STH Recent Preflight: 61283
Executing preflight for 61283 at Sun Aug 30 17:21:13 SAST 2026.
Log can be found in /atlas/obs/03/61283/preflight.dat.
Setting donefile '/atlas/obs/03/61283/preflight_complete.20260830152113.30267' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260830152113.30267.
Sun Aug 30 17:21:14 SAST 2026 [elapsed=1 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Aug 30 17:21:14 SAST 2026 [elapsed=1 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [675f3333-ad65-4b1d-b408-e3f905f13051;1800]
Sun Aug 30 17:21:14 SAST 2026 [elapsed=1 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun Aug 30 17:21:14 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun Aug 30 17:21:14 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sun Aug 30 17:21:14 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun Aug 30 17:21:14 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1788103271
OK
Sun Aug 30 17:21:14 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun Aug 30 17:21:14 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 Aug 30 17:21:16 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
Sun Aug 30 17:21:16 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sun Aug 30 17:21:16 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sun Aug 30 15:21:16 UTC 2026
metbox: 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 680 1024 363 0.987 -0.023 0.069
*metbox2.sth.atl .PPS. 1 u 304 1024 377 0.291 -0.063 0.096
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 731 1024 377 23.283 0.765 0.554
+ntp.as3741.net 146.64.58.41 2 u 225 1024 377 22.786 -0.043 0.790
+ntp2.as3741.net 146.64.58.41 2 u 180 1024 377 7.267 -0.121 0.189
+ntp2.inx.net.za 183.3.52.101 2 u 488 1024 377 7.318 0.018 0.087
+ntp5.inx.net.za 210.182.58.253 2 u 921 1024 377 7.618 -0.012 2.568
#102.222.156.151 196.21.187.2 2 u 44 1024 377 24.675 0.263 0.854
+ntp2.nog.net.za 80.72.67.48 3 u 585 1024 377 7.554 0.017 0.126
-139.84.231.68 ( 196.21.187.2 2 u 18 1024 377 26.798 1.542 3.155
-ntp8.inx.net.za 183.3.52.101 2 u 86 1024 377 16.890 -0.068 10.620
Sun Aug 30 17:21:19 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (4707GB)
200GB available in /atlas/red...OK (7835GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.8T 4.5T 57% /
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 5.9T 7.5T 45% /
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 738G 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 Aug 30 17:21:19 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 Aug 30 17:21:19 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Sun Aug 30 17:21:19 SAST 2026 [elapsed=6 sec] SERVICES2
Sun Aug 30 17:21:19 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Aug 30 17:21:23 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=1.56e+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 Aug 30 17:24:36 SAST 2026 [elapsed=203 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: 228.69 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Sun Aug 30 17:25:27 SAST 2026 [elapsed=254 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Aug 30 17:25:46 SAST 2026 [elapsed=273 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Sun Aug 30 17:25:46 SAST 2026 [elapsed=273 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 (-54.5C)
Checking CCD plane: Z0=+1728.00 DZDX=-893.00 DZDY=+2803.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Aug 30 17:25:46 SAST 2026 [elapsed=273 sec] WEATHER
status weather: clear 12.7C 56% 13/20kph@185 DP7.9C/-25C/d IDLE
...OK
Sun Aug 30 17:25:47 SAST 2026 [elapsed=274 sec] MET
status...OK
met: c=N o=Y Ro1d Co7h Wo1d Ho6h To73d Do19h IDLE
Sun Aug 30 17:25:48 SAST 2026 [elapsed=275 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Aug 30 17:25:48 SAST 2026 [elapsed=275 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 257.60 -14.64, 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 113 1.2%
A 0.081s 402 4.4%
A 0.111s 746 8.1%
A 0.141s 1207 13.2%
A 0.172s 1804 19.7%
A 0.202s 2490 27.2%
A 0.232s 3286 35.9%
A 0.263s 4194 45.8%
A 0.293s 5145 56.2%
A 0.323s 6045 66.0%
A 0.354s 6826 74.6%
A 0.384s 7478 81.7%
A 0.414s 8032 87.7%
A 0.445s 8491 92.8%
A 0.475s 8810 96.2%
A 0.505s 9033 98.7%
A 0.535s 9155 100.0%
B 0.020s 1 0.0%
B 0.050s 104 1.1%
B 0.081s 394 4.3%
B 0.111s 738 8.1%
B 0.141s 1216 13.3%
B 0.172s 1797 19.6%
B 0.202s 2491 27.2%
B 0.232s 3285 35.9%
B 0.263s 4198 45.9%
B 0.293s 5131 56.1%
B 0.323s 6020 65.8%
B 0.353s 6795 74.2%
B 0.384s 7456 81.5%
B 0.414s 8026 87.7%
B 0.444s 8468 92.5%
