Event between (523751) 14UU224 and star GA0960:00985523 with event index number of 2362974
Geocentric closest approach at 2025/12/15 03:27:10 UTC
J2000 position of star is 05:50:35.6 +07:54:18
Equinox of date position of star is 05:51:53.9 +07:54:37
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 120 degrees from the moon.
Moon is 20% illuminated.
Apparent brightness V=22.0
[RECON map]
Object is 30.8 AU from the Sun
and 29.9 AU from the Earth.
Apparent velocity is 24.2
km/sec on the sky relative to the star, or,
4.0 arcsec/hr.
The 1-sigma error in the time of the event is 68 seconds.
The 1-sigma cross-track error in the shadow position is
1098 km.
The sky-plane scale is
21651.6 km/arcsec.
The object has an absolute magnitude Hv=7.1
Diameter=228.0 km assuming a 5% albedo -- 9.4 sec chord
Diameter=93.1 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E
Star training set for 523751, (2025/12/15 03:21UT) Object RA Dec mag sep mel Betelgeuse 05:56:34.7 +07:24:35 0.4 1.24 118 Bellatrix 05:26:31.5 +06:22:16 1.6 6.51 125 52 Ori 05:49:23.9 +06:27:40 5.5 1.59 120 PPM 149553 05:52:31.8 +08:06:44 8.5 0.24 120 PPM 149560 05:52:44.2 +07:57:35 9.9 0.19 119 523751 05:52:00.2 +07:54:38 16.8 119 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 0.0 km
RECON observability=0.3 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 03:29:44 | -32.4 | Dark | Down | 17.8 | 99.4 | Really Low | 03:23:36 - 03:35:53 | 9169 |
| Sleaford | 03:29:23 | -41.0 | Dark | Down | 26.0 | 112.2 | Low | 03:23:14 - 03:35:31 | 9135 |
| Kelowna | 03:29:46 | -33.0 | Dark | Down | 18.5 | 99.9 | Really Low | 03:23:38 - 03:35:55 | 9102 |
| Peachland | 03:29:47 | -32.8 | Dark | Down | 18.3 | 99.6 | Really Low | 03:23:38 - 03:35:55 | 9097 |
| Summerland | 03:29:47 | -32.9 | Dark | Down | 18.4 | 99.6 | Really Low | 03:23:38 - 03:35:55 | 9085 |
| Penticton | 03:29:47 | -33.0 | Dark | Down | 18.5 | 99.7 | Really Low | 03:23:39 - 03:35:56 | 9079 |
| Oliver | 03:29:48 | -33.0 | Dark | Down | 18.5 | 99.6 | Really Low | 03:23:40 - 03:35:57 | 9053 |
| Victoria | 03:29:53 | -30.5 | Dark | Down | 16.1 | 96.4 | Really Low | 03:23:45 - 03:36:02 | 9043 |
| Anarchist Mountain Observatory | 03:29:49 | -33.1 | Dark | Down | 18.7 | 99.7 | Really Low | 03:23:40 - 03:35:57 | 9039 |
| Okanogan | 03:29:51 | -33.0 | Dark | Down | 18.7 | 99.3 | Really Low | 03:23:42 - 03:35:59 | 8993 |
| Brewster | 03:29:52 | -32.9 | Dark | Down | 18.6 | 99.1 | Really Low | 03:23:44 - 03:36:01 | 8974 |
| Manson/Chelan | 03:29:53 | -32.6 | Dark | Down | 18.4 | 98.7 | Really Low | 03:23:44 - 03:36:01 | 8962 |
| Wenatchee | 03:29:55 | -32.5 | Dark | Down | 18.3 | 98.4 | Really Low | 03:23:46 - 03:36:03 | 8928 |
| Ellensburg | 03:29:56 | -32.4 | Dark | Down | 18.2 | 98.1 | Really Low | 03:23:47 - 03:36:04 | 8899 |
| Yakima | 03:29:57 | -32.4 | Dark | Down | 18.3 | 98.0 | Really Low | 03:23:49 - 03:36:06 | 8868 |
| Toppenish/White Swan | 03:29:58 | -32.5 | Dark | Down | 18.4 | 98.0 | Really Low | 03:23:49 - 03:36:06 | 8849 |
| PNWRO | 03:29:58 | -33.5 | Dark | Down | 19.5 | 99.0 | Really Low | 03:23:50 - 03:36:07 | 8805 |
| The Dalles | 03:30:01 | -31.9 | Dark | Down | 18.0 | 97.2 | Really Low | 03:23:53 - 03:36:10 | 8797 |
| Maupin | 03:30:03 | -32.0 | Dark | Down | 18.1 | 97.1 | Really Low | 03:23:54 - 03:36:11 | 8763 |
| Sisters | 03:30:06 | -31.6 | Dark | Down | 17.9 | 96.5 | Really Low | 03:23:58 - 03:36:15 | 8699 |
