STH Recent Preflight: 61173
Executing preflight for 61173 at Tue May 12 16:51:50 SAST 2026.
Log can be found in /atlas/obs/03/61173/preflight.dat.
Setting donefile '/atlas/obs/03/61173/preflight_complete.20260512145150.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260512145150.11042.
Tue May 12 16:51:50 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue May 12 16:51:50 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [2a10d480-836d-405a-bff7-7dc7ab670169;1800]
Tue May 12 16:51:50 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue May 12 16:51:51 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue May 12 16:51:51 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue May 12 16:51:51 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue May 12 16:51:51 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1778597506
OK
Tue May 12 16:51:51 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue May 12 16:51:51 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
Tue May 12 16:51:53 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
Tue May 12 16:51:53 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue May 12 16:51:53 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue May 12 14:51:53 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 55 1024 377 1.043 -0.045 0.167
+metbox2.sth.atl .PPS. 1 u 449 1024 377 0.304 -0.056 0.119
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 569 1024 377 23.687 -1.021 0.447
+ntp.as3741.net 146.64.58.41 2 u 572 1024 377 22.237 -0.150 0.244
+ntp2.as3741.net 155.232.19.7 2 u 585 1024 377 6.674 -0.071 0.124
+ntp2.inx.net.za 183.3.52.101 2 u 523 1024 377 6.651 -0.045 0.156
102.222.100.153 196.21.187.2 2 u 13d 1024 0 7.937 0.836 0.000
+ntp5.inx.net.za 102.176.229.251 2 u 664 1024 377 6.951 -0.062 0.103
+flipping.cloudh 80.72.67.48 3 u 368 1024 377 7.189 0.066 0.139
102.216.37.99 ( 210.182.58.253 2 u 99d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 102.176.229.251 2 u 510 1024 377 22.266 0.309 0.595
Tue May 12 16:51:55 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6569GB)
200GB available in /atlas/red...OK (9436GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.0T 6.3T 39% /
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 4.4T 9.0T 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 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
Tue May 12 16:51:55 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
Tue May 12 16:51:55 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Tue May 12 16:51:56 SAST 2026 [elapsed=6 sec] SERVICES2
Tue May 12 16:51:56 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue May 12 16:52:00 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= 926kB time=00:00:29.63 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
Tue May 12 16:55:19 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: 112.95 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Tue May 12 16:56:18 SAST 2026 [elapsed=268 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue May 12 16:56:40 SAST 2026 [elapsed=290 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.8 IDLE
Tue May 12 16:56:40 SAST 2026 [elapsed=290 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (0 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.4C)
Checking CCD plane: Z0=+1669.00 DZDX=-881.00 DZDY=+1422.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue May 12 16:56:40 SAST 2026 [elapsed=290 sec] WEATHER
status weather: R+ H+ 8.4C 100% 103/109kph@314 DP-0.0C/-0C/d IDLE
...OK
Tue May 12 16:56:40 SAST 2026 [elapsed=290 sec] MET
status...OK
met: c=Y o=N Rx1d Cx35 Wx1 Hx2d To45d Do2d wait RCWH IDLE
Tue May 12 16:56:40 SAST 2026 [elapsed=290 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue May 12 16:56:40 SAST 2026 [elapsed=290 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 141.88 -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 9 0.1%
A 0.051s 113 1.2%
A 0.081s 390 4.3%
A 0.111s 745 8.1%
A 0.142s 1207 13.2%
A 0.172s 1802 19.7%
A 0.202s 2489 27.2%
A 0.233s 3286 35.9%
A 0.263s 4193 45.8%
A 0.293s 5144 56.2%
A 0.323s 6018 65.7%
A 0.354s 6803 74.3%
A 0.384s 7456 81.5%
A 0.414s 8018 87.6%
A 0.445s 8478 92.6%
A 0.475s 8801 96.1%
A 0.505s 9028 98.6%
A 0.536s 9155 100.0%
B 0.020s 2 0.0%
B 0.050s 104 1.1%
B 0.081s 392 4.3%
B 0.111s 739 8.1%
B 0.141s 1215 13.3%
B 0.171s 1797 19.6%
B 0.202s 2489 27.2%
B 0.232s 3257 35.6%
B 0.262s 4196 45.8%
B 0.293s 5102 55.7%
B 0.323s 6018 65.7%
B 0.353s 6797 74.3%
B 0.384s 7456 81.5%
B 0.414s 8026 87.7%
B 0.444s 8468 92.5%
B 0.475s 8808 96.2%
B 0.505s 9037 98.7%
B 0.535s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9065 99.0%
A 0.081s 8764 95.7%
A 0.111s 8403 91.8%
A 0.142s 7951 86.9%
A 0.172s 7375 80.6%
A 0.202s 6670 72.9%
A 0.232s 5867 64.1%
A 0.263s 4953 54.1%
A 0.293s 4017 43.9%
A 0.323s 3137 34.3%
A 0.353s 2353 25.7%
A 0.384s 1709 18.7%
A 0.414s 1129 12.3%
A 0.444s 698 7.6%
A 0.474s 355 3.9%
A 0.505s 126 1.4%
A 0.535s 12 0.1%
A 0.565s -8 0.0%
B 0.020s 9144 99.9%
B 0.050s 9029 98.6%
B 0.081s 8764 95.7%
B 0.111s 8413 91.9%
B 0.141s 7942 86.8%
B 0.171s 7361 80.4%
B 0.202s 6672 72.9%
B 0.232s 5869 64.1%
B 0.262s 4954 54.1%
B 0.292s 4022 43.9%
B 0.323s 3135 34.2%
B 0.353s 2361 25.8%
B 0.383s 1713 18.7%
B 0.413s 1139 12.4%
B 0.444s 696 7.6%
B 0.474s 346 3.8%
B 0.504s 120 1.3%
B 0.535s 8 0.1%
A 1 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 99.9 percent in 0.535 seconds.
