STH Recent Preflight: 61241
Executing preflight for 61241 at Sun Jul 19 16:54:30 SAST 2026.
Log can be found in /atlas/obs/03/61241/preflight.dat.
Setting donefile '/atlas/obs/03/61241/preflight_complete.20260719145430.20850' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260719145430.20850.
Sun Jul 19 16:54:30 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Jul 19 16:54:30 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [6e6e32cc-e0f0-41b8-92e8-d1b64f7a4bab;1800]
Sun Jul 19 16:54:30 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun Jul 19 16:54:31 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun Jul 19 16:54:31 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sun Jul 19 16:54:31 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun Jul 19 16:54:31 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1784472871
OK
Sun Jul 19 16:54:31 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun Jul 19 16:54:31 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
Sun Jul 19 16:54:32 SAST 2026 [elapsed=2 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
Sun Jul 19 16:54:33 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sun Jul 19 16:54:33 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sun Jul 19 14:54:33 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 34 1024 377 1.067 0.211 0.129
*metbox2.sth.atl .PPS. 1 u 250 1024 377 0.239 0.238 2.026
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-146.64.24.58 155.232.19.6 2 u 150 1024 377 23.233 0.658 0.446
+ntp.as3741.net 146.64.58.41 2 u 1042 1024 377 22.957 0.159 0.272
+ntp2.as3741.net 129.134.28.123 2 u 152 1024 377 7.257 0.249 0.237
-ntp2.inx.net.za 210.182.58.253 2 u 48 1024 377 7.285 0.278 0.395
-ntp5.inx.net.za 102.176.229.251 2 u 150 1024 377 7.543 0.112 0.109
#102.222.156.151 196.21.187.2 2 u 178 1024 377 24.660 1.033 0.948
-ntp2.nog.net.za 80.72.67.48 3 u 136 1024 377 7.506 0.264 0.236
-139.84.231.68 ( 196.21.187.2 2 u 969 1024 377 22.777 0.065 0.240
-ntp8.inx.net.za 183.3.52.101 2 u 178 1024 377 16.857 0.115 0.230
Sun Jul 19 16:54:36 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (5883GB)
200GB available in /atlas/red...OK (9041GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.6T 5.7T 46% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 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 4.8T 8.7T 36% /
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/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 736G 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/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17292
Sun Jul 19 16:54:36 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
Sun Jul 19 16:54:36 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Sun Jul 19 16:54:36 SAST 2026 [elapsed=6 sec] SERVICES2
Sun Jul 19 16:54:36 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Jul 19 16:54:40 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= 932kB time=00:00:29.82 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/CLOSED (0%) IDLE
Sun Jul 19 16:57:56 SAST 2026 [elapsed=206 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: 180.60 -29.49, az/alt=324.74 +86.49 idle(e) IDLE
Sun Jul 19 16:58:47 SAST 2026 [elapsed=257 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Jul 19 16:59:06 SAST 2026 [elapsed=276 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=12398.8 IDLE
Sun Jul 19 16:59:06 SAST 2026 [elapsed=276 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (5 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.6C)
Checking CCD plane: Z0=+1710.00 DZDX=-882.00 DZDY=+2406.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Jul 19 16:59:06 SAST 2026 [elapsed=276 sec] WEATHER
status weather: W 10.3C 39% 39/47kph@313 DP9.4C/-189C/d IDLE
...OK
Sun Jul 19 16:59:07 SAST 2026 [elapsed=277 sec] MET
status...OK
met: c=N o=N Ro20d Co2d Ws0 Ho6d To31d Do5d wait W IDLE
Sun Jul 19 16:59:07 SAST 2026 [elapsed=277 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Jul 19 16:59:07 SAST 2026 [elapsed=277 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 209.52 -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 0.051s 114 1.2%
A 0.081s 413 4.5%
A 0.112s 758 8.3%
A 0.142s 1224 13.4%
A 0.172s 1823 19.9%
A 0.203s 2515 27.5%
A 0.233s 3315 36.2%
A 0.264s 4223 46.1%
A 0.294s 5176 56.5%
A 0.324s 6073 66.3%
A 0.355s 6848 74.8%
A 0.385s 7497 81.9%
A 0.415s 8049 87.9%
A 0.446s 8502 92.9%
A 0.476s 8820 96.4%
A 0.507s 9038 98.7%
A 0.537s 9156 100.0%
B 0.020s 1 0.0%
B 0.051s 105 1.1%
B 0.081s 392 4.3%
B 0.112s 739 8.1%
B 0.142s 1215 13.3%
B 0.172s 1797 19.6%
B 0.202s 2489 27.2%
B 0.233s 3285 35.9%
B 0.263s 4197 45.8%
B 0.294s 5160 56.4%
B 0.324s 6050 66.1%
B 0.355s 6818 74.5%
B 0.385s 7476 81.7%
B 0.415s 8043 87.9%
B 0.446s 8480 92.6%
B 0.476s 8817 96.3%
B 0.507s 9044 98.8%
B 0.537s 9150 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9065 99.0%
A 0.081s 8773 95.8%
A 0.111s 8414 91.9%
A 0.142s 7953 86.9%
A 0.172s 7351 80.3%
A 0.202s 6670 72.9%
A 0.233s 5870 64.1%
A 0.263s 4951 54.1%
A 0.293s 4015 43.9%
A 0.324s 3138 34.3%
A 0.354s 2352 25.7%
A 0.385s 1688 18.4%
A 0.415s 1130 12.3%
A 0.445s 684 7.5%
A 0.476s 345 3.8%
A 0.506s 119 1.3%
A 0.536s 9 0.1%
B 0.020s 9146 99.9%
B 0.051s 9033 98.7%
B 0.081s 8774 95.8%
B 0.111s 8423 92.0%
B 0.142s 7957 86.9%
B 0.172s 7381 80.6%
B 0.203s 6693 73.1%
B 0.233s 5897 64.4%
B 0.263s 4984 54.4%
B 0.294s 4051 44.3%
B 0.324s 3163 34.6%
B 0.354s 2361 25.8%
B 0.385s 1692 18.5%
B 0.415s 1123 12.3%
B 0.446s 684 7.5%
B 0.476s 347 3.8%
B 0.506s 121 1.3%
B 0.537s 11 0.1%
B 0.567s -4 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 100.0 percent in 0.537 seconds.
