STH Recent Preflight: 61077
Executing preflight for 61077 at Thu Feb 5 18:38:43 SAST 2026.
Log can be found in /atlas/obs/03/61077/preflight.dat.
Setting donefile '/atlas/obs/03/61077/preflight_complete.20260205163843.14431' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260205163843.14431.
Thu Feb 5 18:38:44 SAST 2026 [elapsed=1 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Thu Feb 5 18:38:44 SAST 2026 [elapsed=1 sec] Getting TCS lock.
OK TCS lock granted to preflight-STH [e2c0c4df-070c-47f7-b2f8-62c88a6ef803;1800]
Thu Feb 5 18:38:44 SAST 2026 [elapsed=1 sec] Enabling red LEDs for preflight.
doorpsw 3 ON redLED
Thu Feb 5 18:38:44 SAST 2026 [elapsed=1 sec] About to start STH preflight. Point your web browser at http://localhost:7354.
Thu Feb 5 18:38:44 SAST 2026 [elapsed=1 sec] auxcam is disabled.
Thu Feb 5 18:38:44 SAST 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Thu Feb 5 18:38:44 SAST 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1770309523
OK
Thu Feb 5 18:38:44 SAST 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Thu Feb 5 18:38:44 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
Thu Feb 5 18:38:46 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
Thu Feb 5 18:38:46 SAST 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Thu Feb 5 18:38:46 SAST 2026 [elapsed=3 sec] CLOCKS
admin: Thu Feb 5 16:38:46 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 723 1024 377 1.278 0.147 0.050
*metbox2.sth.atl .PPS. 1 u 247 1024 377 0.324 -0.021 0.122
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-zibbi.ngei.csir 155.232.19.8 2 u 629 1024 377 23.297 -0.674 0.530
+ntp.as3741.net 146.64.58.41 2 u 278 1024 377 22.862 -0.115 0.195
+ntp2.as3741.net 146.64.8.7 2 u 306 1024 377 7.179 -0.112 0.786
-ntp2.inx.net.za 196.21.187.2 2 u 578 1024 377 7.260 0.102 0.043
-102.222.100.153 196.21.187.2 2 u 1004 1024 377 7.860 0.592 0.204
-ntp5.inx.net.za 196.21.187.2 2 u 824 1024 377 7.583 -0.047 0.206
+flipping.cloudh 80.72.67.48 3 u 548 1024 377 8.494 -0.157 1.141
102.216.37.99 ( 210.182.58.253 2 u 75h 1024 0 73.586 -0.040 0.000
-jnb.clearnet.pw 196.21.187.2 2 u 499 1024 377 22.802 0.750 1.240
Thu Feb 5 18:38:50 SAST 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (5848GB)
200GB available in /atlas/red...OK (8551GB)
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 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 5.2T 8.2T 39% /
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
Thu Feb 5 18:38:50 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
Thu Feb 5 18:38:50 SAST 2026 [elapsed=7 sec] Disabling mount tracking.
Thu Feb 5 18:38:50 SAST 2026 [elapsed=7 sec] SERVICES2
Thu Feb 5 18:38:50 SAST 2026 [elapsed=7 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Thu Feb 5 18:38:54 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= 916kB time=00:00:29.31 bitrate= 256.0kbits/s speed=1.52e+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
Thu Feb 5 18:41:52 SAST 2026 [elapsed=189 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: 45.03 -29.49, az/alt=324.65 +86.49 idle(e) IDLE
Thu Feb 5 18:42:50 SAST 2026 [elapsed=247 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Thu Feb 5 18:43:11 SAST 2026 [elapsed=268 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=0/0 spi=39.0 IDLE
Thu Feb 5 18:43:11 SAST 2026 [elapsed=268 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 (-53.9C)
Checking CCD plane: Z0=+1780.00 DZDX=-899.00 DZDY=+4025.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=0 IDLE
Thu Feb 5 18:43:11 SAST 2026 [elapsed=268 sec] WEATHER
status weather: C W 22.3C 46% 34/48kph@305 DP11.9C/9C/d IDLE
...OK
Thu Feb 5 18:43:11 SAST 2026 [elapsed=268 sec] MET
status...OK
met: c=N o=N Ro9h Cs0 Wo13d Ho9h To37d Do17h wait C IDLE
Thu Feb 5 18:43:12 SAST 2026 [elapsed=269 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Thu Feb 5 18:43:12 SAST 2026 [elapsed=269 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 73.96 -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 -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 10 0.1%
A 0.051s 117 1.3%
A 0.081s 403 4.4%
A 0.111s 746 8.1%
A 0.141s 1208 13.2%
A 0.172s 1804 19.7%
A 0.202s 2490 27.2%
A 0.232s 3288 35.9%
A 0.263s 4195 45.8%
A 0.293s 5144 56.2%
A 0.323s 6018 65.7%
A 0.353s 6802 74.3%
A 0.384s 7458 81.5%
A 0.414s 8017 87.6%
A 0.444s 8478 92.6%
A 0.474s 8799 96.1%
A 0.505s 9027 98.6%
A 0.535s 9153 100.0%
B 0.020s 1 0.0%
B 0.050s 99 1.1%
B 0.081s 387 4.2%
B 0.111s 726 7.9%
B 0.141s 1198 13.1%
B 0.171s 1778 19.4%
B 0.202s 2464 26.9%
B 0.232s 3258 35.6%
B 0.262s 4168 45.5%
B 0.293s 5103 55.7%
B 0.323s 5991 65.4%
B 0.353s 6774 74.0%
B 0.384s 7435 81.2%
B 0.414s 8009 87.5%
B 0.444s 8454 92.4%
B 0.474s 8795 96.1%
B 0.505s 9028 98.6%
B 0.535s 9143 99.9%
B 0.565s 9159 100.0%
sleeping 3 sec between shutter moves...
