STH Recent Preflight: 61051
Executing preflight for 61051 at Sat Jan 10 18:50:38 SAST 2026.
Log can be found in /atlas/obs/03/61051/preflight.dat.
Setting donefile '/atlas/obs/03/61051/preflight_complete.20260110165038.14431' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260110165038.14431.
Sat Jan 10 18:50:39 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sat Jan 10 18:50:39 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [31bb0aae-2dde-40c2-be89-5f03540d286b;1800]
Sat Jan 10 18:50:39 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sat Jan 10 18:50:40 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sat Jan 10 18:50:40 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sat Jan 10 18:50:40 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sat Jan 10 18:50:40 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1768063835
OK
Sat Jan 10 18:50:40 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sat Jan 10 18:50:40 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
Sat Jan 10 18:50:41 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
Sat Jan 10 18:50:42 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sat Jan 10 18:50:42 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sat Jan 10 16:50:42 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 563 1024 377 1.090 0.031 0.134
*metbox2.sth.atl .PPS. 1 u 93 1024 377 0.314 -0.009 0.119
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 210.182.58.253 2 u 102 1024 377 24.402 0.583 0.538
+ntp.as3741.net 146.64.58.41 2 u 427 1024 377 22.934 -0.092 0.126
+ntp2.as3741.net 146.64.8.7 2 u 146 1024 377 7.305 0.101 0.092
+ntp2.inx.net.za 210.182.58.253 2 u 630 1024 377 7.117 0.057 0.117
#102.222.100.153 155.232.19.7 2 u 660 1024 377 7.873 -0.829 0.343
+ntp5.inx.net.za 183.3.52.101 2 u 645 1024 377 7.246 0.117 0.174
+flipping.cloudh 80.72.67.48 3 u 637 1024 377 8.255 0.164 0.431
+102.216.37.99 ( 210.182.58.253 2 u 341 1024 377 73.486 0.008 0.157
-139.84.231.151 196.21.187.2 2 u 420 1024 377 22.799 -0.294 1.474
Sat Jan 10 18:50:44 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (5972GB)
200GB available in /atlas/red...OK (8940GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.6T 5.7T 45% /
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 4.9T 8.6T 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
Sat Jan 10 18:50:44 SAST 2026 [elapsed=5 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
Sat Jan 10 18:50:44 SAST 2026 [elapsed=5 sec] Disabling mount tracking.
Sat Jan 10 18:50:44 SAST 2026 [elapsed=5 sec] SERVICES2
Sat Jan 10 18:50:44 SAST 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sat Jan 10 18:50:49 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= 910kB time=00:00:29.12 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
Sat Jan 10 18:54:02 SAST 2026 [elapsed=203 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: 22.46 -29.49, az/alt=324.69 +86.49 idle(e) IDLE
Sat Jan 10 18:54:59 SAST 2026 [elapsed=260 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sat Jan 10 18:55:24 SAST 2026 [elapsed=285 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=184.7 IDLE
Sat Jan 10 18:55:24 SAST 2026 [elapsed=285 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (7 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.5C)
Checking CCD plane: Z0=+1802.00 DZDX=-907.00 DZDY=+4512.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sat Jan 10 18:55:24 SAST 2026 [elapsed=285 sec] WEATHER
status weather: clear 25.1C 38% 19/24kph@173 DP13.1C/-91C/d IDLE
...OK
Sat Jan 10 18:55:24 SAST 2026 [elapsed=285 sec] MET
status...OK
met: c=N o=Y Ro6d Co7h Wo10d Ho9h To11d Do5d IDLE
Sat Jan 10 18:55:24 SAST 2026 [elapsed=285 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sat Jan 10 18:55:26 SAST 2026 [elapsed=287 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 51.38 -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 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 8 0.1%
A 0.051s 111 1.2%
A 0.081s 394 4.3%
A 0.112s 759 8.3%
A 0.142s 1191 13.0%
A 0.172s 1804 19.7%
A 0.203s 2489 27.2%
A 0.233s 3287 35.9%
A 0.263s 4195 45.8%
A 0.294s 5145 56.2%
A 0.324s 6018 65.7%
A 0.355s 6803 74.3%
A 0.385s 7458 81.5%
A 0.415s 8016 87.6%
A 0.446s 8477 92.6%
A 0.476s 8809 96.2%
A 0.506s 9027 98.6%
A 0.537s 9152 100.0%
B 0.020s 0 0.0%
B 0.051s 91 1.0%
B 0.081s 387 4.2%
B 0.111s 727 7.9%
B 0.142s 1198 13.1%
B 0.172s 1777 19.4%
B 0.203s 2465 26.9%
B 0.233s 3260 35.6%
B 0.263s 4169 45.5%
B 0.294s 5104 55.8%
B 0.324s 5992 65.5%
B 0.354s 6796 74.2%
B 0.385s 7436 81.2%
B 0.415s 8026 87.7%
B 0.445s 8465 92.5%
B 0.476s 8805 96.2%
B 0.506s 9033 98.7%
B 0.536s 9143 99.9%
B 0.567s 9158 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.050s 9068 99.1%
A 0.081s 8781 95.9%
A 0.111s 8425 92.0%
A 0.141s 7984 87.2%
A 0.172s 7392 80.8%
A 0.202s 6715 73.4%
A 0.232s 5925 64.7%
A 0.262s 5013 54.8%
A 0.293s 4072 44.5%
A 0.323s 3193 34.9%
A 0.353s 2400 26.2%
A 0.384s 1729 18.9%
A 0.414s 1167 12.7%
A 0.444s 712 7.8%
A 0.474s 363 4.0%
A 0.505s 137 1.5%
A 0.535s 15 0.2%
A 0.565s -7 0.0%
B 0.020s 9146 99.9%
B 0.050s 9032 98.7%
B 0.081s 8769 95.8%
B 0.111s 8424 92.0%
B 0.141s 7955 86.9%
B 0.171s 7399 80.8%
B 0.202s 6717 73.4%
B 0.232s 5895 64.4%
B 0.262s 4983 54.4%
B 0.293s 4050 44.2%
B 0.323s 3166 34.6%
B 0.353s 2383 26.0%
B 0.384s 1715 18.7%
B 0.414s 1141 12.5%
B 0.444s 635 6.9%
B 0.475s 358 3.9%
B 0.505s 129 1.4%
B 0.535s 14 0.2%
B 0.566s -4 0.0%
A 1 0.0mm 15 N F R | B -3 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.537 seconds.
