STH Recent Preflight: 61125
Executing preflight for 61125 at Wed Mar 25 17:44:01 SAST 2026.
Log can be found in /atlas/obs/03/61125/preflight.dat.
Setting donefile '/atlas/obs/03/61125/preflight_complete.20260325154401.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260325154401.15307.
Wed Mar 25 17:44:01 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Mar 25 17:44:01 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [432f9593-f23a-400a-b888-9866455f42ca;1800]
Wed Mar 25 17:44:01 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Mar 25 17:44:02 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Mar 25 17:44:02 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Mar 25 17:44:02 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Mar 25 17:44:02 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1774453433
OK
Wed Mar 25 17:44:02 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Mar 25 17:44:02 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 Mar 25 17:44:03 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
Wed Mar 25 17:44:04 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Mar 25 17:44:04 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Wed Mar 25 15:44:04 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 197 1024 377 0.987 -0.013 0.034
*metbox2.sth.atl .PPS. 1 u 897 1024 377 0.278 -0.068 0.062
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 482 1024 377 25.084 0.524 0.387
+ntp.as3741.net 146.64.8.7 2 u 215 1024 377 22.786 -0.105 0.212
-ntp2.as3741.net 155.232.19.6 2 u 923 1024 377 7.159 0.356 0.182
-ntp2.inx.net.za 210.182.58.253 2 u 11 1024 377 7.189 0.340 0.134
-102.222.100.153 155.232.19.7 2 u 297 1024 377 7.874 0.663 2.001
-ntp5.inx.net.za 183.3.52.101 2 u 370 1024 377 7.796 0.386 0.026
+flipping.cloudh 80.72.67.48 3 u 444 1024 377 8.147 -0.066 0.985
102.216.37.99 ( 210.182.58.253 2 u 51d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 108 1024 377 23.548 0.299 0.329
Wed Mar 25 17:44:06 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6261GB)
200GB available in /atlas/red...OK (9371GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.3T 6.0T 42% /
admin:/dev/loop1 105M 105M 0 100% /snap/core/17272
admin:/dev/loop2 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 117G 21G 91G 19% /
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
archon:/dev/loop2 105M 105M 0 100% /snap/core/17272
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
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 4.5T 9.0T 34% /
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/md0p1 15T 1.7T 12T 13% /
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 735G 13T 6% /
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
Wed Mar 25 17:44:06 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
Wed Mar 25 17:44:06 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Wed Mar 25 17:44:06 SAST 2026 [elapsed=5 sec] SERVICES2
Wed Mar 25 17:44:06 SAST 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Mar 25 17:44:10 SAST 2026 [elapsed=9 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= 908kB time=00:00:29.05 bitrate= 256.0kbits/s speed=1.47e+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 Mar 25 17:47:12 SAST 2026 [elapsed=191 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: 78.64 -29.49, az/alt=324.65 +86.49 idle(e) IDLE
Wed Mar 25 17:48:10 SAST 2026 [elapsed=249 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Mar 25 17:48:31 SAST 2026 [elapsed=270 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=32995.3 IDLE
Wed Mar 25 17:48:31 SAST 2026 [elapsed=270 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.9C)
Checking CCD plane: Z0=+1760.00 DZDX=-896.00 DZDY=+3526.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Mar 25 17:48:31 SAST 2026 [elapsed=270 sec] WEATHER
status weather: W 20.3C 19% 32/44kph@318 DP20.1C/-147C/d IDLE
...OK
Wed Mar 25 17:48:32 SAST 2026 [elapsed=271 sec] MET
status...OK
met: c=N o=Y Ro1d Co15h Wo5d Ho11h To85d Do22h IDLE
Wed Mar 25 17:48:32 SAST 2026 [elapsed=271 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Mar 25 17:48:32 SAST 2026 [elapsed=271 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 107.57 -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 -1 -0.0mm 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 111 1.2%
A 0.081s 393 4.3%
A 0.111s 745 8.1%
A 0.141s 1208 13.2%
A 0.172s 1802 19.7%
A 0.202s 2490 27.2%
A 0.232s 3288 35.9%
A 0.262s 4193 45.8%
