Event between (523644) 10VX11 and star GA0900:01543306 with event index number of 1657316
Geocentric closest approach at 2027/01/19 04:11:09 UTC
J2000 position of star is 06:34:24.7 +01:18:41
Equinox of date position of star is 06:35:29.4 +01:17:37
Stellar brightness G=15.7,
use SENSEUP=128
Star is 38 degrees from the moon.
Moon is 84% illuminated.
TNO apparent brightness V=24.6
[RECON map]
TNO is 28.2 AU from the Sun
and 27.3 AU from the Earth.
The TNO is moving 22.7
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 294 seconds.
The 1-sigma cross-track error in the shadow position is
2179 km.
The sky-plane scale is
19829.4 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=316.2 km assuming a 5% albedo -- 2.7 sec chord
Diameter=129.1 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 523644, (2027/01/19 04:11UT) Object RA Dec mag sep mel Betelgeuse 05:56:38.2 +07:24:35 0.4 11.52 27 Alhena 06:39:16.4 +16:22:26 1.9 15.11 30 PPM 150810 06:36:39.5 +00:52:00 5.7 0.47 38 PPM 150790 06:36:04.0 +01:42:17 7.5 0.42 38 PPM 150737 06:34:30.1 +01:15:04 8.7 0.33 38 523644 06:35:48.7 +01:17:18 15.7 38 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
3.1 sigma about the mid-time.
The median site spacing is 20.1 km
RECON observability=1.0 and success probability=14.5%
| 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 | 04:13:46 | -35.5 | Dark | Up | 32.3 | 135.8 | Up | 03:58:46 - 04:28:46 | 3216 |
| Kelowna | 04:13:48 | -35.5 | Dark | Up | 32.5 | 135.5 | Up | 03:58:48 - 04:28:48 | 3181 |
| Peachland | 04:13:48 | -35.3 | Dark | Up | 32.4 | 135.1 | Up | 03:58:48 - 04:28:48 | 3168 |
| Summerland | 04:13:48 | -35.4 | Dark | Up | 32.6 | 135.1 | Up | 03:58:48 - 04:28:48 | 3157 |
| Penticton | 04:13:48 | -35.5 | Dark | Up | 32.7 | 135.2 | Up | 03:58:48 - 04:28:48 | 3152 |
| Oliver | 04:13:48 | -35.6 | Dark | Up | 32.9 | 135.1 | Up | 03:58:48 - 04:28:48 | 3123 |
| Anarchist Mountain Observatory | 04:13:49 | -35.7 | Dark | Up | 33.1 | 135.2 | Up | 03:58:49 - 04:28:49 | 3111 |
| Tonasket | 04:13:49 | -35.7 | Dark | Up | 33.3 | 135.0 | Up | 03:58:49 - 04:28:49 | 3084 |
| Okanogan | 04:13:49 | -35.7 | Dark | Up | 33.5 | 134.7 | Up | 03:58:49 - 04:28:49 | 3053 |
| Brewster | 04:13:50 | -35.6 | Dark | Up | 33.6 | 134.3 | Up | 03:58:50 - 04:28:50 | 3027 |
| Victoria | 04:13:59 | -33.2 | Dark | Up | 31.5 | 130.8 | Up | 03:58:59 - 04:28:59 | 3013 |
| Manson/Chelan | 04:13:52 | -35.4 | Dark | Up | 33.6 | 133.8 | Up | 03:58:52 - 04:28:52 | 3003 |
| Entiat | 04:13:52 | -35.4 | Dark | Up | 33.7 | 133.7 | Up | 03:58:52 - 04:28:52 | 2983 |
| Wenatchee | 04:13:53 | -35.3 | Dark | Up | 33.8 | 133.4 | Up | 03:58:53 - 04:28:53 | 2960 |
