Event between 14YH50 and star UC4-653-052350 with event index number of 322107
Geocentric closest approach at 2020/06/06 05:36:36 UTC
J2000 position of star is 09:45:39.4 +40:24:04
Equinox of date position of star is 09:46:49.9 +40:18:45
Stellar brightness R=13.0,
use SENSEUP=32
Star is 123 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=22.5
[RECON map]
TNO is 39.7 AU from the Sun
and 40.2 AU from the Earth.
The TNO is moving 21.0
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 104 seconds.
The 1-sigma cross-track error in the shadow position is
1985 km.
The sky-plane scale is
29152.9 km/arcsec.
The TNO has an absolute magnitude Hv=6.3
Diameter=303.4 km assuming a 5% albedo -- 15.9 sec chord
Diameter=123.9 km assuming a 30% albedo -- 6.5 sec chord
Dynamical classification is SCATNEAR
Star training set for 14YH50, (2020/06/06 05:37UT) Object RA Dec mag sep mel Pollux 07:46:33.9 +27:58:31 1.1 27.60 148 Merak 11:03:03.7 +56:16:21 2.4 20.24 112 43 Lyn 09:43:15.9 +39:39:49 5.6 0.95 123 PPM 074746 09:47:20.8 +39:44:35 7.6 0.57 123 PPM 051488 09:49:06.4 +40:09:53 9.7 0.44 122 PPM 051476 09:47:52.5 +40:15:31 10.7 0.19 123 14YH50 09:46:55.0 +40:18:22 13.0 123 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 6.2 km
RECON observability=0.7 and success probability=8.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Niwot | 05:37:45 | -24.4 | Dark | Up | 26.0 | 302.1 | Low | 05:28:35 - 05:46:55 | 2731 |
| DCO | 05:38:21 | -26.3 | Dark | Up | 28.7 | 301.2 | Low | 05:29:11 - 05:47:31 | 2327 |
| Patrick | 05:38:20 | -25.7 | Dark | Up | 29.3 | 300.9 | Low | 05:29:10 - 05:47:30 | 2293 |
| Kingman/Dolan Springs | 05:38:21 | -25.9 | Dark | Up | 29.3 | 300.9 | Low | 05:29:11 - 05:47:31 | 2280 |
| Lake Havasu City | 05:38:25 | -26.4 | Dark | Up | 29.2 | 301.1 | Low | 05:29:15 - 05:47:35 | 2257 |
| Parker | 05:38:27 | -26.7 | Dark | Up | 28.9 | 301.3 | Low | 05:29:17 - 05:47:37 | 2254 |
| Laughlin/Bullhead City | 05:38:22 | -25.7 | Dark | Up | 29.7 | 300.7 | Low | 05:29:12 - 05:47:32 | 2252 |
| Mohave Valley | 05:38:23 | -25.9 | Dark | Up | 29.5 | 300.9 | Low | 05:29:13 - 05:47:33 | 2249 |
| Henderson | 05:38:20 | -24.7 | Dark | Up | 30.4 | 300.2 | Up | 05:29:10 - 05:47:30 | 2240 |
| Searchlight/Boulder City | 05:38:21 | -25.3 | Dark | Up | 30.1 | 300.5 | Up | 05:29:11 - 05:47:31 | 2237 |
| Blythe | 05:38:30 | -27.0 | Dark | Up | 28.9 | 301.5 | Low | 05:29:20 - 05:47:40 | 2230 |
| Yuma | 05:38:34 | -27.8 | Dark | Up | 28.4 | 301.9 | Low | 05:29:24 - 05:47:44 | 2214 |
