STH Recent Preflight: 61169
Executing preflight for 61169 at Fri May 8 16:54:48 SAST 2026.
Log can be found in /atlas/obs/03/61169/preflight.dat.
Setting donefile '/atlas/obs/03/61169/preflight_complete.20260508145448.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260508145448.11042.
Fri May 8 16:54:48 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri May 8 16:54:48 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [12a399c5-bc76-4747-acd3-4884c5b7f7d6;1800]
Fri May 8 16:54:48 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Fri May 8 16:54:49 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Fri May 8 16:54:49 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Fri May 8 16:54:49 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri May 8 16:54:49 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1778252087
OK
Fri May 8 16:54:49 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri May 8 16:54:49 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
Fri May 8 16:54:50 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
Fri May 8 16:54:51 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri May 8 16:54:51 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Fri May 8 14:54:51 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 2 1024 361 1.033 0.064 0.097
*metbox2.sth.atl .PPS. 1 u 311 1024 377 0.324 0.089 0.126
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 6 1024 377 24.319 0.786 0.167
-ntp.as3741.net 146.64.58.41 2 u 137 1024 377 22.877 -0.052 0.140
+ntp2.as3741.net 155.232.19.7 2 u 51 1024 377 7.319 0.037 0.121
-ntp2.inx.net.za 196.21.187.2 2 u 284 1024 377 7.291 0.123 0.096
102.222.100.153 196.21.187.2 2 u 9d 1024 0 7.937 0.836 0.000
+ntp5.inx.net.za 183.3.52.101 2 u 817 1024 377 7.578 0.115 0.083
+flipping.cloudh 80.72.67.48 3 u 317 1024 377 7.746 0.180 0.730
102.216.37.99 ( 210.182.58.253 2 u 95d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 154 1024 377 22.738 -0.096 0.434
Fri May 8 16:54:53 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6259GB)
200GB available in /atlas/red...OK (9306GB)
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/loop2 106M 106M 0 100% /snap/core/17284
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 21G 91G 19% /
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
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 8.9T 34% /
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/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 737G 13T 6% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Fri May 8 16:54:54 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
Fri May 8 16:54:54 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Fri May 8 16:54:54 SAST 2026 [elapsed=6 sec] SERVICES2
Fri May 8 16:54:54 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri May 8 16:54:59 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= 914kB time=00:00:29.24 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
Fri May 8 16:58:17 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: 109.75 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Fri May 8 16:59:15 SAST 2026 [elapsed=267 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri May 8 16:59:37 SAST 2026 [elapsed=289 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.9 IDLE
Fri May 8 16:59:37 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 (-55.1C)
Checking CCD plane: Z0=+1692.00 DZDX=-886.00 DZDY=+1974.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri May 8 16:59:37 SAST 2026 [elapsed=289 sec] WEATHER
status weather: clear 10.1C 53% 10/19kph@0 DP6.8C/-72C/d IDLE
...OK
Fri May 8 16:59:37 SAST 2026 [elapsed=289 sec] MET
status...OK
met: c=N o=Y Ro1d Co3h Wo2d Ho6h To41d Do6d IDLE
Fri May 8 16:59:37 SAST 2026 [elapsed=289 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri May 8 16:59:37 SAST 2026 [elapsed=289 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 138.67 -14.63, az/alt=59.89 +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 7 0.1%
A 0.051s 108 1.2%
A 0.081s 391 4.3%
A 0.111s 733 8.0%
A 0.142s 1190 13.0%
A 0.172s 1783 19.5%
A 0.203s 2466 26.9%
A 0.233s 3258 35.6%
A 0.263s 4163 45.5%
A 0.294s 5114 55.9%
A 0.324s 5991 65.4%
A 0.354s 6781 74.1%
A 0.385s 7437 81.2%
A 0.415s 8016 87.6%
A 0.445s 8479 92.6%
A 0.476s 8801 96.1%
A 0.506s 9027 98.6%
A 0.536s 9155 100.0%
B 0.020s 1 0.0%
B 0.051s 105 1.1%
B 0.081s 393 4.3%
B 0.111s 740 8.1%
B 0.142s 1215 13.3%
B 0.172s 1798 19.6%
B 0.202s 2488 27.2%
B 0.233s 3284 35.9%
B 0.263s 4197 45.8%
B 0.293s 5133 56.1%
B 0.324s 6020 65.8%
B 0.358s 6795 74.2%
B 0.391s 7595 83.0%
B 0.434s 8253 90.2%
B 0.466s 8710 95.1%
B 0.498s 8982 98.1%
B 0.538s 9149 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.051s 9058 99.0%
A 0.081s 8763 95.7%
A 0.111s 8402 91.8%
A 0.142s 7950 86.8%
A 0.172s 7354 80.3%
A 0.202s 6668 72.8%
A 0.233s 5869 64.1%
A 0.263s 4922 53.8%
A 0.294s 3987 43.6%
A 0.324s 3110 34.0%
A 0.354s 2330 25.5%
A 0.385s 1669 18.2%
A 0.415s 1114 12.2%
A 0.445s 674 7.4%
A 0.476s 335 3.7%
A 0.506s 117 1.3%
A 0.537s 8 0.1%
B 0.020s 9146 99.9%
B 0.051s 9035 98.7%
B 0.081s 8772 95.8%
B 0.111s 8426 92.0%
B 0.142s 7958 86.9%
B 0.172s 7379 80.6%
B 0.202s 6695 73.1%
B 0.233s 5870 64.1%
B 0.263s 4984 54.4%
B 0.293s 4022 43.9%
B 0.324s 3136 34.3%
B 0.354s 2361 25.8%
B 0.384s 1693 18.5%
B 0.415s 1123 12.3%
B 0.445s 684 7.5%
B 0.475s 345 3.8%
B 0.506s 122 1.3%
B 0.536s 10 0.1%
B 0.566s -6 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 0.536 seconds.
