STH Recent Preflight: 61237
Executing preflight for 61237 at Wed Jul 15 16:52:16 SAST 2026.
Log can be found in /atlas/obs/03/61237/preflight.dat.
Setting donefile '/atlas/obs/03/61237/preflight_complete.20260715145216.2231' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260715145216.2231.
Wed Jul 15 16:52:16 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Jul 15 16:52:16 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [f14ac421-df25-4520-8657-231cc0f572a8;1800]
Wed Jul 15 16:52:16 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Jul 15 16:52:17 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Jul 15 16:52:17 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Jul 15 16:52:17 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Jul 15 16:52:17 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1784127133
OK
Wed Jul 15 16:52:17 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Jul 15 16:52:17 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
Wed Jul 15 16:52:19 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
Wed Jul 15 16:52:19 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Jul 15 16:52:19 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Wed Jul 15 14:52:19 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 533 1024 277 1.055 0.015 0.050
+metbox2.sth.atl .PPS. 1 u 442 1024 377 0.301 0.005 0.033
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 1002 1024 377 24.589 0.489 0.335
-ntp.as3741.net 210.182.58.253 2 u 212 1024 377 24.149 0.008 0.121
-ntp2.as3741.net 155.232.19.7 2 u 126 1024 377 8.551 -0.108 0.059
-ntp2.inx.net.za 183.3.52.101 2 u 211 1024 377 8.578 0.115 0.313
-ntp5.inx.net.za 183.3.52.101 2 u 534 1024 377 8.788 -0.139 0.147
#102.222.156.151 196.21.187.2 2 u 283 1024 77 26.030 -0.752 1.301
+ntp2.nog.net.za 80.72.67.48 3 u 573 1024 377 8.848 0.078 0.128
-139.84.231.68 ( 196.21.187.2 2 u 1028 1024 377 24.147 -0.005 0.146
-ntp8.inx.net.za 196.21.187.2 2 u 29 1024 377 18.168 0.456 0.052
Wed Jul 15 16:52:24 SAST 2026 [elapsed=8 sec] DISKS
200GB available in /atlas/obs...OK (5868GB)
200GB available in /atlas/red...OK (8832GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.7T 5.6T 46% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 22G 89G 20% /
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
tcs:/dev/mapper/ubuntu--vg-ubuntu--lv 98G 38G 56G 41% /
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 5.0T 8.5T 37% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.9T 12T 15% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 736G 13T 6% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17292
Wed Jul 15 16:52:24 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
Wed Jul 15 16:52:24 SAST 2026 [elapsed=8 sec] Disabling mount tracking.
Wed Jul 15 16:52:24 SAST 2026 [elapsed=8 sec] SERVICES2
Wed Jul 15 16:52:26 SAST 2026 [elapsed=10 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Jul 15 16:52:31 SAST 2026 [elapsed=15 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=1.47e+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
Wed Jul 15 16:55:46 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: 176.29 -29.49, az/alt=324.77 +86.49 idle(e) IDLE
Wed Jul 15 16:57:18 SAST 2026 [elapsed=302 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Jul 15 16:57:37 SAST 2026 [elapsed=321 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Wed Jul 15 16:57:37 SAST 2026 [elapsed=321 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (2 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.3C)
Checking CCD plane: Z0=+1719.00 DZDX=-873.00 DZDY=+2618.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Jul 15 16:57:37 SAST 2026 [elapsed=321 sec] WEATHER
status weather: clear 12.4C 43% 11/16kph@283 DP11.0C/-48C/d IDLE
...OK
Wed Jul 15 16:57:37 SAST 2026 [elapsed=321 sec] MET
status...OK
met: c=N o=Y Ro16d Co2d Wo16d Ho2d To27d Do1d IDLE
Wed Jul 15 16:57:37 SAST 2026 [elapsed=321 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Jul 15 16:57:37 SAST 2026 [elapsed=321 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 205.20 -14.64, 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 -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 8 0.1%
A 0.051s 107 1.2%
A 0.081s 392 4.3%
A 0.111s 734 8.0%
A 0.141s 1189 13.0%
A 0.172s 1783 19.5%
A 0.202s 2467 26.9%
A 0.232s 3260 35.6%
A 0.262s 4164 45.5%
A 0.293s 5113 55.9%
A 0.323s 5989 65.4%
A 0.353s 6782 74.1%
A 0.383s 7439 81.3%
A 0.414s 7999 87.4%
A 0.444s 8466 92.5%
A 0.474s 8793 96.1%
A 0.504s 9021 98.5%
A 0.535s 9151 100.0%
B 0.020s 0 0.0%
B 0.050s 89 1.0%
B 0.081s 383 4.2%
B 0.111s 725 7.9%
B 0.141s 1197 13.1%
B 0.172s 1777 19.4%
B 0.202s 2463 26.9%
B 0.232s 3258 35.6%
B 0.263s 4166 45.5%
B 0.293s 5102 55.7%
B 0.323s 5991 65.4%
B 0.353s 6774 74.0%
B 0.384s 7436 81.2%
B 0.414s 8009 87.5%
B 0.444s 8456 92.4%
B 0.474s 8798 96.1%
B 0.505s 9028 98.6%
B 0.535s 9145 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9058 99.0%
A 0.081s 8761 95.7%
A 0.111s 8401 91.8%
A 0.141s 7952 86.9%
A 0.172s 7353 80.3%
A 0.202s 6670 72.9%
A 0.232s 5870 64.1%
A 0.263s 4952 54.1%
A 0.293s 4014 43.8%
A 0.323s 3137 34.3%
A 0.354s 2353 25.7%
A 0.384s 1689 18.5%
A 0.414s 1131 12.4%
A 0.445s 686 7.5%
A 0.475s 346 3.8%
A 0.505s 122 1.3%
A 0.536s 8 0.1%
B 0.020s 9144 99.9%
B 0.051s 9026 98.6%
B 0.081s 8763 95.7%
B 0.111s 8410 91.9%
B 0.141s 7941 86.7%
B 0.172s 7360 80.4%
B 0.202s 6671 72.9%
B 0.232s 5869 64.1%
B 0.262s 4955 54.1%
B 0.293s 4021 43.9%
B 0.323s 3136 34.3%
B 0.353s 2361 25.8%
B 0.384s 1693 18.5%
B 0.414s 1123 12.3%
B 0.444s 684 7.5%
B 0.475s 346 3.8%
B 0.505s 122 1.3%
B 0.535s 10 0.1%
B 0.565s -6 0.0%
A 0 0.0mm 15 N F R | B -5 -0.2mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.535 seconds.
