STH Recent Preflight: 61333
Executing preflight for 61333 at Mon Oct 19 17:54:26 SAST 2026.
Log can be found in /atlas/obs/03/61333/preflight.dat.
Setting donefile '/atlas/obs/03/61333/preflight_complete.20261019155426.2653' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261019155426.2653.
Mon Oct 19 17:54:27 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Oct 19 17:54:27 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [d5db3f08-3f35-460c-a52f-1554816b9e34;1800]
Mon Oct 19 17:54:27 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Oct 19 17:54:27 SAST 2026 [elapsed=0 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Oct 19 17:54:27 SAST 2026 [elapsed=0 sec] auxcam is disabled.
Mon Oct 19 17:54:27 SAST 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Mon Oct 19 17:54:27 SAST 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1792425262
OK
Mon Oct 19 17:54:27 SAST 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Mon Oct 19 17:54:27 SAST 2026 [elapsed=0 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 Oct 19 17:54:29 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
Mon Oct 19 17:54:29 SAST 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Mon Oct 19 17:54:29 SAST 2026 [elapsed=2 sec] CLOCKS
admin: Mon Oct 19 15:54:29 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 1099 1024 326 1.062 0.018 0.120
*metbox2.sth.atl .PPS. 1 u 989 1024 377 0.281 -0.008 0.065
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 155.232.19.7 2 u 350 1024 377 23.316 -0.277 0.590
+ntp.as3741.net 210.182.58.253 2 u 67 1024 377 22.777 0.088 3.603
+ntp2.as3741.net 146.64.58.41 2 u 243 1024 377 7.218 0.012 0.292
-ntp2.inx.net.za 183.3.52.101 2 u 559 1024 377 7.221 -0.026 0.086
+ntp2.nog.net.za 80.72.67.48 3 u 1021 1024 377 7.479 0.102 0.093
-139.84.231.68 ( 196.21.187.2 2 u 21 1024 377 23.045 -0.120 1.964
-ntp7.inx.net.za 102.176.229.251 2 u 565 1024 377 16.476 -0.406 0.110
-tick.sanren.ac. .TC. 1 u 241 1024 377 23.231 0.108 0.104
Mon Oct 19 17:54:32 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6209GB)
200GB available in /atlas/red...OK (9639GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.3T 6.0T 43% /
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 4.2T 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
Mon Oct 19 17:54:32 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
Mon Oct 19 17:54:32 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Mon Oct 19 17:54:32 SAST 2026 [elapsed=5 sec] SERVICES2
Mon Oct 19 17:54:32 SAST 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Oct 19 17:54:36 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= 918kB time=00:00:29.37 bitrate= 256.0kbits/s speed=1.43e+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 Oct 19 17:57:51 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: 286.30 -29.49, az/alt=324.74 +86.49 idle(e) IDLE
Mon Oct 19 17:58:42 SAST 2026 [elapsed=255 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Oct 19 17:59:02 SAST 2026 [elapsed=275 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Mon Oct 19 17:59:02 SAST 2026 [elapsed=275 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.7C)
Checking CCD plane: Z0=+1716.00 DZDX=-913.00 DZDY=+2505.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Oct 19 17:59:02 SAST 2026 [elapsed=275 sec] WEATHER
status weather: clear 10.4C 35% 15/19kph@279 DP14.0C/-7C/d IDLE
...OK
Mon Oct 19 17:59:03 SAST 2026 [elapsed=276 sec] MET
status...OK
met: c=N o=Y Ro13d Co8h Wo4d Ho9h To25d Do1d IDLE
Mon Oct 19 17:59:03 SAST 2026 [elapsed=276 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Oct 19 17:59:03 SAST 2026 [elapsed=276 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 315.22 -14.63, az/alt=59.90 +60.06 tracking(w) IDLE 0s
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 107 1.2%
A 0.081s 381 4.2%
A 0.111s 734 8.0%
A 0.141s 1173 12.8%
A 0.172s 1783 19.5%
A 0.202s 2443 26.7%
A 0.232s 3259 35.6%
A 0.263s 4164 45.5%
A 0.293s 5085 55.5%
A 0.323s 5991 65.4%
A 0.353s 6780 74.1%
A 0.384s 7438 81.3%
A 0.414s 8001 87.4%
A 0.444s 8466 92.5%
A 0.475s 8791 96.0%
A 0.505s 9021 98.5%
A 0.535s 9153 100.0%
B 0.020s 1 0.0%
B 0.050s 89 1.0%
B 0.081s 372 4.1%
B 0.111s 713 7.8%
