Event between (471210) 10VW11 and star GA0820:00412768 with event index number of 1025247
Geocentric closest approach at 2020/12/10 03:41:16 UTC
J2000 position of star is 04:40:10.2 -06:38:52
Equinox of date position of star is 04:41:09.2 -06:36:35
Stellar brightness G=15.2,
use SENSEUP=128
Star is 126 degrees from the moon.
Moon is 27% illuminated.
TNO apparent brightness V=25.7
[RECON map]
TNO is 36.7 AU from the Sun
and 35.8 AU from the Earth.
The TNO is moving 24.3
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 205 seconds.
The 1-sigma cross-track error in the shadow position is
1605 km.
The sky-plane scale is
25989.4 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=524.8 km assuming a 5% albedo -- 2.5 sec chord
Diameter=214.3 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is SCATNEAR
Star training set for 471210, (2020/12/10 03:41UT) Object RA Dec mag sep mel Rigel 05:15:32.7 -08:10:44 0.1 8.66 118 67Bet Eri 05:08:52.8 -05:03:39 2.8 7.06 120 PPM 187086 04:35:15.5 -06:47:44 6.4 1.49 128 PPM 187205 04:42:06.3 -06:42:30 7.4 0.25 126 471210 04:41:11.5 -06:36:29 15.2 126 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
4.4 sigma about the mid-time.
The median site spacing is 22.3 km
RECON observability=0.5 and success probability=5.4%
| 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 | 03:43:25 | -35.4 | Dark | Down | 16.4 | 122.9 | Really Low | 03:28:25 - 03:58:25 | -2070 |
| Kelowna | 03:43:27 | -35.3 | Dark | Down | 16.6 | 122.7 | Really Low | 03:28:27 - 03:58:27 | -2095 |
| Peachland | 03:43:28 | -35.2 | Dark | Down | 16.5 | 122.4 | Really Low | 03:28:28 - 03:58:28 | -2103 |
| Summerland | 03:43:28 | -35.2 | Dark | Down | 16.6 | 122.4 | Really Low | 03:28:28 - 03:58:28 | -2112 |
| Penticton | 03:43:28 | -35.3 | Dark | Down | 16.7 | 122.5 | Really Low | 03:28:28 - 03:58:28 | -2116 |
| Oliver | 03:43:29 | -35.4 | Dark | Down | 16.9 | 122.4 | Really Low | 03:28:29 - 03:58:29 | -2138 |
| Anarchist Mountain Observatory | 03:43:29 | -35.5 | Dark | Down | 17.1 | 122.6 | Really Low | 03:28:29 - 03:58:29 | -2148 |
| Tonasket | 03:43:30 | -35.5 | Dark | Down | 17.2 | 122.4 | Really Low | 03:28:30 - 03:58:30 | -2169 |
| Okanogan | 03:43:31 | -35.4 | Dark | Down | 17.3 | 122.2 | Really Low | 03:28:31 - 03:58:31 | -2191 |
| Victoria | 03:43:37 | -32.9 | Dark | Down | 15.1 | 119.0 | Really Low | 03:28:37 - 03:58:37 | -2203 |
| Brewster | 03:43:33 | -35.3 | Dark | Down | 17.3 | 122.0 | Really Low | 03:28:33 - 03:58:33 | -2210 |
| Manson/Chelan | 03:43:34 | -35.1 | Dark | Down | 17.2 | 121.6 | Really Low | 03:28:34 - 03:58:34 | -2226 |
| Entiat | 03:43:35 | -35.0 | Dark | Down | 17.3 | 121.5 | Really Low | 03:28:35 - 03:58:35 | -2241 |
| Wenatchee | 03:43:35 | -35.0 | Dark | Down | 17.4 | 121.3 | Really Low | 03:28:35 - 03:58:35 | -2258 |
