Event between 14YY49 and star UC4-463-030506 with event index number of 321906
Geocentric closest approach at 2020/04/12 04:57:03 UTC
J2000 position of star is 07:14:10.7 +02:24:56
Equinox of date position of star is 07:15:11.5 +02:22:51
Stellar brightness R=13.5,
use SENSEUP=32
Star is 145 degrees from the moon.
Moon is 78% illuminated.
TNO apparent brightness V=23.4
[RECON map]
TNO is 19.7 AU from the Sun
and 19.7 AU from the Earth.
The TNO is moving 13.1
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 77 seconds.
The 1-sigma cross-track error in the shadow position is
1107 km.
The sky-plane scale is
14303.9 km/arcsec.
The TNO has an absolute magnitude Hv=10.2
Diameter=55.2 km assuming a 5% albedo -- 4.2 sec chord
Diameter=22.5 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 14YY49, (2020/04/12 04:57UT) Object RA Dec mag sep mel Betelgeuse 05:56:16.2 +07:24:33 0.4 20.30 162 Alhena 06:38:53.0 +16:22:49 1.9 16.61 159 PPM 152385 07:20:25.9 +02:42:07 5.9 1.34 144 PPM 152304 07:17:57.3 +02:42:10 8.3 0.75 144 PPM 152250 07:16:25.9 +02:02:16 9.6 0.45 144 PPM 152146 07:13:31.7 +02:28:39 10.8 0.44 145 14YY49 07:15:14.2 +02:22:45 13.5 144 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 21.4 km
RECON observability=1.0 and success probability=30.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 05:04:05 | -20.1 | Dark | Down | 27.1 | 237.8 | Low | 04:57:08 - 05:11:02 | -566 |
| Summerland | 05:04:05 | -20.2 | Dark | Down | 27.4 | 237.7 | Low | 04:57:08 - 05:11:02 | -585 |
| Penticton | 05:04:05 | -20.3 | Dark | Down | 27.3 | 237.8 | Low | 04:57:08 - 05:11:02 | -595 |
| Okanagan Falls | 05:04:06 | -20.4 | Dark | Down | 27.5 | 237.9 | Low | 04:57:09 - 05:11:03 | -613 |
| Oliver | 05:04:05 | -20.5 | Dark | Down | 27.5 | 237.9 | Low | 04:57:08 - 05:11:02 | -630 |
| Anarchist Mountain Observatory | 05:04:05 | -20.7 | Dark | Down | 27.5 | 238.2 | Low | 04:57:08 - 05:11:02 | -653 |
| Oroville | 05:04:05 | -20.7 | Dark | Down | 27.6 | 238.2 | Low | 04:57:08 - 05:11:02 | -658 |
| Tonasket | 05:04:05 | -20.9 | Dark | Down | 27.7 | 238.3 | Low | 04:57:08 - 05:11:02 | -680 |
| Okanogan | 05:04:04 | -21.1 | Dark | Down | 28.0 | 238.3 | Low | 04:57:07 - 05:11:01 | -708 |
| Brewster | 05:04:04 | -21.1 | Dark | Down | 28.2 | 238.2 | Low | 04:57:07 - 05:11:01 | -728 |
| Manson/Chelan | 05:04:02 | -21.1 | Dark | Down | 28.6 | 238.0 | Low | 04:57:05 - 05:10:59 | -736 |
| Entiat | 05:04:02 | -21.2 | Dark | Down | 28.7 | 238.0 | Low | 04:57:05 - 05:10:59 | -754 |
| Wenatchee | 05:04:01 | -21.3 | Dark | Down | 28.9 | 238.0 | Low | 04:57:04 - 05:10:58 | -776 |
| Ellensburg | 05:04:00 | -21.5 | Dark | Down | 29.3 | 238.0 | Low | 04:57:03 - 05:10:57 | -808 |
| Yakima | 05:04:00 | -21.7 | Dark | Down | 29.5 | 238.2 | Low | 04:57:03 - 05:10:57 | -847 |
| Toppenish/White Swan | 05:03:59 | -22.0 | Dark | Down | 29.5 | 238.4 | Low | 04:57:02 - 05:10:56 | -874 |
