STH Recent Preflight: 61302
Executing preflight for 61302 at Fri Sep 18 17:32:53 SAST 2026.
Log can be found in /atlas/obs/03/61302/preflight.dat.
Setting donefile '/atlas/obs/03/61302/preflight_complete.20260918153253.4726' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260918153253.4726.
Fri Sep 18 17:32:53 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri Sep 18 17:32:53 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [5f226fc0-1da5-4a6f-a299-2fad007e134d;1800]
Fri Sep 18 17:32:53 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Fri Sep 18 17:32:54 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Fri Sep 18 17:32:54 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Fri Sep 18 17:32:54 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri Sep 18 17:32:54 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1789745566
OK
Fri Sep 18 17:32:54 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri Sep 18 17:32:54 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
Fri Sep 18 17:32:56 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 Sep 18 17:32:56 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri Sep 18 17:32:56 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Fri Sep 18 15:32:56 UTC 2026
metbox: 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 79 1024 377 1.036 0.028 0.052
*metbox2.sth.atl .PPS. 1 u 291 1024 377 0.302 0.030 0.050
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 170 1024 377 23.272 0.176 0.403
-ntp.as3741.net 146.64.8.7 2 u 250 1024 377 22.886 -0.063 1.815
+ntp2.as3741.net 155.232.19.6 2 u 595 1024 377 7.216 0.054 0.039
-ntp2.inx.net.za 183.3.52.101 2 u 224 1024 377 7.247 0.004 0.238
+ntp5.inx.net.za 210.182.58.253 2 u 112 1024 377 7.972 -0.071 0.133
#102.222.156.151 129.134.26.123 2 u 737 1024 377 23.406 -0.872 0.416
+ntp2.nog.net.za 80.72.67.48 3 u 491 1024 377 7.566 0.045 0.343
-139.84.231.68 ( 196.21.187.2 2 u 372 1024 377 22.886 0.209 1.981
+ntp8.inx.net.za 183.3.52.101 2 u 560 1024 377 16.474 0.086 0.675
Fri Sep 18 17:32:59 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (5531GB)
200GB available in /atlas/red...OK (8673GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.0T 5.3T 49% /
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 41% /
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 5.1T 8.3T 39% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.8T 12T 13% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 737G 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
Fri Sep 18 17:32:59 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 Sep 18 17:32:59 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Fri Sep 18 17:32:59 SAST 2026 [elapsed=6 sec] SERVICES2
Fri Sep 18 17:32:59 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri Sep 18 17:33:03 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= 918kB time=00:00:29.37 bitrate= 256.0kbits/s speed=1.42e+03x
audio converted to domehome.wav.
Copy dome audio to dashboards ... done
slewing to azimuth 0 (N)...OK
...WARN (webcam snap produced an empty file /tmp/azcheck1.jpg)
parking...OK
dome: AZ=90.00 CLOSED/CLOSED (0%) IDLE
Fri Sep 18 17:39:43 SAST 2026 [elapsed=410 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: 251.20 -29.49, az/alt=324.76 +86.49 idle(e) IDLE
Fri Sep 18 17:40:34 SAST 2026 [elapsed=461 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri Sep 18 17:40:53 SAST 2026 [elapsed=480 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.7 IDLE
Fri Sep 18 17:40:53 SAST 2026 [elapsed=480 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (1 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-55.5C)
Checking CCD plane: Z0=+1640.00 DZDX=-886.00 DZDY=+823.00
acam: -56C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri Sep 18 17:40:53 SAST 2026 [elapsed=480 sec] WEATHER
status weather: C+ W H+ 5.6C 97% 36/57kph@145 DP0.2C/-12C/d IDLE
...OK
Fri Sep 18 17:40:54 SAST 2026 [elapsed=481 sec] MET
status...OK
met: c=Y o=N Ro7h Cx14h Ws1 Hx1d To92d Do5d wait CWH IDLE
Fri Sep 18 17:40:54 SAST 2026 [elapsed=481 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri Sep 18 17:40:54 SAST 2026 [elapsed=481 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 280.12 -14.64, 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 104 1.1%
A 0.081s 387 4.2%
A 0.111s 735 8.0%
A 0.141s 1189 13.0%
A 0.172s 1779 19.4%
A 0.202s 2466 26.9%
A 0.232s 3258 35.6%
A 0.263s 4162 45.5%
A 0.293s 5116 55.9%
A 0.323s 5990 65.4%
A 0.353s 6780 74.1%
A 0.384s 7439 81.3%
A 0.414s 8001 87.4%
A 0.445s 8466 92.5%
A 0.475s 8795 96.1%
A 0.505s 9022 98.6%
A 0.535s 9151 100.0%
B 0.020s 0 0.0%
B 0.050s 97 1.1%
B 0.081s 378 4.1%
B 0.111s 725 7.9%
B 0.141s 1195 13.1%
B 0.172s 1774 19.4%
B 0.202s 2464 26.9%
B 0.232s 3256 35.6%
B 0.262s 4165 45.5%
B 0.293s 5103 55.7%
B 0.323s 5990 65.4%
B 0.353s 6774 74.0%
B 0.383s 7437 81.2%
B 0.414s 8013 87.5%
B 0.444s 8456 92.4%
B 0.474s 8799 96.1%
B 0.504s 9033 98.7%
B 0.535s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.051s 9060 99.0%
A 0.081s 8764 95.7%
A 0.111s 8402 91.8%
A 0.141s 7953 86.9%
A 0.172s 7355 80.3%
A 0.202s 6670 72.9%
A 0.232s 5869 64.1%
A 0.263s 4952 54.1%
A 0.293s 4017 43.9%
A 0.323s 3137 34.3%
A 0.354s 2351 25.7%
A 0.384s 1688 18.4%
A 0.414s 1130 12.3%
A 0.446s 683 7.5%
A 0.482s 310 3.4%
A 0.514s 83 0.9%
A 0.550s -6 0.0%
B 0.020s 9145 99.9%
B 0.050s 9036 98.7%
B 0.081s 8776 95.9%
B 0.111s 8426 92.0%
B 0.141s 7959 86.9%
B 0.172s 7380 80.6%
B 0.202s 6696 73.1%
B 0.232s 5899 64.4%
B 0.262s 4956 54.1%
B 0.293s 4021 43.9%
B 0.323s 3136 34.3%
B 0.353s 2360 25.8%
B 0.384s 1691 18.5%
B 0.414s 1123 12.3%
B 0.444s 683 7.5%
B 0.475s 345 3.8%
B 0.505s 119 1.3%
B 0.535s 9 0.1%
A 1 0.0mm 15 N F R | B -7 -0.2mm 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 0.550 seconds.
