Event between (523689) 14DL143 and star GA0780:04412377 with event index number of 2621510
Geocentric closest approach at 2028/04/18 05:14:28 UTC
J2000 position of star is 13:38:33.3 -11:44:29
Equinox of date position of star is 13:39:51.5 -11:51:55
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 108 degrees from the moon.
Moon is 36% illuminated.
Apparent brightness V=21.8
[RECON map]
Object is 37.1 AU from the Sun
and 36.1 AU from the Earth.
Apparent velocity is 24.4
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
1966 km.
The sky-plane scale is
26191.2 km/arcsec.
The object has an absolute magnitude Hv=6.2
Diameter=335.7 km assuming a 5% albedo -- 14.2 sec chord
Diameter=137.1 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 523689, (2028/04/18 05:13UT) Object RA Dec mag sep mel Spica 13:26:41.3 -11:18:29 1.0 3.33 112 PPM 227511 13:36:11.0 -13:21:31 6.4 1.75 109 PPM 227711 13:44:06.1 -12:13:44 7.8 1.05 107 PPM 227619 13:40:30.0 -12:04:17 9.3 0.22 108 523689 13:40:03.7 -11:53:04 16.2 108 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 17.5 km
RECON observability=0.9 and success probability=17.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 05:16:47 | -22.9 | Dark | Down | 22.8 | 153.9 | Low | 05:07:45 - 05:25:48 | 3186 |
| Kamloops | 05:17:20 | -18.8 | Dark | Down | 19.0 | 139.5 | Really Low | 05:08:18 - 05:26:21 | 2716 |
| Kelowna | 05:17:19 | -19.8 | Dark | Down | 20.0 | 140.2 | Low | 05:08:17 - 05:26:20 | 2682 |
| Peachland | 05:17:20 | -19.8 | Dark | Down | 20.0 | 139.9 | Really Low | 05:08:18 - 05:26:21 | 2667 |
| Summerland | 05:17:19 | -19.9 | Dark | Down | 20.1 | 139.9 | Low | 05:08:18 - 05:26:21 | 2659 |
| Penticton | 05:17:20 | -20.0 | Dark | Down | 20.2 | 140.0 | Low | 05:08:18 - 05:26:21 | 2657 |
| Oliver | 05:17:20 | -20.3 | Dark | Down | 20.5 | 139.9 | Low | 05:08:18 - 05:26:21 | 2632 |
| Anarchist Mountain Observatory | 05:17:20 | -20.5 | Dark | Down | 20.7 | 140.1 | Low | 05:08:19 - 05:26:22 | 2625 |
| Okanogan | 05:17:21 | -20.9 | Dark | Down | 21.1 | 139.7 | Low | 05:08:20 - 05:26:23 | 2572 |
| Brewster | 05:17:22 | -21.0 | Dark | Down | 21.2 | 139.5 | Low | 05:08:21 - 05:26:24 | 2547 |
| Manson/Chelan | 05:17:23 | -21.0 | Dark | Down | 21.2 | 139.1 | Low | 05:08:22 - 05:26:25 | 2521 |
| Wenatchee | 05:17:23 | -21.2 | Dark | Down | 21.5 | 138.8 | Low | 05:08:22 - 05:26:25 | 2482 |
| Victoria | 05:17:29 | -19.0 | Dark | Down | 19.3 | 136.2 | Really Low | 05:08:28 - 05:26:31 | 2478 |
| Ellensburg | 05:17:25 | -21.4 | Dark | Down | 21.7 | 138.5 | Low | 05:08:23 - 05:26:26 | 2445 |
| PNWRO | 05:17:22 | -22.9 | Dark | Down | 23.2 | 139.7 | Low | 05:08:21 - 05:26:24 | 2418 |
| Yakima | 05:17:25 | -21.7 | Dark | Down | 22.0 | 138.3 | Low | 05:08:24 - 05:26:27 | 2414 |
| Dunrhomin | 05:16:51 | -33.4 | Dark | Down | 33.5 | 151.8 | Up | 05:07:49 - 05:25:52 | 2407 |
| Toppenish/White Swan | 05:17:25 | -22.0 | Dark | Down | 22.3 | 138.4 | Low | 05:08:24 - 05:26:27 | 2402 |
| Nikitin | 05:16:51 | -33.6 | Dark | Down | 33.7 | 151.7 | Up | 05:07:49 - 05:25:52 | 2393 |
| CU-SBO | 05:16:51 | -33.6 | Dark | Down | 33.7 | 151.6 | Up | 05:07:49 - 05:25:52 | 2385 |
| The Dalles | 05:17:28 | -22.1 | Dark | Down | 22.5 | 137.5 | Low | 05:08:27 - 05:26:30 | 2320 |
