STH Recent Preflight: 61335
Executing preflight for 61335 at Wed Oct 21 17:56:00 SAST 2026.
Log can be found in /atlas/obs/03/61335/preflight.dat.
Setting donefile '/atlas/obs/03/61335/preflight_complete.20261021155600.2653' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261021155600.2653.
Wed Oct 21 17:56:00 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Oct 21 17:56:00 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [b3d6859f-a554-424a-9abd-3124927efff6;1800]
Wed Oct 21 17:56:00 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Oct 21 17:56:01 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Oct 21 17:56:01 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Oct 21 17:56:01 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Oct 21 17:56:01 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1792598156
OK
Wed Oct 21 17:56:01 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Oct 21 17:56:01 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
Wed Oct 21 17:56:02 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
Wed Oct 21 17:56:03 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Oct 21 17:56:03 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Wed Oct 21 15:56:03 UTC 2026
metbox: 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 1007 1024 377 1.036 0.010 0.052
+metbox2.sth.atl .PPS. 1 u 844 1024 377 0.321 -0.005 0.016
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 180 1024 377 23.338 -1.435 1.461
-196.4.160.4 210.182.58.253 2 u 150 1024 377 22.821 0.054 10.293
-ntp2.as3741.net 146.64.58.41 2 u 496 1024 377 7.250 0.116 0.047
-ntp2.inx.net.za 210.182.58.253 2 u 1079 1024 377 7.327 0.108 0.045
+ntp2.nog.net.za 80.72.67.48 3 u 356 1024 377 7.488 0.083 0.061
-139.84.231.68 196.21.187.2 2 u 871 1024 377 22.841 0.266 0.125
-ntp7.inx.net.za 196.21.187.2 2 u 226 1024 377 16.611 0.012 9.247
-tick.sanren.ac. .TC. 1 u 1001 1024 377 23.195 0.133 0.074
Wed Oct 21 17:56:05 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6323GB)
200GB available in /atlas/red...OK (9566GB)
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 41% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
admin:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/loop1 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 4.3T 9.2T 32% /
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 13% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 738G 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/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Wed Oct 21 17:56:05 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
Wed Oct 21 17:56:05 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Wed Oct 21 17:56:05 SAST 2026 [elapsed=5 sec] SERVICES2
Wed Oct 21 17:56:05 SAST 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Oct 21 17:56:09 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=1.46e+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
Wed Oct 21 17:59:26 SAST 2026 [elapsed=206 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: 288.67 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Wed Oct 21 18:00:16 SAST 2026 [elapsed=256 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Oct 21 18:00:35 SAST 2026 [elapsed=275 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Wed Oct 21 18:00:35 SAST 2026 [elapsed=275 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.6C)
Checking CCD plane: Z0=+1719.00 DZDX=-920.00 DZDY=+2608.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Oct 21 18:00:35 SAST 2026 [elapsed=275 sec] WEATHER
status weather: C W 10.1C 71% 36/46kph@317 DP2.6C/-88C/d IDLE
...OK
Wed Oct 21 18:00:36 SAST 2026 [elapsed=276 sec] MET
status...OK
met: c=N o=N Ro15d Co59 Ws0 Ho6h To27d Do12h wait W IDLE
Wed Oct 21 18:00:36 SAST 2026 [elapsed=276 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Oct 21 18:00:38 SAST 2026 [elapsed=278 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 317.58 -14.64, az/alt=59.91 +60.05 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 8 0.1%
A 0.051s 107 1.2%
A 0.081s 391 4.3%
A 0.111s 733 8.0%
A 0.142s 1189 13.0%
A 0.172s 1783 19.5%
A 0.203s 2467 26.9%
A 0.233s 3259 35.6%
A 0.263s 4164 45.5%
A 0.294s 5115 55.9%
A 0.324s 5990 65.4%
A 0.354s 6804 74.3%
A 0.385s 7458 81.5%
A 0.415s 8016 87.6%
A 0.445s 8479 92.6%
A 0.476s 8801 96.1%
A 0.506s 9027 98.6%
A 0.537s 9154 100.0%
B 0.020s 2 0.0%
B 0.050s 105 1.1%
B 0.081s 393 4.3%
B 0.111s 739 8.1%
B 0.141s 1216 13.3%
B 0.172s 1796 19.6%
B 0.202s 2490 27.2%
B 0.233s 3284 35.9%
B 0.263s 4196 45.8%
B 0.293s 5131 56.1%
B 0.324s 6020 65.8%
B 0.354s 6798 74.3%
B 0.384s 7455 81.4%
B 0.415s 8043 87.9%
B 0.445s 8479 92.6%
B 0.475s 8818 96.3%
B 0.506s 9038 98.7%
B 0.536s 9149 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9069 99.1%
A 0.081s 8783 95.9%
A 0.111s 8426 92.0%
A 0.141s 7986 87.2%
A 0.172s 7393 80.8%
A 0.202s 6717 73.4%
A 0.232s 5896 64.4%
A 0.263s 4983 54.4%
A 0.293s 4043 44.2%
A 0.323s 3165 34.6%
A 0.354s 2377 26.0%
A 0.384s 1710 18.7%
A 0.414s 1146 12.5%
A 0.445s 697 7.6%
A 0.475s 356 3.9%
A 0.506s 129 1.4%
A 0.536s 12 0.1%
A 0.566s -5 0.0%
B 0.020s 9144 99.9%
B 0.050s 9025 98.6%
B 0.081s 8763 95.7%
B 0.111s 8410 91.9%
B 0.141s 7942 86.8%
B 0.172s 7359 80.4%
B 0.202s 6670 72.9%
B 0.233s 5870 64.1%
B 0.263s 4954 54.1%
B 0.293s 4022 43.9%
B 0.324s 3136 34.3%
B 0.354s 2338 25.5%
B 0.384s 1691 18.5%
B 0.414s 1124 12.3%
B 0.445s 672 7.3%
B 0.475s 337 3.7%
B 0.505s 117 1.3%
B 0.536s 10 0.1%
B 0.566s -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 0.537 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.0 percent in 0.566 seconds.
