STH Recent Preflight: 61160
Executing preflight for 61160 at Wed Apr 29 17:02:48 SAST 2026.
Log can be found in /atlas/obs/03/61160/preflight.dat.
Setting donefile '/atlas/obs/03/61160/preflight_complete.20260429150248.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260429150248.11042.
Wed Apr 29 17:02:48 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Apr 29 17:02:48 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [c9ff2496-806c-4f6d-92fb-b5ae5f085dc8;1800]
Wed Apr 29 17:02:48 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Apr 29 17:02:49 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Apr 29 17:02:49 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Apr 29 17:02:49 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Apr 29 17:02:50 SAST 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777474964
OK
Wed Apr 29 17:02:50 SAST 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Wed Apr 29 17:02:50 SAST 2026 [elapsed=2 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
Wed Apr 29 17:02:51 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
Wed Apr 29 17:02:52 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Wed Apr 29 17:02:52 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Wed Apr 29 15:02:52 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 69m 1024 370 0.998 -0.194 0.073
*metbox2.sth.atl .PPS. 1 u 459 1024 377 0.347 -0.353 0.115
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 196.21.187.2 2 u 514 1024 377 24.298 -0.355 0.298
-ntp.as3741.net 146.64.58.41 2 u 794 1024 377 22.809 -0.587 0.588
+ntp2.as3741.net 155.232.19.7 2 u 654 1024 377 7.247 -0.157 0.179
-ntp2.inx.net.za 183.3.52.101 2 u 959 1024 377 7.277 -0.205 0.062
-102.222.100.153 196.21.187.2 2 u 119m 1024 300 7.484 0.060 0.581
-ntp5.inx.net.za 183.3.52.101 2 u 328 1024 377 7.808 -0.156 0.067
+flipping.cloudh 80.72.67.48 3 u 494 1024 377 8.118 0.135 0.908
102.216.37.99 ( 210.182.58.253 2 u 86d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 102.176.229.251 2 u 440 1024 377 22.734 -0.475 0.361
Wed Apr 29 17:02:57 SAST 2026 [elapsed=9 sec] DISKS
200GB available in /atlas/obs...OK (6158GB)
200GB available in /atlas/red...OK (9259GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.4T 5.9T 43% /
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 4.6T 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
Wed Apr 29 17:02:58 SAST 2026 [elapsed=10 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
Wed Apr 29 17:02:58 SAST 2026 [elapsed=10 sec] Disabling mount tracking.
Wed Apr 29 17:02:58 SAST 2026 [elapsed=10 sec] SERVICES2
Wed Apr 29 17:02:58 SAST 2026 [elapsed=10 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Apr 29 17:03:02 SAST 2026 [elapsed=14 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= 922kB time=00:00:29.50 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
Wed Apr 29 17:06:19 SAST 2026 [elapsed=211 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: 102.90 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Wed Apr 29 17:07:19 SAST 2026 [elapsed=271 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Apr 29 17:07:40 SAST 2026 [elapsed=292 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.5 IDLE
Wed Apr 29 17:07:40 SAST 2026 [elapsed=292 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.2C)
Checking CCD plane: Z0=+1681.00 DZDX=-888.00 DZDY=+1742.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Apr 29 17:07:40 SAST 2026 [elapsed=292 sec] WEATHER
status weather: clear 10.3C 35% 18/21kph@118 DP13.7C/-53C/d IDLE
...OK
Wed Apr 29 17:07:41 SAST 2026 [elapsed=293 sec] MET
status...OK
met: c=N o=Y Ro2d Co11h Wo2d Ho10h To32d Do3d IDLE
Wed Apr 29 17:07:41 SAST 2026 [elapsed=293 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Apr 29 17:07:41 SAST 2026 [elapsed=293 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 131.82 -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 -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 114 1.2%
A 0.081s 389 4.2%
A 0.111s 744 8.1%
A 0.142s 1190 13.0%
A 0.172s 1804 19.7%
A 0.202s 2489 27.2%
A 0.232s 3285 35.9%
A 0.263s 4195 45.8%
A 0.293s 5143 56.2%
A 0.323s 6017 65.7%
A 0.354s 6805 74.3%
A 0.384s 7456 81.5%
A 0.414s 8019 87.6%
A 0.445s 8480 92.6%
A 0.475s 8800 96.1%
A 0.505s 9028 98.6%
A 0.536s 9155 100.0%
B 0.020s 2 0.0%
B 0.050s 104 1.1%
B 0.081s 391 4.3%
B 0.111s 740 8.1%
B 0.141s 1214 13.3%
B 0.171s 1796 19.6%
B 0.202s 2490 27.2%
B 0.232s 3283 35.9%
B 0.262s 4196 45.8%
B 0.293s 5132 56.1%
B 0.323s 5993 65.5%
B 0.353s 6774 74.0%
B 0.383s 7456 81.5%
B 0.414s 8026 87.7%
B 0.444s 8468 92.5%
B 0.474s 8809 96.2%
B 0.505s 9036 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8774 95.8%
A 0.111s 8416 91.9%
A 0.141s 7967 87.0%
A 0.172s 7374 80.6%
A 0.202s 6694 73.1%
A 0.232s 5895 64.4%
A 0.263s 4981 54.4%
A 0.293s 4047 44.2%
A 0.323s 3167 34.6%
A 0.354s 2375 25.9%
A 0.384s 1709 18.7%
A 0.414s 1146 12.5%
A 0.444s 697 7.6%
A 0.475s 355 3.9%
A 0.505s 129 1.4%
A 0.535s 10 0.1%
A 0.565s -7 0.0%
B 0.020s 9145 99.9%
B 0.051s 9028 98.6%
B 0.081s 8763 95.7%
B 0.111s 8413 91.9%
B 0.141s 7941 86.7%
B 0.172s 7360 80.4%
B 0.202s 6672 72.9%
B 0.232s 5869 64.1%
B 0.262s 4955 54.1%
B 0.293s 4021 43.9%
B 0.323s 3135 34.2%
B 0.353s 2360 25.8%
B 0.384s 1692 18.5%
B 0.414s 1124 12.3%
B 0.444s 684 7.5%
B 0.474s 346 3.8%
B 0.505s 123 1.3%
B 0.535s 10 0.1%
B 0.565s -6 0.0%
A 1 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 0.536 seconds.
