STH Recent Preflight: 61188
Executing preflight for 61188 at Wed May 27 16:43:34 SAST 2026.
Log can be found in /atlas/obs/03/61188/preflight.dat.
Setting donefile '/atlas/obs/03/61188/preflight_complete.20260527144334.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260527144334.11042.
Wed May 27 16:43:34 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed May 27 16:43:34 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [310173dd-e47b-4c4e-847c-68ab8d6845d9;1800]
Wed May 27 16:43:34 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed May 27 16:43:35 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed May 27 16:43:35 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed May 27 16:43:35 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed May 27 16:43:35 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1779893009
OK
Wed May 27 16:43:35 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed May 27 16:43:35 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
Wed May 27 16:43:37 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
Wed May 27 16:43:37 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed May 27 16:43:37 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Wed May 27 14:43:37 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 133 256 377 0.903 -0.014 0.211
+metbox2.sth.atl .PPS. 1 u 13 256 377 0.264 -0.194 0.086
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 214 256 377 24.164 -0.316 0.587
-ntp.as3741.net 210.182.58.253 2 u 11 256 377 22.768 -0.234 0.196
-ntp2.as3741.net 129.134.26.123 2 u 264 256 377 7.157 -0.397 0.398
-ntp2.inx.net.za 210.182.58.253 2 u 191 256 377 7.212 -0.243 0.100
102.222.100.153 196.21.187.2 2 u 28d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 183.3.52.101 2 u 102 256 377 7.443 -0.358 0.153
+flipping.cloudh 80.72.67.48 3 u 111 256 377 7.840 -0.333 2.167
102.216.37.99 ( 210.182.58.253 2 u 114d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 102.176.229.251 2 u 41 256 377 22.703 -0.228 0.179
Wed May 27 16:43:40 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6178GB)
200GB available in /atlas/red...OK (9347GB)
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 56G 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 4.5T 9.0T 34% /
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
Wed May 27 16:43:40 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
Wed May 27 16:43:40 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Wed May 27 16:43:40 SAST 2026 [elapsed=6 sec] SERVICES2
Wed May 27 16:43:40 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed May 27 16:43:45 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= 932kB time=00:00:29.82 bitrate= 256.0kbits/s speed=1.43e+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 May 27 16:46:15 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: 125.46 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Wed May 27 16:47:14 SAST 2026 [elapsed=220 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed May 27 16:47:35 SAST 2026 [elapsed=241 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
Wed May 27 16:47:35 SAST 2026 [elapsed=241 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 (-54.8C)
Checking CCD plane: Z0=+1720.00 DZDX=-892.00 DZDY=+2589.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed May 27 16:47:36 SAST 2026 [elapsed=242 sec] WEATHER
status weather: clear 13.4C 56% 15/24kph@349 DP8.6C/2C/d IDLE
...OK
Wed May 27 16:47:36 SAST 2026 [elapsed=242 sec] MET
status...OK
met: c=N o=Y Ro6d Co3d Wo6d Ho3d To6d Do3d IDLE
Wed May 27 16:47:36 SAST 2026 [elapsed=242 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed May 27 16:47:36 SAST 2026 [elapsed=242 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 154.39 -14.63, az/alt=59.89 +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 -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 0.051s 107 1.2%
A 0.081s 394 4.3%
A 0.111s 732 8.0%
A 0.141s 1189 13.0%
A 0.172s 1805 19.7%
A 0.202s 2465 26.9%
A 0.232s 3259 35.6%
A 0.263s 4164 45.5%
A 0.293s 5144 56.2%
A 0.323s 6016 65.7%
A 0.353s 6804 74.3%
A 0.384s 7457 81.5%
A 0.414s 8016 87.6%
A 0.444s 8479 92.6%
A 0.474s 8801 96.1%
A 0.505s 9027 98.6%
A 0.535s 9155 100.0%
B 0.020s 1 0.0%
B 0.050s 97 1.1%
B 0.081s 385 4.2%
