STH Recent Preflight: 61107
Executing preflight for 61107 at Sat Mar 7 18:07:06 SAST 2026.
Log can be found in /atlas/obs/03/61107/preflight.dat.
Setting donefile '/atlas/obs/03/61107/preflight_complete.20260307160706.25684' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260307160706.25684.
Sat Mar 7 18:07:07 SAST 2026 [elapsed=1 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Mar 7 18:07:07 SAST 2026 [elapsed=1 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [0e57a047-eb44-4fdc-92f7-77b9f5748fb6;1800]
Sat Mar 7 18:07:07 SAST 2026 [elapsed=1 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat Mar 7 18:07:07 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat Mar 7 18:07:07 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat Mar 7 18:07:07 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Mar 7 18:07:07 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1772899624
OK
Sat Mar 7 18:07:07 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Mar 7 18:07:07 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
Sat Mar 7 18:07:09 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
Sat Mar 7 18:07:09 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Mar 7 18:07:10 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sat Mar 7 16:07:10 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 122 1024 377 1.033 0.105 0.037
*metbox2.sth.atl .PPS. 1 u 952 1024 377 0.298 0.060 0.023
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 942 1024 377 24.279 -0.384 0.969
+ntp.as3741.net 146.64.58.41 2 u 709 1024 377 22.770 0.059 0.041
ntp2.as3741.net 155.232.19.6 2 u 73h 1024 0 7.314 0.008 0.000
-ntp2.inx.net.za 183.3.52.101 2 u 603 1024 377 7.360 0.127 0.088
-102.222.100.153 155.232.19.7 2 u 357 1024 377 7.866 0.704 0.220
-ntp5.inx.net.za 183.3.52.101 2 u 397 1024 377 7.875 0.139 0.103
-flipping.cloudh 80.72.67.48 3 u 684 1024 377 8.102 -0.101 0.305
102.216.37.99 ( 210.182.58.253 2 u 33d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 102.176.229.251 2 u 440 1024 377 22.725 0.223 0.323
Sat Mar 7 18:07:12 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6090GB)
200GB available in /atlas/red...OK (9069GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.5T 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 38% /
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 4.8T 8.7T 36% /
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
Sat Mar 7 18:07:12 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 Mar 7 18:07:12 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Sat Mar 7 18:07:12 SAST 2026 [elapsed=6 sec] SERVICES2
Sat Mar 7 18:07:12 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 2.9/3.0C ? chiller=ON dryer=? IDLE
Sat Mar 7 18:07:17 SAST 2026 [elapsed=11 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=1.52e+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 Mar 7 18:10:12 SAST 2026 [elapsed=186 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: 66.66 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Sat Mar 7 18:11:10 SAST 2026 [elapsed=244 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Mar 7 18:11:31 SAST 2026 [elapsed=265 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Sat Mar 7 18:11:31 SAST 2026 [elapsed=265 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.7C)
Checking CCD plane: Z0=+1736.00 DZDX=-894.00 DZDY=+2969.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Mar 7 18:11:31 SAST 2026 [elapsed=265 sec] WEATHER
status weather: clear 14.5C 38% 22/25kph@144 DP12.8C/-37C/d IDLE
...OK
Sat Mar 7 18:11:31 SAST 2026 [elapsed=265 sec] MET
status...OK
met: c=N o=Y Ro6d Co7h Wo16h Ho7h To67d Do8d IDLE
Sat Mar 7 18:11:31 SAST 2026 [elapsed=265 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Mar 7 18:11:31 SAST 2026 [elapsed=265 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 95.59 -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 117 1.3%
A 0.081s 404 4.4%
A 0.111s 745 8.1%
A 0.142s 1209 13.2%
A 0.172s 1804 19.7%
A 0.202s 2489 27.2%
A 0.233s 3289 35.9%
A 0.263s 4193 45.8%
A 0.293s 5145 56.2%
A 0.324s 6019 65.8%
A 0.354s 6802 74.3%
A 0.384s 7479 81.7%
A 0.415s 8032 87.7%
A 0.445s 8489 92.7%
A 0.475s 8811 96.3%
A 0.506s 9032 98.7%
A 0.536s 9154 100.0%
B 0.020s 1 0.0%
B 0.051s 98 1.1%
B 0.081s 384 4.2%
B 0.111s 726 7.9%
B 0.142s 1196 13.1%
B 0.172s 1777 19.4%
B 0.202s 2465 26.9%
B 0.233s 3257 35.6%
B 0.263s 4168 45.5%
B 0.293s 5102 55.7%
B 0.324s 5989 65.4%
B 0.354s 6775 74.0%
B 0.384s 7435 81.2%
B 0.414s 8011 87.5%
B 0.445s 8456 92.4%
B 0.475s 8798 96.1%
B 0.505s 9028 98.6%
B 0.536s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.024s 9145 99.9%
A 0.064s 8938 97.6%
A 0.108s 8544 93.3%
A 0.144s 7844 85.7%
A 0.174s 7225 78.9%
A 0.204s 6527 71.3%
A 0.235s 5698 62.2%
A 0.265s 4767 52.1%
A 0.295s 3841 42.0%
A 0.325s 2976 32.5%
A 0.356s 2217 24.2%
A 0.386s 1574 17.2%
A 0.416s 1034 11.3%
A 0.446s 612 6.7%
A 0.477s 295 3.2%
A 0.507s 93 1.0%
A 0.538s 2 0.0%
B 0.020s 9147 99.9%
B 0.050s 9028 98.6%
B 0.081s 8761 95.7%
B 0.111s 8411 91.9%
B 0.141s 7941 86.7%
B 0.171s 7359 80.4%
B 0.202s 6671 72.9%
B 0.232s 5897 64.4%
B 0.262s 4986 54.5%
B 0.292s 4050 44.2%
B 0.322s 3163 34.6%
B 0.353s 2384 26.0%
B 0.383s 1713 18.7%
B 0.413s 1141 12.5%
B 0.443s 696 7.6%
B 0.474s 355 3.9%
B 0.504s 126 1.4%
B 0.534s 12 0.1%
B 0.564s -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 0.0 percent in 0.538 seconds.