Shutter B closed to 0.1 percent in 0.535 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 224kB time=00:00:07.16 bitrate= 256.1kbits/s speed=1.05e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9201 IDLE
Fri Sep 18 17:41:30 SAST 2026 [elapsed=517 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.7 IDLE
taking preflight exposures:
acam...OK
acam image:
122M Sep 18 17:41 /atlas/obs/03a/61302/03a61302e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri Sep 18 17:41:52 SAST 2026 [elapsed=539 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (62 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri Sep 18 17:41:52 SAST 2026 [elapsed=539 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61301.65408565|info|galildriver|using focus model: foc=9187+(4.30)*9.4+(-0.40)*60.1=9203.4
61301.65409031|info|galildriver|o 2 IN | cass: 3042713 15.21 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53999745 9202 um b=0f [cmd]
bestfocus for o...OK
Fri Sep 18 17:41:54 SAST 2026 [elapsed=541 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri Sep 18 17:42:20 SAST 2026 [elapsed=567 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 Sep 18 17:42:21 SAST 2026 [elapsed=568 sec] NOTICES: det_dzdx=-886 is outside range +-250 from -558; det_dzdy=823 is outside range +-250 from -1915;
Fri Sep 18 17:42:21 SAST 2026 [elapsed=568 sec] WARNINGS: webcam snap produced an empty file /tmp/azcheck1.jpg;
Preflight completed with warnings. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Fri Sep 18 17:42:21 SAST 2026 [elapsed=568 sec] Happy observing!
Fri Sep 18 17:42:21 SAST 2026 [elapsed=568 sec] Preflight took 568 seconds to complete.
Fri Sep 18 17:42:21 SAST 2026 [elapsed=568 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 384 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1782 19.5% A 0.202s 2466 26.9% A 0.232s 3267 35.7% A 0.262s 4173 45.6% A 0.292s 5104 55.8% A 0.322s 5998 65.5% A 0.353s 6774 74.0% A 0.383s 7433 81.2% A 0.413s 7987 87.3% A 0.443s 8446 92.3% A 0.473s 8785 96.0% A 0.504s 9022 98.6% A 0.534s 9137 99.8% A 0.564s 9154 100.0% B 0.020s 1 0.0% B 0.050s 107 1.2% B 0.080s 369 4.0% B 0.111s 715 7.8% B 0.141s 1185 12.9% B 0.171s 1752 19.1% B 0.201s 2442 26.7% B 0.232s 3242 35.4% B 0.262s 4137 45.2% B 0.292s 5072 55.4% B 0.322s 5932 64.8% B 0.352s 6727 73.5% B 0.382s 7400 80.8% B 0.413s 7969 87.1% B 0.443s 8430 92.1% B 0.473s 8777 95.9% B 0.503s 9011 98.4% B 0.534s 9135 99.8% B 0.564s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9050 98.9% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7959 86.9% A 0.171s 7381 80.6% A 0.202s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4981 54.4% A 0.292s 4038 44.1% A 0.323s 3166 34.6% A 0.353s 2386 26.1% A 0.383s 1711 18.7% A 0.413s 1146 12.5% A 0.444s 692 7.6% A 0.474s 358 3.9% A 0.504s 124 1.4% A 0.534s 13 0.1% A 0.565s 1 0.0% B 0.020s 9145 99.9% B 0.050s 9022 98.6% B 0.081s 8775 95.9% B 0.111s 8423 92.0% B 0.141s 7955 86.9% B 0.171s 7381 80.6% B 0.202s 6691 73.1% B 0.232s 5921 64.7% B 0.262s 4984 54.4% B 0.292s 4087 44.6% B 0.322s 3193 34.9% B 0.353s 2417 26.4% B 0.383s 1722 18.8% B 0.413s 1164 12.7% B 0.443s 712 7.8% B 0.473s 366 4.0% B 0.504s 139 1.5% B 0.534s 16 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R