Event between (468861) 13LU28 and star GA1120:02189486 with event index number of 1523752
Geocentric closest approach at 2025/12/15 10:46:11 UTC
J2000 position of star is 06:30:24.1 +22:30:49
Equinox of date position of star is 06:31:33.8 +22:29:57
Stellar brightness G=13.3,
use SENSEUP=32
Star is 116 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=17.7
[RECON map]
TNO is 9.3 AU from the Sun
and 8.3 AU from the Earth.
The TNO is moving 38.8
km/sec on the sky relative to the star, or,
23.2 arcsec/hr.
The 1-sigma error in the time of the event is 9 seconds.
The 1-sigma cross-track error in the shadow position is
683 km.
The sky-plane scale is
6023.2 km/arcsec.
The TNO has an absolute magnitude Hv=8.1
Diameter=144.5 km assuming a 5% albedo -- 3.7 sec chord
Diameter=59.0 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
Star training set for 468861, (2025/12/15 10:46UT) Object RA Dec mag sep mel Betelgeuse 05:56:34.7 +07:24:35 0.4 17.32 122 Alhena 06:39:12.6 +16:22:30 1.9 6.35 114 PPM 095944 06:27:07.6 +23:18:38 6.0 1.38 117 PPM 096079 06:31:55.9 +22:31:30 7.2 0.03 116 468861 06:31:58.2 +22:29:39 13.3 116 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
5.0 sigma about the mid-time.
The median site spacing is 22.5 km
RECON observability=1.0 and success probability=58.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 10:45:04 | -47.3 | Dark | Down | 54.6 | 229.8 | Up | 10:43:49 - 10:46:19 | 1484 |
| Summerland | 10:45:05 | -47.6 | Dark | Down | 54.9 | 229.8 | Up | 10:43:50 - 10:46:20 | 1454 |
| Penticton | 10:45:04 | -47.5 | Dark | Down | 54.9 | 230.0 | Up | 10:43:49 - 10:46:19 | 1447 |
| Okanagan Falls | 10:45:04 | -47.6 | Dark | Down | 55.1 | 230.2 | Up | 10:43:49 - 10:46:19 | 1428 |
| Oliver | 10:45:04 | -47.6 | Dark | Down | 55.2 | 230.4 | Up | 10:43:49 - 10:46:19 | 1411 |
| Anarchist Mountain Observatory | 10:45:04 | -47.6 | Dark | Down | 55.2 | 230.8 | Up | 10:43:49 - 10:46:19 | 1393 |
| Oroville | 10:45:04 | -47.7 | Dark | Down | 55.2 | 230.8 | Up | 10:43:49 - 10:46:19 | 1386 |
| Tonasket | 10:45:04 | -47.7 | Dark | Down | 55.4 | 231.1 | Up | 10:43:49 - 10:46:19 | 1362 |
| Okanogan | 10:45:04 | -48.0 | Dark | Down | 55.7 | 231.3 | Up | 10:43:49 - 10:46:19 | 1328 |
| Brewster | 10:45:04 | -48.2 | Dark | Down | 56.0 | 231.3 | Up | 10:43:49 - 10:46:19 | 1300 |
| Manson/Chelan | 10:45:05 | -48.5 | Dark | Down | 56.3 | 231.0 | Up | 10:43:50 - 10:46:20 | 1280 |
| Entiat | 10:45:05 | -48.6 | Dark | Down | 56.5 | 231.2 | Up | 10:43:50 - 10:46:20 | 1257 |
| Wenatchee | 10:45:05 | -48.8 | Dark | Down | 56.7 | 231.4 | Up | 10:43:50 - 10:46:20 | 1231 |
| Ellensburg | 10:45:05 | -49.0 | Dark | Down | 57.0 | 231.6 | Up | 10:43:50 - 10:46:20 | 1189 |
| Yakima | 10:45:05 | -49.2 | Dark | Down | 57.3 | 232.0 | Up | 10:43:50 - 10:46:20 | 1147 |
