STH Recent Preflight: 61147
Executing preflight for 61147 at Thu Apr 16 17:16:40 SAST 2026.
Log can be found in /atlas/obs/03/61147/preflight.dat.
Setting donefile '/atlas/obs/03/61147/preflight_complete.20260416151640.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260416151640.15307.
Thu Apr 16 17:16:40 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Apr 16 17:16:40 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [cae6380c-6b1d-4f43-ab72-f07030b02158;1800]
Thu Apr 16 17:16:40 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu Apr 16 17:16:41 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Apr 16 17:16:41 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu Apr 16 17:16:41 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Apr 16 17:16:41 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1776352596
OK
Thu Apr 16 17:16:41 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Apr 16 17:16:41 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
Thu Apr 16 17:16:43 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
Thu Apr 16 17:16:43 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Apr 16 17:16:43 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Thu Apr 16 15:16:43 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 1020 1024 377 0.965 0.017 0.107
+metbox2.sth.atl .PPS. 1 u 175 1024 377 0.292 -0.065 0.063
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 229.179.94.34 2 u 522 1024 377 24.051 -0.225 0.445
-ntp.as3741.net 146.64.8.7 2 u 310 1024 377 22.842 -0.071 0.086
-ntp2.as3741.net 155.232.19.6 2 u 66 1024 377 7.304 0.402 0.505
-ntp2.inx.net.za 183.3.52.101 2 u 500 1024 377 7.271 -0.022 0.101
-102.222.100.153 155.232.19.6 2 u 494 1024 377 7.862 -0.647 0.290
-ntp5.inx.net.za 183.3.52.101 2 u 261 1024 377 7.893 0.388 1.054
+flipping.cloudh 80.72.67.48 3 u 403 1024 377 8.126 0.488 0.403
102.216.37.99 ( 210.182.58.253 2 u 73d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 65 1024 377 23.524 0.050 0.723
Thu Apr 16 17:16:45 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6058GB)
200GB available in /atlas/red...OK (8746GB)
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/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 5.1T 8.4T 38% /
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 736G 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
Thu Apr 16 17:16:45 SAST 2026 [elapsed=5 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
Thu Apr 16 17:16:45 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Thu Apr 16 17:16:45 SAST 2026 [elapsed=5 sec] SERVICES2
Thu Apr 16 17:16:45 SAST 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Apr 16 17:16:50 SAST 2026 [elapsed=10 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=1.38e+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
Thu Apr 16 17:20:09 SAST 2026 [elapsed=209 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: 93.55 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Thu Apr 16 17:21:09 SAST 2026 [elapsed=269 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Apr 16 17:21:30 SAST 2026 [elapsed=290 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.3 IDLE
Thu Apr 16 17:21:30 SAST 2026 [elapsed=290 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (7 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.5C)
Checking CCD plane: Z0=+1735.00 DZDX=-889.00 DZDY=+2969.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Apr 16 17:21:30 SAST 2026 [elapsed=290 sec] WEATHER
status weather: C 17.0C 56% 8/11kph@356 DP7.5C/-46C/d IDLE
...OK
Thu Apr 16 17:21:30 SAST 2026 [elapsed=290 sec] MET
status...OK
met: c=N o=Y Ro5d Co10 Wo15d Ho7h To19d Do5d IDLE
Thu Apr 16 17:21:30 SAST 2026 [elapsed=290 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Apr 16 17:21:30 SAST 2026 [elapsed=290 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 122.48 -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 392 4.3%
A 0.111s 735 8.0%
A 0.142s 1190 13.0%
A 0.172s 1782 19.5%
A 0.202s 2466 26.9%
A 0.233s 3259 35.6%
A 0.263s 4164 45.5%
A 0.293s 5116 55.9%
A 0.324s 5989 65.4%
A 0.354s 6780 74.1%
A 0.384s 7439 81.3%
A 0.414s 7999 87.4%
A 0.445s 8466 92.5%
A 0.475s 8793 96.1%
A 0.505s 9020 98.5%
A 0.536s 9152 100.0%
B 0.020s 1 0.0%
B 0.050s 98 1.1%
B 0.081s 385 4.2%
B 0.111s 727 7.9%
B 0.141s 1198 13.1%
B 0.172s 1777 19.4%
B 0.202s 2464 26.9%
B 0.232s 3256 35.6%
B 0.263s 4168 45.5%
B 0.293s 5102 55.7%
B 0.323s 5989 65.4%
B 0.353s 6775 74.0%
B 0.384s 7434 81.2%
B 0.414s 8011 87.5%
B 0.444s 8455 92.4%
B 0.474s 8797 96.1%
B 0.505s 9028 98.6%
B 0.535s 9144 99.9%
B 0.565s 9160 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9064 99.0%
A 0.081s 8772 95.8%
A 0.111s 8414 91.9%
A 0.141s 7968 87.0%
A 0.172s 7372 80.5%
A 0.202s 6693 73.1%
A 0.232s 5896 64.4%
A 0.263s 4983 54.4%
A 0.293s 4044 44.2%
A 0.323s 3165 34.6%
A 0.353s 2379 26.0%
A 0.384s 1710 18.7%
A 0.414s 1147 12.5%
A 0.444s 687 7.5%
A 0.475s 345 3.8%
A 0.505s 122 1.3%
A 0.535s 11 0.1%
A 0.566s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9040 98.8%
B 0.081s 8781 95.9%
B 0.111s 8435 92.1%
B 0.141s 7972 87.1%
B 0.171s 7400 80.8%
B 0.202s 6718 73.4%
B 0.232s 5925 64.7%
B 0.262s 5015 54.8%
B 0.292s 4079 44.6%
B 0.323s 3193 34.9%
B 0.353s 2407 26.3%
B 0.383s 1734 18.9%
B 0.413s 1158 12.7%
B 0.444s 709 7.7%
B 0.474s 365 4.0%
B 0.504s 134 1.5%
B 0.535s 15 0.2%
B 0.565s -5 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 0.536 seconds.