| Ellensburg | 03:43:37 | -34.9 | Dark | Down | 17.5 | 121.1 | Really Low | 03:28:37 - 03:58:37 | -2287 |
| Yakima | 03:43:38 | -34.9 | Dark | Down | 17.7 | 120.9 | Really Low | 03:28:38 - 03:58:38 | -2315 |
| Toppenish/White Swan | 03:43:39 | -35.0 | Dark | Down | 17.9 | 121.0 | Really Low | 03:28:39 - 03:58:39 | -2329 |
| Pasco | 03:43:37 | -35.9 | Dark | Down | 18.7 | 122.0 | Really Low | 03:28:37 - 03:58:37 | -2330 |
| PNWRO | 03:43:37 | -36.1 | Dark | Down | 19.0 | 122.2 | Really Low | 03:28:37 - 03:58:37 | -2346 |
| Goldendale | 03:43:41 | -34.7 | Dark | Down | 17.9 | 120.5 | Really Low | 03:28:41 - 03:58:41 | -2369 |
| The Dalles | 03:43:42 | -34.5 | Dark | Down | 17.8 | 120.2 | Really Low | 03:28:42 - 03:58:42 | -2387 |
| Maupin | 03:43:43 | -34.6 | Dark | Down | 18.1 | 120.1 | Really Low | 03:28:43 - 03:58:43 | -2416 |
| Redmond | 03:43:46 | -34.5 | Dark | Down | 18.5 | 119.8 | Really Low | 03:28:46 - 03:58:46 | -2480 |
| Sisters | 03:43:46 | -34.3 | Dark | Down | 18.3 | 119.5 | Really Low | 03:28:46 - 03:58:46 | -2481 |
| Bend | 03:43:47 | -34.4 | Dark | Down | 18.5 | 119.6 | Really Low | 03:28:47 - 03:58:47 | -2496 |
| Oregon Observatory | 03:43:47 | -34.4 | Dark | Down | 18.5 | 119.5 | Really Low | 03:28:47 - 03:58:47 | -2509 |
| La Pine/Gilchrist | 03:43:48 | -34.3 | Dark | Down | 18.6 | 119.4 | Really Low | 03:28:48 - 03:58:48 | -2524 |
| North Lake | 03:43:48 | -34.8 | Dark | Down | 19.2 | 119.7 | Really Low | 03:28:48 - 03:58:48 | -2552 |
| Paisley | 03:43:49 | -35.0 | Dark | Down | 19.7 | 119.8 | Really Low | 03:28:49 - 03:58:49 | -2591 |
| Lakeview | 03:43:50 | -35.2 | Dark | Down | 20.1 | 119.8 | Low | 03:28:50 - 03:58:50 | -2627 |
| Klamath Falls | 03:43:53 | -34.1 | Dark | Down | 19.1 | 118.7 | Really Low | 03:28:53 - 03:58:53 | -2633 |
| Cedarville | 03:43:51 | -35.3 | Dark | Down | 20.5 | 119.8 | Low | 03:28:51 - 03:58:51 | -2675 |
| Niwot | 03:43:20 | -46.6 | Dark | Down | 30.5 | 132.2 | Up | 03:28:20 - 03:58:20 | -2707 |
| SwRI | 03:43:20 | -46.6 | Dark | Down | 30.5 | 132.0 | Up | 03:28:20 - 03:58:20 | -2716 |
| Fall River/Burney | 03:43:55 | -34.4 | Dark | Down | 20.0 | 118.7 | Really Low | 03:28:55 - 03:58:55 | -2720 |
| Susanville | 03:43:55 | -34.9 | Dark | Down | 20.8 | 119.0 | Low | 03:28:55 - 03:58:55 | -2763 |
| Gimple | 03:43:56 | -34.8 | Dark | Down | 20.8 | 118.8 | Low | 03:28:56 - 03:58:56 | -2786 |
| Greenville | 03:43:56 | -34.7 | Dark | Down | 20.7 | 118.7 | Low | 03:28:56 - 03:58:56 | -2786 |
| Quincy | 03:43:57 | -34.7 | Dark | Down | 20.8 | 118.7 | Low | 03:28:57 - 03:58:57 | -2802 |
| Portola | 03:43:56 | -35.0 | Dark | Down | 21.2 | 119.0 | Low | 03:28:56 - 03:58:56 | -2809 |
| Reno | 03:43:56 | -35.5 | Dark | Down | 21.8 | 119.4 | Low | 03:28:56 - 03:58:56 | -2825 |
| Carson City | 03:43:56 | -35.5 | Dark | Down | 21.9 | 119.3 | Low | 03:28:56 - 03:58:56 | -2853 |
