STH Recent Preflight: 61346
Executing preflight for 61346 at Sun Nov 1 18:05:01 SAST 2026.
Log can be found in /atlas/obs/03/61346/preflight.dat.
Setting donefile '/atlas/obs/03/61346/preflight_complete.20261101160501.23400' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20261101160501.23400.
Sun Nov 1 18:05:01 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Nov 1 18:05:01 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [15714f1b-f42a-4e41-a881-53214208053c;1800]
Sun Nov 1 18:05:02 SAST 2026 [elapsed=1 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun Nov 1 18:05:05 SAST 2026 [elapsed=4 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun Nov 1 18:05:05 SAST 2026 [elapsed=4 sec] auxcam is disabled.
Sun Nov 1 18:05:05 SAST 2026 [elapsed=4 sec] Skipping auxcam.
error: unknown module: vent
Sun Nov 1 18:05:05 SAST 2026 [elapsed=4 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1793549095
OK
Sun Nov 1 18:05:05 SAST 2026 [elapsed=4 sec] OPSEC
AUTO mode: ...OK
Sun Nov 1 18:05:05 SAST 2026 [elapsed=4 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
Sun Nov 1 18:05:07 SAST 2026 [elapsed=6 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
Sun Nov 1 18:05:07 SAST 2026 [elapsed=6 sec] QUEUE
0 observations queued.
Sun Nov 1 18:05:07 SAST 2026 [elapsed=6 sec] CLOCKS
admin: Sun Nov 1 16:05:07 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 415 1024 377 1.013 -0.079 0.138
+metbox2.sth.atl .PPS. 1 u 774 1024 377 0.259 -0.074 0.117
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 1030 1024 377 23.274 -0.128 0.623
+ntp.as3741.net 210.182.58.253 2 u 427 1024 377 22.829 -0.131 1.311
-ntp2.as3741.net 146.64.58.41 2 u 422 1024 367 7.310 0.042 0.435
-ntp2.inx.net.za 183.3.52.101 2 u 109 1024 377 7.331 -0.082 0.099
+ntp2.nog.net.za 80.72.67.48 3 u 653 1024 377 7.796 -0.090 0.666
+139.84.231.68 ( 196.21.187.2 2 u 434 1024 377 22.897 -0.159 0.144
-ntp7.inx.net.za 210.182.58.253 2 u 623 1024 377 16.710 0.278 0.283
-tick.sanren.ac. .TC. 1 u 836 1024 377 23.205 0.036 0.089
Sun Nov 1 18:05:16 SAST 2026 [elapsed=15 sec] DISKS
200GB available in /atlas/obs...OK (6389GB)
200GB available in /atlas/red...OK (9235GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.2T 6.1T 41% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
admin:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
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 4.6T 8.9T 35% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.9T 12T 14% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 739G 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/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Sun Nov 1 18:05:17 SAST 2026 [elapsed=16 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
Sun Nov 1 18:05:17 SAST 2026 [elapsed=16 sec] Disabling mount tracking.
Sun Nov 1 18:05:17 SAST 2026 [elapsed=16 sec] SERVICES2
Sun Nov 1 18:05:17 SAST 2026 [elapsed=16 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Nov 1 18:05:21 SAST 2026 [elapsed=20 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= 928kB time=00:00:29.69 bitrate= 256.0kbits/s speed=1.47e+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
Sun Nov 1 18:08:01 SAST 2026 [elapsed=180 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: 301.67 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Sun Nov 1 18:08:52 SAST 2026 [elapsed=231 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Nov 1 18:09:12 SAST 2026 [elapsed=251 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.2 IDLE
Sun Nov 1 18:09:12 SAST 2026 [elapsed=251 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (7 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.4C)
Checking CCD plane: Z0=+1736.00 DZDX=-931.00 DZDY=+2994.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Nov 1 18:09:12 SAST 2026 [elapsed=251 sec] WEATHER
status weather: C+ 15.4C 51% 9/18kph@293 DP9.3C/-18C/d IDLE
...OK
Sun Nov 1 18:09:13 SAST 2026 [elapsed=252 sec] MET
status...OK
met: c=Y o=N Ro26d Cx8 Wo9d Ho5d To38d Do1d wait C IDLE
Sun Nov 1 18:09:13 SAST 2026 [elapsed=252 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Nov 1 18:09:15 SAST 2026 [elapsed=254 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 330.58 -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 7 0.1%
A 0.050s 114 1.2%
A 0.081s 393 4.3%
A 0.111s 734 8.0%
A 0.141s 1190 13.0%
A 0.171s 1783 19.5%
A 0.201s 2466 26.9%
A 0.232s 3259 35.6%
A 0.262s 4163 45.5%
A 0.292s 5114 55.9%
A 0.323s 5992 65.5%
A 0.353s 6779 74.1%
A 0.384s 7458 81.5%
A 0.414s 8018 87.6%
A 0.444s 8477 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 97 1.1%
B 0.081s 383 4.2%
B 0.111s 726 7.9%
B 0.141s 1198 13.1%
B 0.172s 1776 19.4%
B 0.202s 2465 26.9%
B 0.232s 3258 35.6%
B 0.262s 4167 45.5%
B 0.293s 5101 55.7%
B 0.323s 5992 65.5%
B 0.353s 6775 74.0%
B 0.383s 7436 81.2%
B 0.414s 8009 87.5%
B 0.444s 8456 92.4%
B 0.474s 8798 96.1%
B 0.505s 9029 98.6%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8773 95.8%
A 0.111s 8414 91.9%
A 0.141s 7968 87.0%
A 0.172s 7373 80.5%
A 0.202s 6693 73.1%
A 0.232s 5897 64.4%
A 0.263s 4983 54.4%
A 0.293s 4044 44.2%
A 0.323s 3166 34.6%
A 0.354s 2375 25.9%
A 0.384s 1709 18.7%
A 0.414s 1148 12.5%
A 0.445s 697 7.6%
A 0.475s 355 3.9%
A 0.505s 130 1.4%
A 0.536s 12 0.1%
A 0.566s -5 0.0%
B 0.024s 9142 99.9%
B 0.055s 8990 98.2%
B 0.085s 8712 95.2%
B 0.115s 8343 91.1%
B 0.145s 7856 85.8%
B 0.176s 7256 79.3%
B 0.206s 6548 71.5%
B 0.236s 5729 62.6%
B 0.267s 4800 52.4%
B 0.297s 3876 42.3%
B 0.327s 3001 32.8%
B 0.358s 2226 24.3%
B 0.388s 1573 17.2%
B 0.418s 1030 11.3%
B 0.448s 611 6.7%
B 0.479s 293 3.2%
B 0.509s 98 1.1%
B 0.539s 1 0.0%
A 0 0.0mm 15 N F R | B -5 -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 0.566 seconds.
