STH Recent Preflight: 61134
Executing preflight for 61134 at Fri Apr 3 17:32:26 SAST 2026.
Log can be found in /atlas/obs/03/61134/preflight.dat.
Setting donefile '/atlas/obs/03/61134/preflight_complete.20260403153226.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260403153226.15307.
Fri Apr 3 17:32:27 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Apr 3 17:32:27 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [5c6ad301-45d8-44d5-95ba-c076ebf471e6;1800]
Fri Apr 3 17:32:27 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Fri Apr 3 17:32:28 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Fri Apr 3 17:32:28 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Fri Apr 3 17:32:28 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Apr 3 17:32:28 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1775230346
OK
Fri Apr 3 17:32:28 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Apr 3 17:32:28 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 Apr 3 17:32:29 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
Fri Apr 3 17:32:30 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Apr 3 17:32:30 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Fri Apr 3 15:32:30 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 320 1024 77 1.036 -0.019 0.073
+metbox2.sth.atl .PPS. 1 u 921 1024 377 0.275 -0.043 0.053
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 241 1024 377 25.108 0.218 0.855
-ntp.as3741.net 146.64.8.7 2 u 674 1024 377 22.806 -0.048 0.112
-ntp2.as3741.net 155.232.19.6 2 u 590 1024 377 7.265 0.153 0.050
-ntp2.inx.net.za 210.182.58.253 2 u 549 1024 377 7.336 0.428 0.057
-102.222.100.153 155.232.19.6 2 u 689 1024 377 7.903 1.173 0.290
-ntp5.inx.net.za 102.176.229.251 2 u 665 1024 377 7.957 0.402 0.110
+flipping.cloudh 80.72.67.48 3 u 378 1024 377 8.081 0.088 0.044
102.216.37.99 ( 210.182.58.253 2 u 60d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 706 1024 377 23.630 0.491 0.307
Fri Apr 3 17:32:33 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6221GB)
200GB available in /atlas/red...OK (8842GB)
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 5.0T 8.5T 37% /
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
Fri Apr 3 17:32:33 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
Fri Apr 3 17:32:33 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Fri Apr 3 17:32:33 SAST 2026 [elapsed=6 sec] SERVICES2
Fri Apr 3 17:32:33 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Apr 3 17:32:37 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= 926kB time=00:00:29.63 bitrate= 256.0kbits/s speed=1.47e+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 Apr 3 17:35:57 SAST 2026 [elapsed=210 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: 84.69 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Fri Apr 3 17:36:55 SAST 2026 [elapsed=268 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Apr 3 17:37:17 SAST 2026 [elapsed=290 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Fri Apr 3 17:37:17 SAST 2026 [elapsed=290 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (10 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.5C)
Checking CCD plane: Z0=+1724.00 DZDX=-882.00 DZDY=+2761.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri Apr 3 17:37:17 SAST 2026 [elapsed=290 sec] WEATHER
status weather: C H+ 14.6C 96% 16/18kph@313 DP0.6C/-1C/d IDLE
...OK
Fri Apr 3 17:37:17 SAST 2026 [elapsed=290 sec] MET
status...OK
met: c=Y o=N Ro1h Cx0 Wo2d Hx21h To6d Do21h wait CH IDLE
Fri Apr 3 17:37:17 SAST 2026 [elapsed=290 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Apr 3 17:37:17 SAST 2026 [elapsed=290 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 113.62 -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 -1 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 9 0.1%
A 0.051s 102 1.1%
A 0.081s 392 4.3%
A 0.111s 733 8.0%
A 0.142s 1190 13.0%
A 0.172s 1783 19.5%
A 0.203s 2464 26.9%
A 0.233s 3260 35.6%
A 0.263s 4164 45.5%
A 0.294s 5114 55.9%
A 0.324s 6020 65.8%
A 0.354s 6802 74.3%
A 0.385s 7458 81.5%
A 0.415s 8016 87.6%
A 0.446s 8478 92.6%
A 0.476s 8801 96.1%
A 0.507s 9033 98.7%
A 0.537s 9154 100.0%
B 0.020s 0 0.0%
B 0.051s 91 1.0%
B 0.081s 384 4.2%
B 0.111s 713 7.8%
B 0.142s 1197 13.1%
B 0.172s 1777 19.4%
B 0.203s 2464 26.9%
B 0.233s 3258 35.6%
B 0.263s 4169 45.5%
B 0.294s 5130 56.0%
B 0.324s 6019 65.8%
B 0.355s 6798 74.3%
B 0.385s 7457 81.5%
B 0.415s 8027 87.7%
B 0.446s 8469 92.5%
B 0.476s 8806 96.2%
B 0.506s 9035 98.7%
B 0.537s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9058 99.0%
A 0.081s 8762 95.7%
A 0.111s 8401 91.8%
A 0.142s 7951 86.9%
A 0.172s 7330 80.1%
A 0.203s 6670 72.9%
A 0.233s 5840 63.8%
A 0.263s 4923 53.8%
A 0.293s 3987 43.6%
A 0.324s 3109 34.0%
A 0.354s 2328 25.4%
A 0.385s 1671 18.3%
A 0.415s 1115 12.2%
A 0.445s 672 7.3%
A 0.476s 337 3.7%
A 0.506s 118 1.3%
A 0.536s 7 0.1%
B 0.020s 9146 99.9%
B 0.050s 9034 98.7%
B 0.081s 8771 95.8%
B 0.111s 8425 92.0%
B 0.142s 7957 86.9%
B 0.172s 7379 80.6%
B 0.202s 6694 73.1%
B 0.232s 5898 64.4%
B 0.263s 4985 54.5%
B 0.293s 4051 44.3%
B 0.323s 3163 34.6%
B 0.354s 2362 25.8%
B 0.384s 1693 18.5%
B 0.415s 1124 12.3%
B 0.445s 684 7.5%
B 0.475s 346 3.8%
B 0.506s 121 1.3%
B 0.536s 10 0.1%
B 0.567s -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 0.537 seconds.