Shutter B closed to 0.0 percent in 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed= 924x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9230 IDLE
Wed Oct 21 18:01:14 SAST 2026 [elapsed=314 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:
124M Oct 21 18:01 /atlas/obs/03a/61335/03a61335e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Oct 21 18:01:36 SAST 2026 [elapsed=336 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (9 seconds old)
OTA humidity level...OK (4%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Oct 21 18:01:36 SAST 2026 [elapsed=336 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61334.66778836|info|galildriver|using focus model: foc=9187+(4.30)*15.5+(-0.40)*60.2=9229.6
61334.66779303|info|galildriver|o 2 IN | cass: 3037822 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54005530 9231 um b=0f [cmd]
bestfocus for o...OK
Wed Oct 21 18:01:37 SAST 2026 [elapsed=337 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Oct 21 18:02:03 SAST 2026 [elapsed=363 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
Wed Oct 21 18:02:04 SAST 2026 [elapsed=364 sec] NOTICES: det_dzdx=-920 is outside range +-250 from -558; det_dzdy=2608 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Wed Oct 21 18:02:04 SAST 2026 [elapsed=364 sec] Happy observing!
Wed Oct 21 18:02:04 SAST 2026 [elapsed=364 sec] Preflight took 364 seconds to complete.
Wed Oct 21 18:02:04 SAST 2026 [elapsed=364 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 0.051s 113 1.2% A 0.081s 384 4.2% A 0.112s 749 8.2% A 0.142s 1213 13.3% A 0.172s 1803 19.7% A 0.202s 2466 26.9% A 0.233s 3266 35.7% A 0.263s 4175 45.6% A 0.293s 5103 55.7% A 0.323s 5997 65.5% A 0.353s 6776 74.0% A 0.384s 7433 81.2% A 0.414s 8004 87.4% A 0.444s 8459 92.4% A 0.475s 8793 96.1% A 0.505s 9027 98.6% A 0.535s 9139 99.8% A 0.565s 9154 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 378 4.1% B 0.111s 727 7.9% B 0.141s 1202 13.1% B 0.171s 1772 19.4% B 0.201s 2465 26.9% B 0.232s 3268 35.7% B 0.262s 4168 45.5% B 0.292s 5105 55.8% B 0.322s 5987 65.4% B 0.352s 6771 74.0% B 0.383s 7441 81.3% B 0.413s 7987 87.3% B 0.443s 8443 92.2% B 0.473s 8786 96.0% B 0.503s 9018 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9042 98.8% A 0.081s 8768 95.8% A 0.111s 8408 91.9% A 0.141s 7941 86.7% A 0.172s 7361 80.4% A 0.202s 6668 72.8% A 0.232s 5868 64.1% A 0.262s 4951 54.1% A 0.292s 4008 43.8% A 0.323s 3140 34.3% A 0.353s 2363 25.8% A 0.383s 1691 18.5% A 0.413s 1129 12.3% A 0.444s 680 7.4% A 0.474s 349 3.8% A 0.504s 119 1.3% A 0.534s 14 0.2% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9015 98.5% B 0.081s 8762 95.7% B 0.111s 8410 91.9% B 0.141s 7953 86.9% B 0.171s 7357 80.4% B 0.202s 6667 72.8% B 0.232s 5865 64.1% B 0.262s 4982 54.4% B 0.292s 4056 44.3% B 0.322s 3165 34.6% B 0.353s 2392 26.1% B 0.383s 1702 18.6% B 0.413s 1145 12.5% B 0.443s 700 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R