Shutter B closed to 0.0 percent in 0.564 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.11e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9234 IDLE
Sat Mar 7 18:12:10 SAST 2026 [elapsed=304 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
126M Mar 7 18:12 /atlas/obs/03a/61107/03a61107e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Mar 7 18:12:32 SAST 2026 [elapsed=326 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (75 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Mar 7 18:12:32 SAST 2026 [elapsed=326 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61106.67538132|info|galildriver|using focus model: foc=9187+(4.30)*17.6+(-0.40)*60.2=9238.6
61106.67538656|info|galildriver|o 2 IN | cass: 3049975 15.25 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54006263 9234 um b=8f M [focus]
61106.67539716|info|galildriver|o 2 IN | cass: 3049974 15.25 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54006343 9235 um b=2f [cmd]
bestfocus for o...OK
Sat Mar 7 18:12:35 SAST 2026 [elapsed=329 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Mar 7 18:13:05 SAST 2026 [elapsed=359 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 Mar 7 18:13:06 SAST 2026 [elapsed=360 sec] NOTICES: det_dzdx=-894 is outside range +-250 from -558; det_dzdy=2969 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 Mar 7 18:13:06 SAST 2026 [elapsed=360 sec] Happy observing!
Sat Mar 7 18:13:06 SAST 2026 [elapsed=360 sec] Preflight took 359 seconds to complete.
Sat Mar 7 18:13:06 SAST 2026 [elapsed=360 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 0.050s 116 1.3% A 0.081s 372 4.1% A 0.111s 731 8.0% A 0.141s 1198 13.1% A 0.172s 1779 19.4% A 0.202s 2442 26.7% A 0.232s 3238 35.4% A 0.262s 4174 45.6% A 0.293s 5107 55.8% A 0.323s 5964 65.2% A 0.353s 6757 73.8% A 0.383s 7411 81.0% A 0.413s 7991 87.3% A 0.444s 8447 92.3% A 0.474s 8779 95.9% A 0.504s 9023 98.6% A 0.534s 9138 99.8% A 0.564s 9152 100.0% B 0.020s -1 -0.0% B 0.050s 105 1.1% B 0.081s 369 4.0% B 0.111s 714 7.8% B 0.141s 1186 13.0% B 0.172s 1752 19.1% B 0.202s 2442 26.7% B 0.232s 3239 35.4% B 0.262s 4135 45.2% B 0.292s 5074 55.4% B 0.323s 5960 65.1% B 0.353s 6747 73.7% B 0.383s 7419 81.0% B 0.413s 7968 87.0% B 0.443s 8431 92.1% B 0.473s 8777 95.9% B 0.504s 9013 98.5% B 0.534s 9135 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9047 98.8% A 0.081s 8779 95.9% A 0.111s 8427 92.1% A 0.141s 7961 87.0% A 0.171s 7382 80.6% A 0.202s 6690 73.1% A 0.232s 5899 64.4% A 0.262s 4979 54.4% A 0.293s 4040 44.1% A 0.323s 3168 34.6% A 0.353s 2382 26.0% A 0.383s 1714 18.7% A 0.413s 1144 12.5% A 0.444s 692 7.6% A 0.474s 359 3.9% A 0.504s 124 1.4% A 0.535s 15 0.2% A 0.565s 2 0.0% B 0.020s 9144 99.9% B 0.050s 9014 98.5% B 0.081s 8770 95.8% B 0.111s 8419 92.0% B 0.141s 7950 86.8% B 0.171s 7377 80.6% B 0.202s 6689 73.1% B 0.232s 5893 64.4% B 0.262s 4980 54.4% B 0.292s 4052 44.3% B 0.322s 3188 34.8% B 0.352s 2416 26.4% B 0.383s 1726 18.9% B 0.413s 1161 12.7% B 0.443s 712 7.8% B 0.473s 364 4.0% B 0.504s 137 1.5% B 0.534s 15 0.2% B 0.564s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R