Event between (469584) 03YW179 and star GA1020:03552846 with event index number of 2820410
Geocentric closest approach at 2025/01/02 06:17:19 UTC
J2000 position of star is 10:13:23.9 +13:03:37
Equinox of date position of star is 10:14:41.7 +12:56:23
Stellar brightness G=13.0,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 160 degrees from the moon.
Moon is 6% illuminated.
Apparent brightness V=22.8
[RECON map]
Object is 36.5 AU from the Sun
and 35.9 AU from the Earth.
Apparent velocity is 14.8
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 534 seconds.
The 1-sigma cross-track error in the shadow position is
4961 km.
The sky-plane scale is
26004.1 km/arcsec.
The object has an absolute magnitude Hv=7.1
Diameter=237.7 km assuming a 5% albedo -- 15.6 sec chord
Diameter=97.0 km assuming a 30% albedo -- 6.4 sec chord
Dynamical classification is 5:3EE
Star training set for 469584, (2025/01/02 06:25UT) Object RA Dec mag sep mel Regulus 10:09:42.1 +11:50:39 1.3 1.64 161 37 Leo 10:18:01.1 +13:36:10 5.4 1.04 160 PPM 127265 10:18:16.7 +12:47:16 8.1 0.88 160 PPM 127219 10:14:51.1 +12:57:49 9.8 0.04 160 469584 10:14:44.3 +12:56:08 13.0 160 Positions are for equinox of date
This table contains the target star visibility for the RECON
network. The observing range has been set to a maximum of
1.7 sigma about the mid-time.
The median site spacing is 54.2 km
RECON observability=0.4 and success probability=12.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 06:22:58 | -59.6 | Dark | Down | 27.7 | 105.0 | Low | 06:07:58 - 06:37:58 | 1171 |
| Kamloops | 06:23:30 | -55.9 | Dark | Down | 19.1 | 92.6 | Really Low | 06:08:30 - 06:38:30 | 1069 |
| Kelowna | 06:23:32 | -56.9 | Dark | Down | 19.7 | 93.0 | Really Low | 06:08:32 - 06:38:32 | 980 |
| Peachland | 06:23:32 | -56.8 | Dark | Down | 19.5 | 92.8 | Really Low | 06:08:32 - 06:38:32 | 971 |
| Summerland | 06:23:32 | -57.0 | Dark | Down | 19.6 | 92.8 | Really Low | 06:08:32 - 06:38:32 | 955 |
| Penticton | 06:23:32 | -57.1 | Dark | Down | 19.7 | 92.8 | Really Low | 06:08:32 - 06:38:32 | 947 |
| Oliver | 06:23:34 | -57.3 | Dark | Down | 19.7 | 92.7 | Really Low | 06:08:34 - 06:38:34 | 911 |
| Anarchist Mountain Observatory | 06:23:33 | -57.5 | Dark | Down | 19.8 | 92.8 | Really Low | 06:08:33 - 06:38:33 | 892 |
| Victoria | 06:23:41 | -55.9 | Dark | Down | 17.2 | 89.6 | Really Low | 06:08:41 - 06:38:41 | 873 |
| Okanogan | 06:23:36 | -57.9 | Dark | Down | 19.7 | 92.4 | Really Low | 06:08:36 - 06:38:36 | 827 |
| Brewster | 06:23:37 | -58.0 | Dark | Down | 19.6 | 92.2 | Really Low | 06:08:37 - 06:38:37 | 801 |
| Manson/Chelan | 06:23:38 | -57.9 | Dark | Down | 19.4 | 91.8 | Really Low | 06:08:38 - 06:38:38 | 782 |
| Wenatchee | 06:23:40 | -58.2 | Dark | Down | 19.3 | 91.5 | Really Low | 06:08:40 - 06:38:40 | 734 |
| Ellensburg | 06:23:41 | -58.3 | Dark | Down | 19.1 | 91.2 | Really Low | 06:08:41 - 06:38:41 | 693 |
| Yakima | 06:23:42 | -58.6 | Dark | Down | 19.1 | 91.1 | Really Low | 06:08:42 - 06:38:42 | 650 |
| Toppenish/White Swan | 06:23:42 | -58.8 | Dark | Down | 19.3 | 91.1 | Really Low | 06:08:42 - 06:38:42 | 626 |
| PNWRO | 06:23:40 | -59.8 | Dark | Down | 20.3 | 92.1 | Low | 06:08:40 - 06:38:40 | 577 |
| The Dalles | 06:23:45 | -58.9 | Dark | Down | 18.7 | 90.3 | Really Low | 06:08:45 - 06:38:45 | 551 |
| Maupin | 06:23:46 | -59.2 | Dark | Down | 18.8 | 90.2 | Really Low | 06:08:46 - 06:38:46 | 507 |
