STH Recent Preflight: 61167
Executing preflight for 61167 at Wed May 6 16:56:21 SAST 2026.
Log can be found in /atlas/obs/03/61167/preflight.dat.
Setting donefile '/atlas/obs/03/61167/preflight_complete.20260506145621.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260506145621.11042.
Wed May 6 16:56:21 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed May 6 16:56:21 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [31a9915d-3bb2-448c-b882-b8c71edeb1a3;1800]
Wed May 6 16:56:21 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed May 6 16:56:22 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed May 6 16:56:22 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed May 6 16:56:22 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed May 6 16:56:22 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1778079373
OK
Wed May 6 16:56:22 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed May 6 16:56:22 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
Wed May 6 16:56:23 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
Wed May 6 16:56:24 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed May 6 16:56:24 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Wed May 6 14:56:24 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 933 1024 343 0.990 -0.124 0.161
*metbox2.sth.atl .PPS. 1 u 588 1024 377 0.293 -0.209 0.288
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 519 1024 377 24.273 -0.194 0.302
-ntp.as3741.net 146.64.58.41 2 u 368 1024 377 23.652 0.111 0.769
-ntp2.as3741.net 155.232.19.7 2 u 480 1024 377 7.289 -0.066 0.207
+ntp2.inx.net.za 196.21.187.2 2 u 785 1024 377 7.342 -0.080 0.253
102.222.100.153 196.21.187.2 2 u 7d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 196.21.187.2 2 u 325 1024 377 7.879 -0.040 0.313
+flipping.cloudh 80.72.67.48 3 u 730 1024 377 8.122 -0.142 0.272
102.216.37.99 ( 210.182.58.253 2 u 93d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 102.176.229.251 2 u 751 1024 377 22.747 1.031 0.484
Wed May 6 16:56:26 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6197GB)
200GB available in /atlas/red...OK (9323GB)
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 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
Wed May 6 16:56:27 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
Wed May 6 16:56:27 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Wed May 6 16:56:27 SAST 2026 [elapsed=6 sec] SERVICES2
Wed May 6 16:56:27 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed May 6 16:56:31 SAST 2026 [elapsed=10 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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.43e+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
Wed May 6 16:59:50 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: 108.17 -29.49, az/alt=324.69 +86.49 idle(e) IDLE
Wed May 6 17:00:49 SAST 2026 [elapsed=268 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed May 6 17:01:10 SAST 2026 [elapsed=289 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Wed May 6 17:01:10 SAST 2026 [elapsed=289 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (6 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.7C)
Checking CCD plane: Z0=+1645.00 DZDX=-870.00 DZDY=+922.00
acam: -56C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed May 6 17:01:10 SAST 2026 [elapsed=289 sec] WEATHER
status weather: C+ H+ 5.1C 96% 28/37kph@247 DP0.7C/8C/d IDLE
...OK
Wed May 6 17:01:10 SAST 2026 [elapsed=289 sec] MET
status...OK
met: c=Y o=N Ro30 Cx4h Wo4h Hx22h To39d Do4d wait CH IDLE
Wed May 6 17:01:10 SAST 2026 [elapsed=289 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed May 6 17:01:10 SAST 2026 [elapsed=289 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 137.09 -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 8 0.1%
A 0.051s 112 1.2%
A 0.081s 399 4.4%
A 0.111s 745 8.1%
A 0.142s 1207 13.2%
A 0.172s 1801 19.7%
A 0.202s 2490 27.2%
A 0.233s 3286 35.9%
A 0.263s 4192 45.8%
A 0.293s 5144 56.2%
A 0.324s 6020 65.8%
A 0.354s 6804 74.3%
A 0.384s 7455 81.4%
A 0.415s 8019 87.6%
A 0.445s 8478 92.6%
A 0.475s 8812 96.3%
A 0.506s 9036 98.7%
A 0.536s 9154 100.0%
B 0.020s 2 0.0%
B 0.050s 103 1.1%
B 0.081s 389 4.2%
B 0.111s 739 8.1%
B 0.141s 1213 13.3%
B 0.172s 1794 19.6%
B 0.202s 2489 27.2%
B 0.232s 3283 35.9%
B 0.262s 4196 45.8%
B 0.293s 5133 56.1%
B 0.323s 6020 65.8%
B 0.353s 6796 74.2%
B 0.384s 7457 81.5%
B 0.414s 8027 87.7%
B 0.444s 8469 92.5%
B 0.474s 8808 96.2%
B 0.505s 9037 98.7%
B 0.535s 9150 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9059 99.0%
A 0.081s 8776 95.9%
A 0.111s 8404 91.8%
A 0.141s 7951 86.9%
A 0.172s 7354 80.3%
A 0.202s 6669 72.9%
A 0.232s 5868 64.1%
A 0.263s 4953 54.1%
A 0.293s 4017 43.9%
A 0.323s 3139 34.3%
A 0.353s 2352 25.7%
A 0.384s 1688 18.4%
A 0.414s 1129 12.3%
A 0.444s 686 7.5%
A 0.475s 345 3.8%
A 0.505s 122 1.3%
A 0.535s 8 0.1%
B 0.020s 9145 99.9%
B 0.050s 9030 98.6%
B 0.081s 8766 95.8%
B 0.111s 8413 91.9%
B 0.141s 7943 86.8%
B 0.172s 7360 80.4%
B 0.202s 6671 72.9%
B 0.232s 5870 64.1%
B 0.262s 4955 54.1%
B 0.293s 4021 43.9%
B 0.323s 3136 34.3%
B 0.353s 2360 25.8%
B 0.384s 1692 18.5%
B 0.414s 1123 12.3%
B 0.444s 683 7.5%
B 0.474s 345 3.8%
B 0.505s 121 1.3%
B 0.535s 8 0.1%
A 0 0.0mm 15 N F R | B -6 -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 0.535 seconds.
