Event between 04VY130 and star GA1060:01047848 with event index number of 1023493
Geocentric closest approach at 2020/12/11 02:54:26 UTC
J2000 position of star is 05:33:03.4 +16:19:32
Equinox of date position of star is 05:34:15.9 +16:20:20
Stellar brightness G=16.0,
use SENSEUP=128
Star is 127 degrees from the moon.
Moon is 17% illuminated.
TNO apparent brightness V=22.8
[RECON map]
TNO is 30.0 AU from the Sun
and 29.1 AU from the Earth.
The TNO is moving 24.3
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 325 seconds.
The 1-sigma cross-track error in the shadow position is
1255 km.
The sky-plane scale is
21084.8 km/arcsec.
The TNO has an absolute magnitude Hv=8.1
Diameter=144.5 km assuming a 5% albedo -- 5.9 sec chord
Diameter=59.0 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is 3:2E
Star training set for 04VY130, (2020/12/11 02:54UT) Object RA Dec mag sep mel Betelgeuse 05:56:18.4 +07:24:33 0.4 10.43 122 Bellatrix 05:26:15.3 +06:22:01 1.6 10.16 129 PPM 121072 05:33:27.1 +17:04:19 6.1 0.76 127 PPM 121123 05:35:40.8 +15:48:38 8.2 0.63 127 PPM 121108 05:35:02.8 +16:20:07 9.5 0.19 127 04VY130 05:34:16.0 +16:20:20 16.0 127 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
2.8 sigma about the mid-time.
The median site spacing is 25.6 km
RECON observability=0.4 and success probability=26.6%
| 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 | 02:56:54 | -28.0 | Dark | Down | 20.1 | 88.3 | Low | 02:41:54 - 03:11:54 | -416 |
| Kelowna | 02:56:55 | -27.8 | Dark | Down | 20.0 | 88.1 | Really Low | 02:41:55 - 03:11:55 | -439 |
| Peachland | 02:56:56 | -27.6 | Dark | Down | 19.8 | 87.8 | Really Low | 02:41:56 - 03:11:56 | -440 |
| Victoria | 02:57:02 | -25.2 | Dark | Down | 17.3 | 84.7 | Really Low | 02:42:02 - 03:12:02 | -444 |
| Summerland | 02:56:56 | -27.7 | Dark | Down | 19.8 | 87.8 | Really Low | 02:41:56 - 03:11:56 | -452 |
| Penticton | 02:56:57 | -27.8 | Dark | Down | 19.9 | 87.9 | Really Low | 02:41:57 - 03:11:57 | -459 |
| Oliver | 02:56:58 | -27.7 | Dark | Down | 19.9 | 87.8 | Really Low | 02:41:58 - 03:11:58 | -482 |
| Anarchist Mountain Observatory | 02:56:58 | -27.9 | Dark | Down | 20.0 | 87.9 | Low | 02:41:58 - 03:11:58 | -497 |
| Tonasket | 02:56:59 | -27.8 | Dark | Down | 19.9 | 87.7 | Really Low | 02:41:59 - 03:11:59 | -517 |
| Okanogan | 02:57:01 | -27.7 | Dark | Down | 19.8 | 87.5 | Really Low | 02:42:01 - 03:12:01 | -537 |
| Brewster | 02:57:02 | -27.5 | Dark | Down | 19.7 | 87.2 | Really Low | 02:42:02 - 03:12:02 | -551 |
| Manson/Chelan | 02:57:03 | -27.3 | Dark | Down | 19.4 | 86.9 | Really Low | 02:42:03 - 03:12:03 | -558 |
| Entiat | 02:57:04 | -27.2 | Dark | Down | 19.4 | 86.8 | Really Low | 02:42:04 - 03:12:04 | -571 |
| Wenatchee | 02:57:05 | -27.1 | Dark | Down | 19.3 | 86.6 | Really Low | 02:42:05 - 03:12:05 | -587 |
