STH Recent Preflight: 61149
Executing preflight for 61149 at Sat Apr 18 17:14:24 SAST 2026.
Log can be found in /atlas/obs/03/61149/preflight.dat.
Setting donefile '/atlas/obs/03/61149/preflight_complete.20260418151424.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260418151424.11042.
Sat Apr 18 17:14:24 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Apr 18 17:14:24 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [eeaa36b6-52be-4040-8784-1a10ca0ae1da;1800]
Sat Apr 18 17:14:24 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat Apr 18 17:14:24 SAST 2026 [elapsed=0 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat Apr 18 17:14:25 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat Apr 18 17:14:25 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Apr 18 17:14:25 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1776525259
OK
Sat Apr 18 17:14:25 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Apr 18 17:14:25 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 18 17:14:26 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 18 17:14:26 SAST 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Sat Apr 18 17:14:26 SAST 2026 [elapsed=2 sec] CLOCKS
admin: Sat Apr 18 15:14:26 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 660 1024 177 0.997 -0.080 0.101
*metbox2.sth.atl .PPS. 1 u 433 1024 377 0.285 -0.156 0.112
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 412 1024 377 24.080 0.779 0.350
+ntp.as3741.net 146.64.58.41 2 u 901 1024 377 22.793 -0.151 0.353
-ntp2.as3741.net 155.232.19.7 2 u 561 1024 377 7.174 0.223 0.219
-ntp2.inx.net.za 183.3.52.101 2 u 154 1024 377 7.340 0.219 0.188
-102.222.100.153 155.232.19.6 2 u 170 1024 377 7.848 -0.197 0.886
-ntp5.inx.net.za 183.3.52.101 2 u 451 1024 377 7.883 0.265 0.131
-flipping.cloudh 80.72.67.48 3 u 1041 1024 377 8.090 0.096 0.165
102.216.37.99 ( 210.182.58.253 2 u 75d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 566 1024 377 23.461 -0.247 0.479
Sat Apr 18 17:14:28 SAST 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (6174GB)
200GB available in /atlas/red...OK (8822GB)
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 90G 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 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
Sat Apr 18 17:14:28 SAST 2026 [elapsed=4 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 18 17:14:28 SAST 2026 [elapsed=4 sec] Disabling mount tracking.
Sat Apr 18 17:14:28 SAST 2026 [elapsed=4 sec] SERVICES2
Sat Apr 18 17:14:28 SAST 2026 [elapsed=4 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Apr 18 17:14:33 SAST 2026 [elapsed=9 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= 920kB time=00:00:29.44 bitrate= 256.0kbits/s speed=1.52e+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 18 17:17:48 SAST 2026 [elapsed=204 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: 94.93 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Sat Apr 18 17:18:48 SAST 2026 [elapsed=264 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Apr 18 17:19:09 SAST 2026 [elapsed=285 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.3 IDLE
Sat Apr 18 17:19:09 SAST 2026 [elapsed=285 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (6 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.3C)
Checking CCD plane: Z0=+1672.00 DZDX=-885.00 DZDY=+1550.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Apr 18 17:19:09 SAST 2026 [elapsed=285 sec] WEATHER
status weather: clear 7.4C 67% 25/38kph@327 DP6.2C/17C/d IDLE
...OK
Sat Apr 18 17:19:10 SAST 2026 [elapsed=286 sec] MET
status...OK
met: c=N o=Y Ro14h Co58 Wo15h Ho5h To21d Do1d IDLE
Sat Apr 18 17:19:10 SAST 2026 [elapsed=286 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Apr 18 17:19:10 SAST 2026 [elapsed=286 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 123.86 -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 -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 8 0.1%
A 0.051s 101 1.1%
A 0.081s 378 4.1%
A 0.111s 721 7.9%
A 0.141s 1172 12.8%
A 0.172s 1761 19.2%
A 0.202s 2466 26.9%
A 0.232s 3231 35.3%
A 0.263s 4163 45.5%
A 0.293s 5115 55.9%
A 0.323s 5990 65.4%
A 0.354s 6779 74.1%
A 0.384s 7438 81.3%
A 0.414s 8002 87.4%
A 0.445s 8465 92.5%
A 0.475s 8793 96.1%
A 0.505s 9023 98.6%
A 0.535s 9152 100.0%
B 0.020s 2 0.0%
B 0.051s 106 1.2%
B 0.081s 389 4.2%
B 0.111s 752 8.2%
B 0.142s 1230 13.4%
B 0.172s 1795 19.6%
B 0.202s 2513 27.5%
B 0.232s 3312 36.2%
B 0.263s 4229 46.2%
B 0.293s 5162 56.4%
B 0.323s 6047 66.1%
B 0.354s 6796 74.2%
B 0.384s 7476 81.7%
B 0.414s 8044 87.9%
B 0.445s 8480 92.6%
B 0.475s 8817 96.3%
B 0.505s 9041 98.8%
B 0.536s 9150 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9070 99.1%
A 0.081s 8785 96.0%
A 0.111s 8428 92.1%
A 0.141s 7985 87.2%
A 0.172s 7395 80.8%
A 0.202s 6717 73.4%
A 0.232s 5923 64.7%
A 0.262s 5013 54.8%
A 0.293s 4075 44.5%
A 0.323s 3193 34.9%
A 0.353s 2401 26.2%
A 0.384s 1728 18.9%
A 0.414s 1161 12.7%
A 0.444s 711 7.8%
A 0.474s 365 4.0%
A 0.505s 133 1.5%
A 0.535s 14 0.2%
A 0.565s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9036 98.7%
B 0.081s 8785 96.0%
B 0.111s 8425 92.0%
B 0.141s 7976 87.1%
B 0.171s 7400 80.8%
B 0.202s 6718 73.4%
B 0.232s 5924 64.7%
B 0.262s 5016 54.8%
B 0.293s 4078 44.5%
B 0.323s 3192 34.9%
B 0.353s 2406 26.3%
B 0.383s 1733 18.9%
B 0.414s 1156 12.6%
B 0.444s 708 7.7%
B 0.474s 364 4.0%
B 0.504s 132 1.4%
B 0.535s 13 0.1%
B 0.565s -7 0.0%
A 0 0.0mm 15 N F R | B -6 -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 0.536 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=1.12e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[1] foc=9213 IDLE
Sat Apr 18 17:19:46 SAST 2026 [elapsed=322 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 18 17:20 /atlas/obs/03a/61149/03a61149e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Apr 18 17:20:09 SAST 2026 [elapsed=345 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (82 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Apr 18 17:20:09 SAST 2026 [elapsed=345 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61148.63900077|info|galildriver|using focus model: foc=9187+(4.30)*11.6+(-0.40)*60.2=9212.8
61148.63900567|info|galildriver|c 1 IN | cass: 22383 0.11 mm b=23 move=NO | arm: 408768 475.87 mm b=03 move=OK | foc: 54002074 9213 um b=2f [cmd]
bestfocus for c...OK
Sat Apr 18 17:20:11 SAST 2026 [elapsed=347 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Apr 18 17:20:40 SAST 2026 [elapsed=376 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 18 17:20:42 SAST 2026 [elapsed=377 sec] NOTICES: det_dzdx=-885 is outside range +-250 from -558; det_dzdy=1550 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 18 17:20:42 SAST 2026 [elapsed=378 sec] Happy observing!
Sat Apr 18 17:20:42 SAST 2026 [elapsed=378 sec] Preflight took 378 seconds to complete.
Sat Apr 18 17:20:42 SAST 2026 [elapsed=378 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