Shutter A closed to 0.1 percent in 0.535 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 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=9204 IDLE
Wed May 6 17:01:47 SAST 2026 [elapsed=326 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:
123M May 6 17:02 /atlas/obs/03a/61167/03a61167e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed May 6 17:02:10 SAST 2026 [elapsed=349 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (83 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed May 6 17:02:10 SAST 2026 [elapsed=349 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61166.62650924|info|galildriver|using focus model: foc=9187+(4.30)*9.5+(-0.40)*60.2=9203.8
61166.62651413|info|galildriver|o 2 IN | cass: 3051349 15.26 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54000326 9205 um b=2f [cmd]
bestfocus for o...OK
Wed May 6 17:02:11 SAST 2026 [elapsed=350 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed May 6 17:02:40 SAST 2026 [elapsed=379 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
Wed May 6 17:02:41 SAST 2026 [elapsed=380 sec] NOTICES: det_dzdx=-870 is outside range +-250 from -558; det_dzdy=922 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Wed May 6 17:02:41 SAST 2026 [elapsed=380 sec] Happy observing!
Wed May 6 17:02:41 SAST 2026 [elapsed=380 sec] Preflight took 380 seconds to complete.
Wed May 6 17:02:41 SAST 2026 [elapsed=380 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 0.050s 108 1.2% A 0.081s 375 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.172s 1760 19.2% A 0.202s 2442 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.293s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6753 73.8% A 0.383s 7413 81.0% A 0.414s 7988 87.3% A 0.444s 8445 92.3% A 0.474s 8784 96.0% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 119 1.3% B 0.081s 390 4.3% B 0.111s 741 8.1% B 0.141s 1220 13.3% B 0.171s 1794 19.6% B 0.202s 2491 27.2% B 0.232s 3296 36.0% B 0.262s 4197 45.8% B 0.292s 5132 56.1% B 0.323s 6015 65.7% B 0.353s 6796 74.2% B 0.383s 7459 81.5% B 0.414s 8018 87.6% B 0.444s 8468 92.5% B 0.474s 8803 96.2% B 0.504s 9028 98.6% B 0.535s 9141 99.9% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.051s 9043 98.8% A 0.081s 8767 95.8% A 0.111s 8408 91.9% A 0.141s 7942 86.8% A 0.171s 7359 80.4% A 0.202s 6669 72.9% A 0.232s 5866 64.1% A 0.262s 4951 54.1% A 0.292s 4009 43.8% A 0.323s 3166 34.6% A 0.353s 2387 26.1% A 0.383s 1710 18.7% A 0.413s 1148 12.5% A 0.443s 693 7.6% A 0.474s 358 3.9% A 0.504s 125 1.4% A 0.534s 13 0.1% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9008 98.4% B 0.081s 8761 95.7% B 0.111s 8419 92.0% B 0.141s 7935 86.7% B 0.171s 7357 80.4% B 0.202s 6690 73.1% B 0.232s 5892 64.4% B 0.262s 4978 54.4% B 0.292s 4052 44.3% B 0.323s 3164 34.6% B 0.353s 2394 26.2% B 0.383s 1703 18.6% B 0.413s 1145 12.5% B 0.443s 699 7.6% B 0.474s 355 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.564s 1 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R