STH Recent Preflight: 61280
Executing preflight for 61280 at Thu Aug 27 17:19:27 SAST 2026.
Log can be found in /atlas/obs/03/61280/preflight.dat.
Setting donefile '/atlas/obs/03/61280/preflight_complete.20260827151927.30267' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260827151927.30267.
Thu Aug 27 17:19:28 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Aug 27 17:19:28 SAST 2026 [elapsed=1 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [e9fff24a-561f-4d2f-8b6e-2b9c5ec923bd;1800]
Thu Aug 27 17:19:28 SAST 2026 [elapsed=1 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu Aug 27 17:19:29 SAST 2026 [elapsed=2 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Aug 27 17:19:29 SAST 2026 [elapsed=2 sec] auxcam is disabled.
Thu Aug 27 17:19:29 SAST 2026 [elapsed=2 sec] Skipping auxcam.
error: unknown module: vent
Thu Aug 27 17:19:29 SAST 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1787843968
OK
Thu Aug 27 17:19:29 SAST 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Thu Aug 27 17:19:29 SAST 2026 [elapsed=2 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
Thu Aug 27 17:19:31 SAST 2026 [elapsed=4 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
Thu Aug 27 17:19:31 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Thu Aug 27 17:19:31 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Thu Aug 27 15:19:31 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 63 1024 341 0.981 0.265 0.093
*metbox2.sth.atl .PPS. 1 u 32 1024 377 0.270 0.258 0.067
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 196.21.187.2 2 u 755 1024 377 23.341 -0.816 0.881
-ntp.as3741.net 146.64.58.41 2 u 1060 1024 377 22.771 0.078 0.609
+ntp2.as3741.net 146.64.58.41 2 u 312 1024 377 7.311 0.425 0.174
-ntp2.inx.net.za 210.182.58.253 2 u 674 1024 377 7.259 0.475 0.080
-ntp5.inx.net.za 210.182.58.253 2 u 133 1024 377 7.653 0.275 0.338
#102.222.156.151 196.21.187.2 2 u 34 1024 377 24.618 0.994 0.324
+ntp2.nog.net.za 80.72.67.48 3 u 1020 1024 377 7.633 0.233 0.122
-139.84.231.68 ( 196.21.187.2 2 u 887 1024 377 22.846 0.409 0.821
-ntp8.inx.net.za 210.182.58.253 2 u 355 1024 377 16.852 0.446 0.129
Thu Aug 27 17:19:43 SAST 2026 [elapsed=15 sec] DISKS
200GB available in /atlas/obs...OK (4638GB)
200GB available in /atlas/red...OK (7454GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.8T 4.5T 57% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 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 6.3T 7.2T 47% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.7T 12T 13% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 737G 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/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17292
Thu Aug 27 17:19:43 SAST 2026 [elapsed=16 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
Thu Aug 27 17:19:43 SAST 2026 [elapsed=16 sec] Disabling mount tracking.
Thu Aug 27 17:19:43 SAST 2026 [elapsed=16 sec] SERVICES2
Thu Aug 27 17:19:43 SAST 2026 [elapsed=16 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Aug 27 17:19:47 SAST 2026 [elapsed=20 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= 914kB time=00:00:29.24 bitrate= 256.0kbits/s speed=1.51e+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/OPEN (0%) IDLE
Thu Aug 27 17:22:19 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: 225.16 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Thu Aug 27 17:23:10 SAST 2026 [elapsed=223 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Aug 27 17:23:30 SAST 2026 [elapsed=243 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.8 IDLE
Thu Aug 27 17:23:30 SAST 2026 [elapsed=243 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (5 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.1C)
Checking CCD plane: Z0=+1758.00 DZDX=-897.00 DZDY=+3511.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Aug 27 17:23:30 SAST 2026 [elapsed=243 sec] WEATHER
status weather: C 21.4C 19% 21/29kph@7 DP23.3C/-21C/d IDLE
...OK
Thu Aug 27 17:23:31 SAST 2026 [elapsed=244 sec] MET
status...OK
met: c=N o=Y Ro15d Co19h Wo16d Ho14d To70d Do35d IDLE
Thu Aug 27 17:23:31 SAST 2026 [elapsed=244 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Aug 27 17:23:33 SAST 2026 [elapsed=246 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 254.07 -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 117 1.3%
A 0.081s 403 4.4%
A 0.111s 746 8.1%
A 0.142s 1207 13.2%
A 0.172s 1806 19.7%
A 0.202s 2489 27.2%
A 0.233s 3286 35.9%
A 0.263s 4197 45.8%
A 0.293s 5145 56.2%
A 0.324s 6017 65.7%
A 0.354s 6826 74.6%
A 0.384s 7478 81.7%
A 0.415s 8033 87.8%
A 0.445s 8490 92.7%
A 0.475s 8810 96.2%
A 0.506s 9034 98.7%
A 0.536s 9154 100.0%
B 0.020s 0 0.0%
B 0.050s 91 1.0%
B 0.081s 374 4.1%
B 0.111s 713 7.8%
B 0.142s 1181 12.9%
B 0.172s 1757 19.2%
B 0.202s 2442 26.7%
B 0.232s 3232 35.3%
B 0.263s 4168 45.5%
B 0.293s 5102 55.7%
B 0.323s 5992 65.5%
B 0.354s 6776 74.0%
B 0.384s 7436 81.2%
B 0.414s 8009 87.5%
B 0.445s 8456 92.4%
B 0.475s 8795 96.1%
B 0.505s 9027 98.6%
B 0.536s 9143 99.9%
B 0.566s 9159 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9062 99.0%
A 0.081s 8770 95.8%
A 0.111s 8414 91.9%
A 0.141s 7969 87.1%
A 0.172s 7372 80.5%
A 0.202s 6692 73.1%
A 0.232s 5899 64.4%
A 0.263s 4983 54.4%
A 0.293s 4013 43.8%
A 0.323s 3164 34.6%
A 0.354s 2377 26.0%
A 0.384s 1710 18.7%
A 0.414s 1131 12.4%
A 0.444s 686 7.5%
A 0.475s 356 3.9%
A 0.505s 129 1.4%
A 0.535s 14 0.2%
A 0.566s -6 0.0%
B 0.020s 9145 99.9%
B 0.050s 9026 98.6%
B 0.081s 8761 95.7%
B 0.111s 8410 91.9%
B 0.141s 7938 86.7%
B 0.172s 7360 80.4%
B 0.202s 6669 72.9%
B 0.232s 5869 64.1%
B 0.263s 4955 54.1%
B 0.293s 4022 43.9%
B 0.323s 3135 34.2%
B 0.353s 2361 25.8%
B 0.384s 1691 18.5%
B 0.414s 1125 12.3%
B 0.444s 686 7.5%
B 0.475s 349 3.8%
B 0.505s 124 1.4%
B 0.535s 10 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 0.566 seconds.
