STH Recent Preflight: 61135
Executing preflight for 61135 at Sat Apr 4 17:31:13 SAST 2026.
Log can be found in /atlas/obs/03/61135/preflight.dat.
Setting donefile '/atlas/obs/03/61135/preflight_complete.20260404153113.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260404153113.15307.
Sat Apr 4 17:31:13 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Apr 4 17:31:13 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [2258634a-3c39-4c18-9c18-16bc463debea;1800]
Sat Apr 4 17:31:13 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat Apr 4 17:31:14 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat Apr 4 17:31:14 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat Apr 4 17:31:14 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Apr 4 17:31:14 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1775316673
OK
Sat Apr 4 17:31:14 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Apr 4 17:31:14 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 Apr 4 17:31:15 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
Sat Apr 4 17:31:16 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Apr 4 17:31:16 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sat Apr 4 15:31:16 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 752 1024 377 0.875 0.022 0.104
*metbox2.sth.atl .PPS. 1 u 482 1024 377 0.260 -0.014 0.040
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 229.179.94.34 2 u 3 1024 377 25.135 0.975 0.472
-ntp.as3741.net 146.64.8.7 2 u 787 1024 377 22.699 -0.086 0.513
-ntp2.as3741.net 155.232.19.6 2 u 315 1024 377 7.358 0.215 0.054
-ntp2.inx.net.za 196.21.187.2 2 u 57 1024 377 7.241 0.431 0.037
-102.222.100.153 155.232.19.6 2 u 182 1024 377 7.790 0.331 0.520
-ntp5.inx.net.za 183.3.52.101 2 u 293 1024 377 7.990 0.418 0.024
+flipping.cloudh 80.72.67.48 3 u 213 1024 377 8.158 -0.050 0.732
102.216.37.99 ( 210.182.58.253 2 u 61d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 500 1024 377 23.604 0.361 0.708
Sat Apr 4 17:31:26 SAST 2026 [elapsed=13 sec] DISKS
200GB available in /atlas/obs...OK (6314GB)
200GB available in /atlas/red...OK (8842GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.2T 6.1T 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 5.0T 8.5T 37% /
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
Sat Apr 4 17:31:26 SAST 2026 [elapsed=13 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 Apr 4 17:31:26 SAST 2026 [elapsed=13 sec] Disabling mount tracking.
Sat Apr 4 17:31:27 SAST 2026 [elapsed=14 sec] SERVICES2
Sat Apr 4 17:31:27 SAST 2026 [elapsed=14 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Apr 4 17:31:31 SAST 2026 [elapsed=18 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=1.46e+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
Sat Apr 4 17:34:53 SAST 2026 [elapsed=220 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: 85.41 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Sat Apr 4 17:35:51 SAST 2026 [elapsed=278 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Apr 4 17:36:12 SAST 2026 [elapsed=299 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Sat Apr 4 17:36:12 SAST 2026 [elapsed=299 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.4C)
Checking CCD plane: Z0=+1736.00 DZDX=-884.00 DZDY=+3006.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Apr 4 17:36:12 SAST 2026 [elapsed=299 sec] WEATHER
status weather: W 15.1C 63% 35/39kph@296 DP6.8C/19C/d IDLE
...OK
Sat Apr 4 17:36:13 SAST 2026 [elapsed=300 sec] MET
status...OK
met: c=N o=Y Ro9h Co4h Wo3d Ho5h To7d Do1d IDLE
Sat Apr 4 17:36:13 SAST 2026 [elapsed=300 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Apr 4 17:36:13 SAST 2026 [elapsed=300 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 114.33 -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 116 1.3%
A 0.081s 414 4.5%
A 0.111s 758 8.3%
A 0.141s 1224 13.4%
A 0.172s 1825 19.9%
A 0.202s 2512 27.4%
A 0.232s 3316 36.2%
A 0.263s 4225 46.2%
A 0.293s 5172 56.5%
A 0.323s 6046 66.0%
A 0.354s 6825 74.6%
A 0.384s 7477 81.7%
A 0.414s 8034 87.8%
A 0.444s 8490 92.7%
A 0.475s 8809 96.2%
A 0.505s 9033 98.7%
A 0.535s 9155 100.0%
B 0.020s 0 0.0%
B 0.051s 92 1.0%
B 0.081s 375 4.1%
B 0.111s 727 7.9%
B 0.142s 1198 13.1%
B 0.172s 1776 19.4%
B 0.202s 2465 26.9%
B 0.233s 3257 35.6%
B 0.263s 4168 45.5%
B 0.293s 5102 55.7%
B 0.323s 5991 65.4%
B 0.354s 6775 74.0%
B 0.384s 7437 81.2%
B 0.414s 8010 87.5%
B 0.445s 8456 92.4%
B 0.475s 8797 96.1%
B 0.505s 9029 98.6%
B 0.535s 9143 99.9%
B 0.566s 9161 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9063 99.0%
A 0.081s 8772 95.8%
A 0.111s 8414 91.9%
A 0.142s 7967 87.0%
A 0.172s 7373 80.5%
A 0.202s 6693 73.1%
A 0.233s 5897 64.4%
A 0.263s 4982 54.4%
A 0.293s 4045 44.2%
A 0.323s 3165 34.6%
A 0.354s 2376 26.0%
A 0.384s 1712 18.7%
A 0.414s 1147 12.5%
A 0.445s 684 7.5%
A 0.475s 346 3.8%
A 0.505s 123 1.3%
A 0.535s 12 0.1%
A 0.566s -7 0.0%
B 0.020s 9144 99.9%
B 0.050s 9027 98.6%
B 0.081s 8761 95.7%
B 0.111s 8411 91.9%
B 0.141s 7940 86.7%
B 0.172s 7358 80.4%
B 0.202s 6672 72.9%
B 0.232s 5870 64.1%
B 0.262s 4955 54.1%
B 0.293s 4021 43.9%
B 0.323s 3135 34.2%
B 0.353s 2361 25.8%
B 0.383s 1693 18.5%
B 0.413s 1124 12.3%
B 0.444s 698 7.6%
B 0.474s 345 3.8%
B 0.504s 122 1.3%
B 0.534s 11 0.1%
B 0.565s -5 0.0%
A 0 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 0.535 seconds.
