Event between (523620) 07RH283 and star GA1180:02256324 with event index number of 2544332
Geocentric closest approach at 2028/12/11 03:01:12 UTC
J2000 position of star is 06:11:53.3 +29:16:20
Equinox of date position of star is 06:13:26.9 +29:15:53
Stellar brightness G=14.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 102 degrees from the moon.
Moon is 29% illuminated.
Apparent brightness V=21.8
[RECON map]
Object is 21.0 AU from the Sun
and 20.0 AU from the Earth.
Apparent velocity is 24.5
km/sec on the sky relative to the star, or,
6.1 arcsec/hr.
The 1-sigma error in the time of the event is 135 seconds.
The 1-sigma cross-track error in the shadow position is
1485 km.
The sky-plane scale is
14511.1 km/arcsec.
The object has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 4.7 sec chord
Diameter=46.9 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 523620, (2028/12/11 03:01UT) Object RA Dec mag sep mel Pollux 07:47:05.3 +27:57:14 1.1 20.50 82 Alnath 05:28:07.4 +28:37:46 1.6 9.99 112 44Kap Aur 06:17:13.4 +29:29:06 4.3 0.79 102 PPM 095567 06:13:05.2 +28:53:56 8.0 0.39 103 PPM 095609 06:14:42.5 +29:22:40 9.1 0.24 102 523620 06:13:44.0 +29:15:47 14.6 102 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 22.5 km
RECON observability=1.0 and success probability=1.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 03:03:54 | -28.4 | Dark | Down | 24.0 | 72.5 | Low | 02:52:07 - 03:15:41 | 5490 |
| Victoria | 03:04:01 | -26.3 | Dark | Down | 21.5 | 69.6 | Low | 02:52:14 - 03:15:48 | 5464 |
| Peachland | 03:03:57 | -28.8 | Dark | Down | 24.1 | 72.5 | Low | 02:52:10 - 03:15:44 | 5411 |
| Kelowna | 03:03:56 | -29.0 | Dark | Down | 24.3 | 72.8 | Low | 02:52:09 - 03:15:43 | 5407 |
| Summerland | 03:03:57 | -28.8 | Dark | Down | 24.1 | 72.5 | Low | 02:52:10 - 03:15:44 | 5398 |
| Penticton | 03:03:57 | -28.9 | Dark | Down | 24.2 | 72.6 | Low | 02:52:10 - 03:15:44 | 5390 |
| Oliver | 03:03:59 | -28.9 | Dark | Down | 24.1 | 72.4 | Low | 02:52:12 - 03:15:46 | 5367 |
| Anarchist Mountain Observatory | 03:03:59 | -29.0 | Dark | Down | 24.2 | 72.5 | Low | 02:52:12 - 03:15:46 | 5350 |
| Okanogan | 03:04:02 | -28.8 | Dark | Down | 23.8 | 72.1 | Low | 02:52:15 - 03:15:49 | 5315 |
| Brewster | 03:04:03 | -28.7 | Dark | Down | 23.6 | 71.8 | Low | 02:52:16 - 03:15:50 | 5305 |
| Manson/Chelan | 03:04:04 | -28.4 | Dark | Down | 23.3 | 71.5 | Low | 02:52:17 - 03:15:51 | 5305 |
| Wenatchee | 03:04:05 | -28.3 | Dark | Down | 23.1 | 71.2 | Low | 02:52:18 - 03:15:52 | 5280 |
| Ellensburg | 03:04:06 | -28.1 | Dark | Down | 22.8 | 70.9 | Low | 02:52:19 - 03:15:53 | 5261 |
| Yakima | 03:04:07 | -28.1 | Dark | Down | 22.6 | 70.7 | Low | 02:52:20 - 03:15:54 | 5234 |
| Toppenish/White Swan | 03:04:09 | -28.2 | Dark | Down | 22.7 | 70.8 | Low | 02:52:22 - 03:15:56 | 5213 |
| The Dalles | 03:04:11 | -27.6 | Dark | Down | 21.9 | 70.0 | Low | 02:52:24 - 03:15:58 | 5191 |
| Maupin | 03:04:13 | -27.6 | Dark | Down | 21.8 | 69.9 | Low | 02:52:26 - 03:16:00 | 5158 |
| PNWRO | 03:04:10 | -29.2 | Dark | Down | 23.6 | 71.6 | Low | 02:52:23 - 03:15:57 | 5132 |
| Sisters | 03:04:15 | -27.2 | Dark | Down | 21.2 | 69.3 | Low | 02:52:28 - 03:16:02 | 5118 |
| Sleaford | 03:03:42 | -37.3 | Dark | Down | 33.1 | 83.5 | Up | 02:51:55 - 03:15:29 | 5097 |
