STH Recent Preflight: 61191
Executing preflight for 61191 at Sat May 30 16:42:44 SAST 2026.
Log can be found in /atlas/obs/03/61191/preflight.dat.
Setting donefile '/atlas/obs/03/61191/preflight_complete.20260530144244.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260530144244.11042.
Sat May 30 16:42:44 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat May 30 16:42:44 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [987fae03-c0a0-41c1-9d7a-42ab2973dcef;1800]
Sat May 30 16:42:44 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat May 30 16:42:45 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat May 30 16:42:45 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat May 30 16:42:45 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat May 30 16:42:45 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1780152161
OK
Sat May 30 16:42:45 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat May 30 16:42:45 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
Sat May 30 16:42:47 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
Sat May 30 16:42:47 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat May 30 16:42:47 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sat May 30 14:42:47 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 85 512 377 0.956 -0.060 0.215
-metbox2.sth.atl .PPS. 1 u 426 512 377 0.283 -0.085 0.011
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 294 512 377 24.290 -0.274 0.381
+ntp.as3741.net 210.182.58.253 2 u 287 512 377 22.809 -0.059 0.151
+ntp2.as3741.net 129.134.26.123 2 u 451 512 377 7.228 -0.062 0.066
-ntp2.inx.net.za 196.21.187.2 2 u 490 512 377 7.281 0.001 0.044
102.222.100.153 196.21.187.2 2 u 31d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 196.21.187.2 2 u 277 512 377 7.585 -0.102 0.204
-flipping.cloudh 80.72.67.48 3 u 404 512 377 7.741 -0.219 0.073
102.216.37.99 ( 210.182.58.253 2 u 117d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 264 512 377 22.692 -0.653 0.108
Sat May 30 16:42:49 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6150GB)
200GB available in /atlas/red...OK (9136GB)
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/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 37G 57G 40% /
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 4.7T 8.8T 35% /
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 739G 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
Sat May 30 16:42:49 SAST 2026 [elapsed=5 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
Sat May 30 16:42:49 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Sat May 30 16:42:49 SAST 2026 [elapsed=5 sec] SERVICES2
Sat May 30 16:42:49 SAST 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat May 30 16:42:54 SAST 2026 [elapsed=10 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= 920kB time=00:00:29.44 bitrate= 256.0kbits/s speed=1.49e+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
Sat May 30 16:45:25 SAST 2026 [elapsed=161 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: 128.20 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Sat May 30 16:46:23 SAST 2026 [elapsed=219 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat May 30 16:46:44 SAST 2026 [elapsed=240 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.3 IDLE
Sat May 30 16:46:44 SAST 2026 [elapsed=240 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 (-54.6C)
Checking CCD plane: Z0=+1731.00 DZDX=-891.00 DZDY=+2861.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat May 30 16:46:44 SAST 2026 [elapsed=240 sec] WEATHER
status weather: clear 16.9C 51% 13/19kph@34 DP8.8C/-43C/d IDLE
...OK
Sat May 30 16:46:44 SAST 2026 [elapsed=240 sec] MET
status...OK
met: c=N o=Y Ro9d Co1d Wo9d Ho20h To9d Do22h IDLE
Sat May 30 16:46:44 SAST 2026 [elapsed=240 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat May 30 16:46:44 SAST 2026 [elapsed=240 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 157.13 -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 0.020s 7 0.1%
A 0.051s 102 1.1%
A 0.081s 382 4.2%
A 0.111s 721 7.9%
A 0.141s 1172 12.8%
A 0.184s 1995 21.8%
A 0.220s 2759 30.1%
A 0.254s 3800 41.5%
A 0.290s 5025 54.9%
A 0.320s 5910 64.6%
A 0.351s 6708 73.3%
A 0.381s 7380 80.6%
A 0.411s 7948 86.8%
A 0.442s 8425 92.0%
A 0.472s 8766 95.8%