| Goldendale | 05:03:58 | -22.1 | Dark | Down | 30.0 | 238.3 | Up | 04:57:01 - 05:10:55 | -913 |
| The Dalles | 05:03:57 | -22.1 | Dark | Down | 30.4 | 238.1 | Up | 04:57:00 - 05:10:54 | -921 |
| Pasco | 05:04:04 | -22.7 | Dark | Down | 28.8 | 239.7 | Low | 04:57:07 - 05:11:01 | -931 |
| George/Umatilla | 05:04:03 | -22.8 | Dark | Down | 29.1 | 239.6 | Low | 04:57:06 - 05:11:00 | -956 |
| PNWRO | 05:04:03 | -23.0 | Dark | Down | 28.8 | 240.0 | Low | 04:57:06 - 05:11:00 | -964 |
| Maupin | 05:03:56 | -22.4 | Dark | Down | 30.5 | 238.4 | Up | 04:56:59 - 05:10:53 | -966 |
| Madras/Culver | 05:03:56 | -22.7 | Dark | Down | 30.9 | 238.6 | Up | 04:56:59 - 05:10:53 | -1018 |
| Sisters | 05:03:54 | -22.7 | Dark | Down | 31.3 | 238.4 | Up | 04:56:57 - 05:10:51 | -1033 |
| Redmond | 05:03:54 | -22.9 | Dark | Down | 31.1 | 238.7 | Up | 04:56:57 - 05:10:51 | -1050 |
| Bend | 05:03:54 | -23.0 | Dark | Down | 31.3 | 238.7 | Up | 04:56:57 - 05:10:51 | -1066 |
| Oregon Observatory | 05:03:53 | -23.0 | Dark | Down | 31.4 | 238.7 | Up | 04:56:56 - 05:10:50 | -1078 |
| La Pine/Gilchrist | 05:03:53 | -23.1 | Dark | Down | 31.6 | 238.7 | Up | 04:56:56 - 05:10:50 | -1096 |
| North Lake | 05:03:54 | -23.7 | Dark | Down | 31.4 | 239.5 | Up | 04:56:57 - 05:10:51 | -1161 |
| Chiloquin | 05:03:50 | -23.6 | Dark | Down | 32.4 | 239.0 | Up | 04:56:53 - 05:10:47 | -1190 |
| Klamath Falls | 05:03:49 | -23.9 | Dark | Down | 32.5 | 239.3 | Up | 04:56:52 - 05:10:46 | -1226 |
| Paisley | 05:03:54 | -24.3 | Dark | Down | 31.5 | 240.1 | Up | 04:56:57 - 05:10:51 | -1229 |
| Tulelake | 05:03:49 | -24.2 | Dark | Down | 32.5 | 239.7 | Up | 04:56:52 - 05:10:46 | -1264 |
| Lakeview | 05:03:54 | -24.7 | Dark | Down | 31.6 | 240.6 | Up | 04:56:57 - 05:10:51 | -1286 |
| Fall River/Burney | 05:03:48 | -24.8 | Dark | Down | 32.9 | 240.3 | Up | 04:56:51 - 05:10:45 | -1356 |
| Cedarville | 05:03:52 | -25.3 | Dark | Down | 31.8 | 241.1 | Up | 04:56:55 - 05:10:49 | -1357 |
| Susanville | 05:03:49 | -25.7 | Dark | Down | 32.7 | 241.3 | Up | 04:56:52 - 05:10:46 | -1448 |
| Greenville | 05:03:47 | -25.7 | Dark | Down | 33.0 | 241.2 | Up | 04:56:50 - 05:10:44 | -1463 |
| Gimple | 05:03:48 | -25.7 | Dark | Down | 33.0 | 241.2 | Up | 04:56:51 - 05:10:45 | -1466 |
| Quincy | 05:03:47 | -25.8 | Dark | Down | 33.1 | 241.3 | Up | 04:56:50 - 05:10:44 | -1483 |
| Portola | 05:03:49 | -26.2 | Dark | Down | 32.9 | 241.8 | Up | 04:56:52 - 05:10:46 | -1514 |
| Reno | 05:03:50 | -26.7 | Dark | Down | 32.5 | 242.5 | Up | 04:56:53 - 05:10:47 | -1566 |
| Carson City | 05:03:50 | -27.0 | Dark | Down | 32.7 | 242.7 | Up | 04:56:53 - 05:10:47 | -1603 |
| Gardnerville | 05:03:49 | -27.2 | Dark | Down | 32.8 | 242.9 | Up | 04:56:52 - 05:10:46 | -1629 |
| Yerington | 05:03:52 | -27.5 | Dark | Down | 32.3 | 243.4 | Up | 04:56:55 - 05:10:49 | -1647 |
