STH Recent Preflight: 61331
Executing preflight for 61331 at Sat Oct 17 17:52:46 SAST 2026.
Log can be found in /atlas/obs/03/61331/preflight.dat.
Setting donefile '/atlas/obs/03/61331/preflight_complete.20261017155246.2653' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261017155246.2653.
Sat Oct 17 17:52:46 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Oct 17 17:52:46 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [65399422-a04b-469f-923f-dc760a38ce90;1800]
Sat Oct 17 17:52:46 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat Oct 17 17:52:47 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat Oct 17 17:52:47 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat Oct 17 17:52:47 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Oct 17 17:52:47 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1792252359
OK
Sat Oct 17 17:52:47 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Oct 17 17:52:47 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 Oct 17 17:52:48 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 Oct 17 17:52:49 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Oct 17 17:52:49 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sat Oct 17 15:52:49 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 42m 1024 234 0.958 0.120 0.807
-metbox2.sth.atl .PPS. 1 u 186 1024 377 0.361 0.102 0.063
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 155.232.19.7 2 u 606 1024 377 23.308 0.289 0.344
+ntp.as3741.net 228.188.15.147 2 u 1007 1024 377 22.892 0.224 0.882
+ntp2.as3741.net 129.134.28.123 2 u 466 1024 377 7.304 0.219 0.127
+ntp2.inx.net.za 210.182.58.253 2 u 833 1024 377 7.299 0.226 0.189
+ntp2.nog.net.za 80.72.67.48 3 u 1058 1024 377 7.386 0.266 0.140
+139.84.231.68 ( 196.21.187.2 2 u 968 1024 377 22.807 0.315 0.347
-ntp7.inx.net.za 196.21.187.2 2 u 548 1024 377 16.550 -0.265 0.395
*tick.sanren.ac. .TC. 1 u 579 1024 377 23.255 0.233 0.109
Sat Oct 17 17:53:01 SAST 2026 [elapsed=15 sec] DISKS
200GB available in /atlas/obs...OK (6100GB)
200GB available in /atlas/red...OK (9518GB)
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 44% /
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 9.1T 33% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.9T 12T 14% /
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
Sat Oct 17 17:53:01 SAST 2026 [elapsed=15 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 Oct 17 17:53:01 SAST 2026 [elapsed=15 sec] Disabling mount tracking.
Sat Oct 17 17:53:01 SAST 2026 [elapsed=15 sec] SERVICES2
Sat Oct 17 17:53:05 SAST 2026 [elapsed=19 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Oct 17 17:53:09 SAST 2026 [elapsed=23 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= 930kB time=00:00:29.76 bitrate= 256.0kbits/s speed=1.54e+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 Oct 17 17:55:38 SAST 2026 [elapsed=172 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: 283.78 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Sat Oct 17 17:56:29 SAST 2026 [elapsed=223 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Oct 17 17:56:48 SAST 2026 [elapsed=242 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Sat Oct 17 17:56:48 SAST 2026 [elapsed=242 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (10 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.2C)
Checking CCD plane: Z0=+1753.00 DZDX=-924.00 DZDY=+3379.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Oct 17 17:56:48 SAST 2026 [elapsed=242 sec] WEATHER
status weather: clear 16.5C 47% 22/32kph@302 DP11.0C/5C/d IDLE
...OK
Sat Oct 17 17:56:49 SAST 2026 [elapsed=243 sec] MET
status...OK
met: c=N o=Y Ro11d Co4d Wo2d Ho4d To23d Do9d IDLE
Sat Oct 17 17:56:49 SAST 2026 [elapsed=243 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Oct 17 17:56:51 SAST 2026 [elapsed=245 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 312.69 -14.63, az/alt=59.90 +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 -1 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 0.050s 101 1.1%
A 0.081s 392 4.3%
A 0.111s 734 8.0%
A 0.142s 1190 13.0%
A 0.172s 1782 19.5%
A 0.202s 2466 26.9%
A 0.233s 3261 35.6%
A 0.263s 4164 45.5%
A 0.293s 5115 55.9%
A 0.324s 5991 65.4%
A 0.354s 6779 74.1%
A 0.384s 7440 81.3%
A 0.415s 7999 87.4%
A 0.445s 8466 92.5%
A 0.475s 8791 96.0%
A 0.506s 9021 98.5%
A 0.536s 9154 100.0%
B 0.020s 1 0.0%
B 0.050s 98 1.1%
B 0.081s 383 4.2%
B 0.111s 724 7.9%
B 0.141s 1197 13.1%
B 0.171s 1777 19.4%
B 0.202s 2467 26.9%
B 0.232s 3258 35.6%
B 0.262s 4165 45.5%
B 0.292s 5100 55.7%
B 0.323s 5993 65.5%
B 0.353s 6776 74.0%
B 0.383s 7436 81.2%
