STH Recent Preflight: 61288
Executing preflight for 61288 at Fri Sep 4 17:24:22 SAST 2026.
Log can be found in /atlas/obs/03/61288/preflight.dat.
Setting donefile '/atlas/obs/03/61288/preflight_complete.20260904152422.4726' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260904152422.4726.
Fri Sep 4 17:24:22 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Sep 4 17:24:22 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [1e796770-671f-404b-af29-e7444104351f;1800]
Fri Sep 4 17:24:22 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Fri Sep 4 17:24:23 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Fri Sep 4 17:24:23 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Fri Sep 4 17:24:23 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Sep 4 17:24:23 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1788535456
OK
Fri Sep 4 17:24:23 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Sep 4 17:24:23 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 Sep 4 17:24:25 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 Sep 4 17:24:25 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Sep 4 17:24:25 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Fri Sep 4 15:24:25 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 518 1024 377 1.034 -0.132 0.041
+metbox2.sth.atl .PPS. 1 u 111 1024 377 0.287 -0.124 2.148
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 196.21.187.2 2 u 463 1024 377 35.699 -1.007 1.141
-ntp.as3741.net 146.64.8.7 2 u 599 1024 377 29.985 -3.804 0.061
-ntp2.as3741.net 155.232.19.6 2 u 519 1024 377 7.328 0.612 0.055
+ntp2.inx.net.za 196.21.187.2 2 u 326 1024 377 7.277 -0.195 0.054
+ntp5.inx.net.za 102.176.229.251 2 u 863 1024 377 7.526 -0.113 0.095
#102.222.156.151 129.134.26.123 2 u 980 1024 157 29.400 -3.491 0.207
+ntp2.nog.net.za 80.72.67.48 3 u 29 1024 377 7.557 -0.061 0.073
-139.84.231.68 196.21.187.2 2 u 697 1024 377 35.198 0.139 0.659
-ntp8.inx.net.za 183.3.52.101 2 u 747 1024 377 16.870 1.117 0.318
Fri Sep 4 17:24:27 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (4596GB)
200GB available in /atlas/red...OK (7768GB)
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 6.0T 7.5T 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 1.8T 12T 13% /
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
Fri Sep 4 17:24:27 SAST 2026 [elapsed=5 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 Sep 4 17:24:28 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Fri Sep 4 17:24:28 SAST 2026 [elapsed=6 sec] SERVICES2
Fri Sep 4 17:24:28 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Sep 4 17:24:32 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= 916kB time=00:00:29.31 bitrate= 256.0kbits/s speed=1.49e+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
Fri Sep 4 17:27:47 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: 234.41 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Fri Sep 4 17:28:38 SAST 2026 [elapsed=256 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Sep 4 17:29:02 SAST 2026 [elapsed=280 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Fri Sep 4 17:29:02 SAST 2026 [elapsed=280 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 (-55.2C)
Checking CCD plane: Z0=+1671.00 DZDX=-878.00 DZDY=+1515.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri Sep 4 17:29:02 SAST 2026 [elapsed=280 sec] WEATHER
status weather: C W 6.5C 65% 35/60kph@162 DP5.4C/-22C/d IDLE
...OK
Fri Sep 4 17:29:03 SAST 2026 [elapsed=281 sec] MET
status...OK
met: c=N o=N Ro12h Co2h Wx0 Ho6h To78d Do4d wait W IDLE
Fri Sep 4 17:29:03 SAST 2026 [elapsed=281 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Sep 4 17:29:05 SAST 2026 [elapsed=283 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 263.33 -14.63, 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 106 1.2%
A 0.081s 389 4.2%
A 0.111s 732 8.0%
A 0.141s 1190 13.0%
A 0.172s 1781 19.5%
A 0.202s 2466 26.9%
A 0.232s 3259 35.6%
A 0.263s 4164 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 0 0.0%
B 0.050s 96 1.0%
B 0.081s 378 4.1%
B 0.111s 724 7.9%
B 0.141s 1197 13.1%
B 0.172s 1775 19.4%
