Event between (532184) 13OR11 and star GA1140:00561090 with event index number of 2449137
Geocentric closest approach at 2025/12/09 03:19:18 UTC
J2000 position of star is 03:55:40.8 +24:00:32
Equinox of date position of star is 03:57:07.5 +24:04:41
Stellar brightness G=13.0,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 72 degrees from the moon.
Moon is 77% illuminated.
Apparent brightness V=22.8
[RECON map]
Object is 35.3 AU from the Sun
and 34.3 AU from the Earth.
Apparent velocity is 23.7
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 102 seconds.
The 1-sigma cross-track error in the shadow position is
1880 km.
The sky-plane scale is
24891.8 km/arcsec.
The object has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 8.9 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
Star training set for 532184, (2025/12/09 03:21UT) Object RA Dec mag sep mel Aldebaran 04:37:24.7 +16:33:34 0.8 12.05 65 44Zet Per 03:55:46.1 +31:57:31 2.8 7.88 71 33 Tau 03:58:36.4 +23:14:56 6.0 0.89 72 PPM 093123 03:59:54.1 +24:09:13 7.6 0.61 72 PPM 093060 03:56:34.7 +24:01:56 9.7 0.16 73 532184 03:57:13.8 +24:04:59 13.0 72 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 28.1 km
RECON observability=1.0 and success probability=3.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 03:21:12 | -31.2 | Dark | Down | 42.9 | 104.9 | Up | 03:12:14 - 03:30:10 | 5373 |
| Victoria | 03:21:24 | -29.2 | Dark | Down | 41.4 | 100.3 | Up | 03:12:26 - 03:30:22 | 5295 |
| Kelowna | 03:21:12 | -31.8 | Dark | Down | 43.6 | 105.0 | Up | 03:12:14 - 03:30:10 | 5284 |
| Peachland | 03:21:14 | -31.6 | Dark | Down | 43.5 | 104.6 | Up | 03:12:16 - 03:30:12 | 5284 |
| Summerland | 03:21:13 | -31.7 | Dark | Down | 43.6 | 104.5 | Up | 03:12:15 - 03:30:11 | 5270 |
| Penticton | 03:21:14 | -31.7 | Dark | Down | 43.7 | 104.6 | Up | 03:12:16 - 03:30:12 | 5262 |
| Oliver | 03:21:15 | -31.7 | Dark | Down | 43.7 | 104.3 | Up | 03:12:17 - 03:30:13 | 5234 |
| Anarchist Mountain Observatory | 03:21:15 | -31.9 | Dark | Down | 43.9 | 104.3 | Up | 03:12:17 - 03:30:13 | 5215 |
| Okanogan | 03:21:18 | -31.7 | Dark | Down | 43.9 | 103.5 | Up | 03:12:20 - 03:30:16 | 5170 |
| Brewster | 03:21:19 | -31.6 | Dark | Down | 43.9 | 103.1 | Up | 03:12:21 - 03:30:17 | 5154 |
| Manson/Chelan | 03:21:20 | -31.4 | Dark | Down | 43.7 | 102.5 | Up | 03:12:22 - 03:30:18 | 5148 |
| Wenatchee | 03:21:22 | -31.3 | Dark | Down | 43.7 | 102.0 | Up | 03:12:24 - 03:30:20 | 5115 |
| Sleaford | 03:20:38 | -39.8 | Dark | Up | 50.5 | 121.2 | Up | 03:11:40 - 03:29:36 | 5108 |
| Ellensburg | 03:21:24 | -31.1 | Dark | Down | 43.6 | 101.4 | Up | 03:12:26 - 03:30:22 | 5089 |
| Yakima | 03:21:25 | -31.1 | Dark | Down | 43.7 | 101.0 | Up | 03:12:27 - 03:30:23 | 5056 |
| Toppenish/White Swan | 03:21:25 | -31.2 | Dark | Down | 43.8 | 100.9 | Up | 03:12:27 - 03:30:23 | 5033 |
| The Dalles | 03:21:29 | -30.6 | Dark | Down | 43.4 | 99.6 | Up | 03:12:31 - 03:30:27 | 4994 |
| PNWRO | 03:21:23 | -32.2 | Dark | Down | 44.9 | 101.9 | Up | 03:12:25 - 03:30:21 | 4957 |
| Maupin | 03:21:31 | -30.7 | Dark | Down | 43.6 | 99.3 | Up | 03:12:33 - 03:30:29 | 4957 |
| Sisters | 03:21:34 | -30.3 | Dark | Down | 43.4 | 98.0 | Up | 03:12:36 - 03:30:32 | 4900 |
