STH Recent Preflight: 61184
Executing preflight for 61184 at Sat May 23 16:45:16 SAST 2026.
Log can be found in /atlas/obs/03/61184/preflight.dat.
Setting donefile '/atlas/obs/03/61184/preflight_complete.20260523144516.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260523144516.11042.
Sat May 23 16:45:16 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat May 23 16:45:16 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [f0b28b45-3cb8-4203-9223-d835b43393ad;1800]
Sat May 23 16:45:16 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat May 23 16:45:17 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat May 23 16:45:17 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat May 23 16:45:17 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat May 23 16:45:17 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1779547508
OK
Sat May 23 16:45:17 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat May 23 16:45:17 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
Sat May 23 16:45:19 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
Sat May 23 16:45:20 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Sat May 23 16:45:20 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Sat May 23 14:45:20 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 1413 1024 376 0.989 0.009 0.061
-metbox2.sth.atl .PPS. 1 u 969 1024 377 0.313 -0.025 0.047
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 225 1024 377 24.271 -0.519 0.884
+ntp.as3741.net 210.182.58.253 2 u 890 1024 377 22.761 -0.044 0.498
-ntp2.as3741.net 129.134.26.123 2 u 190 1024 377 7.204 0.205 0.066
-ntp2.inx.net.za 210.182.58.253 2 u 98 1024 377 7.310 0.031 0.261
102.222.100.153 196.21.187.2 2 u 24d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 183.3.52.101 2 u 230 1024 377 7.522 -0.151 0.048
+flipping.cloudh 80.72.67.48 3 u 869 1024 377 7.718 0.087 0.226
102.216.37.99 ( 210.182.58.253 2 u 110d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 758 1024 377 22.720 -0.011 0.485
Sat May 23 16:45:22 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6424GB)
200GB available in /atlas/red...OK (9675GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.1T 6.2T 40% /
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 4.2T 9.3T 31% /
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 739G 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
Sat May 23 16:45:22 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
Sat May 23 16:45:22 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Sat May 23 16:45:23 SAST 2026 [elapsed=6 sec] SERVICES2
Sat May 23 16:45:23 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat May 23 16:45:27 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= 912kB time=00:00:29.18 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
Sat May 23 16:48:42 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: 122.13 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Sat May 23 16:49:41 SAST 2026 [elapsed=265 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat May 23 16:50:02 SAST 2026 [elapsed=286 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.2 IDLE
Sat May 23 16:50:02 SAST 2026 [elapsed=286 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.9C)
Checking CCD plane: Z0=+1712.00 DZDX=-886.00 DZDY=+2419.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat May 23 16:50:02 SAST 2026 [elapsed=286 sec] WEATHER
status weather: clear 13.1C 61% 6/6kph@38 DP7.5C/3C/d IDLE
...OK
Sat May 23 16:50:02 SAST 2026 [elapsed=286 sec] MET
status...OK
met: c=N o=Y Ro2d Co7h Wo2d Ho4h To2d Do1d IDLE
Sat May 23 16:50:02 SAST 2026 [elapsed=286 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat May 23 16:50:04 SAST 2026 [elapsed=288 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 151.06 -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 -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 108 1.2%
A 0.081s 402 4.4%
A 0.111s 747 8.2%
A 0.141s 1206 13.2%
A 0.172s 1804 19.7%
A 0.202s 2490 27.2%
A 0.232s 3285 35.9%
A 0.263s 4194 45.8%
A 0.293s 5144 56.2%
A 0.323s 6018 65.7%
A 0.354s 6803 74.3%
A 0.384s 7458 81.5%
A 0.414s 8016 87.6%
A 0.444s 8479 92.6%
A 0.475s 8801 96.1%
A 0.505s 9027 98.6%
A 0.535s 9155 100.0%
