STH Recent Preflight: 61124
Executing preflight for 61124 at Tue Mar 24 17:45:18 SAST 2026.
Log can be found in /atlas/obs/03/61124/preflight.dat.
Setting donefile '/atlas/obs/03/61124/preflight_complete.20260324154518.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260324154518.15307.
Tue Mar 24 17:45:18 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Mar 24 17:45:18 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [7e898956-b458-4b6b-9f17-2871b319429e;1800]
Tue Mar 24 17:45:18 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Mar 24 17:45:19 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Mar 24 17:45:19 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Mar 24 17:45:19 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Mar 24 17:45:19 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1774367109
OK
Tue Mar 24 17:45:19 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Mar 24 17:45:19 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
Tue Mar 24 17:45:20 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
Tue Mar 24 17:45:21 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Mar 24 17:45:21 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Mar 24 15:45:21 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 272 1024 17 1.005 0.054 0.037
*metbox2.sth.atl .PPS. 1 u 375 1024 377 0.320 -0.015 0.074
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 417 1024 377 25.074 0.700 0.327
-ntp.as3741.net 146.64.8.7 2 u 319 1024 377 22.758 -0.015 0.314
-ntp2.as3741.net 155.232.19.6 2 u 18 1024 377 7.266 0.332 0.109
-ntp2.inx.net.za 210.182.58.253 2 u 321 1024 377 7.253 0.456 0.221
-102.222.100.153 196.21.187.2 2 u 474 1024 377 7.727 0.179 0.635
-ntp5.inx.net.za 183.3.52.101 2 u 435 1024 377 7.834 0.411 0.108
+flipping.cloudh 80.72.67.48 3 u 690 1024 377 8.047 0.094 0.103
102.216.37.99 ( 210.182.58.253 2 u 50d 1024 0 73.586 -0.040 0.000
-139.84.231.151 183.3.52.101 2 u 334 1024 377 23.534 0.509 0.385
Tue Mar 24 17:45:25 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (6245GB)
200GB available in /atlas/red...OK (9306GB)
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 4.5T 8.9T 34% /
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
Tue Mar 24 17:45:25 SAST 2026 [elapsed=7 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
Tue Mar 24 17:45:25 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Tue Mar 24 17:45:25 SAST 2026 [elapsed=7 sec] SERVICES2
Tue Mar 24 17:45:25 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Mar 24 17:45:30 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= 916kB time=00:00:29.31 bitrate= 256.0kbits/s speed=1.51e+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
Tue Mar 24 17:48:45 SAST 2026 [elapsed=207 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: 78.05 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Tue Mar 24 17:49:44 SAST 2026 [elapsed=266 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Mar 24 17:50:05 SAST 2026 [elapsed=287 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
Tue Mar 24 17:50:05 SAST 2026 [elapsed=287 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (1 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.5C)
Checking CCD plane: Z0=+1781.00 DZDX=-900.00 DZDY=+4016.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Mar 24 17:50:05 SAST 2026 [elapsed=287 sec] WEATHER
status weather: C W 23.9C 53% 30/35kph@38 DP9.5C/-23C/d IDLE
...OK
Tue Mar 24 17:50:05 SAST 2026 [elapsed=287 sec] MET
status...OK
met: c=N o=N Ro20h Cs0 Wo4d Ho9h To84d Do1d wait C IDLE
Tue Mar 24 17:50:05 SAST 2026 [elapsed=287 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Mar 24 17:50:07 SAST 2026 [elapsed=289 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 106.97 -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 -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 8 0.1%
A 0.051s 110 1.2%
A 0.081s 393 4.3%
A 0.111s 797 8.7%
A 0.142s 1190 13.0%
A 0.172s 1784 19.5%
A 0.202s 2442 26.7%
A 0.232s 3370 36.8%
A 0.263s 4164 45.5%
A 0.293s 5085 55.5%
A 0.323s 5990 65.4%
A 0.353s 6779 74.1%
A 0.384s 7439 81.3%
A 0.414s 7999 87.4%
A 0.444s 8465 92.5%
A 0.474s 8791 96.0%
A 0.505s 9019 98.5%
A 0.535s 9151 100.0%
B 0.020s 1 0.0%