Shutter B opened to 100.0 percent in 0.537 seconds.
Shutter A closed to 0.1 percent in 0.536 seconds.
Shutter B closed to 0.0 percent in 0.567 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed= 895x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9229 IDLE
Sun Jul 19 16:59:43 SAST 2026 [elapsed=313 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=12398.8 IDLE
taking preflight exposures:
acam...OK
acam image:
123M Jul 19 17:00 /atlas/obs/03a/61241/03a61241e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Jul 19 17:00:05 SAST 2026 [elapsed=335 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (16 seconds old)
OTA humidity level...OK (21%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Jul 19 17:00:05 SAST 2026 [elapsed=335 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61240.62506765|info|galildriver|using focus model: foc=9187+(4.30)*15.1+(-0.40)*60.1=9227.9
61240.62507233|info|galildriver|o 2 IN | cass: 3045356 15.23 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005314 9230 um b=0f [cmd]
bestfocus for o...OK
Sun Jul 19 17:00:07 SAST 2026 [elapsed=337 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Jul 19 17:00:33 SAST 2026 [elapsed=363 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
Sun Jul 19 17:00:34 SAST 2026 [elapsed=364 sec] NOTICES: det_dzdx=-882 is outside range +-250 from -558; det_dzdy=2406 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sun Jul 19 17:00:34 SAST 2026 [elapsed=364 sec] Happy observing!
Sun Jul 19 17:00:34 SAST 2026 [elapsed=364 sec] Preflight took 364 seconds to complete.
Sun Jul 19 17:00:34 SAST 2026 [elapsed=364 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 114 1.2% A 0.081s 385 4.2% A 0.111s 737 8.1% A 0.141s 1197 13.1% A 0.171s 1783 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.262s 4175 45.6% A 0.292s 5103 55.7% A 0.323s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7433 81.2% A 0.413s 8005 87.4% A 0.444s 8458 92.4% A 0.474s 8792 96.0% A 0.504s 9027 98.6% A 0.534s 9137 99.8% A 0.564s 9153 100.0% B 0.020s 0 0.0% B 0.050s 113 1.2% B 0.080s 379 4.1% B 0.111s 727 7.9% B 0.141s 1184 12.9% B 0.171s 1752 19.1% B 0.201s 2440 26.7% B 0.232s 3239 35.4% B 0.262s 4138 45.2% B 0.292s 5072 55.4% B 0.322s 5960 65.1% B 0.352s 6747 73.7% B 0.383s 7420 81.1% B 0.413s 7986 87.2% B 0.443s 8444 92.2% B 0.473s 8786 96.0% B 0.503s 9012 98.4% B 0.533s 9134 99.8% B 0.564s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7959 86.9% A 0.172s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5894 64.4% A 0.262s 4981 54.4% A 0.292s 4039 44.1% A 0.323s 3166 34.6% A 0.353s 2387 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.444s 693 7.6% A 0.474s 357 3.9% A 0.504s 126 1.4% A 0.534s 13 0.1% A 0.565s 1 0.0% B 0.020s 9143 99.9% B 0.051s 9020 98.5% B 0.081s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.171s 7379 80.6% B 0.202s 6689 73.1% B 0.232s 5893 64.4% B 0.262s 4981 54.4% B 0.292s 4054 44.3% B 0.323s 3162 34.5% B 0.353s 2392 26.1% B 0.383s 1706 18.6% B 0.413s 1146 12.5% B 0.444s 700 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.565s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R