STH Recent Preflight: 61168
Executing preflight for 61168 at Thu May 7 16:55:34 SAST 2026.
Log can be found in /atlas/obs/03/61168/preflight.dat.
Setting donefile '/atlas/obs/03/61168/preflight_complete.20260507145534.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260507145534.11042.
Thu May 7 16:55:34 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu May 7 16:55:34 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [1119d9cf-a7ee-4f53-b376-26c8bdb63a2e;1800]
Thu May 7 16:55:34 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu May 7 16:55:35 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu May 7 16:55:35 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu May 7 16:55:35 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu May 7 16:55:35 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1778165730
OK
Thu May 7 16:55:35 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu May 7 16:55:35 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
Thu May 7 16:55:37 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
Thu May 7 16:55:37 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu May 7 16:55:37 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Thu May 7 14:55:37 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 498 1024 363 1.015 -0.090 0.100
*metbox2.sth.atl .PPS. 1 u 440 1024 377 0.305 -0.146 0.063
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 98 1024 377 24.309 0.033 0.251
-ntp.as3741.net 146.64.58.41 2 u 355 1024 377 22.894 -0.070 0.960
-ntp2.as3741.net 155.232.19.7 2 u 220 1024 377 7.296 -0.146 0.139
-ntp2.inx.net.za 210.182.58.253 2 u 436 1024 377 7.237 -0.057 0.071
102.222.100.153 196.21.187.2 2 u 8d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 183.3.52.101 2 u 1009 1024 377 7.590 -0.062 0.975
+flipping.cloudh 80.72.67.48 3 u 411 1024 377 7.811 -0.178 0.073
102.216.37.99 ( 210.182.58.253 2 u 94d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 376 1024 377 22.812 0.797 0.936
Thu May 7 16:55:39 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6195GB)
200GB available in /atlas/red...OK (9324GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.4T 6.0T 43% /
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 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
Thu May 7 16:55:39 SAST 2026 [elapsed=5 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
Thu May 7 16:55:39 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Thu May 7 16:55:39 SAST 2026 [elapsed=5 sec] SERVICES2
Thu May 7 16:55:39 SAST 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu May 7 16:55:43 SAST 2026 [elapsed=9 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= 936kB time=00:00:29.95 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
Thu May 7 16:58:59 SAST 2026 [elapsed=205 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: 108.94 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Thu May 7 16:59:57 SAST 2026 [elapsed=263 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu May 7 17:00:18 SAST 2026 [elapsed=284 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Thu May 7 17:00:18 SAST 2026 [elapsed=284 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.1C)
Checking CCD plane: Z0=+1694.00 DZDX=-884.00 DZDY=+2016.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu May 7 17:00:18 SAST 2026 [elapsed=284 sec] WEATHER
status weather: clear 9.5C 69% 6/8kph@215 DP5.2C/8C/d IDLE
...OK
Thu May 7 17:00:19 SAST 2026 [elapsed=285 sec] MET
status...OK
met: c=N o=Y Ro10h Co3h Wo1d Ho3h To40d Do5d IDLE
Thu May 7 17:00:19 SAST 2026 [elapsed=285 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu May 7 17:00:19 SAST 2026 [elapsed=285 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 137.86 -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 7 0.1%
A 0.051s 108 1.2%
A 0.081s 392 4.3%
A 0.111s 721 7.9%
A 0.141s 1189 13.0%
A 0.172s 1764 19.3%
A 0.202s 2466 26.9%
A 0.232s 3258 35.6%
A 0.263s 4163 45.5%
A 0.293s 5115 55.9%
A 0.323s 5991 65.4%
A 0.354s 6780 74.1%
A 0.384s 7437 81.2%
A 0.414s 8000 87.4%
A 0.444s 8466 92.5%
A 0.475s 8792 96.0%
A 0.505s 9021 98.5%