| Indian Springs | 05:38:18 | -24.0 | Dark | Up | 31.2 | 299.6 | Up | 05:29:08 - 05:47:28 | 2208 |
| Calipatria | 05:38:33 | -27.0 | Dark | Up | 29.3 | 301.4 | Low | 05:29:23 - 05:47:43 | 2171 |
| Beatty | 05:38:17 | -23.3 | Dark | Up | 32.1 | 299.1 | Up | 05:29:07 - 05:47:27 | 2152 |
| Tonopah | 05:38:12 | -22.1 | Dark | Up | 33.0 | 298.2 | Up | 05:29:02 - 05:47:22 | 2139 |
| Idyllwild | 05:38:31 | -26.0 | Dark | Up | 30.4 | 300.8 | Up | 05:29:21 - 05:47:41 | 2113 |
| PNWRO | 05:37:34 | -14.6 | AT | Up | 37.6 | 292.3 | Up | 05:28:24 - 05:46:44 | 2086 |
| Lone Pine | 05:38:20 | -23.0 | Dark | Up | 32.9 | 298.8 | Up | 05:29:10 - 05:47:30 | 2076 |
| Pasco | 05:37:33 | -14.3 | AT | Up | 37.9 | 292.0 | Up | 05:28:23 - 05:46:43 | 2075 |
| Bishop | 05:38:16 | -22.2 | Dark | Up | 33.5 | 298.2 | Up | 05:29:06 - 05:47:26 | 2067 |
| Hawthorne | 05:38:11 | -21.1 | Dark | Up | 34.2 | 297.4 | Up | 05:29:01 - 05:47:21 | 2066 |
| George/Umatilla | 05:37:35 | -14.5 | AT | Up | 37.9 | 292.2 | Up | 05:28:25 - 05:46:45 | 2064 |
| Anarchist Mountain Observatory | 05:37:19 | -11.9 | NT | Up | 39.0 | 289.8 | Up | 05:28:09 - 05:46:29 | 2055 |
| Tonasket | 05:37:22 | -12.1 | AT | Up | 39.0 | 290.0 | Up | 05:28:12 - 05:46:32 | 2053 |
| Oroville | 05:37:20 | -11.9 | NT | Up | 39.1 | 289.8 | Up | 05:28:10 - 05:46:30 | 2052 |
| Kelowna | 05:37:15 | -11.1 | NT | Up | 39.4 | 289.1 | Up | 05:28:05 - 05:46:25 | 2049 |
| Okanogan | 05:37:22 | -12.4 | AT | Up | 38.9 | 290.2 | Up | 05:28:12 - 05:46:32 | 2047 |
| Oliver | 05:37:18 | -11.7 | NT | Up | 39.2 | 289.6 | Up | 05:28:08 - 05:46:28 | 2045 |
| Penticton | 05:37:16 | -11.4 | NT | Up | 39.3 | 289.3 | Up | 05:28:06 - 05:46:26 | 2043 |
| Okanagan Falls | 05:37:17 | -11.5 | NT | Up | 39.3 | 289.4 | Up | 05:28:07 - 05:46:27 | 2043 |
| Yerington | 05:38:09 | -20.5 | Dark | Up | 34.8 | 296.9 | Up | 05:28:59 - 05:47:19 | 2041 |
| Brewster | 05:37:25 | -12.5 | AT | Up | 39.0 | 290.3 | Up | 05:28:15 - 05:46:35 | 2038 |
| Summerland | 05:37:15 | -11.0 | NT | Up | 39.6 | 288.9 | Up | 05:28:05 - 05:46:25 | 2033 |
| Lee Vining | 05:38:14 | -21.3 | Dark | Up | 34.3 | 297.6 | Up | 05:29:04 - 05:47:24 | 2033 |
| Manson/Chelan | 05:37:25 | -12.6 | AT | Up | 39.1 | 290.2 | Up | 05:28:15 - 05:46:35 | 2021 |
| Entiat | 05:37:27 | -12.7 | AT | Up | 39.1 | 290.4 | Up | 05:28:17 - 05:46:37 | 2018 |
| Wenatchee | 05:37:28 | -12.9 | AT | Up | 39.1 | 290.5 | Up | 05:28:18 - 05:46:38 | 2014 |