Shutter B opened to 99.9 percent in 0.538 seconds.
Shutter A closed to 0.1 percent in 0.537 seconds.
Shutter B closed to 0.0 percent in 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed= 924x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9218 IDLE
Fri May 8 17:00:32 SAST 2026 [elapsed=344 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.9 IDLE
taking preflight exposures:
acam...OK
acam image:
125M May 8 17:00 /atlas/obs/03a/61169/03a61169e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri May 8 17:00:55 SAST 2026 [elapsed=367 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (8 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri May 8 17:00:55 SAST 2026 [elapsed=367 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61168.62564380|info|galildriver|using focus model: foc=9187+(4.30)*13.8+(-0.40)*60.2=9222.2
61168.62564905|info|galildriver|o 2 IN | cass: 3048626 15.24 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54003094 9219 um b=8f M [focus]
61168.62565967|info|galildriver|o 2 IN | cass: 3048628 15.24 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54003170 9219 um b=2f [cmd]
bestfocus for o...OK
Fri May 8 17:00:57 SAST 2026 [elapsed=369 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri May 8 17:01:27 SAST 2026 [elapsed=399 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
Fri May 8 17:01:28 SAST 2026 [elapsed=400 sec] NOTICES: det_dzdx=-886 is outside range +-250 from -558; det_dzdy=1974 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Fri May 8 17:01:28 SAST 2026 [elapsed=400 sec] Happy observing!
Fri May 8 17:01:28 SAST 2026 [elapsed=400 sec] Preflight took 400 seconds to complete.
Fri May 8 17:01:28 SAST 2026 [elapsed=400 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 0.051s 113 1.2% A 0.081s 387 4.2% A 0.111s 736 8.0% A 0.141s 1196 13.1% A 0.172s 1783 19.5% A 0.202s 2466 26.9% A 0.232s 3265 35.7% A 0.262s 4174 45.6% A 0.293s 5104 55.8% A 0.323s 5997 65.5% A 0.353s 6776 74.0% A 0.383s 7433 81.2% A 0.414s 8006 87.5% A 0.444s 8457 92.4% A 0.474s 8792 96.0% A 0.504s 9027 98.6% A 0.535s 9137 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 110 1.2% B 0.081s 380 4.2% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1774 19.4% B 0.202s 2468 27.0% B 0.232s 3268 35.7% B 0.262s 4167 45.5% B 0.292s 5102 55.7% B 0.323s 5988 65.4% B 0.353s 6772 74.0% B 0.383s 7439 81.3% B 0.413s 8001 87.4% B 0.444s 8457 92.4% B 0.474s 8794 96.1% B 0.504s 9022 98.6% B 0.534s 9138 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.051s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.172s 7380 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.323s 3165 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1148 12.5% A 0.444s 694 7.6% A 0.474s 358 3.9% A 0.504s 126 1.4% A 0.534s 14 0.2% A 0.564s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9018 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.172s 7378 80.6% B 0.202s 6689 73.1% B 0.232s 5891 64.4% B 0.262s 4979 54.4% B 0.292s 4081 44.6% B 0.323s 3191 34.9% B 0.353s 2392 26.1% B 0.383s 1706 18.6% B 0.413s 1160 12.7% B 0.444s 713 7.8% B 0.474s 364 4.0% B 0.504s 138 1.5% B 0.534s 15 0.2% B 0.565s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R