STH Recent Preflight: 61176
Executing preflight for 61176 at Fri May 15 16:49:49 SAST 2026.
Log can be found in /atlas/obs/03/61176/preflight.dat.
Setting donefile '/atlas/obs/03/61176/preflight_complete.20260515144949.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260515144949.11042.
Fri May 15 16:49:50 SAST 2026 [elapsed=1 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri May 15 16:49:50 SAST 2026 [elapsed=1 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [5d5bad4e-08ec-42af-98f3-3ca059528ba6;1800]
Fri May 15 16:49:50 SAST 2026 [elapsed=1 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Fri May 15 16:49:51 SAST 2026 [elapsed=2 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Fri May 15 16:49:51 SAST 2026 [elapsed=2 sec] auxcam is disabled.
Fri May 15 16:49:51 SAST 2026 [elapsed=2 sec] Skipping auxcam.
error: unknown module: vent
Fri May 15 16:49:51 SAST 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1778856589
OK
Fri May 15 16:49:51 SAST 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Fri May 15 16:49:51 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
Fri May 15 16:49:52 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
Fri May 15 16:49:53 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Fri May 15 16:49:53 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Fri May 15 14:49:53 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 454 512 377 1.039 -0.440 1.040
+metbox2.sth.atl .PPS. 1 u 55 512 377 0.319 -0.619 0.326
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 525 512 377 24.267 -0.484 1.454
+ntp.as3741.net 210.182.58.253 2 u 26 512 377 22.801 -0.197 0.757
+ntp2.as3741.net 155.232.19.7 2 u 468 512 377 7.268 -0.216 0.813
+ntp2.inx.net.za 183.3.52.101 2 u 66 512 377 7.291 -0.449 0.224
102.222.100.153 196.21.187.2 2 u 16d 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 183.3.52.101 2 u 54 512 377 7.400 -0.680 0.647
-flipping.cloudh 80.72.67.48 3 u 111 512 377 7.761 -0.434 0.254
102.216.37.99 ( 210.182.58.253 2 u 102d 1024 0 73.586 -0.040 0.000
-139.84.231.151 102.176.229.251 2 u 17 512 377 22.733 2.598 0.751
Fri May 15 16:49:55 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6609GB)
200GB available in /atlas/red...OK (9367GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.0T 6.4T 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 4.5T 9.0T 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
Fri May 15 16:49:55 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
Fri May 15 16:49:55 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Fri May 15 16:49:55 SAST 2026 [elapsed=6 sec] SERVICES2
Fri May 15 16:49:55 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri May 15 16:49:59 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= 934kB time=00:00:29.88 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/OPEN (0%) IDLE
Fri May 15 16:52:32 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: 115.21 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Fri May 15 16:53:30 SAST 2026 [elapsed=221 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri May 15 16:53:52 SAST 2026 [elapsed=243 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=46.7 IDLE
Fri May 15 16:53:52 SAST 2026 [elapsed=243 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.7C)
Checking CCD plane: Z0=+1721.00 DZDX=-893.00 DZDY=+2621.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri May 15 16:53:52 SAST 2026 [elapsed=243 sec] WEATHER
status weather: clear 14.0C 35% 10/11kph@292 DP14.0C/-34C/d IDLE
...OK
Fri May 15 16:53:52 SAST 2026 [elapsed=243 sec] MET
status...OK
met: c=N o=Y Ro2d Co1d Wo2d Ho1d To48d Do5d IDLE
Fri May 15 16:53:52 SAST 2026 [elapsed=243 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri May 15 16:53:53 SAST 2026 [elapsed=244 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 144.13 -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 -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 8 0.1%
A 0.050s 108 1.2%
A 0.081s 392 4.3%
A 0.111s 734 8.0%
A 0.141s 1189 13.0%
A 0.171s 1782 19.5%
A 0.202s 2466 26.9%
A 0.232s 3259 35.6%
A 0.262s 4163 45.5%
A 0.293s 5116 55.9%
A 0.323s 5989 65.4%
A 0.353s 6780 74.1%
