Event between (612953) 05ER318 and star GA0740:05112874 with event index number of 2819157
Geocentric closest approach at 2028/02/27 13:17:06 UTC
J2000 position of star is 13:04:46.2 -15:15:01
Equinox of date position of star is 13:05:57.4 -15:22:12
Stellar brightness G=14.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 161 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=23.0
[RECON map]
TNO is 30.8 AU from the Sun
and 30.1 AU from the Earth.
The TNO is moving 16.5
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 452 seconds.
The 1-sigma cross-track error in the shadow position is
4389 km.
The sky-plane scale is
21803.6 km/arcsec.
The TNO has an absolute magnitude Hv=8.0
Diameter=150.0 km assuming a 5% albedo -- 9.1 sec chord
Diameter=61.2 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 4:3E
Star training set for 612953, (2028/02/27 13:17UT) Object RA Dec mag sep mel Spica 13:26:40.9 -11:18:26 1.0 6.44 158 53 Vir 13:13:33.7 -16:20:57 4.8 2.00 159 PPM 226807 13:07:56.4 -15:03:58 7.3 0.53 160 PPM 226767 13:06:45.6 -15:26:22 9.5 0.13 160 612953 13:06:15.7 -15:24:03 14.8 160 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
2.0 sigma about the mid-time.
The median site spacing is 21.2 km
RECON observability=0.4 and success probability=1.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 13:15:36 | -15.8 | AT | Down | 15.7 | 219.3 | Really Low | 13:00:36 - 13:30:36 | 11211 |
| Sleaford | 13:15:00 | -6.8 | NT | Down | 8.3 | 231.7 | Really Low | 13:00:00 - 13:30:00 | 11204 |
| Kelowna | 13:15:31 | -15.3 | AT | Down | 15.9 | 220.3 | Really Low | 13:00:31 - 13:30:31 | 11177 |
| Peachland | 13:15:31 | -15.5 | AT | Down | 16.1 | 220.0 | Really Low | 13:00:31 - 13:30:31 | 11173 |
| Summerland | 13:15:29 | -15.4 | AT | Down | 16.2 | 220.1 | Really Low | 13:00:29 - 13:30:29 | 11166 |
| Penticton | 13:15:29 | -15.4 | AT | Down | 16.2 | 220.3 | Really Low | 13:00:29 - 13:30:29 | 11163 |
| Oliver | 13:15:27 | -15.4 | AT | Down | 16.5 | 220.3 | Really Low | 13:00:27 - 13:30:27 | 11148 |
| Anarchist Mountain Observatory | 13:15:26 | -15.3 | AT | Down | 16.5 | 220.5 | Really Low | 13:00:26 - 13:30:26 | 11141 |
| Tonasket | 13:15:26 | -15.4 | AT | Down | 16.8 | 220.5 | Really Low | 13:00:26 - 13:30:26 | 11128 |
| Victoria | 13:15:39 | -18.0 | AT | Down | 18.6 | 217.0 | Really Low | 13:00:39 - 13:30:39 | 11125 |
| Okanogan | 13:15:24 | -15.5 | AT | Down | 17.1 | 220.4 | Really Low | 13:00:24 - 13:30:24 | 11113 |
| Brewster | 13:15:25 | -15.7 | AT | Down | 17.4 | 220.3 | Really Low | 13:00:25 - 13:30:25 | 11102 |
| Manson/Chelan | 13:15:24 | -15.9 | AT | Down | 17.7 | 220.0 | Really Low | 13:00:24 - 13:30:24 | 11093 |
| Wenatchee | 13:15:23 | -16.1 | AT | Down | 18.2 | 220.0 | Really Low | 13:00:23 - 13:30:23 | 11072 |
| Ellensburg | 13:15:24 | -16.3 | AT | Down | 18.6 | 219.9 | Really Low | 13:00:24 - 13:30:24 | 11054 |
| Yakima | 13:15:21 | -16.3 | AT | Down | 18.9 | 219.9 | Really Low | 13:00:21 - 13:30:21 | 11035 |
| Toppenish/White Swan | 13:15:20 | -16.2 | AT | Down | 19.0 | 220.1 | Really Low | 13:00:20 - 13:30:20 | 11024 |
| PNWRO | 13:15:12 | -15.2 | AT | Down | 18.6 | 221.5 | Really Low | 13:00:12 - 13:30:12 | 11004 |
| Goldendale | 13:15:19 | -16.6 | AT | Down | 19.6 | 219.9 | Really Low | 13:00:19 - 13:30:19 | 10999 |
| The Dalles | 13:15:21 | -16.8 | AT | Down | 20.0 | 219.6 | Really Low | 13:00:21 - 13:30:21 | 10988 |
| Maupin | 13:15:17 | -16.8 | AT | Down | 20.2 | 219.8 | Low | 13:00:17 - 13:30:17 | 10968 |
| Sisters | 13:15:17 | -17.2 | AT | Down | 21.1 | 219.5 | Low | 13:00:17 - 13:30:17 | 10925 |
| Bend | 13:15:15 | -17.1 | AT | Down | 21.2 | 219.8 | Low | 13:00:15 - 13:30:15 | 10913 |
| Oregon Observatory | 13:15:16 | -17.2 | AT | Down | 21.4 | 219.7 | Low | 13:00:16 - 13:30:16 | 10904 |
