STH Recent Preflight: 61165
Executing preflight for 61165 at Mon May 4 16:58:10 SAST 2026.
Log can be found in /atlas/obs/03/61165/preflight.dat.
Setting donefile '/atlas/obs/03/61165/preflight_complete.20260504145810.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260504145810.11042.
Mon May 4 16:58:10 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon May 4 16:58:10 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [c9cda37a-0859-4370-ba7d-8bf466370628;1800]
Mon May 4 16:58:10 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon May 4 16:58:12 SAST 2026 [elapsed=2 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon May 4 16:58:12 SAST 2026 [elapsed=2 sec] auxcam is disabled.
Mon May 4 16:58:12 SAST 2026 [elapsed=2 sec] Skipping auxcam.
error: unknown module: vent
Mon May 4 16:58:12 SAST 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777906689
OK
Mon May 4 16:58:12 SAST 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Mon May 4 16:58:12 SAST 2026 [elapsed=2 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 May 4 16:58:13 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 May 4 16:58:14 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Mon May 4 16:58:14 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Mon May 4 14:58:14 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 1151 1024 376 0.994 0.039 0.056
*metbox2.sth.atl .PPS. 1 u 764 1024 377 0.377 -0.024 0.043
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 723 1024 377 24.301 0.118 0.346
+ntp.as3741.net 146.64.58.41 2 u 145 1024 377 23.702 -0.477 2.056
-ntp2.as3741.net 155.232.19.7 2 u 141 1024 377 7.244 -0.078 0.136
-ntp2.inx.net.za 210.182.58.253 2 u 456 1024 377 7.298 0.073 0.075
102.222.100.153 196.21.187.2 2 u 5d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 183.3.52.101 2 u 34 1024 377 7.887 0.052 0.164
-flipping.cloudh 80.72.67.48 3 u 323 1024 377 8.142 0.115 0.112
102.216.37.99 ( 210.182.58.253 2 u 91d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 359 1024 377 22.679 0.646 0.710
Mon May 4 16:58:16 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6001GB)
200GB available in /atlas/red...OK (9244GB)
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/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 4.6T 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 736G 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
Mon May 4 16:58:16 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 May 4 16:58:17 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Mon May 4 16:58:17 SAST 2026 [elapsed=7 sec] SERVICES2
Mon May 4 16:58:17 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon May 4 16:58:21 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= 922kB time=00:00:29.50 bitrate= 256.0kbits/s speed=1.55e+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 May 4 17:00:55 SAST 2026 [elapsed=165 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: 106.47 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Mon May 4 17:01:54 SAST 2026 [elapsed=224 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon May 4 17:02:15 SAST 2026 [elapsed=245 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Mon May 4 17:02:15 SAST 2026 [elapsed=245 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.0C)
Checking CCD plane: Z0=+1699.00 DZDX=-881.00 DZDY=+2152.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon May 4 17:02:15 SAST 2026 [elapsed=245 sec] WEATHER
status weather: R+ H+ 7.9C 90% 38/47kph@325 DP1.4C/-2C/d IDLE
...OK
Mon May 4 17:02:16 SAST 2026 [elapsed=246 sec] MET
status...OK
met: c=Y o=N Rx45 Cx0 Wo7d Hx1h To37d Do2d wait RCH IDLE
Mon May 4 17:02:16 SAST 2026 [elapsed=246 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon May 4 17:02:16 SAST 2026 [elapsed=246 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 135.39 -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 8 0.1%
A 0.051s 108 1.2%
A 0.081s 390 4.3%
A 0.111s 732 8.0%
A 0.142s 1189 13.0%
A 0.172s 1782 19.5%
A 0.202s 2466 26.9%
A 0.233s 3258 35.6%
A 0.263s 4164 45.5%
A 0.293s 5114 55.9%
A 0.324s 6017 65.7%
A 0.354s 6804 74.3%
A 0.384s 7457 81.5%
A 0.415s 8017 87.6%
A 0.445s 8466 92.5%
A 0.475s 8802 96.2%
A 0.505s 9029 98.6%
A 0.536s 9154 100.0%
B 0.020s 1 0.0%
B 0.050s 96 1.0%
B 0.081s 381 4.2%
B 0.111s 726 7.9%
B 0.145s 1214 13.3%
B 0.181s 1985 21.7%
B 0.221s 2786 30.4%
B 0.255s 3889 42.5%
B 0.293s 4986 54.5%
B 0.325s 6020 65.8%
B 0.361s 6863 75.0%
B 0.401s 7785 85.0%
B 0.432s 8284 90.5%
B 0.462s 8677 94.8%
B 0.492s 8955 97.8%
B 0.522s 9114 99.6%
B 0.553s 9162 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8774 95.8%
A 0.111s 8415 91.9%
A 0.141s 7968 87.0%
A 0.171s 7374 80.6%
A 0.202s 6692 73.1%
A 0.232s 5896 64.4%
A 0.262s 4982 54.4%
A 0.292s 4045 44.2%
A 0.323s 3166 34.6%
A 0.353s 2400 26.2%
A 0.383s 1710 18.7%
A 0.414s 1146 12.5%
A 0.444s 699 7.6%
A 0.474s 355 3.9%
A 0.504s 127 1.4%
A 0.535s 11 0.1%
A 0.565s -8 0.0%
B 0.020s 9146 99.9%
B 0.051s 9035 98.7%
B 0.081s 8774 95.8%
B 0.111s 8425 92.0%
B 0.141s 7959 86.9%
B 0.172s 7380 80.6%
B 0.202s 6695 73.1%
B 0.232s 5897 64.4%
B 0.262s 4983 54.4%
B 0.293s 4050 44.2%
B 0.323s 3164 34.6%
B 0.353s 2383 26.0%
B 0.384s 1714 18.7%
B 0.414s 1140 12.5%
B 0.444s 696 7.6%
B 0.474s 355 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 0.536 seconds.
