CHL Preflight Night 61178
Executing preflight for 61178 at Sun May 17 16:58:00 -04 2026.
Log can be found in /atlas/obs/04/61178/preflight.dat.
Setting donefile '/atlas/obs/04/61178/preflight_complete.20260517205800.6687' on successful script completion.
Sitech host is tcs.
Disabling voice.exe countdown.
Disabling chiller checks.
Disabling dehumidifier power check.
Logging errors to /tmp/preflight.20260517205800.6687.
Sun May 17 16:58:00 -04 2026 [elapsed=0 sec] DFM (initialization)
get service string...OK
service is running...OK
is initialized...OK
Sun May 17 16:58:00 -04 2026 [elapsed=0 sec] Getting TCS lock.
OK TCS lock granted to preflight-CHL [31eb3187-29da-40b6-937c-2272b179a1a5;1800]
Sun May 17 16:58:00 -04 2026 [elapsed=0 sec] Enabling red LEDs for preflight.
sitepsw 3 ON redLED
Sun May 17 16:58:01 -04 2026 [elapsed=1 sec] About to start CHL preflight. Point your web browser at http://localhost:7454.
Sun May 17 16:58:01 -04 2026 [elapsed=1 sec] auxcam is disabled.
Sun May 17 16:58:01 -04 2026 [elapsed=1 sec] Skipping auxcam.
error: unknown module: vent
Sun May 17 16:58:01 -04 2026 [elapsed=1 sec] DEADMAN
Get heartbeat host ... got 'tcs'
Fetching timestamp (redis-cli -h tcs) ... done. Got response: 1779051477
OK
Sun May 17 16:58:01 -04 2026 [elapsed=1 sec] OPSEC
AUTO mode: ...OK
Sun May 17 16:58:01 -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 May 17 16:58:03 -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 May 17 16:58:03 -04 2026 [elapsed=3 sec] QUEUE
0 observations queued.
Sun May 17 16:58:03 -04 2026 [elapsed=3 sec] CLOCKS
admin: Sun May 17 20:58:03 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 831 1024 377 0.334 0.653 0.185
*10.0.11.4 .GPS. 1 u 335 1024 377 0.574 0.773 0.188
ntp.ubuntu.com .POOL. 16 p - 64 0 0.000 0.000 0.000
-185.125.190.57 99.220.8.133 2 u 505 1024 377 212.768 -7.365 1.404
-185.125.190.58 146.131.121.246 2 u 541 1024 377 215.869 -8.031 1.102
+alphyn.canonica 132.163.96.1 2 u 458 1024 377 148.000 -4.673 2.971
-185.125.190.56 99.220.8.133 2 u 942 1024 377 213.686 -7.687 1.672
Sun May 17 16:58:04 -04 2026 [elapsed=4 sec] DISKS
200GB available in /atlas/obs...OK (3514GB)
200GB available in /atlas/red...OK (7229GB)
Checking disks on admin ... archon ... proc1 ... proc2 ... proc3 ... proc4 ... done
Filesystem Size Used Avail Use% Mounted_on
admin:/dev/md0p1 11T 6.9T 3.4T 68% /
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 20G 36G 36% /
archon:/dev/loop0 106M 106M 0 100% /snap/core/17292
archon:/dev/loop1 106M 106M 0 100% /snap/core/17284
archon:/dev/sda2 974M 321M 586M 36% /boot
archon:/dev/sda1 511M 4.4M 507M 1% /boot/efi
proc1:/dev/md0p1 15T 6.8T 6.9T 50% /
proc1:/dev/sda1 511M 6.7M 505M 2% /boot/efi
proc1:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc1:/dev/loop0 106M 106M 0 100% /snap/core/17292
proc2:/dev/md0p1 15T 666G 13T 5% /
proc2:/dev/loop1 106M 106M 0 100% /snap/core/17284
proc2:/dev/loop0 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 693G 13T 6% /
proc4:/dev/loop0 106M 106M 0 100% /snap/core/17284
proc4:/dev/loop1 106M 106M 0 100% /snap/core/17292
Sun May 17 16:58:04 -04 2026 [elapsed=4 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 May 17 16:58:05 -04 2026 [elapsed=5 sec] Disabling mount tracking.