B 0.413s 8010 87.5%
B 0.444s 8455 92.4%
B 0.474s 8798 96.1%
B 0.504s 9029 98.6%
B 0.534s 9143 99.9%
B 0.565s 9160 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9063 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 6692 73.1%
A 0.232s 5896 64.4%
A 0.262s 4983 54.4%
A 0.293s 4044 44.2%
A 0.323s 3165 34.6%
A 0.353s 2377 26.0%
A 0.383s 1710 18.7%
A 0.414s 1147 12.5%
A 0.444s 698 7.6%
A 0.474s 356 3.9%
A 0.504s 128 1.4%
A 0.534s 12 0.1%
A 0.565s -6 0.0%
B 0.020s 9146 99.9%
B 0.050s 9032 98.7%
B 0.081s 8772 95.8%
B 0.111s 8424 92.0%
B 0.141s 7958 86.9%
B 0.172s 7380 80.6%
B 0.202s 6692 73.1%
B 0.232s 5897 64.4%
B 0.262s 4984 54.4%
B 0.293s 4051 44.3%
B 0.323s 3163 34.6%
B 0.353s 2383 26.0%
B 0.384s 1711 18.7%
B 0.414s 1141 12.5%
B 0.444s 699 7.6%
B 0.475s 356 3.9%
B 0.505s 128 1.4%
B 0.535s 11 0.1%
B 0.565s -5 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 0.536 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 0.565 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.11e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9313 IDLE
Sat Oct 17 17:57:28 SAST 2026 [elapsed=282 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 17 17:57 /atlas/obs/03a/61331/03a61331e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Oct 17 17:57:51 SAST 2026 [elapsed=305 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (54 seconds old)
OTA humidity level...OK (2%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Oct 17 17:57:51 SAST 2026 [elapsed=305 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61330.66518031|info|galildriver|using focus model: foc=9187+(4.30)*18.9+(-0.40)*60.2=9244.2
61330.66518567|info|galildriver|o 2 IN | cass: 3036191 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54022061 9313 um b=8f M [focus]
61330.66519475|info|galildriver|o 2 IN | cass: 3036195 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54017112 9289 um b=8f M [focus]
61330.66520639|info|galildriver|o 2 IN | cass: 3036199 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54010390 9255 um b=8f M [focus]
61330.66521467|info|galildriver|o 2 IN | cass: 3036196 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54007823 9242 um b=8f M [focus]
61330.66521805|info|galildriver|o 2 IN | cass: 3036192 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54007820 9242 um b=8f M [focus]
61330.66522622|info|galildriver|o 2 IN | cass: 3036195 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54007821 9242 um b=0f [cmd]
bestfocus for o...OK
Sat Oct 17 17:57:56 SAST 2026 [elapsed=310 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Oct 17 17:58:22 SAST 2026 [elapsed=336 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 Oct 17 17:58:23 SAST 2026 [elapsed=337 sec] NOTICES: det_dzdx=-924 is outside range +-250 from -558; det_dzdy=3379 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 Oct 17 17:58:23 SAST 2026 [elapsed=337 sec] Happy observing!
Sat Oct 17 17:58:23 SAST 2026 [elapsed=337 sec] Preflight took 337 seconds to complete.
Sat Oct 17 17:58:23 SAST 2026 [elapsed=337 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 2 0.0% A 0.051s 106 1.2% A 0.081s 375 4.1% A 0.111s 724 7.9% A 0.141s 1180 12.9% A 0.172s 1762 19.2% A 0.202s 2442 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.293s 5073 55.4% A 0.323s 5970 65.2% A 0.353s 6752 73.8% A 0.383s 7414 81.0% A 0.413s 7986 87.2% A 0.444s 8446 92.3% A 0.474s 8785 96.0% A 0.504s 9020 98.5% A 0.534s 9137 99.8% A 0.565s 9155 100.0% B 0.020s 1 0.0% B 0.050s 104 1.1% B 0.081s 371 4.1% B 0.111s 713 7.8% B 0.141s 1185 12.9% B 0.171s 1751 19.1% B 0.201s 2443 26.7% B 0.231s 3243 35.4% B 0.262s 4107 44.9% B 0.292s 5044 55.1% B 0.322s 5933 64.8% B 0.352s 6725 73.5% B 0.382s 7400 80.8% B 0.413s 7967 87.0% B 0.443s 8432 92.1% B 0.474s 8776 95.9% B 0.504s 9013 98.5% B 0.534s 9135 99.8% B 0.564s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9051 98.9% A 0.081s 8779 95.9% A 0.111s 8421 92.0% A 0.141s 7957 86.9% A 0.171s 7381 80.6% A 0.202s 6691 73.1% A 0.232s 5895 64.4% A 0.262s 4981 54.4% A 0.292s 4037 44.1% A 0.323s 3168 34.6% A 0.353s 2387 26.1% A 0.383s 1712 18.7% A 0.413s 1145 12.5% A 0.444s 692 7.6% A 0.474s 358 3.9% A 0.504s 125 1.4% A 0.534s 14 0.2% A 0.564s 1 0.0% B 0.020s 9143 99.9% B 0.050s 9020 98.5% B 0.080s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.171s 7381 80.6% B 0.202s 6691 73.1% B 0.232s 5890 64.3% B 0.262s 4980 54.4% B 0.292s 4054 44.3% B 0.323s 3193 34.9% B 0.353s 2419 26.4% B 0.383s 1703 18.6% B 0.413s 1143 12.5% B 0.444s 712 7.8% B 0.474s 364 4.0% B 0.504s 137 1.5% B 0.534s 16 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R