STH Recent Preflight: 61129
Executing preflight for 61129 at Sun Mar 29 17:38:52 SAST 2026.
Log can be found in /atlas/obs/03/61129/preflight.dat.
Setting donefile '/atlas/obs/03/61129/preflight_complete.20260329153852.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260329153852.15307.
Sun Mar 29 17:38:52 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Mar 29 17:38:52 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [4aa81f7e-f0f9-4578-8ce3-a171fbf07c7f;1800]
Sun Mar 29 17:38:52 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun Mar 29 17:38:53 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun Mar 29 17:38:53 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sun Mar 29 17:38:53 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun Mar 29 17:38:53 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1774798732
OK
Sun Mar 29 17:38:53 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun Mar 29 17:38:53 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
Sun Mar 29 17:38:55 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
Sun Mar 29 17:38:55 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sun Mar 29 17:38:55 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sun Mar 29 15:38:55 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 103 1024 377 1.034 0.069 0.115
+metbox2.sth.atl .PPS. 1 u 319 1024 377 0.286 0.000 0.063
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 155.232.19.6 2 u 17 1024 377 25.121 0.031 0.375
-ntp.as3741.net 146.64.8.7 2 u 760 1024 377 22.837 -0.076 0.076
-ntp2.as3741.net 155.232.19.6 2 u 573 1024 377 7.308 0.306 0.049
-ntp2.inx.net.za 210.182.58.253 2 u 533 1024 377 7.273 0.401 0.054
-102.222.100.153 155.232.19.6 2 u 837 1024 377 7.893 0.360 0.359
-ntp5.inx.net.za 183.3.52.101 2 u 146 1024 377 7.886 0.404 0.043
+flipping.cloudh 80.72.67.48 3 u 196 1024 377 8.117 0.062 0.127
102.216.37.99 ( 210.182.58.253 2 u 55d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 102.176.229.251 2 u 512 1024 377 23.556 -1.238 0.911
Sun Mar 29 17:38:58 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6228GB)
200GB available in /atlas/red...OK (9084GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.3T 6.0T 42% /
admin:/dev/loop1 105M 105M 0 100% /snap/core/17272
admin:/dev/loop2 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 117G 21G 91G 19% /
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
archon:/dev/loop2 105M 105M 0 100% /snap/core/17272
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
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 36% /
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/md0p1 15T 1.7T 12T 13% /
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 735G 13T 6% /
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
Sun Mar 29 17:38:58 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
Sun Mar 29 17:38:58 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Sun Mar 29 17:38:58 SAST 2026 [elapsed=6 sec] SERVICES2
Sun Mar 29 17:38:58 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Mar 29 17:39:02 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= 912kB time=00:00:29.18 bitrate= 256.0kbits/s speed=1.46e+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
Sun Mar 29 17:41:49 SAST 2026 [elapsed=177 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: 81.24 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Sun Mar 29 17:42:48 SAST 2026 [elapsed=236 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Mar 29 17:43:09 SAST 2026 [elapsed=257 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=48.2 IDLE
Sun Mar 29 17:43:09 SAST 2026 [elapsed=257 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 (-54.0C)
Checking CCD plane: Z0=+1761.00 DZDX=-895.00 DZDY=+3556.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Mar 29 17:43:09 SAST 2026 [elapsed=257 sec] WEATHER
status weather: clear 20.7C 22% 17/29kph@306 DP22.4C/-6C/d IDLE
...OK
Sun Mar 29 17:43:10 SAST 2026 [elapsed=258 sec] MET
status...OK
met: c=N o=Y Ro1d Co1d Wo1d Ho1d To1d Do1d IDLE
Sun Mar 29 17:43:10 SAST 2026 [elapsed=258 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Mar 29 17:43:10 SAST 2026 [elapsed=258 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 110.16 -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 -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 7 0.1%
A 0.051s 110 1.2%
A 0.081s 393 4.3%
A 0.111s 733 8.0%
A 0.141s 1191 13.0%
A 0.171s 1781 19.5%
A 0.202s 2465 26.9%
A 0.232s 3262 35.6%
A 0.262s 4135 45.2%
A 0.292s 5085 55.5%
A 0.323s 5963 65.1%
A 0.353s 6756 73.8%
A 0.383s 7420 81.1%
A 0.413s 7983 87.2%
A 0.444s 8452 92.3%
A 0.474s 8781 95.9%
A 0.504s 9015 98.5%
A 0.534s 9149 99.9%
B 0.020s 1 0.0%
B 0.050s 98 1.1%
B 0.081s 385 4.2%
B 0.111s 726 7.9%
B 0.141s 1199 13.1%
B 0.171s 1779 19.4%
B 0.202s 2465 26.9%
B 0.232s 3258 35.6%
B 0.262s 4169 45.5%
B 0.293s 5103 55.7%
B 0.323s 6018 65.7%
B 0.353s 6797 74.3%
B 0.384s 7455 81.4%
B 0.414s 8027 87.7%
B 0.444s 8467 92.5%
B 0.474s 8806 96.2%
B 0.505s 9028 98.6%
B 0.535s 9143 99.9%
B 0.565s 9159 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9055 98.9%
A 0.081s 8759 95.7%
A 0.111s 8402 91.8%
A 0.141s 7968 87.0%
A 0.171s 7350 80.3%
A 0.202s 6693 73.1%
A 0.232s 5896 64.4%
A 0.262s 4983 54.4%
A 0.292s 4043 44.2%
A 0.323s 3165 34.6%
A 0.353s 2354 25.7%
A 0.383s 1711 18.7%
A 0.413s 1148 12.5%
A 0.444s 698 7.6%
A 0.474s 356 3.9%
A 0.504s 130 1.4%
A 0.535s 13 0.1%
A 0.565s -5 0.0%
B 0.020s 9145 99.9%
B 0.050s 9028 98.6%
B 0.081s 8760 95.7%
B 0.111s 8411 91.9%
B 0.141s 7939 86.7%
B 0.171s 7359 80.4%
B 0.202s 6669 72.9%
B 0.232s 5868 64.1%
B 0.262s 4955 54.1%
B 0.293s 4020 43.9%
B 0.323s 3137 34.3%
B 0.353s 2361 25.8%
B 0.384s 1693 18.5%
B 0.414s 1125 12.3%
B 0.444s 686 7.5%
B 0.475s 348 3.8%
B 0.505s 123 1.3%
B 0.535s 11 0.1%
B 0.566s -4 0.0%
A 0 0.0mm 15 N F R | B -4 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 99.9 percent in 0.534 seconds.