Shutter B opened to 99.9 percent in 0.535 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=1.02e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9215 IDLE
Wed Apr 29 17:08:41 SAST 2026 [elapsed=353 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.5 IDLE
taking preflight exposures:
acam...OK
acam image:
126M Apr 29 17:08 /atlas/obs/03a/61160/03a61160e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Apr 29 17:09:03 SAST 2026 [elapsed=375 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (46 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Apr 29 17:09:03 SAST 2026 [elapsed=375 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61159.63129734|info|galildriver|using focus model: foc=9187+(4.30)*13.0+(-0.40)*60.2=9218.8
61159.63130272|info|galildriver|o 2 IN | cass: 3049394 15.25 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54002454 9215 um b=8f M [focus]
61159.63131351|info|galildriver|o 2 IN | cass: 3049394 15.25 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54002523 9216 um b=2f [cmd]
bestfocus for o...OK
Wed Apr 29 17:09:06 SAST 2026 [elapsed=378 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Apr 29 17:09:35 SAST 2026 [elapsed=407 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
Wed Apr 29 17:09:36 SAST 2026 [elapsed=408 sec] NOTICES: det_dzdx=-888 is outside range +-250 from -558; det_dzdy=1742 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Wed Apr 29 17:09:36 SAST 2026 [elapsed=408 sec] Happy observing!
Wed Apr 29 17:09:36 SAST 2026 [elapsed=408 sec] Preflight took 408 seconds to complete.
Wed Apr 29 17:09:36 SAST 2026 [elapsed=408 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 108 1.2% A 0.081s 375 4.1% A 0.111s 722 7.9% A 0.141s 1180 12.9% A 0.171s 1761 19.2% A 0.202s 2442 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5074 55.4% A 0.322s 5970 65.2% A 0.353s 6752 73.8% A 0.383s 7393 80.8% A 0.413s 7973 87.1% A 0.443s 8430 92.1% A 0.473s 8774 95.8% A 0.504s 9017 98.5% A 0.534s 9133 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.080s 379 4.1% B 0.111s 728 8.0% B 0.141s 1203 13.1% B 0.171s 1773 19.4% B 0.201s 2465 26.9% B 0.232s 3268 35.7% B 0.262s 4168 45.5% B 0.292s 5104 55.8% B 0.323s 5988 65.4% B 0.353s 6770 74.0% B 0.383s 7440 81.3% B 0.414s 8002 87.4% B 0.444s 8456 92.4% B 0.474s 8795 96.1% B 0.504s 9023 98.6% B 0.535s 9139 99.8% B 0.565s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.051s 9050 98.9% A 0.081s 8778 95.9% A 0.111s 8421 92.0% A 0.141s 7959 86.9% A 0.171s 7380 80.6% A 0.202s 6691 73.1% A 0.232s 5895 64.4% A 0.262s 4981 54.4% A 0.292s 4038 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1710 18.7% A 0.413s 1148 12.5% A 0.444s 694 7.6% A 0.474s 358 3.9% A 0.504s 125 1.4% A 0.534s 13 0.1% A 0.565s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9016 98.5% B 0.081s 8771 95.8% B 0.111s 8420 92.0% B 0.141s 7950 86.8% B 0.172s 7377 80.6% B 0.202s 6686 73.0% B 0.232s 5892 64.4% B 0.262s 4981 54.4% B 0.293s 4053 44.3% B 0.323s 3161 34.5% B 0.353s 2392 26.1% B 0.383s 1704 18.6% B 0.414s 1148 12.5% B 0.444s 699 7.6% B 0.474s 356 3.9% B 0.504s 131 1.4% B 0.535s 14 0.2% B 0.565s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R