STH Recent Preflight: 61272
Executing preflight for 61272 at Wed Aug 19 17:47:32 SAST 2026.
Log can be found in /atlas/obs/03/61272/preflight.dat.
Setting donefile '/atlas/obs/03/61272/preflight_complete.20260819154732.5692' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260819154732.5692.
Wed Aug 19 17:47:33 SAST 2026 [elapsed=1 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Aug 19 17:47:33 SAST 2026 [elapsed=1 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [c4cff32e-f39d-4776-8fae-22b1e21934e8;1800]
Wed Aug 19 17:47:33 SAST 2026 [elapsed=1 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Aug 19 17:47:33 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Aug 19 17:47:33 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Aug 19 17:47:33 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Aug 19 17:47:33 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1787154450
OK
Wed Aug 19 17:47:33 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Aug 19 17:47:33 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
Wed Aug 19 17:47:35 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
Wed Aug 19 17:47:36 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Wed Aug 19 17:47:36 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Wed Aug 19 15:47:36 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 996 1024 377 1.046 0.412 0.268
+metbox2.sth.atl .PPS. 1 u 250 1024 377 0.331 0.360 0.201
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 210.182.58.253 2 u 972 1024 377 24.139 0.835 0.440
+ntp.as3741.net 146.64.58.41 2 u 952 1024 377 22.913 0.324 0.765
-ntp2.as3741.net 129.134.28.123 2 u 616 1024 377 7.227 -0.389 0.488
+ntp2.inx.net.za 210.182.58.253 2 u 497 1024 377 7.343 0.491 0.415
+ntp5.inx.net.za 102.176.229.251 2 u 642 1024 377 7.762 0.455 0.278
#102.222.156.151 196.21.187.2 2 u 183 1024 377 24.608 0.331 0.457
+ntp2.nog.net.za 80.72.67.48 3 u 853 1024 377 7.475 0.437 0.186
+139.84.231.68 ( 196.21.187.2 2 u 484 1024 377 22.857 0.537 1.413
+ntp8.inx.net.za 210.182.58.253 2 u 83 1024 377 16.865 0.453 0.816
Wed Aug 19 17:47:36 SAST 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (5321GB)
200GB available in /atlas/red...OK (7753GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.2T 5.1T 51% /
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 6.0T 7.4T 45% /
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/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
Wed Aug 19 17:47:36 SAST 2026 [elapsed=4 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
Wed Aug 19 17:47:37 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Wed Aug 19 17:47:37 SAST 2026 [elapsed=5 sec] SERVICES2
Wed Aug 19 17:47:37 SAST 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.1/3.0C ? chiller=ON dryer=? IDLE
Wed Aug 19 17:47:41 SAST 2026 [elapsed=9 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= 924kB time=00:00:29.56 bitrate= 256.0kbits/s speed=1.44e+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
Wed Aug 19 17:50:56 SAST 2026 [elapsed=204 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: 224.44 -29.49, az/alt=324.82 +86.49 idle(e) IDLE
Wed Aug 19 17:51:45 SAST 2026 [elapsed=253 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Aug 19 17:52:23 SAST 2026 [elapsed=291 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.8 IDLE
Wed Aug 19 17:52:23 SAST 2026 [elapsed=291 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (1 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.2C)
Checking CCD plane: Z0=+1745.00 DZDX=-887.00 DZDY=+3174.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Aug 19 17:52:23 SAST 2026 [elapsed=291 sec] WEATHER
status weather: clear 15.4C 37% 25/34kph@294 DP13.6C/-52C/d IDLE
...OK
Wed Aug 19 17:52:24 SAST 2026 [elapsed=292 sec] MET
status...OK
met: c=N o=Y Ro7d Co4d Wo8d Ho6d To62d Do27d IDLE
Wed Aug 19 17:52:24 SAST 2026 [elapsed=292 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Aug 19 17:52:24 SAST 2026 [elapsed=292 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 253.35 -14.64, az/alt=59.90 +60.06 tracking(w) IDLE 0s
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 115 1.3%
A 0.081s 402 4.4%
A 0.111s 747 8.2%
A 0.141s 1207 13.2%
A 0.172s 1803 19.7%
A 0.202s 2491 27.2%
A 0.233s 3287 35.9%
A 0.263s 4194 45.8%
A 0.293s 5143 56.2%
A 0.323s 6020 65.8%
A 0.354s 6804 74.3%
A 0.384s 7458 81.5%
A 0.414s 8016 87.6%
A 0.445s 8478 92.6%
A 0.475s 8800 96.1%
A 0.505s 9028 98.6%
A 0.535s 9153 100.0%
B 0.020s 2 0.0%
B 0.050s 104 1.1%
B 0.081s 393 4.3%
B 0.111s 739 8.1%
B 0.141s 1216 13.3%
B 0.172s 1797 19.6%
B 0.202s 2491 27.2%
B 0.232s 3285 35.9%
B 0.263s 4197 45.8%
B 0.293s 5130 56.0%
B 0.323s 6022 65.8%
B 0.354s 6797 74.3%
B 0.384s 7455 81.4%
B 0.414s 8027 87.7%
B 0.444s 8466 92.5%
B 0.475s 8807 96.2%
B 0.505s 9034 98.7%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9056 98.9%
A 0.081s 8760 95.7%
A 0.112s 8403 91.8%
A 0.142s 7952 86.9%
A 0.172s 7330 80.1%
A 0.203s 6644 72.6%
A 0.233s 5844 63.8%
A 0.264s 4922 53.8%
A 0.294s 3985 43.5%
A 0.324s 3111 34.0%
A 0.354s 2328 25.4%
A 0.385s 1669 18.2%
A 0.415s 1116 12.2%
A 0.445s 672 7.3%
A 0.476s 335 3.7%
A 0.506s 119 1.3%
A 0.536s 9 0.1%
B 0.020s 9145 99.9%
B 0.050s 9033 98.7%
B 0.081s 8772 95.8%
B 0.111s 8424 92.0%
B 0.141s 7957 86.9%
B 0.172s 7380 80.6%
B 0.202s 6693 73.1%
B 0.233s 5896 64.4%
B 0.263s 4984 54.4%
B 0.293s 4051 44.3%
B 0.324s 3165 34.6%
B 0.354s 2384 26.0%
B 0.384s 1714 18.7%
B 0.415s 1124 12.3%
B 0.445s 685 7.5%
B 0.476s 348 3.8%
B 0.506s 123 1.3%
B 0.536s 10 0.1%
B 0.567s -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 0.1 percent in 0.536 seconds.
