STH Recent Preflight: 61042
Executing preflight for 61042 at Thu Jan 1 18:49:56 SAST 2026.
Log can be found in /atlas/obs/03/61042/preflight.dat.
Setting donefile '/atlas/obs/03/61042/preflight_complete.20260101164956.14431' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260101164956.14431.
Thu Jan 1 18:49:56 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Jan 1 18:49:56 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [b3a49464-753d-466c-97e8-d977690efa0c;1800]
Thu Jan 1 18:49:56 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu Jan 1 18:49:57 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Jan 1 18:49:57 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu Jan 1 18:49:57 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Jan 1 18:49:57 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1767286191
OK
Thu Jan 1 18:49:57 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Jan 1 18:49:57 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
Thu Jan 1 18:49:58 SAST 2026 [elapsed=2 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
Thu Jan 1 18:49:59 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Jan 1 18:49:59 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Thu Jan 1 16:49:59 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 619 1024 77 1.047 0.111 0.161
*metbox2.sth.atl .PPS. 1 u 1027 1024 377 0.298 0.088 0.199
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-146.64.24.58 229.179.94.34 2 u 511 1024 377 23.374 0.299 0.432
+ntp.as3741.net 146.64.8.7 2 u 1009 1024 377 22.876 -0.033 0.335
+ntp2.as3741.net 146.64.8.7 2 u 505 1024 377 7.337 -0.061 0.283
+ntp2.inx.net.za 210.182.58.253 2 u 910 1024 377 7.175 0.131 0.161
-102.222.100.153 196.21.187.2 2 u 700 1024 377 7.857 0.238 0.764
+ntp5.inx.net.za 183.3.52.101 2 u 590 1024 377 7.243 0.109 0.391
-flipping.cloudh 80.72.67.48 3 u 404 1024 377 8.166 -0.949 0.553
-102.216.37.99 ( 183.3.52.101 2 u 307 1024 377 73.611 0.034 0.199
#jnb.clearnet.pw 196.21.187.2 2 u 383 1024 377 22.815 0.262 1.487
Thu Jan 1 18:50:11 SAST 2026 [elapsed=15 sec] DISKS
200GB available in /atlas/obs...OK (6062GB)
200GB available in /atlas/red...OK (8893GB)
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 34G 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 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 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
Thu Jan 1 18:50:11 SAST 2026 [elapsed=15 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
Thu Jan 1 18:50:11 SAST 2026 [elapsed=15 sec] Disabling mount tracking.
Thu Jan 1 18:50:11 SAST 2026 [elapsed=15 sec] SERVICES2
Thu Jan 1 18:50:11 SAST 2026 [elapsed=15 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Jan 1 18:50:16 SAST 2026 [elapsed=20 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= 910kB time=00:00:29.12 bitrate= 256.0kbits/s speed=1.41e+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/OPEN (0%) IDLE
Thu Jan 1 18:52:46 SAST 2026 [elapsed=170 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: 13.27 -29.49, az/alt=324.69 +86.49 idle(e) IDLE
Thu Jan 1 18:53:44 SAST 2026 [elapsed=228 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Jan 1 18:54:05 SAST 2026 [elapsed=249 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=43.7 IDLE
Thu Jan 1 18:54:05 SAST 2026 [elapsed=249 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (8 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.8C)
Checking CCD plane: Z0=+1789.00 DZDX=-901.00 DZDY=+4234.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Jan 1 18:54:05 SAST 2026 [elapsed=249 sec] WEATHER
status weather: clear 23.6C 26% 20/27kph@277 DP19.7C/-22C/d IDLE
...OK
Thu Jan 1 18:54:05 SAST 2026 [elapsed=249 sec] MET
status...OK
met: c=N o=Y Ro2d Co17h Wo1d Ho10h To2d Do2d IDLE
Thu Jan 1 18:54:05 SAST 2026 [elapsed=249 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Jan 1 18:54:07 SAST 2026 [elapsed=251 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 42.19 -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 2 0.0%
B 0.020s -2 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 8 0.1%
A 0.051s 109 1.2%
A 0.081s 394 4.3%
A 0.111s 734 8.0%
A 0.142s 1191 13.0%
A 0.172s 1783 19.5%
A 0.202s 2466 26.9%
A 0.233s 3260 35.6%
A 0.263s 4164 45.5%
A 0.293s 5113 55.9%
A 0.324s 5989 65.4%
A 0.354s 6783 74.1%
A 0.384s 7438 81.3%
A 0.414s 7999 87.4%
A 0.445s 8468 92.5%
A 0.475s 8790 96.0%
A 0.506s 9026 98.6%
A 0.536s 9152 100.0%
B 0.020s 1 0.0%
B 0.051s 94 1.0%
B 0.081s 386 4.2%
B 0.111s 729 8.0%
B 0.141s 1199 13.1%
B 0.171s 1778 19.4%
B 0.202s 2467 26.9%
B 0.232s 3259 35.6%
B 0.262s 4168 45.5%
B 0.293s 5105 55.8%
B 0.323s 5991 65.4%
B 0.353s 6775 74.0%
B 0.383s 7433 81.2%
B 0.414s 8010 87.5%
B 0.444s 8454 92.4%
B 0.474s 8795 96.1%
B 0.505s 9027 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 0.051s 9056 98.9%
A 0.081s 8760 95.7%
A 0.111s 8400 91.8%
A 0.141s 7952 86.9%
A 0.172s 7351 80.3%
A 0.202s 6668 72.8%
A 0.232s 5868 64.1%
A 0.263s 4952 54.1%
A 0.293s 4016 43.9%
A 0.323s 3084 33.7%
A 0.354s 2352 25.7%
A 0.384s 1691 18.5%
A 0.414s 1133 12.4%
A 0.444s 684 7.5%
A 0.475s 346 3.8%
A 0.505s 123 1.3%
A 0.535s 11 0.1%
A 0.566s -6 0.0%
B 0.020s 9146 99.9%
B 0.050s 9004 98.4%
B 0.081s 8779 95.9%
B 0.111s 8437 92.2%
B 0.141s 7973 87.1%
B 0.171s 7338 80.2%
B 0.202s 6723 73.4%
B 0.232s 5922 64.7%
B 0.262s 5010 54.7%
B 0.293s 4087 44.6%
B 0.323s 3188 34.8%
B 0.353s 2407 26.3%
B 0.383s 1738 19.0%
B 0.414s 1154 12.6%
B 0.444s 707 7.7%
B 0.474s 369 4.0%
B 0.504s 136 1.5%
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 0.536 seconds.
