STH Recent Preflight: 61097
Executing preflight for 61097 at Wed Feb 25 18:19:10 SAST 2026.
Log can be found in /atlas/obs/03/61097/preflight.dat.
Setting donefile '/atlas/obs/03/61097/preflight_complete.20260225161910.25684' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260225161910.25684.
Wed Feb 25 18:19:10 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Wed Feb 25 18:19:10 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [56abf70f-c13b-42bd-b037-c0316e064672;1800]
Wed Feb 25 18:19:10 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Wed Feb 25 18:19:11 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Wed Feb 25 18:19:11 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Wed Feb 25 18:19:11 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Wed Feb 25 18:19:11 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1772036347
OK
Wed Feb 25 18:19:11 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Wed Feb 25 18:19:11 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 Feb 25 18:19:13 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 Feb 25 18:19:13 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Wed Feb 25 18:19:13 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Wed Feb 25 16:19:13 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 553 1024 377 1.060 -0.057 0.041
-metbox2.sth.atl .PPS. 1 u 370 1024 377 0.344 -0.103 0.021
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+zibbi.ngei.csir 155.232.19.6 2 u 203 1024 377 23.269 0.087 0.115
-ntp.as3741.net 146.64.8.7 2 u 664 1024 377 22.904 -0.154 0.087
+ntp2.as3741.net 155.232.19.6 2 u 806 1024 377 7.233 -0.025 0.185
-ntp2.inx.net.za 196.21.187.2 2 u 605 1024 377 7.347 -0.066 0.643
-102.222.100.153 155.232.19.6 2 u 913 1024 377 7.816 1.024 0.763
-ntp5.inx.net.za 183.3.52.101 2 u 440 1024 377 7.878 -0.102 0.078
-flipping.cloudh 80.72.67.48 3 u 214 1024 377 8.094 0.061 0.062
102.216.37.99 ( 210.182.58.253 2 u 23d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 531 1024 377 22.774 -0.121 0.292
Wed Feb 25 18:19:16 SAST 2026 [elapsed=6 sec] DISKS
200GB available in /atlas/obs...OK (6178GB)
200GB available in /atlas/red...OK (9026GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.4T 5.9T 43% /
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 38% /
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 4.8T 8.7T 36% /
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 734G 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
Wed Feb 25 18:19:16 SAST 2026 [elapsed=6 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 Feb 25 18:19:16 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Wed Feb 25 18:19:16 SAST 2026 [elapsed=6 sec] SERVICES2
Wed Feb 25 18:19:16 SAST 2026 [elapsed=6 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Wed Feb 25 18:19:20 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= 916kB time=00:00:29.31 bitrate= 256.0kbits/s speed=1.46e+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 Feb 25 18:22:37 SAST 2026 [elapsed=207 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: 59.93 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Wed Feb 25 18:23:36 SAST 2026 [elapsed=266 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Wed Feb 25 18:23:57 SAST 2026 [elapsed=287 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Wed Feb 25 18:23:57 SAST 2026 [elapsed=287 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (3 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.3C)
Checking CCD plane: Z0=+1762.00 DZDX=-898.00 DZDY=+3593.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Wed Feb 25 18:23:57 SAST 2026 [elapsed=287 sec] WEATHER
status weather: clear 19.2C 38% 26/34kph@298 DP12.4C/-97C/d IDLE
...OK
Wed Feb 25 18:23:58 SAST 2026 [elapsed=288 sec] MET
status...OK
met: c=N o=Y Ro1d Co1d Wo3d Ho11h To57d Do2d IDLE
Wed Feb 25 18:23:58 SAST 2026 [elapsed=288 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Wed Feb 25 18:24:00 SAST 2026 [elapsed=290 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 88.85 -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 -1 0.0%
A 2 0.1mm 15 N F R | B -1 -0.0mm 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 110 1.2%
A 0.081s 393 4.3%
A 0.111s 733 8.0%
A 0.142s 1190 13.0%
A 0.172s 1784 19.5%
A 0.203s 2465 26.9%
A 0.233s 3260 35.6%
A 0.264s 4194 45.8%
A 0.294s 5143 56.2%
A 0.324s 6019 65.8%
A 0.355s 6803 74.3%
A 0.385s 7457 81.5%
A 0.415s 8017 87.6%
A 0.446s 8477 92.6%
A 0.476s 8809 96.2%
A 0.507s 9035 98.7%
A 0.537s 9154 100.0%
B 0.020s 1 0.0%
B 0.051s 91 1.0%
B 0.081s 385 4.2%
B 0.111s 725 7.9%
B 0.142s 1198 13.1%
B 0.172s 1778 19.4%
B 0.203s 2465 26.9%
B 0.233s 3258 35.6%
B 0.264s 4197 45.8%
B 0.294s 5132 56.1%
B 0.324s 5993 65.5%
B 0.354s 6796 74.2%
B 0.385s 7456 81.5%
B 0.415s 8027 87.7%
B 0.445s 8466 92.5%
B 0.476s 8806 96.2%
B 0.506s 9034 98.7%
B 0.537s 9146 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.051s 9055 98.9%
A 0.081s 8760 95.7%
A 0.111s 8402 91.8%
A 0.142s 7951 86.9%
A 0.172s 7351 80.3%
A 0.203s 6668 72.8%
A 0.233s 5870 64.1%
A 0.263s 4922 53.8%
A 0.294s 3986 43.5%
A 0.324s 3138 34.3%
A 0.354s 2328 25.4%
A 0.385s 1671 18.3%
A 0.415s 1115 12.2%
A 0.446s 672 7.3%
A 0.476s 338 3.7%
A 0.506s 118 1.3%
A 0.537s 8 0.1%
B 0.020s 9146 99.9%
B 0.050s 9033 98.7%
B 0.081s 8771 95.8%
B 0.111s 8424 92.0%
B 0.141s 7956 86.9%
B 0.172s 7380 80.6%
B 0.202s 6694 73.1%
B 0.232s 5896 64.4%
B 0.263s 4984 54.4%
B 0.293s 4021 43.9%
B 0.324s 3137 34.3%
B 0.354s 2361 25.8%
B 0.384s 1694 18.5%
B 0.415s 1123 12.3%
B 0.445s 685 7.5%
B 0.476s 346 3.8%
B 0.506s 121 1.3%
B 0.536s 12 0.1%
B 0.567s -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 0.537 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 0.0 percent in 0.567 seconds.
