STH Recent Preflight: 61047
Executing preflight for 61047 at Tue Jan 6 18:50:47 SAST 2026.
Log can be found in /atlas/obs/03/61047/preflight.dat.
Setting donefile '/atlas/obs/03/61047/preflight_complete.20260106165047.14431' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260106165047.14431.
Tue Jan 6 18:50:48 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Jan 6 18:50:48 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [05e30b07-fdc8-496a-874d-7829a6f62782;1800]
Tue Jan 6 18:50:48 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Jan 6 18:50:49 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Jan 6 18:50:49 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Jan 6 18:50:49 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Jan 6 18:50:49 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1767718240
OK
Tue Jan 6 18:50:49 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Jan 6 18:50:49 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 Jan 6 18:50:50 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
Tue Jan 6 18:50:51 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Jan 6 18:50:51 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Jan 6 16:50:51 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 171 1024 377 1.040 0.072 0.174
+metbox2.sth.atl .PPS. 1 u 923 1024 377 0.306 0.028 0.028
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-146.64.24.58 208.219.48.14 2 u 409 1024 377 23.352 0.409 0.323
-ntp.as3741.net 146.64.8.7 2 u 955 1024 377 22.918 -0.021 0.133
-ntp2.as3741.net 146.64.8.7 2 u 897 1024 377 7.346 -0.028 0.232
-ntp2.inx.net.za 183.3.52.101 2 u 1003 1024 377 7.119 0.086 0.048
-102.222.100.153 155.232.19.6 2 u 905 1024 377 7.944 -0.718 0.400
-ntp5.inx.net.za 183.3.52.101 2 u 43 1024 377 7.192 0.081 0.049
+flipping.cloudh 80.72.67.48 3 u 369 1024 377 8.173 0.092 0.137
#102.216.37.99 ( 183.3.52.101 2 u 859 1024 377 73.664 -0.512 0.519
-jnb.clearnet.pw 183.3.52.101 2 u 472 1024 377 22.810 -0.319 0.230
Tue Jan 6 18:51:04 SAST 2026 [elapsed=16 sec] DISKS
200GB available in /atlas/obs...OK (6096GB)
200GB available in /atlas/red...OK (8888GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.4T 5.9T 44% /
admin:/dev/loop0 105M 105M 0 100% /snap/core/17247
admin:/dev/loop1 105M 105M 0 100% /snap/core/17272
archon:/dev/sda2 117G 21G 91G 19% /
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
archon:/dev/loop0 105M 105M 0 100% /snap/core/17247
archon:/dev/loop2 105M 105M 0 100% /snap/core/17272
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 4.9T 8.5T 37% /
proc1:/dev/loop1 105M 105M 0 100% /snap/core/17247
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/md0p1 15T 1.7T 12T 13% /
proc2:/dev/loop0 105M 105M 0 100% /snap/core/17247
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/md0p1 15T 733G 13T 6% /
proc3:/dev/loop1 105M 105M 0 100% /snap/core/17247
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop1 105M 105M 0 100% /snap/core/17247
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
Tue Jan 6 18:51:04 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
Tue Jan 6 18:51:04 SAST 2026 [elapsed=16 sec] Disabling mount tracking.
Tue Jan 6 18:51:05 SAST 2026 [elapsed=17 sec] SERVICES2
Tue Jan 6 18:51:05 SAST 2026 [elapsed=17 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Jan 6 18:51:09 SAST 2026 [elapsed=21 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= 926kB time=00:00:29.63 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/CLOSED (0%) IDLE
Tue Jan 6 18:53:44 SAST 2026 [elapsed=176 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: 18.44 -29.49, az/alt=324.69 +86.49 idle(e) IDLE
Tue Jan 6 18:54:43 SAST 2026 [elapsed=235 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Jan 6 18:55:04 SAST 2026 [elapsed=256 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.0 IDLE
Tue Jan 6 18:55:04 SAST 2026 [elapsed=256 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 (-53.9C)
Checking CCD plane: Z0=+1779.00 DZDX=-897.00 DZDY=+3964.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Jan 6 18:55:04 SAST 2026 [elapsed=256 sec] WEATHER
status weather: C W 20.4C 53% 35/42kph@294 DP8.5C/-56C/d IDLE
...OK
Tue Jan 6 18:55:05 SAST 2026 [elapsed=257 sec] MET
status...OK
met: c=N o=Y Ro2d Co1d Wo6d Ho1d To7d Do1d IDLE
Tue Jan 6 18:55:05 SAST 2026 [elapsed=257 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Jan 6 18:55:07 SAST 2026 [elapsed=259 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 47.37 -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 -1 -0.0mm 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 103 1.1%
A 0.081s 394 4.3%
A 0.112s 733 8.0%
A 0.142s 1192 13.0%
A 0.173s 1803 19.7%
A 0.203s 2489 27.2%
A 0.233s 3287 35.9%
A 0.264s 4194 45.8%
A 0.294s 5145 56.2%
A 0.325s 6016 65.7%
A 0.355s 6803 74.3%
A 0.386s 7460 81.5%
A 0.416s 8032 87.7%
A 0.447s 8489 92.7%
A 0.477s 8810 96.2%
A 0.507s 9031 98.7%
A 0.538s 9153 100.0%
B 0.020s 2 0.0%
B 0.051s 105 1.1%
B 0.081s 397 4.3%
B 0.111s 740 8.1%
B 0.142s 1215 13.3%
B 0.172s 1797 19.6%
B 0.202s 2492 27.2%
B 0.233s 3286 35.9%
B 0.263s 4197 45.8%
B 0.294s 5132 56.1%
B 0.324s 6048 66.1%
B 0.354s 6821 74.5%
B 0.385s 7473 81.6%
B 0.415s 8044 87.9%
B 0.446s 8477 92.6%
B 0.476s 8814 96.3%
B 0.506s 9039 98.7%
B 0.537s 9147 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9064 99.0%
A 0.081s 8769 95.8%
A 0.112s 8400 91.8%
A 0.142s 7952 86.9%
A 0.173s 7352 80.3%
A 0.203s 6669 72.9%
A 0.234s 5869 64.1%
A 0.264s 4954 54.1%
A 0.294s 3984 43.5%
A 0.325s 3109 34.0%
A 0.355s 2331 25.5%
A 0.386s 1670 18.2%
A 0.416s 1115 12.2%
A 0.446s 662 7.2%
A 0.476s 336 3.7%
A 0.507s 120 1.3%
A 0.537s 8 0.1%
B 0.020s 9146 99.9%
B 0.050s 9033 98.7%
B 0.081s 8770 95.8%
B 0.111s 8424 92.0%
B 0.141s 7956 86.9%
B 0.172s 7379 80.6%
B 0.202s 6694 73.1%
B 0.233s 5894 64.4%
B 0.263s 4985 54.5%
B 0.293s 4050 44.2%
B 0.324s 3166 34.6%
B 0.354s 2384 26.0%
B 0.384s 1693 18.5%
B 0.415s 1127 12.3%
B 0.445s 646 7.1%
B 0.475s 347 3.8%
B 0.506s 123 1.3%
B 0.536s 12 0.1%
B 0.566s -3 0.0%
A 0 0.0mm 15 N F R | B -3 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.538 seconds.
