STH Recent Preflight: 61158
Executing preflight for 61158 at Mon Apr 27 17:04:39 SAST 2026.
Log can be found in /atlas/obs/03/61158/preflight.dat.
Setting donefile '/atlas/obs/03/61158/preflight_complete.20260427150439.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260427150439.11042.
Mon Apr 27 17:04:39 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Apr 27 17:04:39 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [438966ce-6059-44c3-82d3-bb6700f85621;1800]
Mon Apr 27 17:04:39 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Apr 27 17:04:40 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Apr 27 17:04:40 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Mon Apr 27 17:04:40 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Apr 27 17:04:40 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777302270
OK
Mon Apr 27 17:04:40 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Apr 27 17:04:40 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
Mon Apr 27 17:04:41 SAST 2026 [elapsed=2 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
Mon Apr 27 17:04:42 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Apr 27 17:04:42 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Mon Apr 27 15:04:42 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 983 1024 377 0.983 0.233 0.088
*metbox2.sth.atl .PPS. 1 u 565 1024 377 0.304 0.185 0.048
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 702 1024 377 24.179 0.886 0.259
+ntp.as3741.net 146.64.58.41 2 u 837 1024 377 22.842 0.143 0.362
-ntp2.as3741.net 155.232.19.7 2 u 662 1024 377 7.226 0.491 0.100
-ntp2.inx.net.za 210.182.58.253 2 u 246 1024 377 7.287 0.734 0.079
-102.222.100.153 155.232.19.6 2 u 197 1024 377 7.864 0.683 0.295
-ntp5.inx.net.za 102.176.229.251 2 u 636 1024 377 7.965 0.663 0.057
-flipping.cloudh 80.72.67.48 3 u 546 1024 377 8.074 0.374 0.067
102.216.37.99 ( 210.182.58.253 2 u 84d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 298 1024 377 23.452 0.142 0.600
Mon Apr 27 17:04:44 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6102GB)
200GB available in /atlas/red...OK (9117GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.4T 5.9T 44% /
admin:/dev/loop2 106M 106M 0 100% /snap/core/17284
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 21G 91G 19% /
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
tcs:/dev/mapper/ubuntu--vg-ubuntu--lv 98G 35G 59G 37% /
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 4.7T 8.7T 35% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.7T 12T 13% /
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 736G 13T 6% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Mon Apr 27 17:04:44 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
Mon Apr 27 17:04:44 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Mon Apr 27 17:04:45 SAST 2026 [elapsed=6 sec] SERVICES2
Mon Apr 27 17:04:45 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Apr 27 17:04:49 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= 914kB time=00:00:29.24 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/CLOSED (0%) IDLE
Mon Apr 27 17:08:05 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: 101.36 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Mon Apr 27 17:09:04 SAST 2026 [elapsed=265 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Apr 27 17:09:25 SAST 2026 [elapsed=286 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
Mon Apr 27 17:09:26 SAST 2026 [elapsed=287 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (5 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.4C)
Checking CCD plane: Z0=+1663.00 DZDX=-881.00 DZDY=+1286.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Apr 27 17:09:26 SAST 2026 [elapsed=287 sec] WEATHER
status weather: clear 3.7C 66% 20/26kph@288 DP4.5C/-37C/d IDLE
...OK
Mon Apr 27 17:09:26 SAST 2026 [elapsed=287 sec] MET
status...OK
met: c=N o=Y Ro13h Co34 Wo11h Ho5h To30d Do1d IDLE
Mon Apr 27 17:09:26 SAST 2026 [elapsed=287 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Apr 27 17:09:34 SAST 2026 [elapsed=295 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 130.29 -14.63, az/alt=59.89 +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 10 0.1%
A 0.051s 107 1.2%
A 0.081s 398 4.3%
A 0.111s 745 8.1%
A 0.141s 1189 13.0%
A 0.172s 1779 19.4%
A 0.202s 2467 26.9%
A 0.233s 3260 35.6%
A 0.277s 4348 47.5%
A 0.309s 5548 60.6%
A 0.352s 6660 72.8%
A 0.388s 7456 81.5%
A 0.421s 8119 88.7%
A 0.457s 8628 94.3%
A 0.488s 8907 97.3%
A 0.519s 9100 99.4%
A 0.556s 9168 100.0%
B 0.021s 4 0.0%
B 0.060s 168 1.8%
B 0.090s 514 5.6%
B 0.121s 906 9.9%
B 0.151s 1426 15.6%
B 0.181s 2050 22.4%
B 0.211s 2786 30.4%
B 0.242s 3623 39.6%
B 0.272s 4568 49.9%
B 0.302s 5479 59.9%
B 0.332s 6338 69.2%
B 0.363s 7061 77.1%
B 0.393s 7689 84.0%
B 0.423s 8213 89.7%
B 0.453s 8612 94.1%
B 0.484s 8911 97.3%
B 0.514s 9093 99.3%
B 0.544s 9163 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9065 99.0%
A 0.081s 8776 95.9%
A 0.111s 8416 91.9%
A 0.141s 7968 87.0%
A 0.171s 7375 80.6%
A 0.202s 6694 73.1%
A 0.232s 5895 64.4%
A 0.262s 4983 54.4%
A 0.292s 4047 44.2%
A 0.323s 3165 34.6%
A 0.353s 2376 26.0%
A 0.383s 1708 18.7%
A 0.413s 1162 12.7%
A 0.444s 710 7.8%
A 0.474s 355 3.9%
A 0.504s 127 1.4%
A 0.534s 12 0.1%
A 0.565s -9 0.0%
B 0.020s 9146 99.9%
B 0.051s 9036 98.7%
B 0.081s 8776 95.9%
B 0.111s 8426 92.0%
B 0.141s 7959 86.9%
B 0.172s 7381 80.6%
B 0.202s 6695 73.1%
B 0.232s 5896 64.4%
B 0.262s 4986 54.5%
B 0.293s 4049 44.2%
B 0.323s 3164 34.6%
B 0.353s 2384 26.0%
B 0.384s 1712 18.7%
B 0.414s 1140 12.5%
B 0.444s 695 7.6%
B 0.475s 354 3.9%
B 0.505s 126 1.4%
B 0.535s 11 0.1%
B 0.565s -7 0.0%
A 0 0.0mm 15 N F R | B -6 -0.2mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.556 seconds.
