STH Recent Preflight: 61340
Executing preflight for 61340 at Mon Oct 26 18:00:02 SAST 2026.
Log can be found in /atlas/obs/03/61340/preflight.dat.
Setting donefile '/atlas/obs/03/61340/preflight_complete.20261026160002.3532' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261026160002.3532.
Mon Oct 26 18:00:02 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Oct 26 18:00:02 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [7144ee38-6de7-46ed-ae8c-786da32bd428;1800]
Mon Oct 26 18:00:02 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Oct 26 18:00:03 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Oct 26 18:00:03 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Mon Oct 26 18:00:03 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Oct 26 18:00:03 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1793030400
OK
Mon Oct 26 18:00:03 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Oct 26 18:00:03 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
Mon Oct 26 18:00:05 SAST 2026 [elapsed=3 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
Mon Oct 26 18:00:05 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Oct 26 18:00:05 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Mon Oct 26 16:00:05 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 628 1024 13 1.067 0.002 0.078
*metbox2.sth.atl .PPS. 1 u 657 1024 377 0.298 -0.055 0.019
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 424 1024 377 23.410 -0.592 0.704
-ntp.as3741.net 210.182.58.253 2 u 153 1024 377 22.691 -0.012 0.672
-ntp2.as3741.net 146.64.58.41 2 u 534 1024 377 7.109 -0.036 0.107
-196.10.54.57 210.182.58.253 2 u 932 1024 377 7.251 -0.052 0.510
+ntp2.nog.net.za 80.72.67.48 3 u 936 1024 377 7.475 0.043 0.045
-139.84.231.68 ( 196.21.187.2 2 u 422 1024 377 22.858 0.025 0.163
-ntp7.inx.net.za 210.182.58.253 2 u 424 1024 377 16.509 0.105 0.925
+tick.sanren.ac. .TC. 1 u 41 1024 377 23.262 0.024 0.031
Mon Oct 26 18:00:09 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (6465GB)
200GB available in /atlas/red...OK (9485GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.1T 6.2T 40% /
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 4.4T 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 1.8T 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
Mon Oct 26 18:00:09 SAST 2026 [elapsed=7 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
Mon Oct 26 18:00:09 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Mon Oct 26 18:00:10 SAST 2026 [elapsed=8 sec] SERVICES2
Mon Oct 26 18:00:10 SAST 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Oct 26 18:00:14 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= 924kB time=00:00:29.56 bitrate= 256.0kbits/s speed=1.44e+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
Mon Oct 26 18:02:47 SAST 2026 [elapsed=165 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: 294.44 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Mon Oct 26 18:03:38 SAST 2026 [elapsed=216 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Oct 26 18:03:58 SAST 2026 [elapsed=236 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Mon Oct 26 18:03:58 SAST 2026 [elapsed=236 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (0 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.2C)
Checking CCD plane: Z0=+1748.00 DZDX=-923.00 DZDY=+3268.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Oct 26 18:03:58 SAST 2026 [elapsed=236 sec] WEATHER
status weather: clear 17.2C 37% 24/30kph@296 DP15.2C/8C/d IDLE
...OK
Mon Oct 26 18:03:59 SAST 2026 [elapsed=237 sec] MET
status...OK
met: c=N o=Y Ro20d Co3d Wo3d Ho4d To32d Do5d IDLE
Mon Oct 26 18:03:59 SAST 2026 [elapsed=237 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Oct 26 18:03:59 SAST 2026 [elapsed=237 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 323.36 -14.64, 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 -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 8 0.1%
A 0.051s 115 1.3%
A 0.081s 403 4.4%
A 0.112s 746 8.1%
A 0.142s 1208 13.2%
A 0.172s 1804 19.7%
A 0.203s 2490 27.2%
A 0.233s 3288 35.9%
A 0.263s 4193 45.8%
A 0.294s 5144 56.2%
A 0.324s 6047 66.1%
A 0.354s 6825 74.6%
A 0.385s 7477 81.7%
A 0.415s 8034 87.8%
A 0.446s 8491 92.8%
A 0.476s 8808 96.2%
A 0.506s 9033 98.7%
A 0.537s 9156 100.0%
B 0.020s 1 0.0%
B 0.051s 98 1.1%
B 0.081s 386 4.2%
B 0.111s 726 7.9%
B 0.142s 1198 13.1%
B 0.172s 1777 19.4%