B 0.111s 728 8.0%
B 0.141s 1197 13.1%
B 0.172s 1777 19.4%
B 0.202s 2465 26.9%
B 0.232s 3257 35.6%
B 0.262s 4165 45.5%
B 0.293s 5101 55.7%
B 0.323s 5992 65.5%
B 0.353s 6775 74.0%
B 0.383s 7435 81.2%
B 0.413s 8009 87.5%
B 0.444s 8443 92.2%
B 0.474s 8797 96.1%
B 0.504s 9028 98.6%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.050s 9057 98.9%
A 0.081s 8761 95.7%
A 0.111s 8403 91.8%
A 0.141s 7950 86.8%
A 0.171s 7353 80.3%
A 0.202s 6669 72.9%
A 0.232s 5868 64.1%
A 0.262s 4953 54.1%
A 0.293s 4015 43.9%
A 0.323s 3136 34.3%
A 0.353s 2355 25.7%
A 0.383s 1689 18.5%
A 0.414s 1130 12.3%
A 0.444s 688 7.5%
A 0.474s 345 3.8%
A 0.505s 122 1.3%
A 0.535s 12 0.1%
A 0.565s -7 0.0%
B 0.020s 9145 99.9%
B 0.050s 9040 98.8%
B 0.081s 8772 95.8%
B 0.111s 8438 92.2%
B 0.141s 7957 86.9%
B 0.172s 7380 80.6%
B 0.202s 6693 73.1%
B 0.232s 5896 64.4%
B 0.263s 4984 54.4%
B 0.293s 4050 44.2%
B 0.323s 3164 34.6%
B 0.354s 2384 26.0%
B 0.384s 1712 18.7%
B 0.414s 1141 12.5%
B 0.444s 696 7.6%
B 0.475s 356 3.9%
B 0.505s 128 1.4%
B 0.535s 13 0.1%
B 0.566s -5 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 0.535 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 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.11e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9229 IDLE
Wed May 27 16:48:33 SAST 2026 [elapsed=299 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
taking preflight exposures:
acam...OK
acam image:
124M May 27 16:48 /atlas/obs/03a/61188/03a61188e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed May 27 16:48:55 SAST 2026 [elapsed=321 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (8 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed May 27 16:48:55 SAST 2026 [elapsed=321 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61187.61731345|info|galildriver|using focus model: foc=9187+(4.30)*16.3+(-0.40)*60.2=9233.0
61187.61731869|info|galildriver|o 2 IN | cass: 3046882 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54005337 9230 um b=8f M [focus]
61187.61732930|info|galildriver|o 2 IN | cass: 3046883 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54005406 9230 um b=2f [cmd]
bestfocus for o...OK
Wed May 27 16:48:58 SAST 2026 [elapsed=324 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed May 27 16:49:28 SAST 2026 [elapsed=354 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 May 27 16:49:30 SAST 2026 [elapsed=356 sec] NOTICES: det_dzdx=-892 is outside range +-250 from -558; det_dzdy=2589 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 May 27 16:49:30 SAST 2026 [elapsed=356 sec] Happy observing!
Wed May 27 16:49:30 SAST 2026 [elapsed=356 sec] Preflight took 356 seconds to complete.
Wed May 27 16:49:30 SAST 2026 [elapsed=356 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 0.050s 121 1.3% A 0.081s 396 4.3% A 0.111s 749 8.2% A 0.141s 1214 13.3% A 0.171s 1803 19.7% A 0.201s 2491 27.2% A 0.232s 3294 36.0% A 0.262s 4204 45.9% A 0.292s 5134 56.1% A 0.322s 6025 65.8% A 0.352s 6776 74.0% A 0.383s 7433 81.2% A 0.413s 8006 87.5% A 0.443s 8458 92.4% A 0.474s 8801 96.1% A 0.504s 9028 98.6% A 0.534s 9138 99.8% A 0.564s 9153 100.0% B 0.020s 1 0.0% B 0.050s 119 1.3% B 0.081s 388 4.2% B 0.111s 741 8.1% B 0.141s 1218 13.3% B 0.171s 1793 19.6% B 0.202s 2464 26.9% B 0.232s 3295 36.0% B 0.262s 4168 45.5% B 0.292s 5103 55.7% B 0.323s 6015 65.7% B 0.353s 6770 74.0% B 0.383s 7441 81.3% B 0.413s 8018 87.6% B 0.444s 8457 92.4% B 0.474s 8796 96.1% B 0.504s 9022 98.6% B 0.534s 9139 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9049 98.9% A 0.081s 8778 95.9% A 0.111s 8421 92.0% A 0.141s 7959 86.9% A 0.172s 7382 80.6% A 0.202s 6692 73.1% A 0.232s 5896 64.4% A 0.262s 4983 54.4% A 0.293s 4039 44.1% A 0.323s 3168 34.6% A 0.353s 2384 26.0% A 0.383s 1709 18.7% A 0.414s 1147 12.5% A 0.444s 692 7.6% A 0.474s 359 3.9% A 0.504s 125 1.4% A 0.534s 12 0.1% A 0.565s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9018 98.5% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7950 86.8% B 0.171s 7377 80.6% B 0.202s 6688 73.1% B 0.232s 5891 64.4% B 0.262s 4981 54.4% B 0.292s 4052 44.3% B 0.322s 3162 34.5% B 0.353s 2392 26.1% B 0.383s 1704 18.6% B 0.413s 1147 12.5% B 0.443s 700 7.6% B 0.473s 365 4.0% B 0.504s 138 1.5% B 0.534s 16 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R