STH Recent Preflight: 61123
Executing preflight for 61123 at Mon Mar 23 17:46:36 SAST 2026.
Log can be found in /atlas/obs/03/61123/preflight.dat.
Setting donefile '/atlas/obs/03/61123/preflight_complete.20260323154636.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260323154636.15307.
Mon Mar 23 17:46:36 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Mar 23 17:46:36 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [1c28f41a-6f31-4f3d-befd-ad6877f802ac;1800]
Mon Mar 23 17:46:36 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Mar 23 17:46:38 SAST 2026 [elapsed=2 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Mar 23 17:46:38 SAST 2026 [elapsed=2 sec] auxcam is disabled.
Mon Mar 23 17:46:38 SAST 2026 [elapsed=2 sec] Skipping auxcam.
error: unknown module: vent
Mon Mar 23 17:46:38 SAST 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1774280793
OK
Mon Mar 23 17:46:38 SAST 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Mon Mar 23 17:46:38 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
Mon Mar 23 17:46:39 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
Mon Mar 23 17:46:40 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Mon Mar 23 17:46:40 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Mon Mar 23 15:46:40 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 556 1024 377 0.977 0.091 0.041
+metbox2.sth.atl .PPS. 1 u 648 1024 377 0.299 0.125 0.093
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 633 1024 377 24.253 0.314 0.687
+ntp.as3741.net 146.64.8.7 2 u 568 1024 377 23.674 0.553 1.385
+ntp2.as3741.net 155.232.19.6 2 u 462 1024 377 7.347 0.042 0.191
-ntp2.inx.net.za 183.3.52.101 2 u 391 1024 377 7.257 0.166 0.050
-102.222.100.153 155.232.19.7 2 u 540 1024 377 7.566 -0.300 0.455
-ntp5.inx.net.za 183.3.52.101 2 u 859 1024 377 7.906 0.249 0.119
-flipping.cloudh 80.72.67.48 3 u 68 1024 377 8.160 0.196 0.155
102.216.37.99 ( 210.182.58.253 2 u 49d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 789 1024 377 22.880 -0.473 0.352
Mon Mar 23 17:46:51 SAST 2026 [elapsed=15 sec] DISKS
200GB available in /atlas/obs...OK (6168GB)
200GB available in /atlas/red...OK (9209GB)
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/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 4.6T 8.8T 35% /
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
Mon Mar 23 17:46:51 SAST 2026 [elapsed=15 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
Mon Mar 23 17:46:51 SAST 2026 [elapsed=15 sec] Disabling mount tracking.
Mon Mar 23 17:46:52 SAST 2026 [elapsed=16 sec] SERVICES2
Mon Mar 23 17:46:54 SAST 2026 [elapsed=18 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Mar 23 17:46:59 SAST 2026 [elapsed=23 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=1.44e+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
Mon Mar 23 17:49:34 SAST 2026 [elapsed=178 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: 77.26 -29.49, az/alt=324.69 +86.49 idle(e) IDLE
Mon Mar 23 17:50:31 SAST 2026 [elapsed=235 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Mar 23 17:50:52 SAST 2026 [elapsed=256 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
Mon Mar 23 17:50:52 SAST 2026 [elapsed=256 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (4 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.7C)
Checking CCD plane: Z0=+1764.00 DZDX=-896.00 DZDY=+3625.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Mar 23 17:50:52 SAST 2026 [elapsed=256 sec] WEATHER
status weather: C H 18.0C 82% 25/33kph@128 DP3.1C/-2C/d IDLE
...OK
Mon Mar 23 17:50:52 SAST 2026 [elapsed=256 sec] MET
status...OK
met: c=N o=N Rc5 Cx0 Wo3d Ho9h To83d Do35 wait RC IDLE
Mon Mar 23 17:50:52 SAST 2026 [elapsed=256 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Mar 23 17:50:52 SAST 2026 [elapsed=256 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 106.18 -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 -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 9 0.1%
A 0.051s 116 1.3%
A 0.081s 403 4.4%
A 0.111s 746 8.1%
A 0.142s 1208 13.2%
A 0.172s 1803 19.7%
A 0.202s 2489 27.2%
A 0.233s 3287 35.9%
A 0.263s 4195 45.8%
A 0.293s 5145 56.2%
A 0.323s 6017 65.7%
A 0.354s 6802 74.3%
A 0.384s 7459 81.5%
A 0.414s 8016 87.6%
A 0.444s 8477 92.6%
A 0.475s 8828 96.4%
A 0.505s 9027 98.6%
A 0.535s 9153 100.0%
