STH Recent Preflight: 61131
Executing preflight for 61131 at Tue Mar 31 17:36:15 SAST 2026.
Log can be found in /atlas/obs/03/61131/preflight.dat.
Setting donefile '/atlas/obs/03/61131/preflight_complete.20260331153615.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260331153615.15307.
Tue Mar 31 17:36:15 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Mar 31 17:36:15 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [07b70880-b326-49b2-97e2-451e69ac11c4;1800]
Tue Mar 31 17:36:15 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Mar 31 17:36:16 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Mar 31 17:36:16 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Mar 31 17:36:16 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Mar 31 17:36:16 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1774971366
OK
Tue Mar 31 17:36:16 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Mar 31 17:36:16 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
Tue Mar 31 17:36:18 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
Tue Mar 31 17:36:18 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Mar 31 17:36:18 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Mar 31 15:36:18 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 598 1024 377 1.033 0.056 0.457
+metbox2.sth.atl .PPS. 1 u 1067 1024 377 0.243 0.033 0.171
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 155.232.19.6 2 u 462 1024 377 25.093 0.349 0.404
+ntp.as3741.net 146.64.8.7 2 u 763 1024 377 22.729 -0.069 0.149
+ntp2.as3741.net 155.232.19.6 2 u 984 1024 377 7.249 0.325 0.235
-ntp2.inx.net.za 183.3.52.101 2 u 264 1024 377 7.235 0.617 0.163
+102.222.100.153 155.232.19.6 2 u 507 1024 377 7.860 0.141 0.717
-ntp5.inx.net.za 183.3.52.101 2 u 783 1024 377 7.913 0.458 0.098
+flipping.cloudh 80.72.67.48 3 u 570 1024 377 7.467 0.167 0.191
102.216.37.99 ( 210.182.58.253 2 u 57d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 1058 1024 377 23.542 1.653 0.580
Tue Mar 31 17:36:20 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6120GB)
200GB available in /atlas/red...OK (8946GB)
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/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 4.9T 8.6T 37% /
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
Tue Mar 31 17:36:20 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
Tue Mar 31 17:36:20 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Tue Mar 31 17:36:21 SAST 2026 [elapsed=6 sec] SERVICES2
Tue Mar 31 17:36:21 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Mar 31 17:36:25 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= 912kB time=00:00:29.18 bitrate= 256.0kbits/s speed=1.48e+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
Tue Mar 31 17:38:59 SAST 2026 [elapsed=164 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: 82.49 -29.49, az/alt=324.69 +86.49 idle(e) IDLE
Tue Mar 31 17:39:55 SAST 2026 [elapsed=220 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Mar 31 17:40:16 SAST 2026 [elapsed=241 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=45.7 IDLE
Tue Mar 31 17:40:16 SAST 2026 [elapsed=241 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (10 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.7C)
Checking CCD plane: Z0=+1780.00 DZDX=-896.00 DZDY=+4028.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Mar 31 17:40:16 SAST 2026 [elapsed=241 sec] WEATHER
status weather: W 24.9C 24% 38/43kph@324 DP20.2C/-50C/d IDLE
...OK
Tue Mar 31 17:40:16 SAST 2026 [elapsed=241 sec] MET
status...OK
met: c=N o=N Ro3d Co3d Ws3 Ho3d To3d Do3d wait W IDLE
Tue Mar 31 17:40:16 SAST 2026 [elapsed=241 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Mar 31 17:40:16 SAST 2026 [elapsed=241 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 111.41 -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 394 4.3%
A 0.111s 733 8.0%
A 0.141s 1191 13.0%
A 0.172s 1783 19.5%
A 0.202s 2464 26.9%
A 0.232s 3261 35.6%
A 0.263s 4163 45.5%
A 0.293s 5114 55.9%
A 0.323s 5992 65.5%
A 0.353s 6778 74.0%
A 0.384s 7439 81.3%
A 0.414s 8001 87.4%
A 0.444s 8464 92.5%
A 0.474s 8790 96.0%
A 0.505s 9022 98.6%
A 0.535s 9150 100.0%
B 0.020s 1 0.0%
B 0.050s 90 1.0%
B 0.081s 387 4.2%
B 0.111s 726 7.9%
B 0.141s 1198 13.1%
B 0.172s 1758 19.2%
B 0.202s 2465 26.9%
B 0.233s 3257 35.6%
B 0.263s 4168 45.5%
B 0.293s 5103 55.7%
B 0.324s 5991 65.4%
B 0.354s 6775 74.0%
B 0.384s 7436 81.2%
B 0.415s 8010 87.5%
B 0.445s 8454 92.4%
B 0.475s 8796 96.1%
B 0.506s 9026 98.6%
B 0.536s 9142 99.9%
B 0.566s 9158 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9055 98.9%
A 0.082s 8759 95.7%
A 0.114s 8364 91.4%
A 0.145s 7898 86.3%
A 0.175s 7288 79.6%
A 0.205s 6597 72.1%
A 0.235s 5785 63.2%
A 0.266s 4859 53.1%
A 0.296s 3927 42.9%
A 0.326s 3058 33.4%
A 0.356s 2283 24.9%
A 0.387s 1632 17.8%
A 0.417s 1084 11.8%
A 0.447s 647 7.1%
A 0.478s 321 3.5%
A 0.508s 109 1.2%
A 0.538s 5 0.1%
B 0.020s 9146 99.9%
B 0.050s 9034 98.7%
B 0.081s 8778 95.9%
B 0.111s 8422 92.0%
B 0.141s 7971 87.1%
B 0.171s 7378 80.6%
B 0.202s 6694 73.1%
B 0.232s 5924 64.7%
B 0.262s 5015 54.8%
B 0.293s 4051 44.3%
B 0.323s 3165 34.6%
B 0.353s 2384 26.0%
B 0.383s 1735 19.0%
B 0.414s 1156 12.6%
B 0.444s 711 7.8%
B 0.474s 366 4.0%
B 0.504s 134 1.5%
B 0.535s 16 0.2%
B 0.565s -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 100.0 percent in 0.566 seconds.