| Ellensburg | 04:13:54 | -35.3 | Dark | Up | 34.0 | 133.0 | Up | 03:58:54 - 04:28:54 | 2921 |
| Yakima | 04:13:54 | -35.3 | Dark | Up | 34.2 | 132.8 | Up | 03:58:54 - 04:28:54 | 2885 |
| Pasco | 04:13:51 | -36.3 | Dark | Up | 35.2 | 134.1 | Up | 03:58:51 - 04:28:51 | 2876 |
| Toppenish/White Swan | 04:13:54 | -35.4 | Dark | Up | 34.5 | 132.9 | Up | 03:58:54 - 04:28:54 | 2868 |
| PNWRO | 04:13:51 | -36.5 | Dark | Up | 35.5 | 134.2 | Up | 03:58:51 - 04:28:51 | 2858 |
| Goldendale | 04:13:56 | -35.2 | Dark | Up | 34.6 | 132.1 | Up | 03:58:56 - 04:28:56 | 2813 |
| The Dalles | 04:13:57 | -35.0 | Dark | Up | 34.6 | 131.7 | Up | 03:58:57 - 04:28:57 | 2787 |
| Maupin | 04:13:57 | -35.1 | Dark | Up | 34.9 | 131.5 | Up | 03:58:57 - 04:28:57 | 2752 |
| Redmond | 04:13:59 | -35.1 | Dark | Up | 35.5 | 131.0 | Up | 03:58:59 - 04:28:59 | 2669 |
| Sisters | 04:14:00 | -34.9 | Dark | Up | 35.3 | 130.6 | Up | 03:59:00 - 04:29:00 | 2665 |
| Bend | 04:13:59 | -35.1 | Dark | Up | 35.5 | 130.7 | Up | 03:58:59 - 04:28:59 | 2648 |
| Oregon Observatory | 04:14:00 | -35.0 | Dark | Up | 35.6 | 130.5 | Up | 03:59:00 - 04:29:00 | 2630 |
| La Pine/Gilchrist | 04:14:00 | -35.0 | Dark | Up | 35.7 | 130.3 | Up | 03:59:00 - 04:29:00 | 2610 |
| North Lake | 04:13:59 | -35.4 | Dark | Up | 36.3 | 130.7 | Up | 03:58:59 - 04:28:59 | 2580 |
| Niwot | 04:13:13 | -47.4 | Dark | Up | 46.3 | 147.0 | Up | 03:58:13 - 04:28:13 | 2570 |
| SwRI | 04:13:14 | -47.3 | Dark | Up | 46.4 | 146.8 | Up | 03:58:14 - 04:28:14 | 2559 |
| Paisley | 04:13:59 | -35.7 | Dark | Up | 36.9 | 130.8 | Up | 03:58:59 - 04:28:59 | 2535 |
| Lakeview | 04:13:58 | -35.9 | Dark | Up | 37.3 | 130.7 | Up | 03:58:58 - 04:28:58 | 2491 |
| Klamath Falls | 04:14:02 | -34.9 | Dark | Up | 36.5 | 129.2 | Up | 03:59:02 - 04:29:02 | 2472 |
| Cedarville | 04:13:59 | -36.1 | Dark | Up | 37.8 | 130.5 | Up | 03:58:59 - 04:28:59 | 2433 |
| Fall River/Burney | 04:14:02 | -35.2 | Dark | Up | 37.4 | 128.9 | Up | 03:59:02 - 04:29:02 | 2368 |
| Susanville | 04:14:01 | -35.8 | Dark | Up | 38.3 | 129.3 | Up | 03:59:01 - 04:29:01 | 2321 |
| Gimple | 04:14:02 | -35.7 | Dark | Up | 38.3 | 128.9 | Up | 03:59:02 - 04:29:02 | 2291 |
| Greenville | 04:14:02 | -35.6 | Dark | Up | 38.3 | 128.8 | Up | 03:59:02 - 04:29:02 | 2290 |
| Quincy | 04:14:02 | -35.6 | Dark | Up | 38.4 | 128.7 | Up | 03:59:02 - 04:29:02 | 2271 |
| Portola | 04:14:01 | -36.0 | Dark | Up | 38.8 | 129.1 | Up | 03:59:01 - 04:29:01 | 2267 |
| Reno | 04:13:59 | -36.5 | Dark | Up | 39.3 | 129.6 | Up | 03:58:59 - 04:28:59 | 2252 |
| Carson City | 04:13:59 | -36.5 | Dark | Up | 39.6 | 129.4 | Up | 03:58:59 - 04:28:59 | 2218 |
| Yerington | 04:13:58 | -37.0 | Dark | Up | 40.1 | 130.0 | Up | 03:58:58 - 04:28:58 | 2210 |
