STH Recent Preflight: 61052
Executing preflight for 61052 at Sun Jan 11 18:50:20 SAST 2026.
Log can be found in /atlas/obs/03/61052/preflight.dat.
Setting donefile '/atlas/obs/03/61052/preflight_complete.20260111165020.14431' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260111165020.14431.
Sun Jan 11 18:50:20 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Jan 11 18:50:20 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [cab5baf6-de1e-4355-ab15-a7b763a6c5aa;1800]
Sun Jan 11 18:50:20 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun Jan 11 18:50:21 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun Jan 11 18:50:21 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Sun Jan 11 18:50:21 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun Jan 11 18:50:21 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1768150221
OK
Sun Jan 11 18:50:21 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun Jan 11 18:50:21 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 Jan 11 18:50:23 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 Jan 11 18:50:23 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sun Jan 11 18:50:23 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Sun Jan 11 16:50:23 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 79 1024 377 1.054 -0.180 0.170
+metbox2.sth.atl .PPS. 1 u 998 1024 377 0.300 -0.135 0.130
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 210.182.58.253 2 u 69 1024 377 24.437 0.148 0.228
+ntp.as3741.net 146.64.58.41 2 u 238 1024 377 22.958 -0.154 0.137
-ntp2.as3741.net 146.64.8.7 2 u 900 1024 377 7.287 0.172 0.227
ntp2.inx.net.za 183.3.52.101 2 u 716 1024 377 7.895 2.562 3086.02
-102.222.100.153 196.21.187.2 2 u 522 1024 377 7.893 -0.118 0.276
+ntp5.inx.net.za 210.182.58.253 2 u 715 1024 377 7.328 -0.111 0.152
-flipping.cloudh 80.72.67.48 3 u 585 1024 377 8.142 0.056 0.095
-102.216.37.99 ( 210.182.58.253 2 u 1039 1024 377 73.481 -0.016 0.106
-jnb.clearnet.pw 196.21.187.2 2 u 25 1024 377 22.780 5.485 4.099
Sun Jan 11 18:50:27 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (5970GB)
200GB available in /atlas/red...OK (8945GB)
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
Sun Jan 11 18:50:27 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
Sun Jan 11 18:50:27 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Sun Jan 11 18:50:27 SAST 2026 [elapsed=7 sec] SERVICES2
Sun Jan 11 18:50:27 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Jan 11 18:50:32 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= 924kB time=00:00:29.56 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
Sun Jan 11 18:53:37 SAST 2026 [elapsed=197 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: 23.34 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Sun Jan 11 18:54:36 SAST 2026 [elapsed=256 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Jan 11 18:54:57 SAST 2026 [elapsed=277 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.6 IDLE
Sun Jan 11 18:54:57 SAST 2026 [elapsed=277 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (0 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-53.2C)
Checking CCD plane: Z0=+1817.00 DZDX=-911.00 DZDY=+4883.00
acam: -53C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Jan 11 18:54:57 SAST 2026 [elapsed=277 sec] WEATHER
status weather: W 27.5C 20% 42/48kph@314 DP24.7C/-14C/d IDLE
...OK
Sun Jan 11 18:54:57 SAST 2026 [elapsed=277 sec] MET
status...OK
met: c=N o=Y Ro7d Co1d Wo11d Ho1d To12d Do6d IDLE
Sun Jan 11 18:54:57 SAST 2026 [elapsed=277 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Jan 11 18:54:59 SAST 2026 [elapsed=279 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 52.27 -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 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 -1 -0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 12 0.1%
A 0.051s 110 1.2%
A 0.081s 403 4.4%
A 0.112s 761 8.3%
A 0.142s 1225 13.4%
A 0.172s 1828 20.0%
A 0.203s 2514 27.5%
A 0.233s 3315 36.2%
A 0.263s 4228 46.2%
A 0.294s 5172 56.5%
A 0.324s 6041 66.0%
A 0.355s 6829 74.6%
A 0.385s 7479 81.7%
A 0.415s 8049 87.9%
A 0.446s 8490 92.7%
A 0.476s 8839 96.6%
A 0.507s 9038 98.7%
A 0.537s 9156 100.0%
B 0.020s 2 0.0%
B 0.051s 105 1.1%
B 0.081s 395 4.3%
B 0.112s 807 8.8%
B 0.142s 1235 13.5%
B 0.172s 1818 19.9%
B 0.203s 2516 27.5%
B 0.233s 3342 36.5%
B 0.264s 4229 46.2%
B 0.294s 5160 56.4%
B 0.324s 6050 66.1%
B 0.355s 6843 74.8%
B 0.385s 7475 81.7%
B 0.416s 8058 88.0%
B 0.446s 8490 92.7%
B 0.476s 8822 96.4%
B 0.506s 9042 98.8%
B 0.537s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9061 99.0%
A 0.081s 8769 95.8%
A 0.111s 8412 91.9%
A 0.142s 7968 87.0%
A 0.172s 7371 80.5%
A 0.202s 6692 73.1%
A 0.233s 5871 64.1%
A 0.263s 4957 54.2%
A 0.293s 4009 43.8%
A 0.324s 3137 34.3%
A 0.354s 2356 25.7%
A 0.385s 1688 18.4%
A 0.415s 1133 12.4%
A 0.446s 675 7.4%
A 0.476s 347 3.8%
A 0.506s 121 1.3%
A 0.537s 8 0.1%
B 0.020s 9147 99.9%
B 0.051s 9035 98.7%
B 0.081s 8769 95.8%
B 0.111s 8422 92.0%
B 0.142s 7958 86.9%
B 0.172s 7379 80.6%
B 0.202s 6705 73.2%
B 0.233s 5896 64.4%
B 0.263s 4979 54.4%
B 0.293s 4061 44.4%
B 0.323s 3156 34.5%
B 0.354s 2386 26.1%
B 0.384s 1719 18.8%
B 0.414s 1137 12.4%
B 0.445s 697 7.6%
B 0.475s 358 3.9%
B 0.505s 128 1.4%
B 0.536s 6 0.1%
A 1 0.0mm 15 N F R | B -6 -0.2mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.537 seconds.
