Event between (552678) 10JG210 and star GA0800:11141133 with event index number of 2223953
Geocentric closest approach at 2026/08/11 06:01:02 UTC
J2000 position of star is 18:38:48.9 -08:24:38
Equinox of date position of star is 18:40:03.6 -08:23:20
Stellar brightness G=13.8,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 155 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=21.1
[RECON map]
TNO is 17.6 AU from the Sun
and 16.8 AU from the Earth.
The TNO is moving 17.1
km/sec on the sky relative to the star, or,
5.0 arcsec/hr.
The 1-sigma error in the time of the event is 117 seconds.
The 1-sigma cross-track error in the shadow position is
1623 km.
The sky-plane scale is
12192.2 km/arcsec.
The TNO has an absolute magnitude Hv=8.5
Diameter=114.3 km assuming a 5% albedo -- 6.9 sec chord
Diameter=46.7 km assuming a 30% albedo -- 2.8 sec chord
Dynamical classification is CENTAURR
Star training set for 552678, (2026/08/11 05:59UT) Object RA Dec mag sep mel Antares 16:31:02.6 -26:29:19 0.9 35.57 131 Nunki 18:56:54.8 -26:15:40 2.0 18.31 164 PPM 202008 18:41:27.0 -07:45:54 5.7 0.69 155 PPM 202020 18:42:15.2 -08:41:32 8.0 0.58 155 PPM 201980 18:39:54.6 -08:22:28 9.4 0.09 155 552678 18:40:15.9 -08:23:07 13.8 155 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 21.0 km
RECON observability=1.0 and success probability=0.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 05:57:47 | -18.3 | Dark | Down | 30.4 | 190.4 | Up | 05:47:33 - 06:08:01 | 6905 |
| Victoria | 05:58:01 | -19.0 | Dark | Down | 32.8 | 187.2 | Up | 05:47:47 - 06:08:15 | 6901 |
| Peachland | 05:57:45 | -19.3 | Dark | Down | 31.2 | 191.2 | Up | 05:47:31 - 06:07:59 | 6830 |
| Kelowna | 05:57:45 | -19.3 | Dark | Down | 31.1 | 191.6 | Up | 05:47:31 - 06:07:59 | 6824 |
| Summerland | 05:57:45 | -19.4 | Dark | Down | 31.4 | 191.4 | Up | 05:47:31 - 06:07:59 | 6817 |
| Penticton | 05:57:45 | -19.5 | Dark | Down | 31.4 | 191.5 | Up | 05:47:31 - 06:07:59 | 6809 |
| Oliver | 05:57:46 | -19.8 | Dark | Down | 31.8 | 191.5 | Up | 05:47:32 - 06:08:00 | 6789 |
| Anarchist Mountain Observatory | 05:57:47 | -20.0 | Dark | Down | 31.9 | 191.8 | Up | 05:47:33 - 06:08:01 | 6771 |
| Okanogan | 05:57:48 | -20.5 | Dark | Down | 32.6 | 191.6 | Up | 05:47:34 - 06:08:02 | 6741 |
| Manson/Chelan | 05:57:50 | -20.7 | Dark | Down | 33.1 | 191.0 | Up | 05:47:36 - 06:08:04 | 6736 |
| Brewster | 05:57:48 | -20.7 | Dark | Down | 32.9 | 191.4 | Up | 05:47:34 - 06:08:02 | 6733 |
| Wenatchee | 05:57:52 | -21.0 | Dark | Down | 33.6 | 190.9 | Up | 05:47:38 - 06:08:06 | 6714 |
| Ellensburg | 05:57:53 | -21.3 | Dark | Down | 34.0 | 190.7 | Up | 05:47:39 - 06:08:07 | 6698 |
| Yakima | 05:57:54 | -21.6 | Dark | Down | 34.4 | 190.7 | Up | 05:47:40 - 06:08:08 | 6674 |
| Toppenish/White Swan | 05:57:52 | -21.9 | Dark | Down | 34.6 | 190.9 | Up | 05:47:38 - 06:08:06 | 6654 |
| The Dalles | 05:57:57 | -22.2 | Dark | Down | 35.5 | 190.1 | Up | 05:47:43 - 06:08:11 | 6639 |
| Maupin | 05:57:57 | -22.6 | Dark | Down | 35.9 | 190.3 | Up | 05:47:43 - 06:08:11 | 6608 |
| Sisters | 05:58:00 | -23.1 | Dark | Down | 36.8 | 189.8 | Up | 05:47:46 - 06:08:14 | 6574 |
| PNWRO | 05:57:48 | -22.7 | Dark | Down | 34.8 | 192.8 | Up | 05:47:34 - 06:08:02 | 6569 |