| Gardnerville | 04:14:00 | -36.6 | Dark | Up | 39.7 | 129.3 | Up | 03:59:00 - 04:29:00 | 2196 |
| Hawthorne | 04:13:57 | -37.4 | Dark | Up | 40.7 | 130.2 | Up | 03:58:57 - 04:28:57 | 2175 |
| Tonopah | 04:13:53 | -38.6 | Dark | Up | 41.8 | 131.4 | Up | 03:58:53 - 04:28:53 | 2155 |
| Lee Vining | 04:13:59 | -37.1 | Dark | Up | 40.7 | 129.3 | Up | 03:58:59 - 04:28:59 | 2113 |
| Bishop | 04:13:57 | -37.7 | Dark | Up | 41.6 | 129.7 | Up | 03:58:57 - 04:28:57 | 2068 |
| Beatty | 04:13:52 | -39.0 | Dark | Up | 42.8 | 131.1 | Up | 03:58:52 - 04:28:52 | 2052 |
| Indian Springs | 04:13:49 | -39.9 | Dark | Up | 43.7 | 132.0 | Up | 03:58:49 - 04:28:49 | 2040 |
| Henderson | 04:13:47 | -40.4 | Dark | Up | 44.5 | 132.4 | Up | 03:58:47 - 04:28:47 | 2001 |
| Patrick | 04:13:43 | -41.4 | Dark | Up | 45.6 | 133.2 | Up | 03:58:43 - 04:28:43 | 1961 |
| Searchlight/Boulder City | 04:13:47 | -40.5 | Dark | Up | 44.9 | 132.1 | Up | 03:58:47 - 04:28:47 | 1946 |
| DCO | 04:13:41 | -42.0 | Dark | Up | 46.2 | 133.8 | Up | 03:58:41 - 04:28:41 | 1945 |
| Kingman/Dolan Springs | 04:13:44 | -41.2 | Dark | Up | 45.6 | 132.8 | Up | 03:58:44 - 04:28:44 | 1936 |
| Laughlin/Bullhead City | 04:13:46 | -40.8 | Dark | Up | 45.3 | 132.2 | Up | 03:58:46 - 04:28:46 | 1923 |
| Mohave Valley | 04:13:46 | -40.8 | Dark | Up | 45.5 | 132.0 | Up | 03:58:46 - 04:28:46 | 1897 |
| Lake Havasu City | 04:13:45 | -41.0 | Dark | Up | 45.9 | 132.0 | Up | 03:58:45 - 04:28:45 | 1862 |
| George/Scottsdale | 04:13:37 | -43.1 | Dark | Up | 47.9 | 134.2 | Up | 03:58:37 - 04:28:37 | 1834 |
| Parker | 04:13:45 | -41.1 | Dark | Up | 46.2 | 131.8 | Up | 03:58:45 - 04:28:45 | 1828 |
| CPSLO | 04:14:05 | -35.9 | Dark | Up | 41.4 | 125.9 | Up | 03:59:05 - 04:29:05 | 1827 |
| Blythe | 04:13:46 | -40.9 | Dark | Up | 46.3 | 131.0 | Up | 03:58:46 - 04:28:46 | 1771 |
| Wildwood | 04:13:59 | -37.6 | Dark | Up | 43.5 | 127.1 | Up | 03:58:59 - 04:28:59 | 1744 |
| Idyllwild | 04:13:53 | -39.1 | Dark | Up | 44.9 | 128.8 | Up | 03:58:53 - 04:28:53 | 1743 |
| Calipatria | 04:13:50 | -40.1 | Dark | Up | 46.1 | 129.6 | Up | 03:58:50 - 04:28:50 | 1704 |
| Yuma | 04:13:47 | -40.8 | Dark | Up | 46.9 | 130.2 | Up | 03:58:47 - 04:28:47 | 1679 |
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 523644, (2027/01/19 04:11UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 11.52 27 Alhena 06:37:42.8 +16:23:57 1.9 15.11 30 PPM 150810 06:35:15.8 +00:53:25 5.7 0.47 38 PPM 150790 06:34:39.7 +01:43:40 7.5 0.42 38 PPM 150737 06:33:06.2 +01:16:24 8.7 0.33 38 523644 06:34:24.7 +01:18:41 15.7 38 Positions are for J2000
Event circumstances last updated at 2020/10/30 23:01:23 UT
Marc W. Buie, Southwest Research Institute