B 0.020s 1 0.0%
B 0.050s 99 1.1%
B 0.081s 385 4.2%
B 0.111s 740 8.1%
B 0.141s 1214 13.3%
B 0.172s 1797 19.6%
B 0.202s 2488 27.2%
B 0.232s 3286 35.9%
B 0.263s 4198 45.9%
B 0.293s 5129 56.0%
B 0.323s 6020 65.8%
B 0.354s 6797 74.3%
B 0.384s 7456 81.5%
B 0.414s 8026 87.7%
B 0.444s 8466 92.5%
B 0.475s 8807 96.2%
B 0.505s 9034 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.024s 9147 99.9%
A 0.055s 9003 98.4%
A 0.096s 8602 94.0%
A 0.138s 8066 88.1%
A 0.172s 7373 80.5%
A 0.205s 6551 71.6%
A 0.239s 5698 62.2%
A 0.274s 4646 50.8%
A 0.305s 3609 39.4%
A 0.339s 2668 29.1%
A 0.372s 1954 21.3%
A 0.404s 1281 14.0%
A 0.440s 725 7.9%
A 0.476s 345 3.8%
A 0.508s 93 1.0%
A 0.540s -2 0.0%
B 0.020s 9145 99.9%
B 0.050s 9033 98.7%
B 0.081s 8772 95.8%
B 0.111s 8424 92.0%
B 0.141s 7957 86.9%
B 0.171s 7380 80.6%
B 0.202s 6695 73.1%
B 0.232s 5897 64.4%
B 0.262s 4984 54.4%
B 0.293s 4050 44.2%
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 696 7.6%
B 0.474s 346 3.8%
B 0.505s 122 1.3%
B 0.535s 11 0.1%
B 0.565s -4 0.0%
A 1 0.0mm 15 N F R | B -4 -0.1mm 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 0.540 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=1.08e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9227 IDLE
Sat May 23 16:50:43 SAST 2026 [elapsed=327 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.2 IDLE
taking preflight exposures:
acam...OK
acam image:
124M May 23 16:51 /atlas/obs/03a/61184/03a61184e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat May 23 16:51:05 SAST 2026 [elapsed=349 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (48 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat May 23 16:51:05 SAST 2026 [elapsed=349 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61183.61882010|info|galildriver|using focus model: foc=9187+(4.30)*15.9+(-0.40)*60.2=9231.3
61183.61882534|info|galildriver|o 2 IN | cass: 3046827 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54004896 9228 um b=8f M [focus]
61183.61883596|info|galildriver|o 2 IN | cass: 3046830 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54004967 9228 um b=2f [cmd]
bestfocus for o...OK
Sat May 23 16:51:07 SAST 2026 [elapsed=351 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat May 23 16:51:37 SAST 2026 [elapsed=381 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
Sat May 23 16:51:39 SAST 2026 [elapsed=383 sec] NOTICES: det_dzdx=-886 is outside range +-250 from -558; det_dzdy=2419 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sat May 23 16:51:39 SAST 2026 [elapsed=383 sec] Happy observing!
Sat May 23 16:51:39 SAST 2026 [elapsed=383 sec] Preflight took 383 seconds to complete.
Sat May 23 16:51:39 SAST 2026 [elapsed=383 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 0.051s 114 1.2% A 0.081s 384 4.2% A 0.111s 736 8.0% A 0.141s 1196 13.1% A 0.172s 1782 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 0.323s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7433 81.2% A 0.413s 8005 87.4% A 0.444s 8459 92.4% A 0.474s 8793 96.1% A 0.504s 9022 98.6% A 0.534s 9138 99.8% A 0.564s 9153 100.0% B 0.020s 1 0.0% B 0.050s 114 1.2% B 0.081s 378 4.1% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1774 19.4% B 0.202s 2467 26.9% B 0.232s 3268 35.7% B 0.262s 4137 45.2% B 0.292s 5073 55.4% B 0.323s 5962 65.1% B 0.353s 6748 73.7% B 0.383s 7419 81.0% B 0.413s 7986 87.2% B 0.444s 8442 92.2% B 0.474s 8786 96.0% B 0.504s 9018 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9056 98.9% A 0.081s 8788 96.0% A 0.111s 8433 92.1% A 0.141s 7976 87.1% A 0.172s 7401 80.8% A 0.202s 6716 73.4% A 0.232s 5922 64.7% A 0.262s 5013 54.8% A 0.292s 4069 44.5% A 0.323s 3193 34.9% A 0.353s 2409 26.3% A 0.383s 1730 18.9% A 0.413s 1164 12.7% A 0.443s 705 7.7% A 0.474s 368 4.0% A 0.504s 131 1.4% A 0.534s 15 0.2% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9012 98.4% B 0.081s 8762 95.7% B 0.111s 8408 91.9% B 0.141s 7935 86.7% B 0.171s 7358 80.4% B 0.202s 6667 72.8% B 0.232s 5865 64.1% B 0.262s 4950 54.1% B 0.292s 4022 43.9% B 0.323s 3137 34.3% B 0.353s 2372 25.9% B 0.383s 1682 18.4% B 0.413s 1130 12.3% B 0.443s 700 7.6% B 0.474s 355 3.9% B 0.504s 132 1.4% B 0.534s 15 0.2% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R