STH Recent Preflight: 61150
Executing preflight for 61150 at Sun Apr 19 17:13:14 SAST 2026.
Log can be found in /atlas/obs/03/61150/preflight.dat.
Setting donefile '/atlas/obs/03/61150/preflight_complete.20260419151314.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260419151314.11042.
Sun Apr 19 17:13:14 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Apr 19 17:13:14 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [4b9678a1-0ff5-4798-940a-88024b92ef4a;1800]
Sun Apr 19 17:13:14 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun Apr 19 17:13:15 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun Apr 19 17:13:15 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sun Apr 19 17:13:15 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun Apr 19 17:13:15 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1776611586
OK
Sun Apr 19 17:13:15 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun Apr 19 17:13:15 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 Apr 19 17:13:17 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 Apr 19 17:13:18 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Sun Apr 19 17:13:18 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Sun Apr 19 15:13:18 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 96m 1024 340 1.040 0.312 0.170
*metbox2.sth.atl .PPS. 1 u 949 1024 377 0.277 0.168 0.071
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 196.21.187.2 2 u 595 1024 377 24.050 1.183 0.757
+ntp.as3741.net 146.64.58.41 2 u 534 1024 377 22.783 0.151 0.080
-ntp2.as3741.net 155.232.19.7 2 u 389 1024 377 7.305 0.477 0.049
-ntp2.inx.net.za 210.182.58.253 2 u 968 1024 377 7.289 0.624 0.113
-102.222.100.153 155.232.19.6 2 u 106 1024 377 7.784 0.616 0.607
-ntp5.inx.net.za 183.3.52.101 2 u 79 1024 377 7.821 0.642 0.106
+flipping.cloudh 80.72.67.48 3 u 874 1024 377 8.125 0.522 0.096
102.216.37.99 ( 210.182.58.253 2 u 76d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 102.176.229.251 2 u 345 1024 377 23.540 0.481 0.993
Sun Apr 19 17:13:21 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (6079GB)
200GB available in /atlas/red...OK (8768GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.5T 5.8T 44% /
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 8.4T 38% /
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 736G 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 Apr 19 17:13:22 SAST 2026 [elapsed=8 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 Apr 19 17:13:22 SAST 2026 [elapsed=8 sec] Disabling mount tracking.
Sun Apr 19 17:13:22 SAST 2026 [elapsed=8 sec] SERVICES2
Sun Apr 19 17:13:22 SAST 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Apr 19 17:13:26 SAST 2026 [elapsed=12 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=1.46e+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 Apr 19 17:16:38 SAST 2026 [elapsed=204 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: 95.62 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Sun Apr 19 17:17:37 SAST 2026 [elapsed=263 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Apr 19 17:17:59 SAST 2026 [elapsed=285 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.8 IDLE
Sun Apr 19 17:17:59 SAST 2026 [elapsed=285 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (4 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.4C)
Checking CCD plane: Z0=+1655.00 DZDX=-886.00 DZDY=+1126.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Apr 19 17:17:59 SAST 2026 [elapsed=285 sec] WEATHER
status weather: R+ H+ 5.0C 94% 43/56kph@327 DP1.0C/11C/d IDLE
...OK
Sun Apr 19 17:17:59 SAST 2026 [elapsed=285 sec] MET
status...OK
met: c=Y o=N Rx2h Cx10 Wx0 Hx1h To22d Do2d wait RCWH IDLE
Sun Apr 19 17:17:59 SAST 2026 [elapsed=285 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Apr 19 17:18:01 SAST 2026 [elapsed=287 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 124.55 -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 -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 9 0.1%
A 0.050s 106 1.2%
A 0.081s 387 4.2%
A 0.111s 732 8.0%
A 0.141s 1190 13.0%
A 0.172s 1780 19.4%
A 0.202s 2465 26.9%
A 0.232s 3259 35.6%
A 0.262s 4161 45.5%
A 0.293s 5116 55.9%
A 0.323s 5991 65.4%
A 0.353s 6781 74.1%
A 0.384s 7419 81.0%
A 0.414s 7984 87.2%
A 0.444s 8453 92.3%
A 0.474s 8784 96.0%
A 0.505s 9023 98.6%
A 0.535s 9152 100.0%
B 0.020s 2 0.0%
B 0.050s 104 1.1%
B 0.081s 388 4.2%
B 0.111s 740 8.1%
B 0.141s 1213 13.3%
B 0.171s 1795 19.6%
B 0.202s 2488 27.2%
B 0.232s 3283 35.9%
B 0.262s 4197 45.8%
B 0.292s 5131 56.1%
B 0.323s 5992 65.5%
B 0.353s 6774 74.0%
B 0.383s 7437 81.2%
B 0.413s 8012 87.5%
B 0.444s 8457 92.4%
B 0.474s 8799 96.1%
B 0.504s 9031 98.7%
B 0.534s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9065 99.0%
A 0.081s 8775 95.9%
A 0.111s 8417 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 0.293s 4046 44.2%
A 0.323s 3165 34.6%
A 0.353s 2377 26.0%
A 0.383s 1727 18.9%
A 0.413s 1163 12.7%
A 0.444s 709 7.7%
A 0.474s 364 4.0%
A 0.504s 134 1.5%
A 0.534s 12 0.1%
A 0.565s -9 0.0%
B 0.020s 9145 99.9%
B 0.050s 9042 98.8%
B 0.081s 8778 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 4985 54.5%
B 0.293s 4049 44.2%
B 0.323s 3163 34.6%
B 0.353s 2384 26.0%
B 0.384s 1712 18.7%
B 0.414s 1140 12.5%
B 0.444s 696 7.6%
B 0.475s 353 3.9%
B 0.505s 125 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 0.535 seconds.