| North Lake | 13:15:10 | -16.9 | AT | Down | 21.7 | 220.4 | Low | 13:00:10 - 13:30:10 | 10870 |
| Chiloquin | 13:15:12 | -17.6 | AT | Down | 22.6 | 219.7 | Low | 13:00:12 - 13:30:12 | 10835 |
| Klamath Falls | 13:15:11 | -17.6 | AT | Down | 22.8 | 219.8 | Low | 13:00:11 - 13:30:11 | 10817 |
| Lakeview | 13:15:05 | -16.6 | AT | Down | 22.2 | 221.1 | Low | 13:00:05 - 13:30:05 | 10812 |
| Cedarville | 13:15:03 | -16.5 | AT | Down | 22.6 | 221.5 | Low | 13:00:03 - 13:30:03 | 10776 |
| Fall River/Burney | 13:15:06 | -17.4 | AT | Down | 23.6 | 220.5 | Low | 13:00:06 - 13:30:06 | 10751 |
| Susanville | 13:15:01 | -16.9 | AT | Down | 23.7 | 221.3 | Low | 13:00:01 - 13:30:01 | 10714 |
| Greenville | 13:15:01 | -17.1 | AT | Down | 24.0 | 221.1 | Low | 13:00:01 - 13:30:01 | 10698 |
| Gimple | 13:15:01 | -17.1 | AT | Down | 24.0 | 221.2 | Low | 13:00:01 - 13:30:01 | 10698 |
| Quincy | 13:15:00 | -17.2 | AT | Down | 24.2 | 221.2 | Low | 13:00:00 - 13:30:00 | 10687 |
| Portola | 13:14:58 | -16.8 | AT | Down | 24.1 | 221.7 | Low | 12:59:58 - 13:29:58 | 10679 |
| Reno | 13:14:53 | -16.3 | AT | Down | 23.9 | 222.3 | Low | 12:59:53 - 13:29:53 | 10662 |
| Carson City | 13:14:54 | -16.3 | AT | Down | 24.2 | 222.4 | Low | 12:59:54 - 13:29:54 | 10641 |
| Yerington | 13:14:51 | -15.9 | AT | Down | 24.0 | 223.0 | Low | 12:59:51 - 13:29:51 | 10628 |
| Gardnerville | 13:14:52 | -16.3 | AT | Down | 24.3 | 222.5 | Low | 12:59:52 - 13:29:52 | 10626 |
| Dunrhomin | 13:14:05 | -5.3 | CT | Down | 15.2 | 234.1 | Really Low | 12:59:05 - 13:29:05 | 10624 |
| CU-SBO | 13:14:04 | -5.3 | CT | Down | 15.4 | 234.0 | Really Low | 12:59:04 - 13:29:04 | 10610 |
| Hawthorne | 13:14:46 | -15.5 | AT | Down | 24.1 | 223.6 | Low | 12:59:46 - 13:29:46 | 10598 |
| Tonopah | 13:14:40 | -14.4 | AT | Down | 23.6 | 225.0 | Low | 12:59:40 - 13:29:40 | 10566 |
| Lee Vining | 13:14:47 | -15.9 | AT | Down | 24.7 | 223.4 | Low | 12:59:47 - 13:29:47 | 10566 |
| Bishop | 13:14:42 | -15.3 | AT | Down | 24.8 | 224.2 | Low | 12:59:42 - 13:29:42 | 10526 |
| Beatty | 13:14:33 | -14.1 | AT | Down | 24.2 | 225.7 | Low | 12:59:33 - 13:29:33 | 10492 |
| Indian Springs | 13:14:27 | -13.2 | AT | Down | 23.8 | 226.7 | Low | 12:59:27 - 13:29:27 | 10467 |
| Henderson | 13:14:24 | -12.6 | AT | Down | 23.8 | 227.5 | Low | 12:59:24 - 13:29:24 | 10429 |
| Patrick | 13:14:16 | -11.7 | NT | Down | 23.5 | 228.6 | Low | 12:59:16 - 13:29:16 | 10383 |
| Laughlin/Bullhead City | 13:14:19 | -12.3 | AT | Down | 24.1 | 228.1 | Low | 12:59:19 - 13:29:19 | 10370 |
| Kingman/Dolan Springs | 13:14:16 | -11.9 | NT | Down | 23.8 | 228.5 | Low | 12:59:16 - 13:29:16 | 10369 |
| Mohave Valley | 13:14:18 | -12.3 | AT | Down | 24.3 | 228.2 | Low | 12:59:18 - 13:29:18 | 10352 |
| Lake Havasu City | 13:14:14 | -12.1 | AT | Down | 24.4 | 228.5 | Low | 12:59:14 - 13:29:14 | 10324 |
| Wildwood | 13:14:31 | -15.6 | AT | Down | 27.2 | 225.1 | Low | 12:59:31 - 13:29:31 | 10314 |
| Parker | 13:14:14 | -12.1 | AT | Down | 24.7 | 228.6 | Low | 12:59:14 - 13:29:14 | 10300 |
| Idyllwild | 13:14:23 | -14.0 | AT | Down | 26.4 | 226.8 | Low | 12:59:23 - 13:29:23 | 10284 |
| George/Scottsdale | 13:14:03 | -10.1 | NT | Down | 23.4 | 230.7 | Low | 12:59:03 - 13:29:03 | 10258 |
| Calipatria | 13:14:15 | -13.1 | AT | Down | 26.1 | 228.0 | Low | 12:59:15 - 13:29:15 | 10236 |
| Yuma | 13:14:11 | -12.3 | AT | Down | 25.8 | 228.9 | Low | 12:59:11 - 13:29:11 | 10202 |
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 612953, (2028/02/27 13:17UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 6.44 158 53 Vir 13:12:03.7 -16:12:01 4.8 2.00 159 PPM 226807 13:06:26.9 -14:54:58 7.3 0.53 160 PPM 226767 13:05:16.0 -15:17:21 9.5 0.13 160 612953 13:04:46.2 -15:15:01 14.8 161 Positions are for J2000
Event circumstances last updated at 2022/05/22 23:13:49 UT
Marc W. Buie, Southwest Research Institute