Event between (500881) 13JM64 and star GA0740:07769960 with event index number of 2335304
Geocentric closest approach at 2026/06/10 05:14:37 UTC
J2000 position of star is 17:22:34.7 -15:42:24
Equinox of date position of star is 17:23:51.6 -15:43:35
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 110 degrees from the moon.
Moon is 31% illuminated.
TNO apparent brightness V=24.3
[RECON map]
TNO is 41.0 AU from the Sun
and 39.9 AU from the Earth.
The TNO is moving 24.6
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 1594 seconds.
The 1-sigma cross-track error in the shadow position is
4783 km.
The sky-plane scale is
28970.6 km/arcsec.
The TNO has an absolute magnitude Hv=8.2
Diameter=138.0 km assuming a 5% albedo -- 5.6 sec chord
Diameter=56.4 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is SCATNEAR
Star training set for 500881, (2026/06/10 05:15UT) Object RA Dec mag sep mel Antares 16:31:02.0 -26:29:18 0.9 16.38 122 35Eta Oph 17:11:53.8 -15:45:21 2.6 2.94 113 PPM 232892 17:19:50.8 -16:20:16 5.9 1.19 111 PPM 233011 17:25:07.6 -16:03:40 7.0 0.41 110 PPM 232985 17:23:46.7 -15:57:09 9.3 0.24 110 500881 17:24:05.8 -15:43:48 16.2 110 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
0.6 sigma about the mid-time.
The median site spacing is 15.9 km
RECON observability=0.5 and success probability=3.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 05:16:10 | -11.3 | NT | Down | 17.7 | 150.7 | Really Low | 05:01:10 - 05:31:10 | 4944 |
| Kamloops | 05:16:44 | -7.9 | NT | Down | 13.6 | 137.3 | Really Low | 05:01:44 - 05:31:44 | 4658 |
| Kelowna | 05:16:44 | -8.9 | NT | Down | 14.6 | 137.9 | Really Low | 05:01:44 - 05:31:44 | 4628 |
| Peachland | 05:16:46 | -8.9 | NT | Down | 14.5 | 137.7 | Really Low | 05:01:46 - 05:31:46 | 4617 |
| Summerland | 05:16:45 | -9.0 | NT | Down | 14.7 | 137.7 | Really Low | 05:01:45 - 05:31:45 | 4610 |
| Penticton | 05:16:45 | -9.1 | NT | Down | 14.8 | 137.8 | Really Low | 05:01:45 - 05:31:45 | 4608 |
| Oliver | 05:16:46 | -9.4 | NT | Down | 15.0 | 137.7 | Really Low | 05:01:46 - 05:31:46 | 4588 |
| Anarchist Mountain Observatory | 05:16:46 | -9.6 | NT | Down | 15.3 | 137.9 | Really Low | 05:01:46 - 05:31:46 | 4583 |
| Tonasket | 05:16:46 | -9.8 | NT | Down | 15.5 | 137.8 | Really Low | 05:01:46 - 05:31:46 | 4563 |
| Okanogan | 05:16:48 | -10.1 | NT | Down | 15.6 | 137.6 | Really Low | 05:01:48 - 05:31:48 | 4541 |
| Brewster | 05:16:48 | -10.2 | NT | Down | 15.8 | 137.3 | Really Low | 05:01:48 - 05:31:48 | 4522 |
| Manson/Chelan | 05:16:50 | -10.2 | NT | Down | 15.7 | 137.0 | Really Low | 05:01:50 - 05:31:50 | 4503 |
