STH Recent Preflight: 61164
Executing preflight for 61164 at Sun May 3 16:59:07 SAST 2026.
Log can be found in /atlas/obs/03/61164/preflight.dat.
Setting donefile '/atlas/obs/03/61164/preflight_complete.20260503145907.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260503145907.11042.
Sun May 3 16:59:08 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun May 3 16:59:08 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [9eefa387-5624-4855-a531-3f87bd3cbd59;1800]
Sun May 3 16:59:08 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun May 3 16:59:11 SAST 2026 [elapsed=3 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun May 3 16:59:11 SAST 2026 [elapsed=3 sec] auxcam is disabled.
Sun May 3 16:59:11 SAST 2026 [elapsed=3 sec] Skipping auxcam.
error: unknown module: vent
Sun May 3 16:59:11 SAST 2026 [elapsed=3 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777820341
OK
Sun May 3 16:59:11 SAST 2026 [elapsed=3 sec] OPSEC
AUTO mode: ...OK
Sun May 3 16:59:11 SAST 2026 [elapsed=3 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 May 3 16:59:12 SAST 2026 [elapsed=4 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 May 3 16:59:13 SAST 2026 [elapsed=5 sec] QUEUE
0 observations queued.
Sun May 3 16:59:13 SAST 2026 [elapsed=5 sec] CLOCKS
admin: Sun May 3 14:59:13 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 879 1024 377 1.026 0.222 0.616
+metbox2.sth.atl .PPS. 1 u 64 1024 377 0.321 0.182 0.238
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 735 1024 377 24.321 -0.188 0.294
+ntp.as3741.net 146.64.58.41 2 u 292 1024 377 22.884 0.117 0.578
-ntp2.as3741.net 155.232.19.7 2 u 188 1024 377 7.221 0.079 0.206
+ntp2.inx.net.za 210.182.58.253 2 u 607 1024 377 7.238 0.229 0.291
102.222.100.153 196.21.187.2 2 u 4d 1024 0 7.937 0.836 0.000
+ntp5.inx.net.za 183.3.52.101 2 u 260 1024 377 7.913 0.341 0.302
+flipping.cloudh 80.72.67.48 3 u 459 1024 377 8.167 0.371 0.239
102.216.37.99 ( 210.182.58.253 2 u 90d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 467 1024 377 22.749 -0.047 0.301
Sun May 3 16:59:15 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (6018GB)
200GB available in /atlas/red...OK (9290GB)
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/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 4.5T 8.9T 34% /
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 736G 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
Sun May 3 16:59:16 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 May 3 16:59:16 SAST 2026 [elapsed=8 sec] Disabling mount tracking.
Sun May 3 16:59:16 SAST 2026 [elapsed=8 sec] SERVICES2
Sun May 3 16:59:16 SAST 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun May 3 16:59:21 SAST 2026 [elapsed=13 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=1.29e+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 May 3 17:01:57 SAST 2026 [elapsed=169 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: 105.74 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Sun May 3 17:02:56 SAST 2026 [elapsed=228 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun May 3 17:03:17 SAST 2026 [elapsed=249 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
Sun May 3 17:03:17 SAST 2026 [elapsed=249 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 (-54.5C)
Checking CCD plane: Z0=+1735.00 DZDX=-892.00 DZDY=+2949.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun May 3 17:03:17 SAST 2026 [elapsed=249 sec] WEATHER
status weather: W 18.3C 40% 39/52kph@354 DP13.0C/-16C/d IDLE
...OK
Sun May 3 17:03:18 SAST 2026 [elapsed=250 sec] MET
status...OK
met: c=N o=Y Ro6d Co2d Wo6d Ho2d To36d Do1d IDLE
Sun May 3 17:03:18 SAST 2026 [elapsed=250 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun May 3 17:03:18 SAST 2026 [elapsed=250 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 134.67 -14.63, az/alt=59.90 +60.06 tracking(w) IDLE 0s
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 7 0.1%
A 0.051s 103 1.1%
A 0.081s 382 4.2%
A 0.111s 732 8.0%
A 0.141s 1173 12.8%
A 0.172s 1764 19.3%
A 0.202s 2442 26.7%
A 0.232s 3232 35.3%
A 0.262s 4134 45.2%
A 0.293s 5085 55.5%
A 0.323s 5962 65.1%
A 0.353s 6757 73.8%
A 0.383s 7419 81.0%
A 0.414s 7982 87.2%
A 0.444s 8454 92.4%
A 0.474s 8783 95.9%
A 0.505s 9013 98.5%
A 0.535s 9149 99.9%
B 0.020s 1 0.0%
B 0.050s 106 1.2%
