STH Recent Preflight: 61284
Executing preflight for 61284 at Mon Aug 31 17:21:50 SAST 2026.
Log can be found in /atlas/obs/03/61284/preflight.dat.
Setting donefile '/atlas/obs/03/61284/preflight_complete.20260831152150.30267' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260831152150.30267.
Mon Aug 31 17:21:50 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Aug 31 17:21:50 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [b62ba1e9-c755-41be-ae08-fd2cb5f90457;1800]
Mon Aug 31 17:21:50 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Aug 31 17:21:51 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Aug 31 17:21:51 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Mon Aug 31 17:21:51 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Mon Aug 31 17:21:51 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1788189706
OK
Mon Aug 31 17:21:51 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Aug 31 17:21:51 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
Mon Aug 31 17:21:53 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
Mon Aug 31 17:21:53 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Aug 31 17:21:53 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Mon Aug 31 15:21:53 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 834 1024 377 1.034 -0.223 0.277
*metbox2.sth.atl .PPS. 1 u 55 1024 377 0.285 -0.208 0.137
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 155.232.19.7 2 u 851 1024 377 23.321 -0.267 0.476
+ntp.as3741.net 146.64.58.41 2 u 60 1024 377 22.691 -0.222 0.395
+ntp2.as3741.net 146.64.58.41 2 u 146 1024 377 7.326 -0.268 0.139
+ntp2.inx.net.za 210.182.58.253 2 u 267 1024 377 7.276 -0.173 0.199
+ntp5.inx.net.za 196.21.187.2 2 u 99 1024 377 7.558 -0.174 0.134
#102.222.156.151 196.21.187.2 2 u 1009 1024 377 24.512 0.116 1.354
+ntp2.nog.net.za 80.72.67.48 3 u 414 1024 377 7.666 -0.180 0.307
-139.84.231.68 ( 196.21.187.2 2 u 172 1024 377 22.835 -0.070 0.750
-ntp8.inx.net.za 183.3.52.101 2 u 983 1024 377 16.948 -0.597 0.291
Mon Aug 31 17:21:56 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (4715GB)
200GB available in /atlas/red...OK (7801GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 5.8T 4.5T 56% /
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 6.0T 7.5T 45% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.7T 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 738G 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
Mon Aug 31 17:21:56 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
Mon Aug 31 17:21:56 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Mon Aug 31 17:21:57 SAST 2026 [elapsed=7 sec] SERVICES2
Mon Aug 31 17:21:57 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Aug 31 17:22:01 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= 922kB time=00:00:29.50 bitrate= 256.0kbits/s speed=1.5e+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
Mon Aug 31 17:25:15 SAST 2026 [elapsed=205 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: 229.83 -29.49, az/alt=324.73 +86.49 idle(e) IDLE
Mon Aug 31 17:26:06 SAST 2026 [elapsed=256 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Aug 31 17:26:25 SAST 2026 [elapsed=275 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Mon Aug 31 17:26:25 SAST 2026 [elapsed=275 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 (-54.5C)
Checking CCD plane: Z0=+1736.00 DZDX=-894.00 DZDY=+2981.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Aug 31 17:26:25 SAST 2026 [elapsed=275 sec] WEATHER
status weather: clear 16.3C 32% 9/12kph@264 DP16.4C/3C/d IDLE
...OK
Mon Aug 31 17:26:26 SAST 2026 [elapsed=276 sec] MET
status...OK
met: c=N o=Y Ro2d Co11h Wo2d Ho11h To74d Do12h IDLE
Mon Aug 31 17:26:26 SAST 2026 [elapsed=276 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Aug 31 17:26:28 SAST 2026 [elapsed=278 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 258.75 -14.64, 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 2 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 8 0.1%
A 0.051s 100 1.1%
A 0.081s 382 4.2%
A 0.111s 723 7.9%
A 0.141s 1172 12.8%
A 0.172s 1763 19.3%
A 0.202s 2442 26.7%
A 0.232s 3233 35.3%
A 0.262s 4134 45.2%
A 0.293s 5084 55.5%
A 0.323s 5963 65.1%
A 0.353s 6757 73.8%
A 0.383s 7420 81.1%
A 0.413s 7983 87.2%
A 0.444s 8453 92.3%
A 0.474s 8782 95.9%
A 0.504s 9014 98.5%
A 0.534s 9150 100.0%
B 0.020s 1 0.0%
B 0.050s 98 1.1%
B 0.081s 384 4.2%
B 0.111s 727 7.9%
B 0.141s 1197 13.1%
B 0.172s 1777 19.4%
B 0.202s 2466 26.9%
B 0.232s 3258 35.6%
B 0.262s 4169 45.5%
B 0.293s 5102 55.7%
B 0.323s 5991 65.4%
B 0.353s 6774 74.0%
B 0.383s 7436 81.2%
B 0.414s 8009 87.5%
B 0.444s 8455 92.4%
B 0.474s 8798 96.1%
B 0.504s 9028 98.6%
B 0.535s 9143 99.9%
B 0.565s 9159 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8771 95.8%
A 0.115s 8377 91.5%
A 0.150s 7863 85.9%
A 0.192s 7140 78.0%
A 0.225s 6169 67.4%
A 0.261s 5134 56.1%
A 0.309s 3782 41.3%
A 0.346s 2667 29.1%
A 0.377s 1831 20.0%
A 0.408s 1248 13.6%
A 0.438s 776 8.5%
A 0.468s 413 4.5%
A 0.499s 163 1.8%
A 0.529s 27 0.3%
A 0.559s -7 0.0%
B 0.020s 9144 99.9%
B 0.050s 9025 98.6%
B 0.081s 8761 95.7%
B 0.111s 8410 91.9%
B 0.141s 7941 86.7%
B 0.172s 7358 80.4%
B 0.202s 6669 72.9%
B 0.232s 5869 64.1%
B 0.263s 4953 54.1%
B 0.293s 4024 44.0%
B 0.323s 3135 34.2%
B 0.353s 2361 25.8%
B 0.384s 1694 18.5%
B 0.414s 1124 12.3%
B 0.444s 684 7.5%
B 0.475s 347 3.8%
B 0.505s 122 1.3%
B 0.535s 11 0.1%
B 0.566s -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 0.534 seconds.
