STH Recent Preflight: 61110
Executing preflight for 61110 at Tue Mar 10 18:03:18 SAST 2026.
Log can be found in /atlas/obs/03/61110/preflight.dat.
Setting donefile '/atlas/obs/03/61110/preflight_complete.20260310160318.25684' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260310160318.25684.
Tue Mar 10 18:03:18 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Mar 10 18:03:18 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [3e5b2ddf-9b78-4fd9-b8f6-7b06619413ab;1800]
Tue Mar 10 18:03:18 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Mar 10 18:03:19 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Mar 10 18:03:19 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Mar 10 18:03:19 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Mar 10 18:03:19 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1773158594
OK
Tue Mar 10 18:03:19 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Mar 10 18:03:19 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 Mar 10 18:03:21 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
Tue Mar 10 18:03:21 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Mar 10 18:03:21 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Mar 10 16:03:21 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 343 1024 37 1.053 -0.121 0.206
+metbox2.sth.atl .PPS. 1 u 503 1024 377 0.258 -0.082 0.102
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 155.232.19.8 2 u 563 1024 377 24.267 0.120 0.951
+ntp.as3741.net 146.64.58.41 2 u 132 1024 377 22.870 -0.208 0.243
+ntp2.as3741.net 155.232.19.6 2 u 161 1024 377 7.218 -0.029 0.099
-ntp2.inx.net.za 196.21.187.2 2 u 572 1024 377 7.220 -0.058 0.425
-102.222.100.153 155.232.19.6 2 u 665 1024 377 7.903 -0.140 0.366
+ntp5.inx.net.za 210.182.58.253 2 u 113 1024 377 7.936 -0.045 0.139
-flipping.cloudh 80.72.67.48 3 u 389 1024 377 8.086 0.190 1.096
102.216.37.99 ( 210.182.58.253 2 u 36d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 943 1024 377 22.860 -0.582 0.892
Tue Mar 10 18:03:24 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6034GB)
200GB available in /atlas/red...OK (8902GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.5T 5.8T 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 4.9T 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 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
Tue Mar 10 18:03:24 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
Tue Mar 10 18:03:24 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Tue Mar 10 18:03:24 SAST 2026 [elapsed=6 sec] SERVICES2
Tue Mar 10 18:03:24 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Mar 10 18:03:28 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= 926kB time=00:00:29.63 bitrate= 256.0kbits/s speed=1.53e+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 Mar 10 18:06:44 SAST 2026 [elapsed=206 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: 68.76 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Tue Mar 10 18:07:43 SAST 2026 [elapsed=265 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Mar 10 18:08:04 SAST 2026 [elapsed=286 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=53.0 IDLE
Tue Mar 10 18:08:04 SAST 2026 [elapsed=286 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.8C)
Checking CCD plane: Z0=+1792.00 DZDX=-903.00 DZDY=+4290.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Mar 10 18:08:04 SAST 2026 [elapsed=286 sec] WEATHER
status weather: C 27.1C 25% 10/10kph@54 DP22.9C/58C/d IDLE
...OK
Tue Mar 10 18:08:04 SAST 2026 [elapsed=286 sec] MET
status...OK
met: c=N o=Y Ro9d Co2d Wo3d Ho2d To70d Do11d IDLE
Tue Mar 10 18:08:04 SAST 2026 [elapsed=286 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Mar 10 18:08:06 SAST 2026 [elapsed=288 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 97.68 -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 -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 0.050s 115 1.3%
A 0.081s 403 4.4%
A 0.111s 747 8.2%
A 0.141s 1187 13.0%
A 0.171s 1781 19.5%
A 0.202s 2469 27.0%
A 0.232s 3257 35.6%
A 0.262s 4161 45.5%
A 0.292s 5117 55.9%
A 0.323s 5995 65.5%
A 0.353s 6779 74.1%
A 0.383s 7438 81.3%
A 0.413s 8003 87.4%
A 0.444s 8463 92.5%
A 0.474s 8784 96.0%
A 0.504s 9023 98.6%
A 0.534s 9150 100.0%
B 0.020s 0 0.0%
B 0.050s 86 0.9%
B 0.081s 375 4.1%
B 0.111s 718 7.8%
