STH Recent Preflight: 61145
Executing preflight for 61145 at Tue Apr 14 17:19:00 SAST 2026.
Log can be found in /atlas/obs/03/61145/preflight.dat.
Setting donefile '/atlas/obs/03/61145/preflight_complete.20260414151900.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260414151900.15307.
Tue Apr 14 17:19:00 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Apr 14 17:19:00 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [152a5df6-d7d1-42a2-bc77-72ce4f805664;1800]
Tue Apr 14 17:19:00 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Apr 14 17:19:01 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Apr 14 17:19:01 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Apr 14 17:19:01 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Apr 14 17:19:01 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1776179932
OK
Tue Apr 14 17:19:01 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Apr 14 17:19:01 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 Apr 14 17:19:03 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
Tue Apr 14 17:19:03 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Apr 14 17:19:03 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Apr 14 15:19:03 UTC 2026
met: 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 69 1024 377 0.975 -0.268 0.127
+metbox2.sth.atl .PPS. 1 u 771 1024 377 0.283 -0.304 0.139
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 196.21.187.2 2 u 311 1024 377 25.093 0.727 0.875
+ntp.as3741.net 146.64.8.7 2 u 546 1024 377 22.769 -0.374 0.201
-ntp2.as3741.net 155.232.19.6 2 u 289 1024 377 7.365 -0.042 0.219
-ntp2.inx.net.za 183.3.52.101 2 u 841 1024 377 7.328 0.212 0.359
-102.222.100.153 196.21.187.2 2 u 778 1024 377 7.875 0.006 1.104
-ntp5.inx.net.za 196.21.187.2 2 u 589 1024 377 8.090 0.378 0.101
-flipping.cloudh 80.72.67.48 3 u 430 1024 377 8.088 0.023 0.212
102.216.37.99 ( 210.182.58.253 2 u 71d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 364 1024 377 23.497 -0.902 1.283
Tue Apr 14 17:19:07 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (6119GB)
200GB available in /atlas/red...OK (8859GB)
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 43% /
admin:/dev/loop1 105M 105M 0 100% /snap/core/17272
admin:/dev/loop2 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 117G 21G 91G 19% /
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
archon:/dev/loop2 105M 105M 0 100% /snap/core/17272
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
tcs:/dev/mapper/ubuntu--vg-ubuntu--lv 98G 35G 59G 37% /
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 5.0T 8.5T 37% /
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/md0p1 15T 1.7T 12T 13% /
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 736G 13T 6% /
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
Tue Apr 14 17:19:07 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
Tue Apr 14 17:19:07 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Tue Apr 14 17:19:07 SAST 2026 [elapsed=7 sec] SERVICES2
Tue Apr 14 17:19:07 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Apr 14 17:19:11 SAST 2026 [elapsed=11 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=1.51e+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
Tue Apr 14 17:21:45 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: 91.98 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Tue Apr 14 17:22:44 SAST 2026 [elapsed=224 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Apr 14 17:23:05 SAST 2026 [elapsed=245 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.6 IDLE
Tue Apr 14 17:23:05 SAST 2026 [elapsed=245 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (1 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.4C)
Checking CCD plane: Z0=+1741.00 DZDX=-891.00 DZDY=+3083.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Apr 14 17:23:05 SAST 2026 [elapsed=245 sec] WEATHER
status weather: C 18.6C 52% 30/45kph@305 DP11.3C/74C/d IDLE
...OK
Tue Apr 14 17:23:06 SAST 2026 [elapsed=246 sec] MET
status...OK
met: c=N o=N Ro3d Cx0 Wo13d Ho8h To17d Do3d wait C IDLE
Tue Apr 14 17:23:06 SAST 2026 [elapsed=246 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Apr 14 17:23:08 SAST 2026 [elapsed=248 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 120.90 -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 -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 0.024s 10 0.1%
A 0.063s 223 2.4%
A 0.099s 584 6.4%
A 0.140s 1190 13.0%
A 0.176s 1805 19.7%
A 0.215s 2835 31.0%
A 0.245s 3684 40.2%
A 0.275s 4629 50.6%
A 0.305s 5548 60.6%
A 0.336s 6389 69.8%
A 0.366s 7114 77.7%
A 0.396s 7720 84.3%
A 0.427s 8241 90.0%
A 0.457s 8640 94.4%
A 0.487s 8911 97.3%
A 0.518s 9099 99.4%
A 0.548s 9165 100.0%
B 0.020s 1 0.0%
B 0.050s 98 1.1%
B 0.081s 385 4.2%
B 0.111s 726 7.9%
B 0.141s 1198 13.1%
B 0.171s 1778 19.4%
B 0.202s 2464 26.9%
B 0.232s 3256 35.6%
B 0.262s 4168 45.5%
B 0.292s 5103 55.7%
B 0.323s 5991 65.4%
B 0.353s 6775 74.0%
B 0.383s 7435 81.2%
B 0.413s 8011 87.5%
B 0.444s 8455 92.4%
B 0.474s 8797 96.1%
B 0.504s 9027 98.6%
B 0.534s 9143 99.9%
B 0.565s 9161 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8760 95.7%
A 0.111s 8401 91.8%
A 0.141s 7951 86.9%
A 0.172s 7352 80.3%
A 0.202s 6692 73.1%
A 0.232s 5868 64.1%
A 0.263s 4954 54.1%
A 0.293s 4016 43.9%
A 0.323s 3138 34.3%
A 0.354s 2353 25.7%
A 0.384s 1690 18.5%
A 0.414s 1131 12.4%
A 0.445s 687 7.5%
A 0.475s 345 3.8%
A 0.505s 122 1.3%
A 0.535s 11 0.1%
A 0.566s -6 0.0%
B 0.020s 9146 99.9%
B 0.050s 9034 98.7%
B 0.081s 8771 95.8%
B 0.111s 8423 92.0%
B 0.141s 7955 86.9%
B 0.172s 7379 80.6%
B 0.202s 6695 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 2386 26.1%
B 0.384s 1713 18.7%
B 0.414s 1141 12.5%
B 0.444s 697 7.6%
B 0.474s 365 4.0%
B 0.505s 128 1.4%
B 0.535s 13 0.1%
B 0.565s -4 0.0%
A 1 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 0.548 seconds.