A 0.293s 5146 56.2%
A 0.323s 6018 65.7%
A 0.353s 6801 74.3%
A 0.383s 7460 81.5%
A 0.414s 8017 87.6%
A 0.444s 8478 92.6%
A 0.474s 8800 96.1%
A 0.505s 9021 98.5%
A 0.535s 9154 100.0%
B 0.020s 1 0.0%
B 0.051s 99 1.1%
B 0.081s 385 4.2%
B 0.111s 727 7.9%
B 0.142s 1215 13.3%
B 0.172s 1797 19.6%
B 0.202s 2465 26.9%
B 0.232s 3285 35.9%
B 0.263s 4198 45.9%
B 0.293s 5131 56.1%
B 0.323s 5990 65.4%
B 0.354s 6775 74.0%
B 0.384s 7456 81.5%
B 0.414s 8026 87.7%
B 0.445s 8467 92.5%
B 0.475s 8806 96.2%
B 0.505s 9034 98.7%
B 0.535s 9143 99.9%
B 0.566s 9160 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.050s 9056 98.9%
A 0.081s 8760 95.7%
A 0.111s 8402 91.8%
A 0.141s 7951 86.9%
A 0.171s 7352 80.3%
A 0.202s 6670 72.9%
A 0.232s 5897 64.4%
A 0.262s 4953 54.1%
A 0.292s 4015 43.9%
A 0.323s 3139 34.3%
A 0.353s 2376 26.0%
A 0.383s 1689 18.5%
A 0.413s 1148 12.5%
A 0.444s 684 7.5%
A 0.474s 346 3.8%
A 0.504s 124 1.4%
A 0.535s 10 0.1%
A 0.565s -5 0.0%
B 0.020s 9147 99.9%
B 0.050s 9040 98.8%
B 0.081s 8780 95.9%
B 0.111s 8437 92.2%
B 0.141s 7973 87.1%
B 0.172s 7398 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 3193 34.9%
B 0.353s 2407 26.3%
B 0.383s 1735 19.0%
B 0.414s 1156 12.6%
B 0.444s 710 7.8%
B 0.474s 365 4.0%
B 0.505s 133 1.5%
B 0.535s 16 0.2%
B 0.565s -6 0.0%
A 1 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 100.0 percent in 0.566 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= 228kB time=00:00:07.29 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=9245 IDLE
Wed Mar 25 17:49:17 SAST 2026 [elapsed=316 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=32995.3 IDLE
taking preflight exposures:
acam...OK
acam image:
126M Mar 25 17:49 /atlas/obs/03a/61125/03a61125e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Mar 25 17:49:40 SAST 2026 [elapsed=339 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (53 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Mar 25 17:49:40 SAST 2026 [elapsed=339 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61124.65949518|info|galildriver|using focus model: foc=9187+(4.30)*20.1+(-0.40)*60.2=9249.3
61124.65950043|info|galildriver|o 2 IN | cass: 3047860 15.24 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54008448 9245 um b=8f M [focus]
61124.65951103|info|galildriver|o 2 IN | cass: 3047863 15.24 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54008520 9246 um b=2f [cmd]
bestfocus for o...OK
Wed Mar 25 17:49:42 SAST 2026 [elapsed=341 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Mar 25 17:50:11 SAST 2026 [elapsed=370 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 Mar 25 17:50:12 SAST 2026 [elapsed=371 sec] NOTICES: det_dzdx=-896 is outside range +-250 from -558; det_dzdy=3526 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 Mar 25 17:50:12 SAST 2026 [elapsed=371 sec] Happy observing!
Wed Mar 25 17:50:12 SAST 2026 [elapsed=371 sec] Preflight took 371 seconds to complete.
Wed Mar 25 17:50:12 SAST 2026 [elapsed=371 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 109 1.2% A 0.081s 372 4.1% A 0.111s 718 7.8% A 0.141s 1180 12.9% A 0.171s 1759 19.2% A 0.202s 2442 26.7% A 0.232s 3238 35.4% A 0.262s 4143 45.3% A 0.292s 5078 55.5% A 0.323s 5962 65.1% A 0.353s 6758 73.8% A 0.383s 7412 81.0% A 0.413s 7990 87.3% A 0.443s 8446 92.3% A 0.474s 8777 95.9% A 0.504s 9024 98.6% A 0.534s 9138 99.8% A 0.564s 9152 100.0% B 0.020s 0 0.0% B 0.050s 120 1.3% B 0.081s 389 4.2% B 0.111s 741 8.1% B 0.141s 1218 13.3% B 0.171s 1794 19.6% B 0.202s 2490 27.2% B 0.232s 3294 36.0% B 0.262s 4199 45.9% B 0.292s 5133 56.1% B 0.323s 6015 65.7% B 0.353s 6794 74.2% B 0.383s 7460 81.5% 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 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9149 99.9% A 0.050s 9046 98.8% A 0.081s 8776 95.9% A 0.111s 8422 92.0% A 0.141s 7958 86.9% A 0.171s 7378 80.6% A 0.202s 6687 73.1% A 0.232s 5896 64.4% A 0.262s 4975 54.3% A 0.293s 4036 44.1% A 0.323s 3165 34.6% A 0.353s 2381 26.0% A 0.383s 1715 18.7% A 0.414s 1143 12.5% A 0.444s 693 7.6% A 0.474s 358 3.9% A 0.504s 123 1.3% A 0.535s 15 0.2% A 0.565s 4 0.0% B 0.020s 9142 99.9% B 0.050s 9014 98.5% B 0.081s 8769 95.8% B 0.111s 8420 92.0% B 0.141s 7949 86.8% B 0.171s 7374 80.6% B 0.201s 6685 73.0% B 0.232s 5890 64.3% B 0.262s 4980 54.4% B 0.292s 4052 44.3% B 0.322s 3160 34.5% B 0.353s 2390 26.1% B 0.383s 1706 18.6% B 0.413s 1150 12.6% B 0.443s 701 7.7% B 0.474s 357 3.9% B 0.504s 132 1.4% B 0.534s 16 0.2% B 0.564s 1 0.0% A -1 -0.0mm 15 N F R | B 2 0.1mm 15 N F R