| Yerington | 03:43:56 | -36.0 | Dark | Down | 22.5 | 119.7 | Low | 03:28:56 - 03:58:56 | -2865 |
| Gardnerville | 03:43:57 | -35.6 | Dark | Down | 22.1 | 119.3 | Low | 03:28:57 - 03:58:57 | -2872 |
| Hawthorne | 03:43:56 | -36.4 | Dark | Down | 23.1 | 120.0 | Low | 03:28:56 - 03:58:56 | -2898 |
| Tonopah | 03:43:54 | -37.5 | Dark | Down | 24.3 | 120.9 | Low | 03:28:54 - 03:58:54 | -2927 |
| Lee Vining | 03:43:58 | -36.0 | Dark | Down | 23.0 | 119.4 | Low | 03:28:58 - 03:58:58 | -2946 |
| Bishop | 03:43:58 | -36.6 | Dark | Down | 23.8 | 119.7 | Low | 03:28:58 - 03:58:58 | -2990 |
| Beatty | 03:43:55 | -37.8 | Dark | Down | 25.2 | 120.8 | Low | 03:28:55 - 03:58:55 | -3018 |
| Indian Springs | 03:43:53 | -38.7 | Dark | Down | 26.1 | 121.6 | Low | 03:28:53 - 03:58:53 | -3038 |
| Henderson | 03:43:53 | -39.2 | Dark | Down | 26.8 | 121.9 | Low | 03:28:53 - 03:58:53 | -3078 |
| Patrick | 03:43:52 | -40.1 | Dark | Down | 27.9 | 122.5 | Low | 03:28:52 - 03:58:52 | -3124 |
| Searchlight/Boulder City | 03:43:54 | -39.3 | Dark | Down | 27.2 | 121.7 | Low | 03:28:54 - 03:58:54 | -3125 |
| Kingman/Dolan Springs | 03:43:53 | -40.0 | Dark | Down | 27.9 | 122.3 | Low | 03:28:53 - 03:58:53 | -3143 |
| DCO | 03:43:51 | -40.7 | Dark | Down | 28.6 | 123.0 | Low | 03:28:51 - 03:58:51 | -3145 |
| Laughlin/Bullhead City | 03:43:54 | -39.6 | Dark | Down | 27.6 | 121.8 | Low | 03:28:54 - 03:58:54 | -3148 |
| Mohave Valley | 03:43:54 | -39.5 | Dark | Down | 27.7 | 121.7 | Low | 03:28:54 - 03:58:54 | -3171 |
| CPSLO | 03:44:07 | -34.6 | Dark | Down | 23.2 | 117.3 | Low | 03:29:07 - 03:59:07 | -3175 |
| Lake Havasu City | 03:43:55 | -39.7 | Dark | Down | 28.1 | 121.7 | Low | 03:28:55 - 03:58:55 | -3203 |
| Parker | 03:43:55 | -39.7 | Dark | Down | 28.3 | 121.6 | Low | 03:28:55 - 03:58:55 | -3233 |
| George/Scottsdale | 03:43:50 | -41.7 | Dark | Down | 30.2 | 123.4 | Up | 03:28:50 - 03:58:50 | -3255 |
| Wildwood | 03:44:06 | -36.2 | Dark | Down | 25.3 | 118.3 | Low | 03:29:06 - 03:59:06 | -3263 |
| Blythe | 03:43:57 | -39.5 | Dark | Down | 28.4 | 121.1 | Low | 03:28:57 - 03:58:57 | -3279 |
| Idyllwild | 03:44:02 | -37.7 | Dark | Down | 26.8 | 119.6 | Low | 03:29:02 - 03:59:02 | -3281 |
| Calipatria | 03:44:00 | -38.7 | Dark | Down | 28.0 | 120.2 | Low | 03:29:00 - 03:59:00 | -3327 |
| Yuma | 03:43:59 | -39.4 | Dark | Down | 28.8 | 120.7 | Low | 03:28:59 - 03:58:59 | -3359 |
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 471210, (2020/12/10 03:41UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 8.66 118 67Bet Eri 05:07:50.8 -05:05:13 2.8 7.06 120 PPM 187086 04:34:14.2 -06:50:17 6.4 1.49 128 PPM 187205 04:41:05.0 -06:44:51 7.4 0.25 126 471210 04:40:10.2 -06:38:52 15.2 126 Positions are for J2000
Event circumstances last updated at 2020/02/23 22:20:40 UT
Marc W. Buie, Southwest Research Institute