B 0.050s 92 1.0%
B 0.081s 377 4.1%
B 0.111s 714 7.8%
B 0.141s 1181 12.9%
B 0.171s 1758 19.2%
B 0.202s 2441 26.7%
B 0.232s 3232 35.3%
B 0.262s 4137 45.2%
B 0.292s 5073 55.4%
B 0.323s 5963 65.1%
B 0.353s 6752 73.8%
B 0.383s 7414 81.0%
B 0.414s 7994 87.3%
B 0.444s 8442 92.2%
B 0.474s 8788 96.0%
B 0.504s 9021 98.5%
B 0.535s 9140 99.8%
B 0.565s 9159 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9067 99.0%
A 0.081s 8782 95.9%
A 0.111s 8426 92.0%
A 0.141s 7984 87.2%
A 0.172s 7392 80.8%
A 0.202s 6716 73.4%
A 0.232s 5925 64.7%
A 0.263s 5013 54.8%
A 0.293s 4073 44.5%
A 0.323s 3193 34.9%
A 0.353s 2399 26.2%
A 0.384s 1730 18.9%
A 0.414s 1165 12.7%
A 0.444s 712 7.8%
A 0.474s 366 4.0%
A 0.505s 135 1.5%
A 0.535s 15 0.2%
A 0.565s -6 0.0%
B 0.020s 9149 99.9%
B 0.050s 9058 99.0%
B 0.081s 8808 96.2%
B 0.111s 8473 92.6%
B 0.141s 8023 87.6%
B 0.172s 7459 81.5%
B 0.202s 6787 74.1%
B 0.232s 6034 65.9%
B 0.262s 5106 55.8%
B 0.293s 4168 45.5%
B 0.323s 3275 35.8%
B 0.353s 2477 27.1%
B 0.384s 1797 19.6%
B 0.414s 1208 13.2%
B 0.444s 748 8.2%
B 0.475s 367 4.0%
B 0.505s 152 1.7%
B 0.535s 24 0.3%
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 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=1.13e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9256 IDLE
Tue Mar 24 17:50:48 SAST 2026 [elapsed=330 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:
123M Mar 24 17:51 /atlas/obs/03a/61124/03a61124e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Mar 24 17:51:11 SAST 2026 [elapsed=353 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (54 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Mar 24 17:51:11 SAST 2026 [elapsed=353 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61123.66055226|info|galildriver|using focus model: foc=9187+(4.30)*22.7+(-0.40)*60.2=9260.5
61123.66055751|info|galildriver|o 2 IN | cass: 3045498 15.23 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54010732 9257 um b=8f M [focus]
61123.66056811|info|galildriver|o 2 IN | cass: 3045499 15.23 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54010803 9257 um b=2f [cmd]
bestfocus for o...OK
Tue Mar 24 17:51:14 SAST 2026 [elapsed=356 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Mar 24 17:51:43 SAST 2026 [elapsed=385 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
Tue Mar 24 17:51:44 SAST 2026 [elapsed=386 sec] NOTICES: det_dzdx=-900 is outside range +-250 from -558; det_dzdy=4016 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Tue Mar 24 17:51:44 SAST 2026 [elapsed=386 sec] Happy observing!
Tue Mar 24 17:51:44 SAST 2026 [elapsed=386 sec] Preflight took 386 seconds to complete.
Tue Mar 24 17:51:44 SAST 2026 [elapsed=386 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 115 1.3% A 0.081s 381 4.2% A 0.111s 731 8.0% A 0.141s 1197 13.1% A 0.171s 1782 19.5% A 0.202s 2467 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5107 55.8% A 0.323s 5990 65.4% A 0.353s 6781 74.1% A 0.383s 7431 81.2% A 0.413s 8008 87.5% A 0.444s 8458 92.4% A 0.474s 8786 96.0% A 0.504s 9029 98.6% A 0.534s 9139 99.8% A 0.564s 9153 100.0% B 0.020s 0 0.0% B 0.050s 110 1.2% B 0.081s 379 4.1% B 0.111s 726 7.9% B 0.141s 1202 13.1% B 0.171s 1771 19.3% B 0.202s 2466 26.9% B 0.232s 3266 35.7% B 0.262s 4168 45.5% B 0.292s 5103 55.7% B 0.323s 5987 65.4% B 0.353s 6772 74.0% B 0.383s 7418 81.0% B 0.414s 8002 87.4% B 0.444s 8457 92.4% B 0.474s 8795 96.1% B 0.504s 9023 98.6% B 0.535s 9138 99.8% B 0.565s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9047 98.8% A 0.081s 8778 95.9% A 0.111s 8423 92.0% A 0.141s 7962 87.0% A 0.171s 7381 80.6% A 0.202s 6688 73.1% A 0.232s 5899 64.4% A 0.262s 5011 54.7% A 0.292s 4068 44.4% A 0.322s 3196 34.9% A 0.353s 2405 26.3% A 0.383s 1734 18.9% A 0.413s 1161 12.7% A 0.443s 706 7.7% A 0.473s 368 4.0% A 0.504s 130 1.4% A 0.534s 17 0.2% A 0.564s 3 0.0% B 0.020s 9143 99.9% B 0.050s 9011 98.4% B 0.081s 8762 95.7% B 0.111s 8408 91.9% B 0.141s 7934 86.7% B 0.172s 7355 80.3% B 0.202s 6664 72.8% B 0.232s 5864 64.1% B 0.262s 4952 54.1% B 0.293s 4023 43.9% B 0.323s 3136 34.3% B 0.353s 2367 25.9% B 0.383s 1684 18.4% B 0.414s 1134 12.4% B 0.444s 688 7.5% B 0.474s 349 3.8% B 0.504s 127 1.4% B 0.535s 12 0.1% B 0.565s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R