STH Recent Preflight: 61136
Executing preflight for 61136 at Sun Apr 5 17:29:54 SAST 2026.
Log can be found in /atlas/obs/03/61136/preflight.dat.
Setting donefile '/atlas/obs/03/61136/preflight_complete.20260405152954.15307' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260405152954.15307.
Sun Apr 5 17:29:55 SAST 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Apr 5 17:29:55 SAST 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [a008db07-e285-4b81-b3ea-328c9898d2c2;1800]
Sun Apr 5 17:29:55 SAST 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Sun Apr 5 17:29:59 SAST 2026 [elapsed=4 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Sun Apr 5 17:29:59 SAST 2026 [elapsed=4 sec] auxcam is disabled.
Sun Apr 5 17:29:59 SAST 2026 [elapsed=4 sec] Skipping auxcam.
error: unknown module: vent
Sun Apr 5 17:29:59 SAST 2026 [elapsed=4 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1775402990
OK
Sun Apr 5 17:29:59 SAST 2026 [elapsed=4 sec] OPSEC
AUTO mode: ...OK
Sun Apr 5 17:29:59 SAST 2026 [elapsed=4 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 Apr 5 17:30:00 SAST 2026 [elapsed=5 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 Apr 5 17:30:01 SAST 2026 [elapsed=6 sec] QUEUE
0 observations queued.
Sun Apr 5 17:30:01 SAST 2026 [elapsed=6 sec] CLOCKS
admin: Sun Apr 5 15:30:01 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 443 1024 377 1.035 -0.057 0.055
+metbox2.sth.atl .PPS. 1 u 185 1024 377 0.323 -0.064 0.067
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.6 2 u 592 1024 377 25.092 0.878 0.455
+ntp.as3741.net 146.64.8.7 2 u 739 1024 377 23.196 0.047 0.375
-ntp2.as3741.net 155.232.19.6 2 u 188 1024 377 7.245 0.314 0.283
-ntp2.inx.net.za 196.21.187.2 2 u 879 1024 377 7.269 0.329 0.277
-102.222.100.153 155.232.19.6 2 u 833 1024 377 7.790 1.011 0.309
-ntp5.inx.net.za 183.3.52.101 2 u 952 1024 377 7.851 0.355 0.044
-flipping.cloudh 80.72.67.48 3 u 760 1024 377 8.203 0.268 0.088
102.216.37.99 ( 210.182.58.253 2 u 62d 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 130 1024 377 23.558 0.923 1.496
Sun Apr 5 17:30:07 SAST 2026 [elapsed=12 sec] DISKS
200GB available in /atlas/obs...OK (6293GB)
200GB available in /atlas/red...OK (8765GB)
Checking disks on admin ... archon ... tcs ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p2 11T 4.3T 6.1T 42% /
admin:/dev/loop1 105M 105M 0 100% /snap/core/17272
admin:/dev/loop2 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 117G 21G 91G 19% /
archon:/dev/sda1 511M 6.6M 505M 2% /boot/efi
archon:/dev/loop2 105M 105M 0 100% /snap/core/17272
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
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 5.0T 8.4T 38% /
proc1:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/md0p1 15T 1.7T 12T 13% /
proc2:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc3:/dev/md0p1 15T 735G 13T 6% /
proc3:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/md0p1 15T 1.1T 13T 8% /
proc4:/dev/loop2 105M 105M 0 100% /snap/core/17272
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
Sun Apr 5 17:30:07 SAST 2026 [elapsed=12 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 Apr 5 17:30:07 SAST 2026 [elapsed=12 sec] Disabling mount tracking.