Shutter B opened to 100.0 percent in 0.565 seconds.
Shutter A closed to 0.0 percent in 0.565 seconds.
Shutter B closed to 0.0 percent in 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 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=9246 IDLE
Sun Mar 29 17:43:59 SAST 2026 [elapsed=307 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=48.2 IDLE
taking preflight exposures:
acam...OK
acam image:
126M Mar 29 17:44 /atlas/obs/03a/61129/03a61129e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Mar 29 17:44:22 SAST 2026 [elapsed=330 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (5 seconds old)
OTA humidity level...OK (4%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Mar 29 17:44:22 SAST 2026 [elapsed=330 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61128.65581501|info|galildriver|using focus model: foc=9187+(4.30)*20.4+(-0.40)*60.2=9250.6
61128.65582026|info|galildriver|o 2 IN | cass: 3047666 15.24 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54008732 9247 um b=8f M [focus]
61128.65583085|info|galildriver|o 2 IN | cass: 3047669 15.24 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54008806 9247 um b=2f [cmd]
bestfocus for o...OK
Sun Mar 29 17:44:24 SAST 2026 [elapsed=332 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Mar 29 17:44:54 SAST 2026 [elapsed=362 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
Sun Mar 29 17:44:55 SAST 2026 [elapsed=363 sec] NOTICES: det_dzdx=-895 is outside range +-250 from -558; det_dzdy=3556 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sun Mar 29 17:44:55 SAST 2026 [elapsed=363 sec] Happy observing!
Sun Mar 29 17:44:55 SAST 2026 [elapsed=363 sec] Preflight took 363 seconds to complete.
Sun Mar 29 17:44:55 SAST 2026 [elapsed=363 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 4 0.0% A 0.050s 110 1.2% A 0.081s 373 4.1% A 0.111s 718 7.8% A 0.141s 1180 12.9% A 0.171s 1759 19.2% A 0.201s 2441 26.7% A 0.232s 3211 35.1% A 0.262s 4113 44.9% A 0.292s 5077 55.5% A 0.322s 5963 65.1% A 0.353s 6756 73.8% A 0.383s 7391 80.7% A 0.413s 7991 87.3% A 0.444s 8432 92.1% A 0.474s 8779 95.9% A 0.504s 9024 98.6% A 0.534s 9137 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 120 1.3% B 0.081s 390 4.3% B 0.111s 743 8.1% B 0.141s 1219 13.3% B 0.172s 1794 19.6% B 0.202s 2491 27.2% B 0.232s 3296 36.0% B 0.262s 4199 45.9% B 0.293s 5133 56.1% B 0.323s 6015 65.7% B 0.354s 6795 74.2% B 0.384s 7460 81.5% B 0.414s 8018 87.6% B 0.445s 8481 92.6% B 0.476s 8813 96.3% B 0.506s 9033 98.7% B 0.536s 9141 99.9% B 0.567s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9149 99.9% A 0.051s 9038 98.7% A 0.081s 8764 95.7% A 0.112s 8397 91.7% A 0.142s 7924 86.6% A 0.173s 7336 80.1% A 0.203s 6638 72.5% A 0.234s 5840 63.8% A 0.264s 4881 53.3% A 0.294s 3951 43.2% A 0.325s 3083 33.7% A 0.355s 2312 25.3% A 0.386s 1656 18.1% A 0.416s 1092 11.9% A 0.447s 645 7.0% A 0.478s 322 3.5% A 0.508s 102 1.1% A 0.538s 8 0.1% B 0.020s 9144 99.9% B 0.051s 9017 98.5% B 0.082s 8760 95.7% B 0.112s 8408 91.9% B 0.143s 7916 86.5% B 0.173s 7336 80.1% B 0.204s 6638 72.5% B 0.235s 5808 63.4% B 0.265s 4889 53.4% B 0.295s 3964 43.3% B 0.326s 3082 33.7% B 0.357s 2320 25.3% B 0.387s 1623 17.7% B 0.417s 1085 11.9% B 0.448s 648 7.1% B 0.478s 321 3.5% B 0.508s 110 1.2% B 0.539s 8 0.1% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R