B 0.081s 397 4.3%
B 0.111s 740 8.1%
B 0.141s 1215 13.3%
B 0.171s 1797 19.6%
B 0.202s 2489 27.2%
B 0.232s 3283 35.9%
B 0.262s 4197 45.8%
B 0.293s 5133 56.1%
B 0.323s 6020 65.8%
B 0.353s 6774 74.0%
B 0.383s 7435 81.2%
B 0.413s 8011 87.5%
B 0.444s 8454 92.4%
B 0.474s 8796 96.1%
B 0.504s 9028 98.6%
B 0.534s 9144 99.9%
B 0.565s 9159 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9057 98.9%
A 0.081s 8761 95.7%
A 0.111s 8402 91.8%
A 0.141s 7951 86.9%
A 0.172s 7352 80.3%
A 0.202s 6669 72.9%
A 0.232s 5895 64.4%
A 0.262s 4953 54.1%
A 0.293s 4017 43.9%
A 0.323s 3136 34.3%
A 0.353s 2354 25.7%
A 0.383s 1691 18.5%
A 0.414s 1131 12.4%
A 0.444s 698 7.6%
A 0.474s 355 3.9%
A 0.504s 128 1.4%
A 0.535s 12 0.1%
A 0.565s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9027 98.6%
B 0.081s 8761 95.7%
B 0.111s 8411 91.9%
B 0.141s 7939 86.7%
B 0.171s 7359 80.4%
B 0.202s 6671 72.9%
B 0.232s 5869 64.1%
B 0.262s 4954 54.1%
B 0.293s 4022 43.9%
B 0.323s 3137 34.3%
B 0.353s 2362 25.8%
B 0.383s 1714 18.7%
B 0.414s 1141 12.5%
B 0.444s 696 7.6%
B 0.474s 356 3.9%
B 0.504s 129 1.4%
B 0.535s 13 0.1%
B 0.565s -3 0.0%
A 1 0.0mm 15 N F R | B -3 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 99.9 percent in 0.535 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 0.565 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.15e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9236 IDLE
Sun May 3 17:04:16 SAST 2026 [elapsed=308 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
taking preflight exposures:
acam...OK
acam image:
125M May 3 17:04 /atlas/obs/03a/61164/03a61164e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun May 3 17:04:38 SAST 2026 [elapsed=330 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (51 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun May 3 17:04:38 SAST 2026 [elapsed=330 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61163.62822742|info|galildriver|using focus model: foc=9187+(4.30)*18.0+(-0.40)*60.2=9240.3
61163.62823267|info|galildriver|o 2 IN | cass: 3046020 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54006710 9237 um b=8f M [focus]
61163.62824328|info|galildriver|o 2 IN | cass: 3046018 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54006777 9237 um b=2f [cmd]
bestfocus for o...OK
Sun May 3 17:04:41 SAST 2026 [elapsed=333 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun May 3 17:05:10 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 May 3 17:05:11 SAST 2026 [elapsed=363 sec] NOTICES: det_dzdx=-892 is outside range +-250 from -558; det_dzdy=2949 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 May 3 17:05:11 SAST 2026 [elapsed=363 sec] Happy observing!
Sun May 3 17:05:11 SAST 2026 [elapsed=363 sec] Preflight took 363 seconds to complete.
Sun May 3 17:05:11 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 3 0.0% A 0.051s 108 1.2% A 0.081s 385 4.2% A 0.111s 736 8.0% A 0.141s 1181 12.9% A 0.172s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3238 35.4% A 0.262s 4175 45.6% A 0.293s 5074 55.4% A 0.323s 5968 65.2% A 0.353s 6754 73.8% A 0.383s 7413 81.0% A 0.413s 7989 87.3% A 0.444s 8445 92.3% A 0.474s 8783 95.9% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 104 1.1% B 0.081s 370 4.0% B 0.111s 715 7.8% B 0.141s 1184 12.9% B 0.171s 1753 19.2% B 0.202s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4136 45.2% B 0.292s 5073 55.4% B 0.323s 5959 65.1% B 0.353s 6749 73.7% B 0.383s 7421 81.1% B 0.413s 7985 87.2% B 0.443s 8443 92.2% B 0.474s 8786 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 9152 100.0% A 0.050s 9043 98.8% A 0.081s 8767 95.8% A 0.111s 8408 91.9% A 0.141s 7941 86.7% A 0.172s 7359 80.4% A 0.202s 6668 72.8% A 0.232s 5894 64.4% A 0.262s 4950 54.1% A 0.292s 4009 43.8% A 0.323s 3165 34.6% A 0.353s 2387 26.1% A 0.383s 1711 18.7% A 0.413s 1148 12.5% A 0.444s 693 7.6% A 0.474s 358 3.9% A 0.504s 126 1.4% A 0.534s 13 0.1% A 0.565s 1 0.0% B 0.020s 9143 99.9% B 0.050s 9017 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.171s 7378 80.6% B 0.202s 6687 73.1% B 0.232s 5890 64.3% B 0.262s 4979 54.4% B 0.292s 4054 44.3% B 0.323s 3163 34.6% B 0.353s 2392 26.1% B 0.383s 1703 18.6% B 0.413s 1147 12.5% B 0.444s 699 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 13 0.1% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R