Shutter A closed to 0.1 percent in 0.538 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=1.11e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9258 IDLE
Tue Mar 31 17:41:12 SAST 2026 [elapsed=297 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=45.7 IDLE
taking preflight exposures:
acam...OK
acam image:
126M Mar 31 17:41 /atlas/obs/03a/61131/03a61131e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Mar 31 17:41:34 SAST 2026 [elapsed=319 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (17 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Mar 31 17:41:34 SAST 2026 [elapsed=319 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61130.65387468|info|galildriver|using focus model: foc=9187+(4.30)*23.0+(-0.40)*60.2=9261.8
61130.65387992|info|galildriver|o 2 IN | cass: 3045598 15.23 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54011085 9259 um b=8f M [focus]
61130.65389052|info|galildriver|o 2 IN | cass: 3045598 15.23 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54011130 9259 um b=2f [cmd]
bestfocus for o...OK
Tue Mar 31 17:41:37 SAST 2026 [elapsed=322 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Mar 31 17:42:07 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
Tue Mar 31 17:42:08 SAST 2026 [elapsed=353 sec] NOTICES: det_dzdx=-896 is outside range +-250 from -558; det_dzdy=4028 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Tue Mar 31 17:42:08 SAST 2026 [elapsed=353 sec] Happy observing!
Tue Mar 31 17:42:08 SAST 2026 [elapsed=353 sec] Preflight took 353 seconds to complete.
Tue Mar 31 17:42:08 SAST 2026 [elapsed=353 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 117 1.3% A 0.081s 382 4.2% A 0.111s 718 7.8% A 0.141s 1181 12.9% A 0.171s 1758 19.2% A 0.202s 2441 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.292s 5077 55.5% A 0.322s 5963 65.1% A 0.353s 6757 73.8% A 0.383s 7411 81.0% A 0.413s 7991 87.3% A 0.444s 8446 92.3% A 0.474s 8779 95.9% A 0.504s 9024 98.6% A 0.534s 9138 99.8% A 0.565s 9152 100.0% B 0.020s 0 0.0% B 0.050s 104 1.1% B 0.081s 369 4.0% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1752 19.1% B 0.201s 2443 26.7% B 0.232s 3240 35.4% B 0.262s 4135 45.2% B 0.292s 5073 55.4% B 0.322s 5960 65.1% B 0.353s 6750 73.7% B 0.383s 7420 81.1% B 0.413s 7984 87.2% B 0.443s 8444 92.2% B 0.473s 8786 96.0% B 0.504s 9016 98.5% B 0.534s 9135 99.8% B 0.564s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9148 99.9% A 0.050s 9043 98.8% A 0.081s 8775 95.9% A 0.111s 8422 92.0% A 0.141s 7959 86.9% A 0.172s 7378 80.6% A 0.202s 6686 73.0% A 0.232s 5869 64.1% A 0.262s 4975 54.3% A 0.292s 4038 44.1% A 0.323s 3165 34.6% A 0.353s 2380 26.0% A 0.383s 1715 18.7% A 0.413s 1141 12.5% A 0.444s 693 7.6% A 0.474s 359 3.9% A 0.504s 122 1.3% A 0.534s 15 0.2% A 0.565s 3 0.0% B 0.020s 9143 99.9% B 0.050s 9017 98.5% B 0.081s 8770 95.8% B 0.111s 8419 92.0% B 0.141s 7950 86.8% B 0.171s 7379 80.6% B 0.202s 6687 73.1% B 0.232s 5892 64.4% B 0.262s 4979 54.4% B 0.292s 4052 44.3% B 0.323s 3164 34.6% B 0.353s 2393 26.1% B 0.383s 1701 18.6% B 0.413s 1163 12.7% B 0.443s 699 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 16 0.2% B 0.565s 1 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R