| Toppenish/White Swan | 10:45:05 | -49.2 | Dark | Down | 57.3 | 232.5 | Up | 10:43:50 - 10:46:20 | 1124 |
| Pasco | 10:45:02 | -48.4 | Dark | Down | 56.7 | 234.4 | Up | 10:43:47 - 10:46:17 | 1108 |
| PNWRO | 10:45:02 | -48.3 | Dark | Down | 56.7 | 235.0 | Up | 10:43:47 - 10:46:17 | 1082 |
| George/Umatilla | 10:45:03 | -48.6 | Dark | Down | 57.0 | 234.5 | Up | 10:43:48 - 10:46:18 | 1074 |
| Goldendale | 10:45:05 | -49.6 | Dark | Down | 57.9 | 232.6 | Up | 10:43:50 - 10:46:20 | 1067 |
| The Dalles | 10:45:06 | -49.9 | Dark | Down | 58.2 | 232.4 | Up | 10:43:51 - 10:46:21 | 1045 |
| Maupin | 10:45:06 | -50.0 | Dark | Down | 58.4 | 233.1 | Up | 10:43:51 - 10:46:21 | 1001 |
| Madras/Culver | 10:45:05 | -50.2 | Dark | Down | 58.8 | 233.8 | Up | 10:43:50 - 10:46:20 | 943 |
| Sisters | 10:45:06 | -50.6 | Dark | Down | 59.3 | 233.6 | Up | 10:43:51 - 10:46:21 | 910 |
| Redmond | 10:45:05 | -50.4 | Dark | Down | 59.0 | 234.2 | Up | 10:43:50 - 10:46:20 | 906 |
| Bend | 10:45:06 | -50.5 | Dark | Down | 59.2 | 234.3 | Up | 10:43:51 - 10:46:21 | 884 |
| Oregon Observatory | 10:45:06 | -50.7 | Dark | Down | 59.4 | 234.3 | Up | 10:43:51 - 10:46:21 | 866 |
| La Pine/Gilchrist | 10:45:06 | -50.8 | Dark | Down | 59.6 | 234.5 | Up | 10:43:51 - 10:46:21 | 844 |
| North Lake | 10:45:05 | -50.5 | Dark | Down | 59.5 | 236.0 | Up | 10:43:50 - 10:46:20 | 797 |
| Paisley | 10:45:04 | -50.4 | Dark | Down | 59.5 | 237.2 | Up | 10:43:49 - 10:46:19 | 737 |
| Chiloquin | 10:45:06 | -51.4 | Dark | Down | 60.4 | 235.6 | Up | 10:43:51 - 10:46:21 | 728 |
| Klamath Falls | 10:45:06 | -51.4 | Dark | Down | 60.6 | 236.2 | Up | 10:43:51 - 10:46:21 | 691 |
| Lakeview | 10:45:03 | -50.4 | Dark | Down | 59.7 | 238.2 | Up | 10:43:48 - 10:46:18 | 682 |
| Tulelake | 10:45:05 | -51.3 | Dark | Down | 60.5 | 237.0 | Up | 10:43:50 - 10:46:20 | 661 |
| Cedarville | 10:45:03 | -50.4 | Dark | Down | 59.9 | 239.4 | Up | 10:43:48 - 10:46:18 | 612 |
| Fall River/Burney | 10:45:05 | -51.4 | Dark | Down | 61.0 | 238.5 | Up | 10:43:50 - 10:46:20 | 564 |
| Susanville | 10:45:03 | -51.0 | Dark | Down | 60.8 | 240.5 | Up | 10:43:48 - 10:46:18 | 494 |
| Niwot | 10:44:35 | -39.5 | Dark | Up | 50.0 | 257.0 | Up | 10:43:20 - 10:45:50 | 492 |
| SwRI | 10:44:35 | -39.5 | Dark | Up | 50.1 | 257.1 | Up | 10:43:20 - 10:45:50 | 480 |
| Greenville | 10:45:04 | -51.3 | Dark | Down | 61.1 | 240.5 | Up | 10:43:49 - 10:46:19 | 465 |
| Gimple | 10:45:04 | -51.3 | Dark | Down | 61.1 | 240.6 | Up | 10:43:49 - 10:46:19 | 465 |
| Quincy | 10:45:04 | -51.4 | Dark | Down | 61.2 | 240.8 | Up | 10:43:49 - 10:46:19 | 443 |
| Portola | 10:45:03 | -51.0 | Dark | Down | 61.0 | 241.7 | Up | 10:43:48 - 10:46:18 | 428 |
| Reno | 10:45:02 | -50.6 | Dark | Down | 60.7 | 242.9 | Up | 10:43:47 - 10:46:17 | 398 |