Shutter B opened to 99.9 percent in 0.537 seconds.
Shutter A closed to 0.1 percent in 0.537 seconds.
Shutter B closed to 0.1 percent in 0.536 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed=1.04e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9276 IDLE
Sun Jan 11 18:55:41 SAST 2026 [elapsed=321 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.6 IDLE
taking preflight exposures:
acam...OK
acam image:
125M Jan 11 18:55 /atlas/obs/03a/61052/03a61052e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Jan 11 18:56:03 SAST 2026 [elapsed=343 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (76 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Jan 11 18:56:03 SAST 2026 [elapsed=343 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61051.70560005|info|galildriver|using focus model: foc=9187+(4.30)*26.9+(-0.40)*60.2=9278.6
61051.70560530|info|galildriver|o 2 IN | cass: 3044685 15.22 mm b=23 move=NO | arm: 408826 475.94 mm b=03 move=OK | foc: 54014802 9277 um b=8f M [focus]
61051.70561532|info|galildriver|o 2 IN | cass: 3044690 15.22 mm b=23 move=NO | arm: 408826 475.94 mm b=03 move=OK | foc: 54014931 9278 um b=2f [cmd]
bestfocus for o...OK
Sun Jan 11 18:56:06 SAST 2026 [elapsed=346 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Jan 11 18:56:35 SAST 2026 [elapsed=375 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 Jan 11 18:56:37 SAST 2026 [elapsed=377 sec] NOTICES: det_dzdx=-911 is outside range +-250 from -558; det_dzdy=4883 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 Jan 11 18:56:37 SAST 2026 [elapsed=377 sec] Happy observing!
Sun Jan 11 18:56:37 SAST 2026 [elapsed=377 sec] Preflight took 377 seconds to complete.
Sun Jan 11 18:56:37 SAST 2026 [elapsed=377 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 122 1.3% A 0.081s 401 4.4% A 0.112s 757 8.3% A 0.142s 1233 13.5% A 0.173s 1822 19.9% A 0.204s 2539 27.7% A 0.234s 3348 36.6% A 0.265s 4266 46.6% A 0.295s 5194 56.7% A 0.326s 6100 66.6% A 0.356s 6870 75.0% A 0.387s 7511 82.1% A 0.417s 8076 88.2% A 0.448s 8516 93.0% A 0.478s 8833 96.5% A 0.509s 9056 98.9% A 0.539s 9145 99.9% B 0.020s 0 0.0% B 0.051s 113 1.2% B 0.081s 378 4.1% B 0.112s 727 7.9% B 0.142s 1201 13.1% B 0.173s 1794 19.6% B 0.203s 2490 27.2% B 0.234s 3296 36.0% B 0.264s 4196 45.8% B 0.294s 5134 56.1% B 0.325s 6014 65.7% B 0.355s 6794 74.2% B 0.386s 7479 81.7% B 0.416s 8034 87.8% B 0.447s 8482 92.7% B 0.478s 8814 96.3% B 0.508s 9039 98.7% B 0.539s 9145 99.9% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.051s 9043 98.8% A 0.081s 8771 95.8% A 0.112s 8400 91.8% A 0.142s 7929 86.6% A 0.173s 7342 80.2% A 0.204s 6642 72.6% A 0.234s 5818 63.6% A 0.264s 4886 53.4% A 0.295s 3955 43.2% A 0.326s 3089 33.7% A 0.356s 2290 25.0% A 0.387s 1636 17.9% A 0.417s 1080 11.8% A 0.448s 632 6.9% A 0.478s 316 3.5% A 0.509s 99 1.1% A 0.539s 8 0.1% B 0.020s 9147 99.9% B 0.051s 9023 98.6% B 0.081s 8781 95.9% B 0.111s 8434 92.1% B 0.141s 7968 87.0% B 0.172s 7377 80.6% B 0.203s 6687 73.1% B 0.233s 5893 64.4% B 0.264s 4952 54.1% B 0.294s 4023 43.9% B 0.325s 3136 34.3% B 0.355s 2367 25.9% B 0.386s 1684 18.4% B 0.416s 1118 12.2% B 0.447s 675 7.4% B 0.477s 340 3.7% B 0.508s 122 1.3% B 0.538s 11 0.1% B 0.569s 2 0.0% A -1 -0.0mm 15 N F R | B 2 0.1mm 15 N F R