Event between (459865) 13XZ8 and star GA0720:24290479 with event index number of 1736143
Geocentric closest approach at 2027/08/02 06:36:35 UTC
J2000 position of star is 18:32:51.1 -16:59:46
Equinox of date position of star is 18:34:02.8 -16:58:46
Stellar brightness G=14.1,
use SENSEUP=64
Star is 150 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=20.6
[RECON map]
TNO is 11.3 AU from the Sun
and 10.4 AU from the Earth.
The TNO is moving 16.6
km/sec on the sky relative to the star, or,
7.9 arcsec/hr.
The 1-sigma error in the time of the event is 477 seconds.
The 1-sigma cross-track error in the shadow position is
3653 km.
The sky-plane scale is
7565.2 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=75.9 km assuming a 5% albedo -- 3.6 sec chord
Diameter=31.0 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
Star training set for 459865, (2027/08/02 06:37UT) Object RA Dec mag sep mel Antares 16:31:06.2 -26:29:27 0.9 30.09 122 Nunki 18:56:58.4 -26:15:35 2.0 10.66 155 PPM 234652 18:33:03.3 -18:22:52 5.0 1.45 149 PPM 234690 18:34:37.7 -16:32:15 7.3 0.44 150 PPM 234694 18:34:46.8 -16:49:48 8.7 0.16 150 459865 18:34:27.0 -16:58:25 14.1 150 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
1.9 sigma about the mid-time.
The median site spacing is 12.0 km
RECON observability=1.0 and success probability=4.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Clarence Fulton | 06:35:59 | -19.3 | Dark | Down | 21.9 | 192.5 | Low | 06:20:59 - 06:50:59 | 6436 |
| Kelowna | 06:35:59 | -19.6 | Dark | Down | 22.3 | 192.4 | Low | 06:20:59 - 06:50:59 | 6419 |
| Peachland | 06:36:00 | -19.6 | Dark | Down | 22.5 | 192.1 | Low | 06:21:00 - 06:51:00 | 6415 |
| Summerland | 06:35:59 | -19.8 | Dark | Down | 22.6 | 192.2 | Low | 06:20:59 - 06:50:59 | 6408 |
| Penticton | 06:35:59 | -19.9 | Dark | Down | 22.6 | 192.3 | Low | 06:20:59 - 06:50:59 | 6405 |
| Oliver | 06:35:59 | -20.2 | Dark | Down | 23.0 | 192.3 | Low | 06:20:59 - 06:50:59 | 6389 |
| Anarchist Mountain Observatory | 06:35:57 | -20.4 | Dark | Down | 23.1 | 192.5 | Low | 06:20:57 - 06:50:57 | 6382 |
| Tonasket | 06:35:57 | -20.7 | Dark | Down | 23.4 | 192.5 | Low | 06:20:57 - 06:50:57 | 6368 |
| Victoria | 06:36:14 | -19.8 | Dark | Down | 24.1 | 188.5 | Low | 06:21:14 - 06:51:14 | 6362 |
| Okanogan | 06:35:58 | -20.9 | Dark | Down | 23.8 | 192.4 | Low | 06:20:58 - 06:50:58 | 6352 |
| Brewster | 06:35:58 | -21.1 | Dark | Down | 24.1 | 192.2 | Low | 06:20:58 - 06:50:58 | 6340 |
| Manson/Chelan | 06:36:00 | -21.2 | Dark | Down | 24.3 | 191.8 | Low | 06:21:00 - 06:51:00 | 6331 |
| Entiat | 06:36:00 | -21.4 | Dark | Down | 24.6 | 191.8 | Low | 06:21:00 - 06:51:00 | 6320 |
| Wenatchee | 06:36:00 | -21.6 | Dark | Down | 24.8 | 191.7 | Low | 06:21:00 - 06:51:00 | 6308 |