| Ellensburg | 02:57:06 | -26.9 | Dark | Down | 19.1 | 86.3 | Really Low | 02:42:06 - 03:12:06 | -610 |
| Yakima | 02:57:08 | -26.9 | Dark | Down | 19.1 | 86.2 | Really Low | 02:42:08 - 03:12:08 | -639 |
| Toppenish/White Swan | 02:57:08 | -27.0 | Dark | Down | 19.2 | 86.2 | Really Low | 02:42:08 - 03:12:08 | -658 |
| Goldendale | 02:57:10 | -26.6 | Dark | Down | 18.9 | 85.7 | Really Low | 02:42:10 - 03:12:10 | -687 |
| Pasco | 02:57:08 | -27.8 | Dark | Down | 20.1 | 87.1 | Low | 02:42:08 - 03:12:08 | -695 |
| The Dalles | 02:57:11 | -26.4 | Dark | Down | 18.6 | 85.4 | Really Low | 02:42:11 - 03:12:11 | -696 |
| PNWRO | 02:57:09 | -28.0 | Dark | Down | 20.2 | 87.1 | Low | 02:42:09 - 03:12:09 | -718 |
| Maupin | 02:57:13 | -26.4 | Dark | Down | 18.6 | 85.3 | Really Low | 02:42:13 - 03:12:13 | -728 |
| Sisters | 02:57:16 | -25.9 | Dark | Down | 18.2 | 84.7 | Really Low | 02:42:16 - 03:12:16 | -780 |
| Redmond | 02:57:16 | -26.2 | Dark | Down | 18.5 | 85.0 | Really Low | 02:42:16 - 03:12:16 | -791 |
| Bend | 02:57:17 | -26.1 | Dark | Down | 18.4 | 84.8 | Really Low | 02:42:17 - 03:12:17 | -804 |
| Oregon Observatory | 02:57:18 | -26.0 | Dark | Down | 18.3 | 84.7 | Really Low | 02:42:18 - 03:12:18 | -813 |
| La Pine/Gilchrist | 02:57:18 | -25.9 | Dark | Down | 18.2 | 84.6 | Really Low | 02:42:18 - 03:12:18 | -827 |
| North Lake | 02:57:19 | -26.3 | Dark | Down | 18.6 | 84.8 | Really Low | 02:42:19 - 03:12:19 | -873 |
| Paisley | 02:57:21 | -26.5 | Dark | Down | 18.8 | 84.9 | Really Low | 02:42:21 - 03:12:21 | -924 |
| Klamath Falls | 02:57:23 | -25.5 | Dark | Down | 17.9 | 83.9 | Really Low | 02:42:23 - 03:12:23 | -930 |
| Lakeview | 02:57:23 | -26.6 | Dark | Down | 18.9 | 84.8 | Really Low | 02:42:23 - 03:12:23 | -967 |
| Cedarville | 02:57:25 | -26.6 | Dark | Down | 19.0 | 84.7 | Really Low | 02:42:25 - 03:12:25 | -1022 |
| Fall River/Burney | 02:57:27 | -25.6 | Dark | Down | 18.1 | 83.8 | Really Low | 02:42:27 - 03:12:27 | -1029 |
| Susanville | 02:57:28 | -26.1 | Dark | Down | 18.6 | 84.1 | Really Low | 02:42:28 - 03:12:28 | -1097 |
| Greenville | 02:57:29 | -25.8 | Dark | Down | 18.3 | 83.8 | Really Low | 02:42:29 - 03:12:29 | -1111 |
| Gimple | 02:57:29 | -25.9 | Dark | Down | 18.4 | 83.8 | Really Low | 02:42:29 - 03:12:29 | -1114 |
| Quincy | 02:57:30 | -25.8 | Dark | Down | 18.3 | 83.7 | Really Low | 02:42:30 - 03:12:30 | -1127 |
| Portola | 02:57:30 | -26.1 | Dark | Down | 18.7 | 84.0 | Really Low | 02:42:30 - 03:12:30 | -1149 |
| Reno | 02:57:31 | -26.6 | Dark | Down | 19.1 | 84.3 | Really Low | 02:42:31 - 03:12:31 | -1187 |
| Carson City | 02:57:32 | -26.6 | Dark | Down | 19.1 | 84.2 | Really Low | 02:42:32 - 03:12:32 | -1216 |
| Gardnerville | 02:57:33 | -26.6 | Dark | Down | 19.1 | 84.1 | Really Low | 02:42:33 - 03:12:33 | -1237 |
| Yerington | 02:57:32 | -27.0 | Dark | Down | 19.6 | 84.5 | Really Low | 02:42:32 - 03:12:32 | -1248 |