A 0.383s 7440 81.3%
A 0.414s 7998 87.4%
A 0.444s 8465 92.5%
A 0.474s 8794 96.1%
A 0.505s 9021 98.5%
A 0.535s 9148 99.9%
B 0.020s 2 0.0%
B 0.051s 104 1.1%
B 0.081s 394 4.3%
B 0.111s 739 8.1%
B 0.142s 1233 13.5%
B 0.172s 1819 19.9%
B 0.202s 2514 27.5%
B 0.232s 3310 36.2%
B 0.263s 4229 46.2%
B 0.293s 5161 56.4%
B 0.323s 6049 66.1%
B 0.353s 6820 74.5%
B 0.384s 7475 81.7%
B 0.414s 8043 87.9%
B 0.444s 8466 92.5%
B 0.474s 8807 96.2%
B 0.505s 9033 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9064 99.0%
A 0.081s 8772 95.8%
A 0.111s 8415 91.9%
A 0.141s 7968 87.0%
A 0.171s 7372 80.5%
A 0.202s 6691 73.1%
A 0.232s 5897 64.4%
A 0.262s 4982 54.4%
A 0.292s 4043 44.2%
A 0.322s 3166 34.6%
A 0.353s 2377 26.0%
A 0.383s 1709 18.7%
A 0.413s 1147 12.5%
A 0.443s 699 7.6%
A 0.474s 354 3.9%
A 0.504s 128 1.4%
A 0.534s 14 0.2%
A 0.565s -6 0.0%
B 0.020s 9145 99.9%
B 0.050s 9028 98.6%
B 0.081s 8763 95.7%
B 0.111s 8411 91.9%
B 0.142s 7940 86.7%
B 0.172s 7359 80.4%
B 0.202s 6671 72.9%
B 0.232s 5869 64.1%
B 0.263s 4954 54.1%
B 0.293s 4021 43.9%
B 0.323s 3136 34.3%
B 0.353s 2361 25.8%
B 0.384s 1692 18.5%
B 0.414s 1141 12.5%
B 0.444s 697 7.6%
B 0.474s 356 3.9%
B 0.505s 128 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 99.9 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=1.14e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9229 IDLE
Fri May 15 16:54:52 SAST 2026 [elapsed=303 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:
125M May 15 16:55 /atlas/obs/03a/61176/03a61176e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri May 15 16:55:15 SAST 2026 [elapsed=326 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (28 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri May 15 16:55:15 SAST 2026 [elapsed=326 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61175.62170628|info|galildriver|using focus model: foc=9187+(4.30)*16.4+(-0.40)*60.2=9233.4
61175.62171152|info|galildriver|o 2 IN | cass: 3046671 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54005336 9230 um b=8f M [focus]
61175.62172213|info|galildriver|o 2 IN | cass: 3046671 15.23 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54005405 9230 um b=2f [cmd]
bestfocus for o...OK
Fri May 15 16:55:17 SAST 2026 [elapsed=328 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri May 15 16:55:47 SAST 2026 [elapsed=358 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
Fri May 15 16:55:48 SAST 2026 [elapsed=359 sec] NOTICES: det_dzdx=-893 is outside range +-250 from -558; det_dzdy=2621 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Fri May 15 16:55:48 SAST 2026 [elapsed=359 sec] Happy observing!
Fri May 15 16:55:48 SAST 2026 [elapsed=359 sec] Preflight took 359 seconds to complete.
Fri May 15 16:55:48 SAST 2026 [elapsed=359 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 106 1.2% A 0.081s 376 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.171s 1762 19.2% A 0.202s 2443 26.7% A 0.232s 3238 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 7990 87.3% A 0.444s 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 0 0.0% B 0.050s 122 1.3% B 0.081s 388 4.2% B 0.111s 742 8.1% B 0.141s 1218 13.3% B 0.171s 1794 19.6% B 0.202s 2490 27.2% B 0.232s 3296 36.0% B 0.262s 4199 45.9% B 0.292s 5131 56.1% B 0.323s 6014 65.7% B 0.353s 6795 74.2% B 0.383s 7463 81.5% B 0.413s 8019 87.6% B 0.444s 8456 92.4% B 0.474s 8796 96.1% B 0.504s 9022 98.6% B 0.534s 9138 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.051s 9049 98.9% A 0.081s 8767 95.8% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.172s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4982 54.4% A 0.293s 4039 44.1% A 0.323s 3165 34.6% A 0.353s 2387 26.1% A 0.383s 1710 18.7% A 0.414s 1147 12.5% A 0.444s 693 7.6% A 0.474s 358 3.9% A 0.505s 125 1.4% A 0.535s 14 0.2% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9010 98.4% B 0.081s 8760 95.7% B 0.111s 8407 91.8% B 0.141s 7951 86.9% B 0.171s 7357 80.4% B 0.202s 6664 72.8% B 0.232s 5891 64.4% B 0.262s 4979 54.4% B 0.292s 4054 44.3% B 0.322s 3163 34.6% B 0.353s 2391 26.1% B 0.383s 1703 18.6% B 0.413s 1147 12.5% B 0.444s 700 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 1 0.0mm 15 N F R