STH Recent Preflight: 61076
Executing preflight for 61076 at Wed Feb 4 18:39:38 SAST 2026.
Log can be found in /atlas/obs/03/61076/preflight.dat.
Setting donefile '/atlas/obs/03/61076/preflight_complete.20260204163938.14431' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260204163938.14431.
Wed Feb 4 18:39:38 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Feb 4 18:39:38 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [d8012a4b-337c-4779-b8a6-8671102ef253;1800]
Wed Feb 4 18:39:38 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Feb 4 18:39:40 SAST 2026 [elapsed=2 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Feb 4 18:39:40 SAST 2026 [elapsed=2 sec] auxcam is disabled.
Wed Feb 4 18:39:40 SAST 2026 [elapsed=2 sec] Skipping auxcam.
error: unknown module: vent
Wed Feb 4 18:39:40 SAST 2026 [elapsed=2 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1770223177
OK
Wed Feb 4 18:39:40 SAST 2026 [elapsed=2 sec] OPSEC
AUTO mode: ...OK
Wed Feb 4 18:39:40 SAST 2026 [elapsed=2 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
Wed Feb 4 18:39:41 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
Wed Feb 4 18:39:42 SAST 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Wed Feb 4 18:39:42 SAST 2026 [elapsed=4 sec] CLOCKS
admin: Wed Feb 4 16:39:42 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 798 1024 377 0.962 0.013 0.205
+metbox2.sth.atl .PPS. 1 u 247 1024 377 0.289 -0.086 0.274
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 751 1024 377 23.409 0.481 1.019
+ntp.as3741.net 146.64.58.41 2 u 270 1024 377 22.856 -0.156 0.376
+ntp2.as3741.net 146.64.8.7 2 u 495 1024 377 7.328 0.175 0.216
-ntp2.inx.net.za 183.3.52.101 2 u 815 1024 377 7.266 -0.146 0.360
-102.222.100.153 196.21.187.2 2 u 243 1024 377 7.855 0.055 0.933
+ntp5.inx.net.za 210.182.58.253 2 u 103 1024 377 7.566 -0.198 0.336
+flipping.cloudh 80.72.67.48 3 u 722 1024 377 9.176 -0.441 1.125
102.216.37.99 ( 210.182.58.253 2 u 51h 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 368 1024 377 22.744 0.149 0.835
Wed Feb 4 18:39:52 SAST 2026 [elapsed=14 sec] DISKS
200GB available in /atlas/obs...OK (5750GB)
200GB available in /atlas/red...OK (8473GB)
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 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 5.3T 8.1T 40% /
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 734G 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
Wed Feb 4 18:39:52 SAST 2026 [elapsed=14 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
Wed Feb 4 18:39:52 SAST 2026 [elapsed=14 sec] Disabling mount tracking.
Wed Feb 4 18:39:53 SAST 2026 [elapsed=15 sec] SERVICES2
Wed Feb 4 18:39:54 SAST 2026 [elapsed=16 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Feb 4 18:39:59 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= 916kB time=00:00:29.31 bitrate= 256.0kbits/s speed=1.46e+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
Wed Feb 4 18:43:15 SAST 2026 [elapsed=217 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: 44.40 -29.49, az/alt=324.65 +86.49 idle(e) IDLE
Wed Feb 4 18:44:15 SAST 2026 [elapsed=277 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Feb 4 18:44:36 SAST 2026 [elapsed=298 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Wed Feb 4 18:44:36 SAST 2026 [elapsed=298 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 (-53.8C)
Checking CCD plane: Z0=+1784.00 DZDX=-900.00 DZDY=+4134.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Feb 4 18:44:36 SAST 2026 [elapsed=298 sec] WEATHER
status weather: C+ 20.8C 52% 12/17kph@264 DP7.3C/-171C/d IDLE
...OK
Wed Feb 4 18:44:37 SAST 2026 [elapsed=299 sec] MET
status...OK
met: c=Y o=N Ro31d Cx13 Wo12d Ho11h To36d Do57 wait C IDLE
Wed Feb 4 18:44:37 SAST 2026 [elapsed=299 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Feb 4 18:44:37 SAST 2026 [elapsed=299 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 73.33 -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 -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 110 1.2%
A 0.081s 392 4.3%
A 0.111s 721 7.9%
A 0.142s 1190 13.0%
A 0.172s 1784 19.5%
A 0.202s 2466 26.9%
A 0.233s 3260 35.6%
A 0.263s 4166 45.5%
A 0.293s 5115 55.9%
A 0.323s 5989 65.4%
A 0.354s 6780 74.1%
A 0.384s 7439 81.3%
A 0.414s 7999 87.4%
A 0.445s 8465 92.5%
A 0.475s 8791 96.0%
A 0.505s 9021 98.5%
A 0.536s 9151 100.0%
B 0.020s 1 0.0%
B 0.050s 100 1.1%
B 0.081s 384 4.2%
B 0.111s 727 7.9%
B 0.141s 1199 13.1%
B 0.171s 1757 19.2%
B 0.202s 2442 26.7%
B 0.232s 3231 35.3%
B 0.262s 4137 45.2%
B 0.293s 5075 55.4%
B 0.323s 5963 65.1%
B 0.353s 6752 73.8%
B 0.383s 7415 81.0%
B 0.414s 7992 87.3%
B 0.444s 8443 92.2%
B 0.474s 8786 96.0%
B 0.504s 9023 98.6%
B 0.535s 9140 99.8%
B 0.565s 9160 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9061 99.0%
A 0.081s 8771 95.8%
A 0.111s 8413 91.9%
A 0.141s 7967 87.0%
A 0.172s 7373 80.5%
A 0.202s 6716 73.4%
A 0.232s 5895 64.4%
A 0.262s 4981 54.4%
A 0.293s 4074 44.5%
A 0.323s 3164 34.6%
A 0.353s 2378 26.0%
A 0.383s 1711 18.7%
A 0.414s 1148 12.5%
A 0.444s 699 7.6%
A 0.474s 354 3.9%
A 0.505s 129 1.4%
A 0.535s 14 0.2%
A 0.565s -6 0.0%
B 0.020s 9146 99.9%
B 0.050s 9033 98.7%
B 0.081s 8770 95.8%
B 0.111s 8423 92.0%
B 0.141s 7956 86.9%
B 0.172s 7379 80.6%
B 0.202s 6693 73.1%
B 0.232s 5897 64.4%
B 0.263s 4984 54.4%
B 0.293s 4050 44.2%
B 0.323s 3166 34.6%
B 0.353s 2384 26.0%
B 0.384s 1713 18.7%
B 0.414s 1141 12.5%
B 0.444s 697 7.6%
B 0.475s 355 3.9%
B 0.505s 127 1.4%
B 0.535s 14 0.2%
B 0.565s -6 0.0%
A 1 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 0.536 seconds.