Shutter B opened to 100.0 percent in 0.566 seconds.
Shutter A closed to 0.0 percent in 0.566 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=1.11e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9234 IDLE
Sat Apr 4 17:36:49 SAST 2026 [elapsed=336 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
126M Apr 4 17:37 /atlas/obs/03a/61135/03a61135e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Apr 4 17:37:12 SAST 2026 [elapsed=359 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (25 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Apr 4 17:37:12 SAST 2026 [elapsed=359 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61134.65083849|info|galildriver|using focus model: foc=9187+(4.30)*17.4+(-0.40)*60.2=9237.7
61134.65084373|info|galildriver|o 2 IN | cass: 3049350 15.25 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54006221 9234 um b=8f M [focus]
61134.65085433|info|galildriver|o 2 IN | cass: 3049351 15.25 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54006221 9234 um b=2f [cmd]
bestfocus for o...OK
Sat Apr 4 17:37:14 SAST 2026 [elapsed=361 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Apr 4 17:37:44 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
Sat Apr 4 17:37:45 SAST 2026 [elapsed=392 sec] NOTICES: det_dzdx=-884 is outside range +-250 from -558; det_dzdy=3006 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 Apr 4 17:37:45 SAST 2026 [elapsed=392 sec] Happy observing!
Sat Apr 4 17:37:45 SAST 2026 [elapsed=392 sec] Preflight took 392 seconds to complete.
Sat Apr 4 17:37:45 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 4 0.0% A 0.050s 122 1.3% A 0.081s 383 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1780 19.4% A 0.202s 2465 26.9% A 0.232s 3267 35.7% A 0.262s 4175 45.6% A 0.292s 5102 55.7% A 0.322s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7433 81.2% A 0.413s 8006 87.5% A 0.443s 8458 92.4% A 0.474s 8793 96.1% A 0.504s 9028 98.6% A 0.534s 9138 99.8% A 0.564s 9154 100.0% B 0.020s 2 0.0% B 0.050s 110 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1203 13.1% B 0.171s 1775 19.4% B 0.201s 2468 27.0% B 0.232s 3267 35.7% B 0.262s 4135 45.2% B 0.292s 5103 55.7% B 0.322s 5962 65.1% B 0.353s 6750 73.7% B 0.383s 7417 81.0% B 0.413s 7984 87.2% B 0.443s 8444 92.2% B 0.474s 8784 96.0% B 0.504s 9018 98.5% B 0.534s 9132 99.8% B 0.564s 9154 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9056 98.9% A 0.081s 8788 96.0% A 0.111s 8434 92.1% A 0.141s 7975 87.1% A 0.171s 7401 80.8% A 0.202s 6715 73.4% A 0.232s 5923 64.7% A 0.262s 5013 54.8% A 0.293s 4069 44.5% A 0.323s 3191 34.9% A 0.353s 2411 26.3% A 0.383s 1730 18.9% A 0.414s 1162 12.7% A 0.444s 706 7.7% A 0.474s 367 4.0% A 0.504s 131 1.4% A 0.535s 16 0.2% A 0.565s 2 0.0% B 0.020s 9150 100.0% B 0.050s 9027 98.6% B 0.081s 8779 95.9% B 0.111s 8435 92.1% B 0.141s 7967 87.0% B 0.171s 7400 80.8% B 0.201s 6712 73.3% B 0.232s 5923 64.7% B 0.262s 5043 55.1% B 0.292s 4083 44.6% B 0.322s 3219 35.2% B 0.352s 2439 26.6% B 0.383s 1745 19.1% B 0.413s 1178 12.9% B 0.443s 725 7.9% B 0.473s 374 4.1% B 0.503s 144 1.6% B 0.534s 17 0.2% B 0.564s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R