STH Recent Preflight: 61073
Executing preflight for 61073 at Sun Feb 1 18:41:51 SAST 2026.
Log can be found in /atlas/obs/03/61073/preflight.dat.
Setting donefile '/atlas/obs/03/61073/preflight_complete.20260201164151.14431' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260201164151.14431.
Sun Feb 1 18:41:51 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Feb 1 18:41:51 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [79c6184e-2a72-407a-a6b5-65321d1f2bf4;1800]
Sun Feb 1 18:41:51 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun Feb 1 18:41:52 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun Feb 1 18:41:52 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sun Feb 1 18:41:52 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun Feb 1 18:41:52 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1769964109
OK
Sun Feb 1 18:41:52 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun Feb 1 18:41:52 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
Sun Feb 1 18:41:54 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
Sun Feb 1 18:41:54 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sun Feb 1 18:41:54 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sun Feb 1 16:41:54 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 344 1024 377 0.968 -0.045 0.583
*metbox2.sth.atl .PPS. 1 u 1046 1024 377 0.283 -0.070 0.063
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 155.232.19.6 2 u 546 1024 377 24.319 0.022 0.458
+ntp.as3741.net 146.64.58.41 2 u 796 1024 377 22.918 -0.010 0.349
+ntp2.as3741.net 146.64.8.7 2 u 136 1024 377 7.228 -0.106 0.165
-ntp2.inx.net.za 183.3.52.101 2 u 603 1024 377 7.940 0.151 0.086
#102.222.100.153 155.232.19.7 2 u 483 1024 377 7.878 0.514 0.516
+ntp5.inx.net.za 183.3.52.101 2 u 957 1024 377 7.913 -0.035 0.110
+flipping.cloudh 80.72.67.48 3 u 435 1024 377 8.051 -0.006 0.104
-102.216.37.99 ( 183.3.52.101 2 u 323 1024 377 73.482 -0.003 0.385
-jnb.clearnet.pw 196.21.187.2 2 u 368 1024 377 22.706 -0.414 1.370
Sun Feb 1 18:41:58 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (5757GB)
200GB available in /atlas/red...OK (8519GB)
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 8.2T 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 733G 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
Sun Feb 1 18:41:59 SAST 2026 [elapsed=8 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
Sun Feb 1 18:41:59 SAST 2026 [elapsed=8 sec] Disabling mount tracking.
Sun Feb 1 18:41:59 SAST 2026 [elapsed=8 sec] SERVICES2
Sun Feb 1 18:41:59 SAST 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Feb 1 18:42:03 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= 928kB time=00:00:29.69 bitrate= 256.0kbits/s speed=1.24e+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
Sun Feb 1 18:45:16 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: 41.94 -29.49, az/alt=324.65 +86.49 idle(e) IDLE
Sun Feb 1 18:46:14 SAST 2026 [elapsed=263 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Feb 1 18:46:35 SAST 2026 [elapsed=284 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Sun Feb 1 18:46:35 SAST 2026 [elapsed=284 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (10 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.4C)
Checking CCD plane: Z0=+1809.00 DZDX=-905.00 DZDY=+4711.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Feb 1 18:46:36 SAST 2026 [elapsed=285 sec] WEATHER
status weather: clear 26.1C 21% 23/38kph@282 DP25.0C/31C/d IDLE
...OK
Sun Feb 1 18:46:36 SAST 2026 [elapsed=285 sec] MET
status...OK
met: c=N o=Y Ro28d Co3d Wo9d Ho11h To33d Do2d IDLE
Sun Feb 1 18:46:36 SAST 2026 [elapsed=285 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Feb 1 18:46:36 SAST 2026 [elapsed=285 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 70.87 -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 -1 -0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 11 0.1%
A 0.051s 148 1.6%
A 0.081s 393 4.3%
A 0.111s 747 8.2%
A 0.142s 1207 13.2%
A 0.172s 1889 20.6%
A 0.202s 2468 27.0%
A 0.232s 3289 35.9%
A 0.263s 4194 45.8%
A 0.293s 5176 56.5%
A 0.323s 5989 65.4%
A 0.353s 6799 74.3%
A 0.384s 7463 81.5%
A 0.414s 8019 87.6%
A 0.444s 8473 92.6%
A 0.475s 8791 96.0%
A 0.505s 9026 98.6%
A 0.535s 9149 99.9%
B 0.020s 1 0.0%
B 0.050s 118 1.3%