| Ellensburg | 06:36:00 | -21.9 | Dark | Down | 25.3 | 191.5 | Low | 06:21:00 - 06:51:00 | 6289 |
| Yakima | 06:36:00 | -22.3 | Dark | Down | 25.7 | 191.5 | Low | 06:21:00 - 06:51:00 | 6269 |
| Toppenish/White Swan | 06:35:59 | -22.6 | Dark | Down | 25.9 | 191.7 | Low | 06:20:59 - 06:50:59 | 6258 |
| Pasco | 06:35:54 | -23.0 | Dark | Down | 25.8 | 193.0 | Low | 06:20:54 - 06:50:54 | 6250 |
| PNWRO | 06:35:52 | -23.3 | Dark | Down | 26.0 | 193.3 | Low | 06:20:52 - 06:50:52 | 6238 |
| Goldendale | 06:36:01 | -22.9 | Dark | Down | 26.5 | 191.3 | Low | 06:21:01 - 06:51:01 | 6231 |
| The Dalles | 06:36:02 | -23.0 | Dark | Down | 26.7 | 191.0 | Low | 06:21:02 - 06:51:02 | 6219 |
| Maupin | 06:36:01 | -23.4 | Dark | Down | 27.1 | 191.1 | Low | 06:21:01 - 06:51:01 | 6198 |
| Sisters | 06:36:02 | -24.1 | Dark | Down | 28.0 | 190.7 | Low | 06:21:02 - 06:51:02 | 6153 |
| Redmond | 06:36:01 | -24.2 | Dark | Down | 28.0 | 191.1 | Low | 06:21:01 - 06:51:01 | 6151 |
| Bend | 06:36:01 | -24.4 | Dark | Down | 28.2 | 191.0 | Low | 06:21:01 - 06:51:01 | 6140 |
| Oregon Observatory | 06:36:01 | -24.5 | Dark | Down | 28.4 | 190.9 | Low | 06:21:01 - 06:51:01 | 6131 |
| La Pine/Gilchrist | 06:36:02 | -24.7 | Dark | Down | 28.6 | 190.8 | Low | 06:21:02 - 06:51:02 | 6120 |
| North Lake | 06:35:58 | -25.3 | Dark | Down | 29.0 | 191.5 | Low | 06:20:58 - 06:50:58 | 6096 |
| Paisley | 06:35:56 | -25.9 | Dark | Down | 29.5 | 192.0 | Low | 06:20:56 - 06:50:56 | 6065 |
| Klamath Falls | 06:36:02 | -25.9 | Dark | Down | 30.1 | 190.7 | Up | 06:21:02 - 06:51:02 | 6039 |
| Lakeview | 06:35:55 | -26.4 | Dark | Down | 29.9 | 192.2 | Low | 06:20:55 - 06:50:55 | 6036 |
| Cedarville | 06:35:54 | -27.0 | Dark | Down | 30.6 | 192.5 | Up | 06:20:54 - 06:50:54 | 5998 |
| Fall River/Burney | 06:35:59 | -27.1 | Dark | Down | 31.2 | 191.2 | Up | 06:20:59 - 06:50:59 | 5971 |
| Susanville | 06:35:55 | -27.9 | Dark | Down | 31.7 | 192.1 | Up | 06:20:55 - 06:50:55 | 5933 |
| Greenville | 06:35:56 | -28.0 | Dark | Down | 32.0 | 191.8 | Up | 06:20:56 - 06:50:56 | 5917 |
| Gimple | 06:35:55 | -28.1 | Dark | Down | 32.0 | 191.9 | Up | 06:20:55 - 06:50:55 | 5917 |
| Quincy | 06:35:56 | -28.2 | Dark | Down | 32.2 | 191.8 | Up | 06:20:56 - 06:50:56 | 5905 |
| Portola | 06:35:53 | -28.5 | Dark | Down | 32.3 | 192.4 | Up | 06:20:53 - 06:50:53 | 5897 |
| Reno | 06:35:50 | -28.9 | Dark | Down | 32.4 | 193.1 | Up | 06:20:50 - 06:50:50 | 5880 |
| Carson City | 06:35:49 | -29.3 | Dark | Down | 32.8 | 193.2 | Up | 06:20:49 - 06:50:49 | 5858 |
| Niwot | 06:34:40 | -31.6 | Dark | Down | 28.0 | 208.3 | Low | 06:19:40 - 06:49:40 | 5850 |
| Yerington | 06:35:45 | -29.7 | Dark | Down | 32.9 | 193.9 | Up | 06:20:45 - 06:50:45 | 5845 |
| SwRI | 06:34:41 | -31.7 | Dark | Down | 28.1 | 208.2 | Low | 06:19:41 - 06:49:41 | 5843 |
