STH Recent Preflight: 61183
Executing preflight for 61183 at Fri May 22 16:45:45 SAST 2026.
Log can be found in /atlas/obs/03/61183/preflight.dat.
Setting donefile '/atlas/obs/03/61183/preflight_complete.20260522144545.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260522144545.11042.
Fri May 22 16:45:45 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri May 22 16:45:45 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [1f279c6a-e608-4f6e-b059-c3ce8be0cea7;1800]
Fri May 22 16:45:45 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Fri May 22 16:45:46 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Fri May 22 16:45:46 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Fri May 22 16:45:46 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri May 22 16:45:46 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1779461141
OK
Fri May 22 16:45:46 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri May 22 16:45:46 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
Fri May 22 16:45:48 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
Fri May 22 16:45:48 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri May 22 16:45:48 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Fri May 22 14:45:48 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 720 1024 217 1.014 0.100 0.202
*metbox2.sth.atl .PPS. 1 u 369 1024 377 0.316 0.028 0.033
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 229.179.94.34 2 u 302 1024 377 25.943 0.430 0.477
-ntp.as3741.net 210.182.58.253 2 u 121 1024 377 23.781 -0.435 0.145
-ntp2.as3741.net 129.134.26.123 2 u 499 1024 377 7.286 0.370 0.038
-ntp2.inx.net.za 196.21.187.2 2 u 475 1024 377 7.283 -0.022 0.076
102.222.100.153 196.21.187.2 2 u 23d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 102.176.229.251 2 u 325 1024 377 7.515 0.058 0.117
+flipping.cloudh 80.72.67.48 3 u 178 1024 377 7.704 -0.047 0.113
102.216.37.99 ( 210.182.58.253 2 u 109d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 959 1024 377 24.270 0.173 0.056
Fri May 22 16:45:51 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6330GB)
200GB available in /atlas/red...OK (9646GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.2T 6.1T 41% /
admin:/dev/loop2 106M 106M 0 100% /snap/core/17284
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 21G 91G 19% /
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
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 4.2T 9.2T 32% /
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/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 737G 13T 6% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17292
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
Fri May 22 16:45:51 SAST 2026 [elapsed=6 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
Fri May 22 16:45:51 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Fri May 22 16:45:51 SAST 2026 [elapsed=6 sec] SERVICES2
Fri May 22 16:45:54 SAST 2026 [elapsed=9 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri May 22 16:45:59 SAST 2026 [elapsed=14 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= 930kB time=00:00:29.76 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
Fri May 22 16:48:34 SAST 2026 [elapsed=169 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: 121.11 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Fri May 22 16:49:32 SAST 2026 [elapsed=227 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri May 22 16:49:53 SAST 2026 [elapsed=248 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.2 IDLE
Fri May 22 16:49:53 SAST 2026 [elapsed=248 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.0C)
Checking CCD plane: Z0=+1700.00 DZDX=-887.00 DZDY=+2142.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri May 22 16:49:53 SAST 2026 [elapsed=248 sec] WEATHER
status weather: C 10.0C 69% 8/13kph@198 DP6.6C/48C/d IDLE
...OK
Fri May 22 16:49:54 SAST 2026 [elapsed=249 sec] MET
status...OK
met: c=N o=N Ro1d Cx3 Wo1d Ho16h To1d Do1h wait C IDLE
Fri May 22 16:49:54 SAST 2026 [elapsed=249 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri May 22 16:49:54 SAST 2026 [elapsed=249 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 150.03 -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 0.050s 101 1.1%
A 0.081s 380 4.2%
A 0.111s 721 7.9%
A 0.141s 1171 12.8%
A 0.171s 1762 19.2%
A 0.202s 2442 26.7%
A 0.232s 3231 35.3%
A 0.262s 4134 45.2%
A 0.292s 5085 55.5%
A 0.323s 5963 65.1%
A 0.353s 6757 73.8%
A 0.383s 7419 81.0%
A 0.413s 7982 87.2%
A 0.443s 8454 92.4%
A 0.474s 8784 96.0%
A 0.504s 9016 98.5%
A 0.534s 9149 99.9%
B 0.020s 1 0.0%
B 0.050s 97 1.1%
B 0.081s 382 4.2%
B 0.111s 727 7.9%
B 0.141s 1195 13.1%
B 0.171s 1776 19.4%
B 0.202s 2464 26.9%
B 0.232s 3258 35.6%
B 0.262s 4165 45.5%
B 0.293s 5101 55.7%
B 0.323s 5991 65.4%
B 0.353s 6774 74.0%
B 0.383s 7437 81.2%
B 0.414s 8011 87.5%
B 0.444s 8455 92.4%
B 0.474s 8808 96.2%
B 0.504s 9029 98.6%
B 0.535s 9149 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9057 98.9%
A 0.081s 8762 95.7%
A 0.111s 8403 91.8%
A 0.141s 7950 86.8%
A 0.171s 7353 80.3%
A 0.202s 6670 72.9%
A 0.232s 5868 64.1%
A 0.262s 4954 54.1%
A 0.293s 4016 43.9%
A 0.323s 3136 34.3%
A 0.353s 2353 25.7%
A 0.383s 1690 18.5%
A 0.414s 1129 12.3%
A 0.444s 687 7.5%
A 0.474s 345 3.8%
A 0.504s 121 1.3%
A 0.535s 11 0.1%
A 0.565s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9041 98.8%
B 0.081s 8784 96.0%
B 0.111s 8438 92.2%
B 0.141s 7974 87.1%
B 0.171s 7400 80.8%
B 0.202s 6718 73.4%
B 0.232s 5924 64.7%
B 0.262s 5014 54.8%
B 0.293s 4079 44.6%
B 0.323s 3192 34.9%
B 0.353s 2406 26.3%
B 0.383s 1733 18.9%
B 0.414s 1156 12.6%
B 0.444s 708 7.7%
B 0.474s 365 4.0%
B 0.504s 133 1.5%
B 0.535s 15 0.2%
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 99.9 percent in 0.534 seconds.