Shutter B opened to 100.0 percent in 0.565 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= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.13e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[1] foc=9236 IDLE
Tue Apr 14 17:24:01 SAST 2026 [elapsed=301 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.6 IDLE
taking preflight exposures:
acam...OK
acam image:
125M Apr 14 17:24 /atlas/obs/03a/61145/03a61145e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Apr 14 17:24:24 SAST 2026 [elapsed=324 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (67 seconds old)
OTA humidity level...OK (9%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Apr 14 17:24:24 SAST 2026 [elapsed=324 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61144.64195053|info|galildriver|using focus model: foc=9187+(4.30)*18.2+(-0.40)*60.2=9241.2
61144.64195577|info|galildriver|c 1 IN | cass: 18185 0.09 mm b=23 move=NO | arm: 408768 475.87 mm b=03 move=OK | foc: 54006787 9237 um b=8f M [focus]
61144.64196638|info|galildriver|c 1 IN | cass: 18183 0.09 mm b=23 move=NO | arm: 408768 475.87 mm b=03 move=OK | foc: 54006857 9237 um b=2f [cmd]
bestfocus for c...OK
Tue Apr 14 17:24:26 SAST 2026 [elapsed=326 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Apr 14 17:24:56 SAST 2026 [elapsed=356 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 Apr 14 17:24:57 SAST 2026 [elapsed=357 sec] NOTICES: det_dzdx=-891 is outside range +-250 from -558; det_dzdy=3083 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 Apr 14 17:24:57 SAST 2026 [elapsed=357 sec] Happy observing!
Tue Apr 14 17:24:57 SAST 2026 [elapsed=357 sec] Preflight took 357 seconds to complete.
Tue Apr 14 17:24:57 SAST 2026 [elapsed=357 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 122 1.3% A 0.082s 405 4.4% A 0.112s 762 8.3% A 0.143s 1231 13.4% A 0.173s 1843 20.1% A 0.203s 2538 27.7% A 0.234s 3350 36.6% A 0.264s 4265 46.6% A 0.295s 5191 56.7% A 0.325s 6078 66.4% A 0.356s 6843 74.8% A 0.386s 7513 82.1% A 0.417s 8071 88.2% A 0.447s 8507 92.9% A 0.478s 8828 96.4% A 0.508s 9049 98.9% A 0.538s 9146 99.9% B 0.020s 2 0.0% B 0.051s 110 1.2% B 0.081s 387 4.2% B 0.111s 741 8.1% B 0.142s 1219 13.3% B 0.172s 1796 19.6% B 0.203s 2492 27.2% B 0.233s 3322 36.3% B 0.264s 4229 46.2% B 0.294s 5161 56.4% B 0.324s 6044 66.0% B 0.355s 6818 74.5% B 0.386s 7480 81.7% B 0.416s 8050 87.9% B 0.447s 8493 92.8% B 0.477s 8822 96.4% B 0.508s 9039 98.7% B 0.538s 9144 99.9% B 0.569s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9050 98.9% A 0.081s 8777 95.9% A 0.112s 8408 91.9% A 0.142s 7941 86.7% A 0.173s 7359 80.4% A 0.203s 6668 72.8% A 0.234s 5839 63.8% A 0.264s 4920 53.7% A 0.295s 3979 43.5% A 0.325s 3111 34.0% A 0.355s 2340 25.6% A 0.386s 1670 18.2% A 0.416s 1114 12.2% A 0.446s 669 7.3% A 0.477s 339 3.7% A 0.507s 114 1.2% A 0.538s 10 0.1% A 0.568s 2 0.0% B 0.020s 9145 99.9% B 0.051s 9018 98.5% B 0.081s 8772 95.8% B 0.111s 8420 92.0% B 0.142s 7951 86.9% B 0.172s 7378 80.6% B 0.203s 6690 73.1% B 0.233s 5865 64.1% B 0.264s 4950 54.1% B 0.294s 4022 43.9% B 0.324s 3137 34.3% B 0.355s 2370 25.9% B 0.385s 1683 18.4% B 0.415s 1131 12.4% B 0.445s 687 7.5% B 0.476s 347 3.8% B 0.506s 127 1.4% B 0.536s 12 0.1% B 0.566s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R