STH Recent Preflight: 61254
Executing preflight for 61254 at Sat Aug 1 17:02:40 SAST 2026.
Log can be found in /atlas/obs/03/61254/preflight.dat.
Setting donefile '/atlas/obs/03/61254/preflight_complete.20260801150240.4595' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260801150240.4595.
Sat Aug 1 17:02:40 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Aug 1 17:02:40 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [f43316df-0462-44ad-9148-331663f4e677;1800]
Sat Aug 1 17:02:40 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 ON redLED
Sat Aug 1 17:02:41 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat Aug 1 17:02:41 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat Aug 1 17:02:41 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Aug 1 17:02:41 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1785596552
OK
Sat Aug 1 17:02:41 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Aug 1 17:02:41 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 Aug 1 17:02:45 SAST 2026 [elapsed=5 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 Aug 1 17:02:45 SAST 2026 [elapsed=5 sec] QUEUE
0 observations queued.
Sat Aug 1 17:02:46 SAST 2026 [elapsed=6 sec] CLOCKS
admin: Sat Aug 1 15:02:46 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 816 1024 53 0.977 -0.072 0.088
*metbox2.sth.atl .PPS. 1 u 795 1024 377 0.356 -0.135 0.026
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 210.182.58.253 2 u 292 1024 377 23.233 0.051 0.254
-ntp.as3741.net 146.64.58.41 2 u 893 1024 377 22.884 -0.234 0.600
-ntp2.as3741.net 129.134.28.123 2 u 626 1024 377 7.297 -0.584 0.029
-ntp2.inx.net.za 183.3.52.101 2 u 274 1024 377 7.320 -0.062 0.025
-ntp5.inx.net.za 196.21.187.2 2 u 166 1024 377 7.536 -0.034 0.091
#102.222.156.151 196.21.187.2 2 u 57 1024 367 23.226 -0.406 1.170
+ntp2.nog.net.za 80.72.67.48 3 u 917 1024 377 7.545 -0.050 0.023
-139.84.231.68 ( 196.21.187.2 2 u 978 1024 377 22.822 0.108 0.102
-ntp8.inx.net.za 210.182.58.253 2 u 998 1024 377 16.863 0.179 0.126
Sat Aug 1 17:02:57 SAST 2026 [elapsed=17 sec] DISKS
200GB available in /atlas/obs...OK (6034GB)
200GB available in /atlas/red...OK (8651GB)
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/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
tcs:/dev/mapper/ubuntu--vg-ubuntu--lv 98G 38G 56G 41% /
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 5.2T 8.3T 39% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.8T 12T 14% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 736G 13T 6% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17292
Sat Aug 1 17:02:57 SAST 2026 [elapsed=17 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 Aug 1 17:02:57 SAST 2026 [elapsed=17 sec] Disabling mount tracking.
Sat Aug 1 17:02:57 SAST 2026 [elapsed=17 sec] SERVICES2
Sat Aug 1 17:02:57 SAST 2026 [elapsed=17 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Aug 1 17:03:01 SAST 2026 [elapsed=21 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= 932kB time=00:00:29.82 bitrate= 256.0kbits/s speed=1.45e+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 Aug 1 17:06:17 SAST 2026 [elapsed=217 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: 195.67 -29.49, az/alt=324.74 +86.49 idle(e) IDLE
Sat Aug 1 17:07:47 SAST 2026 [elapsed=307 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Aug 1 17:08:06 SAST 2026 [elapsed=326 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Sat Aug 1 17:08:06 SAST 2026 [elapsed=326 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (0 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.4C)
Checking CCD plane: Z0=+1718.00 DZDX=-870.00 DZDY=+2613.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Aug 1 17:08:06 SAST 2026 [elapsed=326 sec] WEATHER
status weather: clear 14.2C 30% 15/16kph@49 DP14.7C/-99C/d IDLE
...OK
Sat Aug 1 17:08:07 SAST 2026 [elapsed=327 sec] MET
status...OK
met: c=N o=Y Ro2d Co2d Wo12d Ho1d To44d Do9d IDLE
Sat Aug 1 17:08:07 SAST 2026 [elapsed=327 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Aug 1 17:08:07 SAST 2026 [elapsed=327 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 224.59 -14.64, 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 7 0.1%
A 0.051s 101 1.1%
A 0.081s 391 4.3%
A 0.111s 733 8.0%
A 0.141s 1191 13.0%
A 0.172s 1782 19.5%
A 0.202s 2465 26.9%
A 0.232s 3260 35.6%
A 0.263s 4165 45.5%
A 0.293s 5114 55.9%
A 0.323s 5990 65.4%
A 0.353s 6757 73.8%
A 0.384s 7420 81.1%
A 0.414s 7983 87.2%
A 0.444s 8453 92.3%
A 0.474s 8783 95.9%
A 0.505s 9014 98.5%
A 0.535s 9150 100.0%
B 0.020s 2 0.0%
