STH Recent Preflight: 61287
Executing preflight for 61287 at Thu Sep 3 17:23:44 SAST 2026.
Log can be found in /atlas/obs/03/61287/preflight.dat.
Setting donefile '/atlas/obs/03/61287/preflight_complete.20260903152344.4726' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260903152344.4726.
Thu Sep 3 17:23:44 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Sep 3 17:23:44 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [410f01bf-bbc3-4ff0-ab19-71e29fe89b7f;1800]
Thu Sep 3 17:23:44 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu Sep 3 17:23:45 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Sep 3 17:23:45 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu Sep 3 17:23:45 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Sep 3 17:23:45 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1788449021
OK
Thu Sep 3 17:23:45 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Sep 3 17:23:45 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 Sep 3 17:23:47 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 Sep 3 17:23:47 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Sep 3 17:23:47 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Thu Sep 3 15:23:47 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 588 1024 207 1.032 -0.133 0.256
*metbox2.sth.atl .PPS. 1 u 271 1024 377 0.283 -0.099 0.423
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 447 1024 377 23.283 0.825 4.453
+ntp.as3741.net 146.64.8.7 2 u 608 1024 377 22.855 -0.066 0.372
+ntp2.as3741.net 155.232.19.6 2 u 741 1024 377 7.314 -0.282 0.496
+ntp2.inx.net.za 210.182.58.253 2 u 148 1024 377 7.349 -0.167 0.406
+ntp5.inx.net.za 210.182.58.253 2 u 730 1024 377 7.625 -0.008 0.375
#102.222.156.151 196.21.187.2 2 u 380 1024 377 23.423 -0.576 0.833
+ntp2.nog.net.za 80.72.67.48 3 u 948 1024 377 7.523 -0.083 0.506
-139.84.231.68 196.21.187.2 2 u 804 1024 377 23.682 -1.685 1.312
-ntp8.inx.net.za 210.182.58.253 2 u 726 1024 377 16.966 0.855 0.718
Thu Sep 3 17:23:50 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (4532GB)
200GB available in /atlas/red...OK (7486GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.9T 4.4T 58% /
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 1.9T 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 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/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17292
Thu Sep 3 17:23:50 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
Thu Sep 3 17:23:50 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Thu Sep 3 17:23:50 SAST 2026 [elapsed=6 sec] SERVICES2
Thu Sep 3 17:23:50 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Sep 3 17:23:55 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= 922kB time=00:00:29.50 bitrate= 256.0kbits/s speed=1.48e+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 Sep 3 17:27:15 SAST 2026 [elapsed=211 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: 233.30 -29.49, az/alt=324.82 +86.49 idle(e) IDLE
Thu Sep 3 17:28:06 SAST 2026 [elapsed=262 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Sep 3 17:28:25 SAST 2026 [elapsed=281 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Thu Sep 3 17:28:25 SAST 2026 [elapsed=281 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 (-54.8C)
Checking CCD plane: Z0=+1705.00 DZDX=-886.00 DZDY=+2279.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Sep 3 17:28:25 SAST 2026 [elapsed=281 sec] WEATHER
status weather: C+ H+ 7.0C 93% 15/31kph@216 DP0.2C/-36C/d IDLE
...OK
Thu Sep 3 17:28:26 SAST 2026 [elapsed=282 sec] MET
status...OK
met: c=Y o=N Ro5d Cx2h Wo5d Hx37 To77d Do3d wait CH IDLE
Thu Sep 3 17:28:26 SAST 2026 [elapsed=282 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Sep 3 17:28:28 SAST 2026 [elapsed=284 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 262.21 -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 99 1.1%
A 0.081s 381 4.2%
A 0.111s 733 8.0%
A 0.142s 1189 13.0%
A 0.172s 1783 19.5%
A 0.202s 2466 26.9%
A 0.232s 3258 35.6%
A 0.263s 4165 45.5%
A 0.293s 5116 55.9%
A 0.323s 5989 65.4%
A 0.354s 6781 74.1%
A 0.384s 7439 81.3%
A 0.414s 7999 87.4%
A 0.444s 8466 92.5%
A 0.475s 8793 96.1%
A 0.505s 9022 98.6%
A 0.535s 9153 100.0%
B 0.020s 1 0.0%
B 0.051s 105 1.1%
B 0.081s 390 4.3%
B 0.111s 738 8.1%
