CHL Preflight Night 61227
Executing preflight for 61227 at Sun Jul 5 16:57:36 -04 2026.
Log can be found in /atlas/obs/04/61227/preflight.dat.
Setting donefile '/atlas/obs/04/61227/preflight_complete.20260705205736.8660' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260705205736.8660.
Sun Jul 5 16:57:37 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun Jul 5 16:57:37 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [dae545f9-af98-49ae-9fd5-dd3e594c3c83;1800]
Sun Jul 5 16:57:37 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sun Jul 5 16:57:38 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sun Jul 5 16:57:38 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sun Jul 5 16:57:38 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun Jul 5 16:57:38 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1783285049
OK
Sun Jul 5 16:57:38 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun Jul 5 16:57:38 -04 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
Sun Jul 5 16:57:40 -04 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-04a...OK
proc1 prochain-redpost-04x...OK
Sun Jul 5 16:57:41 -04 2026 [elapsed=4 sec] QUEUE
0 observations queued.
Sun Jul 5 16:57:41 -04 2026 [elapsed=4 sec] CLOCKS
admin: Sun Jul 5 20:57:41 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
==============================================================================
+metbox2.chl.atl .PPS. 1 u 696 1024 377 0.307 0.623 2.544
*10.0.11.4 .GPS. 1 u 715 1024 377 0.532 0.809 0.632
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
+alphyn.canonica 132.163.96.1 2 u 561 1024 377 148.332 -5.222 1.289
-185.125.190.56 99.220.8.133 2 u 665 1024 377 221.512 -6.315 1.618
-185.125.190.58 99.220.8.133 2 u 662 1024 377 224.585 -6.965 1.911
-185.125.190.57 99.220.8.133 2 u 761 1024 377 224.567 -7.831 1.477
Sun Jul 5 16:57:44 -04 2026 [elapsed=7 sec] DISKS
200GB available in /atlas/obs...OK (4540GB)
200GB available in /atlas/red...OK (8685GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 5.9T 4.4T 58% /
admin:/dev/loop0 106M 106M 0 100% /snap/core/17284
admin:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/mapper/ubuntu--vg-ubuntu--lv 58G 18G 38G 32% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17284
archon:/dev/loop1 106M 106M 0 100% /snap/core/17292
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 5.4T 8.3T 40% /
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc2:/dev/md0p1 15T 560G 13T 5% /
proc2:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc3:/dev/md0p1 15T 903G 13T 7% /
proc3:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc3:/dev/loop1 106M 106M 0 100% /snap/core/17292
proc4:/dev/md0p1 15T 696G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Sun Jul 5 16:57:44 -04 2026 [elapsed=7 sec] SERVICES1
xcam
chiller...OK
dome...OK
mount...OK
modo...OK
cam...OK
acam...OK
weather...OK
met...OK
sentry...OK
dfm...OK
duplicates...OK
Sun Jul 5 16:57:45 -04 2026 [elapsed=8 sec] Disabling mount tracking.
