STH Recent Preflight: 61116
Executing preflight for 61116 at Mon Mar 16 17:55:42 SAST 2026.
Log can be found in /atlas/obs/03/61116/preflight.dat.
Setting donefile '/atlas/obs/03/61116/preflight_complete.20260316155542.25684' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260316155542.25684.
Mon Mar 16 17:55:42 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Mar 16 17:55:42 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [67dc0956-9233-4cc1-8115-0687724345d9;1800]
Mon Mar 16 17:55:42 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Mar 16 17:55:43 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Mar 16 17:55:43 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Mon Mar 16 17:55:43 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Mar 16 17:55:43 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1773676535
OK
Mon Mar 16 17:55:43 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Mar 16 17:55:43 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
Mon Mar 16 17:55:45 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
Mon Mar 16 17:55:45 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Mar 16 17:55:45 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Mon Mar 16 15:55:45 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 581 1024 377 1.025 0.029 0.058
*metbox2.sth.atl .PPS. 1 u 138 1024 377 0.285 -0.034 0.033
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 229.179.94.34 2 u 768 1024 377 24.347 -0.145 0.367
+ntp.as3741.net 146.64.8.7 2 u 802 1024 377 22.755 -0.050 0.193
-ntp2.as3741.net 155.232.19.6 2 u 529 1024 377 7.215 0.021 0.049
-ntp2.inx.net.za 183.3.52.101 2 u 134 1024 377 7.295 -0.002 0.116
-102.222.100.153 155.232.19.6 2 u 906 1024 377 7.753 0.293 0.473
-ntp5.inx.net.za 210.182.58.253 2 u 712 1024 377 7.906 0.144 0.060
-flipping.cloudh 80.72.67.48 3 u 560 1024 377 8.058 -0.116 0.100
102.216.37.99 ( 210.182.58.253 2 u 42d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 456 1024 377 22.729 0.224 0.125
Mon Mar 16 17:55:48 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6022GB)
200GB available in /atlas/red...OK (8923GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.5T 5.8T 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 38% /
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/loop1 105M 105M 0 100% /snap/core/17247
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/md0p1 15T 1.7T 12T 13% /
proc2:/dev/loop0 105M 105M 0 100% /snap/core/17247
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/md0p1 15T 735G 13T 6% /
proc3:/dev/loop1 105M 105M 0 100% /snap/core/17247
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
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
Mon Mar 16 17:55:48 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
Mon Mar 16 17:55:48 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Mon Mar 16 17:55:48 SAST 2026 [elapsed=6 sec] SERVICES2
Mon Mar 16 17:55:48 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Mar 16 17:55:53 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= 918kB time=00:00:29.37 bitrate= 256.0kbits/s speed=1.45e+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
Mon Mar 16 17:59:11 SAST 2026 [elapsed=209 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: 72.78 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Mon Mar 16 18:00:10 SAST 2026 [elapsed=268 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Mar 16 18:00:31 SAST 2026 [elapsed=289 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.9 IDLE
Mon Mar 16 18:00:31 SAST 2026 [elapsed=289 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.1C)
Checking CCD plane: Z0=+1775.00 DZDX=-898.00 DZDY=+3927.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Mar 16 18:00:31 SAST 2026 [elapsed=289 sec] WEATHER
status weather: C+ 22.9C 39% 5/9kph@317 DP13.7C/-22C/d IDLE
...OK
Mon Mar 16 18:00:31 SAST 2026 [elapsed=289 sec] MET
status...OK
met: c=N o=N Ro2h Cx2 Wo9d Ho8d To76d Do3h wait C IDLE
Mon Mar 16 18:00:32 SAST 2026 [elapsed=290 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Mar 16 18:00:32 SAST 2026 [elapsed=290 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 101.70 -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 13 0.1%
A 0.051s 106 1.2%
A 0.081s 389 4.2%
A 0.111s 747 8.2%
A 0.150s 1276 13.9%
A 0.186s 2128 23.2%
A 0.217s 2861 31.3%
A 0.247s 3710 40.5%
A 0.277s 4632 50.6%
A 0.307s 5550 60.6%
A 0.338s 6384 69.7%
A 0.368s 7115 77.7%
A 0.398s 7727 84.4%
A 0.428s 8237 90.0%
A 0.459s 8635 94.3%
A 0.489s 8911 97.3%
A 0.519s 9096 99.4%
A 0.549s 9164 100.0%
B 0.020s 2 0.0%
B 0.050s 97 1.1%
B 0.081s 395 4.3%
B 0.111s 741 8.1%
B 0.141s 1218 13.3%
B 0.171s 1800 19.7%
B 0.202s 2483 27.1%
B 0.232s 3292 36.0%
B 0.262s 4202 45.9%
B 0.293s 5128 56.0%
B 0.323s 6022 65.8%
B 0.353s 6791 74.2%
B 0.383s 7453 81.4%
B 0.414s 8037 87.8%
B 0.444s 8463 92.5%
B 0.474s 8807 96.2%
B 0.504s 9028 98.6%
B 0.535s 9142 99.9%
B 0.565s 9160 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.050s 9061 99.0%
A 0.081s 8763 95.7%
A 0.111s 8397 91.7%
A 0.141s 7950 86.8%
A 0.172s 7350 80.3%
A 0.202s 6667 72.8%
A 0.232s 5870 64.1%
A 0.262s 4953 54.1%
A 0.293s 4014 43.8%
A 0.323s 3143 34.3%
A 0.353s 2353 25.7%
A 0.383s 1684 18.4%
A 0.414s 1135 12.4%
A 0.444s 687 7.5%
A 0.474s 343 3.7%
A 0.505s 125 1.4%
A 0.535s 11 0.1%
A 0.565s -8 0.0%
B 0.020s 9148 99.9%
B 0.050s 9041 98.8%
B 0.081s 8778 95.9%
B 0.111s 8424 92.0%
B 0.141s 7956 86.9%
B 0.172s 7400 80.8%
B 0.202s 6707 73.3%
B 0.232s 5895 64.4%
B 0.263s 4980 54.4%
B 0.293s 4064 44.4%
B 0.323s 3150 34.4%
B 0.354s 2387 26.1%
B 0.384s 1719 18.8%
B 0.414s 1137 12.4%
B 0.444s 696 7.6%
B 0.475s 361 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 0.549 seconds.