Shutter B opened to 99.9 percent in 0.535 seconds.
Shutter A closed to 0.1 percent in 0.536 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=1.16e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9235 IDLE
Wed Jul 15 16:58:15 SAST 2026 [elapsed=359 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:
123M Jul 15 16:58 /atlas/obs/03a/61237/03a61237e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Jul 15 16:58:37 SAST 2026 [elapsed=381 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (18 seconds old)
OTA humidity level...OK (16%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Jul 15 16:58:37 SAST 2026 [elapsed=381 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61236.62404884|info|galildriver|using focus model: foc=9187+(4.30)*16.8+(-0.40)*60.2=9235.1
61236.62405351|info|galildriver|o 2 IN | cass: 3044123 15.22 mm b=23 move=NO | arm: 409734 477.00 mm b=23 move=OK | foc: 54006440 9235 um b=0f [cmd]
bestfocus for o...OK
Wed Jul 15 16:58:38 SAST 2026 [elapsed=382 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Jul 15 16:59:04 SAST 2026 [elapsed=408 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
Wed Jul 15 16:59:06 SAST 2026 [elapsed=410 sec] NOTICES: det_dzdx=-873 is outside range +-250 from -558; det_dzdy=2618 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Wed Jul 15 16:59:06 SAST 2026 [elapsed=410 sec] Happy observing!
Wed Jul 15 16:59:06 SAST 2026 [elapsed=410 sec] Preflight took 410 seconds to complete.
Wed Jul 15 16:59:06 SAST 2026 [elapsed=410 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 114 1.2% A 0.081s 397 4.3% A 0.112s 749 8.2% A 0.142s 1215 13.3% A 0.173s 1824 19.9% A 0.203s 2514 27.5% A 0.234s 3322 36.3% A 0.264s 4236 46.3% A 0.295s 5163 56.4% A 0.325s 6079 66.4% A 0.356s 6842 74.7% A 0.386s 7492 81.8% A 0.417s 8056 88.0% A 0.447s 8493 92.8% A 0.478s 8829 96.4% A 0.508s 9048 98.8% A 0.538s 9143 99.9% A 0.568s 9153 100.0% B 0.020s 1 0.0% B 0.051s 110 1.2% B 0.081s 379 4.1% B 0.112s 740 8.1% B 0.142s 1218 13.3% B 0.172s 1793 19.6% B 0.203s 2491 27.2% B 0.233s 3295 36.0% B 0.264s 4198 45.9% B 0.294s 5131 56.1% B 0.324s 6014 65.7% B 0.354s 6797 74.3% B 0.385s 7461 81.5% B 0.415s 8018 87.6% B 0.446s 8481 92.6% B 0.476s 8813 96.3% B 0.506s 9033 98.7% B 0.537s 9143 99.9% B 0.567s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9150 100.0% A 0.050s 9048 98.8% A 0.081s 8777 95.9% A 0.111s 8421 92.0% A 0.141s 7958 86.9% A 0.171s 7380 80.6% A 0.201s 6692 73.1% A 0.232s 5895 64.4% A 0.262s 4981 54.4% A 0.292s 4039 44.1% A 0.322s 3166 34.6% A 0.352s 2387 26.1% A 0.383s 1711 18.7% A 0.413s 1147 12.5% A 0.443s 706 7.7% A 0.473s 368 4.0% A 0.503s 132 1.4% A 0.534s 14 0.2% A 0.564s 1 0.0% B 0.020s 9142 99.9% B 0.050s 9017 98.5% B 0.081s 8770 95.8% B 0.111s 8420 92.0% B 0.141s 7951 86.9% B 0.172s 7378 80.6% B 0.202s 6690 73.1% B 0.232s 5892 64.4% B 0.262s 4978 54.4% B 0.292s 4082 44.6% B 0.323s 3190 34.8% B 0.353s 2417 26.4% B 0.383s 1725 18.8% B 0.413s 1161 12.7% B 0.444s 713 7.8% B 0.474s 364 4.0% B 0.504s 138 1.5% B 0.534s 17 0.2% B 0.564s 0 0.0% A 1 0.0mm 15 N F R | B 0 0.0mm 15 N F R