STH Recent Preflight: 61278
Executing preflight for 61278 at Tue Aug 25 17:18:09 SAST 2026.
Log can be found in /atlas/obs/03/61278/preflight.dat.
Setting donefile '/atlas/obs/03/61278/preflight_complete.20260825151809.30267' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260825151809.30267.
Tue Aug 25 17:18:09 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Aug 25 17:18:09 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [1703fda6-ddaf-4b11-82fc-5d2bec4bcf24;1800]
Tue Aug 25 17:18:09 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Aug 25 17:18:10 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Aug 25 17:18:10 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Aug 25 17:18:10 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Aug 25 17:18:10 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1787671088
OK
Tue Aug 25 17:18:10 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Aug 25 17:18:10 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
Tue Aug 25 17:18:31 SAST 2026 [elapsed=22 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
Tue Aug 25 17:18:32 SAST 2026 [elapsed=23 sec] QUEUE
0 observations queued.
Tue Aug 25 17:18:32 SAST 2026 [elapsed=23 sec] CLOCKS
admin: Tue Aug 25 15:18:32 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 433 1024 377 1.027 -0.005 0.046
*metbox2.sth.atl .PPS. 1 u 399 1024 377 0.286 -0.030 0.026
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
#zibbi.ngei.csir 210.182.58.253 2 u 705 1024 377 23.231 0.435 0.470
-ntp.as3741.net 146.64.58.41 2 u 87 1024 377 23.010 -0.184 0.303
-ntp2.as3741.net 146.64.58.41 2 u 930 1024 377 7.212 -0.068 0.056
-196.10.54.57 183.3.52.101 2 u 960 1024 377 7.290 -0.153 0.066
+196.10.54.58 102.176.229.251 2 u 499 1024 377 7.908 -0.034 0.057
-102.222.156.151 196.21.187.2 2 u 149 1024 377 24.604 0.110 0.194
+ntp2.nog.net.za 80.72.67.48 3 u 42 1024 377 7.581 0.001 0.050
-139.84.231.68 ( 196.21.187.2 2 u 11 1024 377 23.310 0.066 2.049
-196.49.100.58 210.182.58.253 2 u 392 1024 377 16.830 -0.226 0.284
Tue Aug 25 17:18:35 SAST 2026 [elapsed=26 sec] DISKS
200GB available in /atlas/obs...OK (4783GB)
200GB available in /atlas/red...OK (7252GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.7T 4.6T 56% /
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 6.5T 7.0T 49% /
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 14% /
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
Tue Aug 25 17:18:35 SAST 2026 [elapsed=26 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
Tue Aug 25 17:18:35 SAST 2026 [elapsed=26 sec] Disabling mount tracking.
Tue Aug 25 17:18:35 SAST 2026 [elapsed=26 sec] SERVICES2
Tue Aug 25 17:18:35 SAST 2026 [elapsed=26 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Aug 25 17:18:39 SAST 2026 [elapsed=30 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= 912kB time=00:00:29.18 bitrate= 256.0kbits/s speed=1.45e+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
Tue Aug 25 17:21:54 SAST 2026 [elapsed=225 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: 223.24 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Tue Aug 25 17:23:24 SAST 2026 [elapsed=315 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Aug 25 17:23:43 SAST 2026 [elapsed=334 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Tue Aug 25 17:23:43 SAST 2026 [elapsed=334 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 (-53.8C)
Checking CCD plane: Z0=+1765.00 DZDX=-876.00 DZDY=+3718.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Aug 25 17:23:43 SAST 2026 [elapsed=334 sec] WEATHER
status weather: clear 20.8C 13% 6/13kph@271 DP27.4C/-57C/d IDLE
...OK
Tue Aug 25 17:23:44 SAST 2026 [elapsed=335 sec] MET
status...OK
met: c=N o=Y Ro13d Co10d Wo14d Ho12d To68d Do33d IDLE
Tue Aug 25 17:23:44 SAST 2026 [elapsed=335 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Aug 25 17:23:44 SAST 2026 [elapsed=335 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 252.16 -14.64, 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 -1 -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 391 4.3%
A 0.111s 735 8.0%
A 0.142s 1190 13.0%
A 0.172s 1784 19.5%
A 0.202s 2466 26.9%
A 0.232s 3259 35.6%
A 0.263s 4165 45.5%
A 0.293s 5116 55.9%
A 0.323s 5989 65.4%
A 0.354s 6779 74.1%
A 0.384s 7441 81.3%
A 0.414s 8000 87.4%
A 0.444s 8466 92.5%
A 0.475s 8790 96.0%
A 0.505s 9019 98.5%
A 0.535s 9152 100.0%
B 0.020s 1 0.0%
B 0.050s 96 1.0%
B 0.081s 383 4.2%
