STH Recent Preflight: 61293
Executing preflight for 61293 at Wed Sep 9 17:27:31 SAST 2026.
Log can be found in /atlas/obs/03/61293/preflight.dat.
Setting donefile '/atlas/obs/03/61293/preflight_complete.20260909152731.4726' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260909152731.4726.
Wed Sep 9 17:27:31 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Sep 9 17:27:32 SAST 2026 [elapsed=1 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [1124cb83-4219-40de-a9e9-2d8eca126d5a;1800]
Wed Sep 9 17:27:32 SAST 2026 [elapsed=1 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Sep 9 17:27:33 SAST 2026 [elapsed=2 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Sep 9 17:27:33 SAST 2026 [elapsed=2 sec] auxcam is disabled.
Wed Sep 9 17:27:33 SAST 2026 [elapsed=2 sec] Skipping auxcam.
error: unknown module: vent
Wed Sep 9 17:27:33 SAST 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1788967651
OK
Wed Sep 9 17:27:33 SAST 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Wed Sep 9 17:27:33 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
Wed Sep 9 17:27:35 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
Wed Sep 9 17:27:35 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Wed Sep 9 17:27:35 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Wed Sep 9 15:27:35 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 553 1024 327 0.992 -0.069 0.249
*metbox2.sth.atl .PPS. 1 u 164 1024 377 0.318 0.059 0.236
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 346 1024 377 23.261 0.336 0.297
+ntp.as3741.net 146.64.8.7 2 u 487 1024 377 22.880 -0.090 0.627
+ntp2.as3741.net 155.232.19.6 2 u 12 1024 377 7.425 0.155 0.282
+ntp2.inx.net.za 183.3.52.101 2 u 566 1024 377 7.310 0.004 0.187
-ntp5.inx.net.za 196.21.187.2 2 u 355 1024 377 8.088 0.107 0.636
#102.222.156.151 196.21.187.2 2 u 84 1024 257 23.539 -0.265 0.489
+ntp2.nog.net.za 80.72.67.48 3 u 507 1024 377 7.605 0.111 0.230
+139.84.231.68 ( 196.21.187.2 2 u 433 1024 377 23.505 -0.102 0.974
+ntp8.inx.net.za 183.3.52.101 2 u 226 1024 377 16.804 -0.011 0.393
Wed Sep 9 17:27:38 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (5017GB)
200GB available in /atlas/red...OK (7966GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.5T 4.8T 54% /
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 5.8T 7.6T 44% /
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 15% /
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
Wed Sep 9 17:27:39 SAST 2026 [elapsed=8 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 Sep 9 17:27:39 SAST 2026 [elapsed=8 sec] Disabling mount tracking.
Wed Sep 9 17:27:39 SAST 2026 [elapsed=8 sec] SERVICES2
Wed Sep 9 17:27:39 SAST 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Sep 9 17:27:43 SAST 2026 [elapsed=12 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= 926kB time=00:00:29.63 bitrate= 256.0kbits/s speed=1.48e+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 Sep 9 17:30:17 SAST 2026 [elapsed=166 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: 239.97 -29.49, az/alt=324.82 +86.49 idle(e) IDLE
Wed Sep 9 17:31:08 SAST 2026 [elapsed=217 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Sep 9 17:31:27 SAST 2026 [elapsed=236 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Wed Sep 9 17:31:27 SAST 2026 [elapsed=236 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.1C)
Checking CCD plane: Z0=+1755.00 DZDX=-899.00 DZDY=+3444.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Sep 9 17:31:27 SAST 2026 [elapsed=236 sec] WEATHER
status weather: clear 21.9C 39% 21/24kph@6 DP13.9C/-20C/d IDLE
...OK
Wed Sep 9 17:31:28 SAST 2026 [elapsed=237 sec] MET
status...OK
met: c=N o=Y Ro3d Co1d Wo4d Ho1d To83d Do9d IDLE
Wed Sep 9 17:31:28 SAST 2026 [elapsed=237 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Sep 9 17:31:30 SAST 2026 [elapsed=239 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 268.88 -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 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 383 4.2%
A 0.111s 723 7.9%
A 0.141s 1172 12.8%
A 0.171s 1763 19.3%
A 0.202s 2443 26.7%
A 0.232s 3232 35.3%
A 0.262s 4135 45.2%
A 0.293s 5085 55.5%
A 0.323s 5964 65.2%
A 0.353s 6756 73.8%
A 0.383s 7419 81.0%
A 0.414s 7983 87.2%
A 0.444s 8452 92.3%
A 0.475s 8790 96.0%
A 0.505s 9020 98.5%
A 0.535s 9152 100.0%
B 0.020s 1 0.0%
B 0.051s 99 1.1%
B 0.081s 386 4.2%
B 0.111s 727 7.9%
B 0.142s 1197 13.1%
B 0.172s 1779 19.4%
B 0.203s 2465 26.9%
B 0.233s 3258 35.6%
B 0.263s 4199 45.9%
B 0.294s 5130 56.0%
B 0.324s 6022 65.8%
B 0.354s 6797 74.3%
B 0.385s 7455 81.4%
B 0.415s 8027 87.7%
B 0.445s 8464 92.5%
B 0.476s 8806 96.2%
B 0.506s 9033 98.7%
B 0.537s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.051s 9057 98.9%
A 0.081s 8761 95.7%
A 0.112s 8401 91.8%
A 0.142s 7934 86.7%
A 0.173s 7329 80.1%
A 0.203s 6645 72.6%
A 0.233s 5840 63.8%
A 0.264s 4922 53.8%
A 0.294s 3986 43.5%
A 0.324s 3110 34.0%
A 0.355s 2329 25.4%
A 0.385s 1671 18.3%
A 0.415s 1116 12.2%
A 0.446s 673 7.4%
A 0.476s 336 3.7%
A 0.506s 114 1.2%
A 0.537s 8 0.1%
B 0.020s 9145 99.9%
B 0.051s 9031 98.7%
B 0.081s 8770 95.8%
B 0.111s 8410 91.9%
B 0.142s 7939 86.7%
B 0.172s 7358 80.4%
B 0.202s 6670 72.9%
B 0.233s 5870 64.1%
B 0.263s 4953 54.1%
B 0.294s 4022 43.9%
B 0.324s 3136 34.3%
B 0.354s 2361 25.8%
B 0.385s 1693 18.5%
B 0.415s 1108 12.1%
B 0.445s 673 7.4%
B 0.476s 337 3.7%
B 0.506s 118 1.3%
B 0.536s 11 0.1%
B 0.567s -4 0.0%
A 0 0.0mm 15 N F R | B -3 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.535 seconds.