| Hawthorne | 02:57:33 | -27.4 | Dark | Down | 20.0 | 84.7 | Really Low | 02:42:33 - 03:12:33 | -1299 |
| Lee Vining | 02:57:35 | -26.9 | Dark | Down | 19.5 | 84.2 | Really Low | 02:42:35 - 03:12:35 | -1332 |
| Tonopah | 02:57:33 | -28.4 | Dark | Down | 21.0 | 85.3 | Low | 02:42:33 - 03:12:33 | -1373 |
| Bishop | 02:57:36 | -27.4 | Dark | Down | 20.0 | 84.4 | Low | 02:42:36 - 03:12:36 | -1401 |
| Beatty | 02:57:37 | -28.6 | Dark | Down | 21.3 | 85.1 | Low | 02:42:37 - 03:12:37 | -1482 |
| Niwot | 02:57:14 | -37.8 | Dark | Down | 30.3 | 93.8 | Up | 02:42:14 - 03:12:14 | -1505 |
| SwRI | 02:57:14 | -37.7 | Dark | Down | 30.3 | 93.7 | Up | 02:42:14 - 03:12:14 | -1512 |
| CPSLO | 02:57:44 | -25.2 | Dark | Down | 18.0 | 82.4 | Really Low | 02:42:44 - 03:12:44 | -1515 |
| Indian Springs | 02:57:37 | -29.4 | Dark | Down | 22.1 | 85.6 | Low | 02:42:37 - 03:12:37 | -1538 |
| Henderson | 02:57:37 | -29.9 | Dark | Down | 22.7 | 85.8 | Low | 02:42:37 - 03:12:37 | -1602 |
| Searchlight/Boulder City | 02:57:39 | -29.9 | Dark | Down | 22.7 | 85.6 | Low | 02:42:39 - 03:12:39 | -1653 |
| Wildwood | 02:57:46 | -26.7 | Dark | Down | 19.5 | 83.1 | Really Low | 02:42:46 - 03:12:46 | -1673 |
| Patrick | 02:57:38 | -30.7 | Dark | Down | 23.5 | 86.2 | Low | 02:42:38 - 03:12:38 | -1685 |
| Laughlin/Bullhead City | 02:57:39 | -30.1 | Dark | Down | 22.9 | 85.7 | Low | 02:42:39 - 03:12:39 | -1688 |
| Kingman/Dolan Springs | 02:57:39 | -30.5 | Dark | Down | 23.4 | 86.0 | Low | 02:42:39 - 03:12:39 | -1700 |
| Mohave Valley | 02:57:40 | -30.1 | Dark | Down | 22.9 | 85.6 | Low | 02:42:40 - 03:12:40 | -1712 |
| DCO | 02:57:38 | -31.2 | Dark | Down | 24.1 | 86.4 | Low | 02:42:38 - 03:12:38 | -1731 |
| Lake Havasu City | 02:57:41 | -30.2 | Dark | Down | 23.1 | 85.5 | Low | 02:42:41 - 03:12:41 | -1754 |
| Idyllwild | 02:57:45 | -28.1 | Dark | Down | 21.1 | 84.0 | Low | 02:42:45 - 03:12:45 | -1755 |
| Parker | 02:57:42 | -30.2 | Dark | Down | 23.1 | 85.4 | Low | 02:42:42 - 03:12:42 | -1785 |
| Blythe | 02:57:44 | -29.9 | Dark | Down | 22.8 | 85.0 | Low | 02:42:44 - 03:12:44 | -1823 |
| Calipatria | 02:57:46 | -29.0 | Dark | Down | 22.0 | 84.3 | Low | 02:42:46 - 03:12:46 | -1842 |
| George/Scottsdale | 02:57:41 | -32.1 | Dark | Down | 25.1 | 86.5 | Low | 02:42:41 - 03:12:41 | -1889 |
| Yuma | 02:57:46 | -29.7 | Dark | Down | 22.7 | 84.6 | Low | 02:42:46 - 03:12:46 | -1905 |
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 04VY130, (2020/12/11 02:54UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 10.43 122 Bellatrix 05:25:07.8 +06:20:58 1.6 10.16 129 PPM 121072 05:32:14.1 +17:03:29 6.1 0.76 127 PPM 121123 05:34:28.5 +15:47:52 8.2 0.63 127 PPM 121108 05:33:50.2 +16:19:20 9.5 0.19 127 04VY130 05:33:03.4 +16:19:32 16.0 127 Positions are for J2000
Event circumstances last updated at 2020/12/02 11:37:00 UT
Marc W. Buie, Southwest Research Institute