B 0.020s 1 0.0%
B 0.050s 99 1.1%
B 0.081s 386 4.2%
B 0.111s 726 7.9%
B 0.141s 1197 13.1%
B 0.172s 1778 19.4%
B 0.202s 2464 26.9%
B 0.232s 3258 35.6%
B 0.262s 4168 45.5%
B 0.293s 5102 55.7%
B 0.323s 5990 65.4%
B 0.353s 6864 75.0%
B 0.383s 7435 81.2%
B 0.414s 8010 87.5%
B 0.444s 8455 92.4%
B 0.474s 8807 96.2%
B 0.505s 9029 98.6%
B 0.535s 9143 99.9%
B 0.565s 9160 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9056 98.9%
A 0.081s 8772 95.8%
A 0.111s 8415 91.9%
A 0.141s 7880 86.1%
A 0.171s 7373 80.5%
A 0.202s 6693 73.1%
A 0.232s 5896 64.4%
A 0.262s 4892 53.4%
A 0.292s 4043 44.2%
A 0.323s 3166 34.6%
A 0.353s 2377 26.0%
A 0.383s 1711 18.7%
A 0.414s 1147 12.5%
A 0.444s 698 7.6%
A 0.474s 357 3.9%
A 0.504s 128 1.4%
A 0.535s 13 0.1%
A 0.565s -6 0.0%
B 0.020s 9145 99.9%
B 0.050s 9028 98.6%
B 0.081s 8760 95.7%
B 0.111s 8398 91.7%
B 0.141s 7941 86.7%
B 0.172s 7358 80.4%
B 0.202s 6670 72.9%
B 0.232s 5869 64.1%
B 0.263s 4954 54.1%
B 0.293s 4020 43.9%
B 0.323s 3135 34.2%
B 0.354s 2362 25.8%
B 0.384s 1693 18.5%
B 0.414s 1125 12.3%
B 0.444s 684 7.5%
B 0.475s 347 3.8%
B 0.505s 122 1.3%
B 0.535s 12 0.1%
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 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= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.1e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9243 IDLE
Mon Mar 23 17:51:43 SAST 2026 [elapsed=307 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:
124M Mar 23 17:52 /atlas/obs/03a/61123/03a61123e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Mar 23 17:52:05 SAST 2026 [elapsed=329 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (18 seconds old)
OTA humidity level...OK (8%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Mar 23 17:52:05 SAST 2026 [elapsed=329 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61122.66118168|info|galildriver|using focus model: foc=9187+(4.30)*19.6+(-0.40)*60.2=9247.2
61122.66118693|info|galildriver|o 2 IN | cass: 3048210 15.24 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54008082 9244 um b=8f M [focus]
61122.66119753|info|galildriver|o 2 IN | cass: 3048207 15.24 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54008155 9244 um b=2f [cmd]
bestfocus for o...OK
Mon Mar 23 17:52:08 SAST 2026 [elapsed=332 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Mar 23 17:52:38 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
Mon Mar 23 17:52:39 SAST 2026 [elapsed=363 sec] NOTICES: det_dzdx=-896 is outside range +-250 from -558; det_dzdy=3625 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Mon Mar 23 17:52:39 SAST 2026 [elapsed=363 sec] Happy observing!
Mon Mar 23 17:52:39 SAST 2026 [elapsed=363 sec] Preflight took 363 seconds to complete.
Mon Mar 23 17:52:39 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 0.050s 116 1.3% A 0.081s 373 4.1% A 0.111s 718 7.8% A 0.141s 1182 12.9% A 0.171s 1759 19.2% A 0.202s 2441 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.292s 5077 55.5% A 0.322s 5963 65.1% A 0.353s 6756 73.8% A 0.383s 7412 81.0% A 0.413s 7991 87.3% A 0.444s 8446 92.3% A 0.474s 8779 95.9% A 0.504s 9023 98.6% A 0.534s 9137 99.8% A 0.565s 9152 100.0% B 0.020s -1 -0.0% B 0.050s 105 1.1% B 0.081s 378 4.1% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1753 19.2% B 0.202s 2441 26.7% B 0.232s 3240 35.4% B 0.262s 4135 45.2% B 0.292s 5074 55.4% B 0.322s 5959 65.1% B 0.352s 6749 73.7% B 0.383s 7418 81.0% B 0.413s 7986 87.2% B 0.443s 8431 92.1% B 0.473s 8778 95.9% B 0.503s 9012 98.4% B 0.534s 9133 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9155 100.0% A 0.050s 9050 98.9% A 0.081s 8783 95.9% A 0.111s 8430 92.1% A 0.141s 7965 87.0% A 0.171s 7385 80.7% A 0.202s 6694 73.1% A 0.232s 5903 64.5% A 0.262s 4982 54.4% A 0.293s 4045 44.2% A 0.323s 3172 34.7% A 0.353s 2381 26.0% A 0.383s 1714 18.7% A 0.414s 1146 12.5% A 0.444s 692 7.6% A 0.474s 360 3.9% A 0.504s 125 1.4% A 0.535s 15 0.2% A 0.565s 4 0.0% B 0.020s 9144 99.9% B 0.050s 9009 98.4% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.171s 7377 80.6% B 0.202s 6687 73.1% B 0.232s 5892 64.4% B 0.262s 4983 54.4% B 0.292s 4052 44.3% B 0.322s 3161 34.5% B 0.353s 2393 26.1% B 0.383s 1704 18.6% B 0.413s 1147 12.5% B 0.443s 700 7.6% B 0.474s 355 3.9% B 0.504s 133 1.5% B 0.534s 13 0.1% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R