Shutter A closed to 0.0 percent in 0.566 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= 985x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9320 IDLE
Thu Aug 27 17:24:10 SAST 2026 [elapsed=283 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.8 IDLE
taking preflight exposures:
acam...OK
acam image:
122M Aug 27 17:24 /atlas/obs/03a/61280/03a61280e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Aug 27 17:24:33 SAST 2026 [elapsed=306 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (13 seconds old)
OTA humidity level...OK (16%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Aug 27 17:24:33 SAST 2026 [elapsed=306 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61279.64205524|info|galildriver|using focus model: foc=9187+(4.30)*20.1+(-0.40)*60.2=9249.3
61279.64206059|info|galildriver|o 2 IN | cass: 3037586 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54021287 9310 um b=8f M [focus]
61279.64206967|info|galildriver|o 2 IN | cass: 3037586 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54015998 9283 um b=8f M [focus]
61279.64208131|info|galildriver|o 2 IN | cass: 3037588 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54009250 9249 um b=8f M [focus]
61279.64208702|info|galildriver|o 2 IN | cass: 3037589 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54008164 9244 um b=8f M [focus]
61279.64209238|info|galildriver|o 2 IN | cass: 3037582 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54008186 9244 um b=8f M [focus]
61279.64209857|info|galildriver|o 2 IN | cass: 3037585 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54008161 9244 um b=0f [cmd]
bestfocus for o...OK
Thu Aug 27 17:24:37 SAST 2026 [elapsed=310 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Aug 27 17:25:03 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
Thu Aug 27 17:25:04 SAST 2026 [elapsed=337 sec] NOTICES: det_dzdx=-897 is outside range +-250 from -558; det_dzdy=3511 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Thu Aug 27 17:25:04 SAST 2026 [elapsed=337 sec] Happy observing!
Thu Aug 27 17:25:04 SAST 2026 [elapsed=337 sec] Preflight took 337 seconds to complete.
Thu Aug 27 17:25:04 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 4 0.0% A 0.051s 121 1.3% A 0.081s 395 4.3% A 0.111s 748 8.2% A 0.141s 1197 13.1% A 0.171s 1782 19.5% A 0.202s 2465 26.9% A 0.232s 3267 35.7% A 0.262s 4174 45.6% A 0.292s 5103 55.7% A 0.323s 5998 65.5% A 0.353s 6774 74.0% A 0.383s 7434 81.2% A 0.413s 8005 87.4% A 0.444s 8457 92.4% A 0.474s 8793 96.1% A 0.504s 9027 98.6% A 0.534s 9138 99.8% A 0.564s 9154 100.0% B 0.020s 0 0.0% B 0.050s 112 1.2% B 0.081s 377 4.1% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1771 19.3% B 0.201s 2465 26.9% B 0.232s 3267 35.7% B 0.262s 4166 45.5% B 0.292s 5102 55.7% B 0.322s 5989 65.4% B 0.353s 6747 73.7% B 0.383s 7420 81.1% B 0.413s 7984 87.2% B 0.443s 8445 92.3% B 0.473s 8787 96.0% B 0.504s 9018 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9056 98.9% A 0.081s 8788 96.0% A 0.111s 8433 92.1% A 0.141s 7976 87.1% A 0.171s 7401 80.8% A 0.202s 6716 73.4% A 0.232s 5922 64.7% A 0.262s 5013 54.8% A 0.292s 4068 44.4% A 0.323s 3194 34.9% A 0.353s 2408 26.3% A 0.383s 1731 18.9% A 0.413s 1163 12.7% A 0.444s 705 7.7% A 0.474s 367 4.0% A 0.504s 131 1.4% A 0.534s 16 0.2% A 0.564s 2 0.0% B 0.020s 9141 99.9% B 0.050s 9011 98.4% B 0.081s 8761 95.7% B 0.111s 8407 91.8% B 0.141s 7934 86.7% B 0.171s 7356 80.4% B 0.202s 6688 73.1% B 0.232s 5865 64.1% B 0.262s 4979 54.4% B 0.292s 4053 44.3% B 0.322s 3160 34.5% B 0.353s 2394 26.2% B 0.383s 1704 18.6% B 0.413s 1146 12.5% B 0.444s 699 7.6% B 0.474s 355 3.9% B 0.504s 126 1.4% B 0.534s 13 0.1% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R