STH Recent Preflight: 61162
Executing preflight for 61162 at Fri May 1 17:00:45 SAST 2026.
Log can be found in /atlas/obs/03/61162/preflight.dat.
Setting donefile '/atlas/obs/03/61162/preflight_complete.20260501150045.11042' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260501150045.11042.
Fri May 1 17:00:45 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Fri May 1 17:00:45 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [b880eea4-c3ef-4935-856c-ce76d8df04e3;1800]
Fri May 1 17:00:45 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Fri May 1 17:00:46 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Fri May 1 17:00:46 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Fri May 1 17:00:46 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Fri May 1 17:00:46 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1777647637
OK
Fri May 1 17:00:46 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Fri May 1 17:00:46 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
Fri May 1 17:00:47 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
Fri May 1 17:00:48 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Fri May 1 17:00:48 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Fri May 1 15:00:48 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 157 1024 377 1.066 0.095 1.165
+metbox2.sth.atl .PPS. 1 u 90 1024 377 0.280 0.033 0.112
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 708 1024 377 24.299 -0.091 0.443
+ntp.as3741.net 146.64.58.41 2 u 613 1024 377 22.813 0.001 0.239
+ntp2.as3741.net 155.232.19.7 2 u 601 1024 377 7.242 0.041 0.144
+ntp2.inx.net.za 183.3.52.101 2 u 692 1024 377 7.293 0.131 0.172
102.222.100.153 196.21.187.2 2 u 50h 1024 0 7.937 0.836 0.000
-ntp5.inx.net.za 183.3.52.101 2 u 371 1024 377 7.840 0.241 0.165
+flipping.cloudh 80.72.67.48 3 u 330 1024 377 8.145 0.158 0.324
102.216.37.99 ( 210.182.58.253 2 u 88d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 183.3.52.101 2 u 633 1024 377 22.748 -0.239 0.368
Fri May 1 17:00:50 SAST 2026 [elapsed=5 sec] DISKS
200GB available in /atlas/obs...OK (6132GB)
200GB available in /atlas/red...OK (9364GB)
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/loop2 106M 106M 0 100% /snap/core/17284
admin:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 117G 21G 91G 19% /
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
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 4.5T 9.0T 34% /
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 1.7T 12T 13% /
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 737G 13T 6% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Fri May 1 17:00:51 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
Fri May 1 17:00:51 SAST 2026 [elapsed=6 sec] Disabling mount tracking.
Fri May 1 17:00:51 SAST 2026 [elapsed=6 sec] SERVICES2
Fri May 1 17:00:55 SAST 2026 [elapsed=10 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Fri May 1 17:00:59 SAST 2026 [elapsed=14 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= 928kB time=00:00:29.69 bitrate= 256.0kbits/s speed=1.48e+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
Fri May 1 17:03:33 SAST 2026 [elapsed=168 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: 104.17 -29.49, az/alt=324.66 +86.49 idle(e) IDLE
Fri May 1 17:04:31 SAST 2026 [elapsed=226 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Fri May 1 17:04:52 SAST 2026 [elapsed=247 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=45.9 IDLE
Fri May 1 17:04:52 SAST 2026 [elapsed=247 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (1 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.9C)
Checking CCD plane: Z0=+1704.00 DZDX=-891.00 DZDY=+2229.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Fri May 1 17:04:52 SAST 2026 [elapsed=247 sec] WEATHER
status weather: C 12.8C 36% 18/33kph@356 DP12.9C/-15C/d IDLE
...OK
Fri May 1 17:04:53 SAST 2026 [elapsed=248 sec] MET
status...OK
met: c=N o=Y Ro4d Co21h Wo4d Ho16h To34d Do1d IDLE
Fri May 1 17:04:53 SAST 2026 [elapsed=248 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Fri May 1 17:04:53 SAST 2026 [elapsed=248 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 133.09 -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 0 0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 8 0.1%
A 0.050s 109 1.2%
A 0.081s 390 4.3%
A 0.111s 732 8.0%
A 0.141s 1190 13.0%
A 0.172s 1782 19.5%
A 0.202s 2465 26.9%
A 0.232s 3260 35.6%
A 0.263s 4162 45.5%
A 0.293s 5115 55.9%
A 0.323s 5991 65.4%
A 0.353s 6780 74.1%
A 0.384s 7438 81.3%
A 0.414s 8000 87.4%
A 0.444s 8467 92.5%
A 0.475s 8791 96.0%
A 0.505s 9021 98.5%
A 0.535s 9153 100.0%
B 0.020s 0 0.0%
B 0.051s 98 1.1%
B 0.081s 383 4.2%
B 0.111s 726 7.9%
B 0.141s 1197 13.1%
B 0.172s 1776 19.4%
B 0.202s 2465 26.9%
B 0.232s 3256 35.6%
B 0.263s 4166 45.5%
B 0.293s 5103 55.7%
B 0.323s 5992 65.5%
B 0.353s 6775 74.0%
B 0.384s 7434 81.2%
B 0.414s 8010 87.5%
B 0.444s 8455 92.4%
B 0.475s 8799 96.1%
B 0.505s 9030 98.6%
B 0.535s 9144 99.9%
B 0.566s 9162 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.050s 9064 99.0%
A 0.081s 8773 95.8%
A 0.111s 8416 91.9%
A 0.141s 7968 87.0%
A 0.172s 7373 80.5%
A 0.202s 6693 73.1%
A 0.232s 5896 64.4%
A 0.263s 4982 54.4%
A 0.293s 4045 44.2%
A 0.323s 3166 34.6%
A 0.353s 2377 26.0%
A 0.384s 1707 18.6%
A 0.414s 1147 12.5%
A 0.444s 700 7.6%
A 0.474s 355 3.9%
A 0.505s 128 1.4%
A 0.535s 11 0.1%
A 0.565s -8 0.0%
B 0.020s 9145 99.9%
B 0.050s 9027 98.6%
B 0.081s 8764 95.7%
B 0.111s 8412 91.9%
B 0.141s 7941 86.7%
B 0.171s 7358 80.4%
B 0.202s 6672 72.9%
B 0.232s 5897 64.4%
B 0.262s 4984 54.4%
B 0.292s 4051 44.3%
B 0.323s 3163 34.6%
B 0.353s 2383 26.0%
B 0.383s 1713 18.7%
B 0.413s 1140 12.5%
B 0.444s 697 7.6%
B 0.474s 356 3.9%
B 0.504s 128 1.4%
B 0.535s 13 0.1%
B 0.565s -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 0.535 seconds.