| Hawthorne | 05:03:52 | -28.1 | Dark | Down | 32.2 | 244.1 | Up | 04:56:55 - 05:10:49 | -1714 |
| Lee Vining | 05:03:50 | -28.2 | Dark | Down | 32.8 | 244.0 | Up | 04:56:53 - 05:10:47 | -1751 |
| Tonopah | 05:03:55 | -29.3 | Dark | Down | 31.3 | 245.5 | Up | 04:56:58 - 05:10:52 | -1815 |
| Bishop | 05:03:50 | -29.0 | Dark | Down | 32.5 | 244.9 | Up | 04:56:53 - 05:10:47 | -1839 |
| Lone Pine | 05:03:49 | -29.7 | Dark | Down | 32.6 | 245.7 | Up | 04:56:52 - 05:10:46 | -1927 |
| CPSLO | 05:03:37 | -28.8 | Dark | Down | 35.1 | 244.3 | Up | 04:56:40 - 05:10:34 | -1948 |
| Beatty | 05:03:54 | -30.3 | Dark | Down | 31.5 | 246.5 | Up | 04:56:57 - 05:10:51 | -1948 |
| Niwot | 05:04:31 | -34.1 | Dark | Down | 21.8 | 253.9 | Low | 04:57:34 - 05:11:28 | -1989 |
| SwRI | 05:04:33 | -34.1 | Dark | Down | 21.9 | 253.9 | Low | 04:57:36 - 05:11:30 | -1997 |
| Indian Springs | 05:03:57 | -31.2 | Dark | Down | 30.8 | 247.6 | Up | 04:57:00 - 05:10:54 | -2022 |
| Henderson | 05:03:59 | -31.9 | Dark | Down | 30.5 | 248.4 | Up | 04:57:02 - 05:10:56 | -2102 |
| Wildwood | 05:03:41 | -30.9 | Dark | Down | 34.0 | 246.7 | Up | 04:56:44 - 05:10:38 | -2154 |
| Searchlight/Boulder City | 05:03:57 | -32.4 | Dark | Down | 30.6 | 248.8 | Up | 04:57:00 - 05:10:54 | -2162 |
| Laughlin/Bullhead City | 05:03:58 | -32.8 | Dark | Down | 30.5 | 249.2 | Up | 04:57:01 - 05:10:55 | -2205 |
| Patrick | 05:03:59 | -33.0 | Dark | Down | 29.9 | 249.6 | Low | 04:57:02 - 05:10:56 | -2206 |
| Kingman/Dolan Springs | 05:03:59 | -33.1 | Dark | Down | 30.1 | 249.6 | Up | 04:57:02 - 05:10:56 | -2222 |
| Mohave Valley | 05:03:56 | -33.0 | Dark | Down | 30.6 | 249.4 | Up | 04:56:59 - 05:10:53 | -2233 |
| DCO | 05:04:03 | -33.7 | Dark | Down | 29.4 | 250.3 | Low | 04:57:06 - 05:11:00 | -2263 |
| Idyllwild | 05:03:47 | -32.4 | Dark | Down | 32.7 | 248.4 | Up | 04:56:50 - 05:10:44 | -2266 |
| Lake Havasu City | 05:03:57 | -33.4 | Dark | Down | 30.5 | 249.8 | Up | 04:57:00 - 05:10:54 | -2282 |
| Parker | 05:03:56 | -33.6 | Dark | Down | 30.6 | 250.0 | Up | 04:56:59 - 05:10:53 | -2319 |
| Blythe | 05:03:53 | -33.8 | Dark | Down | 31.1 | 250.0 | Up | 04:56:56 - 05:10:50 | -2360 |
| Calipatria | 05:03:48 | -33.5 | Dark | Down | 32.0 | 249.6 | Up | 04:56:51 - 05:10:45 | -2374 |
| Yuma | 05:03:50 | -34.4 | Dark | Down | 31.4 | 250.5 | Up | 04:56:53 - 05:10:47 | -2452 |
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 14YY49, (2020/04/12 04:57UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 20.30 162 Alhena 06:37:42.8 +16:23:57 1.9 16.61 159 PPM 152385 07:19:22.4 +02:44:26 5.9 1.34 144 PPM 152304 07:16:53.7 +02:44:25 8.3 0.75 144 PPM 152250 07:15:22.7 +02:04:28 9.6 0.45 144 PPM 152146 07:12:28.2 +02:30:46 10.8 0.44 145 14YY49 07:14:10.7 +02:24:56 13.5 145 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:27:11 UT
Marc W. Buie, Southwest Research Institute