B 0.142s 1215 13.3%
B 0.172s 1797 19.6%
B 0.202s 2490 27.2%
B 0.233s 3284 35.9%
B 0.263s 4198 45.9%
B 0.293s 5161 56.4%
B 0.323s 6049 66.1%
B 0.354s 6819 74.5%
B 0.384s 7477 81.7%
B 0.414s 8044 87.9%
B 0.444s 8480 92.6%
B 0.475s 8817 96.3%
B 0.505s 9040 98.8%
B 0.535s 9149 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9057 98.9%
A 0.081s 8762 95.7%
A 0.111s 8404 91.8%
A 0.141s 7952 86.9%
A 0.172s 7352 80.3%
A 0.202s 6669 72.9%
A 0.232s 5869 64.1%
A 0.263s 4952 54.1%
A 0.293s 4014 43.8%
A 0.323s 3137 34.3%
A 0.354s 2355 25.7%
A 0.384s 1688 18.4%
A 0.414s 1130 12.3%
A 0.444s 685 7.5%
A 0.475s 344 3.8%
A 0.505s 123 1.3%
A 0.535s 11 0.1%
A 0.566s -8 0.0%
B 0.020s 9146 99.9%
B 0.050s 9040 98.8%
B 0.081s 8785 96.0%
B 0.111s 8436 92.2%
B 0.141s 7975 87.1%
B 0.171s 7400 80.8%
B 0.202s 6717 73.4%
B 0.232s 5924 64.7%
B 0.262s 4985 54.5%
B 0.293s 4051 44.3%
B 0.323s 3164 34.6%
B 0.353s 2384 26.0%
B 0.384s 1713 18.7%
B 0.414s 1141 12.5%
B 0.444s 696 7.6%
B 0.475s 356 3.9%
B 0.505s 126 1.4%
B 0.535s 11 0.1%
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= 228kB time=00:00:07.29 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=9205 IDLE
Thu Sep 3 17:29:06 SAST 2026 [elapsed=322 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:
122M Sep 3 17:29 /atlas/obs/03a/61287/03a61287e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Sep 3 17:29:29 SAST 2026 [elapsed=345 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (39 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Sep 3 17:29:29 SAST 2026 [elapsed=345 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61286.64548022|info|galildriver|using focus model: foc=9187+(4.30)*13.5+(-0.40)*60.2=9221.0
61286.64548557|info|galildriver|o 2 IN | cass: 3041425 15.21 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54002181 9214 um b=8f M [focus]
61286.64549129|info|galildriver|o 2 IN | cass: 3041423 15.21 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54003395 9220 um b=8f M [focus]
61286.64549690|info|galildriver|o 2 IN | cass: 3041427 15.21 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54003498 9221 um b=0f [cmd]
bestfocus for o...OK
Thu Sep 3 17:29:31 SAST 2026 [elapsed=347 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Sep 3 17:29:57 SAST 2026 [elapsed=373 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 Sep 3 17:29:58 SAST 2026 [elapsed=374 sec] NOTICES: det_dzdx=-886 is outside range +-250 from -558; det_dzdy=2279 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 Sep 3 17:29:58 SAST 2026 [elapsed=374 sec] Happy observing!
Thu Sep 3 17:29:58 SAST 2026 [elapsed=374 sec] Preflight took 374 seconds to complete.
Thu Sep 3 17:29:58 SAST 2026 [elapsed=374 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 109 1.2% A 0.081s 373 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.171s 1761 19.2% A 0.202s 2444 26.7% A 0.232s 3239 35.4% A 0.262s 4143 45.3% A 0.292s 5073 55.4% A 0.322s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7393 80.8% A 0.413s 7971 87.1% A 0.444s 8432 92.1% A 0.474s 8773 95.8% A 0.504s 9022 98.6% A 0.534s 9134 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 120 1.3% B 0.081s 389 4.2% B 0.111s 741 8.1% B 0.141s 1219 13.3% B 0.171s 1794 19.6% B 0.202s 2493 27.2% B 0.232s 3297 36.0% B 0.262s 4166 45.5% B 0.292s 5104 55.8% B 0.322s 5987 65.4% B 0.352s 6773 74.0% B 0.383s 7440 81.3% B 0.413s 8001 87.4% B 0.443s 8455 92.4% B 0.474s 8794 96.1% B 0.504s 9023 98.6% B 0.534s 9138 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9048 98.8% A 0.081s 8778 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.172s 7380 80.6% A 0.202s 6691 73.1% A 0.232s 5894 64.4% A 0.263s 4982 54.4% A 0.293s 4038 44.1% A 0.323s 3166 34.6% A 0.353s 2387 26.1% A 0.384s 1711 18.7% A 0.414s 1147 12.5% A 0.444s 693 7.6% A 0.474s 358 3.9% A 0.504s 125 1.4% A 0.534s 13 0.1% A 0.565s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9020 98.5% B 0.081s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.171s 7379 80.6% B 0.201s 6689 73.1% B 0.232s 5919 64.7% B 0.262s 5011 54.7% B 0.292s 4083 44.6% B 0.322s 3192 34.9% B 0.353s 2415 26.4% B 0.383s 1723 18.8% B 0.413s 1164 12.7% B 0.443s 713 7.8% B 0.474s 366 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.565s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R