Shutter B opened to 100.0 percent in 0.566 seconds.
Shutter A closed to 0.0 percent in 0.565 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=1.09e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9222 IDLE
Fri May 1 17:05:52 SAST 2026 [elapsed=307 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=45.9 IDLE
taking preflight exposures:
acam...OK
acam image:
126M May 1 17:06 /atlas/obs/03a/61162/03a61162e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Fri May 1 17:06:15 SAST 2026 [elapsed=330 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (58 seconds old)
OTA humidity level...OK (7%)
Dome humidity exists...OK
Dome humidity is current... OK
Fri May 1 17:06:15 SAST 2026 [elapsed=330 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61161.62934879|info|galildriver|using focus model: foc=9187+(4.30)*14.8+(-0.40)*60.2=9226.5
61161.62935459|info|galildriver|o 2 IN | cass: 3048211 15.24 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54003942 9223 um b=8f M [focus]
61161.62936520|info|galildriver|o 2 IN | cass: 3048212 15.24 mm b=23 move=NO | arm: 408733 475.83 mm b=03 move=OK | foc: 54004004 9223 um b=2f [cmd]
bestfocus for o...OK
Fri May 1 17:06:17 SAST 2026 [elapsed=332 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Fri May 1 17:06:47 SAST 2026 [elapsed=362 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
Fri May 1 17:06:48 SAST 2026 [elapsed=363 sec] NOTICES: det_dzdx=-891 is outside range +-250 from -558; det_dzdy=2229 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Fri May 1 17:06:48 SAST 2026 [elapsed=363 sec] Happy observing!
Fri May 1 17:06:48 SAST 2026 [elapsed=363 sec] Preflight took 363 seconds to complete.
Fri May 1 17:06:48 SAST 2026 [elapsed=363 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 0.050s 115 1.3% A 0.081s 375 4.1% A 0.111s 723 7.9% A 0.141s 1180 12.9% A 0.171s 1761 19.2% A 0.202s 2443 26.7% A 0.232s 3239 35.4% A 0.262s 4144 45.3% A 0.292s 5074 55.4% A 0.323s 5969 65.2% A 0.353s 6752 73.8% A 0.383s 7413 81.0% A 0.413s 7990 87.3% A 0.444s 8444 92.2% A 0.474s 8782 95.9% A 0.504s 9022 98.6% A 0.534s 9135 99.8% A 0.565s 9153 100.0% B 0.020s 2 0.0% B 0.051s 112 1.2% B 0.081s 380 4.2% B 0.111s 730 8.0% B 0.141s 1202 13.1% B 0.172s 1775 19.4% B 0.202s 2466 26.9% B 0.232s 3243 35.4% B 0.262s 4139 45.2% B 0.293s 5103 55.7% B 0.323s 5961 65.1% B 0.353s 6749 73.7% B 0.383s 7421 81.1% B 0.414s 7985 87.2% B 0.444s 8443 92.2% B 0.474s 8786 96.0% B 0.504s 9016 98.5% B 0.534s 9137 99.8% B 0.565s 9155 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9057 98.9% A 0.081s 8788 96.0% A 0.111s 8432 92.1% A 0.141s 7975 87.1% A 0.172s 7400 80.8% A 0.202s 6715 73.4% A 0.232s 5922 64.7% A 0.263s 5011 54.7% A 0.293s 4069 44.5% A 0.323s 3193 34.9% A 0.353s 2409 26.3% A 0.383s 1731 18.9% A 0.414s 1164 12.7% A 0.444s 707 7.7% A 0.474s 368 4.0% A 0.504s 131 1.4% A 0.535s 15 0.2% A 0.565s 2 0.0% B 0.020s 9147 99.9% B 0.050s 9025 98.6% B 0.081s 8781 95.9% B 0.111s 8434 92.1% B 0.141s 7969 87.1% B 0.172s 7399 80.8% B 0.202s 6712 73.3% B 0.232s 5918 64.6% B 0.262s 5012 54.8% B 0.293s 4084 44.6% B 0.323s 3192 34.9% B 0.353s 2415 26.4% B 0.384s 1723 18.8% B 0.414s 1165 12.7% B 0.444s 712 7.8% B 0.474s 368 4.0% B 0.505s 140 1.5% B 0.535s 16 0.2% B 0.565s 1 0.0% A 0 0.0mm 15 N F R | B 1 0.0mm 15 N F R