Shutter B closed to 0.0 percent in 0.539 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.06e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9312 IDLE
Sun Nov 1 18:09:53 SAST 2026 [elapsed=292 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.2 IDLE
taking preflight exposures:
acam...OK
acam image:
123M Nov 1 18:10 /atlas/obs/03a/61346/03a61346e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Nov 1 18:10:15 SAST 2026 [elapsed=314 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (78 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Nov 1 18:10:15 SAST 2026 [elapsed=314 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61345.67379749|info|galildriver|using focus model: foc=9187+(4.30)*17.2+(-0.40)*60.2=9236.9
61345.67380285|info|galildriver|o 2 IN | cass: 3036134 15.18 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54021623 9311 um b=8f M [focus]
61345.67381192|info|galildriver|o 2 IN | cass: 3036134 15.18 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54016360 9285 um b=8f M [focus]
61345.67382356|info|galildriver|o 2 IN | cass: 3036135 15.18 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54009764 9252 um b=8f M [focus]
61345.67383183|info|galildriver|o 2 IN | cass: 3036133 15.18 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54007090 9239 um b=8f M [focus]
61345.67383522|info|galildriver|o 2 IN | cass: 3036134 15.18 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54006887 9238 um b=8f M [focus]
61345.67384082|info|galildriver|o 2 IN | cass: 3036132 15.18 mm b=23 move=NO | arm: 409744 477.01 mm b=03 move=OK | foc: 54006766 9237 um b=0f [cmd]
bestfocus for o...OK
Sun Nov 1 18:10:20 SAST 2026 [elapsed=319 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Nov 1 18:10:46 SAST 2026 [elapsed=345 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
Sun Nov 1 18:10:48 SAST 2026 [elapsed=347 sec] NOTICES: det_dzdx=-931 is outside range +-250 from -558; det_dzdy=2994 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sun Nov 1 18:10:48 SAST 2026 [elapsed=347 sec] Happy observing!
Sun Nov 1 18:10:48 SAST 2026 [elapsed=347 sec] Preflight took 347 seconds to complete.
Sun Nov 1 18:10:48 SAST 2026 [elapsed=347 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 114 1.2% A 0.081s 386 4.2% A 0.111s 723 7.9% A 0.141s 1181 12.9% A 0.172s 1784 19.5% A 0.202s 2442 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5074 55.4% A 0.323s 5970 65.2% A 0.353s 6752 73.8% A 0.383s 7413 81.0% A 0.413s 7988 87.3% A 0.444s 8445 92.3% A 0.474s 8783 95.9% A 0.504s 9021 98.5% A 0.534s 9136 99.8% A 0.565s 9154 100.0% B 0.020s 1 0.0% B 0.050s 114 1.2% B 0.081s 371 4.1% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.172s 1772 19.4% B 0.202s 2465 26.9% B 0.232s 3242 35.4% B 0.262s 4137 45.2% B 0.293s 5072 55.4% B 0.323s 5986 65.4% B 0.353s 6772 74.0% B 0.383s 7420 81.1% B 0.414s 7984 87.2% B 0.444s 8443 92.2% B 0.474s 8787 96.0% B 0.504s 9017 98.5% B 0.535s 9138 99.8% B 0.565s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9055 98.9% A 0.081s 8778 95.9% A 0.111s 8434 92.1% A 0.141s 7975 87.1% A 0.172s 7400 80.8% A 0.202s 6715 73.4% A 0.232s 5923 64.7% A 0.262s 4981 54.4% A 0.293s 4038 44.1% A 0.323s 3168 34.6% A 0.353s 2410 26.3% A 0.384s 1732 18.9% A 0.414s 1163 12.7% A 0.444s 706 7.7% A 0.474s 367 4.0% A 0.505s 131 1.4% A 0.535s 13 0.1% A 0.565s 1 0.0% B 0.020s 9142 99.9% B 0.051s 9019 98.5% B 0.081s 8770 95.8% B 0.111s 8421 92.0% B 0.141s 7953 86.9% B 0.171s 7377 80.6% B 0.202s 6688 73.1% B 0.232s 5891 64.4% B 0.262s 4981 54.4% B 0.292s 4054 44.3% B 0.323s 3162 34.5% B 0.353s 2391 26.1% B 0.383s 1706 18.6% B 0.413s 1146 12.5% B 0.444s 699 7.6% B 0.474s 365 4.0% B 0.504s 137 1.5% B 0.534s 16 0.2% B 0.565s 0 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R