Shutter A closed to 0.0 percent in 0.565 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=1.11e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9206 IDLE
Tue May 12 16:57:19 SAST 2026 [elapsed=329 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.8 IDLE
taking preflight exposures:
acam...OK
acam image:
122M May 12 16:57 /atlas/obs/03a/61173/03a61173e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue May 12 16:57:41 SAST 2026 [elapsed=351 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (84 seconds old)
OTA humidity level...WARNING (29%)
WARNING (OTA humidity > 25 (29%); )
Dome humidity exists...OK
Dome humidity is current... OK
Tue May 12 16:57:41 SAST 2026 [elapsed=351 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61172.62340423|info|galildriver|using focus model: foc=9187+(4.30)*11.0+(-0.40)*60.2=9210.2
61172.62340948|info|galildriver|o 2 IN | cass: 3049717 15.25 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54000684 9207 um b=8f M [focus]
61172.62342010|info|galildriver|o 2 IN | cass: 3049715 15.25 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54000762 9207 um b=2f [cmd]
bestfocus for o...OK
Tue May 12 16:57:44 SAST 2026 [elapsed=354 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue May 12 16:58:13 SAST 2026 [elapsed=383 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
Tue May 12 16:58:15 SAST 2026 [elapsed=385 sec] NOTICES: det_dzdx=-881 is outside range +-250 from -558; det_dzdy=1422 is outside range +-250 from -1915;
Tue May 12 16:58:15 SAST 2026 [elapsed=385 sec] WARNINGS: OTA humidity > 25 (29%);
Preflight completed with warnings. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Tue May 12 16:58:15 SAST 2026 [elapsed=385 sec] Happy observing!
Tue May 12 16:58:15 SAST 2026 [elapsed=385 sec] Preflight took 385 seconds to complete.
Tue May 12 16:58:15 SAST 2026 [elapsed=385 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 4 0.0% A 0.050s 114 1.2% A 0.081s 385 4.2% A 0.111s 737 8.1% A 0.141s 1196 13.1% A 0.171s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3267 35.7% A 0.262s 4174 45.6% A 0.292s 5103 55.7% A 0.322s 5997 65.5% A 0.353s 6776 74.0% A 0.383s 7433 81.2% A 0.413s 7989 87.3% A 0.443s 8445 92.3% A 0.474s 8782 95.9% A 0.504s 9028 98.6% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 380 4.2% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1773 19.4% B 0.201s 2443 26.7% B 0.232s 3239 35.4% B 0.262s 4138 45.2% B 0.292s 5074 55.4% B 0.322s 5960 65.1% B 0.353s 6747 73.7% B 0.383s 7421 81.1% B 0.413s 7986 87.2% B 0.443s 8443 92.2% B 0.474s 8786 96.0% B 0.504s 9018 98.5% B 0.534s 9136 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9043 98.8% A 0.081s 8767 95.8% A 0.111s 8408 91.9% A 0.141s 7941 86.7% A 0.171s 7360 80.4% A 0.202s 6668 72.8% A 0.232s 5866 64.1% A 0.262s 4951 54.1% A 0.292s 4009 43.8% A 0.323s 3139 34.3% A 0.353s 2363 25.8% A 0.383s 1690 18.5% A 0.413s 1147 12.5% A 0.444s 693 7.6% A 0.474s 350 3.8% A 0.504s 125 1.4% A 0.534s 13 0.1% A 0.564s 2 0.0% B 0.020s 9141 99.9% B 0.050s 9009 98.4% B 0.081s 8761 95.7% B 0.111s 8406 91.8% B 0.141s 7951 86.9% B 0.171s 7377 80.6% B 0.201s 6688 73.1% B 0.232s 5891 64.4% B 0.262s 4980 54.4% B 0.292s 4053 44.3% B 0.322s 3162 34.5% B 0.353s 2391 26.1% B 0.383s 1704 18.6% B 0.413s 1146 12.5% B 0.443s 699 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% B 0.534s 14 0.2% B 0.564s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R