Event between (79983) 99DF9 and star GA0780:04280833 with event index number of 2400772
Geocentric closest approach at 2028/03/13 12:53:21 UTC
J2000 position of star is 12:45:55.0 -11:57:50
Equinox of date position of star is 12:47:10.7 -12:05:44
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 13 degrees from the moon.
Moon is 91% illuminated.
Apparent brightness V=22.3
[RECON map]
Object is 41.2 AU from the Sun
and 40.3 AU from the Earth.
Apparent velocity is 22.8
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 112 seconds.
The 1-sigma cross-track error in the shadow position is
2167 km.
The sky-plane scale is
29197.8 km/arcsec.
The object has an absolute magnitude Hv=6.1
Diameter=361.4 km assuming a 5% albedo -- 16.1 sec chord
Diameter=147.5 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 79983, (2028/03/13 12:54UT) Object RA Dec mag sep mel Spica 13:26:41.0 -11:18:27 1.0 9.65 5 4Gam Crv 12:17:15.7 -17:41:54 2.6 9.17 20 PPM 226198 12:42:44.0 -13:10:06 6.0 1.55 14 PPM 226326 12:47:58.8 -11:57:57 7.3 0.21 13 PPM 226313 12:47:32.0 -12:00:47 9.9 0.11 13 79983 12:47:23.3 -12:07:03 15.8 13 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=0.0 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) |
| Sleaford | 12:52:02 | -5.3 | CT | Up | 3.9 | 244.8 | Really Low | 12:42:15 - 13:01:50 | -1637 |
| Kamloops | 12:52:21 | -14.3 | AT | Up | 12.3 | 233.0 | Really Low | 12:42:33 - 13:02:08 | -1668 |
| Kelowna | 12:52:15 | -14.0 | AT | Up | 12.4 | 233.9 | Really Low | 12:42:28 - 13:02:03 | -1694 |
| Peachland | 12:52:15 | -14.2 | AT | Up | 12.6 | 233.7 | Really Low | 12:42:28 - 13:02:03 | -1699 |
| Summerland | 12:52:15 | -14.2 | AT | Up | 12.6 | 233.8 | Really Low | 12:42:28 - 13:02:03 | -1704 |
| Penticton | 12:52:14 | -14.1 | AT | Up | 12.6 | 233.9 | Really Low | 12:42:27 - 13:02:02 | -1706 |
| Oliver | 12:52:13 | -14.2 | AT | Up | 12.8 | 234.0 | Really Low | 12:42:26 - 13:02:01 | -1719 |
| Anarchist Mountain Observatory | 12:52:12 | -14.1 | AT | Up | 12.8 | 234.1 | Really Low | 12:42:25 - 13:02:00 | -1724 |
| Okanogan | 12:52:11 | -14.4 | AT | Up | 13.3 | 234.1 | Really Low | 12:42:23 - 13:01:58 | -1750 |
| Victoria | 12:52:19 | -16.8 | AT | Up | 15.2 | 230.8 | Really Low | 12:42:31 - 13:02:06 | -1755 |
| Brewster | 12:52:09 | -14.6 | AT | Up | 13.6 | 233.9 | Really Low | 12:42:22 - 13:01:57 | -1761 |
| Manson/Chelan | 12:52:10 | -14.9 | AT | Up | 13.9 | 233.7 | Really Low | 12:42:22 - 13:01:57 | -1769 |
| Wenatchee | 12:52:08 | -15.1 | AT | Up | 14.3 | 233.6 | Really Low | 12:42:21 - 13:01:56 | -1788 |
| Ellensburg | 12:52:07 | -15.3 | AT | Up | 14.6 | 233.5 | Really Low | 12:42:20 - 13:01:55 | -1805 |
| Yakima | 12:52:06 | -15.4 | AT | Up | 14.9 | 233.6 | Really Low | 12:42:18 - 13:01:53 | -1822 |
| Toppenish/White Swan | 12:52:04 | -15.4 | AT | Up | 14.9 | 233.8 | Really Low | 12:42:17 - 13:01:52 | -1831 |
| PNWRO | 12:52:00 | -14.4 | AT | Up | 14.3 | 235.1 | Really Low | 12:42:13 - 13:01:48 | -1843 |
| The Dalles | 12:52:04 | -16.1 | AT | Up | 15.8 | 233.3 | Really Low | 12:42:16 - 13:01:51 | -1866 |
| Maupin | 12:52:02 | -16.1 | AT | Up | 16.0 | 233.5 | Really Low | 12:42:15 - 13:01:50 | -1884 |
| Sisters | 12:52:00 | -16.7 | AT | Up | 16.9 | 233.3 | Really Low | 12:42:13 - 13:01:48 | -1924 |
| Bend | 12:51:59 | -16.5 | AT | Up | 16.8 | 233.5 | Really Low | 12:42:12 - 13:01:47 | -1934 |
