STH Recent Preflight: 61132
Executing preflight for 61132 at Wed Apr 1 17:34:54 SAST 2026.
Log can be found in /atlas/obs/03/61132/preflight.dat.
Setting donefile '/atlas/obs/03/61132/preflight_complete.20260401153454.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260401153454.15307.
Wed Apr 1 17:34:54 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Apr 1 17:34:54 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [ca3d6b86-4a6b-4cc4-9e55-2efd7f6e6681;1800]
Wed Apr 1 17:34:54 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Apr 1 17:34:55 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Apr 1 17:34:55 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Apr 1 17:34:55 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Apr 1 17:34:55 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1775057693
OK
Wed Apr 1 17:34:55 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Apr 1 17:34:55 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 Apr 1 17:34:56 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 Apr 1 17:34:57 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Apr 1 17:34:57 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Wed Apr 1 15:34:57 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 102m 1024 340 1.000 0.071 0.353
*metbox2.sth.atl .PPS. 1 u 880 1024 377 0.265 0.030 0.057
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 196.21.187.2 2 u 57 1024 377 25.076 -0.114 0.952
+ntp.as3741.net 146.64.8.7 2 u 360 1024 377 22.841 0.047 0.223
-ntp2.as3741.net 155.232.19.6 2 u 895 1024 377 7.273 0.251 0.472
-ntp2.inx.net.za 196.21.187.2 2 u 188 1024 377 7.354 0.419 0.031
-102.222.100.153 155.232.19.6 2 u 78 1024 377 7.900 1.043 0.221
-ntp5.inx.net.za 183.3.52.101 2 u 771 1024 377 7.891 0.405 0.095
+flipping.cloudh 80.72.67.48 3 u 455 1024 377 8.081 0.160 0.061
102.216.37.99 ( 210.182.58.253 2 u 58d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 829 1024 377 23.528 -0.804 0.382
Wed Apr 1 17:35:00 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6082GB)
200GB available in /atlas/red...OK (8807GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.5T 5.9T 44% /
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 5.0T 8.4T 38% /
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 Apr 1 17:35:00 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 Apr 1 17:35:00 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Wed Apr 1 17:35:00 SAST 2026 [elapsed=6 sec] SERVICES2
Wed Apr 1 17:35:00 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Apr 1 17:35:05 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=1.49e+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 Apr 1 17:38:15 SAST 2026 [elapsed=201 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: 83.29 -29.49, az/alt=324.69 +86.49 idle(e) IDLE
Wed Apr 1 17:39:12 SAST 2026 [elapsed=258 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Apr 1 17:39:33 SAST 2026 [elapsed=279 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
Wed Apr 1 17:39:33 SAST 2026 [elapsed=279 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 (-53.4C)
Checking CCD plane: Z0=+1793.00 DZDX=-902.00 DZDY=+4315.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Apr 1 17:39:33 SAST 2026 [elapsed=279 sec] WEATHER
status weather: clear 26.7C 23% 23/32kph@297 DP23.0C/1C/d IDLE
...OK
Wed Apr 1 17:39:33 SAST 2026 [elapsed=279 sec] MET
status...OK
met: c=N o=Y Ro4d Co4d Wo22h Ho4d To4d Do4d IDLE