Shutter B opened to 100.0 percent in 0.565 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= 974x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[1] foc=9235 IDLE
Thu Apr 16 17:22:26 SAST 2026 [elapsed=346 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.3 IDLE
taking preflight exposures:
acam...OK
acam image:
123M Apr 16 17:22 /atlas/obs/03a/61147/03a61147e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Apr 16 17:22:48 SAST 2026 [elapsed=368 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (61 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Apr 16 17:22:48 SAST 2026 [elapsed=368 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61146.64084735|info|galildriver|using focus model: foc=9187+(4.30)*17.7+(-0.40)*60.2=9239.0
61146.64085269|info|galildriver|c 1 IN | cass: 18759 0.09 mm b=23 move=NO | arm: 408768 475.87 mm b=03 move=OK | foc: 54006492 9236 um b=8f M [focus]
61146.64086329|info|galildriver|c 1 IN | cass: 18756 0.09 mm b=23 move=NO | arm: 408768 475.87 mm b=03 move=OK | foc: 54006562 9236 um b=2f [cmd]
bestfocus for c...OK
Thu Apr 16 17:22:50 SAST 2026 [elapsed=370 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Apr 16 17:23:20 SAST 2026 [elapsed=400 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
Thu Apr 16 17:23:21 SAST 2026 [elapsed=401 sec] NOTICES: det_dzdx=-889 is outside range +-250 from -558; det_dzdy=2969 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Thu Apr 16 17:23:21 SAST 2026 [elapsed=401 sec] Happy observing!
Thu Apr 16 17:23:21 SAST 2026 [elapsed=401 sec] Preflight took 401 seconds to complete.
Thu Apr 16 17:23:21 SAST 2026 [elapsed=401 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 114 1.2% A 0.081s 386 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1783 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.322s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7434 81.2% A 0.413s 7989 87.3% A 0.443s 8444 92.2% A 0.474s 8781 95.9% A 0.504s 9022 98.6% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 102 1.1% B 0.080s 371 4.1% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1754 19.2% B 0.201s 2444 26.7% B 0.231s 3239 35.4% B 0.262s 4137 45.2% B 0.292s 5072 55.4% B 0.322s 5962 65.1% B 0.352s 6748 73.7% B 0.383s 7418 81.0% B 0.413s 7985 87.2% B 0.443s 8443 92.2% B 0.474s 8785 96.0% B 0.504s 9017 98.5% B 0.534s 9136 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9044 98.8% A 0.081s 8767 95.8% A 0.111s 8407 91.8% A 0.141s 7957 86.9% A 0.171s 7379 80.6% A 0.202s 6692 73.1% A 0.232s 5893 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.322s 3165 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.443s 694 7.6% A 0.474s 358 3.9% A 0.504s 126 1.4% A 0.534s 14 0.2% A 0.565s 1 0.0% B 0.020s 9145 99.9% B 0.050s 9018 98.5% B 0.081s 8771 95.8% B 0.111s 8420 92.0% B 0.141s 7935 86.7% B 0.171s 7357 80.4% B 0.202s 6690 73.1% B 0.232s 5892 64.4% B 0.262s 4952 54.1% B 0.293s 4051 44.3% B 0.323s 3163 34.6% B 0.353s 2392 26.1% B 0.383s 1706 18.6% B 0.414s 1149 12.6% B 0.444s 700 7.6% B 0.474s 357 3.9% B 0.504s 133 1.5% B 0.534s 14 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R