STH Recent Preflight: 61095
Executing preflight for 61095 at Mon Feb 23 18:21:25 SAST 2026.
Log can be found in /atlas/obs/03/61095/preflight.dat.
Setting donefile '/atlas/obs/03/61095/preflight_complete.20260223162125.25684' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260223162125.25684.
Mon Feb 23 18:21:25 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Mon Feb 23 18:21:25 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [e5a5cfd4-54fd-47de-9645-2fbfc3b7b016;1800]
Mon Feb 23 18:21:25 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Mon Feb 23 18:21:25 SAST 2026 [elapsed=0 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Mon Feb 23 18:21:26 SAST 2026 [elapsed=0 sec] auxcam is disabled.
Mon Feb 23 18:21:26 SAST 2026 [elapsed=0 sec] Skipping auxcam.
error: unknown module: vent
Mon Feb 23 18:21:26 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1771863684
OK
Mon Feb 23 18:21:26 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Mon Feb 23 18:21:26 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
Mon Feb 23 18:21:27 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
Mon Feb 23 18:21:28 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Mon Feb 23 18:21:28 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Mon Feb 23 16:21:28 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 526 512 377 1.048 0.047 0.042
*metbox2.sth.atl .PPS. 1 u 394 512 377 0.275 -0.001 0.039
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.7 2 u 349 512 377 23.244 0.343 0.525
-ntp.as3741.net 146.64.8.7 2 u 227 512 377 22.702 -0.027 0.070
-ntp2.as3741.net 155.232.19.6 2 u 469 512 377 7.158 -0.029 0.037
-196.10.54.57 183.3.52.101 2 u 296 512 377 7.256 -0.118 0.128
-102.222.100.153 196.21.187.2 2 u 407 512 377 7.803 0.035 0.190
-196.10.54.58 183.3.52.101 2 u 355 512 377 7.724 -0.156 0.824
+flipping.cloudh 80.72.67.48 3 u 417 512 377 8.044 -0.012 0.129
102.216.37.99 ( 210.182.58.253 2 u 21d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 294 512 377 22.711 -1.290 0.066
Mon Feb 23 18:21:32 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (6123GB)
200GB available in /atlas/red...OK (8918GB)
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 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 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
Mon Feb 23 18:21:32 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
Mon Feb 23 18:21:32 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Mon Feb 23 18:21:32 SAST 2026 [elapsed=7 sec] SERVICES2
Mon Feb 23 18:21:32 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Mon Feb 23 18:21:36 SAST 2026 [elapsed=11 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
Mon Feb 23 18:24:53 SAST 2026 [elapsed=208 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: 58.52 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Mon Feb 23 18:25:52 SAST 2026 [elapsed=267 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Mon Feb 23 18:26:13 SAST 2026 [elapsed=288 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=38.9 IDLE
Mon Feb 23 18:26:13 SAST 2026 [elapsed=288 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (9 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.6C)
Checking CCD plane: Z0=+1737.00 DZDX=-889.00 DZDY=+3105.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Mon Feb 23 18:26:13 SAST 2026 [elapsed=288 sec] WEATHER
status weather: C+ H+ 13.5C 91% 20/39kph@214 DP1.1C/-14C/d IDLE
...OK
Mon Feb 23 18:26:14 SAST 2026 [elapsed=289 sec] MET
status...OK
met: c=Y o=N Ro1h Cx1h Wo1d Hx1h To55d Do3h wait CH IDLE
Mon Feb 23 18:26:14 SAST 2026 [elapsed=289 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Mon Feb 23 18:26:14 SAST 2026 [elapsed=289 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 87.45 -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 -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 102 1.1%
A 0.081s 381 4.2%
A 0.111s 734 8.0%
A 0.141s 1191 13.0%
A 0.172s 1782 19.5%
A 0.202s 2465 26.9%
A 0.232s 3259 35.6%
A 0.263s 4162 45.5%
A 0.293s 5114 55.9%
A 0.323s 5990 65.4%
A 0.354s 6779 74.1%
A 0.384s 7440 81.3%
A 0.414s 7984 87.2%
A 0.444s 8466 92.5%
A 0.474s 8793 96.1%
A 0.505s 9020 98.5%
A 0.535s 9150 100.0%
B 0.020s 2 0.0%
B 0.050s 106 1.2%
B 0.081s 394 4.3%
B 0.111s 738 8.1%
B 0.141s 1214 13.3%
B 0.172s 1797 19.6%
B 0.202s 2490 27.2%
B 0.233s 3283 35.9%
B 0.263s 4198 45.9%
B 0.293s 5131 56.1%
B 0.323s 6021 65.8%
B 0.354s 6796 74.2%
B 0.384s 7456 81.5%
B 0.414s 8027 87.7%
B 0.445s 8467 92.5%
B 0.475s 8816 96.3%
B 0.505s 9041 98.8%
B 0.536s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9149 99.9%
A 0.050s 9056 98.9%
A 0.081s 8762 95.7%
A 0.111s 8402 91.8%
A 0.141s 7950 86.8%
A 0.172s 7353 80.3%
A 0.202s 6670 72.9%
A 0.232s 5869 64.1%
A 0.262s 4953 54.1%
A 0.292s 4045 44.2%
A 0.323s 3138 34.3%
A 0.353s 2352 25.7%
A 0.383s 1689 18.5%
A 0.413s 1147 12.5%
A 0.443s 698 7.6%
A 0.474s 355 3.9%
A 0.504s 128 1.4%
A 0.534s 11 0.1%
A 0.564s -8 0.0%
B 0.020s 9144 99.9%
B 0.050s 9033 98.7%
B 0.081s 8772 95.8%
B 0.111s 8425 92.0%
B 0.141s 7957 86.9%
B 0.171s 7379 80.6%
B 0.201s 6695 73.1%
B 0.232s 5896 64.4%
B 0.262s 4984 54.4%
B 0.292s 4050 44.2%
B 0.323s 3164 34.6%
B 0.353s 2384 26.0%
B 0.383s 1713 18.7%
B 0.413s 1140 12.5%
B 0.444s 696 7.6%
B 0.474s 355 3.9%
B 0.504s 127 1.4%
B 0.534s 11 0.1%
B 0.565s -6 0.0%
A 1 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 0.536 seconds.