Sun Apr 5 17:30:08 SAST 2026 [elapsed=13 sec] SERVICES2
Sun Apr 5 17:30:08 SAST 2026 [elapsed=13 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Apr 5 17:30:12 SAST 2026 [elapsed=17 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=1.2e+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/OPEN (0%) IDLE
Sun Apr 5 17:32:51 SAST 2026 [elapsed=176 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: 85.89 -29.49, az/alt=324.69 +86.49 idle(e) IDLE
Sun Apr 5 17:33:50 SAST 2026 [elapsed=235 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Apr 5 17:34:11 SAST 2026 [elapsed=256 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.0 IDLE
Sun Apr 5 17:34:11 SAST 2026 [elapsed=256 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 (-54.5C)
Checking CCD plane: Z0=+1729.00 DZDX=-888.00 DZDY=+2829.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Sun Apr 5 17:34:11 SAST 2026 [elapsed=256 sec] WEATHER
status weather: clear 13.4C 55% 26/31kph@291 DP7.3C/-54C/d IDLE
...OK
Sun Apr 5 17:34:12 SAST 2026 [elapsed=257 sec] MET
status...OK
met: c=N o=Y Ro1d Co1d Wo4d Ho17h To8d Do2d IDLE
Sun Apr 5 17:34:12 SAST 2026 [elapsed=257 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Apr 5 17:34:12 SAST 2026 [elapsed=257 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 114.81 -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 -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 0.051s 109 1.2%
A 0.081s 391 4.3%
A 0.111s 733 8.0%
A 0.141s 1191 13.0%
A 0.172s 1783 19.5%
A 0.202s 2465 26.9%
A 0.232s 3261 35.6%
A 0.263s 4164 45.5%
A 0.293s 5113 55.9%
A 0.323s 5989 65.4%
A 0.354s 6779 74.1%
A 0.384s 7440 81.3%
A 0.414s 8001 87.4%
A 0.445s 8465 92.5%
A 0.475s 8792 96.0%
A 0.505s 9022 98.6%
A 0.535s 9151 100.0%
B 0.020s 0 0.0%
B 0.050s 97 1.1%
B 0.081s 384 4.2%
B 0.111s 726 7.9%
B 0.141s 1198 13.1%
B 0.172s 1776 19.4%
B 0.202s 2464 26.9%
B 0.232s 3257 35.6%
B 0.262s 4166 45.5%
B 0.293s 5074 55.4%
B 0.323s 5989 65.4%
B 0.353s 6774 74.0%
B 0.384s 7437 81.2%
B 0.414s 8010 87.5%
B 0.444s 8456 92.4%
B 0.475s 8799 96.1%
B 0.505s 9030 98.6%
B 0.535s 9144 99.9%
B 0.565s 9160 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9150 100.0%
A 0.051s 9064 99.0%
A 0.081s 8772 95.8%
A 0.111s 8413 91.9%
A 0.141s 7968 87.0%
A 0.172s 7373 80.5%
A 0.202s 6694 73.1%
A 0.232s 5897 64.4%
A 0.262s 4984 54.4%
A 0.293s 4044 44.2%
A 0.323s 3164 34.6%
A 0.353s 2377 26.0%
A 0.383s 1709 18.7%
A 0.414s 1147 12.5%
A 0.444s 698 7.6%
A 0.474s 354 3.9%
A 0.504s 129 1.4%
A 0.535s 13 0.1%
A 0.565s -6 0.0%
B 0.020s 9145 99.9%
B 0.050s 9028 98.6%
B 0.081s 8762 95.7%
B 0.111s 8412 91.9%
B 0.141s 7941 86.7%
B 0.172s 7359 80.4%
B 0.202s 6673 72.9%
B 0.232s 5870 64.1%
B 0.263s 4955 54.1%
B 0.293s 4021 43.9%
B 0.323s 3134 34.2%
B 0.353s 2361 25.8%
B 0.384s 1692 18.5%
B 0.414s 1125 12.3%
B 0.444s 686 7.5%
B 0.475s 345 3.8%
B 0.505s 122 1.3%
B 0.535s 11 0.1%
B 0.566s -5 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 100.0 percent in 0.565 seconds.
Shutter A closed to 0.0 percent in 0.565 seconds.
