Event between 16GR206 and star GA0800:04800408 with event index number of 2166189
Geocentric closest approach at 2028/04/29 09:24:36 UTC
J2000 position of star is 15:32:37.7 -08:52:37
Equinox of date position of star is 15:33:54.0 -08:57:19
Stellar brightness G=11.4,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 137 degrees from the moon.
Moon is 22% illuminated.
Apparent brightness V=22.0
[RECON map]
Object is 19.5 AU from the Sun
and 18.5 AU from the Earth.
Apparent velocity is 21.9
km/sec on the sky relative to the star, or,
5.9 arcsec/hr.
The 1-sigma error in the time of the event is 147 seconds.
The 1-sigma cross-track error in the shadow position is
1911 km.
The sky-plane scale is
13415.7 km/arcsec.
The object has an absolute magnitude Hv=9.1
Diameter=88.3 km assuming a 5% albedo -- 4.1 sec chord
Diameter=36.1 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 16GR206, (2028/04/29 09:25UT) Object RA Dec mag sep mel Antares 16:31:09.0 -26:29:32 0.9 22.12 155 27Bet Lib 15:18:32.2 -09:29:08 2.6 3.89 133 PPM 198725 15:35:58.5 -09:16:36 5.6 0.54 137 PPM 198710 15:35:17.8 -09:31:41 8.3 0.62 137 PPM 198695 15:34:38.1 -09:07:47 9.5 0.20 137 16GR206 15:34:09.6 -08:58:16 11.4 137 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 16.5 km
RECON observability=1.0 and success probability=16.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 09:24:38 | -16.3 | AT | Down | 26.7 | 202.2 | Low | 09:11:51 - 09:37:24 | 2517 |
| Kamloops | 09:25:19 | -21.9 | Dark | Down | 30.2 | 186.5 | Up | 09:12:32 - 09:38:05 | 2247 |
| Kelowna | 09:25:15 | -22.5 | Dark | Down | 31.0 | 187.6 | Up | 09:12:29 - 09:38:02 | 2218 |
| Peachland | 09:25:16 | -22.7 | Dark | Down | 31.1 | 187.2 | Up | 09:12:30 - 09:38:03 | 2207 |
| Summerland | 09:25:15 | -22.8 | Dark | Down | 31.3 | 187.3 | Up | 09:12:29 - 09:38:02 | 2201 |
| Penticton | 09:25:15 | -22.8 | Dark | Down | 31.3 | 187.5 | Up | 09:12:28 - 09:38:01 | 2199 |
| Oliver | 09:25:15 | -23.1 | Dark | Down | 31.7 | 187.5 | Up | 09:12:28 - 09:38:01 | 2179 |
| Anarchist Mountain Observatory | 09:25:14 | -23.2 | Dark | Down | 31.8 | 187.7 | Up | 09:12:28 - 09:38:01 | 2174 |
| Okanogan | 09:25:14 | -23.9 | Dark | Down | 32.5 | 187.5 | Up | 09:12:28 - 09:38:01 | 2133 |
| Brewster | 09:25:15 | -24.2 | Dark | Down | 32.8 | 187.3 | Up | 09:12:28 - 09:38:01 | 2115 |
| Manson/Chelan | 09:25:15 | -24.5 | Dark | Down | 33.0 | 186.9 | Up | 09:12:29 - 09:38:02 | 2097 |
| Victoria | 09:25:27 | -24.7 | Dark | Down | 32.6 | 183.1 | Up | 09:12:40 - 09:38:13 | 2078 |
| Wenatchee | 09:25:16 | -24.9 | Dark | Down | 33.5 | 186.8 | Up | 09:12:29 - 09:38:02 | 2067 |
| Ellensburg | 09:25:16 | -25.4 | Dark | Down | 33.9 | 186.5 | Up | 09:12:29 - 09:38:02 | 2039 |
| Yakima | 09:25:16 | -25.8 | Dark | Down | 34.3 | 186.5 | Up | 09:12:29 - 09:38:02 | 2014 |
| PNWRO | 09:25:09 | -25.8 | Dark | Down | 34.8 | 188.5 | Up | 09:12:23 - 09:37:56 | 2008 |
| Toppenish/White Swan | 09:25:15 | -25.9 | Dark | Down | 34.5 | 186.7 | Up | 09:12:28 - 09:38:01 | 2004 |
| The Dalles | 09:25:17 | -26.8 | Dark | Down | 35.4 | 185.9 | Up | 09:12:30 - 09:38:03 | 1944 |
| Maupin | 09:25:16 | -27.2 | Dark | Down | 35.8 | 186.0 | Up | 09:12:29 - 09:38:02 | 1920 |
| Dunrhomin | 09:24:13 | -25.4 | Dark | Down | 37.3 | 205.9 | Up | 09:11:27 - 09:37:00 | 1867 |