Shutter B opened to 99.9 percent in 0.537 seconds.
Shutter A closed to 0.1 percent in 0.537 seconds.
Shutter B closed to 0.0 percent in 0.567 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=9310 IDLE
Wed Sep 9 17:32:07 SAST 2026 [elapsed=276 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:
124M Sep 9 17:32 /atlas/obs/03a/61293/03a61293e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Sep 9 17:32:30 SAST 2026 [elapsed=299 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (40 seconds old)
OTA humidity level...OK (4%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Sep 9 17:32:30 SAST 2026 [elapsed=299 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61292.64757514|info|galildriver|using focus model: foc=9187+(4.30)*20.2+(-0.40)*60.2=9249.8
61292.64758050|info|galildriver|o 2 IN | cass: 3036479 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54020752 9307 um b=8f M [focus]
61292.64758958|info|galildriver|o 2 IN | cass: 3036476 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54015492 9281 um b=8f M [focus]
61292.64760297|info|galildriver|o 2 IN | cass: 3036478 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54009787 9252 um b=8f M [focus]
61292.64761254|info|galildriver|o 2 IN | cass: 3036481 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54009452 9250 um b=0f [cmd]
bestfocus for o...OK
Wed Sep 9 17:32:33 SAST 2026 [elapsed=302 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Sep 9 17:32:59 SAST 2026 [elapsed=328 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 Sep 9 17:33:01 SAST 2026 [elapsed=330 sec] NOTICES: det_dzdx=-899 is outside range +-250 from -558; det_dzdy=3444 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 Sep 9 17:33:01 SAST 2026 [elapsed=330 sec] Happy observing!
Wed Sep 9 17:33:01 SAST 2026 [elapsed=330 sec] Preflight took 330 seconds to complete.
Wed Sep 9 17:33:01 SAST 2026 [elapsed=330 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 120 1.3% A 0.081s 396 4.3% A 0.111s 749 8.2% A 0.141s 1214 13.3% A 0.172s 1804 19.7% A 0.202s 2489 27.2% A 0.232s 3295 36.0% A 0.262s 4204 45.9% A 0.293s 5133 56.1% A 0.323s 6027 65.8% A 0.353s 6796 74.2% A 0.383s 7453 81.4% A 0.414s 8006 87.5% A 0.444s 8457 92.4% A 0.474s 8793 96.1% A 0.504s 9027 98.6% A 0.535s 9137 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 120 1.3% B 0.081s 381 4.2% B 0.111s 728 8.0% B 0.141s 1201 13.1% B 0.171s 1773 19.4% B 0.201s 2468 27.0% B 0.232s 3268 35.7% B 0.262s 4166 45.5% B 0.292s 5102 55.7% B 0.322s 5988 65.4% B 0.353s 6773 74.0% B 0.383s 7439 81.3% B 0.413s 8000 87.4% B 0.444s 8456 92.4% B 0.474s 8796 96.1% B 0.504s 9023 98.6% B 0.534s 9139 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7959 86.9% A 0.171s 7381 80.6% A 0.201s 6692 73.1% A 0.232s 5894 64.4% A 0.262s 4982 54.4% A 0.292s 4038 44.1% A 0.322s 3194 34.9% A 0.353s 2409 26.3% A 0.383s 1732 18.9% A 0.413s 1164 12.7% A 0.443s 705 7.7% A 0.473s 368 4.0% A 0.504s 132 1.4% A 0.534s 15 0.2% A 0.564s 1 0.0% B 0.020s 9144 99.9% B 0.050s 9026 98.6% B 0.081s 8779 95.9% B 0.111s 8434 92.1% B 0.141s 7969 87.1% B 0.171s 7400 80.8% B 0.201s 6714 73.3% B 0.232s 5919 64.7% B 0.262s 5007 54.7% B 0.292s 4083 44.6% B 0.322s 3191 34.9% B 0.353s 2416 26.4% B 0.383s 1727 18.9% B 0.413s 1159 12.7% B 0.443s 713 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 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R