A 0.020s 9148 99.9%
A 0.051s 9062 99.0%
A 0.081s 8761 95.7%
A 0.111s 8401 91.8%
A 0.141s 7950 86.8%
A 0.172s 7352 80.3%
A 0.202s 6671 72.9%
A 0.232s 5896 64.4%
A 0.263s 4952 54.1%
A 0.293s 4016 43.9%
A 0.323s 3137 34.3%
A 0.353s 2353 25.7%
A 0.384s 1692 18.5%
A 0.414s 1132 12.4%
A 0.444s 685 7.5%
A 0.474s 345 3.8%
A 0.505s 124 1.4%
A 0.535s 12 0.1%
A 0.565s -6 0.0%
B 0.020s 9146 99.9%
B 0.050s 9039 98.7%
B 0.081s 8780 95.9%
B 0.111s 8436 92.2%
B 0.141s 7971 87.1%
B 0.171s 7399 80.8%
B 0.202s 6718 73.4%
B 0.232s 5923 64.7%
B 0.262s 5014 54.8%
B 0.293s 4079 44.6%
B 0.323s 3194 34.9%
B 0.353s 2407 26.3%
B 0.384s 1735 19.0%
B 0.414s 1158 12.7%
B 0.444s 709 7.7%
B 0.474s 366 4.0%
B 0.505s 133 1.5%
B 0.535s 17 0.2%
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 0.565 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=1.19e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=o[2] foc=9257 IDLE
Thu Feb 5 18:43:47 SAST 2026 [elapsed=304 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:
126M Feb 5 18:44 /atlas/obs/03a/61077/03a61077e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Thu Feb 5 18:44:10 SAST 2026 [elapsed=327 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (83 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Thu Feb 5 18:44:10 SAST 2026 [elapsed=327 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61076.69734316|info|galildriver|using focus model: foc=9187+(4.30)*22.2+(-0.40)*60.2=9258.4
61076.69734805|info|galildriver|o 2 IN | cass: 3046953 15.23 mm b=23 move=NO | arm: 408826 475.94 mm b=03 move=OK | foc: 54010927 9258 um b=2f [cmd]
bestfocus for o...OK
Thu Feb 5 18:44:11 SAST 2026 [elapsed=328 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Thu Feb 5 18:44:40 SAST 2026 [elapsed=357 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
Thu Feb 5 18:44:42 SAST 2026 [elapsed=359 sec] NOTICES: det_dzdx=-899 is outside range +-250 from -558; det_dzdy=4025 is outside range +-250 from -1915;
Preflight completed successfully. See
http://tinyurl.com/sthpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Thu Feb 5 18:44:42 SAST 2026 [elapsed=359 sec] Happy observing!
Thu Feb 5 18:44:42 SAST 2026 [elapsed=359 sec] Preflight took 358 seconds to complete.
Thu Feb 5 18:44:42 SAST 2026 [elapsed=359 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 0.051s 123 1.3% A 0.081s 383 4.2% A 0.111s 731 8.0% A 0.141s 1197 13.1% A 0.171s 1780 19.4% A 0.202s 2465 26.9% A 0.232s 3265 35.7% A 0.262s 4174 45.6% A 0.292s 5106 55.8% A 0.323s 5991 65.4% A 0.353s 6779 74.1% A 0.383s 7430 81.2% A 0.414s 8008 87.5% A 0.444s 8459 92.4% A 0.474s 8788 96.0% A 0.504s 9029 98.6% A 0.534s 9140 99.8% A 0.565s 9152 100.0% B 0.020s 2 0.0% B 0.050s 112 1.2% B 0.081s 380 4.2% B 0.111s 727 7.9% B 0.141s 1203 13.1% B 0.172s 1774 19.4% B 0.202s 2467 26.9% B 0.232s 3268 35.7% B 0.262s 4167 45.5% B 0.292s 5103 55.7% B 0.322s 5988 65.4% B 0.353s 6772 74.0% B 0.383s 7440 81.3% B 0.413s 8001 87.4% B 0.443s 8442 92.2% B 0.474s 8786 96.0% B 0.504s 9017 98.5% B 0.534s 9137 99.8% B 0.564s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9148 99.9% A 0.050s 9044 98.8% A 0.081s 8782 95.9% A 0.111s 8436 92.2% A 0.141s 7974 87.1% A 0.171s 7398 80.8% A 0.202s 6709 73.3% A 0.232s 5922 64.7% A 0.262s 5006 54.7% A 0.292s 4065 44.4% A 0.322s 3192 34.9% A 0.353s 2403 26.3% A 0.383s 1738 19.0% A 0.413s 1159 12.7% A 0.443s 706 7.7% A 0.474s 368 4.0% A 0.504s 130 1.4% A 0.534s 18 0.2% A 0.564s 3 0.0% B 0.020s 9145 99.9% B 0.050s 9024 98.6% B 0.081s 8780 95.9% B 0.111s 8433 92.1% B 0.141s 7970 87.1% B 0.171s 7399 80.8% B 0.202s 6713 73.3% B 0.232s 5920 64.7% B 0.262s 5010 54.7% B 0.292s 4083 44.6% B 0.323s 3192 34.9% B 0.353s 2416 26.4% B 0.383s 1724 18.8% B 0.413s 1162 12.7% B 0.443s 725 7.9% B 0.474s 365 4.0% B 0.504s 144 1.6% B 0.534s 19 0.2% B 0.564s 0 0.0% A -1 -0.0mm 15 N F R | B 0 0.0mm 15 N F R