Shutter B opened to 99.9 percent in 0.535 seconds.
Shutter A closed to 0.0 percent in 0.565 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=1.06e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9219 IDLE
Fri May 22 16:50:49 SAST 2026 [elapsed=304 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.2 IDLE
taking preflight exposures:
acam...OK
acam image:
123M May 22 16:51 /atlas/obs/03a/61183/03a61183e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri May 22 16:51:11 SAST 2026 [elapsed=326 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (54 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri May 22 16:51:11 SAST 2026 [elapsed=326 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61182.61889261|info|galildriver|using focus model: foc=9187+(4.30)*14.0+(-0.40)*60.2=9223.1
61182.61889786|info|galildriver|o 2 IN | cass: 3048093 15.24 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54003288 9220 um b=8f M [focus]
61182.61890846|info|galildriver|o 2 IN | cass: 3048093 15.24 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54003362 9220 um b=2f [cmd]
bestfocus for o...OK
Fri May 22 16:51:14 SAST 2026 [elapsed=329 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri May 22 16:51:44 SAST 2026 [elapsed=359 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
Fri May 22 16:51:46 SAST 2026 [elapsed=361 sec] NOTICES: det_dzdx=-887 is outside range +-250 from -558; det_dzdy=2142 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Fri May 22 16:51:46 SAST 2026 [elapsed=361 sec] Happy observing!
Fri May 22 16:51:46 SAST 2026 [elapsed=361 sec] Preflight took 361 seconds to complete.
Fri May 22 16:51:46 SAST 2026 [elapsed=361 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 0.051s 107 1.2% A 0.081s 373 4.1% A 0.111s 722 7.9% A 0.141s 1180 12.9% A 0.172s 1761 19.2% A 0.202s 2443 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.293s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.414s 7988 87.3% A 0.444s 8445 92.3% A 0.474s 8782 95.9% A 0.504s 9022 98.6% A 0.534s 9135 99.8% A 0.565s 9154 100.0% B 0.020s 2 0.0% B 0.050s 119 1.3% B 0.080s 388 4.2% B 0.111s 743 8.1% B 0.141s 1204 13.2% B 0.171s 1774 19.4% B 0.201s 2469 27.0% B 0.231s 3269 35.7% B 0.262s 4168 45.5% B 0.292s 5104 55.8% B 0.322s 5990 65.4% B 0.352s 6774 74.0% B 0.383s 7439 81.3% B 0.413s 8002 87.4% B 0.443s 8455 92.4% B 0.474s 8796 96.1% B 0.504s 9023 98.6% B 0.534s 9139 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9051 98.9% A 0.081s 8778 95.9% A 0.111s 8420 92.0% A 0.141s 7958 86.9% A 0.171s 7381 80.6% A 0.201s 6691 73.1% A 0.232s 5894 64.4% A 0.262s 5012 54.8% A 0.292s 4039 44.1% A 0.322s 3194 34.9% A 0.353s 2409 26.3% A 0.383s 1731 18.9% A 0.413s 1163 12.7% A 0.443s 706 7.7% A 0.473s 368 4.0% A 0.504s 131 1.4% A 0.534s 14 0.2% A 0.564s 1 0.0% B 0.020s 9147 99.9% B 0.050s 9026 98.6% B 0.080s 8781 95.9% B 0.111s 8434 92.1% B 0.141s 7968 87.0% B 0.171s 7399 80.8% B 0.202s 6714 73.3% B 0.232s 5919 64.7% B 0.262s 5011 54.7% B 0.292s 4083 44.6% B 0.323s 3193 34.9% B 0.353s 2414 26.4% B 0.383s 1722 18.8% B 0.413s 1164 12.7% B 0.443s 725 7.9% B 0.473s 367 4.0% B 0.504s 145 1.6% B 0.534s 18 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R