Wed Apr 1 17:39:33 SAST 2026 [elapsed=279 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Apr 1 17:39:34 SAST 2026 [elapsed=280 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 112.22 -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 110 1.2%
A 0.081s 395 4.3%
A 0.111s 732 8.0%
A 0.142s 1191 13.0%
A 0.172s 1784 19.5%
A 0.202s 2463 26.9%
A 0.233s 3262 35.6%
A 0.263s 4165 45.5%
A 0.293s 5114 55.9%
A 0.324s 5991 65.4%
A 0.354s 6779 74.1%
A 0.384s 7439 81.3%
A 0.415s 8000 87.4%
A 0.445s 8477 92.6%
A 0.475s 8798 96.1%
A 0.505s 9028 98.6%
A 0.536s 9150 100.0%
B 0.020s 1 0.0%
B 0.050s 98 1.1%
B 0.081s 388 4.2%
B 0.111s 726 7.9%
B 0.141s 1200 13.1%
B 0.172s 1779 19.4%
B 0.202s 2465 26.9%
B 0.232s 3258 35.6%
B 0.262s 4169 45.5%
B 0.292s 5103 55.7%
B 0.323s 5990 65.4%
B 0.353s 6776 74.0%
B 0.383s 7435 81.2%
B 0.414s 8010 87.5%
B 0.444s 8454 92.4%
B 0.474s 8796 96.1%
B 0.505s 9026 98.6%
B 0.535s 9142 99.9%
B 0.565s 9159 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9061 99.0%
A 0.081s 8770 95.8%
A 0.111s 8413 91.9%
A 0.142s 7967 87.0%
A 0.172s 7372 80.5%
A 0.202s 6692 73.1%
A 0.233s 5869 64.1%
A 0.263s 4953 54.1%
A 0.293s 4013 43.8%
A 0.324s 3138 34.3%
A 0.354s 2354 25.7%
A 0.384s 1691 18.5%
A 0.414s 1132 12.4%
A 0.445s 685 7.5%
A 0.475s 348 3.8%
A 0.505s 124 1.4%
A 0.536s 10 0.1%
A 0.566s -5 0.0%
B 0.020s 9147 99.9%
B 0.050s 9033 98.7%
B 0.081s 8768 95.8%
B 0.111s 8422 92.0%
B 0.141s 7956 86.9%
B 0.172s 7379 80.6%
B 0.202s 6694 73.1%
B 0.232s 5896 64.4%
B 0.263s 4984 54.4%
B 0.293s 4049 44.2%
B 0.323s 3165 34.6%
B 0.354s 2385 26.1%
B 0.384s 1714 18.7%
B 0.414s 1140 12.5%
B 0.445s 699 7.6%
B 0.475s 356 3.9%
B 0.505s 129 1.4%
B 0.536s 14 0.2%
B 0.566s -3 0.0%
A 0 0.0mm 15 N F R | B -3 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.536 seconds.
Shutter B opened to 100.0 percent in 0.565 seconds.
Shutter A closed to 0.0 percent in 0.566 seconds.
Shutter B closed to 0.0 percent in 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.15e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9265 IDLE
Wed Apr 1 17:41:22 SAST 2026 [elapsed=388 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:
126M Apr 1 17:41 /atlas/obs/03a/61132/03a61132e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Apr 1 17:41:45 SAST 2026 [elapsed=411 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (28 seconds old)
OTA humidity level...OK (4%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Apr 1 17:41:45 SAST 2026 [elapsed=411 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61131.65400134|info|galildriver|using focus model: foc=9187+(4.30)*24.7+(-0.40)*60.4=9269.0
61131.65400659|info|galildriver|o 2 IN | cass: 3044395 15.22 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54012409 9265 um b=8f M [focus]
61131.65401723|info|galildriver|o 2 IN | cass: 3044394 15.22 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54012472 9265 um b=2f [cmd]
bestfocus for o...OK
Wed Apr 1 17:41:47 SAST 2026 [elapsed=413 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Apr 1 17:42:16 SAST 2026 [elapsed=442 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 Apr 1 17:42:17 SAST 2026 [elapsed=443 sec] NOTICES: det_dzdx=-902 is outside range +-250 from -558; det_dzdy=4315 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 Apr 1 17:42:17 SAST 2026 [elapsed=443 sec] Happy observing!
Wed Apr 1 17:42:17 SAST 2026 [elapsed=443 sec] Preflight took 443 seconds to complete.
Wed Apr 1 17:42:17 SAST 2026 [elapsed=443 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