Sun May 17 16:58:05 -04 2026 [elapsed=5 sec] SERVICES2
Sun May 17 16:58:05 -04 2026 [elapsed=5 sec] CHILLER
status...OK
chiller: 3.0/3.0C ? chiller=ON dryer=? IDLE
Sun May 17 16:58:09 -04 2026 [elapsed=9 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= 914kB time=00:00:29.24 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=35.00 CLOSED/CLOSED (0%) IDLE
Sun May 17 17:01:28 -04 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: 118.15 -27.58, az/alt=324.56 +86.48 idle(e) IDLE
Sun May 17 17:02:34 -04 2026 [elapsed=274 sec] MODO
status...OK
slewing to az=60,alt=60...OK
modo: dome=stopped mount=tracking IDLE
Sun May 17 17:02:59 -04 2026 [elapsed=299 sec] CAM SERVICE
status...OK
cam: main=[idle] aux=[off] N=1012/0 spi=38.8 IDLE
Sun May 17 17:02:59 -04 2026 [elapsed=299 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 (-54.3C)
Checking CCD plane: Z0=-194.00 DZDX=+471.00 DZDY=-416.00
acam: -54C CCD TEC ION e=30.0s d=0.6s N=1012 IDLE
Sun May 17 17:02:59 -04 2026 [elapsed=299 sec] WEATHER
status weather: C 20.7C 22% 6/8kph@227 DP24.1C/43C/d IDLE
...OK
Sun May 17 17:03:00 -04 2026 [elapsed=300 sec] MET
status...OK
met: c=N o=Y Ro6d Co21h Wo6d Ho6d To6d Do6d IDLE
Sun May 17 17:03:00 -04 2026 [elapsed=300 sec] SENTRY
status...OK
sentry: close=YES open=NO drop=NO IDLE
Sun May 17 17:03:00 -04 2026 [elapsed=300 sec] DFM (SHUTTERS)
initializing and homing shutters...
mount 146.83 -12.93, az/alt=59.87 +60.08 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 -1 -0.0mm 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 -1 -0.0mm 15 N F R
exercising shutters...Using amcam-mezz-s to record
A 0.020s 9 0.1%
A 0.051s 115 1.3%
A 0.081s 391 4.3%
A 0.112s 741 8.1%
A 0.142s 1225 13.4%
A 0.172s 1799 19.7%
A 0.203s 2487 27.2%
A 0.233s 3305 36.1%
A 0.263s 4237 46.3%
A 0.294s 5169 56.5%
A 0.324s 6038 66.0%
A 0.354s 6806 74.4%
A 0.384s 7472 81.6%
A 0.415s 8027 87.7%
A 0.445s 8472 92.5%
A 0.475s 8812 96.3%
A 0.506s 9035 98.7%
A 0.536s 9141 99.9%
A 0.566s 9158 100.0%
B 0.020s 2 0.0%
B 0.051s 90 1.0%
B 0.081s 375 4.1%
B 0.111s 735 8.0%
B 0.142s 1192 13.0%
B 0.172s 1781 19.5%
B 0.202s 2493 27.2%
B 0.233s 3281 35.8%
B 0.263s 4200 45.9%
B 0.293s 5143 56.2%
B 0.324s 6022 65.8%
B 0.354s 6802 74.3%
B 0.384s 7452 81.4%
B 0.415s 8026 87.7%
B 0.445s 8470 92.5%
B 0.476s 8802 96.2%
B 0.506s 9043 98.8%
B 0.537s 9148 99.9%
sleeping 3 sec between shutter moves...
A 0.020s 9152 100.0%
A 0.050s 9051 98.9%
A 0.081s 8760 95.7%
A 0.111s 8416 91.9%
A 0.141s 7950 86.8%
A 0.172s 7348 80.3%
A 0.202s 6646 72.6%
A 0.233s 5842 63.8%
A 0.263s 4919 53.7%
A 0.293s 3997 43.7%
A 0.324s 3106 33.9%
A 0.354s 2338 25.5%
A 0.384s 1670 18.2%
A 0.414s 1107 12.1%
A 0.445s 679 7.4%
A 0.475s 337 3.7%
A 0.505s 119 1.3%
A 0.536s 7 0.1%
B 0.020s 9150 100.0%
B 0.050s 9047 98.8%
B 0.081s 8781 95.9%
B 0.111s 8419 92.0%
B 0.141s 7960 87.0%
B 0.172s 7377 80.6%
B 0.202s 6687 73.1%
B 0.232s 5898 64.4%
B 0.263s 4990 54.5%
B 0.293s 4035 44.1%
B 0.323s 3169 34.6%
B 0.353s 2372 25.9%
B 0.384s 1717 18.8%
B 0.414s 1151 12.6%
B 0.444s 686 7.5%
B 0.475s 361 3.9%
B 0.505s 126 1.4%
B 0.535s 6 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 0.537 seconds.
Shutter A closed to 0.1 percent in 0.536 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=1.11e+03x
audio converted to shutter.wav.