Shutter B opened to 100.0 percent in 0.565 seconds.
Shutter A closed to 0.0 percent in 0.566 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=1.11e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9262 IDLE
Thu Jan 1 18:54:49 SAST 2026 [elapsed=293 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=43.7 IDLE
taking preflight exposures:
acam...OK
acam image:
126M Jan 1 18:55 /atlas/obs/03a/61042/03a61042e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Jan 1 18:55:12 SAST 2026 [elapsed=316 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (25 seconds old)
OTA humidity level...OK (4%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Jan 1 18:55:12 SAST 2026 [elapsed=316 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61041.70500631|info|galildriver|using focus model: foc=9187+(4.30)*23.4+(-0.40)*60.2=9263.5
61041.70501120|info|galildriver|o 2 IN | cass: 3047531 15.24 mm b=23 move=NO | arm: 408826 475.94 mm b=03 move=OK | foc: 54011967 9263 um b=2f [cmd]
bestfocus for o...OK
Thu Jan 1 18:55:13 SAST 2026 [elapsed=317 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Jan 1 18:55:43 SAST 2026 [elapsed=347 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
Thu Jan 1 18:55:44 SAST 2026 [elapsed=348 sec] NOTICES: det_dzdx=-901 is outside range +-250 from -558; det_dzdy=4234 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Thu Jan 1 18:55:44 SAST 2026 [elapsed=348 sec] Happy observing!
Thu Jan 1 18:55:44 SAST 2026 [elapsed=348 sec] Preflight took 348 seconds to complete.
Thu Jan 1 18:55:44 SAST 2026 [elapsed=348 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 123 1.3% A 0.081s 392 4.3% A 0.111s 744 8.1% A 0.142s 1214 13.3% A 0.172s 1802 19.7% A 0.203s 2489 27.2% A 0.233s 3294 36.0% A 0.263s 4205 45.9% A 0.294s 5165 56.4% A 0.324s 6046 66.0% A 0.355s 6826 74.6% A 0.385s 7471 81.6% A 0.416s 8042 87.9% A 0.446s 8494 92.8% A 0.477s 8815 96.3% A 0.507s 9046 98.8% A 0.538s 9143 99.9% A 0.568s 9152 100.0% B 0.020s 2 0.0% B 0.051s 120 1.3% B 0.082s 389 4.2% B 0.112s 756 8.3% B 0.143s 1236 13.5% B 0.173s 1816 19.8% B 0.204s 2517 27.5% B 0.234s 3350 36.6% B 0.265s 4258 46.5% B 0.295s 5192 56.7% B 0.326s 6096 66.6% B 0.357s 6866 75.0% B 0.387s 7517 82.1% B 0.417s 8082 88.3% B 0.448s 8505 92.9% B 0.478s 8831 96.5% B 0.508s 9049 98.9% B 0.539s 9147 99.9% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.051s 9042 98.8% A 0.081s 8772 95.8% A 0.112s 8413 91.9% A 0.142s 7946 86.8% A 0.173s 7342 80.2% A 0.203s 6643 72.6% A 0.234s 5846 63.9% A 0.265s 4886 53.4% A 0.295s 3956 43.2% A 0.325s 3089 33.7% A 0.356s 2313 25.3% A 0.386s 1656 18.1% A 0.417s 1096 12.0% A 0.447s 656 7.2% A 0.477s 332 3.6% A 0.508s 104 1.1% A 0.538s 9 0.1% B 0.020s 9144 99.9% B 0.051s 9017 98.5% B 0.081s 8761 95.7% B 0.112s 8421 92.0% B 0.142s 7935 86.7% B 0.173s 7356 80.4% B 0.203s 6666 72.8% B 0.234s 5838 63.8% B 0.264s 4920 53.7% B 0.294s 3993 43.6% B 0.325s 3110 34.0% B 0.355s 2346 25.6% B 0.385s 1663 18.2% B 0.416s 1116 12.2% B 0.446s 673 7.4% B 0.476s 338 3.7% B 0.507s 121 1.3% B 0.538s 10 0.1% B 0.568s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R