Shutter B opened to 100.0 percent in 0.565 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= 232kB time=00:00:07.42 bitrate= 256.1kbits/s speed=1.12e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9258 IDLE
Wed Feb 4 18:45:16 SAST 2026 [elapsed=338 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
taking preflight exposures:
acam...OK
acam image:
122M Feb 4 18:45 /atlas/obs/03a/61076/03a61076e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Feb 4 18:45:38 SAST 2026 [elapsed=360 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (81 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Feb 4 18:45:39 SAST 2026 [elapsed=360 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61075.69837145|info|galildriver|using focus model: foc=9187+(4.30)*22.2+(-0.40)*60.2=9258.4
61075.69837635|info|galildriver|o 2 IN | cass: 3047262 15.24 mm b=23 move=NO | arm: 408826 475.94 mm b=03 move=OK | foc: 54011010 9258 um b=2f [cmd]
bestfocus for o...OK
Wed Feb 4 18:45:40 SAST 2026 [elapsed=362 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Feb 4 18:46:10 SAST 2026 [elapsed=392 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
Wed Feb 4 18:46:11 SAST 2026 [elapsed=393 sec] NOTICES: det_dzdx=-900 is outside range +-250 from -558; det_dzdy=4134 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Wed Feb 4 18:46:11 SAST 2026 [elapsed=393 sec] Happy observing!
Wed Feb 4 18:46:11 SAST 2026 [elapsed=393 sec] Preflight took 393 seconds to complete.
Wed Feb 4 18:46:11 SAST 2026 [elapsed=393 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 0.050s 110 1.2% A 0.081s 372 4.1% A 0.111s 718 7.8% A 0.141s 1181 12.9% A 0.172s 1759 19.2% A 0.202s 2441 26.7% A 0.232s 3237 35.4% A 0.262s 4144 45.3% A 0.292s 5077 55.5% A 0.323s 5964 65.2% A 0.353s 6756 73.8% A 0.383s 7411 81.0% A 0.413s 7992 87.3% A 0.443s 8446 92.3% A 0.474s 8779 95.9% A 0.504s 9023 98.6% A 0.534s 9139 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 120 1.3% B 0.080s 379 4.1% B 0.111s 728 8.0% B 0.141s 1203 13.1% B 0.171s 1773 19.4% B 0.201s 2467 26.9% B 0.232s 3270 35.7% B 0.262s 4166 45.5% B 0.292s 5104 55.8% B 0.323s 5987 65.4% B 0.353s 6773 74.0% B 0.383s 7439 81.3% B 0.413s 8001 87.4% B 0.443s 8456 92.4% B 0.474s 8795 96.1% B 0.504s 9023 98.6% B 0.534s 9138 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9048 98.8% A 0.081s 8781 95.9% A 0.111s 8429 92.1% A 0.141s 7963 87.0% A 0.171s 7384 80.7% A 0.201s 6692 73.1% A 0.232s 5901 64.5% A 0.262s 4981 54.4% A 0.292s 4043 44.2% A 0.322s 3170 34.6% A 0.353s 2382 26.0% A 0.383s 1715 18.7% A 0.413s 1144 12.5% A 0.443s 693 7.6% A 0.473s 369 4.0% A 0.504s 131 1.4% A 0.534s 16 0.2% A 0.564s 2 0.0% B 0.020s 9143 99.9% B 0.050s 9016 98.5% B 0.081s 8770 95.8% B 0.111s 8419 92.0% B 0.141s 7951 86.9% B 0.171s 7378 80.6% B 0.201s 6687 73.1% B 0.232s 5919 64.7% B 0.262s 5011 54.7% B 0.292s 4082 44.6% B 0.322s 3191 34.9% B 0.352s 2416 26.4% B 0.383s 1722 18.8% B 0.413s 1162 12.7% B 0.443s 712 7.8% B 0.473s 364 4.0% B 0.504s 138 1.5% B 0.534s 16 0.2% B 0.564s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R