| Bend | 05:58:00 | -23.4 | Dark | Down | 37.0 | 190.2 | Up | 05:47:46 - 06:08:14 | 6548 |
| Oregon Observatory | 05:58:00 | -23.5 | Dark | Down | 37.2 | 190.0 | Up | 05:47:46 - 06:08:14 | 6543 |
| Chiloquin | 05:58:04 | -24.4 | Dark | Down | 38.5 | 189.7 | Up | 05:47:50 - 06:08:18 | 6476 |
| Sleaford | 05:56:59 | -20.9 | Dark | Down | 26.3 | 205.9 | Low | 05:46:45 - 06:07:13 | 6455 |
| Klamath Falls | 05:58:04 | -24.7 | Dark | Down | 38.9 | 189.9 | Up | 05:47:50 - 06:08:18 | 6451 |
| Fall River/Burney | 05:58:05 | -25.9 | Dark | Down | 40.0 | 190.5 | Up | 05:47:51 - 06:08:19 | 6355 |
| Cedarville | 05:57:59 | -26.0 | Dark | Down | 39.3 | 192.0 | Up | 05:47:45 - 06:08:13 | 6334 |
| Greenville | 05:58:05 | -26.8 | Dark | Down | 40.8 | 191.3 | Up | 05:47:51 - 06:08:19 | 6274 |
| Gimple | 05:58:05 | -26.8 | Dark | Down | 40.8 | 191.4 | Up | 05:47:51 - 06:08:19 | 6270 |
| Quincy | 05:58:05 | -27.0 | Dark | Down | 41.0 | 191.3 | Up | 05:47:51 - 06:08:19 | 6260 |
| Portola | 05:58:03 | -27.3 | Dark | Down | 41.1 | 191.9 | Up | 05:47:49 - 06:08:17 | 6230 |
| Reno | 05:58:01 | -27.8 | Dark | Down | 41.2 | 192.8 | Up | 05:47:47 - 06:08:15 | 6182 |
| Carson City | 05:58:01 | -28.1 | Dark | Down | 41.6 | 192.9 | Up | 05:47:47 - 06:08:15 | 6156 |
| Gardnerville | 05:58:03 | -28.3 | Dark | Down | 41.8 | 193.0 | Up | 05:47:49 - 06:08:17 | 6136 |
| Yerington | 05:58:00 | -28.5 | Dark | Down | 41.6 | 193.8 | Up | 05:47:46 - 06:08:14 | 6113 |
| Hawthorne | 05:57:58 | -29.1 | Dark | Down | 42.0 | 194.5 | Up | 05:47:44 - 06:08:12 | 6055 |
| Lee Vining | 05:58:00 | -29.4 | Dark | Down | 42.6 | 194.0 | Up | 05:47:46 - 06:08:14 | 6038 |
| Bishop | 05:57:59 | -30.2 | Dark | Down | 43.1 | 195.1 | Up | 05:47:45 - 06:08:13 | 5960 |
| Beatty | 05:57:54 | -31.3 | Dark | Down | 43.1 | 197.4 | Up | 05:47:40 - 06:08:08 | 5848 |
| Wildwood | 05:58:07 | -32.8 | Dark | Down | 46.2 | 195.8 | Up | 05:47:53 - 06:08:21 | 5726 |
| Laughlin/Bullhead City | 05:57:48 | -33.7 | Dark | Down | 44.2 | 200.8 | Up | 05:47:34 - 06:08:02 | 5612 |
| Idyllwild | 05:57:59 | -34.0 | Dark | Down | 46.1 | 198.4 | Up | 05:47:45 - 06:08:13 | 5606 |
| Patrick | 05:57:44 | -33.8 | Dark | Down | 43.8 | 201.6 | Up | 05:47:30 - 06:07:58 | 5597 |
| Dunrhomin | 05:57:03 | -32.2 | Dark | Down | 36.5 | 210.2 | Up | 05:46:49 - 06:07:17 | 5569 |
| CU-SBO | 05:57:04 | -32.4 | Dark | Down | 36.7 | 210.2 | Up | 05:46:50 - 06:07:18 | 5554 |
| Lake Havasu City | 05:57:47 | -34.4 | Dark | Down | 44.8 | 201.3 | Up | 05:47:33 - 06:08:01 | 5547 |
| Calipatria | 05:57:55 | -35.0 | Dark | Down | 46.4 | 200.3 | Up | 05:47:41 - 06:08:09 | 5499 |
| Yuma | 05:57:52 | -35.8 | Dark | Down | 46.5 | 201.6 | Up | 05:47:38 - 06:08:06 | 5420 |
| George/Scottsdale | 05:57:37 | -36.1 | Dark | Down | 44.7 | 204.8 | Up | 05:47:23 - 06:07:51 | 5364 |
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 552678, (2026/08/11 05:59UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 35.57 131 Nunki 18:55:15.9 -26:17:49 2.0 18.31 164 PPM 202008 18:40:00.4 -07:47:28 5.7 0.69 155 PPM 202020 18:40:48.1 -08:43:08 8.0 0.58 155 PPM 201980 18:38:27.6 -08:23:58 9.4 0.09 155 552678 18:38:48.9 -08:24:38 13.8 155 Positions are for J2000
Event circumstances last updated at 2022/11/04 04:24:11 UT
Marc W. Buie, Southwest Research Institute