STH Recent Preflight: 61096
Executing preflight for 61096 at Tue Feb 24 18:20:14 SAST 2026.
Log can be found in /atlas/obs/03/61096/preflight.dat.
Setting donefile '/atlas/obs/03/61096/preflight_complete.20260224162014.25684' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260224162014.25684.
Tue Feb 24 18:20:14 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Tue Feb 24 18:20:14 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [c4c3feaa-d28f-4f5b-b593-a2eaba0fd064;1800]
Tue Feb 24 18:20:14 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Tue Feb 24 18:20:15 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Tue Feb 24 18:20:15 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Tue Feb 24 18:20:15 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Tue Feb 24 18:20:15 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1771950011
OK
Tue Feb 24 18:20:15 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Tue Feb 24 18:20:15 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 Feb 24 18:20:17 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 Feb 24 18:20:17 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Tue Feb 24 18:20:17 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Tue Feb 24 16:20:17 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 565 1024 377 1.036 0.037 0.131
+metbox2.sth.atl .PPS. 1 u 472 1024 377 0.284 0.008 0.018
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 422 1024 377 23.309 -0.520 0.650
+ntp.as3741.net 146.64.8.7 2 u 616 1024 377 22.730 -0.055 0.953
-ntp2.as3741.net 155.232.19.6 2 u 896 1024 377 7.222 -0.046 0.652
-ntp2.inx.net.za 183.3.52.101 2 u 810 1024 377 7.275 -0.073 0.127
-102.222.100.153 155.232.19.6 2 u 813 1024 377 7.933 -0.062 0.408
-ntp5.inx.net.za 210.182.58.253 2 u 657 1024 377 7.885 0.046 0.196
-flipping.cloudh 80.72.67.48 3 u 511 1024 377 8.087 0.102 0.332
102.216.37.99 ( 210.182.58.253 2 u 22d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 102.176.229.251 2 u 730 1024 377 22.808 0.409 0.467
Tue Feb 24 18:20:21 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (6151GB)
200GB available in /atlas/red...OK (8995GB)
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 43% /
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 8.6T 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
Tue Feb 24 18:20:21 SAST 2026 [elapsed=7 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 Feb 24 18:20:22 SAST 2026 [elapsed=8 sec] Disabling mount tracking.
Tue Feb 24 18:20:22 SAST 2026 [elapsed=8 sec] SERVICES2
Tue Feb 24 18:20:22 SAST 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Tue Feb 24 18:20:26 SAST 2026 [elapsed=12 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= 932kB time=00:00:29.82 bitrate= 256.0kbits/s speed=1.45e+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 Feb 24 18:23:44 SAST 2026 [elapsed=210 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: 59.22 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Tue Feb 24 18:24:43 SAST 2026 [elapsed=269 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Tue Feb 24 18:25:05 SAST 2026 [elapsed=291 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Tue Feb 24 18:25:05 SAST 2026 [elapsed=291 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.4C)
Checking CCD plane: Z0=+1752.00 DZDX=-893.00 DZDY=+3422.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Tue Feb 24 18:25:05 SAST 2026 [elapsed=291 sec] WEATHER
status weather: C 17.1C 70% 21/27kph@297 DP3.9C/-68C/d IDLE
...OK
Tue Feb 24 18:25:05 SAST 2026 [elapsed=291 sec] MET
status...OK
met: c=N o=Y Ro19h Co1h Wo2d Ho6h To56d Do1d IDLE
Tue Feb 24 18:25:05 SAST 2026 [elapsed=291 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Tue Feb 24 18:25:07 SAST 2026 [elapsed=293 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 88.14 -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 -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 0.051s 116 1.3%
A 0.081s 404 4.4%
A 0.111s 746 8.1%
A 0.141s 1208 13.2%
A 0.172s 1804 19.7%
A 0.202s 2489 27.2%
A 0.232s 3287 35.9%
A 0.262s 4161 45.5%
A 0.292s 5115 55.9%
A 0.323s 5991 65.4%
A 0.353s 6779 74.1%
A 0.383s 7439 81.3%
A 0.413s 7999 87.4%
A 0.444s 8465 92.5%