Shutter B opened to 100.0 percent in 0.553 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=1.14e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9215 IDLE
Mon May 4 17:02:59 SAST 2026 [elapsed=289 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
124M May 4 17:03 /atlas/obs/03a/61165/03a61165e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon May 4 17:03:21 SAST 2026 [elapsed=311 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (64 seconds old)
OTA humidity level...OK (9%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon May 4 17:03:21 SAST 2026 [elapsed=311 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61164.62733849|info|galildriver|using focus model: foc=9187+(4.30)*13.2+(-0.40)*60.2=9219.7
61164.62734374|info|galildriver|o 2 IN | cass: 3049006 15.25 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54002501 9216 um b=8f M [focus]
61164.62735435|info|galildriver|o 2 IN | cass: 3049007 15.25 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54002575 9216 um b=2f [cmd]
bestfocus for o...OK
Mon May 4 17:03:24 SAST 2026 [elapsed=314 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon May 4 17:03:53 SAST 2026 [elapsed=343 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 May 4 17:03:55 SAST 2026 [elapsed=345 sec] NOTICES: det_dzdx=-881 is outside range +-250 from -558; det_dzdy=2152 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 May 4 17:03:55 SAST 2026 [elapsed=345 sec] Happy observing!
Mon May 4 17:03:55 SAST 2026 [elapsed=345 sec] Preflight took 345 seconds to complete.
Mon May 4 17:03:55 SAST 2026 [elapsed=345 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 113 1.2% A 0.081s 377 4.1% A 0.111s 736 8.0% A 0.141s 1180 12.9% A 0.171s 1763 19.3% A 0.202s 2442 26.7% A 0.232s 3238 35.4% A 0.262s 4145 45.3% A 0.292s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.414s 7989 87.3% A 0.444s 8445 92.3% A 0.474s 8782 95.9% A 0.504s 9021 98.5% A 0.535s 9136 99.8% A 0.565s 9153 100.0% B 0.020s 1 0.0% B 0.050s 112 1.2% B 0.081s 379 4.1% B 0.111s 727 7.9% B 0.141s 1184 12.9% B 0.171s 1751 19.1% B 0.202s 2466 26.9% B 0.232s 3241 35.4% B 0.262s 4135 45.2% B 0.292s 5070 55.4% B 0.323s 5958 65.1% B 0.353s 6751 73.7% B 0.383s 7421 81.1% B 0.413s 7985 87.2% B 0.443s 8445 92.3% B 0.474s 8786 96.0% B 0.504s 9017 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.051s 9043 98.8% A 0.081s 8757 95.7% A 0.112s 8393 91.7% A 0.142s 7924 86.6% A 0.172s 7339 80.2% A 0.203s 6644 72.6% A 0.233s 5838 63.8% A 0.264s 4919 53.7% A 0.294s 3951 43.2% A 0.325s 3085 33.7% A 0.355s 2317 25.3% A 0.385s 1652 18.0% A 0.415s 1098 12.0% A 0.446s 657 7.2% A 0.476s 333 3.6% A 0.506s 109 1.2% A 0.537s 9 0.1% B 0.020s 9143 99.9% B 0.051s 9012 98.4% B 0.081s 8762 95.7% B 0.112s 8409 91.9% B 0.142s 7936 86.7% B 0.172s 7361 80.4% B 0.203s 6667 72.8% B 0.233s 5836 63.8% B 0.263s 4921 53.8% B 0.294s 3995 43.6% B 0.324s 3111 34.0% B 0.355s 2345 25.6% B 0.385s 1663 18.2% B 0.415s 1115 12.2% B 0.446s 661 7.2% B 0.476s 339 3.7% B 0.506s 116 1.3% B 0.537s 9 0.1% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R