Shutter B opened to 99.9 percent in 0.534 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=1.05e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[1] foc=9200 IDLE
Sun Apr 19 17:18:50 SAST 2026 [elapsed=336 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.8 IDLE
taking preflight exposures:
acam...OK
acam image:
123M Apr 19 17:19 /atlas/obs/03a/61150/03a61150e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Apr 19 17:19:13 SAST 2026 [elapsed=359 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (26 seconds old)
OTA humidity level...OK (18%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Apr 19 17:19:13 SAST 2026 [elapsed=359 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61149.63835137|info|galildriver|using focus model: foc=9187+(4.30)*9.4+(-0.40)*60.2=9203.3
61149.63835661|info|galildriver|c 1 IN | cass: 23225 0.12 mm b=23 move=NO | arm: 408768 475.87 mm b=03 move=OK | foc: 53999409 9200 um b=8f M [focus]
61149.63836721|info|galildriver|c 1 IN | cass: 23229 0.12 mm b=23 move=NO | arm: 408768 475.87 mm b=03 move=OK | foc: 53999477 9201 um b=2f [cmd]
bestfocus for c...OK
Sun Apr 19 17:19:15 SAST 2026 [elapsed=361 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Apr 19 17:19:45 SAST 2026 [elapsed=391 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 Apr 19 17:19:46 SAST 2026 [elapsed=392 sec] NOTICES: det_dzdx=-886 is outside range +-250 from -558; det_dzdy=1126 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 Apr 19 17:19:46 SAST 2026 [elapsed=392 sec] Happy observing!
Sun Apr 19 17:19:46 SAST 2026 [elapsed=392 sec] Preflight took 392 seconds to complete.
Sun Apr 19 17:19:46 SAST 2026 [elapsed=392 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 114 1.2% A 0.081s 386 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1783 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.322s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7434 81.2% A 0.413s 7989 87.3% A 0.443s 8444 92.2% A 0.474s 8781 95.9% A 0.504s 9022 98.6% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 102 1.1% B 0.080s 371 4.1% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1754 19.2% B 0.201s 2444 26.7% B 0.231s 3239 35.4% B 0.262s 4137 45.2% B 0.292s 5072 55.4% B 0.322s 5962 65.1% B 0.352s 6748 73.7% B 0.383s 7418 81.0% B 0.413s 7985 87.2% B 0.443s 8443 92.2% B 0.474s 8785 96.0% B 0.504s 9017 98.5% B 0.534s 9136 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9044 98.8% A 0.081s 8767 95.8% A 0.111s 8407 91.8% A 0.141s 7957 86.9% A 0.171s 7379 80.6% A 0.202s 6692 73.1% A 0.232s 5893 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.322s 3165 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.443s 694 7.6% A 0.474s 358 3.9% A 0.504s 126 1.4% A 0.534s 14 0.2% A 0.565s 1 0.0% B 0.020s 9145 99.9% B 0.050s 9018 98.5% B 0.081s 8771 95.8% B 0.111s 8420 92.0% B 0.141s 7935 86.7% B 0.171s 7357 80.4% B 0.202s 6690 73.1% B 0.232s 5892 64.4% B 0.262s 4952 54.1% B 0.293s 4051 44.3% B 0.323s 3163 34.6% B 0.353s 2392 26.1% B 0.383s 1706 18.6% B 0.414s 1149 12.6% B 0.444s 700 7.6% B 0.474s 357 3.9% B 0.504s 133 1.5% B 0.534s 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