STH Recent Preflight: 61245
Executing preflight for 61245 at Thu Jul 23 16:56:56 SAST 2026.
Log can be found in /atlas/obs/03/61245/preflight.dat.
Setting donefile '/atlas/obs/03/61245/preflight_complete.20260723145656.20850' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260723145656.20850.
Thu Jul 23 16:56:56 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Jul 23 16:56:56 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [51083731-3e0c-4d5e-9fca-205c28566751;1800]
Thu Jul 23 16:56:56 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 ON redLED
Thu Jul 23 16:56:58 SAST 2026 [elapsed=2 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Jul 23 16:56:58 SAST 2026 [elapsed=2 sec] auxcam is disabled.
Thu Jul 23 16:56:58 SAST 2026 [elapsed=2 sec] Skipping auxcam.
error: unknown module: vent
Thu Jul 23 16:56:58 SAST 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1784818610
OK
Thu Jul 23 16:56:58 SAST 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Thu Jul 23 16:56:58 SAST 2026 [elapsed=2 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 Jul 23 16:56:59 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 Jul 23 16:57:00 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Thu Jul 23 16:57:00 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Thu Jul 23 14:57:00 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 645 1024 377 1.035 -0.197 0.108
+metbox2.sth.atl .PPS. 1 u 475 1024 377 0.294 -0.228 0.124
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 495 1024 377 23.307 -0.122 0.196
+ntp.as3741.net 146.64.58.41 2 u 480 1024 377 22.869 -0.296 0.356
-ntp2.as3741.net 129.134.28.123 2 u 415 1024 377 7.361 -1.183 0.118
+ntp2.inx.net.za 183.3.52.101 2 u 546 1024 377 7.289 -0.219 0.138
+ntp5.inx.net.za 102.176.229.251 2 u 499 1024 377 7.543 -0.175 0.105
#102.222.156.151 129.134.26.123 2 u 33 1024 377 24.687 0.082 2.433
+ntp2.nog.net.za 80.72.67.48 3 u 604 1024 377 7.590 -0.143 0.133
+139.84.231.68 ( 196.21.187.2 2 u 511 1024 377 22.733 -0.304 0.287
+ntp8.inx.net.za 183.3.52.101 2 u 694 1024 377 16.770 -0.123 0.107
Thu Jul 23 16:57:02 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (5600GB)
200GB available in /atlas/red...OK (9119GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.9T 5.4T 48% /
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 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/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 736G 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 Jul 23 16:57:03 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
Thu Jul 23 16:57:03 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Thu Jul 23 16:57:03 SAST 2026 [elapsed=7 sec] SERVICES2
Thu Jul 23 16:57:03 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Jul 23 16:57:07 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= 924kB time=00:00:29.56 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 Jul 23 17:00:23 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: 185.15 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Thu Jul 23 17:01:12 SAST 2026 [elapsed=256 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Jul 23 17:01:31 SAST 2026 [elapsed=275 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.5 IDLE
Thu Jul 23 17:01:31 SAST 2026 [elapsed=275 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (6 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.1C)
Checking CCD plane: Z0=+1673.00 DZDX=-883.00 DZDY=+1566.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Jul 23 17:01:31 SAST 2026 [elapsed=275 sec] WEATHER
status weather: C W H 6.7C 86% 45/51kph@303 DP1.8C/-12C/d IDLE
...OK
Thu Jul 23 17:01:32 SAST 2026 [elapsed=276 sec] MET
status...OK
met: c=N o=N Ro24d Cx0 Wo3d Ho4h To35d Do13h wait C IDLE
Thu Jul 23 17:01:32 SAST 2026 [elapsed=276 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Jul 23 17:01:34 SAST 2026 [elapsed=278 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 214.07 -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 2 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 400 4.4%
A 0.111s 746 8.1%
A 0.141s 1189 13.0%
A 0.172s 1781 19.5%
A 0.202s 2467 26.9%
A 0.232s 3258 35.6%
A 0.262s 4163 45.5%
A 0.293s 5116 55.9%
A 0.323s 5991 65.4%
A 0.353s 6780 74.1%
A 0.383s 7439 81.3%
A 0.414s 8000 87.4%
A 0.444s 8466 92.5%
A 0.474s 8794 96.1%
A 0.505s 9022 98.6%
A 0.535s 9151 100.0%
B 0.020s 1 0.0%
B 0.050s 96 1.0%
B 0.081s 380 4.2%
B 0.111s 726 7.9%
B 0.141s 1196 13.1%
B 0.172s 1775 19.4%
B 0.202s 2465 26.9%
B 0.233s 3257 35.6%
B 0.263s 4165 45.5%
B 0.293s 5103 55.7%
B 0.324s 5992 65.5%
B 0.354s 6796 74.2%
B 0.384s 7456 81.5%
B 0.414s 8026 87.7%
B 0.445s 8469 92.5%
B 0.475s 8808 96.2%
B 0.505s 9035 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9066 99.0%
A 0.081s 8775 95.9%
A 0.111s 8414 91.9%