B 0.111s 726 7.9%
B 0.141s 1198 13.1%
B 0.171s 1777 19.4%
B 0.202s 2467 26.9%
B 0.232s 3257 35.6%
B 0.262s 4168 45.5%
B 0.293s 5102 55.7%
B 0.323s 5992 65.5%
B 0.353s 6776 74.0%
B 0.383s 7435 81.2%
B 0.414s 8010 87.5%
B 0.444s 8456 92.4%
B 0.474s 8795 96.1%
B 0.505s 9028 98.6%
B 0.535s 9143 99.9%
B 0.565s 9157 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9063 99.0%
A 0.081s 8771 95.8%
A 0.111s 8415 91.9%
A 0.141s 7985 87.2%
A 0.171s 7392 80.8%
A 0.201s 6714 73.3%
A 0.232s 5927 64.7%
A 0.262s 5012 54.8%
A 0.292s 4070 44.5%
A 0.322s 3194 34.9%
A 0.352s 2400 26.2%
A 0.383s 1728 18.9%
A 0.413s 1166 12.7%
A 0.443s 712 7.8%
A 0.473s 364 4.0%
A 0.504s 137 1.5%
A 0.534s 17 0.2%
A 0.564s -7 0.0%
B 0.020s 9147 99.9%
B 0.050s 9038 98.7%
B 0.081s 8780 95.9%
B 0.111s 8436 92.2%
B 0.141s 7972 87.1%
B 0.172s 7401 80.8%
B 0.202s 6717 73.4%
B 0.232s 5923 64.7%
B 0.262s 5014 54.8%
B 0.292s 4078 44.5%
B 0.323s 3193 34.9%
B 0.353s 2406 26.3%
B 0.383s 1732 18.9%
B 0.413s 1158 12.7%
B 0.444s 710 7.8%
B 0.474s 366 4.0%
B 0.504s 135 1.5%
B 0.534s 15 0.2%
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 0.564 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=9226 IDLE
Tue Aug 25 17:24:21 SAST 2026 [elapsed=372 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:
124M Aug 25 17:24 /atlas/obs/03a/61278/03a61278e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Aug 25 17:24:44 SAST 2026 [elapsed=395 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (24 seconds old)
OTA humidity level...OK (11%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Aug 25 17:24:44 SAST 2026 [elapsed=395 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61277.64218396|info|galildriver|using focus model: foc=9187+(4.30)*21.4+(-0.40)*60.2=9254.9
61277.64218932|info|galildriver|o 2 IN | cass: 3037482 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004692 9227 um b=8f M [focus]
61277.64219504|info|galildriver|o 2 IN | cass: 3037482 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005080 9229 um b=8f M [focus]
61277.64219842|info|galildriver|o 2 IN | cass: 3037483 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005289 9230 um b=8f M [focus]
61277.64220659|info|galildriver|o 2 IN | cass: 3037482 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005558 9231 um b=0f [cmd]
bestfocus for o...OK
Tue Aug 25 17:24:47 SAST 2026 [elapsed=398 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Aug 25 17:25:13 SAST 2026 [elapsed=424 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
Tue Aug 25 17:25:14 SAST 2026 [elapsed=425 sec] NOTICES: det_dzdx=-876 is outside range +-250 from -558; det_dzdy=3718 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Tue Aug 25 17:25:14 SAST 2026 [elapsed=425 sec] Happy observing!
Tue Aug 25 17:25:14 SAST 2026 [elapsed=425 sec] Preflight took 425 seconds to complete.
Tue Aug 25 17:25:14 SAST 2026 [elapsed=425 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 0.050s 122 1.3% A 0.081s 396 4.3% A 0.111s 748 8.2% A 0.141s 1215 13.3% A 0.171s 1803 19.7% A 0.202s 2489 27.2% A 0.232s 3296 36.0% A 0.262s 4203 45.9% A 0.292s 5134 56.1% A 0.323s 6025 65.8% A 0.353s 6796 74.2% A 0.383s 7453 81.4% A 0.413s 8023 87.6% A 0.443s 8457 92.4% A 0.473s 8793 96.1% A 0.504s 9028 98.6% A 0.534s 9137 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.050s 114 1.2% B 0.081s 379 4.1% B 0.111s 729 8.0% B 0.141s 1202 13.1% B 0.171s 1773 19.4% B 0.202s 2468 27.0% B 0.232s 3266 35.7% B 0.262s 4165 45.5% B 0.292s 5104 55.8% B 0.322s 5989 65.4% B 0.353s 6771 74.0% B 0.383s 7439 81.3% B 0.413s 7984 87.2% B 0.443s 8444 92.2% B 0.473s 8786 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 0.050s 9058 99.0% A 0.081s 8788 96.0% A 0.111s 8433 92.1% A 0.141s 7975 87.1% A 0.171s 7401 80.8% A 0.201s 6715 73.4% A 0.232s 5922 64.7% A 0.262s 5012 54.8% A 0.292s 4068 44.4% A 0.322s 3220 35.2% A 0.352s 2432 26.6% A 0.383s 1752 19.1% A 0.413s 1180 12.9% A 0.443s 718 7.8% A 0.473s 376 4.1% A 0.504s 137 1.5% A 0.534s 17 0.2% A 0.564s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9013 98.5% B 0.081s 8773 95.8% B 0.111s 8422 92.0% B 0.141s 7951 86.9% B 0.171s 7380 80.6% B 0.201s 6690 73.1% B 0.232s 5893 64.4% B 0.262s 4983 54.4% B 0.292s 4052 44.3% B 0.322s 3165 34.6% B 0.352s 2393 26.1% B 0.383s 1703 18.6% B 0.413s 1163 12.7% B 0.443s 711 7.8% B 0.473s 365 4.0% B 0.503s 138 1.5% B 0.534s 15 0.2% B 0.564s -1 0.0% A 0 0.0mm 15 N F R | B -1 -0.0mm 15 N F R