Event between (468861) 13LU28 and star GA1100:01775289 with event index number of 1523814
Geocentric closest approach at 2026/01/18 07:38:09 UTC
J2000 position of star is 06:08:40.2 +21:14:57
Equinox of date position of star is 06:09:49.3 +21:14:41
Stellar brightness G=16.8,
use SENSEUP=128
Star is 159 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=17.8
[RECON map]
TNO is 9.3 AU from the Sun
and 8.4 AU from the Earth.
The TNO is moving 36.3
km/sec on the sky relative to the star, or,
21.3 arcsec/hr.
The 1-sigma error in the time of the event is 10 seconds.
The 1-sigma cross-track error in the shadow position is
693 km.
The sky-plane scale is
6116.3 km/arcsec.
The TNO has an absolute magnitude Hv=8.1
Diameter=144.5 km assuming a 5% albedo -- 4.0 sec chord
Diameter=59.0 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 468861, (2026/01/18 07:38UT) Object RA Dec mag sep mel Betelgeuse 05:56:35.0 +07:24:35 0.4 14.22 149 Alhena 06:39:13.0 +16:22:29 1.9 8.41 163 62Chi2Ori 06:05:28.0 +20:08:08 4.5 1.57 157 PPM 095533 06:11:40.2 +21:13:43 8.5 0.34 159 PPM 095443 06:09:27.8 +21:18:08 10.5 0.19 159 468861 06:10:13.8 +21:14:35 16.8 159 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 23.6 km
RECON observability=1.0 and success probability=63.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 07:37:08 | -60.0 | Dark | Down | 57.1 | 216.9 | Up | 07:35:49 - 07:38:27 | 1246 |
| Summerland | 07:37:09 | -60.2 | Dark | Down | 57.5 | 216.7 | Up | 07:35:50 - 07:38:28 | 1219 |
| Penticton | 07:37:09 | -60.3 | Dark | Down | 57.5 | 216.9 | Up | 07:35:50 - 07:38:28 | 1211 |
| Okanagan Falls | 07:37:09 | -60.5 | Dark | Down | 57.6 | 217.1 | Up | 07:35:50 - 07:38:28 | 1193 |
| Oliver | 07:37:09 | -60.7 | Dark | Down | 57.7 | 217.3 | Up | 07:35:50 - 07:38:28 | 1176 |
| Anarchist Mountain Observatory | 07:37:08 | -60.9 | Dark | Down | 57.8 | 217.7 | Up | 07:35:49 - 07:38:27 | 1157 |
| Oroville | 07:37:08 | -60.9 | Dark | Down | 57.9 | 217.7 | Up | 07:35:49 - 07:38:27 | 1150 |
| Tonasket | 07:37:08 | -61.1 | Dark | Down | 58.1 | 217.9 | Up | 07:35:49 - 07:38:27 | 1126 |
| Okanogan | 07:37:09 | -61.4 | Dark | Down | 58.4 | 218.0 | Up | 07:35:50 - 07:38:28 | 1094 |
| Brewster | 07:37:09 | -61.7 | Dark | Down | 58.7 | 218.0 | Up | 07:35:50 - 07:38:28 | 1068 |
| Manson/Chelan | 07:37:10 | -61.8 | Dark | Down | 59.0 | 217.6 | Up | 07:35:51 - 07:38:29 | 1051 |
| Entiat | 07:37:10 | -62.0 | Dark | Down | 59.2 | 217.7 | Up | 07:35:51 - 07:38:29 | 1029 |
| Wenatchee | 07:37:10 | -62.2 | Dark | Down | 59.5 | 217.8 | Up | 07:35:51 - 07:38:29 | 1004 |
| Ellensburg | 07:37:10 | -62.6 | Dark | Down | 59.9 | 217.9 | Up | 07:35:51 - 07:38:29 | 964 |
| Yakima | 07:37:11 | -62.9 | Dark | Down | 60.2 | 218.3 | Up | 07:35:52 - 07:38:30 | 923 |
