STH Recent Preflight: 61243
Executing preflight for 61243 at Tue Jul 21 16:55:45 SAST 2026.
Log can be found in /atlas/obs/03/61243/preflight.dat.
Setting donefile '/atlas/obs/03/61243/preflight_complete.20260721145545.20850' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260721145545.20850.
Tue Jul 21 16:55:45 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Jul 21 16:55:45 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [cb8d5dfb-efb6-4b15-bc50-a2636db48694;1800]
Tue Jul 21 16:55:45 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Jul 21 16:55:46 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Jul 21 16:55:46 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Jul 21 16:55:46 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Jul 21 16:55:46 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1784645740
OK
Tue Jul 21 16:55:46 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Jul 21 16:55:46 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 Jul 21 16:55:48 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 Jul 21 16:55:48 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Jul 21 16:55:48 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Jul 21 14:55:48 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 992 1024 217 0.992 0.066 0.041
*metbox2.sth.atl .PPS. 1 u 1010 1024 377 0.285 0.039 0.010
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+146.64.24.58 155.232.19.7 2 u 212 1024 377 23.305 0.065 1.395
-ntp.as3741.net 146.64.58.41 2 u 563 1024 377 23.024 -0.173 4.372
-ntp2.as3741.net 129.134.28.123 2 u 222 1024 377 7.225 -0.798 0.190
-ntp2.inx.net.za 183.3.52.101 2 u 808 1024 377 7.311 0.062 0.028
-ntp5.inx.net.za 183.3.52.101 2 u 41 1024 377 7.499 -0.011 0.258
#102.222.156.151 155.232.19.6 2 u 65 1024 377 24.690 0.436 0.146
+ntp2.nog.net.za 80.72.67.48 3 u 848 1024 377 7.558 0.078 0.048
-139.84.231.68 ( 196.21.187.2 2 u 262 1024 377 22.739 -0.025 0.071
-ntp8.inx.net.za 210.182.58.253 2 u 989 1024 377 16.779 0.029 19.175
Tue Jul 21 16:55:52 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (5687GB)
200GB available in /atlas/red...OK (9028GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.8T 5.5T 47% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
tcs:/dev/mapper/ubuntu--vg-ubuntu--lv 98G 38G 56G 40% /
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 4.8T 8.7T 36% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 2.0T 12T 15% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 736G 13T 6% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17292
Tue Jul 21 16:55:52 SAST 2026 [elapsed=7 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 Jul 21 16:55:52 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Tue Jul 21 16:55:52 SAST 2026 [elapsed=7 sec] SERVICES2
Tue Jul 21 16:55:52 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Jul 21 16:55:56 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= 930kB time=00:00:29.76 bitrate= 256.0kbits/s speed=1.5e+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 Jul 21 16:59:13 SAST 2026 [elapsed=208 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: 183.06 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Tue Jul 21 17:00:43 SAST 2026 [elapsed=298 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Jul 21 17:01:02 SAST 2026 [elapsed=317 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.3 IDLE
Tue Jul 21 17:01:02 SAST 2026 [elapsed=317 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (4 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.6C)
Checking CCD plane: Z0=+1703.00 DZDX=-872.00 DZDY=+2292.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Jul 21 17:01:02 SAST 2026 [elapsed=317 sec] WEATHER
status weather: clear 12.9C 30% 18/22kph@341 DP16.2C/-28C/d IDLE
...OK
Tue Jul 21 17:01:03 SAST 2026 [elapsed=318 sec] MET
status...OK
met: c=N o=Y Ro22d Co4d Wo1d Ho1d To33d Do7d IDLE
Tue Jul 21 17:01:03 SAST 2026 [elapsed=318 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Jul 21 17:01:03 SAST 2026 [elapsed=318 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 211.98 -14.64, az/alt=59.91 +60.05 tracking(w) IDLE 0s
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 115 1.3%
A 0.081s 402 4.4%
A 0.111s 745 8.1%
A 0.141s 1208 13.2%
A 0.172s 1803 19.7%
A 0.202s 2490 27.2%
A 0.232s 3288 35.9%
A 0.263s 4193 45.8%
A 0.293s 5145 56.2%
A 0.323s 6018 65.7%
A 0.353s 6803 74.3%
A 0.384s 7458 81.5%
A 0.414s 8016 87.6%
A 0.444s 8480 92.6%
A 0.475s 8800 96.1%
A 0.505s 9028 98.6%
A 0.535s 9154 100.0%
B 0.020s 1 0.0%
B 0.050s 95 1.0%
B 0.081s 384 4.2%
B 0.111s 726 7.9%
B 0.141s 1197 13.1%
B 0.171s 1777 19.4%
B 0.202s 2465 26.9%
B 0.232s 3257 35.6%
B 0.262s 4166 45.5%
B 0.292s 5104 55.8%