| Victoria | 05:16:55 | -8.4 | NT | Down | 13.8 | 134.3 | Really Low | 05:01:55 - 05:31:55 | 4483 |
| Wenatchee | 05:16:51 | -10.5 | NT | Down | 16.0 | 136.7 | Really Low | 05:01:51 - 05:31:51 | 4472 |
| Ellensburg | 05:16:53 | -10.8 | NT | Down | 16.2 | 136.5 | Really Low | 05:01:53 - 05:31:53 | 4443 |
| Yakima | 05:16:54 | -11.1 | NT | Down | 16.5 | 136.4 | Really Low | 05:01:54 - 05:31:54 | 4418 |
| PNWRO | 05:16:51 | -12.2 | AT | Down | 17.7 | 137.7 | Really Low | 05:01:51 - 05:31:51 | 4412 |
| Toppenish/White Swan | 05:16:54 | -11.3 | NT | Down | 16.7 | 136.5 | Really Low | 05:01:54 - 05:31:54 | 4408 |
| Goldendale | 05:16:56 | -11.6 | NT | Down | 16.9 | 136.0 | Really Low | 05:01:56 - 05:31:56 | 4366 |
| The Dalles | 05:16:57 | -11.6 | NT | Down | 16.9 | 135.6 | Really Low | 05:01:57 - 05:31:57 | 4345 |
| Maupin | 05:16:58 | -12.0 | NT | Down | 17.3 | 135.6 | Really Low | 05:01:58 - 05:31:58 | 4321 |
| Dunrhomin | 05:16:24 | -22.3 | Dark | Down | 28.2 | 149.0 | Low | 05:01:24 - 05:31:24 | 4277 |
| CU-SBO | 05:16:24 | -22.5 | Dark | Down | 28.4 | 148.8 | Low | 05:01:24 - 05:31:24 | 4259 |
| Sisters | 05:17:00 | -12.4 | AT | Down | 17.7 | 135.0 | Really Low | 05:02:00 - 05:32:00 | 4255 |
| Bend | 05:17:00 | -12.7 | AT | Down | 18.0 | 135.2 | Really Low | 05:02:00 - 05:32:00 | 4245 |
| Oregon Observatory | 05:17:01 | -12.8 | AT | Down | 18.0 | 135.1 | Really Low | 05:02:01 - 05:32:01 | 4231 |
| North Lake | 05:17:01 | -13.6 | AT | Down | 18.7 | 135.4 | Really Low | 05:02:01 - 05:32:01 | 4199 |
| Lakeview | 05:17:02 | -14.6 | AT | Down | 19.8 | 135.6 | Really Low | 05:02:02 - 05:32:02 | 4139 |
| Chiloquin | 05:17:05 | -13.6 | AT | Down | 18.7 | 134.4 | Really Low | 05:02:05 - 05:32:05 | 4136 |
| Klamath Falls | 05:17:05 | -13.9 | AT | Down | 19.0 | 134.4 | Really Low | 05:02:05 - 05:32:05 | 4114 |
| Cedarville | 05:17:03 | -15.2 | AT | Down | 20.4 | 135.6 | Low | 05:02:03 - 05:32:03 | 4098 |
| Fall River/Burney | 05:17:06 | -15.0 | AT | Down | 20.1 | 134.4 | Low | 05:02:06 - 05:32:06 | 4040 |
| Susanville | 05:17:06 | -15.9 | AT | Down | 20.9 | 134.9 | Low | 05:02:06 - 05:32:06 | 4011 |
| Gimple | 05:17:07 | -16.0 | AT | Down | 21.0 | 134.6 | Low | 05:02:07 - 05:32:07 | 3987 |
| Greenville | 05:17:07 | -16.0 | AT | Down | 20.9 | 134.6 | Low | 05:02:07 - 05:32:07 | 3985 |
| Portola | 05:17:07 | -16.4 | AT | Down | 21.4 | 134.9 | Low | 05:02:07 - 05:32:07 | 3972 |
| Quincy | 05:17:07 | -16.1 | AT | Down | 21.1 | 134.5 | Low | 05:02:07 - 05:32:07 | 3971 |
| Reno | 05:17:05 | -17.0 | AT | Down | 22.0 | 135.4 | Low | 05:02:05 - 05:32:05 | 3966 |