| Bend | 03:21:34 | -30.5 | Dark | Down | 43.6 | 98.0 | Up | 03:12:36 - 03:30:32 | 4872 |
| Oregon Observatory | 03:21:34 | -30.4 | Dark | Down | 43.5 | 97.8 | Up | 03:12:36 - 03:30:32 | 4861 |
| Chiloquin | 03:21:40 | -30.0 | Dark | Down | 43.4 | 96.2 | Up | 03:12:42 - 03:30:38 | 4764 |
| Klamath Falls | 03:21:41 | -30.0 | Dark | Down | 43.5 | 96.0 | Up | 03:12:43 - 03:30:39 | 4732 |
| Cedarville | 03:21:39 | -31.2 | Dark | Down | 44.8 | 96.5 | Up | 03:12:41 - 03:30:37 | 4619 |
| Fall River/Burney | 03:21:43 | -30.2 | Dark | Down | 43.9 | 95.1 | Up | 03:12:45 - 03:30:41 | 4618 |
| Greenville | 03:21:45 | -30.5 | Dark | Down | 44.3 | 94.6 | Up | 03:12:47 - 03:30:43 | 4524 |
| Gimple | 03:21:45 | -30.6 | Dark | Down | 44.4 | 94.6 | Up | 03:12:47 - 03:30:43 | 4521 |
| Quincy | 03:21:46 | -30.5 | Dark | Down | 44.4 | 94.4 | Up | 03:12:48 - 03:30:44 | 4507 |
| Portola | 03:21:45 | -30.8 | Dark | Down | 44.7 | 94.6 | Up | 03:12:47 - 03:30:43 | 4479 |
| Reno | 03:21:44 | -31.3 | Dark | Down | 45.3 | 94.8 | Up | 03:12:46 - 03:30:42 | 4434 |
| Carson City | 03:21:46 | -31.3 | Dark | Down | 45.3 | 94.4 | Up | 03:12:48 - 03:30:44 | 4401 |
| Gardnerville | 03:21:46 | -31.3 | Dark | Down | 45.4 | 94.2 | Up | 03:12:48 - 03:30:44 | 4378 |
| Yerington | 03:21:45 | -31.8 | Dark | Down | 45.8 | 94.7 | Up | 03:12:47 - 03:30:43 | 4362 |
| Hawthorne | 03:21:45 | -32.1 | Dark | Down | 46.3 | 94.6 | Up | 03:12:47 - 03:30:43 | 4302 |
| Lee Vining | 03:21:47 | -31.7 | Dark | Down | 45.9 | 93.7 | Up | 03:12:49 - 03:30:45 | 4269 |
| Bishop | 03:21:47 | -32.2 | Dark | Down | 46.5 | 93.5 | Up | 03:12:49 - 03:30:45 | 4189 |
| Beatty | 03:21:45 | -33.5 | Dark | Down | 47.9 | 94.1 | Up | 03:12:47 - 03:30:43 | 4090 |
| Dunrhomin | 03:21:07 | -42.4 | Dark | Down | 56.0 | 107.6 | Up | 03:12:09 - 03:30:05 | 4032 |
| Nikitin | 03:21:07 | -42.4 | Dark | Down | 56.1 | 107.3 | Up | 03:12:09 - 03:30:05 | 4015 |
| CU-SBO | 03:21:07 | -42.4 | Dark | Down | 56.0 | 107.1 | Up | 03:12:09 - 03:30:05 | 4012 |
| Wildwood | 03:21:56 | -31.7 | Dark | Down | 46.5 | 90.0 | Up | 03:12:58 - 03:30:54 | 3894 |
| Laughlin/Bullhead City | 03:21:44 | -35.1 | Dark | Down | 49.7 | 93.5 | Up | 03:12:46 - 03:30:42 | 3852 |
| Patrick | 03:21:41 | -35.7 | Dark | Down | 50.3 | 94.3 | Up | 03:12:43 - 03:30:39 | 3851 |
| Idyllwild | 03:21:53 | -33.2 | Dark | Down | 48.1 | 90.6 | Up | 03:12:55 - 03:30:51 | 3793 |
| Lake Havasu City | 03:21:44 | -35.2 | Dark | Down | 50.0 | 92.9 | Up | 03:12:46 - 03:30:42 | 3780 |
| Calipatria | 03:21:51 | -34.1 | Dark | Down | 49.0 | 90.6 | Up | 03:12:53 - 03:30:49 | 3692 |
| George/Scottsdale | 03:21:40 | -37.2 | Dark | Down | 52.0 | 93.5 | Up | 03:12:42 - 03:30:38 | 3620 |
| Yuma | 03:21:50 | -34.8 | Dark | Down | 49.8 | 90.6 | Up | 03:12:52 - 03:30:48 | 3619 |
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 532184, (2025/12/09 03:21UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 12.05 65 44Zet Per 03:54:07.9 +31:53:01 2.8 7.88 71 33 Tau 03:57:03.9 +23:10:32 6.0 0.89 72 PPM 093123 03:58:20.9 +24:04:51 7.6 0.61 72 PPM 093060 03:55:01.7 +23:57:28 9.7 0.16 73 532184 03:55:40.8 +24:00:32 13.0 72 Positions are for J2000
Event circumstances last updated at 2024/03/03 06:09:56 UT
Marc W. Buie, Southwest Research Institute