B 0.141s 1183 12.9%
B 0.172s 1759 19.2%
B 0.202s 2442 26.7%
B 0.232s 3231 35.3%
B 0.262s 4139 45.2%
B 0.293s 5073 55.4%
B 0.323s 5963 65.1%
B 0.353s 6753 73.8%
B 0.383s 7414 81.0%
B 0.414s 7994 87.3%
B 0.444s 8442 92.2%
B 0.474s 8786 96.0%
B 0.504s 9022 98.6%
B 0.535s 9139 99.8%
B 0.565s 9158 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9067 99.0%
A 0.081s 8782 95.9%
A 0.111s 8426 92.0%
A 0.141s 7985 87.2%
A 0.171s 7391 80.7%
A 0.202s 6716 73.4%
A 0.232s 5925 64.7%
A 0.262s 4981 54.4%
A 0.293s 4044 44.2%
A 0.323s 3167 34.6%
A 0.353s 2400 26.2%
A 0.383s 1730 18.9%
A 0.414s 1166 12.7%
A 0.444s 710 7.8%
A 0.474s 366 4.0%
A 0.505s 136 1.5%
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 8768 95.8%
B 0.111s 8425 92.0%
B 0.141s 7954 86.9%
B 0.171s 7378 80.6%
B 0.202s 6697 73.2%
B 0.232s 5896 64.4%
B 0.262s 4982 54.4%
B 0.292s 4058 44.3%
B 0.323s 3158 34.5%
B 0.353s 2385 26.1%
B 0.383s 1734 18.9%
B 0.413s 1156 12.6%
B 0.444s 713 7.8%
B 0.474s 370 4.0%
B 0.504s 135 1.5%
B 0.534s 14 0.2%
B 0.565s -5 0.0%
A 1 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 0.534 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= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.14e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9260 IDLE
Tue Mar 10 18:08:51 SAST 2026 [elapsed=333 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=53.0 IDLE
taking preflight exposures:
acam...OK
acam image:
124M Mar 10 18:09 /atlas/obs/03a/61110/03a61110e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Mar 10 18:09:13 SAST 2026 [elapsed=355 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (56 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Tue Mar 10 18:09:13 SAST 2026 [elapsed=355 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61109.67307971|info|galildriver|using focus model: foc=9187+(4.30)*23.6+(-0.40)*60.2=9264.4
61109.67308496|info|galildriver|o 2 IN | cass: 3045271 15.23 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54011528 9261 um b=8f M [focus]
61109.67309556|info|galildriver|o 2 IN | cass: 3045271 15.23 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54011594 9261 um b=2f [cmd]
bestfocus for o...OK
Tue Mar 10 18:09:16 SAST 2026 [elapsed=358 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Mar 10 18:09:46 SAST 2026 [elapsed=388 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 Mar 10 18:09:47 SAST 2026 [elapsed=389 sec] NOTICES: det_dzdx=-903 is outside range +-250 from -558; det_dzdy=4290 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 Mar 10 18:09:47 SAST 2026 [elapsed=389 sec] Happy observing!
Tue Mar 10 18:09:47 SAST 2026 [elapsed=389 sec] Preflight took 389 seconds to complete.
Tue Mar 10 18:09:47 SAST 2026 [elapsed=389 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 116 1.3% A 0.081s 373 4.1% A 0.111s 718 7.8% A 0.141s 1182 12.9% A 0.171s 1759 19.2% A 0.202s 2441 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.292s 5077 55.5% A 0.322s 5963 65.1% A 0.353s 6756 73.8% A 0.383s 7412 81.0% A 0.413s 7991 87.3% A 0.444s 8446 92.3% A 0.474s 8779 95.9% A 0.504s 9023 98.6% A 0.534s 9137 99.8% A 0.565s 9152 100.0% B 0.020s -1 -0.0% B 0.050s 105 1.1% B 0.081s 378 4.1% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.171s 1753 19.2% B 0.202s 2441 26.7% B 0.232s 3240 35.4% B 0.262s 4135 45.2% B 0.292s 5074 55.4% B 0.322s 5959 65.1% B 0.352s 6749 73.7% B 0.383s 7418 81.0% B 0.413s 7986 87.2% B 0.443s 8431 92.1% B 0.473s 8778 95.9% B 0.503s 9012 98.4% B 0.534s 9133 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9155 100.0% A 0.050s 9050 98.9% A 0.081s 8783 95.9% A 0.111s 8430 92.1% A 0.141s 7965 87.0% A 0.171s 7385 80.7% A 0.202s 6694 73.1% A 0.232s 5903 64.5% A 0.262s 4982 54.4% A 0.293s 4045 44.2% A 0.323s 3172 34.7% A 0.353s 2381 26.0% A 0.383s 1714 18.7% A 0.414s 1146 12.5% A 0.444s 692 7.6% A 0.474s 360 3.9% A 0.504s 125 1.4% A 0.535s 15 0.2% A 0.565s 4 0.0% B 0.020s 9144 99.9% B 0.050s 9009 98.4% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.171s 7377 80.6% B 0.202s 6687 73.1% B 0.232s 5892 64.4% B 0.262s 4983 54.4% B 0.292s 4052 44.3% B 0.322s 3161 34.5% B 0.353s 2393 26.1% B 0.383s 1704 18.6% B 0.413s 1147 12.5% B 0.443s 700 7.6% B 0.474s 355 3.9% B 0.504s 133 1.5% B 0.534s 13 0.1% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R