| Carson City | 05:17:06 | -17.2 | AT | Down | 22.2 | 135.3 | Low | 05:02:06 - 05:32:06 | 3941 |
| Yerington | 05:17:04 | -17.7 | AT | Down | 22.7 | 135.8 | Low | 05:02:04 - 05:32:04 | 3939 |
| Gardnerville | 05:17:06 | -17.5 | AT | Down | 22.4 | 135.2 | Low | 05:02:06 - 05:32:06 | 3924 |
| Hawthorne | 05:17:04 | -18.3 | Dark | Down | 23.3 | 136.1 | Low | 05:02:04 - 05:32:04 | 3916 |
| Tonopah | 05:17:01 | -19.4 | Dark | Down | 24.4 | 137.2 | Low | 05:02:01 - 05:32:01 | 3911 |
| Lee Vining | 05:17:06 | -18.5 | Dark | Down | 23.5 | 135.5 | Low | 05:02:06 - 05:32:06 | 3866 |
| Bishop | 05:17:05 | -19.4 | Dark | Down | 24.3 | 135.9 | Low | 05:02:05 - 05:32:05 | 3836 |
| Beatty | 05:17:02 | -20.5 | Dark | Down | 25.5 | 137.2 | Low | 05:02:02 - 05:32:02 | 3834 |
| Indian Springs | 05:16:59 | -21.3 | Dark | Down | 26.3 | 138.0 | Low | 05:01:59 - 05:31:59 | 3831 |
| Henderson | 05:16:58 | -22.0 | Dark | Down | 27.1 | 138.5 | Low | 05:01:58 - 05:31:58 | 3804 |
| Patrick | 05:16:56 | -23.1 | Dark | Down | 28.2 | 139.3 | Low | 05:01:56 - 05:31:56 | 3779 |
| Kingman/Dolan Springs | 05:16:57 | -23.2 | Dark | Down | 28.2 | 139.0 | Low | 05:01:57 - 05:31:57 | 3759 |
| Laughlin/Bullhead City | 05:16:58 | -22.9 | Dark | Down | 28.0 | 138.5 | Low | 05:01:58 - 05:31:58 | 3746 |
| Mohave Valley | 05:16:58 | -23.2 | Dark | Down | 28.2 | 138.5 | Low | 05:01:58 - 05:31:58 | 3726 |
| Lake Havasu City | 05:16:58 | -23.6 | Dark | Down | 28.6 | 138.5 | Low | 05:01:58 - 05:31:58 | 3700 |
| George/Scottsdale | 05:16:52 | -25.4 | Dark | Down | 30.5 | 140.5 | Up | 05:01:52 - 05:31:52 | 3689 |
| Parker | 05:16:59 | -23.9 | Dark | Down | 28.9 | 138.4 | Low | 05:01:59 - 05:31:59 | 3674 |
| Idyllwild | 05:17:06 | -23.1 | Dark | Down | 27.9 | 136.2 | Low | 05:02:06 - 05:32:06 | 3594 |
| Wildwood | 05:17:11 | -21.8 | Dark | Down | 26.5 | 134.7 | Low | 05:02:11 - 05:32:11 | 3582 |
| Calipatria | 05:17:04 | -24.2 | Dark | Down | 29.0 | 137.0 | Low | 05:02:04 - 05:32:04 | 3569 |
| Yuma | 05:17:02 | -24.9 | Dark | Down | 29.8 | 137.6 | Low | 05:02:02 - 05:32:02 | 3553 |
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 500881, (2026/06/10 05:15UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 16.38 122 35Eta Oph 17:10:22.7 -15:43:29 2.6 2.94 113 PPM 232892 17:18:19.3 -16:18:42 5.9 1.19 111 PPM 233011 17:23:36.2 -16:02:18 7.0 0.41 110 PPM 232985 17:22:15.4 -15:55:44 9.3 0.24 110 500881 17:22:34.7 -15:42:24 16.2 110 Positions are for J2000
Event circumstances last updated at 2022/04/19 23:13:59 UT
Marc W. Buie, Southwest Research Institute