Shutter B opened to 100.0 percent in 0.565 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=1.1e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9261 IDLE
Mon Mar 16 18:01:08 SAST 2026 [elapsed=326 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.9 IDLE
taking preflight exposures:
acam...OK
acam image:
122M Mar 16 18:01 /atlas/obs/03a/61116/03a61116e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Mar 16 18:01:31 SAST 2026 [elapsed=349 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (44 seconds old)
OTA humidity level...OK (4%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Mar 16 18:01:31 SAST 2026 [elapsed=349 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61115.66772699|info|galildriver|using focus model: foc=9187+(4.30)*22.2+(-0.40)*60.2=9258.4
61115.66773225|info|galildriver|o 2 IN | cass: 3046356 15.23 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54011641 9261 um b=8f M [focus]
61115.66774287|info|galildriver|o 2 IN | cass: 3046356 15.23 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54011647 9261 um b=2f [cmd]
bestfocus for o...OK
Mon Mar 16 18:01:33 SAST 2026 [elapsed=351 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Mar 16 18:02:03 SAST 2026 [elapsed=381 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
Mon Mar 16 18:02:04 SAST 2026 [elapsed=382 sec] NOTICES: det_dzdx=-898 is outside range +-250 from -558; det_dzdy=3927 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Mon Mar 16 18:02:04 SAST 2026 [elapsed=382 sec] Happy observing!
Mon Mar 16 18:02:04 SAST 2026 [elapsed=382 sec] Preflight took 382 seconds to complete.
Mon Mar 16 18:02:04 SAST 2026 [elapsed=382 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 116 1.3% A 0.081s 373 4.1% A 0.111s 718 7.8% A 0.141s 1182 12.9% A 0.171s 1759 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 6756 73.8% A 0.383s 7412 81.0% A 0.413s 7991 87.3% A 0.444s 8446 92.3% A 0.474s 8779 95.9% A 0.504s 9023 98.6% A 0.534s 9137 99.8% A 0.565s 9152 100.0% B 0.020s -1 -0.0% B 0.050s 105 1.1% B 0.081s 378 4.1% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1753 19.2% B 0.202s 2441 26.7% B 0.232s 3240 35.4% B 0.262s 4135 45.2% B 0.292s 5074 55.4% B 0.322s 5959 65.1% B 0.352s 6749 73.7% B 0.383s 7418 81.0% B 0.413s 7986 87.2% B 0.443s 8431 92.1% B 0.473s 8778 95.9% B 0.503s 9012 98.4% B 0.534s 9133 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9155 100.0% A 0.050s 9050 98.9% A 0.081s 8783 95.9% A 0.111s 8430 92.1% A 0.141s 7965 87.0% A 0.171s 7385 80.7% A 0.202s 6694 73.1% A 0.232s 5903 64.5% A 0.262s 4982 54.4% A 0.293s 4045 44.2% A 0.323s 3172 34.7% A 0.353s 2381 26.0% A 0.383s 1714 18.7% A 0.414s 1146 12.5% A 0.444s 692 7.6% A 0.474s 360 3.9% A 0.504s 125 1.4% A 0.535s 15 0.2% A 0.565s 4 0.0% B 0.020s 9144 99.9% B 0.050s 9009 98.4% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.171s 7377 80.6% B 0.202s 6687 73.1% B 0.232s 5892 64.4% B 0.262s 4983 54.4% B 0.292s 4052 44.3% B 0.322s 3161 34.5% B 0.353s 2393 26.1% B 0.383s 1704 18.6% B 0.413s 1147 12.5% B 0.443s 700 7.6% B 0.474s 355 3.9% B 0.504s 133 1.5% B 0.534s 13 0.1% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R