 21 17:22:24 SAST 2026 [elapsed=408 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 5 0.1% A 0.051s 125 1.4% A 0.081s 396 4.3% A 0.112s 761 8.3% A 0.142s 1231 13.4% A 0.172s 1803 19.7% A 0.203s 2512 27.4% A 0.233s 3322 36.3% A 0.263s 4233 46.2% A 0.294s 5162 56.4% A 0.324s 6054 66.1% A 0.355s 6820 74.5% A 0.385s 7474 81.6% A 0.415s 8041 87.8% A 0.446s 8480 92.6% A 0.476s 8811 96.3% A 0.507s 9044 98.8% A 0.537s 9142 99.9% A 0.568s 9154 100.0% B 0.020s 1 0.0% B 0.050s 114 1.2% B 0.081s 381 4.2% B 0.111s 727 7.9% B 0.142s 1204 13.2% B 0.172s 1774 19.4% B 0.202s 2465 26.9% B 0.233s 3269 35.7% B 0.263s 4197 45.8% B 0.294s 5132 56.1% B 0.324s 6015 65.7% B 0.355s 6795 74.2% B 0.385s 7461 81.5% B 0.416s 8033 87.8% B 0.446s 8481 92.6% B 0.477s 8813 96.3% B 0.507s 9033 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 0.051s 9049 98.9% A 0.081s 8778 95.9% A 0.112s 8421 92.0% A 0.142s 7958 86.9% A 0.172s 7379 80.6% A 0.202s 6692 73.1% A 0.233s 5895 64.4% A 0.263s 4982 54.4% A 0.294s 4039 44.1% A 0.324s 3166 34.6% A 0.355s 2362 25.8% A 0.385s 1691 18.5% A 0.415s 1131 12.4% A 0.446s 680 7.4% A 0.476s 349 3.8% A 0.507s 120 1.3% A 0.537s 12 0.1% A 0.567s 1 0.0% B 0.020s 9143 99.9% B 0.051s 9011 98.4% B 0.081s 8761 95.7% B 0.112s 8407 91.8% B 0.142s 7934 86.7% B 0.173s 7356 80.4% B 0.203s 6640 72.5% B 0.234s 5835 63.7% B 0.264s 4919 53.7% B 0.295s 3993 43.6% B 0.325s 3110 34.0% B 0.356s 2320 25.3% B 0.386s 1642 17.9% B 0.416s 1101 12.0% B 0.447s 660 7.2% B 0.477s 329 3.6% B 0.508s 115 1.3% B 0.538s 9 0.1% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R