STH Recent Preflight: 61303
Executing preflight for 61303 at Sat Sep 19 17:33:42 SAST 2026.
Log can be found in /atlas/obs/03/61303/preflight.dat.
Setting donefile '/atlas/obs/03/61303/preflight_complete.20260919153342.4726' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260919153342.4726.
Sat Sep 19 17:33:42 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Sep 19 17:33:42 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [693f915d-dfd3-4b6b-bb03-d2599aaed8a6;1800]
Sat Sep 19 17:33:42 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat Sep 19 17:33:42 SAST 2026 [elapsed=0 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat Sep 19 17:33:42 SAST 2026 [elapsed=0 sec] auxcam is disabled.
Sat Sep 19 17:33:42 SAST 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Sat Sep 19 17:33:42 SAST 2026 [elapsed=0 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1789832021
OK
Sat Sep 19 17:33:42 SAST 2026 [elapsed=0 sec] OPSEC
AUTO mode: ...OK
Sat Sep 19 17:33:42 SAST 2026 [elapsed=0 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
Sat Sep 19 17:33:44 SAST 2026 [elapsed=2 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
Sat Sep 19 17:33:44 SAST 2026 [elapsed=2 sec] QUEUE
0 observations queued.
Sat Sep 19 17:33:44 SAST 2026 [elapsed=2 sec] CLOCKS
admin: Sat Sep 19 15:33:44 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 597 1024 377 1.039 -0.054 0.561
+metbox2.sth.atl .PPS. 1 u 411 1024 377 0.303 -0.061 0.036
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
#zibbi.ngei.csir 155.232.19.7 2 u 385 1024 377 23.253 -0.335 0.588
-ntp.as3741.net 146.64.58.41 2 u 378 1024 377 22.802 -0.178 0.202
+ntp2.as3741.net 155.232.19.6 2 u 279 1024 377 7.296 0.000 0.119
-ntp2.inx.net.za 196.21.187.2 2 u 559 1024 377 7.211 -0.195 0.213
-ntp5.inx.net.za 183.3.52.101 2 u 424 1024 377 7.909 -0.183 0.153
-102.222.156.151 196.21.187.2 2 u 520 1024 377 23.441 0.300 2.943
-ntp2.nog.net.za 80.72.67.48 3 u 289 1024 377 7.534 -0.039 0.146
-139.84.231.68 ( 196.21.187.2 2 u 459 1024 377 28.804 2.660 2.292
-ntp8.inx.net.za 102.176.229.251 2 u 341 1024 377 16.345 -0.078 0.075
Sat Sep 19 17:33:47 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (5617GB)
200GB available in /atlas/red...OK (8674GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.9T 5.4T 48% /
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
Sat Sep 19 17:33:48 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
Sat Sep 19 17:33:48 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Sat Sep 19 17:33:48 SAST 2026 [elapsed=6 sec] SERVICES2
Sat Sep 19 17:33:48 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Sep 19 17:33:52 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= 914kB time=00:00:29.24 bitrate= 256.0kbits/s speed=1.37e+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
Sat Sep 19 17:37:06 SAST 2026 [elapsed=204 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: 251.53 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Sat Sep 19 17:37:57 SAST 2026 [elapsed=255 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Sep 19 17:38:16 SAST 2026 [elapsed=274 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.7 IDLE
Sat Sep 19 17:38:16 SAST 2026 [elapsed=274 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 (-54.6C)
Checking CCD plane: Z0=+1716.00 DZDX=-892.00 DZDY=+2509.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Sep 19 17:38:16 SAST 2026 [elapsed=274 sec] WEATHER
status weather: C H 13.0C 85% 19/21kph@52 DP1.7C/-24C/d IDLE
...OK
Sat Sep 19 17:38:17 SAST 2026 [elapsed=275 sec] MET
status...OK
met: c=N o=N Ro1d Cx0 Wo19h Ho1h To93d Do6d wait C IDLE
Sat Sep 19 17:38:17 SAST 2026 [elapsed=275 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Sep 19 17:38:17 SAST 2026 [elapsed=275 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 280.45 -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 9 0.1%
