STH Recent Preflight: 61321
Executing preflight for 61321 at Wed Oct 7 17:45:33 SAST 2026.
Log can be found in /atlas/obs/03/61321/preflight.dat.
Setting donefile '/atlas/obs/03/61321/preflight_complete.20261007154533.1280' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261007154533.1280.
Wed Oct 7 17:45:33 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Oct 7 17:45:33 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [c9c8d526-6433-42ee-85d0-6185d28e122c;1800]
Wed Oct 7 17:45:33 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Oct 7 17:45:34 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Oct 7 17:45:34 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Oct 7 17:45:34 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Oct 7 17:45:34 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1791387924
OK
Wed Oct 7 17:45:34 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Oct 7 17:45:34 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 7 17:45:35 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 7 17:45:36 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Oct 7 17:45:36 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Wed Oct 7 15:45:36 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 1005 1024 377 0.900 -0.090 0.762
+metbox2.sth.atl .PPS. 1 u 273 1024 377 0.333 -0.128 0.038
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 1011 1024 377 23.265 0.242 0.312
+ntp.as3741.net 146.64.58.41 2 u 289 1024 377 23.114 -0.165 0.220
-ntp2.as3741.net 155.232.19.6 2 u 401 1024 377 7.232 0.054 0.342
-ntp2.inx.net.za 183.3.52.101 2 u 707 1024 377 7.273 -0.150 0.047
-ntp2.nog.net.za 80.72.67.48 3 u 993 1024 377 7.329 -0.011 0.072
-139.84.231.68 ( 196.21.187.2 2 u 604 1024 377 22.859 -0.055 1.261
-ntp7.inx.net.za 183.3.52.101 2 u 606 1024 377 16.547 0.423 0.514
-tick.sanren.ac. .TC. 1 u 704 1024 377 23.265 -0.037 0.039
Wed Oct 7 17:45:38 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6278GB)
200GB available in /atlas/red...OK (9355GB)
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 42% /
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 4.5T 9.0T 34% /
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 7 17:45:38 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 7 17:45:39 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Wed Oct 7 17:45:39 SAST 2026 [elapsed=6 sec] SERVICES2
Wed Oct 7 17:45:39 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Oct 7 17:45:43 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= 918kB time=00:00:29.37 bitrate= 256.0kbits/s speed=1.56e+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 7 17:48:58 SAST 2026 [elapsed=205 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: 272.25 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Wed Oct 7 17:49:49 SAST 2026 [elapsed=256 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Oct 7 17:50:12 SAST 2026 [elapsed=279 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Wed Oct 7 17:50:12 SAST 2026 [elapsed=279 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=+1728.00 DZDX=-923.00 DZDY=+2796.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Oct 7 17:50:12 SAST 2026 [elapsed=279 sec] WEATHER
status weather: clear 16.4C 26% 11/20kph@14 DP19.1C/-24C/d IDLE
...OK
Wed Oct 7 17:50:12 SAST 2026 [elapsed=279 sec] MET
status...OK
met: c=N o=Y Ro1d Co9h Wo23h Ho8h To13d Do1d IDLE
Wed Oct 7 17:50:12 SAST 2026 [elapsed=279 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Oct 7 17:50:14 SAST 2026 [elapsed=281 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 301.17 -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 108 1.2%
A 0.081s 402 4.4%
A 0.111s 747 8.2%
A 0.141s 1207 13.2%
A 0.172s 1805 19.7%
A 0.202s 2489 27.2%
A 0.232s 3287 35.9%
A 0.262s 4163 45.5%
A 0.293s 5115 55.9%
A 0.323s 5990 65.4%
A 0.353s 6779 74.1%
A 0.384s 7440 81.3%
A 0.414s 8000 87.4%
A 0.444s 8477 92.6%
A 0.475s 8800 96.1%
A 0.505s 9026 98.6%
A 0.535s 9154 100.0%
B 0.020s 1 0.0%
B 0.050s 95 1.0%
B 0.081s 384 4.2%
B 0.111s 727 7.9%
B 0.141s 1197 13.1%
