Event between (553137) 11BM170 and star GA1120:03374063 with event index number of 2347835
Geocentric closest approach at 2028/04/27 11:46:05 UTC
J2000 position of star is 12:36:11.5 +23:40:19
Equinox of date position of star is 12:37:24.1 +23:32:17
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 105 degrees from the moon.
Moon is 8% illuminated.
Apparent brightness V=22.1
[RECON map]
Object is 40.5 AU from the Sun
and 39.8 AU from the Earth.
Apparent velocity is 22.3
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 98 seconds.
The 1-sigma cross-track error in the shadow position is
3955 km.
The sky-plane scale is
28864.0 km/arcsec.
The object has an absolute magnitude Hv=5.9
Diameter=400.0 km assuming a 5% albedo -- 18.1 sec chord
Diameter=163.3 km assuming a 30% albedo -- 7.4 sec chord
Dynamical classification is SCATNEAR
Star training set for 553137, (2028/04/27 11:47UT) Object RA Dec mag sep mel Arcturus 14:16:57.6 +19:02:18 0.0 23.54 125 Vindemiatrix 13:03:35.3 +10:48:27 2.8 14.14 118 22 Com 12:34:58.8 +24:07:38 6.2 0.86 104 PPM 101977 12:34:09.6 +23:15:47 7.8 0.83 105 PPM 102021 12:38:06.9 +23:28:40 9.2 0.12 105 553137 12:37:35.9 +23:30:58 15.2 106 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 13.0 km
RECON observability=0.2 and success probability=0.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 11:42:55 | -0.4 | Sun up | Down | 14.5 | 290.0 | Really Low | 11:34:14 - 11:51:36 | -1326 |
| Kamloops | 11:42:52 | -9.0 | NT | Down | 22.9 | 280.0 | Low | 11:34:11 - 11:51:33 | -1824 |
| Kelowna | 11:42:49 | -9.0 | NT | Down | 22.2 | 280.9 | Low | 11:34:08 - 11:51:30 | -1862 |
| Peachland | 11:42:49 | -9.2 | NT | Down | 22.3 | 280.8 | Low | 11:34:08 - 11:51:30 | -1878 |
| Summerland | 11:42:48 | -9.2 | NT | Down | 22.2 | 280.9 | Low | 11:34:07 - 11:51:29 | -1887 |
| Penticton | 11:42:48 | -9.2 | NT | Down | 22.2 | 281.0 | Low | 11:34:07 - 11:51:29 | -1889 |
| Oliver | 11:42:47 | -9.4 | NT | Down | 22.1 | 281.1 | Low | 11:34:06 - 11:51:28 | -1917 |
| Anarchist Mountain Observatory | 11:42:46 | -9.4 | NT | Down | 21.9 | 281.3 | Low | 11:34:05 - 11:51:27 | -1924 |
| Okanogan | 11:42:44 | -9.9 | NT | Down | 22.0 | 281.4 | Low | 11:34:03 - 11:51:25 | -1981 |
| Brewster | 11:42:43 | -10.2 | NT | Down | 22.0 | 281.4 | Low | 11:34:02 - 11:51:24 | -2008 |
| Manson/Chelan | 11:42:43 | -10.5 | NT | Down | 22.2 | 281.2 | Low | 11:34:02 - 11:51:24 | -2035 |
| Victoria | 11:42:47 | -11.8 | NT | Down | 24.5 | 278.7 | Low | 11:34:06 - 11:51:28 | -2076 |
| Wenatchee | 11:42:41 | -10.9 | NT | Down | 22.3 | 281.3 | Low | 11:34:00 - 11:51:22 | -2078 |
| Ellensburg | 11:42:40 | -11.2 | NT | Down | 22.3 | 281.3 | Low | 11:33:59 - 11:51:21 | -2118 |
| PNWRO | 11:42:36 | -10.8 | NT | Down | 21.0 | 282.8 | Low | 11:33:55 - 11:51:17 | -2149 |
| Yakima | 11:42:39 | -11.5 | NT | Down | 22.3 | 281.4 | Low | 11:33:58 - 11:51:20 | -2151 |
| Toppenish/White Swan | 11:42:38 | -11.5 | NT | Down | 22.1 | 281.6 | Low | 11:33:57 - 11:51:19 | -2164 |
| Dunrhomin | 11:42:16 | -4.8 | CT | Down | 9.8 | 292.8 | Really Low | 11:33:35 - 11:50:57 | -2167 |
| Nikitin | 11:42:16 | -4.9 | CT | Down | 9.7 | 292.8 | Really Low | 11:33:35 - 11:50:57 | -2182 |
| CU-SBO | 11:42:15 | -5.0 | CT | Down | 9.8 | 292.8 | Really Low | 11:33:34 - 11:50:56 | -2190 |
| The Dalles | 11:42:35 | -12.4 | AT | Down | 22.5 | 281.4 | Low | 11:33:54 - 11:51:16 | -2251 |