| Toppenish/White Swan | 07:37:10 | -63.2 | Dark | Down | 60.3 | 218.8 | Up | 07:35:51 - 07:38:29 | 899 |
| Pasco | 07:37:08 | -63.6 | Dark | Down | 59.8 | 221.0 | Up | 07:35:49 - 07:38:27 | 874 |
| Goldendale | 07:37:11 | -63.6 | Dark | Down | 60.9 | 218.7 | Up | 07:35:52 - 07:38:30 | 847 |
| PNWRO | 07:37:07 | -63.8 | Dark | Down | 59.9 | 221.7 | Up | 07:35:48 - 07:38:26 | 846 |
| George/Umatilla | 07:37:08 | -63.8 | Dark | Down | 60.2 | 221.0 | Up | 07:35:49 - 07:38:27 | 842 |
| The Dalles | 07:37:12 | -63.7 | Dark | Down | 61.3 | 218.3 | Up | 07:35:53 - 07:38:31 | 828 |
| Maupin | 07:37:12 | -64.2 | Dark | Down | 61.5 | 219.0 | Up | 07:35:53 - 07:38:31 | 784 |
| Madras/Culver | 07:37:12 | -64.7 | Dark | Down | 62.0 | 219.6 | Up | 07:35:53 - 07:38:31 | 727 |
| Sisters | 07:37:13 | -64.9 | Dark | Down | 62.4 | 219.2 | Up | 07:35:54 - 07:38:32 | 698 |
| Redmond | 07:37:12 | -65.0 | Dark | Down | 62.3 | 219.9 | Up | 07:35:53 - 07:38:31 | 691 |
| Bend | 07:37:12 | -65.1 | Dark | Down | 62.5 | 219.9 | Up | 07:35:53 - 07:38:31 | 670 |
| Oregon Observatory | 07:37:12 | -65.3 | Dark | Down | 62.7 | 219.9 | Up | 07:35:53 - 07:38:31 | 654 |
| La Pine/Gilchrist | 07:37:13 | -65.4 | Dark | Down | 62.9 | 220.1 | Up | 07:35:54 - 07:38:32 | 633 |
| North Lake | 07:37:11 | -66.0 | Dark | Down | 62.9 | 221.7 | Up | 07:35:52 - 07:38:30 | 581 |
| Chiloquin | 07:37:14 | -66.4 | Dark | Down | 63.9 | 220.9 | Up | 07:35:55 - 07:38:33 | 521 |
| Paisley | 07:37:11 | -66.6 | Dark | Down | 63.2 | 223.0 | Up | 07:35:52 - 07:38:30 | 519 |
| Klamath Falls | 07:37:13 | -66.7 | Dark | Down | 64.1 | 221.5 | Up | 07:35:54 - 07:38:32 | 485 |
| Lakeview | 07:37:10 | -67.1 | Dark | Down | 63.4 | 224.1 | Up | 07:35:51 - 07:38:29 | 464 |
| Tulelake | 07:37:13 | -67.0 | Dark | Down | 64.2 | 222.4 | Up | 07:35:54 - 07:38:32 | 453 |
| Cedarville | 07:37:10 | -67.8 | Dark | Down | 63.8 | 225.3 | Up | 07:35:51 - 07:38:29 | 393 |
| Fall River/Burney | 07:37:13 | -67.9 | Dark | Down | 64.8 | 223.9 | Up | 07:35:54 - 07:38:32 | 356 |
| Susanville | 07:37:11 | -68.7 | Dark | Down | 64.8 | 226.1 | Up | 07:35:52 - 07:38:30 | 281 |
| Greenville | 07:37:12 | -68.9 | Dark | Down | 65.2 | 226.0 | Up | 07:35:53 - 07:38:31 | 255 |
| Gimple | 07:37:12 | -68.9 | Dark | Down | 65.1 | 226.2 | Up | 07:35:53 - 07:38:31 | 254 |
| Quincy | 07:37:12 | -69.0 | Dark | Down | 65.3 | 226.4 | Up | 07:35:53 - 07:38:31 | 233 |
| Portola | 07:37:11 | -69.3 | Dark | Down | 65.1 | 227.4 | Up | 07:35:52 - 07:38:30 | 214 |
| Reno | 07:37:09 | -69.7 | Dark | Down | 65.0 | 229.0 | Up | 07:35:50 - 07:38:28 | 179 |
| Niwot | 07:36:39 | -69.7 | Dark | Down | 55.1 | 247.7 | Up | 07:35:20 - 07:37:58 | 141 |
| Carson City | 07:37:10 | -70.1 | Dark | Down | 65.2 | 229.6 | Up | 07:35:51 - 07:38:29 | 140 |
| SwRI | 07:36:39 | -69.8 | Dark | Down | 55.2 | 247.7 | Up | 07:35:20 - 07:37:58 | 130 |