Copying shutter audio to dashboards ... done
DFM (FOCUS)
changing to best focus... dfm: filter=c[4] foc=9876 IDLE
Sun May 17 17:03:37 -04 2026 [elapsed=337 sec] IMAGING (acam+auxcam)
status...OK
cam: main=[idle] aux=[off] N=1012/0 spi=38.8 IDLE
taking preflight exposures:
acam...OK
acam image:
158M May 17 17:03 /atlas/obs/04a/61178/04a61178e0001c.arch.fz
AUXCAM: Skipping (noauxcam=1).
Sun May 17 17:03:59 -04 2026 [elapsed=359 sec] DEHUMIDIFIER
OTA humidity exists...OK
OTA humidity is current... OK (23 seconds old)
OTA humidity level...OK (6%)
Dome humidity exists...OK
Dome humidity is current... OK
Sun May 17 17:03:59 -04 2026 [elapsed=359 sec] SCHEDULE
Status...OK
Checking scheduled filter...correct filter inserted
dfm: OK [bestfocus]
61177.87778070|info|galildriver|using focus model: foc=9830+(3.50)*19.6+(-0.35)*60.3=9877.5
61177.87778537|info|galildriver|c 4 IN | cass: 9138231 45.69 mm b=23 move=NO | arm: 407091 473.92 mm b=0b move=OK F | foc: 53275480 9877 um b=0f [cmd]
bestfocus for c...OK
Sun May 17 17:04:01 -04 2026 [elapsed=361 sec] Parking the mount.
Parking ... mount: task <-parksouth> accepted
Waiting ... Mount is parked.
Sun May 17 17:04:34 -04 2026 [elapsed=394 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 May 17 17:04:36 -04 2026 [elapsed=396 sec] Happy observing!
Sun May 17 17:04:36 -04 2026 [elapsed=396 sec] Preflight took 396 seconds to complete.
Sun May 17 17:04:36 -04 2026 [elapsed=396 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 3 0.0% A 0.051s 116 1.3% A 0.081s 386 4.2% A 0.112s 735 8.0% A 0.142s 1196 13.1% A 0.173s 1801 19.7% A 0.204s 2488 27.2% A 0.234s 3321 36.3% A 0.265s 4235 46.3% A 0.295s 5162 56.4% A 0.326s 6051 66.1% A 0.356s 6821 74.5% A 0.387s 7493 81.9% A 0.417s 8057 88.0% A 0.448s 8495 92.8% A 0.478s 8821 96.4% A 0.509s 9049 98.9% A 0.539s 9145 99.9% B 0.020s 1 0.0% B 0.050s 104 1.1% B 0.081s 369 4.0% B 0.111s 715 7.8% B 0.141s 1186 13.0% B 0.172s 1751 19.1% B 0.202s 2443 26.7% B 0.232s 3241 35.4% B 0.263s 4137 45.2% B 0.293s 5075 55.4% B 0.324s 5988 65.4% B 0.354s 6772 74.0% B 0.385s 7440 81.3% B 0.415s 8018 87.6% B 0.446s 8468 92.5% B 0.476s 8805 96.2% B 0.507s 9028 98.6% B 0.537s 9141 99.9% B 0.568s 9157 100.0% sleeping 3 sec between shutter moves... A 0.020s 9152 100.0% A 0.050s 9044 98.8% A 0.081s 8767 95.8% A 0.111s 8408 91.9% A 0.142s 7942 86.8% A 0.172s 7360 80.4% A 0.203s 6644 72.6% A 0.234s 5839 63.8% A 0.264s 4920 53.7% A 0.295s 3950 43.2% A 0.325s 3085 33.7% A 0.355s 2317 25.3% A 0.386s 1651 18.0% A 0.416s 1097 12.0% A 0.447s 655 7.2% A 0.477s 322 3.5% A 0.508s 104 1.1% A 0.538s 8 0.1% B 0.020s 9144 99.9% B 0.051s 9015 98.5% B 0.082s 8770 95.8% B 0.112s 8405 91.8% B 0.143s 7934 86.7% B 0.173s 7357 80.4% B 0.203s 6665 72.8% B 0.234s 5864 64.1% B 0.264s 4919 53.7% B 0.295s 3993 43.6% B 0.325s 3110 34.0% B 0.356s 2344 25.6% B 0.387s 1643 17.9% B 0.417s 1100 12.0% B 0.447s 660 7.2% B 0.478s 329 3.6% B 0.509s 111 1.2% B 0.539s 7 0.1% A 0 0.0mm 15 N F R | B 0 0.0mm 15 N F R