Sun Jul 5 16:57:45 -04 2026 [elapsed=8 sec] SERVICES2
Sun Jul 5 16:57:45 -04 2026 [elapsed=8 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun Jul 5 16:57:49 -04 2026 [elapsed=12 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= 912kB time=00:00:29.18 bitrate= 256.0kbits/s speed=1.24e+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=35.00 CLOSED/CLOSED (0%) IDLE
Sun Jul 5 17:02:38 -04 2026 [elapsed=301 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: 166.72 -27.58, az/alt=324.65 +86.48 idle(e) IDLE
Sun Jul 5 17:03:36 -04 2026 [elapsed=359 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun Jul 5 17:03:58 -04 2026 [elapsed=381 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=718/0 spi=39.1 IDLE
Sun Jul 5 17:03:58 -04 2026 [elapsed=381 sec] ACAM
status Camera tripped exists... OK
Camera tripped is current... OK (5 seconds old)
Software failsafe ready... OK (NA)
CCD on...OK
ION pump on...OK
CCD temp...OK (-54.7C)
Checking CCD plane: Z0=-192.00 DZDX=+461.00 DZDY=-421.00
acam: -55C CCD TEC ION e=30.0s d=0.6s N=718 IDLE
Sun Jul 5 17:03:58 -04 2026 [elapsed=381 sec] WEATHER
status weather: clear 16.6C 8% 6/12kph@260 DP31.4C/-105C/d IDLE
...OK
Sun Jul 5 17:03:59 -04 2026 [elapsed=382 sec] MET
status...OK
met: c=N o=Y Ro2d Co1d Wo2d Ho2d To2d Do2d IDLE
Sun Jul 5 17:03:59 -04 2026 [elapsed=382 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun Jul 5 17:03:59 -04 2026 [elapsed=382 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 195.38 -12.93, az/alt=59.88 +60.07 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 2 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 102 1.1%
A 0.081s 375 4.1%
A 0.111s 723 7.9%
A 0.141s 1210 13.2%
A 0.172s 1784 19.5%
A 0.202s 2467 26.9%
A 0.232s 3250 35.5%
A 0.263s 4171 45.6%
A 0.293s 5141 56.2%
A 0.323s 5984 65.4%
A 0.353s 6786 74.1%
A 0.384s 7429 81.2%
A 0.414s 8005 87.4%
A 0.444s 8458 92.4%
A 0.475s 8794 96.1%
A 0.505s 9037 98.7%
A 0.535s 9141 99.9%
A 0.566s 9157 100.0%
B 0.020s 3 0.0%
B 0.051s 100 1.1%
B 0.081s 385 4.2%
B 0.111s 748 8.2%
B 0.141s 1209 13.2%
B 0.172s 1801 19.7%
B 0.202s 2493 27.2%
B 0.232s 3282 35.9%
B 0.263s 4200 45.9%
B 0.293s 5145 56.2%
B 0.323s 6025 65.8%
B 0.353s 6803 74.3%
B 0.384s 7450 81.4%
B 0.414s 8027 87.7%
B 0.444s 8471 92.5%
B 0.474s 8802 96.2%
B 0.505s 9038 98.7%
B 0.535s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9151 100.0%
A 0.051s 9043 98.8%
A 0.081s 8760 95.7%
A 0.111s 8416 91.9%
A 0.141s 7950 86.8%
A 0.172s 7347 80.3%
A 0.202s 6668 72.8%
A 0.232s 5866 64.1%
A 0.263s 4945 54.0%
A 0.293s 4026 44.0%
A 0.323s 3136 34.3%
A 0.354s 2360 25.8%
A 0.384s 1690 18.5%
A 0.414s 1119 12.2%
A 0.444s 692 7.6%
A 0.475s 345 3.8%
A 0.505s 124 1.4%
A 0.535s 9 0.1%
B 0.020s 9146 99.9%
B 0.050s 9030 98.6%
B 0.081s 8763 95.7%
B 0.111s 8406 91.8%
B 0.141s 7941 86.7%
B 0.171s 7356 80.4%
B 0.202s 6663 72.8%
B 0.232s 5870 64.1%
B 0.262s 4958 54.2%
B 0.293s 4006 43.8%
B 0.323s 3139 34.3%
B 0.353s 2350 25.7%
B 0.383s 1697 18.5%
B 0.414s 1134 12.4%
B 0.444s 672 7.3%
B 0.474s 351 3.8%
B 0.505s 119 1.3%
B 0.535s 5 0.1%
A 0 0.0mm 15 N F R | B -2 -0.1mm 15 N F R
---------------------------------------------------
Evaluating shutter behavior:
Shutter A opened to 100.0 percent in 0.566 seconds.
Shutter B opened to 99.9 percent in 0.535 seconds.
Shutter A closed to 0.1 percent in 0.535 seconds.