Shutter A closed to 0.0 percent in 0.564 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=1.03e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9231 IDLE
Mon Feb 23 18:27:15 SAST 2026 [elapsed=350 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:
122M Feb 23 18:27 /atlas/obs/03a/61095/03a61095e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Mon Feb 23 18:27:37 SAST 2026 [elapsed=372 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (80 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Mon Feb 23 18:27:37 SAST 2026 [elapsed=372 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61094.68585572|info|galildriver|using focus model: foc=9187+(4.30)*16.9+(-0.40)*60.2=9235.6
61094.68586096|info|galildriver|o 2 IN | cass: 3051043 15.26 mm b=23 move=NO | arm: 408793 475.90 mm b=03 move=OK | foc: 54005730 9232 um b=8f M [focus]
61094.68587156|info|galildriver|o 2 IN | cass: 3051042 15.26 mm b=23 move=NO | arm: 408793 475.90 mm b=03 move=OK | foc: 54005791 9232 um b=2f [cmd]
bestfocus for o...OK
Mon Feb 23 18:27:40 SAST 2026 [elapsed=375 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Mon Feb 23 18:28:10 SAST 2026 [elapsed=405 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
Mon Feb 23 18:28:11 SAST 2026 [elapsed=406 sec] NOTICES: det_dzdx=-889 is outside range +-250 from -558; det_dzdy=3105 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Mon Feb 23 18:28:11 SAST 2026 [elapsed=406 sec] Happy observing!
Mon Feb 23 18:28:11 SAST 2026 [elapsed=406 sec] Preflight took 406 seconds to complete.
Mon Feb 23 18:28:11 SAST 2026 [elapsed=406 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 370 4.0% A 0.111s 717 7.8% A 0.141s 1181 12.9% A 0.171s 1759 19.2% A 0.202s 2442 26.7% A 0.232s 3238 35.4% A 0.262s 4143 45.3% A 0.292s 5077 55.5% A 0.322s 5963 65.1% A 0.353s 6757 73.8% A 0.383s 7412 81.0% A 0.413s 7992 87.3% A 0.443s 8434 92.1% A 0.473s 8770 95.8% A 0.504s 9018 98.5% A 0.534s 9137 99.8% A 0.564s 9153 100.0% B 0.020s 2 0.0% B 0.050s 121 1.3% B 0.081s 388 4.2% B 0.111s 741 8.1% B 0.141s 1220 13.3% B 0.172s 1794 19.6% B 0.202s 2491 27.2% B 0.232s 3298 36.0% B 0.262s 4197 45.8% B 0.292s 5104 55.8% B 0.323s 5988 65.4% B 0.353s 6770 74.0% B 0.383s 7440 81.3% B 0.413s 8001 87.4% B 0.443s 8455 92.4% B 0.474s 8795 96.1% B 0.504s 9023 98.6% B 0.534s 9139 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9047 98.8% A 0.081s 8780 95.9% A 0.111s 8438 92.2% A 0.141s 7961 87.0% A 0.171s 7402 80.9% A 0.201s 6712 73.3% A 0.231s 5927 64.7% A 0.262s 5010 54.7% A 0.292s 4069 44.5% A 0.323s 3197 34.9% A 0.353s 2383 26.0% A 0.384s 1714 18.7% A 0.414s 1143 12.5% A 0.445s 680 7.4% A 0.475s 349 3.8% A 0.506s 117 1.3% A 0.536s 14 0.2% A 0.567s 3 0.0% B 0.020s 9145 99.9% B 0.051s 9018 98.5% B 0.081s 8773 95.8% B 0.111s 8422 92.0% B 0.142s 7952 86.9% B 0.172s 7358 80.4% B 0.203s 6664 72.8% B 0.233s 5866 64.1% B 0.263s 4953 54.1% B 0.294s 4025 44.0% B 0.324s 3137 34.3% B 0.355s 2366 25.8% B 0.385s 1663 18.2% B 0.416s 1117 12.2% B 0.446s 673 7.4% B 0.477s 339 3.7% B 0.507s 115 1.3% B 0.538s 9 0.1% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R