A 0.051s 114 1.2%
A 0.081s 401 4.4%
A 0.112s 749 8.2%
A 0.142s 1206 13.2%
A 0.172s 1802 19.7%
A 0.202s 2490 27.2%
A 0.233s 3286 35.9%
A 0.263s 4194 45.8%
A 0.293s 5145 56.2%
A 0.324s 6019 65.8%
A 0.354s 6803 74.3%
A 0.384s 7459 81.5%
A 0.415s 8032 87.7%
A 0.445s 8491 92.8%
A 0.476s 8811 96.3%
A 0.506s 9031 98.7%
A 0.536s 9155 100.0%
B 0.020s 1 0.0%
B 0.051s 97 1.1%
B 0.081s 385 4.2%
B 0.111s 727 7.9%
B 0.142s 1196 13.1%
B 0.172s 1778 19.4%
B 0.202s 2464 26.9%
B 0.233s 3257 35.6%
B 0.263s 4166 45.5%
B 0.293s 5102 55.7%
B 0.324s 6020 65.8%
B 0.354s 6794 74.2%
B 0.385s 7456 81.5%
B 0.415s 8027 87.7%
B 0.445s 8467 92.5%
B 0.476s 8808 96.2%
B 0.506s 9034 98.7%
B 0.536s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9058 99.0%
A 0.081s 8760 95.7%
A 0.112s 8400 91.8%
A 0.142s 7953 86.9%
A 0.172s 7331 80.1%
A 0.203s 6644 72.6%
A 0.233s 5843 63.8%
A 0.263s 4922 53.8%
A 0.294s 3986 43.5%
A 0.324s 3111 34.0%
A 0.355s 2328 25.4%
A 0.385s 1670 18.2%
A 0.415s 1115 12.2%
A 0.446s 672 7.3%
A 0.476s 328 3.6%
A 0.506s 115 1.3%
A 0.537s 6 0.1%
B 0.020s 9145 99.9%
B 0.051s 9032 98.7%
B 0.081s 8762 95.7%
B 0.111s 8410 91.9%
B 0.142s 7941 86.7%
B 0.172s 7359 80.4%
B 0.202s 6672 72.9%
B 0.233s 5870 64.1%
B 0.263s 4955 54.1%
B 0.293s 4021 43.9%
B 0.324s 3137 34.3%
B 0.354s 2361 25.8%
B 0.384s 1692 18.5%
B 0.415s 1125 12.3%
B 0.445s 684 7.5%
B 0.475s 346 3.8%
B 0.506s 121 1.3%
B 0.536s 12 0.1%
B 0.566s -5 0.0%
A 0 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 0.536 seconds.
Shutter B opened to 99.9 percent in 0.536 seconds.
Shutter A closed to 0.1 percent in 0.537 seconds.
Shutter B closed to 0.0 percent in 0.566 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 228kB time=00:00:07.29 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=9198 IDLE
Sat Sep 19 17:38:55 SAST 2026 [elapsed=313 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:
123M Sep 19 17:39 /atlas/obs/03a/61303/03a61303e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Sep 19 17:39:17 SAST 2026 [elapsed=335 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (87 seconds old)
OTA humidity level...OK (3%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Sep 19 17:39:17 SAST 2026 [elapsed=335 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61302.65229028|info|galildriver|using focus model: foc=9187+(4.30)*16.0+(-0.40)*60.2=9231.7
61302.65229565|info|galildriver|o 2 IN | cass: 3038917 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53999111 9199 um b=8f M [focus]
61302.65230475|info|galildriver|o 2 IN | cass: 3038918 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54002686 9217 um b=8f M [focus]
61302.65231304|info|galildriver|o 2 IN | cass: 3038917 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005401 9230 um b=8f M [focus]
61302.65231643|info|galildriver|o 2 IN | cass: 3038919 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005594 9231 um b=8f M [focus]
61302.65232205|info|galildriver|o 2 IN | cass: 3038918 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005703 9232 um b=0f [cmd]
bestfocus for o...OK
Sat Sep 19 17:39:21 SAST 2026 [elapsed=339 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Sep 19 17:39:47 SAST 2026 [elapsed=365 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
Sat Sep 19 17:39:48 SAST 2026 [elapsed=366 sec] NOTICES: det_dzdx=-892 is outside range +-250 from -558; det_dzdy=2509 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sat Sep 19 17:39:48 SAST 2026 [elapsed=366 sec] Happy observing!
Sat Sep 19 17:39:48 SAST 2026 [elapsed=366 sec] Preflight took 366 seconds to complete.
Sat Sep 19 17:39:48 SAST 2026 [elapsed=366 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