B 0.081s 386 4.2%
B 0.111s 743 8.1%
B 0.141s 1199 13.1%
B 0.172s 1779 19.4%
B 0.202s 2465 26.9%
B 0.232s 3260 35.6%
B 0.262s 4170 45.6%
B 0.293s 5103 55.7%
B 0.323s 5991 65.4%
B 0.353s 6773 74.0%
B 0.383s 7433 81.2%
B 0.414s 8013 87.5%
B 0.444s 8452 92.3%
B 0.474s 8796 96.1%
B 0.504s 9026 98.6%
B 0.535s 9142 99.9%
B 0.565s 9159 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9063 99.0%
A 0.081s 8771 95.8%
A 0.111s 8412 91.9%
A 0.141s 7967 87.0%
A 0.172s 7352 80.3%
A 0.202s 6669 72.9%
A 0.232s 5871 64.1%
A 0.262s 4983 54.4%
A 0.293s 4011 43.8%
A 0.323s 3169 34.6%
A 0.353s 2374 25.9%
A 0.384s 1689 18.5%
A 0.414s 1154 12.6%
A 0.444s 699 7.6%
A 0.474s 352 3.8%
A 0.505s 132 1.4%
A 0.535s 14 0.2%
A 0.565s -8 0.0%
B 0.020s 9145 99.9%
B 0.050s 9025 98.6%
B 0.081s 8759 95.7%
B 0.111s 8410 91.9%
B 0.141s 7939 86.7%
B 0.172s 7360 80.4%
B 0.202s 6678 73.0%
B 0.232s 5868 64.1%
B 0.262s 4949 54.1%
B 0.293s 4031 44.0%
B 0.323s 3128 34.2%
B 0.353s 2363 25.8%
B 0.384s 1698 18.5%
B 0.414s 1120 12.2%
B 0.444s 683 7.5%
B 0.475s 351 3.8%
B 0.505s 122 1.3%
B 0.535s 12 0.1%
B 0.565s -4 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 99.9 percent in 0.535 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= 228kB time=00:00:07.29 bitrate= 256.1kbits/s speed=1.15e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9271 IDLE
Sun Feb 1 18:47:20 SAST 2026 [elapsed=329 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:
126M Feb 1 18:47 /atlas/obs/03a/61073/03a61073e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Feb 1 18:47:42 SAST 2026 [elapsed=351 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (25 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Feb 1 18:47:42 SAST 2026 [elapsed=351 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61072.69980456|info|galildriver|using focus model: foc=9187+(4.30)*25.8+(-0.40)*60.2=9273.8
61072.69980981|info|galildriver|o 2 IN | cass: 3044702 15.22 mm b=23 move=NO | arm: 408826 475.94 mm b=03 move=OK | foc: 54013784 9272 um b=8f M [focus]
61072.69981983|info|galildriver|o 2 IN | cass: 3044704 15.22 mm b=23 move=NO | arm: 408826 475.94 mm b=03 move=OK | foc: 54014045 9273 um b=2f [cmd]
bestfocus for o...OK
Sun Feb 1 18:47:45 SAST 2026 [elapsed=354 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Feb 1 18:48:15 SAST 2026 [elapsed=384 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
Sun Feb 1 18:48:16 SAST 2026 [elapsed=385 sec] NOTICES: det_dzdx=-905 is outside range +-250 from -558; det_dzdy=4711 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sun Feb 1 18:48:16 SAST 2026 [elapsed=385 sec] Happy observing!
Sun Feb 1 18:48:16 SAST 2026 [elapsed=385 sec] Preflight took 385 seconds to complete.
Sun Feb 1 18:48:16 SAST 2026 [elapsed=385 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 124 1.4% A 0.081s 393 4.3% A 0.111s 744 8.1% A 0.141s 1215 13.3% A 0.171s 1802 19.7% A 0.202s 2489 27.2% A 0.232s 3292 36.0% A 0.262s 4205 45.9% A 0.292s 5107 55.8% A 0.345s 6020 65.8% A 0.375s 7291 79.6% A 0.405s 7886 86.1% A 0.436s 8369 91.4% A 0.466s 8720 95.3% A 0.496s 8985 98.2% A 0.526s 9123 99.7% A 0.557s 9152 100.0% B 0.020s 0 0.0% B 0.050s 121 1.3% B 0.081s 389 4.2% B 0.111s 741 8.1% B 0.141s 1218 13.3% B 0.171s 1792 19.6% B 0.201s 2489 27.2% B 0.232s 3267 35.7% B 0.262s 4168 45.5% B 0.292s 5103 55.7% B 0.322s 5986 65.4% B 0.352s 6771 74.0% B 0.383s 7442 81.3% B 0.413s 8002 87.4% B 0.443s 8457 92.4% B 0.473s 8795 96.1% B 0.503s 9023 98.6% B 0.534s 9139 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9048 98.8% A 0.081s 8788 96.0% A 0.111s 8438 92.2% A 0.141s 7979 87.2% A 0.171s 7402 80.9% A 0.201s 6712 73.3% A 0.232s 5926 64.7% A 0.262s 5010 54.7% A 0.292s 4069 44.5% A 0.323s 3196 34.9% A 0.353s 2404 26.3% A 0.383s 1735 19.0% A 0.413s 1162 12.7% A 0.443s 705 7.7% A 0.474s 369 4.0% A 0.504s 131 1.4% A 0.534s 17 0.2% A 0.564s 3 0.0% B 0.020s 9146 99.9% B 0.051s 9024 98.6% B 0.081s 8781 95.9% B 0.111s 8435 92.1% B 0.141s 7969 87.1% B 0.172s 7398 80.8% B 0.202s 6711 73.3% B 0.232s 5920 64.7% B 0.262s 5011 54.7% B 0.293s 4084 44.6% B 0.323s 3190 34.8% B 0.353s 2415 26.4% B 0.383s 1726 18.9% B 0.414s 1163 12.7% B 0.444s 713 7.8% B 0.474s 366 4.0% B 0.504s 139 1.5% B 0.534s 17 0.2% B 0.565s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R