B 0.475s 8807 96.2%
B 0.505s 9033 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.050s 9058 99.0%
A 0.081s 8761 95.7%
A 0.111s 8402 91.8%
A 0.141s 7952 86.9%
A 0.172s 7351 80.3%
A 0.202s 6670 72.9%
A 0.232s 5871 64.1%
A 0.262s 4982 54.4%
A 0.293s 4015 43.9%
A 0.323s 3137 34.3%
A 0.353s 2352 25.7%
A 0.384s 1690 18.5%
A 0.414s 1130 12.3%
A 0.444s 685 7.5%
A 0.475s 345 3.8%
A 0.505s 124 1.4%
A 0.535s 12 0.1%
A 0.566s -6 0.0%
B 0.020s 9146 99.9%
B 0.051s 9034 98.7%
B 0.081s 8773 95.8%
B 0.111s 8424 92.0%
B 0.141s 7957 86.9%
B 0.172s 7381 80.6%
B 0.202s 6693 73.1%
B 0.232s 5896 64.4%
B 0.263s 4984 54.4%
B 0.293s 4052 44.3%
B 0.323s 3162 34.5%
B 0.353s 2383 26.0%
B 0.384s 1714 18.7%
B 0.414s 1141 12.5%
B 0.444s 697 7.6%
B 0.475s 356 3.9%
B 0.505s 127 1.4%
B 0.535s 12 0.1%
B 0.565s -5 0.0%
A 0 0.0mm 15 N F R | B -5 -0.2mm 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 0.566 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=1.03e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9226 IDLE
Sun Aug 30 17:26:25 SAST 2026 [elapsed=312 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
taking preflight exposures:
acam...OK
acam image:
124M Aug 30 17:26 /atlas/obs/03a/61283/03a61283e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Aug 30 17:26:48 SAST 2026 [elapsed=335 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (58 seconds old)
OTA humidity level...WARNING (25%)
WARNING (OTA humidity > 25 (25%); )
Dome humidity exists...OK
Dome humidity is current... OK
Sun Aug 30 17:26:48 SAST 2026 [elapsed=335 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61282.64361948|info|galildriver|using focus model: foc=9187+(4.30)*16.9+(-0.40)*60.2=9235.6
61282.64362484|info|galildriver|o 2 IN | cass: 3039715 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004683 9227 um b=8f M [focus]
61282.64363056|info|galildriver|o 2 IN | cass: 3039716 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004693 9227 um b=8f M [focus]
61282.64363395|info|galildriver|o 2 IN | cass: 3039718 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004654 9226 um b=8f M [focus]
61282.64364211|info|galildriver|o 2 IN | cass: 3039714 15.20 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004683 9227 um b=0f [cmd]
bestfocus for o...OK
Sun Aug 30 17:26:51 SAST 2026 [elapsed=338 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Aug 30 17:27:17 SAST 2026 [elapsed=364 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 Aug 30 17:27:18 SAST 2026 [elapsed=365 sec] NOTICES: det_dzdx=-893 is outside range +-250 from -558; det_dzdy=2803 is outside range +-250 from -1915;
Sun Aug 30 17:27:18 SAST 2026 [elapsed=365 sec] WARNINGS: OTA humidity > 25 (25%);
Preflight completed with warnings. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sun Aug 30 17:27:18 SAST 2026 [elapsed=365 sec] Happy observing!
Sun Aug 30 17:27:18 SAST 2026 [elapsed=365 sec] Preflight took 364 seconds to complete.
Sun Aug 30 17:27:18 SAST 2026 [elapsed=365 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 384 4.2% A 0.111s 735 8.0% A 0.141s 1197 13.1% A 0.171s 1781 19.5% A 0.202s 2466 26.9% A 0.232s 3267 35.7% A 0.262s 4173 45.6% A 0.292s 5104 55.8% A 0.322s 5998 65.5% A 0.353s 6774 74.0% A 0.383s 7414 81.0% A 0.413s 7988 87.3% A 0.443s 8456 92.4% A 0.474s 8784 96.0% A 0.504s 9022 98.6% A 0.534s 9138 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.051s 111 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1203 13.1% B 0.172s 1772 19.4% B 0.202s 2466 26.9% B 0.232s 3268 35.7% B 0.262s 4168 45.5% B 0.292s 5103 55.7% B 0.323s 5989 65.4% B 0.353s 6770 74.0% B 0.383s 7441 81.3% B 0.413s 8000 87.4% B 0.444s 8457 92.4% B 0.474s 8796 96.1% B 0.504s 9024 98.6% B 0.534s 9136 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.051s 9051 98.9% A 0.081s 8778 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.171s 7401 80.8% A 0.202s 6691 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.293s 4038 44.1% A 0.323s 3166 34.6% A 0.353s 2387 26.1% A 0.383s 1731 18.9% A 0.414s 1163 12.7% A 0.444s 706 7.7% A 0.474s 367 4.0% A 0.504s 130 1.4% A 0.534s 15 0.2% A 0.565s 0 0.0% B 0.020s 9145 99.9% B 0.050s 9020 98.5% B 0.081s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7953 86.9% B 0.172s 7397 80.8% B 0.202s 6713 73.3% B 0.232s 5921 64.7% B 0.262s 5012 54.8% B 0.292s 4084 44.6% B 0.323s 3189 34.8% B 0.353s 2417 26.4% B 0.383s 1725 18.8% B 0.413s 1163 12.7% B 0.444s 712 7.8% B 0.474s 366 4.0% B 0.504s 137 1.5% B 0.534s 16 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R