| Sisters | 06:23:49 | -59.4 | Dark | Down | 18.5 | 89.6 | Really Low | 06:08:49 - 06:38:49 | 418 |
| Bend | 06:23:49 | -59.7 | Dark | Down | 18.7 | 89.7 | Really Low | 06:08:49 - 06:38:49 | 391 |
| Oregon Observatory | 06:23:50 | -59.8 | Dark | Down | 18.6 | 89.6 | Really Low | 06:08:50 - 06:38:50 | 374 |
| Chiloquin | 06:23:54 | -60.2 | Dark | Down | 18.2 | 88.8 | Really Low | 06:08:54 - 06:38:54 | 238 |
| Klamath Falls | 06:23:54 | -60.5 | Dark | Down | 18.3 | 88.8 | Really Low | 06:08:54 - 06:38:54 | 201 |
| Cedarville | 06:23:53 | -61.9 | Dark | Down | 19.5 | 89.6 | Really Low | 06:08:53 - 06:38:53 | 113 |
| Fall River/Burney | 06:23:56 | -61.4 | Dark | Down | 18.6 | 88.6 | Really Low | 06:08:56 - 06:38:56 | 71 |
| Greenville | 06:23:57 | -62.1 | Dark | Down | 18.9 | 88.6 | Really Low | 06:08:57 - 06:38:57 | -30 |
| Gimple | 06:23:57 | -62.2 | Dark | Down | 19.0 | 88.7 | Really Low | 06:08:57 - 06:38:57 | -31 |
| Quincy | 06:23:57 | -62.2 | Dark | Down | 18.9 | 88.6 | Really Low | 06:08:57 - 06:38:57 | -52 |
| Portola | 06:23:57 | -62.6 | Dark | Down | 19.3 | 88.8 | Really Low | 06:08:57 - 06:38:57 | -69 |
| Dunrhomin | 06:23:19 | -70.6 | Dark | Down | 30.8 | 99.2 | Up | 06:08:19 - 06:38:19 | -71 |
| Nikitin | 06:23:20 | -70.7 | Dark | Down | 30.8 | 99.1 | Up | 06:08:20 - 06:38:20 | -91 |
| CU-SBO | 06:23:20 | -70.7 | Dark | Down | 30.7 | 99.0 | Up | 06:08:20 - 06:38:20 | -98 |
| Reno | 06:23:56 | -63.2 | Dark | Down | 19.7 | 89.1 | Really Low | 06:08:56 - 06:38:56 | -103 |
| Carson City | 06:23:57 | -63.4 | Dark | Down | 19.8 | 89.0 | Really Low | 06:08:57 - 06:38:57 | -142 |
| Yerington | 06:23:56 | -63.9 | Dark | Down | 20.2 | 89.4 | Low | 06:08:56 - 06:38:56 | -168 |
| Gardnerville | 06:23:57 | -63.5 | Dark | Down | 19.8 | 89.0 | Really Low | 06:08:57 - 06:38:57 | -169 |
| Hawthorne | 06:23:56 | -64.5 | Dark | Down | 20.7 | 89.5 | Low | 06:08:56 - 06:38:56 | -223 |
| Lee Vining | 06:23:57 | -64.4 | Dark | Down | 20.3 | 89.0 | Low | 06:08:57 - 06:38:57 | -280 |
| Bishop | 06:23:57 | -65.2 | Dark | Down | 20.8 | 89.2 | Low | 06:08:57 - 06:38:57 | -351 |
| Beatty | 06:23:54 | -66.6 | Dark | Down | 22.1 | 90.0 | Low | 06:08:54 - 06:38:54 | -412 |
| Patrick | 06:23:49 | -69.3 | Dark | Down | 24.5 | 91.1 | Low | 06:08:49 - 06:38:49 | -590 |
| Laughlin/Bullhead City | 06:23:51 | -69.0 | Dark | Down | 23.9 | 90.6 | Low | 06:08:51 - 06:38:51 | -614 |
| Lake Havasu City | 06:23:51 | -69.5 | Dark | Down | 24.1 | 90.4 | Low | 06:08:51 - 06:38:51 | -689 |
| Wildwood | 06:24:01 | -66.5 | Dark | Down | 20.6 | 87.9 | Low | 06:09:01 - 06:39:01 | -707 |
| Idyllwild | 06:23:58 | -68.1 | Dark | Down | 22.1 | 88.8 | Low | 06:08:58 - 06:38:58 | -759 |
| George/Scottsdale | 06:23:45 | -71.6 | Dark | Down | 26.1 | 91.4 | Low | 06:08:45 - 06:38:45 | -783 |
| Calipatria | 06:23:56 | -69.2 | Dark | Down | 23.1 | 89.1 | Low | 06:08:56 - 06:38:56 | -833 |
| Yuma | 06:23:54 | -70.1 | Dark | Down | 23.9 | 89.4 | Low | 06:08:54 - 06:38:54 | -886 |
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 469584, (2025/01/02 06:25UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 1.64 161 37 Leo 10:16:40.7 +13:43:41 5.4 1.04 160 PPM 127265 10:16:56.6 +12:54:48 8.1 0.88 160 PPM 127219 10:13:30.7 +13:05:17 9.8 0.04 160 469584 10:13:23.9 +13:03:37 13.0 160 Positions are for J2000
Event circumstances last updated at 2024/03/19 03:37:11 UT
Marc W. Buie, Southwest Research Institute