B 0.202s 2490 27.2%
B 0.233s 3284 35.9%
B 0.263s 4197 45.8%
B 0.294s 5131 56.1%
B 0.324s 6021 65.8%
B 0.354s 6795 74.2%
B 0.385s 7457 81.5%
B 0.415s 8025 87.7%
B 0.445s 8467 92.5%
B 0.476s 8807 96.2%
B 0.506s 9033 98.7%
B 0.536s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9057 98.9%
A 0.081s 8761 95.7%
A 0.111s 8401 91.8%
A 0.141s 7950 86.8%
A 0.172s 7352 80.3%
A 0.202s 6670 72.9%
A 0.232s 5868 64.1%
A 0.262s 4952 54.1%
A 0.293s 4016 43.9%
A 0.323s 3138 34.3%
A 0.354s 2351 25.7%
A 0.384s 1691 18.5%
A 0.414s 1131 12.4%
A 0.445s 685 7.5%
A 0.475s 346 3.8%
A 0.505s 118 1.3%
A 0.536s 9 0.1%
B 0.020s 9145 99.9%
B 0.050s 9025 98.6%
B 0.081s 8761 95.7%
B 0.111s 8409 91.9%
B 0.141s 7939 86.7%
B 0.172s 7359 80.4%
B 0.202s 6670 72.9%
B 0.232s 5870 64.1%
B 0.262s 4954 54.1%
B 0.293s 4021 43.9%
B 0.323s 3138 34.3%
B 0.353s 2360 25.8%
B 0.384s 1692 18.5%
B 0.414s 1125 12.3%
B 0.444s 684 7.5%
B 0.475s 346 3.8%
B 0.505s 118 1.3%
B 0.535s 9 0.1%
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 0.537 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.1 percent in 0.536 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.09e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9312 IDLE
Mon Oct 26 18:04:36 SAST 2026 [elapsed=274 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 26 18:04 /atlas/obs/03a/61340/03a61340e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Oct 26 18:04:59 SAST 2026 [elapsed=297 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (32 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Oct 26 18:04:59 SAST 2026 [elapsed=297 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61339.67013480|info|galildriver|using focus model: foc=9187+(4.30)*18.6+(-0.40)*60.2=9242.9
61339.67014015|info|galildriver|o 2 IN | cass: 3035584 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54021822 9312 um b=8f M [focus]
61339.67014923|info|galildriver|o 2 IN | cass: 3035587 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54017301 9290 um b=8f M [focus]
61339.67016087|info|galildriver|o 2 IN | cass: 3035589 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54010650 9256 um b=8f M [focus]
61339.67016903|info|galildriver|o 2 IN | cass: 3035592 15.18 mm b=23 move=NO | arm: 409734 477.00 mm b=03 move=OK | foc: 54008071 9243 um b=0f [cmd]
bestfocus for o...OK
Mon Oct 26 18:05:02 SAST 2026 [elapsed=300 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Oct 26 18:05:28 SAST 2026 [elapsed=326 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
Mon Oct 26 18:05:30 SAST 2026 [elapsed=328 sec] NOTICES: det_dzdx=-923 is outside range +-250 from -558; det_dzdy=3268 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Mon Oct 26 18:05:30 SAST 2026 [elapsed=328 sec] Happy observing!
Mon Oct 26 18:05:30 SAST 2026 [elapsed=328 sec] Preflight took 328 seconds to complete.
Mon Oct 26 18:05:30 SAST 2026 [elapsed=328 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 0.050s 115 1.3% A 0.081s 384 4.2% A 0.111s 737 8.1% A 0.141s 1197 13.1% A 0.171s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.322s 5998 65.5% A 0.353s 6775 74.0% A 0.383s 7432 81.2% A 0.413s 8004 87.4% A 0.444s 8459 92.4% A 0.474s 8793 96.1% A 0.504s 9027 98.6% A 0.534s 9138 99.8% A 0.565s 9154 100.0% B 0.020s 2 0.0% B 0.050s 111 1.2% B 0.081s 380 4.2% B 0.111s 727 7.9% B 0.141s 1202 13.1% B 0.171s 1772 19.4% B 0.201s 2467 26.9% B 0.232s 3268 35.7% B 0.262s 4167 45.5% B 0.292s 5103 55.7% B 0.323s 5988 65.4% B 0.353s 6773 74.0% B 0.383s 7440 81.3% B 0.413s 8002 87.4% B 0.444s 8455 92.4% B 0.474s 8794 96.1% B 0.504s 9023 98.6% 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 9055 98.9% A 0.081s 8787 96.0% A 0.111s 8434 92.1% A 0.141s 7974 87.1% A 0.172s 7401 80.8% A 0.202s 6717 73.4% A 0.232s 5923 64.7% A 0.262s 5014 54.8% A 0.293s 4037 44.1% A 0.323s 3194 34.9% A 0.353s 2410 26.3% A 0.383s 1732 18.9% A 0.414s 1163 12.7% A 0.444s 706 7.7% A 0.474s 368 4.0% A 0.504s 130 1.4% A 0.535s 15 0.2% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9024 98.6% B 0.081s 8780 95.9% B 0.111s 8433 92.1% B 0.141s 7969 87.1% B 0.171s 7399 80.8% B 0.202s 6713 73.3% B 0.232s 5920 64.7% B 0.262s 5008 54.7% B 0.292s 4083 44.6% B 0.323s 3191 34.9% B 0.353s 2419 26.4% B 0.383s 1723 18.8% B 0.413s 1159 12.7% B 0.444s 713 7.8% B 0.474s 364 4.0% B 0.504s 138 1.5% B 0.535s 16 0.2% B 0.565s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R