A 0.502s 9003 98.4%
A 0.533s 9145 99.9%
B 0.020s 1 0.0%
B 0.050s 104 1.1%
B 0.081s 397 4.3%
B 0.111s 740 8.1%
B 0.141s 1215 13.3%
B 0.172s 1796 19.6%
B 0.202s 2491 27.2%
B 0.232s 3258 35.6%
B 0.262s 4196 45.8%
B 0.292s 5103 55.7%
B 0.323s 6019 65.8%
B 0.353s 6797 74.3%
B 0.383s 7456 81.5%
B 0.414s 8026 87.7%
B 0.444s 8466 92.5%
B 0.474s 8807 96.2%
B 0.505s 9034 98.7%
B 0.535s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9063 99.0%
A 0.081s 8773 95.8%
A 0.111s 8416 91.9%
A 0.141s 7968 87.0%
A 0.172s 7373 80.5%
A 0.202s 6692 73.1%
A 0.232s 5896 64.4%
A 0.262s 4983 54.4%
A 0.293s 4044 44.2%
A 0.323s 3164 34.6%
A 0.353s 2377 26.0%
A 0.383s 1710 18.7%
A 0.414s 1147 12.5%
A 0.444s 699 7.6%
A 0.474s 356 3.9%
A 0.504s 128 1.4%
A 0.535s 12 0.1%
A 0.565s -6 0.0%
B 0.020s 9146 99.9%
B 0.050s 9035 98.7%
B 0.081s 8771 95.8%
B 0.111s 8424 92.0%
B 0.141s 7957 86.9%
B 0.171s 7379 80.6%
B 0.202s 6695 73.1%
B 0.232s 5896 64.4%
B 0.262s 4984 54.4%
B 0.292s 4051 44.3%
B 0.323s 3165 34.6%
B 0.353s 2384 26.0%
B 0.383s 1732 18.9%
B 0.413s 1141 12.5%
B 0.444s 710 7.8%
B 0.474s 355 3.9%
B 0.504s 129 1.4%
B 0.534s 15 0.2%
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 99.9 percent in 0.533 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=1.09e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9234 IDLE
Sat May 30 16:47:42 SAST 2026 [elapsed=298 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.3 IDLE
taking preflight exposures:
acam...OK
acam image:
124M May 30 16:47 /atlas/obs/03a/61191/03a61191e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat May 30 16:48:04 SAST 2026 [elapsed=320 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (47 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat May 30 16:48:04 SAST 2026 [elapsed=320 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61190.61672154|info|galildriver|using focus model: foc=9187+(4.30)*17.4+(-0.40)*60.2=9237.7
61190.61672678|info|galildriver|o 2 IN | cass: 3046048 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54006262 9234 um b=8f M [focus]
61190.61673767|info|galildriver|o 2 IN | cass: 3046048 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54006336 9235 um b=2f [cmd]
bestfocus for o...OK
Sat May 30 16:48:06 SAST 2026 [elapsed=322 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat May 30 16:48:36 SAST 2026 [elapsed=352 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
Sat May 30 16:48:38 SAST 2026 [elapsed=354 sec] NOTICES: det_dzdx=-891 is outside range +-250 from -558; det_dzdy=2861 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sat May 30 16:48:38 SAST 2026 [elapsed=354 sec] Happy observing!
Sat May 30 16:48:38 SAST 2026 [elapsed=354 sec] Preflight took 354 seconds to complete.
Sat May 30 16:48:38 SAST 2026 [elapsed=354 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 375 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.172s 1762 19.2% A 0.202s 2443 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.292s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.413s 7989 87.3% A 0.444s 8445 92.3% A 0.474s 8783 95.9% A 0.504s 9022 98.6% A 0.534s 9134 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 120 1.3% B 0.081s 389 4.2% B 0.111s 742 8.1% B 0.141s 1219 13.3% B 0.171s 1793 19.6% B 0.201s 2467 26.9% B 0.232s 3297 36.0% B 0.262s 4168 45.5% B 0.292s 5103 55.7% B 0.323s 6015 65.7% B 0.353s 6795 74.2% B 0.383s 7461 81.5% B 0.413s 8018 87.6% B 0.444s 8455 92.4% B 0.474s 8804 96.2% B 0.504s 9028 98.6% B 0.534s 9138 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.051s 9050 98.9% A 0.081s 8770 95.8% A 0.111s 8410 91.9% A 0.141s 7960 87.0% A 0.172s 7383 80.7% A 0.202s 6693 73.1% A 0.232s 5897 64.4% A 0.262s 4984 54.4% A 0.292s 4040 44.1% A 0.323s 3168 34.6% A 0.353s 2386 26.1% A 0.383s 1710 18.7% A 0.413s 1148 12.5% A 0.443s 694 7.6% A 0.474s 359 3.9% A 0.504s 126 1.4% A 0.534s 14 0.2% A 0.564s 3 0.0% B 0.020s 9144 99.9% B 0.051s 9020 98.5% B 0.081s 8772 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.172s 7379 80.6% B 0.202s 6691 73.1% B 0.232s 5892 64.4% B 0.262s 4981 54.4% B 0.292s 4055 44.3% B 0.323s 3165 34.6% B 0.353s 2391 26.1% B 0.383s 1702 18.6% B 0.413s 1147 12.5% B 0.444s 712 7.8% B 0.474s 356 3.9% B 0.504s 138 1.5% B 0.534s 14 0.2% B 0.565s 1 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R