A 0.535s 9153 100.0%
B 0.020s 0 0.0%
B 0.050s 89 1.0%
B 0.081s 375 4.1%
B 0.111s 714 7.8%
B 0.141s 1179 12.9%
B 0.172s 1757 19.2%
B 0.202s 2441 26.7%
B 0.232s 3230 35.3%
B 0.263s 4136 45.2%
B 0.293s 5074 55.4%
B 0.323s 5964 65.2%
B 0.353s 6773 74.0%
B 0.384s 7436 81.2%
B 0.414s 8010 87.5%
B 0.444s 8455 92.4%
B 0.475s 8798 96.1%
B 0.505s 9031 98.7%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9057 98.9%
A 0.081s 8762 95.7%
A 0.111s 8403 91.8%
A 0.141s 7951 86.9%
A 0.171s 7374 80.6%
A 0.202s 6669 72.9%
A 0.232s 5868 64.1%
A 0.262s 4952 54.1%
A 0.292s 4016 43.9%
A 0.323s 3139 34.3%
A 0.353s 2376 26.0%
A 0.403s 1479 16.2%
A 0.435s 818 8.9%
A 0.465s 444 4.9%
A 0.495s 181 2.0%
A 0.526s 36 0.4%
A 0.556s -7 0.0%
B 0.020s 9145 99.9%
B 0.050s 9035 98.7%
B 0.081s 8772 95.8%
B 0.111s 8425 92.0%
B 0.141s 7957 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 4051 44.3%
B 0.323s 3164 34.6%
B 0.353s 2384 26.0%
B 0.383s 1713 18.7%
B 0.414s 1140 12.5%
B 0.444s 696 7.6%
B 0.474s 356 3.9%
B 0.504s 127 1.4%
B 0.535s 12 0.1%
B 0.565s -5 0.0%
A 1 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 0.556 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=1e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9221 IDLE
Thu May 7 17:01:11 SAST 2026 [elapsed=337 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:
125M May 7 17:01 /atlas/obs/03a/61168/03a61168e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu May 7 17:01:33 SAST 2026 [elapsed=359 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (46 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu May 7 17:01:33 SAST 2026 [elapsed=359 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61167.62608826|info|galildriver|using focus model: foc=9187+(4.30)*14.6+(-0.40)*60.2=9225.7
61167.62609351|info|galildriver|o 2 IN | cass: 3048028 15.24 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54003737 9222 um b=8f M [focus]
61167.62610411|info|galildriver|o 2 IN | cass: 3048029 15.24 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54003812 9222 um b=2f [cmd]
bestfocus for o...OK
Thu May 7 17:01:36 SAST 2026 [elapsed=362 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu May 7 17:02:05 SAST 2026 [elapsed=391 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
Thu May 7 17:02:06 SAST 2026 [elapsed=392 sec] NOTICES: det_dzdx=-884 is outside range +-250 from -558; det_dzdy=2016 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Thu May 7 17:02:06 SAST 2026 [elapsed=392 sec] Happy observing!
Thu May 7 17:02:06 SAST 2026 [elapsed=392 sec] Preflight took 392 seconds to complete.
Thu May 7 17:02:06 SAST 2026 [elapsed=392 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 2 0.0% A 0.051s 114 1.2% A 0.081s 376 4.1% A 0.111s 723 7.9% A 0.141s 1196 13.1% A 0.172s 1761 19.2% A 0.202s 2442 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7414 81.0% A 0.413s 7989 87.3% A 0.443s 8445 92.3% A 0.474s 8783 95.9% A 0.504s 9022 98.6% A 0.534s 9136 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 119 1.3% B 0.081s 390 4.3% B 0.111s 742 8.1% B 0.141s 1219 13.3% B 0.171s 1794 19.6% B 0.202s 2492 27.2% B 0.232s 3296 36.0% B 0.262s 4197 45.8% B 0.292s 5133 56.1% B 0.322s 5989 65.4% B 0.353s 6772 74.0% B 0.383s 7459 81.5% B 0.413s 8018 87.6% B 0.444s 8468 92.5% B 0.474s 8804 96.2% B 0.504s 9023 98.6% B 0.534s 9139 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9044 98.8% A 0.081s 8778 95.9% A 0.111s 8409 91.9% A 0.141s 7959 86.9% A 0.171s 7382 80.6% A 0.202s 6693 73.1% A 0.232s 5895 64.4% A 0.262s 4983 54.4% A 0.292s 4040 44.1% A 0.323s 3167 34.6% A 0.353s 2386 26.1% A 0.383s 1710 18.7% A 0.413s 1148 12.5% A 0.443s 692 7.6% A 0.474s 358 3.9% A 0.504s 126 1.4% A 0.534s 13 0.1% A 0.564s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9017 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.172s 7379 80.6% B 0.202s 6688 73.1% B 0.232s 5891 64.4% B 0.262s 4979 54.4% B 0.293s 4052 44.3% B 0.323s 3164 34.6% B 0.353s 2393 26.1% B 0.383s 1704 18.6% B 0.413s 1146 12.5% B 0.444s 700 7.6% B 0.474s 364 4.0% B 0.504s 138 1.5% B 0.534s 15 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R