A 0.141s 7969 87.1%
A 0.172s 7375 80.6%
A 0.202s 6692 73.1%
A 0.232s 5897 64.4%
A 0.262s 4982 54.4%
A 0.293s 4046 44.2%
A 0.323s 3166 34.6%
A 0.353s 2376 26.0%
A 0.383s 1708 18.7%
A 0.414s 1146 12.5%
A 0.444s 698 7.6%
A 0.474s 354 3.9%
A 0.505s 129 1.4%
A 0.535s 11 0.1%
A 0.565s -9 0.0%
B 0.020s 9145 99.9%
B 0.050s 9034 98.7%
B 0.081s 8775 95.9%
B 0.111s 8424 92.0%
B 0.141s 7958 86.9%
B 0.171s 7381 80.6%
B 0.202s 6695 73.1%
B 0.232s 5897 64.4%
B 0.263s 4985 54.5%
B 0.294s 4050 44.2%
B 0.327s 3054 33.4%
B 0.357s 2292 25.0%
B 0.387s 1631 17.8%
B 0.417s 1075 11.7%
B 0.448s 647 7.1%
B 0.478s 319 3.5%
B 0.508s 107 1.2%
B 0.539s 4 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 0.535 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 0.0 percent in 0.539 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.13e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9171 IDLE
Thu Jul 23 17:02:11 SAST 2026 [elapsed=315 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.5 IDLE
taking preflight exposures:
acam...OK
acam image:
123M Jul 23 17:02 /atlas/obs/03a/61245/03a61245e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Jul 23 17:02:34 SAST 2026 [elapsed=338 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (75 seconds old)
OTA humidity level...OK (19%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Jul 23 17:02:34 SAST 2026 [elapsed=338 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61244.62678783|info|galildriver|using focus model: foc=9187+(4.30)*11.9+(-0.40)*60.2=9214.1
61244.62679319|info|galildriver|o 2 IN | cass: 3045847 15.23 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53993702 9172 um b=8f M [focus]
61244.62680228|info|galildriver|o 2 IN | cass: 3045855 15.23 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53997715 9192 um b=8f M [focus]
61244.62681311|info|galildriver|o 2 IN | cass: 3045850 15.23 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54001887 9213 um b=8f M [focus]
61244.62681650|info|galildriver|o 2 IN | cass: 3045857 15.23 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54002061 9213 um b=8f M [focus]
61244.62682211|info|galildriver|o 2 IN | cass: 3045847 15.23 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54002197 9214 um b=0f [cmd]
bestfocus for o...OK
Thu Jul 23 17:02:37 SAST 2026 [elapsed=341 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Jul 23 17:03:03 SAST 2026 [elapsed=367 sec] Disabling mount tracking.
Waiting on the mount ... done.
Turning tracking off ... done.
Waiting on the mount ... done.
Recheck mount status ... done.
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 OFF redLED
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 2 OFF whiteLED
Thu Jul 23 17:03:04 SAST 2026 [elapsed=368 sec] NOTICES: det_dzdx=-883 is outside range +-250 from -558; det_dzdy=1566 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 Jul 23 17:03:04 SAST 2026 [elapsed=368 sec] Happy observing!
Thu Jul 23 17:03:04 SAST 2026 [elapsed=368 sec] Preflight took 368 seconds to complete.
Thu Jul 23 17:03:04 SAST 2026 [elapsed=368 sec] STARTING CLEANUP
Turning off LEDs
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 OFF redLED
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
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 113 1.2% A 0.081s 387 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1783 19.5% A 0.202s 2465 26.9% A 0.232s 3267 35.7% A 0.262s 4175 45.6% A 0.292s 5103 55.7% A 0.322s 5998 65.5% A 0.352s 6752 73.8% A 0.383s 7414 81.0% A 0.413s 7989 87.3% A 0.443s 8444 92.2% A 0.473s 8784 96.0% A 0.503s 9021 98.5% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 1 0.0% B 0.050s 105 1.1% B 0.080s 370 4.0% B 0.111s 715 7.8% B 0.141s 1184 12.9% B 0.171s 1752 19.1% B 0.201s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4139 45.2% B 0.292s 5072 55.4% B 0.322s 5959 65.1% B 0.353s 6749 73.7% B 0.383s 7423 81.1% B 0.413s 7986 87.2% B 0.443s 8444 92.2% B 0.474s 8786 96.0% B 0.504s 9017 98.5% B 0.534s 9137 99.8% B 0.564s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9048 98.8% A 0.081s 8777 95.9% A 0.111s 8422 92.0% A 0.141s 7958 86.9% A 0.171s 7381 80.6% A 0.201s 6691 73.1% A 0.232s 5894 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.322s 3166 34.6% A 0.352s 2387 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.443s 693 7.6% A 0.473s 368 4.0% A 0.503s 131 1.4% A 0.534s 15 0.2% A 0.564s 2 0.0% B 0.020s 9142 99.9% B 0.051s 9018 98.5% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7952 86.9% B 0.172s 7377 80.6% B 0.202s 6688 73.1% B 0.232s 5892 64.4% B 0.263s 4979 54.4% B 0.293s 4055 44.3% B 0.323s 3162 34.5% B 0.353s 2393 26.1% B 0.383s 1702 18.6% B 0.414s 1147 12.5% B 0.444s 699 7.6% B 0.474s 356 3.9% B 0.505s 131 1.4% B 0.535s 14 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R