STH Recent Preflight: 61186
Executing preflight for 61186 at Mon May 25 16:44:28 SAST 2026.
Log can be found in /atlas/obs/03/61186/preflight.dat.
Setting donefile '/atlas/obs/03/61186/preflight_complete.20260525144428.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260525144428.11042.
Mon May 25 16:44:28 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon May 25 16:44:28 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [b9e8b762-ef4e-4352-abd9-31ff6ebf0636;1800]
Mon May 25 16:44:28 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon May 25 16:44:30 SAST 2026 [elapsed=2 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon May 25 16:44:30 SAST 2026 [elapsed=2 sec] auxcam is disabled.
Mon May 25 16:44:30 SAST 2026 [elapsed=2 sec] Skipping auxcam.
error: unknown module: vent
Mon May 25 16:44:30 SAST 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1779720264
OK
Mon May 25 16:44:30 SAST 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Mon May 25 16:44:30 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 25 16:44:31 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 25 16:44:32 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Mon May 25 16:44:32 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Mon May 25 14:44:32 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 88 256 377 0.980 -0.104 0.182
-metbox2.sth.atl .PPS. 1 u 8 256 377 0.275 -0.336 0.130
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 253 256 377 24.195 0.136 0.445
-ntp.as3741.net 210.182.58.253 2 u 47 256 377 22.833 -0.334 2.064
+ntp2.as3741.net 129.134.26.123 2 u 81 256 377 7.244 -0.220 0.134
-ntp2.inx.net.za 210.182.58.253 2 u 175 256 377 7.254 -0.191 0.128
102.222.100.153 196.21.187.2 2 u 26d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 183.3.52.101 2 u 255 256 377 7.445 -0.042 0.222
+flipping.cloudh 80.72.67.48 3 u 103 256 377 7.799 -0.025 1.617
102.216.37.99 ( 210.182.58.253 2 u 112d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 102.176.229.251 2 u 174 256 377 22.757 0.891 0.723
Mon May 25 16:44:34 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6296GB)
200GB available in /atlas/red...OK (9498GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.3T 6.1T 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 4.3T 9.1T 33% /
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 739G 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 25 16:44:34 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 25 16:44:34 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Mon May 25 16:44:35 SAST 2026 [elapsed=7 sec] SERVICES2
Mon May 25 16:44:35 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 2.9/3.0C ? chiller=ON dryer=? IDLE
Mon May 25 16:44:39 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= 924kB time=00:00:29.56 bitrate= 256.0kbits/s speed=1.46e+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 25 16:47:11 SAST 2026 [elapsed=163 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: 123.72 -29.49, az/alt=324.69 +86.49 idle(e) IDLE
Mon May 25 16:48:09 SAST 2026 [elapsed=221 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon May 25 16:48:30 SAST 2026 [elapsed=242 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
Mon May 25 16:48:30 SAST 2026 [elapsed=242 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (7 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.7C)
Checking CCD plane: Z0=+1724.00 DZDX=-889.00 DZDY=+2712.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon May 25 16:48:30 SAST 2026 [elapsed=242 sec] WEATHER
status weather: clear 15.0C 48% 17/23kph@6 DP8.0C/-106C/d IDLE
...OK
Mon May 25 16:48:30 SAST 2026 [elapsed=242 sec] MET
status...OK
met: c=N o=Y Ro4d Co1d Wo4d Ho1d To4d Do1d IDLE
Mon May 25 16:48:30 SAST 2026 [elapsed=242 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon May 25 16:48:31 SAST 2026 [elapsed=243 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 152.64 -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 -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 9 0.1%
A 0.051s 114 1.2%
A 0.081s 401 4.4%
A 0.111s 746 8.1%
A 0.142s 1206 13.2%
A 0.172s 1803 19.7%
A 0.202s 2491 27.2%
A 0.232s 3285 35.9%
A 0.263s 4193 45.8%
A 0.293s 5146 56.2%
A 0.324s 6018 65.7%
A 0.354s 6803 74.3%
A 0.384s 7459 81.5%
A 0.414s 8015 87.6%