| Maupin | 11:42:34 | -12.6 | AT | Down | 22.3 | 281.7 | Low | 11:33:53 - 11:51:15 | -2282 |
| Sisters | 11:42:32 | -13.4 | AT | Down | 22.5 | 281.7 | Low | 11:33:51 - 11:51:13 | -2370 |
| Bend | 11:42:30 | -13.4 | AT | Down | 22.3 | 282.0 | Low | 11:33:49 - 11:51:11 | -2382 |
| Oregon Observatory | 11:42:30 | -13.6 | AT | Down | 22.4 | 281.9 | Low | 11:33:49 - 11:51:11 | -2401 |
| Chiloquin | 11:42:27 | -14.6 | AT | Down | 22.4 | 282.2 | Low | 11:33:46 - 11:51:08 | -2526 |
| Klamath Falls | 11:42:26 | -14.7 | AT | Down | 22.3 | 282.4 | Low | 11:33:45 - 11:51:07 | -2553 |
| Cedarville | 11:42:22 | -14.1 | AT | Down | 20.9 | 283.6 | Low | 11:33:41 - 11:51:03 | -2562 |
| Fall River/Burney | 11:42:22 | -15.2 | AT | Down | 21.7 | 283.1 | Low | 11:33:41 - 11:51:03 | -2643 |
| Gimple | 11:42:19 | -15.4 | AT | Down | 21.1 | 283.7 | Low | 11:33:38 - 11:51:00 | -2705 |
| Greenville | 11:42:19 | -15.4 | AT | Down | 21.2 | 283.7 | Low | 11:33:38 - 11:51:00 | -2708 |
| Portola | 11:42:17 | -15.3 | AT | Down | 20.8 | 284.1 | Low | 11:33:36 - 11:50:58 | -2721 |
| Reno | 11:42:17 | -15.0 | AT | Down | 20.2 | 284.5 | Low | 11:33:36 - 11:50:58 | -2723 |
| Quincy | 11:42:18 | -15.5 | AT | Down | 21.1 | 283.7 | Low | 11:33:37 - 11:50:59 | -2725 |
| Yerington | 11:42:14 | -14.9 | AT | Down | 19.6 | 285.1 | Really Low | 11:33:33 - 11:50:55 | -2750 |
| Carson City | 11:42:15 | -15.2 | AT | Down | 20.1 | 284.7 | Low | 11:33:34 - 11:50:56 | -2753 |
| Hawthorne | 11:42:13 | -14.8 | AT | Down | 19.1 | 285.5 | Really Low | 11:33:32 - 11:50:54 | -2773 |
| Gardnerville | 11:42:15 | -15.3 | AT | Down | 20.0 | 284.8 | Low | 11:33:34 - 11:50:56 | -2774 |
| Lee Vining | 11:42:11 | -15.4 | AT | Down | 19.3 | 285.5 | Really Low | 11:33:30 - 11:50:52 | -2839 |
| Beatty | 11:42:08 | -14.4 | AT | Down | 17.2 | 287.0 | Really Low | 11:33:27 - 11:50:49 | -2853 |
| Bishop | 11:42:09 | -15.3 | AT | Down | 18.6 | 286.0 | Really Low | 11:33:28 - 11:50:50 | -2868 |
| Patrick | 11:42:03 | -13.1 | AT | Down | 14.5 | 288.9 | Really Low | 11:33:22 - 11:50:44 | -2883 |
| Laughlin/Bullhead City | 11:42:02 | -13.7 | AT | Down | 15.0 | 288.6 | Really Low | 11:33:21 - 11:50:43 | -2930 |
| George/Scottsdale | 11:41:58 | -12.4 | AT | Down | 12.4 | 290.3 | Really Low | 11:33:17 - 11:50:39 | -2961 |
| Lake Havasu City | 11:42:00 | -13.9 | AT | Down | 14.6 | 288.9 | Really Low | 11:33:19 - 11:50:41 | -2981 |
| Idyllwild | 11:42:00 | -16.0 | AT | Down | 16.2 | 288.0 | Really Low | 11:33:19 - 11:50:41 | -3136 |
| Calipatria | 11:41:57 | -15.4 | AT | Down | 15.1 | 288.7 | Really Low | 11:33:16 - 11:50:38 | -3149 |
| Yuma | 11:41:57 | -15.0 | AT | Down | 14.3 | 289.2 | Really Low | 11:33:16 - 11:50:38 | -3156 |
| Wildwood | 11:42:01 | -17.2 | AT | Down | 17.8 | 286.9 | Really Low | 11:33:20 - 11:50:42 | -3171 |
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 553137, (2028/04/27 11:47UT) Object RA Dec mag sep mel Arcturus 14:15:37.8 +19:10:08 0.0 23.54 125 Vindemiatrix 13:02:10.2 +10:57:33 2.8 14.14 118 22 Com 12:33:34.2 +24:16:59 6.2 0.86 104 PPM 101977 12:32:44.9 +23:25:09 7.8 0.83 105 PPM 102021 12:36:42.5 +23:38:00 9.2 0.12 105 553137 12:36:11.5 +23:40:19 15.2 105 Positions are for J2000
Event circumstances last updated at 2024/05/05 03:39:56 UT
Marc W. Buie, Southwest Research Institute