A 0.474s 8792 96.0%
A 0.504s 9020 98.5%
A 0.534s 9152 100.0%
B 0.020s 1 0.0%
B 0.050s 90 1.0%
B 0.081s 375 4.1%
B 0.111s 713 7.8%
B 0.141s 1179 12.9%
B 0.172s 1758 19.2%
B 0.202s 2440 26.7%
B 0.232s 3231 35.3%
B 0.262s 4138 45.2%
B 0.293s 5073 55.4%
B 0.323s 5965 65.2%
B 0.353s 6753 73.8%
B 0.384s 7416 81.0%
B 0.414s 7993 87.3%
B 0.444s 8455 92.4%
B 0.474s 8786 96.0%
B 0.505s 9028 98.6%
B 0.535s 9144 99.9%
B 0.565s 9161 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9062 99.0%
A 0.081s 8772 95.8%
A 0.111s 8415 91.9%
A 0.141s 7967 87.0%
A 0.171s 7373 80.5%
A 0.202s 6693 73.1%
A 0.232s 5896 64.4%
A 0.262s 5013 54.8%
A 0.292s 4044 44.2%
A 0.323s 3166 34.6%
A 0.353s 2399 26.2%
A 0.383s 1730 18.9%
A 0.413s 1164 12.7%
A 0.443s 711 7.8%
A 0.474s 365 4.0%
A 0.504s 135 1.5%
A 0.534s 14 0.2%
A 0.565s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9033 98.7%
B 0.081s 8771 95.8%
B 0.111s 8425 92.0%
B 0.141s 7956 86.9%
B 0.172s 7380 80.6%
B 0.202s 6695 73.1%
B 0.232s 5896 64.4%
B 0.263s 4983 54.4%
B 0.293s 4050 44.2%
B 0.323s 3165 34.6%
B 0.353s 2383 26.0%
B 0.383s 1714 18.7%
B 0.414s 1140 12.5%
B 0.444s 697 7.6%
B 0.474s 356 3.9%
B 0.505s 127 1.4%
B 0.535s 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=1.1e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9240 IDLE
Tue Feb 24 18:25:47 SAST 2026 [elapsed=333 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:
122M Feb 24 18:26 /atlas/obs/03a/61096/03a61096e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Tue Feb 24 18:26:09 SAST 2026 [elapsed=355 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 Feb 24 18:26:09 SAST 2026 [elapsed=355 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61095.68483564|info|galildriver|using focus model: foc=9187+(4.30)*18.9+(-0.40)*60.2=9244.2
61095.68484089|info|galildriver|o 2 IN | cass: 3049366 15.25 mm b=23 move=NO | arm: 408793 475.90 mm b=03 move=OK | foc: 54007500 9241 um b=8f M [focus]
61095.68485149|info|galildriver|o 2 IN | cass: 3049361 15.25 mm b=23 move=NO | arm: 408793 475.90 mm b=03 move=OK | foc: 54007567 9241 um b=2f [cmd]
bestfocus for o...OK
Tue Feb 24 18:26:11 SAST 2026 [elapsed=357 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Tue Feb 24 18:26:41 SAST 2026 [elapsed=387 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 Feb 24 18:26:42 SAST 2026 [elapsed=388 sec] NOTICES: det_dzdx=-893 is outside range +-250 from -558; det_dzdy=3422 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 Feb 24 18:26:42 SAST 2026 [elapsed=388 sec] Happy observing!
Tue Feb 24 18:26:42 SAST 2026 [elapsed=388 sec] Preflight took 388 seconds to complete.
Tue Feb 24 18:26:42 SAST 2026 [elapsed=388 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 117 1.3% A 0.081s 382 4.2% A 0.111s 730 8.0% A 0.141s 1197 13.1% A 0.171s 1779 19.4% A 0.202s 2465 26.9% A 0.232s 3266 35.7% A 0.262s 4175 45.6% A 0.293s 5107 55.8% A 0.323s 5990 65.4% A 0.353s 6780 74.1% A 0.383s 7431 81.2% A 0.413s 8008 87.5% A 0.444s 8459 92.4% A 0.474s 8788 96.0% A 0.504s 9030 98.6% A 0.534s 9140 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.050s 115 1.3% B 0.081s 379 4.1% B 0.111s 730 8.0% B 0.141s 1187 13.0% B 0.171s 1753 19.2% B 0.201s 2444 26.7% B 0.232s 3242 35.4% B 0.262s 4138 45.2% B 0.292s 5075 55.4% B 0.322s 5961 65.1% B 0.352s 6749 73.7% B 0.383s 7419 81.0% B 0.413s 7986 87.2% B 0.443s 8445 92.3% B 0.473s 8785 96.0% B 0.504s 9018 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9149 99.9% A 0.050s 9037 98.7% A 0.081s 8766 95.8% A 0.111s 8410 91.9% A 0.141s 7940 86.7% A 0.171s 7358 80.4% A 0.202s 6662 72.8% A 0.232s 5869 64.1% A 0.262s 4944 54.0% A 0.292s 4008 43.8% A 0.323s 3137 34.3% A 0.353s 2358 25.8% A 0.383s 1695 18.5% A 0.413s 1126 12.3% A 0.444s 681 7.4% A 0.474s 349 3.8% A 0.504s 123 1.3% A 0.534s 14 0.2% A 0.564s 2 0.0% B 0.020s 9141 99.9% B 0.050s 9010 98.4% B 0.081s 8761 95.7% B 0.111s 8406 91.8% B 0.141s 7934 86.7% B 0.171s 7379 80.6% B 0.202s 6687 73.1% B 0.232s 5862 64.0% B 0.262s 4982 54.4% B 0.292s 4053 44.3% B 0.323s 3163 34.6% B 0.353s 2390 26.1% B 0.383s 1702 18.6% B 0.413s 1148 12.5% B 0.444s 699 7.6% B 0.474s 356 3.9% B 0.504s 133 1.5% B 0.534s 14 0.2% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R