B 0.141s 1179 12.9%
B 0.171s 1757 19.2%
B 0.202s 2440 26.7%
B 0.232s 3232 35.3%
B 0.262s 4137 45.2%
B 0.292s 5072 55.4%
B 0.323s 5965 65.2%
B 0.353s 6751 73.7%
B 0.383s 7413 81.0%
B 0.413s 7994 87.3%
B 0.444s 8444 92.2%
B 0.474s 8788 96.0%
B 0.504s 9024 98.6%
B 0.534s 9142 99.9%
B 0.565s 9161 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.050s 9058 99.0%
A 0.081s 8762 95.7%
A 0.111s 8402 91.8%
A 0.141s 7951 86.9%
A 0.172s 7352 80.3%
A 0.202s 6670 72.9%
A 0.232s 5869 64.1%
A 0.263s 4953 54.1%
A 0.293s 4015 43.9%
A 0.323s 3138 34.3%
A 0.353s 2352 25.7%
A 0.384s 1690 18.5%
A 0.414s 1130 12.3%
A 0.444s 685 7.5%
A 0.474s 346 3.8%
A 0.504s 123 1.3%
A 0.534s 13 0.1%
A 0.565s -6 0.0%
B 0.020s 9145 99.9%
B 0.050s 9026 98.6%
B 0.080s 8763 95.7%
B 0.111s 8424 92.0%
B 0.141s 7958 86.9%
B 0.171s 7380 80.6%
B 0.201s 6694 73.1%
B 0.231s 5897 64.4%
B 0.262s 4985 54.5%
B 0.292s 4051 44.3%
B 0.322s 3164 34.6%
B 0.352s 2383 26.0%
B 0.383s 1713 18.7%
B 0.413s 1139 12.4%
B 0.443s 696 7.6%
B 0.473s 355 3.9%
B 0.504s 127 1.4%
B 0.534s 12 0.1%
B 0.564s -5 0.0%
A 0 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 0.564 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=9234 IDLE
Mon Oct 19 17:59:42 SAST 2026 [elapsed=315 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
taking preflight exposures:
acam...OK
acam image:
127M Oct 19 17:59 /atlas/obs/03a/61333/03a61333e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Oct 19 18:00:05 SAST 2026 [elapsed=338 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (7 seconds old)
OTA humidity level...OK (2%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Oct 19 18:00:05 SAST 2026 [elapsed=338 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61332.66673105|info|galildriver|using focus model: foc=9187+(4.30)*15.5+(-0.40)*60.2=9229.6
61332.66673606|info|galildriver|o 2 IN | cass: 3038146 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54006340 9235 um b=8f M [focus]
61332.66674620|info|galildriver|o 2 IN | cass: 3038154 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54006342 9235 um b=0f [cmd]
bestfocus for o...OK
Mon Oct 19 18:00:07 SAST 2026 [elapsed=340 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Oct 19 18:00:33 SAST 2026 [elapsed=366 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 Oct 19 18:00:34 SAST 2026 [elapsed=367 sec] NOTICES: det_dzdx=-913 is outside range +-250 from -558; det_dzdy=2505 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 Oct 19 18:00:34 SAST 2026 [elapsed=367 sec] Happy observing!
Mon Oct 19 18:00:34 SAST 2026 [elapsed=367 sec] Preflight took 367 seconds to complete.
Mon Oct 19 18:00:34 SAST 2026 [elapsed=367 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 107 1.2% A 0.081s 375 4.1% A 0.111s 737 8.1% A 0.142s 1197 13.1% A 0.172s 1783 19.5% A 0.202s 2466 26.9% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.293s 5073 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.413s 7988 87.3% A 0.444s 8447 92.3% A 0.474s 8784 96.0% A 0.504s 9021 98.5% A 0.534s 9138 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 104 1.1% B 0.081s 370 4.0% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1752 19.1% B 0.201s 2444 26.7% B 0.232s 3239 35.4% B 0.262s 4106 44.9% B 0.292s 5074 55.4% B 0.322s 5934 64.8% B 0.352s 6725 73.5% B 0.383s 7400 80.8% B 0.413s 7969 87.1% B 0.443s 8431 92.1% B 0.473s 8777 95.9% B 0.504s 9013 98.5% B 0.534s 9135 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9050 98.9% A 0.081s 8780 95.9% A 0.111s 8423 92.0% A 0.141s 7960 87.0% A 0.171s 7384 80.7% A 0.202s 6693 73.1% A 0.232s 5897 64.4% A 0.262s 4985 54.5% A 0.292s 4039 44.1% A 0.322s 3168 34.6% A 0.353s 2387 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.443s 693 7.6% A 0.473s 368 4.0% A 0.504s 125 1.4% A 0.534s 16 0.2% A 0.564s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9025 98.6% B 0.080s 8780 95.9% B 0.111s 8434 92.1% B 0.141s 7967 87.0% B 0.171s 7398 80.8% B 0.201s 6714 73.3% B 0.232s 5921 64.7% B 0.262s 5010 54.7% B 0.292s 4081 44.6% B 0.322s 3190 34.8% B 0.353s 2419 26.4% B 0.383s 1725 18.8% B 0.413s 1159 12.7% B 0.443s 712 7.8% B 0.474s 364 4.0% B 0.504s 137 1.5% B 0.534s 15 0.2% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R