B 0.172s 1778 19.4%
B 0.202s 2465 26.9%
B 0.232s 3285 35.9%
B 0.263s 4167 45.5%
B 0.293s 5100 55.7%
B 0.323s 5993 65.5%
B 0.354s 6798 74.3%
B 0.384s 7457 81.5%
B 0.414s 8010 87.5%
B 0.444s 8454 92.4%
B 0.475s 8807 96.2%
B 0.505s 9028 98.6%
B 0.535s 9143 99.9%
B 0.565s 9159 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.050s 9058 99.0%
A 0.081s 8761 95.7%
A 0.111s 8400 91.8%
A 0.141s 7951 86.9%
A 0.172s 7352 80.3%
A 0.202s 6668 72.8%
A 0.232s 5869 64.1%
A 0.263s 4952 54.1%
A 0.293s 4015 43.9%
A 0.323s 3138 34.3%
A 0.353s 2351 25.7%
A 0.384s 1691 18.5%
A 0.414s 1131 12.4%
A 0.444s 686 7.5%
A 0.474s 346 3.8%
A 0.505s 123 1.3%
A 0.535s 11 0.1%
A 0.565s -5 0.0%
B 0.020s 9146 99.9%
B 0.051s 9032 98.7%
B 0.081s 8771 95.8%
B 0.111s 8423 92.0%
B 0.142s 7973 87.1%
B 0.172s 7379 80.6%
B 0.202s 6694 73.1%
B 0.232s 5898 64.4%
B 0.263s 4985 54.5%
B 0.293s 4049 44.2%
B 0.323s 3165 34.6%
B 0.354s 2384 26.0%
B 0.384s 1713 18.7%
B 0.414s 1141 12.5%
B 0.444s 697 7.6%
B 0.475s 356 3.9%
B 0.505s 128 1.4%
B 0.535s 12 0.1%
B 0.566s -4 0.0%
A 0 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 0.535 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 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.17e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9236 IDLE
Wed Oct 7 17:50:52 SAST 2026 [elapsed=319 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:
127M Oct 7 17:51 /atlas/obs/03a/61321/03a61321e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Oct 7 17:51:15 SAST 2026 [elapsed=342 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (18 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Oct 7 17:51:15 SAST 2026 [elapsed=342 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61320.66059468|info|galildriver|using focus model: foc=9187+(4.30)*17.1+(-0.40)*60.2=9236.4
61320.66059935|info|galildriver|o 2 IN | cass: 3037678 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54006684 9237 um b=0f [cmd]
bestfocus for o...OK
Wed Oct 7 17:51:16 SAST 2026 [elapsed=343 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Oct 7 17:51:42 SAST 2026 [elapsed=369 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 7 17:51:44 SAST 2026 [elapsed=371 sec] NOTICES: det_dzdx=-923 is outside range +-250 from -558; det_dzdy=2796 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 7 17:51:44 SAST 2026 [elapsed=371 sec] Happy observing!
Wed Oct 7 17:51:44 SAST 2026 [elapsed=371 sec] Preflight took 371 seconds to complete.
Wed Oct 7 17:51:44 SAST 2026 [elapsed=371 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 384 4.2% A 0.111s 737 8.1% A 0.142s 1197 13.1% A 0.172s 1782 19.5% A 0.203s 2465 26.9% A 0.233s 3267 35.7% A 0.263s 4174 45.6% A 0.293s 5103 55.7% A 0.324s 5998 65.5% A 0.354s 6774 74.0% A 0.384s 7434 81.2% A 0.415s 8003 87.4% A 0.445s 8459 92.4% A 0.476s 8794 96.1% A 0.506s 9032 98.7% A 0.536s 9141 99.9% A 0.567s 9154 100.0% B 0.020s 1 0.0% B 0.050s 104 1.1% B 0.081s 379 4.1% B 0.111s 727 7.9% B 0.142s 1201 13.1% B 0.172s 1773 19.4% B 0.202s 2469 27.0% B 0.233s 3268 35.7% B 0.263s 4166 45.5% B 0.294s 5103 55.7% B 0.324s 5989 65.4% B 0.354s 6772 74.0% B 0.385s 7459 81.5% B 0.415s 8016 87.6% B 0.446s 8469 92.5% B 0.476s 8804 96.2% B 0.506s 9028 98.6% B 0.536s 9142 99.9% B 0.567s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9049 98.9% A 0.081s 8778 95.9% A 0.112s 8421 92.0% A 0.142s 7941 86.7% A 0.173s 7360 80.4% A 0.203s 6668 72.8% A 0.234s 5867 64.1% A 0.264s 4951 54.1% A 0.295s 4007 43.8% A 0.325s 3114 34.0% A 0.355s 2340 25.6% A 0.386s 1672 18.3% A 0.416s 1112 12.1% A 0.446s 668 7.3% A 0.477s 340 3.7% A 0.507s 114 1.2% A 0.538s 10 0.1% A 0.568s 1 0.0% B 0.020s 9142 99.9% B 0.051s 9011 98.4% B 0.081s 8762 95.7% B 0.111s 8407 91.8% B 0.142s 7936 86.7% B 0.172s 7359 80.4% B 0.202s 6667 72.8% B 0.233s 5837 63.8% B 0.263s 4919 53.7% B 0.294s 3994 43.6% B 0.324s 3110 34.0% B 0.355s 2350 25.7% B 0.385s 1660 18.1% B 0.416s 1098 12.0% B 0.446s 661 7.2% B 0.477s 329 3.6% B 0.507s 112 1.2% B 0.538s 7 0.1% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R