Shutter B closed to 0.0 percent in 0.566 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=9231 IDLE
Sun Apr 5 17:35:02 SAST 2026 [elapsed=307 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=40.0 IDLE
taking preflight exposures:
acam...OK
acam image:
126M Apr 5 17:35 /atlas/obs/03a/61136/03a61136e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Apr 5 17:35:24 SAST 2026 [elapsed=329 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (7 seconds old)
OTA humidity level...OK (5%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Apr 5 17:35:24 SAST 2026 [elapsed=329 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61135.64959680|info|galildriver|using focus model: foc=9187+(4.30)*16.8+(-0.40)*60.2=9235.1
61135.64960204|info|galildriver|o 2 IN | cass: 3049786 15.25 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54005627 9231 um b=8f M [focus]
61135.64961264|info|galildriver|o 2 IN | cass: 3049789 15.25 mm b=23 move=NO | arm: 408806 475.92 mm b=03 move=OK | foc: 54005706 9232 um b=2f [cmd]
bestfocus for o...OK
Sun Apr 5 17:35:27 SAST 2026 [elapsed=332 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Apr 5 17:35:57 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
Sun Apr 5 17:35:59 SAST 2026 [elapsed=364 sec] NOTICES: det_dzdx=-888 is outside range +-250 from -558; det_dzdy=2829 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 Apr 5 17:35:59 SAST 2026 [elapsed=364 sec] Happy observing!
Sun Apr 5 17:35:59 SAST 2026 [elapsed=364 sec] Preflight took 364 seconds to complete.
Sun Apr 5 17:35:59 SAST 2026 [elapsed=364 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 121 1.3% A 0.081s 387 4.2% A 0.111s 736 8.0% A 0.141s 1197 13.1% A 0.171s 1783 19.5% A 0.202s 2465 26.9% A 0.232s 3267 35.7% A 0.262s 4174 45.6% A 0.292s 5104 55.8% A 0.322s 5997 65.5% A 0.353s 6775 74.0% A 0.383s 7433 81.2% A 0.413s 8006 87.5% A 0.443s 8445 92.3% A 0.473s 8783 95.9% A 0.504s 9022 98.6% A 0.534s 9136 99.8% A 0.564s 9152 100.0% B 0.020s 2 0.0% B 0.051s 110 1.2% B 0.081s 379 4.1% B 0.111s 728 8.0% B 0.141s 1202 13.1% B 0.172s 1774 19.4% B 0.202s 2468 27.0% B 0.232s 3266 35.7% B 0.262s 4168 45.5% B 0.293s 5103 55.7% B 0.323s 5989 65.4% B 0.353s 6771 74.0% B 0.383s 7439 81.3% B 0.414s 8001 87.4% B 0.444s 8456 92.4% B 0.474s 8795 96.1% B 0.504s 9017 98.5% B 0.535s 9138 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9050 98.9% A 0.081s 8778 95.9% A 0.111s 8435 92.1% A 0.141s 7975 87.1% A 0.171s 7401 80.8% A 0.202s 6717 73.4% A 0.232s 5923 64.7% A 0.262s 5013 54.8% A 0.292s 4069 44.5% A 0.323s 3193 34.9% A 0.353s 2410 26.3% A 0.383s 1730 18.9% A 0.413s 1164 12.7% A 0.444s 705 7.7% A 0.474s 367 4.0% A 0.504s 131 1.4% A 0.535s 16 0.2% A 0.565s 3 0.0% B 0.020s 9144 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 7377 80.6% B 0.202s 6688 73.1% B 0.232s 5892 64.4% B 0.262s 4980 54.4% B 0.293s 4050 44.2% B 0.323s 3191 34.9% B 0.353s 2417 26.4% B 0.383s 1726 18.9% B 0.413s 1162 12.7% B 0.444s 713 7.8% B 0.474s 364 4.0% B 0.504s 138 1.5% B 0.534s 15 0.2% B 0.565s 1 0.0% A -1 -0.0mm 15 N F R | B 1 0.0mm 15 N F R