B 0.050s 104 1.1%
B 0.081s 394 4.3%
B 0.111s 739 8.1%
B 0.141s 1213 13.3%
B 0.171s 1797 19.6%
B 0.202s 2491 27.2%
B 0.232s 3284 35.9%
B 0.262s 4197 45.8%
B 0.293s 5132 56.1%
B 0.323s 6021 65.8%
B 0.353s 6799 74.3%
B 0.383s 7453 81.4%
B 0.414s 8027 87.7%
B 0.444s 8467 92.5%
B 0.475s 8807 96.2%
B 0.505s 9033 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.051s 9058 99.0%
A 0.081s 8761 95.7%
A 0.111s 8402 91.8%
A 0.141s 7952 86.9%
A 0.172s 7352 80.3%
A 0.202s 6668 72.8%
A 0.232s 5871 64.1%
A 0.262s 4952 54.1%
A 0.293s 4013 43.8%
A 0.323s 3140 34.3%
A 0.353s 2353 25.7%
A 0.384s 1689 18.5%
A 0.414s 1131 12.4%
A 0.444s 685 7.5%
A 0.474s 344 3.8%
A 0.505s 124 1.4%
A 0.535s 11 0.1%
A 0.565s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9039 98.7%
B 0.081s 8783 95.9%
B 0.111s 8437 92.2%
B 0.141s 7974 87.1%
B 0.172s 7400 80.8%
B 0.202s 6716 73.4%
B 0.232s 5924 64.7%
B 0.262s 5015 54.8%
B 0.293s 4079 44.6%
B 0.323s 3192 34.9%
B 0.353s 2406 26.3%
B 0.384s 1733 18.9%
B 0.414s 1157 12.6%
B 0.444s 709 7.7%
B 0.474s 366 4.0%
B 0.505s 133 1.5%
B 0.535s 15 0.2%
B 0.565s -5 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 0.535 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=1.03e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9235 IDLE
Sat Aug 1 17:08:44 SAST 2026 [elapsed=364 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:
123M Aug 1 17:09 /atlas/obs/03a/61254/03a61254e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Aug 1 17:09:07 SAST 2026 [elapsed=387 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (18 seconds old)
OTA humidity level...OK (17%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Aug 1 17:09:07 SAST 2026 [elapsed=387 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61253.63133819|info|galildriver|using focus model: foc=9187+(4.30)*17.0+(-0.40)*60.2=9236.0
61253.63134286|info|galildriver|o 2 IN | cass: 3041867 15.21 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006534 9236 um b=0f [cmd]
bestfocus for o...OK
Sat Aug 1 17:09:09 SAST 2026 [elapsed=389 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Aug 1 17:09:34 SAST 2026 [elapsed=414 sec] Disabling mount tracking.
Waiting on the mount ... done.
Turning tracking off ... done.
Waiting on the mount ... done.
Recheck mount status ... done.
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 OFF redLED
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 2 OFF whiteLED
Sat Aug 1 17:09:35 SAST 2026 [elapsed=415 sec] NOTICES: det_dzdx=-870 is outside range +-250 from -558; det_dzdy=2613 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 Aug 1 17:09:35 SAST 2026 [elapsed=415 sec] Happy observing!
Sat Aug 1 17:09:35 SAST 2026 [elapsed=415 sec] Preflight took 415 seconds to complete.
Sat Aug 1 17:09:35 SAST 2026 [elapsed=415 sec] STARTING CLEANUP
Turning off LEDs
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
doorpsw 3 OFF redLED
Your umask of 0022 prevents creating of group-writeable files, so
logging is disabled. Change your .bashrc umask to 0002.
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 114 1.2% A 0.081s 385 4.2% A 0.111s 735 8.0% A 0.141s 1198 13.1% A 0.171s 1783 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4175 45.6% A 0.292s 5104 55.8% A 0.322s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7433 81.2% A 0.413s 8005 87.4% A 0.444s 8458 92.4% A 0.474s 8792 96.0% A 0.504s 9028 98.6% A 0.534s 9138 99.8% A 0.565s 9154 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1772 19.4% B 0.202s 2466 26.9% B 0.232s 3268 35.7% B 0.262s 4169 45.5% B 0.293s 5103 55.7% B 0.323s 5987 65.4% B 0.353s 6770 74.0% B 0.383s 7440 81.3% B 0.414s 8002 87.4% B 0.444s 8455 92.4% B 0.474s 8795 96.1% B 0.504s 9022 98.6% B 0.534s 9138 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9049 98.9% A 0.081s 8778 95.9% A 0.111s 8422 92.0% A 0.141s 7958 86.9% A 0.172s 7380 80.6% A 0.202s 6692 73.1% A 0.232s 5894 64.4% A 0.263s 4982 54.4% A 0.293s 4039 44.1% A 0.323s 3166 34.6% A 0.353s 2387 26.1% A 0.384s 1710 18.7% A 0.414s 1147 12.5% A 0.444s 693 7.6% A 0.474s 358 3.9% A 0.504s 125 1.4% A 0.535s 13 0.1% A 0.565s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9019 98.5% B 0.081s 8772 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.171s 7379 80.6% B 0.202s 6688 73.1% B 0.232s 5892 64.4% B 0.262s 4981 54.4% B 0.292s 4055 44.3% B 0.323s 3163 34.6% B 0.353s 2392 26.1% B 0.383s 1703 18.6% B 0.413s 1148 12.5% B 0.444s 700 7.6% B 0.474s 357 3.9% B 0.504s 134 1.5% B 0.535s 15 0.2% B 0.565s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R