B 0.202s 2465 26.9%
B 0.232s 3257 35.6%
B 0.262s 4166 45.5%
B 0.293s 5103 55.7%
B 0.323s 5991 65.4%
B 0.353s 6775 74.0%
B 0.384s 7436 81.2%
B 0.414s 8011 87.5%
B 0.444s 8456 92.4%
B 0.474s 8800 96.1%
B 0.505s 9031 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9059 99.0%
A 0.081s 8762 95.7%
A 0.111s 8404 91.8%
A 0.141s 7951 86.9%
A 0.172s 7353 80.3%
A 0.202s 6669 72.9%
A 0.232s 5869 64.1%
A 0.263s 4954 54.1%
A 0.293s 4015 43.9%
A 0.323s 3137 34.3%
A 0.353s 2354 25.7%
A 0.384s 1688 18.4%
A 0.414s 1129 12.3%
A 0.444s 685 7.5%
A 0.475s 345 3.8%
A 0.505s 122 1.3%
A 0.535s 11 0.1%
A 0.565s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9041 98.8%
B 0.081s 8776 95.9%
B 0.111s 8425 92.0%
B 0.141s 7960 87.0%
B 0.172s 7379 80.6%
B 0.202s 6694 73.1%
B 0.232s 5923 64.7%
B 0.262s 5014 54.8%
B 0.293s 4081 44.6%
B 0.323s 3191 34.9%
B 0.353s 2407 26.3%
B 0.383s 1732 18.9%
B 0.414s 1157 12.6%
B 0.444s 708 7.7%
B 0.474s 355 3.9%
B 0.505s 126 1.4%
B 0.535s 9 0.1%
A 1 0.0mm 15 N F R | B -7 -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 0.565 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.23e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9219 IDLE
Fri Sep 4 17:29:42 SAST 2026 [elapsed=320 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 Sep 4 17:29 /atlas/obs/03a/61288/03a61288e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Sep 4 17:30:04 SAST 2026 [elapsed=342 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (74 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Sep 4 17:30:04 SAST 2026 [elapsed=342 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61287.64588837|info|galildriver|using focus model: foc=9187+(4.30)*11.5+(-0.40)*60.2=9212.4
61287.64589339|info|galildriver|o 2 IN | cass: 3042739 15.21 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54003194 9219 um b=8f M [focus]
61287.64590373|info|galildriver|o 2 IN | cass: 3042737 15.21 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54003186 9219 um b=0f [cmd]
bestfocus for o...OK
Fri Sep 4 17:30:07 SAST 2026 [elapsed=345 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Sep 4 17:30:33 SAST 2026 [elapsed=371 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 Sep 4 17:30:35 SAST 2026 [elapsed=373 sec] NOTICES: det_dzdx=-878 is outside range +-250 from -558; det_dzdy=1515 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 Sep 4 17:30:35 SAST 2026 [elapsed=373 sec] Happy observing!
Fri Sep 4 17:30:35 SAST 2026 [elapsed=373 sec] Preflight took 373 seconds to complete.
Fri Sep 4 17:30:35 SAST 2026 [elapsed=373 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 0.081s 385 4.2% A 0.112s 735 8.0% A 0.142s 1215 13.3% A 0.173s 1803 19.7% A 0.203s 2489 27.2% A 0.233s 3295 36.0% A 0.264s 4204 45.9% A 0.295s 5133 56.1% A 0.325s 6053 66.1% A 0.356s 6819 74.5% A 0.386s 7473 81.6% A 0.417s 8038 87.8% A 0.447s 8482 92.7% A 0.477s 8821 96.4% A 0.508s 9043 98.8% A 0.538s 9143 99.9% A 0.569s 9154 100.0% B 0.020s 2 0.0% B 0.051s 111 1.2% B 0.081s 380 4.2% B 0.112s 742 8.1% B 0.142s 1219 13.3% B 0.173s 1793 19.6% B 0.203s 2492 27.2% B 0.233s 3297 36.0% B 0.264s 4229 46.2% B 0.294s 5161 56.4% B 0.325s 6042 66.0% B 0.355s 6819 74.5% B 0.386s 7481 81.7% B 0.416s 8033 87.8% B 0.447s 8493 92.8% B 0.477s 8821 96.4% B 0.507s 9039 98.7% B 0.538s 9144 99.9% B 0.568s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.051s 9049 98.9% A 0.081s 8778 95.9% A 0.112s 8422 92.0% A 0.142s 7941 86.7% A 0.173s 7360 80.4% A 0.203s 6669 72.9% A 0.234s 5866 64.1% A 0.264s 4920 53.7% A 0.294s 3979 43.5% A 0.325s 3113 34.0% A 0.356s 2341 25.6% A 0.386s 1672 18.3% A 0.417s 1097 12.0% A 0.447s 656 7.2% A 0.478s 331 3.6% A 0.508s 104 1.1% A 0.539s 7 0.1% B 0.020s 9144 99.9% B 0.051s 9018 98.5% B 0.081s 8771 95.8% B 0.111s 8421 92.0% B 0.141s 7953 86.9% B 0.172s 7380 80.6% B 0.202s 6690 73.1% B 0.232s 5892 64.4% B 0.263s 4979 54.4% B 0.293s 4055 44.3% B 0.323s 3164 34.6% B 0.354s 2395 26.2% B 0.384s 1702 18.6% B 0.415s 1130 12.3% B 0.445s 687 7.5% B 0.475s 347 3.8% B 0.506s 127 1.4% B 0.536s 13 0.1% B 0.567s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R