Shutter B closed to 0.0 percent in 0.567 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed= 900x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9243 IDLE
Wed Aug 19 17:53:02 SAST 2026 [elapsed=330 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.8 IDLE
taking preflight exposures:
acam...OK
acam image:
123M Aug 19 17:53 /atlas/obs/03a/61272/03a61272e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Aug 19 17:53:24 SAST 2026 [elapsed=352 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (34 seconds old)
OTA humidity level...OK (15%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Aug 19 17:53:24 SAST 2026 [elapsed=352 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61271.66209299|info|galildriver|using focus model: foc=9187+(4.30)*18.1+(-0.40)*60.2=9240.7
61271.66209801|info|galildriver|o 2 IN | cass: 3039914 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54008157 9244 um b=8f M [focus]
61271.66210818|info|galildriver|o 2 IN | cass: 3039916 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54008153 9244 um b=0f [cmd]
bestfocus for o...OK
Wed Aug 19 17:53:26 SAST 2026 [elapsed=354 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Aug 19 17:53:52 SAST 2026 [elapsed=380 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
Wed Aug 19 17:53:54 SAST 2026 [elapsed=382 sec] NOTICES: det_dzdx=-887 is outside range +-250 from -558; det_dzdy=3174 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Wed Aug 19 17:53:54 SAST 2026 [elapsed=382 sec] Happy observing!
Wed Aug 19 17:53:54 SAST 2026 [elapsed=382 sec] Preflight took 381 seconds to complete.
Wed Aug 19 17:53:54 SAST 2026 [elapsed=382 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 115 1.3% A 0.082s 384 4.2% A 0.112s 736 8.0% A 0.142s 1197 13.1% A 0.173s 1803 19.7% A 0.203s 2489 27.2% A 0.234s 3295 36.0% A 0.264s 4204 45.9% A 0.295s 5132 56.1% A 0.325s 6053 66.1% A 0.356s 6820 74.5% A 0.387s 7474 81.6% A 0.417s 8038 87.8% A 0.448s 8494 92.8% A 0.478s 8821 96.4% A 0.509s 9043 98.8% A 0.539s 9145 99.9% B 0.020s 1 0.0% B 0.051s 104 1.1% B 0.081s 380 4.2% B 0.112s 727 7.9% B 0.142s 1201 13.1% B 0.172s 1772 19.4% B 0.203s 2465 26.9% B 0.233s 3270 35.7% B 0.263s 4168 45.5% B 0.294s 5133 56.1% B 0.324s 6015 65.7% B 0.355s 6794 74.2% B 0.385s 7460 81.5% B 0.416s 8019 87.6% B 0.446s 8468 92.5% B 0.477s 8814 96.3% B 0.507s 9034 98.7% B 0.538s 9142 99.9% B 0.568s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.051s 9043 98.8% A 0.081s 8768 95.8% A 0.111s 8407 91.8% A 0.141s 7941 86.7% A 0.172s 7360 80.4% A 0.202s 6668 72.8% A 0.232s 5867 64.1% A 0.262s 4950 54.1% A 0.292s 4010 43.8% A 0.323s 3139 34.3% A 0.353s 2363 25.8% A 0.383s 1690 18.5% A 0.413s 1130 12.3% A 0.444s 681 7.4% A 0.474s 358 3.9% A 0.504s 120 1.3% A 0.534s 13 0.1% A 0.565s 1 0.0% B 0.020s 9146 99.9% B 0.050s 9027 98.6% B 0.081s 8781 95.9% B 0.111s 8436 92.2% B 0.141s 7970 87.1% B 0.171s 7400 80.8% B 0.202s 6713 73.3% B 0.232s 5921 64.7% B 0.262s 5012 54.8% B 0.292s 4086 44.6% B 0.323s 3192 34.9% B 0.353s 2414 26.4% B 0.383s 1724 18.8% B 0.413s 1163 12.7% B 0.443s 712 7.8% B 0.474s 375 4.1% B 0.504s 144 1.6% B 0.534s 18 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R