Shutter B opened to 99.9 percent in 0.537 seconds.
Shutter A closed to 0.1 percent in 0.536 seconds.
Shutter B closed to 0.0 percent in 0.567 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 240kB time=00:00:07.68 bitrate= 256.1kbits/s speed=1.07e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9234 IDLE
Fri Apr 3 17:37:58 SAST 2026 [elapsed=331 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 Apr 3 17:38 /atlas/obs/03a/61134/03a61134e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Apr 3 17:38:20 SAST 2026 [elapsed=353 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (3 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Apr 3 17:38:20 SAST 2026 [elapsed=353 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61133.65163308|info|galildriver|using focus model: foc=9187+(4.30)*16.4+(-0.40)*60.2=9233.4
61133.65163798|info|galildriver|o 2 IN | cass: 3049777 15.25 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54006299 9235 um b=2f [cmd]
bestfocus for o...OK
Fri Apr 3 17:38:22 SAST 2026 [elapsed=355 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Apr 3 17:38:51 SAST 2026 [elapsed=384 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 Apr 3 17:38:52 SAST 2026 [elapsed=385 sec] NOTICES: det_dzdx=-882 is outside range +-250 from -558; det_dzdy=2761 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 Apr 3 17:38:52 SAST 2026 [elapsed=385 sec] Happy observing!
Fri Apr 3 17:38:52 SAST 2026 [elapsed=385 sec] Preflight took 385 seconds to complete.
Fri Apr 3 17:38:52 SAST 2026 [elapsed=385 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 0.050s 111 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 0.202s 2440 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5077 55.5% A 0.323s 5963 65.1% A 0.353s 6757 73.8% A 0.383s 7411 81.0% A 0.413s 7991 87.3% A 0.444s 8446 92.3% A 0.474s 8778 95.9% A 0.504s 9024 98.6% A 0.534s 9137 99.8% A 0.565s 9152 100.0% B 0.020s 2 0.0% B 0.050s 121 1.3% B 0.081s 393 4.3% B 0.111s 742 8.1% B 0.141s 1221 13.3% B 0.171s 1795 19.6% B 0.201s 2490 27.2% B 0.232s 3293 36.0% B 0.262s 4167 45.5% B 0.292s 5133 56.1% B 0.322s 6016 65.7% B 0.353s 6794 74.2% B 0.383s 7460 81.5% B 0.413s 8018 87.6% B 0.444s 8455 92.4% B 0.474s 8805 96.2% B 0.504s 9027 98.6% B 0.535s 9140 99.8% B 0.565s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9155 100.0% A 0.050s 9045 98.8% A 0.081s 8773 95.8% A 0.111s 8413 91.9% A 0.141s 7948 86.8% A 0.171s 7384 80.7% A 0.202s 6668 72.8% A 0.232s 5903 64.5% A 0.262s 4981 54.4% A 0.292s 4043 44.2% A 0.322s 3171 34.6% A 0.353s 2382 26.0% A 0.383s 1714 18.7% A 0.413s 1145 12.5% A 0.444s 693 7.6% A 0.474s 359 3.9% A 0.504s 124 1.4% A 0.534s 15 0.2% A 0.565s 3 0.0% B 0.020s 9143 99.9% B 0.050s 9016 98.5% B 0.081s 8772 95.8% B 0.111s 8421 92.0% B 0.141s 7952 86.9% B 0.171s 7378 80.6% B 0.202s 6688 73.1% B 0.232s 5891 64.4% B 0.262s 4981 54.4% B 0.292s 4053 44.3% B 0.322s 3164 34.6% B 0.353s 2392 26.1% B 0.383s 1705 18.6% B 0.413s 1148 12.5% B 0.443s 700 7.6% B 0.473s 357 3.9% B 0.504s 132 1.4% B 0.534s 16 0.2% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B -1 -0.0mm 15 N F R