Problems: 0
---------------------------------------------------
Attempting audio conversion ... size= 226kB time=00:00:07.23 bitrate= 256.1kbits/s speed= 986x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9245 IDLE
Wed Feb 25 18:24:43 SAST 2026 [elapsed=333 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
taking preflight exposures:
acam...OK
acam image:
125M Feb 25 18:25 /atlas/obs/03a/61097/03a61097e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Wed Feb 25 18:25:05 SAST 2026 [elapsed=355 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (18 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Wed Feb 25 18:25:05 SAST 2026 [elapsed=355 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61096.68409813|info|galildriver|using focus model: foc=9187+(4.30)*20.2+(-0.40)*60.2=9249.8
61096.68410338|info|galildriver|o 2 IN | cass: 3048391 15.24 mm b=23 move=NO | arm: 408793 475.90 mm b=03 move=OK | foc: 54008545 9246 um b=8f M [focus]
61096.68411399|info|galildriver|o 2 IN | cass: 3048391 15.24 mm b=23 move=NO | arm: 408793 475.90 mm b=03 move=OK | foc: 54008619 9246 um b=2f [cmd]
bestfocus for o...OK
Wed Feb 25 18:25:08 SAST 2026 [elapsed=358 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Wed Feb 25 18:25:38 SAST 2026 [elapsed=388 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 Feb 25 18:25:39 SAST 2026 [elapsed=389 sec] NOTICES: det_dzdx=-898 is outside range +-250 from -558; det_dzdy=3593 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 Feb 25 18:25:39 SAST 2026 [elapsed=389 sec] Happy observing!
Wed Feb 25 18:25:39 SAST 2026 [elapsed=389 sec] Preflight took 389 seconds to complete.
Wed Feb 25 18:25:39 SAST 2026 [elapsed=389 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 116 1.3% A 0.081s 382 4.2% A 0.111s 718 7.8% A 0.141s 1181 12.9% A 0.171s 1759 19.2% A 0.202s 2441 26.7% A 0.232s 3238 35.4% A 0.262s 4144 45.3% A 0.293s 5078 55.5% A 0.323s 5962 65.1% A 0.353s 6757 73.8% A 0.383s 7411 81.0% A 0.413s 7991 87.3% A 0.444s 8447 92.3% A 0.474s 8778 95.9% A 0.504s 9024 98.6% A 0.534s 9138 99.8% A 0.564s 9152 100.0% B 0.020s 2 0.0% B 0.050s 120 1.3% B 0.080s 389 4.2% B 0.111s 742 8.1% B 0.141s 1220 13.3% B 0.171s 1794 19.6% B 0.202s 2491 27.2% B 0.232s 3297 36.0% B 0.262s 4198 45.9% B 0.293s 5133 56.1% B 0.323s 6016 65.7% B 0.353s 6795 74.2% B 0.383s 7460 81.5% B 0.414s 8017 87.6% B 0.444s 8468 92.5% B 0.474s 8805 96.2% B 0.504s 9028 98.6% B 0.534s 9140 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9151 100.0% A 0.050s 9039 98.7% A 0.081s 8769 95.8% A 0.111s 8412 91.9% A 0.141s 7944 86.8% A 0.171s 7361 80.4% A 0.202s 6665 72.8% A 0.232s 5871 64.1% A 0.262s 4947 54.0% A 0.292s 4010 43.8% A 0.323s 3140 34.3% A 0.353s 2359 25.8% A 0.383s 1714 18.7% A 0.413s 1144 12.5% A 0.444s 693 7.6% A 0.474s 359 3.9% A 0.504s 125 1.4% A 0.534s 14 0.2% A 0.565s 2 0.0% B 0.020s 9142 99.9% B 0.050s 9012 98.4% B 0.081s 8762 95.7% B 0.111s 8409 91.9% B 0.141s 7936 86.7% B 0.171s 7360 80.4% B 0.202s 6665 72.8% B 0.232s 5893 64.4% B 0.262s 4951 54.1% B 0.292s 4055 44.3% B 0.323s 3165 34.6% B 0.353s 2391 26.1% B 0.383s 1701 18.6% B 0.413s 1148 12.5% B 0.443s 699 7.6% B 0.474s 356 3.9% B 0.504s 133 1.5% B 0.534s 14 0.2% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R