| Sisters | 09:25:16 | -28.2 | Dark | Down | 36.7 | 185.5 | Up | 09:12:30 - 09:38:03 | 1856 |
| Nikitin | 09:24:13 | -25.6 | Dark | Down | 37.5 | 205.9 | Up | 09:11:26 - 09:36:59 | 1854 |
| CU-SBO | 09:24:13 | -25.7 | Dark | Down | 37.6 | 205.9 | Up | 09:11:27 - 09:37:00 | 1849 |
| Bend | 09:25:16 | -28.3 | Dark | Down | 36.9 | 185.8 | Up | 09:12:29 - 09:38:02 | 1846 |
| Oregon Observatory | 09:25:16 | -28.5 | Dark | Down | 37.1 | 185.7 | Up | 09:12:30 - 09:38:03 | 1833 |
| Chiloquin | 09:25:16 | -29.8 | Dark | Down | 38.4 | 185.2 | Up | 09:12:29 - 09:38:02 | 1740 |
| Klamath Falls | 09:25:15 | -30.1 | Dark | Down | 38.8 | 185.4 | Up | 09:12:29 - 09:38:02 | 1718 |
| Cedarville | 09:25:09 | -30.3 | Dark | Down | 39.3 | 187.4 | Up | 09:12:22 - 09:37:55 | 1702 |
| Fall River/Burney | 09:25:13 | -31.1 | Dark | Down | 39.9 | 185.9 | Up | 09:12:27 - 09:38:00 | 1646 |
| Gimple | 09:25:10 | -31.8 | Dark | Down | 40.8 | 186.7 | Up | 09:12:23 - 09:37:56 | 1594 |
| Greenville | 09:25:11 | -31.8 | Dark | Down | 40.8 | 186.6 | Up | 09:12:24 - 09:37:57 | 1592 |
| Portola | 09:25:08 | -31.9 | Dark | Down | 41.0 | 187.2 | Up | 09:12:22 - 09:37:55 | 1579 |
| Quincy | 09:25:10 | -32.0 | Dark | Down | 41.0 | 186.6 | Up | 09:12:23 - 09:37:56 | 1578 |
| Reno | 09:25:06 | -32.0 | Dark | Down | 41.2 | 188.1 | Up | 09:12:19 - 09:37:52 | 1573 |
| Carson City | 09:25:05 | -32.3 | Dark | Down | 41.6 | 188.2 | Up | 09:12:19 - 09:37:52 | 1548 |
| Yerington | 09:25:02 | -32.3 | Dark | Down | 41.7 | 189.0 | Up | 09:12:16 - 09:37:49 | 1546 |
| Gardnerville | 09:25:04 | -32.5 | Dark | Down | 41.8 | 188.3 | Up | 09:12:18 - 09:37:51 | 1532 |
| Hawthorne | 09:25:00 | -32.5 | Dark | Down | 42.1 | 189.8 | Up | 09:12:13 - 09:37:46 | 1523 |
| Lee Vining | 09:25:01 | -33.2 | Dark | Down | 42.7 | 189.2 | Up | 09:12:14 - 09:37:47 | 1474 |
| Bishop | 09:24:57 | -33.4 | Dark | Down | 43.2 | 190.3 | Up | 09:12:11 - 09:37:44 | 1444 |
| Beatty | 09:24:51 | -33.2 | Dark | Down | 43.4 | 192.5 | Up | 09:12:05 - 09:37:38 | 1442 |
| Patrick | 09:24:37 | -33.3 | Dark | Down | 44.3 | 196.7 | Up | 09:11:51 - 09:37:24 | 1386 |
| Laughlin/Bullhead City | 09:24:40 | -33.8 | Dark | Down | 44.7 | 195.8 | Up | 09:11:54 - 09:37:27 | 1354 |
| Lake Havasu City | 09:24:38 | -34.3 | Dark | Down | 45.3 | 196.3 | Up | 09:11:51 - 09:37:24 | 1308 |
| George/Scottsdale | 09:24:27 | -33.8 | Dark | Down | 45.4 | 199.9 | Up | 09:11:40 - 09:37:13 | 1295 |
| Idyllwild | 09:24:46 | -36.0 | Dark | Down | 46.5 | 193.2 | Up | 09:12:00 - 09:37:33 | 1206 |
| Wildwood | 09:24:55 | -36.4 | Dark | Down | 46.5 | 190.6 | Up | 09:12:09 - 09:37:42 | 1195 |
| Calipatria | 09:24:41 | -36.0 | Dark | Down | 46.9 | 195.0 | Up | 09:11:54 - 09:37:27 | 1180 |
| Yuma | 09:24:37 | -36.0 | Dark | Down | 47.1 | 196.4 | Up | 09:11:50 - 09:37:23 | 1164 |
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 16GR206, (2028/04/29 09:25UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.12 155 27Bet Lib 15:17:00.3 -09:22:59 2.6 3.89 133 PPM 198725 15:34:26.4 -09:11:01 5.6 0.54 137 PPM 198710 15:33:45.6 -09:26:04 8.3 0.62 137 PPM 198695 15:33:06.1 -09:02:09 9.5 0.20 137 16GR206 15:32:37.7 -08:52:37 11.4 137 Positions are for J2000
Event circumstances last updated at 2023/07/07 03:09:09 UT
Marc W. Buie, Southwest Research Institute