| Gardnerville | 06:35:49 | -29.5 | Dark | Down | 33.0 | 193.3 | Up | 06:20:49 - 06:50:49 | 5843 |
| Hawthorne | 06:35:43 | -30.2 | Dark | Down | 33.2 | 194.6 | Up | 06:20:43 - 06:50:43 | 5815 |
| Tonopah | 06:35:35 | -31.1 | Dark | Down | 33.4 | 196.2 | Up | 06:20:35 - 06:50:35 | 5783 |
| Lee Vining | 06:35:45 | -30.6 | Dark | Down | 33.9 | 194.1 | Up | 06:20:45 - 06:50:45 | 5781 |
| Bishop | 06:35:40 | -31.4 | Dark | Down | 34.3 | 195.0 | Up | 06:20:40 - 06:50:40 | 5740 |
| Beatty | 06:35:32 | -32.3 | Dark | Down | 34.4 | 196.9 | Up | 06:20:32 - 06:50:32 | 5706 |
| Indian Springs | 06:35:26 | -32.9 | Dark | Down | 34.4 | 198.2 | Up | 06:20:26 - 06:50:26 | 5681 |
| Henderson | 06:35:22 | -33.6 | Dark | Down | 34.8 | 199.0 | Up | 06:20:22 - 06:50:22 | 5643 |
| CPSLO | 06:35:50 | -32.5 | Dark | Down | 36.7 | 192.8 | Up | 06:20:50 - 06:50:50 | 5607 |
| Searchlight/Boulder City | 06:35:21 | -34.2 | Dark | Down | 35.3 | 199.2 | Up | 06:20:21 - 06:50:21 | 5605 |
| Patrick | 06:35:15 | -34.5 | Dark | Down | 35.1 | 200.4 | Up | 06:20:15 - 06:50:15 | 5597 |
| Kingman/Dolan Springs | 06:35:15 | -34.7 | Dark | Down | 35.3 | 200.3 | Up | 06:20:15 - 06:50:15 | 5583 |
| Laughlin/Bullhead City | 06:35:18 | -34.5 | Dark | Down | 35.5 | 199.7 | Up | 06:20:18 - 06:50:18 | 5583 |
| DCO | 06:35:11 | -35.0 | Dark | Down | 35.1 | 201.3 | Up | 06:20:11 - 06:50:11 | 5573 |
| Mohave Valley | 06:35:18 | -34.8 | Dark | Down | 35.7 | 199.8 | Up | 06:20:18 - 06:50:18 | 5564 |
| Lake Havasu City | 06:35:16 | -35.2 | Dark | Down | 36.1 | 200.1 | Up | 06:20:16 - 06:50:16 | 5536 |
| Wildwood | 06:35:38 | -34.3 | Dark | Down | 37.5 | 195.4 | Up | 06:20:38 - 06:50:38 | 5521 |
| Parker | 06:35:16 | -35.6 | Dark | Down | 36.4 | 200.3 | Up | 06:20:16 - 06:50:16 | 5511 |
| Idyllwild | 06:35:29 | -35.2 | Dark | Down | 37.4 | 197.6 | Up | 06:20:29 - 06:50:29 | 5492 |
| Blythe | 06:35:16 | -36.0 | Dark | Down | 37.0 | 200.1 | Up | 06:20:16 - 06:50:16 | 5475 |
| George/Scottsdale | 06:35:03 | -36.6 | Dark | Down | 36.0 | 203.1 | Up | 06:20:03 - 06:50:03 | 5471 |
| Calipatria | 06:35:21 | -36.2 | Dark | Down | 37.7 | 199.1 | Up | 06:20:21 - 06:50:21 | 5444 |
| Yuma | 06:35:16 | -36.8 | Dark | Down | 37.8 | 200.3 | Up | 06:20:16 - 06:50:16 | 5410 |
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 459865, (2027/08/02 06:37UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 30.09 122 Nunki 18:55:15.9 -26:17:49 2.0 10.66 155 PPM 234652 18:31:26.3 -18:24:10 5.0 1.45 149 PPM 234690 18:33:02.1 -16:33:37 7.3 0.44 150 PPM 234694 18:33:11.0 -16:51:10 8.7 0.16 150 459865 18:32:51.1 -16:59:46 14.1 150 Positions are for J2000
Event circumstances last updated at 2020/08/15 00:52:44 UT
Marc W. Buie, Southwest Research Institute