| Gardnerville | 07:37:09 | -70.3 | Dark | Down | 65.3 | 230.1 | Up | 07:35:50 - 07:38:28 | 113 |
| Yerington | 07:37:08 | -70.4 | Dark | Down | 64.9 | 231.0 | Up | 07:35:49 - 07:38:27 | 112 |
| Hawthorne | 07:37:07 | -71.0 | Dark | Down | 64.9 | 232.6 | Up | 07:35:48 - 07:38:26 | 57 |
| Lee Vining | 07:37:08 | -71.4 | Dark | Down | 65.5 | 232.8 | Up | 07:35:49 - 07:38:27 | 1 |
| Tonopah | 07:37:04 | -71.8 | Dark | Down | 64.3 | 235.6 | Up | 07:35:45 - 07:38:23 | -8 |
| Bishop | 07:37:07 | -72.2 | Dark | Down | 65.4 | 235.0 | Up | 07:35:48 - 07:38:26 | -71 |
| Beatty | 07:37:03 | -73.0 | Dark | Down | 64.6 | 238.4 | Up | 07:35:44 - 07:38:22 | -137 |
| Lone Pine | 07:37:06 | -73.0 | Dark | Down | 65.6 | 236.9 | Up | 07:35:47 - 07:38:25 | -156 |
| Indian Springs | 07:37:01 | -73.6 | Dark | Down | 64.0 | 240.5 | Up | 07:35:42 - 07:38:20 | -183 |
| Henderson | 07:36:59 | -74.2 | Dark | Down | 63.8 | 242.4 | Up | 07:35:40 - 07:38:18 | -247 |
| CPSLO | 07:37:12 | -73.3 | Dark | Down | 68.1 | 235.2 | Up | 07:35:53 - 07:38:31 | -267 |
| Searchlight/Boulder City | 07:36:59 | -74.8 | Dark | Down | 64.0 | 243.5 | Up | 07:35:40 - 07:38:18 | -310 |
| Patrick | 07:36:56 | -75.0 | Dark | Down | 63.3 | 245.0 | Up | 07:35:37 - 07:38:15 | -325 |
| Laughlin/Bullhead City | 07:36:58 | -75.1 | Dark | Down | 63.9 | 244.5 | Up | 07:35:39 - 07:38:17 | -345 |
| Kingman/Dolan Springs | 07:36:57 | -75.2 | Dark | Down | 63.5 | 245.1 | Up | 07:35:38 - 07:38:16 | -347 |
| DCO | 07:36:55 | -75.4 | Dark | Down | 62.9 | 246.4 | Up | 07:35:36 - 07:38:14 | -363 |
| Mohave Valley | 07:36:58 | -75.4 | Dark | Down | 64.0 | 245.0 | Up | 07:35:39 - 07:38:17 | -375 |
| Lake Havasu City | 07:36:58 | -75.8 | Dark | Down | 64.0 | 246.1 | Up | 07:35:39 - 07:38:17 | -421 |
| Wildwood | 07:37:08 | -75.1 | Dark | Down | 67.3 | 241.0 | Up | 07:35:49 - 07:38:27 | -422 |
| Parker | 07:36:58 | -76.2 | Dark | Down | 64.1 | 246.8 | Up | 07:35:39 - 07:38:17 | -459 |
| Idyllwild | 07:37:03 | -76.1 | Dark | Down | 66.1 | 244.5 | Up | 07:35:44 - 07:38:22 | -482 |
| Blythe | 07:36:58 | -76.6 | Dark | Down | 64.5 | 247.4 | Up | 07:35:39 - 07:38:17 | -514 |
| Calipatria | 07:37:00 | -76.9 | Dark | Down | 65.4 | 247.3 | Up | 07:35:41 - 07:38:19 | -560 |
| Yuma | 07:36:58 | -77.5 | Dark | Down | 64.9 | 249.2 | Up | 07:35:39 - 07:38:17 | -615 |
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, (2026/01/18 07:38UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 14.22 149 Alhena 06:37:42.8 +16:23:57 1.9 8.41 163 62Chi2Ori 06:03:55.2 +20:08:18 4.5 1.57 157 PPM 095533 06:10:06.6 +21:14:08 8.5 0.34 159 PPM 095443 06:07:54.2 +21:18:27 10.5 0.19 159 468861 06:08:40.2 +21:14:57 16.8 159 Positions are for J2000
Event circumstances last updated at 2019/03/25 01:13:24 UT
Marc W. Buie, Southwest Research Institute