| Carson City | 10:45:01 | -50.7 | Dark | Down | 60.8 | 243.5 | Up | 10:43:46 - 10:46:16 | 359 |
| Yerington | 10:45:00 | -50.2 | Dark | Down | 60.4 | 244.6 | Up | 10:43:45 - 10:46:15 | 337 |
| Gardnerville | 10:45:01 | -50.7 | Dark | Down | 60.9 | 244.0 | Up | 10:43:46 - 10:46:16 | 333 |
| Hawthorne | 10:44:59 | -49.9 | Dark | Down | 60.3 | 246.0 | Up | 10:43:44 - 10:46:14 | 286 |
| Tonopah | 10:44:56 | -48.9 | Dark | Down | 59.4 | 248.3 | Up | 10:43:41 - 10:46:11 | 233 |
| Lee Vining | 10:45:00 | -50.4 | Dark | Down | 60.8 | 246.3 | Up | 10:43:45 - 10:46:15 | 225 |
| Bishop | 10:44:58 | -49.9 | Dark | Down | 60.6 | 248.1 | Up | 10:43:43 - 10:46:13 | 159 |
| Beatty | 10:44:55 | -48.6 | Dark | Down | 59.5 | 250.6 | Up | 10:43:40 - 10:46:10 | 107 |
| Lone Pine | 10:44:57 | -49.7 | Dark | Down | 60.6 | 249.8 | Up | 10:43:42 - 10:46:12 | 76 |
| Indian Springs | 10:44:53 | -47.8 | Dark | Down | 58.8 | 252.3 | Up | 10:43:38 - 10:46:08 | 71 |
| Henderson | 10:44:51 | -47.3 | Dark | Down | 58.4 | 253.8 | Up | 10:43:36 - 10:46:06 | 13 |
| Searchlight/Boulder City | 10:44:51 | -47.3 | Dark | Down | 58.5 | 254.7 | Up | 10:43:36 - 10:46:06 | -50 |
| Patrick | 10:44:49 | -46.4 | Dark | Down | 57.7 | 255.8 | Up | 10:43:34 - 10:46:04 | -54 |
| CPSLO | 10:45:03 | -51.9 | Dark | Down | 63.0 | 249.1 | Up | 10:43:48 - 10:46:18 | -60 |
| Kingman/Dolan Springs | 10:44:49 | -46.6 | Dark | Down | 57.9 | 255.9 | Up | 10:43:34 - 10:46:04 | -79 |
| Laughlin/Bullhead City | 10:44:50 | -47.0 | Dark | Down | 58.3 | 255.5 | Up | 10:43:35 - 10:46:05 | -82 |
| DCO | 10:44:47 | -45.9 | Dark | Up | 57.2 | 256.9 | Up | 10:43:32 - 10:46:02 | -86 |
| Mohave Valley | 10:44:50 | -47.0 | Dark | Down | 58.4 | 256.0 | Up | 10:43:35 - 10:46:05 | -112 |
| Lake Havasu City | 10:44:49 | -46.9 | Dark | Down | 58.3 | 256.8 | Up | 10:43:34 - 10:46:04 | -155 |
| Parker | 10:44:49 | -46.8 | Dark | Up | 58.4 | 257.4 | Up | 10:43:34 - 10:46:04 | -194 |
| Wildwood | 10:44:58 | -50.4 | Dark | Down | 61.8 | 253.5 | Up | 10:43:43 - 10:46:13 | -198 |
| Idyllwild | 10:44:54 | -48.8 | Dark | Down | 60.4 | 255.9 | Up | 10:43:39 - 10:46:09 | -240 |
| Blythe | 10:44:50 | -47.1 | Dark | Down | 58.7 | 258.0 | Up | 10:43:35 - 10:46:05 | -252 |
| Calipatria | 10:44:52 | -47.9 | Dark | Down | 59.6 | 258.0 | Up | 10:43:37 - 10:46:07 | -307 |
| Yuma | 10:44:50 | -47.1 | Dark | Up | 58.9 | 259.4 | Up | 10:43:35 - 10:46:05 | -354 |
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 468861, (2025/12/15 10:46UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 17.32 122 Alhena 06:37:42.8 +16:23:57 1.9 6.35 114 PPM 095944 06:25:33.0 +23:19:37 6.0 1.38 117 PPM 096079 06:30:21.9 +22:32:41 7.2 0.03 116 468861 06:30:24.1 +22:30:49 13.3 116 Positions are for J2000
Event circumstances last updated at 2019/03/25 00:56:17 UT
Marc W. Buie, Southwest Research Institute