Shutter B opened to 99.9 percent in 0.537 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= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.01e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9257 IDLE
Tue Jan 6 18:55:46 SAST 2026 [elapsed=298 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.0 IDLE
taking preflight exposures:
acam...OK
acam image:
126M Jan 6 18:56 /atlas/obs/03a/61047/03a61047e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Jan 6 18:56:09 SAST 2026 [elapsed=321 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (82 seconds old)
OTA humidity level...OK (4%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Jan 6 18:56:09 SAST 2026 [elapsed=321 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61046.70566428|info|galildriver|using focus model: foc=9187+(4.30)*22.1+(-0.40)*60.2=9257.9
61046.70566918|info|galildriver|o 2 IN | cass: 3048000 15.24 mm b=23 move=NO | arm: 408826 475.94 mm b=03 move=OK | foc: 54010811 9257 um b=2f [cmd]
bestfocus for o...OK
Tue Jan 6 18:56:09 SAST 2026 [elapsed=321 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Jan 6 18:56:40 SAST 2026 [elapsed=352 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 Jan 6 18:56:41 SAST 2026 [elapsed=353 sec] NOTICES: det_dzdx=-897 is outside range +-250 from -558; det_dzdy=3964 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 Jan 6 18:56:41 SAST 2026 [elapsed=353 sec] Happy observing!
Tue Jan 6 18:56:41 SAST 2026 [elapsed=353 sec] Preflight took 353 seconds to complete.
Tue Jan 6 18:56:41 SAST 2026 [elapsed=353 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 4 0.0% A 0.051s 124 1.4% A 0.081s 393 4.3% A 0.111s 744 8.1% A 0.141s 1215 13.3% A 0.172s 1801 19.7% A 0.202s 2488 27.2% A 0.232s 3293 36.0% A 0.263s 4206 45.9% A 0.293s 5136 56.1% A 0.323s 6019 65.8% A 0.353s 6802 74.3% A 0.383s 7450 81.4% A 0.414s 8026 87.7% A 0.444s 8471 92.5% A 0.474s 8797 96.1% A 0.504s 9034 98.7% A 0.534s 9141 99.9% A 0.565s 9153 100.0% B 0.020s 3 0.0% B 0.050s 122 1.3% B 0.081s 391 4.3% B 0.111s 743 8.1% B 0.141s 1221 13.3% B 0.171s 1796 19.6% B 0.201s 2468 27.0% B 0.232s 3269 35.7% B 0.262s 4167 45.5% B 0.292s 5106 55.8% B 0.322s 5989 65.4% B 0.353s 6771 74.0% B 0.383s 7440 81.3% B 0.413s 8002 87.4% B 0.443s 8457 92.4% B 0.474s 8796 96.1% B 0.504s 9023 98.6% B 0.534s 9139 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9154 100.0% A 0.050s 9042 98.8% A 0.081s 8773 95.8% A 0.111s 8415 91.9% A 0.141s 7965 87.0% A 0.171s 7385 80.7% A 0.202s 6693 73.1% A 0.232s 5902 64.5% A 0.262s 4981 54.4% A 0.292s 4043 44.2% A 0.323s 3172 34.7% A 0.353s 2380 26.0% A 0.383s 1715 18.7% A 0.413s 1144 12.5% A 0.444s 691 7.5% A 0.474s 359 3.9% A 0.504s 124 1.4% A 0.534s 14 0.2% A 0.565s 3 0.0% B 0.020s 9144 99.9% B 0.050s 9008 98.4% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7950 86.8% B 0.171s 7377 80.6% B 0.202s 6688 73.1% B 0.232s 5892 64.4% B 0.262s 4981 54.4% B 0.292s 4051 44.3% B 0.323s 3161 34.5% B 0.353s 2394 26.2% B 0.383s 1704 18.6% B 0.414s 1146 12.5% B 0.444s 699 7.6% B 0.474s 355 3.9% B 0.504s 132 1.4% B 0.535s 13 0.1% B 0.565s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R