A 0.445s 8478 92.6%
A 0.475s 8810 96.2%
A 0.505s 9033 98.7%
A 0.535s 9154 100.0%
B 0.020s 1 0.0%
B 0.050s 104 1.1%
B 0.081s 395 4.3%
B 0.111s 739 8.1%
B 0.141s 1215 13.3%
B 0.172s 1796 19.6%
B 0.202s 2490 27.2%
B 0.232s 3285 35.9%
B 0.262s 4195 45.8%
B 0.293s 5130 56.0%
B 0.323s 6020 65.8%
B 0.353s 6797 74.3%
B 0.383s 7457 81.5%
B 0.414s 8026 87.7%
B 0.444s 8455 92.4%
B 0.474s 8797 96.1%
B 0.504s 9034 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9063 99.0%
A 0.081s 8772 95.8%
A 0.111s 8415 91.9%
A 0.141s 7967 87.0%
A 0.171s 7373 80.5%
A 0.202s 6693 73.1%
A 0.232s 5896 64.4%
A 0.262s 4983 54.4%
A 0.293s 4044 44.2%
A 0.323s 3167 34.6%
A 0.353s 2378 26.0%
A 0.383s 1708 18.7%
A 0.414s 1148 12.5%
A 0.444s 699 7.6%
A 0.474s 354 3.9%
A 0.504s 129 1.4%
A 0.535s 13 0.1%
A 0.565s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9036 98.7%
B 0.081s 8772 95.8%
B 0.111s 8425 92.0%
B 0.141s 7957 86.9%
B 0.171s 7380 80.6%
B 0.202s 6694 73.1%
B 0.232s 5897 64.4%
B 0.262s 4984 54.4%
B 0.292s 4050 44.2%
B 0.323s 3192 34.9%
B 0.353s 2384 26.0%
B 0.383s 1733 18.9%
B 0.413s 1157 12.6%
B 0.444s 697 7.6%
B 0.474s 356 3.9%
B 0.504s 134 1.5%
B 0.534s 14 0.2%
B 0.565s -4 0.0%
A 0 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 99.9 percent in 0.535 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= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.06e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9231 IDLE
Mon May 25 16:49:27 SAST 2026 [elapsed=299 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:
124M May 25 16:49 /atlas/obs/03a/61186/03a61186e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon May 25 16:49:49 SAST 2026 [elapsed=321 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (62 seconds old)
OTA humidity level...OK (8%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon May 25 16:49:49 SAST 2026 [elapsed=321 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61185.61793740|info|galildriver|using focus model: foc=9187+(4.30)*16.7+(-0.40)*60.2=9234.7
61185.61794265|info|galildriver|o 2 IN | cass: 3046540 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54005627 9231 um b=8f M [focus]
61185.61795325|info|galildriver|o 2 IN | cass: 3046543 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54005703 9232 um b=2f [cmd]
bestfocus for o...OK
Mon May 25 16:49:51 SAST 2026 [elapsed=323 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon May 25 16:50:21 SAST 2026 [elapsed=353 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 25 16:50:22 SAST 2026 [elapsed=354 sec] NOTICES: det_dzdx=-889 is outside range +-250 from -558; det_dzdy=2712 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 25 16:50:22 SAST 2026 [elapsed=354 sec] Happy observing!
Mon May 25 16:50:22 SAST 2026 [elapsed=354 sec] Preflight took 354 seconds to complete.
Mon May 25 16:50:22 SAST 2026 [elapsed=354 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 0.021s 4 0.0% A 0.051s 121 1.3% A 0.081s 395 4.3% A 0.111s 749 8.2% A 0.142s 1213 13.3% A 0.172s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3266 35.7% A 0.263s 4175 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 8005 87.4% A 0.444s 8458 92.4% A 0.474s 8793 96.1% A 0.505s 9027 98.6% A 0.535s 9138 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1774 19.4% B 0.201s 2465 26.9% B 0.232s 3267 35.7% B 0.262s 4169 45.5% B 0.292s 5104 55.8% B 0.322s 5989 65.4% B 0.353s 6769 73.9% B 0.383s 7440 81.3% B 0.413s 8002 87.4% B 0.443s 8457 92.4% B 0.474s 8796 96.1% B 0.504s 9023 98.6% B 0.534s 9139 99.8% B 0.564s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9049 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.171s 7380 80.6% A 0.202s 6691 73.1% A 0.232s 5894 64.4% A 0.262s 4981 54.4% A 0.293s 4069 44.5% A 0.323s 3193 34.9% A 0.353s 2410 26.3% A 0.383s 1730 18.9% A 0.413s 1164 12.7% A 0.444s 706 7.7% A 0.474s 368 4.0% A 0.504s 130 1.4% A 0.534s 15 0.2% A 0.564s 2 0.0% B 0.020s 9146 99.9% B 0.050s 9024 98.6% B 0.080s 8781 95.9% B 0.111s 8434 92.1% B 0.141s 7968 87.0% B 0.171s 7397 80.8% B 0.201s 6714 73.3% B 0.232s 5920 64.7% B 0.262s 5042 55.1% B 0.292s 4112 44.9% B 0.322s 3217 35.1% B 0.352s 2440 26.7% B 0.382s 1745 19.1% B 0.413s 1179 12.9% B 0.443s 725 7.9% B 0.473s 375 4.1% B 0.503s 144 1.6% B 0.533s 18 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R