Shutter B closed to 0.1 percent in 0.535 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[3] foc=9867 IDLE
Sun Jul 5 17:04:38 -04 2026 [elapsed=421 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=718/0 spi=39.1 IDLE
taking preflight exposures:
acam...OK
acam image:
158M Jul 5 17:04 /atlas/obs/04a/61227/04a61227e0001o.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun Jul 5 17:05:00 -04 2026 [elapsed=443 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (88 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun Jul 5 17:05:00 -04 2026 [elapsed=443 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61226.87848699|info|galildriver|using focus model: foc=9830+(3.50)*16.8+(-0.35)*60.3=9867.7
61226.87849166|info|galildriver|o 3 IN | cass: 6102310 30.51 mm b=23 move=NO | arm: 406814 473.60 mm b=03 move=OK | foc: 53277358 9867 um b=0f [cmd]
bestfocus for o...OK
Sun Jul 5 17:05:01 -04 2026 [elapsed=444 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun Jul 5 17:05:30 -04 2026 [elapsed=473 sec] Disabling mount tracking.
Waiting on the mount ... done.
Turning tracking off ... done.
Waiting on the mount ... done.
Recheck mount status ... done.
sitepsw 3 OFF redLED
sitepsw 4 OFF whiteLED
Preflight completed successfully. See
http://tinyurl.com/chlpreflight
--
Please reduce summit bandwidth by turning off your webcam viewer.
Sun Jul 5 17:05:32 -04 2026 [elapsed=475 sec] Happy observing!
Sun Jul 5 17:05:32 -04 2026 [elapsed=475 sec] Preflight took 475 seconds to complete.
Sun Jul 5 17:05:32 -04 2026 [elapsed=475 sec] STARTING CLEANUP
Turning off LEDs
sitepsw 3 OFF redLED
sitepsw 4 OFF whiteLED
Releasing TCS lock [preflight]
OK TCS lock released by preflight-CHL
Preflight image
Shutter acutation data:
A 0.020s 5 0.1% A 0.051s 121 1.3% A 0.081s 394 4.3% A 0.111s 750 8.2% A 0.141s 1214 13.3% A 0.171s 1803 19.7% A 0.202s 2490 27.2% A 0.232s 3294 36.0% A 0.262s 4205 45.9% A 0.292s 5133 56.1% A 0.323s 6025 65.8% A 0.353s 6798 74.3% A 0.383s 7453 81.4% A 0.413s 8006 87.5% A 0.443s 8458 92.4% A 0.474s 8791 96.0% A 0.504s 9027 98.6% A 0.534s 9137 99.8% A 0.564s 9153 100.0% B 0.020s 1 0.0% B 0.050s 123 1.3% B 0.081s 389 4.2% B 0.111s 743 8.1% B 0.141s 1219 13.3% B 0.172s 1796 19.6% B 0.202s 2491 27.2% B 0.232s 3295 36.0% B 0.262s 4199 45.9% B 0.293s 5133 56.1% B 0.323s 6017 65.7% B 0.353s 6793 74.2% B 0.384s 7460 81.5% B 0.414s 8019 87.6% B 0.444s 8468 92.5% B 0.474s 8805 96.2% B 0.505s 9028 98.6% B 0.535s 9140 99.8% B 0.565s 9156 100.0% sleeping 3 sec between shutter moves... A 0.020s 9153 100.0% A 0.050s 9043 98.8% A 0.081s 8768 95.8% A 0.111s 8409 91.9% A 0.141s 7942 86.8% A 0.171s 7362 80.4% A 0.202s 6692 73.1% A 0.232s 5867 64.1% A 0.262s 4983 54.4% A 0.292s 4040 44.1% A 0.322s 3166 34.6% A 0.353s 2385 26.1% A 0.383s 1710 18.7% A 0.413s 1147 12.5% A 0.444s 693 7.6% A 0.474s 359 3.9% A 0.504s 119 1.3% A 0.535s 11 0.1% 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 8408 91.9% B 0.141s 7934 86.7% B 0.171s 7357 80.4% B 0.202s 6665 72.8% B 0.232s 5865 64.1% B 0.262s 4951 54.1% B 0.292s 4023 43.9% B 0.323s 3135 34.2% B 0.353s 2370 25.9% B 0.383s 1704 18.6% B 0.413s 1132 12.4% B 0.443s 700 7.6% B 0.474s 356 3.9% B 0.504s 132 1.4% 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