| Bend | 03:04:16 | -27.3 | Dark | Down | 21.3 | 69.3 | Low | 02:52:29 - 03:16:03 | 5091 |
| Oregon Observatory | 03:04:17 | -27.2 | Dark | Down | 21.2 | 69.2 | Low | 02:52:30 - 03:16:04 | 5084 |
| Chiloquin | 03:04:21 | -26.8 | Dark | Down | 20.4 | 68.5 | Low | 02:52:34 - 03:16:08 | 5008 |
| Klamath Falls | 03:04:22 | -26.8 | Dark | Down | 20.3 | 68.4 | Low | 02:52:35 - 03:16:09 | 4981 |
| Fall River/Burney | 03:04:25 | -26.9 | Dark | Down | 20.2 | 68.2 | Low | 02:52:38 - 03:16:12 | 4880 |
| Cedarville | 03:04:24 | -27.9 | Dark | Down | 21.2 | 69.1 | Low | 02:52:37 - 03:16:11 | 4865 |
| Greenville | 03:04:28 | -27.1 | Dark | Down | 20.2 | 68.2 | Low | 02:52:41 - 03:16:15 | 4795 |
| Gimple | 03:04:28 | -27.2 | Dark | Down | 20.2 | 68.2 | Low | 02:52:41 - 03:16:15 | 4791 |
| Quincy | 03:04:29 | -27.1 | Dark | Down | 20.1 | 68.1 | Low | 02:52:42 - 03:16:16 | 4780 |
| Portola | 03:04:29 | -27.4 | Dark | Down | 20.4 | 68.3 | Low | 02:52:42 - 03:16:16 | 4751 |
| Reno | 03:04:30 | -27.9 | Dark | Down | 20.8 | 68.6 | Low | 02:52:43 - 03:16:17 | 4703 |
| Carson City | 03:04:31 | -27.9 | Dark | Down | 20.7 | 68.5 | Low | 02:52:44 - 03:16:18 | 4675 |
| Gardnerville | 03:04:32 | -27.9 | Dark | Down | 20.6 | 68.4 | Low | 02:52:45 - 03:16:19 | 4655 |
| Yerington | 03:04:31 | -28.3 | Dark | Down | 21.0 | 68.7 | Low | 02:52:44 - 03:16:18 | 4633 |
| Hawthorne | 03:04:33 | -28.7 | Dark | Down | 21.3 | 68.9 | Low | 02:52:46 - 03:16:20 | 4575 |
| Lee Vining | 03:04:34 | -28.2 | Dark | Down | 20.7 | 68.4 | Low | 02:52:47 - 03:16:21 | 4553 |
| Bishop | 03:04:36 | -28.7 | Dark | Down | 21.0 | 68.6 | Low | 02:52:49 - 03:16:23 | 4475 |
| Beatty | 03:04:36 | -30.0 | Dark | Down | 22.1 | 69.2 | Low | 02:52:49 - 03:16:23 | 4367 |
| Wildwood | 03:04:45 | -28.1 | Dark | Down | 19.7 | 67.4 | Really Low | 02:52:58 - 03:16:32 | 4222 |
| Dunrhomin | 03:04:19 | -39.1 | Dark | Down | 31.7 | 76.7 | Up | 02:52:32 - 03:16:06 | 4155 |
| Nikitin | 03:04:20 | -39.1 | Dark | Down | 31.6 | 76.6 | Up | 02:52:33 - 03:16:07 | 4140 |
| CU-SBO | 03:04:20 | -39.1 | Dark | Down | 31.5 | 76.5 | Up | 02:52:33 - 03:16:07 | 4138 |
| Laughlin/Bullhead City | 03:04:40 | -31.5 | Dark | Down | 23.1 | 69.6 | Low | 02:52:53 - 03:16:27 | 4130 |
| Patrick | 03:04:39 | -32.1 | Dark | Down | 23.8 | 70.0 | Low | 02:52:52 - 03:16:26 | 4119 |
| Idyllwild | 03:04:45 | -29.6 | Dark | Down | 21.0 | 68.1 | Low | 02:52:58 - 03:16:32 | 4107 |
| Lake Havasu City | 03:04:42 | -31.6 | Dark | Down | 23.1 | 69.4 | Low | 02:52:55 - 03:16:29 | 4062 |
| Calipatria | 03:04:46 | -30.4 | Dark | Down | 21.7 | 68.4 | Low | 02:52:59 - 03:16:33 | 4002 |
| Yuma | 03:04:47 | -31.1 | Dark | Down | 22.2 | 68.6 | Low | 02:53:00 - 03:16:34 | 3925 |
| George/Scottsdale | 03:04:43 | -33.6 | Dark | Down | 24.8 | 70.1 | Low | 02:52:56 - 03:16:30 | 3887 |
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 523620, (2028/12/11 03:01UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 20.50 82 Alnath 05:26:17.6 +28:36:23 1.6 9.99 112 44Kap Aur 06:15:22.6 +29:29:47 4.3 0.79 102 PPM 095567 06:11:14.8 +28:54:26 8.0 0.39 103 PPM 095609 06:12:51.7 +29:23:15 9.1 0.24 102 523620 06:11:53.3 +29:16:20 14.6 102 Positions are for J2000
Event circumstances last updated at 2024/06/25 21:30:36 UT
Marc W. Buie, Southwest Research Institute