Shutter B opened to 100.0 percent in 0.567 seconds.
Shutter A closed to 0.0 percent in 0.565 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=1.16e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9268 IDLE
Sat Jan 10 18:56:08 SAST 2026 [elapsed=329 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=184.7 IDLE
taking preflight exposures:
acam...OK
acam image:
125M Jan 10 18:56 /atlas/obs/03a/61051/03a61051e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sat Jan 10 18:56:31 SAST 2026 [elapsed=352 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (14 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Sat Jan 10 18:56:31 SAST 2026 [elapsed=352 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61050.70592214|info|galildriver|using focus model: foc=9187+(4.30)*24.9+(-0.40)*60.2=9270.0
61050.70592704|info|galildriver|o 2 IN | cass: 3046069 15.23 mm b=23 move=NO | arm: 408826 475.94 mm b=03 move=OK | foc: 54013110 9269 um b=2f [cmd]
bestfocus for o...OK
Sat Jan 10 18:56:33 SAST 2026 [elapsed=354 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sat Jan 10 18:57:03 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
Sat Jan 10 18:57:04 SAST 2026 [elapsed=385 sec] NOTICES: det_dzdx=-907 is outside range +-250 from -558; det_dzdy=4512 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sat Jan 10 18:57:04 SAST 2026 [elapsed=385 sec] Happy observing!
Sat Jan 10 18:57:04 SAST 2026 [elapsed=385 sec] Preflight took 385 seconds to complete.
Sat Jan 10 18:57:04 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 3 0.0% A 0.051s 110 1.2% A 0.081s 373 4.1% A 0.111s 717 7.8% A 0.141s 1181 12.9% A 0.171s 1760 19.2% A 0.202s 2441 26.7% A 0.232s 3238 35.4% A 0.262s 4143 45.3% A 0.292s 5078 55.5% A 0.323s 5964 65.2% A 0.353s 6756 73.8% A 0.383s 7412 81.0% A 0.413s 7992 87.3% A 0.443s 8446 92.3% A 0.474s 8778 95.9% A 0.504s 9023 98.6% A 0.534s 9138 99.8% A 0.564s 9152 100.0% B 0.020s 0 0.0% B 0.050s 121 1.3% B 0.080s 389 4.2% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.171s 1773 19.4% B 0.201s 2465 26.9% B 0.232s 3267 35.7% B 0.262s 4167 45.5% B 0.292s 5103 55.7% B 0.322s 5988 65.4% B 0.353s 6771 74.0% B 0.383s 7440 81.3% B 0.413s 8002 87.4% B 0.444s 8457 92.4% B 0.474s 8796 96.1% B 0.504s 9023 98.6% B 0.534s 9138 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9039 98.7% A 0.081s 8776 95.9% A 0.111s 8423 92.0% A 0.141s 7959 86.9% A 0.171s 7378 80.6% A 0.202s 6688 73.1% A 0.232s 5897 64.4% A 0.262s 4976 54.4% A 0.292s 4038 44.1% A 0.322s 3167 34.6% A 0.353s 2381 26.0% A 0.383s 1716 18.7% A 0.413s 1145 12.5% A 0.443s 694 7.6% A 0.474s 359 3.9% A 0.504s 125 1.4% A 0.534s 15 0.2% A 0.564s 3 0.0% B 0.020s 9145 99.9% B 0.051s 9017 98.5% B 0.081s 8771 95.8% B 0.111s 8422 92.0% B 0.141s 7951 86.9% B 0.172s 7376 80.6% B 0.202s 6688 73.1% B 0.232s 5892 64.4% B 0.262s 4983 54.4% B 0.292s 4053 44.3% B 0.323s 3162 34.5% B 0.353s 2390 26.1% B 0.383s 1706 18.6% B 0.413s 1149 12.6% B 0.444s 700 7.6% B 0.474s 357 3.9% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.564s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R