Shutter B opened to 100.0 percent in 0.544 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= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.14e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9203 IDLE
Mon Apr 27 17:10:31 SAST 2026 [elapsed=352 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
taking preflight exposures:
acam...OK
acam image:
125M Apr 27 17:10 /atlas/obs/03a/61158/03a61158e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Apr 27 17:10:53 SAST 2026 [elapsed=374 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (66 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Apr 27 17:10:53 SAST 2026 [elapsed=374 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61157.63256977|info|galildriver|using focus model: foc=9187+(4.30)*10.5+(-0.40)*60.2=9208.1
61157.63257502|info|galildriver|o 2 IN | cass: 3051029 15.26 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54000184 9204 um b=8f M [focus]
61157.63258562|info|galildriver|o 2 IN | cass: 3051029 15.26 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54000251 9204 um b=2f [cmd]
bestfocus for o...OK
Mon Apr 27 17:10:56 SAST 2026 [elapsed=377 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Apr 27 17:11:26 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
Mon Apr 27 17:11:27 SAST 2026 [elapsed=408 sec] NOTICES: det_dzdx=-881 is outside range +-250 from -558; det_dzdy=1286 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Mon Apr 27 17:11:27 SAST 2026 [elapsed=408 sec] Happy observing!
Mon Apr 27 17:11:27 SAST 2026 [elapsed=408 sec] Preflight took 408 seconds to complete.
Mon Apr 27 17:11:27 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
|
Azimuth check
Preflight image Shutter acutation data:
A 0.020s 3 0.0% A 0.051s 115 1.3% A 0.081s 385 4.2% A 0.111s 737 8.1% A 0.141s 1198 13.1% A 0.171s 1781 19.5% A 0.202s 2465 26.9% A 0.232s 3267 35.7% A 0.262s 4174 45.6% A 0.292s 5103 55.7% A 0.323s 5996 65.5% A 0.353s 6776 74.0% A 0.383s 7432 81.2% A 0.413s 8006 87.5% A 0.444s 8458 92.4% A 0.474s 8792 96.0% A 0.504s 9028 98.6% A 0.534s 9138 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 109 1.2% B 0.081s 377 4.1% B 0.111s 728 8.0% B 0.141s 1203 13.1% B 0.172s 1772 19.4% B 0.202s 2465 26.9% B 0.232s 3266 35.7% B 0.262s 4166 45.5% B 0.292s 5103 55.7% B 0.323s 5987 65.4% B 0.353s 6772 74.0% B 0.383s 7439 81.3% B 0.413s 8001 87.4% B 0.444s 8456 92.4% B 0.474s 8797 96.1% B 0.504s 9023 98.6% B 0.534s 9140 99.8% B 0.565s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9050 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.171s 7380 80.6% A 0.202s 6691 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.292s 4069 44.5% A 0.322s 3192 34.9% A 0.353s 2411 26.3% A 0.383s 1730 18.9% A 0.413s 1163 12.7% A 0.443s 707 7.7% A 0.474s 367 4.0% A 0.504s 131 1.4% A 0.534s 16 0.2% A 0.564s 1 0.0% B 0.020s 9145 99.9% B 0.050s 9023 98.6% B 0.081s 8780 95.9% B 0.111s 8433 92.1% B 0.141s 7967 87.0% B 0.171s 7396 80.8% B 0.201s 6712 73.3% B 0.232s 5920 64.7% B 0.262s 5011 54.7% B 0.292s 4080 44.6% B 0.322s 3191 34.9% B 0.353s 2414 26.4% B 0.383s 1726 18.9% B 0.413s 1163 12.7% B 0.443s 712 7.8% B 0.473s 364 4.0% B 0.504s 144 1.6% B 0.534s 15 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R |