| Bend | 03:30:06 | -31.8 | Dark | Down | 18.1 | 96.6 | Really Low | 03:23:57 - 03:36:14 | 8677 |
| Oregon Observatory | 03:30:07 | -31.7 | Dark | Down | 18.0 | 96.5 | Really Low | 03:23:58 - 03:36:15 | 8665 |
| Chiloquin | 03:30:12 | -31.3 | Dark | Down | 17.9 | 95.8 | Really Low | 03:24:03 - 03:36:20 | 8562 |
| Klamath Falls | 03:30:13 | -31.4 | Dark | Down | 18.0 | 95.7 | Really Low | 03:24:04 - 03:36:21 | 8533 |
| Cedarville | 03:30:14 | -32.5 | Dark | Down | 19.3 | 96.6 | Really Low | 03:24:05 - 03:36:22 | 8457 |
| Fall River/Burney | 03:30:16 | -31.6 | Dark | Down | 18.4 | 95.6 | Really Low | 03:24:08 - 03:36:25 | 8430 |
| Greenville | 03:30:18 | -31.8 | Dark | Down | 18.8 | 95.6 | Really Low | 03:24:09 - 03:36:26 | 8348 |
| Gimple | 03:30:17 | -31.9 | Dark | Down | 18.9 | 95.7 | Really Low | 03:24:09 - 03:36:26 | 8347 |
| Quincy | 03:30:19 | -31.8 | Dark | Down | 18.9 | 95.5 | Really Low | 03:24:10 - 03:36:27 | 8331 |
| Portola | 03:30:18 | -32.2 | Dark | Down | 19.2 | 95.8 | Really Low | 03:24:09 - 03:36:26 | 8315 |
| Reno | 03:30:18 | -32.7 | Dark | Down | 19.8 | 96.2 | Really Low | 03:24:09 - 03:36:26 | 8284 |
| Carson City | 03:30:19 | -32.6 | Dark | Down | 19.8 | 96.0 | Really Low | 03:24:11 - 03:36:28 | 8253 |
| Gardnerville | 03:30:20 | -32.7 | Dark | Down | 19.9 | 96.0 | Really Low | 03:24:12 - 03:36:29 | 8231 |
| Yerington | 03:30:19 | -33.1 | Dark | Down | 20.3 | 96.4 | Low | 03:24:10 - 03:36:27 | 8228 |
| Hawthorne | 03:30:20 | -33.5 | Dark | Down | 20.8 | 96.6 | Low | 03:24:12 - 03:36:29 | 8181 |
| Dunrhomin | 03:29:54 | -43.8 | Dark | Down | 30.6 | 106.9 | Up | 03:23:45 - 03:36:02 | 8177 |
| Nikitin | 03:29:55 | -43.8 | Dark | Down | 30.6 | 106.8 | Up | 03:23:47 - 03:36:04 | 8161 |
| CU-SBO | 03:29:55 | -43.8 | Dark | Down | 30.6 | 106.7 | Up | 03:23:47 - 03:36:04 | 8157 |
| Lee Vining | 03:30:22 | -33.1 | Dark | Down | 20.5 | 96.0 | Low | 03:24:14 - 03:36:31 | 8138 |
| Bishop | 03:30:23 | -33.6 | Dark | Down | 21.1 | 96.3 | Low | 03:24:14 - 03:36:31 | 8076 |
| Beatty | 03:30:21 | -34.9 | Dark | Down | 22.5 | 97.2 | Low | 03:24:13 - 03:36:30 | 8014 |
| Patrick | 03:30:22 | -37.1 | Dark | Down | 25.0 | 98.4 | Low | 03:24:13 - 03:36:30 | 7843 |
| Laughlin/Bullhead City | 03:30:23 | -36.5 | Dark | Down | 24.5 | 97.8 | Low | 03:24:15 - 03:36:32 | 7829 |
| Wildwood | 03:30:31 | -33.1 | Dark | Down | 21.3 | 94.9 | Low | 03:24:23 - 03:36:40 | 7781 |
| Lake Havasu City | 03:30:25 | -36.6 | Dark | Down | 24.8 | 97.7 | Low | 03:24:16 - 03:36:33 | 7764 |
| Idyllwild | 03:30:29 | -34.6 | Dark | Down | 22.9 | 95.9 | Low | 03:24:21 - 03:36:38 | 7724 |
| George/Scottsdale | 03:30:23 | -38.6 | Dark | Down | 26.9 | 98.8 | Low | 03:24:14 - 03:36:31 | 7661 |
| Calipatria | 03:30:30 | -35.5 | Dark | Down | 24.0 | 96.3 | Low | 03:24:22 - 03:36:39 | 7651 |
| Yuma | 03:30:29 | -36.2 | Dark | Down | 24.7 | 96.7 | Low | 03:24:21 - 03:36:38 | 7599 |
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 523751, (2025/12/15 03:21UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 1.24 118 Bellatrix 05:25:07.8 +06:20:58 1.6 6.51 125 52 Ori 05:48:00.2 +06:27:15 5.5 1.59 120 PPM 149553 05:51:07.1 +08:06:25 8.5 0.24 120 PPM 149560 05:51:19.5 +07:57:17 9.9 0.19 119 523751 05:50:35.6 +07:54:18 16.8 120 Positions are for J2000
Event circumstances last updated at 2024/01/08 05:18:17 UT
Marc W. Buie, Southwest Research Institute