| Maupin | 05:17:29 | -22.5 | Dark | Down | 22.8 | 137.5 | Low | 05:08:27 - 05:26:30 | 2291 |
| Sisters | 05:17:30 | -22.9 | Dark | Down | 23.3 | 136.8 | Low | 05:08:28 - 05:26:31 | 2209 |
| Bend | 05:17:30 | -23.2 | Dark | Down | 23.6 | 136.9 | Low | 05:08:28 - 05:26:31 | 2198 |
| Oregon Observatory | 05:17:30 | -23.2 | Dark | Down | 23.6 | 136.8 | Low | 05:08:29 - 05:26:32 | 2180 |
| Chiloquin | 05:17:33 | -23.9 | Dark | Down | 24.4 | 136.0 | Low | 05:08:32 - 05:26:35 | 2063 |
| Klamath Falls | 05:17:33 | -24.2 | Dark | Down | 24.7 | 136.0 | Low | 05:08:31 - 05:26:34 | 2038 |
| Cedarville | 05:17:29 | -25.5 | Dark | Down | 26.0 | 137.2 | Low | 05:08:28 - 05:26:31 | 2032 |
| Fall River/Burney | 05:17:33 | -25.2 | Dark | Down | 25.7 | 135.9 | Low | 05:08:31 - 05:26:34 | 1954 |
| Gimple | 05:17:33 | -26.1 | Dark | Down | 26.6 | 136.1 | Low | 05:08:31 - 05:26:34 | 1896 |
| Greenville | 05:17:32 | -26.1 | Dark | Down | 26.6 | 136.0 | Low | 05:08:31 - 05:26:34 | 1893 |
| Portola | 05:17:31 | -26.6 | Dark | Down | 27.1 | 136.4 | Low | 05:08:30 - 05:26:33 | 1882 |
| Reno | 05:17:30 | -27.1 | Dark | Down | 27.6 | 136.9 | Low | 05:08:29 - 05:26:32 | 1880 |
| Quincy | 05:17:32 | -26.2 | Dark | Down | 26.7 | 136.0 | Low | 05:08:31 - 05:26:34 | 1877 |
| Yerington | 05:17:29 | -27.9 | Dark | Down | 28.4 | 137.3 | Low | 05:08:27 - 05:26:30 | 1856 |
| Carson City | 05:17:30 | -27.4 | Dark | Down | 27.9 | 136.8 | Low | 05:08:29 - 05:26:32 | 1851 |
| Hawthorne | 05:17:28 | -28.5 | Dark | Down | 29.0 | 137.6 | Low | 05:08:26 - 05:26:29 | 1834 |
| Gardnerville | 05:17:30 | -27.6 | Dark | Down | 28.1 | 136.7 | Low | 05:08:29 - 05:26:32 | 1832 |
| Lee Vining | 05:17:30 | -28.6 | Dark | Down | 29.1 | 136.9 | Low | 05:08:28 - 05:26:31 | 1771 |
| Beatty | 05:17:24 | -30.7 | Dark | Down | 31.2 | 138.7 | Up | 05:08:23 - 05:26:26 | 1760 |
| Bishop | 05:17:28 | -29.4 | Dark | Down | 30.0 | 137.4 | Low | 05:08:26 - 05:26:29 | 1744 |
| Patrick | 05:17:17 | -33.3 | Dark | Down | 33.8 | 140.9 | Up | 05:08:15 - 05:26:18 | 1732 |
| Laughlin/Bullhead City | 05:17:19 | -33.1 | Dark | Down | 33.6 | 140.1 | Up | 05:08:17 - 05:26:20 | 1687 |
| George/Scottsdale | 05:17:12 | -35.7 | Dark | Down | 36.2 | 142.2 | Up | 05:08:10 - 05:26:13 | 1658 |
| Lake Havasu City | 05:17:18 | -33.8 | Dark | Down | 34.3 | 140.1 | Up | 05:08:17 - 05:26:20 | 1638 |
| Idyllwild | 05:17:25 | -33.0 | Dark | Down | 33.6 | 137.4 | Up | 05:08:23 - 05:26:26 | 1490 |
| Calipatria | 05:17:22 | -34.1 | Dark | Down | 34.7 | 138.3 | Up | 05:08:20 - 05:26:23 | 1478 |
| Yuma | 05:17:20 | -34.9 | Dark | Down | 35.5 | 139.0 | Up | 05:08:18 - 05:26:21 | 1472 |
| Wildwood | 05:17:30 | -31.6 | Dark | Down | 32.2 | 135.8 | Up | 05:08:29 - 05:26:32 | 1456 |
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 523689, (2028/04/18 05:13UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 3.33 112 PPM 227511 13:34:40.4 -13:12:52 6.4 1.75 109 PPM 227711 13:42:35.6 -12:05:13 7.8 1.05 107 PPM 227619 13:38:59.6 -11:55:42 9.3 0.22 108 523689 13:38:33.3 -11:44:29 16.2 108 Positions are for J2000
Event circumstances last updated at 2024/06/23 21:33:10 UT
Marc W. Buie, Southwest Research Institute