Shutter B opened to 100.0 percent in 0.565 seconds.
Shutter A closed to 0.0 percent in 0.559 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=1.03e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9193 IDLE
Mon Aug 31 17:27:05 SAST 2026 [elapsed=315 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:
124M Aug 31 17:27 /atlas/obs/03a/61284/03a61284e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Aug 31 17:27:28 SAST 2026 [elapsed=338 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (8 seconds old)
OTA humidity level...WARNING (25%)
WARNING (OTA humidity > 25 (25%); )
Dome humidity exists...OK
Dome humidity is current... OK
Mon Aug 31 17:27:28 SAST 2026 [elapsed=338 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61283.64408107|info|galildriver|using focus model: foc=9187+(4.30)*17.8+(-0.40)*60.2=9239.4
61283.64408643|info|galildriver|o 2 IN | cass: 3038880 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53998108 9194 um b=8f M [focus]
61283.64409551|info|galildriver|o 2 IN | cass: 3038879 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 53998952 9198 um b=8f M [focus]
61283.64410715|info|galildriver|o 2 IN | cass: 3038880 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54005635 9231 um b=8f M [focus]
61283.64411287|info|galildriver|o 2 IN | cass: 3038880 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006886 9238 um b=8f M [focus]
61283.64412046|info|galildriver|o 2 IN | cass: 3038879 15.19 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54007091 9239 um b=0f [cmd]
bestfocus for o...OK
Mon Aug 31 17:27:32 SAST 2026 [elapsed=342 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Aug 31 17:27:58 SAST 2026 [elapsed=368 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
Mon Aug 31 17:28:00 SAST 2026 [elapsed=370 sec] NOTICES: det_dzdx=-894 is outside range +-250 from -558; det_dzdy=2981 is outside range +-250 from -1915;
Mon Aug 31 17:28:00 SAST 2026 [elapsed=370 sec] WARNINGS: OTA humidity > 25 (25%);
Preflight completed with warnings. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Mon Aug 31 17:28:00 SAST 2026 [elapsed=370 sec] Happy observing!
Mon Aug 31 17:28:00 SAST 2026 [elapsed=370 sec] Preflight took 370 seconds to complete.
Mon Aug 31 17:28:00 SAST 2026 [elapsed=370 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 114 1.2% A 0.081s 384 4.2% A 0.111s 737 8.1% A 0.141s 1197 13.1% A 0.172s 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 7434 81.2% A 0.413s 7989 87.3% A 0.443s 8445 92.3% A 0.473s 8784 96.0% A 0.504s 9022 98.6% A 0.534s 9136 99.8% A 0.564s 9153 100.0% B 0.020s 0 0.0% B 0.050s 104 1.1% B 0.081s 368 4.0% B 0.111s 714 7.8% B 0.141s 1185 12.9% B 0.172s 1751 19.1% B 0.202s 2440 26.7% B 0.232s 3240 35.4% B 0.262s 4136 45.2% B 0.293s 5073 55.4% B 0.323s 5959 65.1% B 0.353s 6747 73.7% B 0.383s 7421 81.1% B 0.414s 7985 87.2% B 0.444s 8445 92.3% B 0.474s 8787 96.0% B 0.504s 9017 98.5% B 0.535s 9136 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.051s 9056 98.9% A 0.081s 8778 95.9% A 0.111s 8434 92.1% A 0.141s 7976 87.1% A 0.171s 7402 80.9% A 0.202s 6716 73.4% A 0.232s 5923 64.7% A 0.262s 5014 54.8% A 0.292s 4069 44.5% A 0.323s 3195 34.9% A 0.353s 2410 26.3% A 0.383s 1730 18.9% A 0.413s 1163 12.7% A 0.443s 705 7.7% A 0.474s 366 4.0% A 0.504s 130 1.4% A 0.534s 14 0.2% A 0.565s 2 0.0% B 0.020s 9146 99.9% B 0.050s 9029 98.6% B 0.080s 8783 95.9% B 0.111s 8438 92.2% B 0.141s 7970 87.1% B 0.171s 7400 80.8% B 0.201s 6714 73.3% B 0.232s 5923 64.7% B 0.262s 5043 55.1% B 0.292s 4116 45.0% B 0.322s 3220 35.2% B 0.352s 2441 26.7% B 0.383s 1746 19.1% B 0.413s 1179 12.9% B 0.443s 726 7.9% B 0.473s 375 4.1% B 0.503s 144 1.6% B 0.534s 19 0.2% B 0.564s 2 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R