B 0.323s 5993 65.5%
B 0.353s 6774 74.0%
B 0.383s 7436 81.2%
B 0.413s 8009 87.5%
B 0.444s 8457 92.4%
B 0.474s 8798 96.1%
B 0.504s 9028 98.6%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9072 99.1%
A 0.081s 8784 96.0%
A 0.111s 8425 92.0%
A 0.141s 7986 87.2%
A 0.171s 7395 80.8%
A 0.202s 6716 73.4%
A 0.232s 5923 64.7%
A 0.262s 5012 54.8%
A 0.292s 4073 44.5%
A 0.323s 3192 34.9%
A 0.353s 2400 26.2%
A 0.383s 1729 18.9%
A 0.414s 1163 12.7%
A 0.444s 712 7.8%
A 0.474s 364 4.0%
A 0.505s 135 1.5%
A 0.535s 16 0.2%
A 0.565s -6 0.0%
B 0.020s 9145 99.9%
B 0.050s 9032 98.7%
B 0.081s 8773 95.8%
B 0.111s 8425 92.0%
B 0.141s 7974 87.1%
B 0.171s 7401 80.8%
B 0.202s 6717 73.4%
B 0.232s 5925 64.7%
B 0.262s 5013 54.8%
B 0.292s 4080 44.6%
B 0.323s 3192 34.9%
B 0.353s 2406 26.3%
B 0.383s 1733 18.9%
B 0.413s 1156 12.6%
B 0.444s 709 7.7%
B 0.474s 365 4.0%
B 0.504s 133 1.5%
B 0.534s 16 0.2%
B 0.565s -4 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 0.565 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=1.07e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9174 IDLE
Tue Jul 21 17:01:40 SAST 2026 [elapsed=355 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.3 IDLE
taking preflight exposures:
acam...OK
acam image:
123M Jul 21 17:01 /atlas/obs/03a/61243/03a61243e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Jul 21 17:02:03 SAST 2026 [elapsed=378 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (44 seconds old)
OTA humidity level...OK (18%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Jul 21 17:02:03 SAST 2026 [elapsed=378 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61242.62643159|info|galildriver|using focus model: foc=9187+(4.30)*15.8+(-0.40)*60.2=9230.8
61242.62643695|info|galildriver|o 2 IN | cass: 3043851 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53994304 9175 um b=8f M [focus]
61242.62644604|info|galildriver|o 2 IN | cass: 3043847 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53998335 9195 um b=8f M [focus]
61242.62645768|info|galildriver|o 2 IN | cass: 3043851 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54004931 9228 um b=8f M [focus]
61242.62646340|info|galildriver|o 2 IN | cass: 3043856 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005990 9233 um b=8f M [focus]
61242.62646877|info|galildriver|o 2 IN | cass: 3043852 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006017 9233 um b=8f M [focus]
61242.62647496|info|galildriver|o 2 IN | cass: 3043855 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006007 9233 um b=0f [cmd]
bestfocus for o...OK
Tue Jul 21 17:02:08 SAST 2026 [elapsed=383 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Jul 21 17:02:34 SAST 2026 [elapsed=409 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 Jul 21 17:02:35 SAST 2026 [elapsed=410 sec] NOTICES: det_dzdx=-872 is outside range +-250 from -558; det_dzdy=2292 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Tue Jul 21 17:02:35 SAST 2026 [elapsed=410 sec] Happy observing!
Tue Jul 21 17:02:35 SAST 2026 [elapsed=410 sec] Preflight took 410 seconds to complete.
Tue Jul 21 17:02:35 SAST 2026 [elapsed=410 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 3 0.0% A 0.051s 113 1.2% A 0.081s 387 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1783 19.5% A 0.202s 2465 26.9% A 0.232s 3267 35.7% A 0.262s 4175 45.6% A 0.292s 5103 55.7% A 0.322s 5998 65.5% A 0.352s 6752 73.8% A 0.383s 7414 81.0% A 0.413s 7989 87.3% A 0.443s 8444 92.2% A 0.473s 8784 96.0% A 0.503s 9021 98.5% A 0.534s 9135 99.8% A 0.564s 9153 100.0% B 0.020s 1 0.0% B 0.050s 105 1.1% B 0.080s 370 4.0% B 0.111s 715 7.8% B 0.141s 1184 12.9% B 0.171s 1752 19.1% B 0.201s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4139 45.2% B 0.292s 5072 55.4% B 0.322s 5959 65.1% B 0.353s 6749 73.7% B 0.383s 7423 81.1% B 0.413s 7986 87.2% B 0.443s 8444 92.2% B 0.474s 8786 96.0% B 0.504s 9017 98.5% B 0.534s 9137 99.8% B 0.564s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9048 98.8% A 0.081s 8777 95.9% A 0.111s 8422 92.0% A 0.141s 7958 86.9% A 0.171s 7381 80.6% A 0.201s 6691 73.1% A 0.232s 5894 64.4% A 0.262s 4982 54.4% A 0.292s 4039 44.1% A 0.322s 3166 34.6% A 0.352s 2387 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.443s 693 7.6% A 0.473s 368 4.0% A 0.503s 131 1.4% A 0.534s 15 0.2% A 0.564s 2 0.0% B 0.020s 9142 99.9% B 0.051s 9018 98.5% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7952 86.9% B 0.172s 7377 80.6% B 0.202s 6688 73.1% B 0.232s 5892 64.4% B 0.263s 4979 54.4% B 0.293s 4055 44.3% B 0.323s 3162 34.5% B 0.353s 2393 26.1% B 0.383s 1702 18.6% B 0.414s 1147 12.5% B 0.444s 699 7.6% B 0.474s 356 3.9% B 0.505s 131 1.4% B 0.535s 14 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R