| Oregon Observatory | 12:51:58 | -16.7 | AT | Up | 17.0 | 233.5 | Really Low | 12:42:11 - 13:01:46 | -1942 |
| Chiloquin | 12:51:55 | -17.3 | AT | Up | 18.1 | 233.4 | Really Low | 12:42:07 - 13:01:42 | -2005 |
| Klamath Falls | 12:51:53 | -17.3 | AT | Up | 18.2 | 233.6 | Really Low | 12:42:06 - 13:01:41 | -2022 |
| Cedarville | 12:51:48 | -16.3 | AT | Up | 17.7 | 235.1 | Really Low | 12:42:00 - 13:01:35 | -2052 |
| Fall River/Burney | 12:51:48 | -17.3 | AT | Up | 18.7 | 234.2 | Really Low | 12:42:01 - 13:01:36 | -2080 |
| Gimple | 12:51:44 | -17.1 | AT | Up | 18.9 | 234.9 | Really Low | 12:41:57 - 13:01:32 | -2125 |
| Greenville | 12:51:45 | -17.1 | AT | Up | 19.0 | 234.8 | Really Low | 12:41:57 - 13:01:32 | -2125 |
| Quincy | 12:51:44 | -17.2 | AT | Up | 19.1 | 234.9 | Really Low | 12:41:57 - 13:01:32 | -2136 |
| Dunrhomin | 12:51:14 | -5.2 | CT | Up | 8.5 | 246.4 | Really Low | 12:41:26 - 13:01:01 | -2139 |
| Portola | 12:51:43 | -16.8 | AT | Up | 18.9 | 235.3 | Really Low | 12:41:55 - 13:01:30 | -2141 |
| Nikitin | 12:51:13 | -5.3 | CT | Up | 8.6 | 246.4 | Really Low | 12:41:25 - 13:01:00 | -2148 |
| CU-SBO | 12:51:13 | -5.3 | CT | Up | 8.7 | 246.3 | Really Low | 12:41:25 - 13:01:00 | -2151 |
| Reno | 12:51:40 | -16.4 | AT | Up | 18.6 | 235.8 | Really Low | 12:41:53 - 13:01:28 | -2154 |
| Carson City | 12:51:39 | -16.5 | AT | Up | 18.8 | 236.0 | Really Low | 12:41:51 - 13:01:26 | -2173 |
| Yerington | 12:51:36 | -16.0 | AT | Up | 18.5 | 236.5 | Really Low | 12:41:49 - 13:01:24 | -2182 |
| Gardnerville | 12:51:38 | -16.5 | AT | Up | 18.9 | 236.1 | Really Low | 12:41:51 - 13:01:26 | -2186 |
| Hawthorne | 12:51:34 | -15.7 | AT | Up | 18.4 | 237.0 | Really Low | 12:41:46 - 13:01:21 | -2206 |
| Lee Vining | 12:51:32 | -16.2 | AT | Up | 19.0 | 236.8 | Really Low | 12:41:45 - 13:01:20 | -2238 |
| Bishop | 12:51:29 | -15.7 | AT | Up | 18.9 | 237.5 | Really Low | 12:41:41 - 13:01:16 | -2272 |
| Beatty | 12:51:24 | -14.5 | AT | Up | 18.0 | 238.9 | Really Low | 12:41:37 - 13:01:12 | -2296 |
| Patrick | 12:51:12 | -12.4 | AT | Up | 16.8 | 241.3 | Really Low | 12:41:25 - 13:01:00 | -2384 |
| Laughlin/Bullhead City | 12:51:13 | -13.0 | AT | Up | 17.4 | 240.9 | Really Low | 12:41:26 - 13:01:01 | -2399 |
| Lake Havasu City | 12:51:11 | -12.9 | AT | Up | 17.6 | 241.2 | Really Low | 12:41:23 - 13:00:58 | -2440 |
| Wildwood | 12:51:19 | -16.4 | AT | Up | 20.8 | 238.3 | Low | 12:41:31 - 13:01:06 | -2468 |
| Idyllwild | 12:51:13 | -14.9 | AT | Up | 19.7 | 239.8 | Really Low | 12:41:25 - 13:01:00 | -2487 |
| George/Scottsdale | 12:51:03 | -10.9 | NT | Up | 16.1 | 243.1 | Really Low | 12:41:16 - 13:00:51 | -2492 |
| Calipatria | 12:51:09 | -14.0 | AT | Up | 19.1 | 240.8 | Really Low | 12:41:22 - 13:00:57 | -2526 |
| Yuma | 12:51:05 | -13.3 | AT | Up | 18.7 | 241.5 | Really Low | 12:41:18 - 13:00:53 | -2554 |
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 79983, (2028/03/13 12:54UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 9.65 5 4Gam Crv 12:15:48.1 -17:32:30 2.6 9.17 20 PPM 226198 12:41:15.7 -13:00:51 6.0 1.55 14 PPM 226326 12:46:30.5 -11:48:44 7.3 0.21 13 PPM 226313 12:46:03.7 -11:51:34 9.9 0.11 13 79983 12:45:55.0 -11:57:50 15.8 13 Positions are for J2000
Event circumstances last updated at 2024/03/07 04:17:27 UT
Marc W. Buie, Southwest Research Institute