| Toppenish/White Swan | 05:37:33 | -13.7 | AT | Up | 38.7 | 291.3 | Up | 05:28:23 - 05:46:43 | 2011 |
| Reno | 05:38:07 | -19.7 | Dark | Up | 35.5 | 296.3 | Up | 05:28:57 - 05:47:17 | 2010 |
| Wildwood | 05:38:32 | -24.8 | Dark | Up | 32.0 | 300.0 | Up | 05:29:22 - 05:47:42 | 2009 |
| Gardnerville | 05:38:10 | -20.2 | Dark | Up | 35.2 | 296.7 | Up | 05:29:00 - 05:47:20 | 2008 |
| Carson City | 05:38:09 | -20.0 | Dark | Up | 35.3 | 296.6 | Up | 05:28:59 - 05:47:19 | 2007 |
| Cedarville | 05:37:58 | -17.9 | AT | Up | 36.6 | 294.9 | Up | 05:28:48 - 05:47:08 | 2006 |
| Ellensburg | 05:37:30 | -13.2 | AT | Up | 39.1 | 290.7 | Up | 05:28:20 - 05:46:40 | 2003 |
| Yakima | 05:37:33 | -13.5 | AT | Up | 38.9 | 291.0 | Up | 05:28:23 - 05:46:43 | 2003 |
| Lakeview | 05:37:54 | -17.3 | AT | Up | 37.0 | 294.3 | Up | 05:28:44 - 05:47:04 | 2001 |
| Paisley | 05:37:52 | -16.8 | AT | Up | 37.4 | 293.9 | Up | 05:28:42 - 05:47:02 | 1993 |
| Goldendale | 05:37:36 | -14.0 | AT | Up | 38.8 | 291.5 | Up | 05:28:26 - 05:46:46 | 1989 |
| North Lake | 05:37:50 | -16.2 | AT | Up | 37.8 | 293.3 | Up | 05:28:40 - 05:47:00 | 1977 |
| Portola | 05:38:07 | -19.2 | Dark | Up | 36.1 | 295.9 | Up | 05:28:57 - 05:47:17 | 1976 |
| Maupin | 05:37:40 | -14.5 | AT | Up | 38.7 | 291.8 | Up | 05:28:30 - 05:46:50 | 1975 |
| Susanville | 05:38:03 | -18.6 | Dark | Up | 36.4 | 295.4 | Up | 05:28:53 - 05:47:13 | 1971 |
| Madras/Culver | 05:37:43 | -14.9 | AT | Up | 38.5 | 292.2 | Up | 05:28:33 - 05:46:53 | 1971 |
| The Dalles | 05:37:38 | -14.1 | AT | Up | 38.9 | 291.5 | Up | 05:28:28 - 05:46:48 | 1970 |
| Redmond | 05:37:45 | -15.2 | AT | Up | 38.4 | 292.5 | Up | 05:28:35 - 05:46:55 | 1967 |
| Bend | 05:37:46 | -15.3 | AT | Up | 38.4 | 292.6 | Up | 05:28:36 - 05:46:56 | 1959 |
| Gimple | 05:38:05 | -18.8 | Dark | Up | 36.5 | 295.5 | Up | 05:28:55 - 05:47:15 | 1957 |
| Greenville | 05:38:05 | -18.7 | Dark | Up | 36.5 | 295.5 | Up | 05:28:55 - 05:47:15 | 1952 |
| Oregon Observatory | 05:37:47 | -15.4 | AT | Up | 38.4 | 292.6 | Up | 05:28:37 - 05:46:57 | 1951 |
| Quincy | 05:38:06 | -18.9 | Dark | Up | 36.4 | 295.6 | Up | 05:28:56 - 05:47:16 | 1950 |
| La Pine/Gilchrist | 05:37:48 | -15.6 | AT | Up | 38.4 | 292.7 | Up | 05:28:38 - 05:46:58 | 1947 |
| Sisters | 05:37:45 | -15.0 | AT | Up | 38.7 | 292.3 | Up | 05:28:35 - 05:46:55 | 1946 |
| Tulelake | 05:37:56 | -17.0 | AT | Up | 37.7 | 294.0 | Up | 05:28:46 - 05:47:06 | 1938 |
| Fall River/Burney | 05:38:01 | -17.8 | AT | Up | 37.2 | 294.7 | Up | 05:28:51 - 05:47:11 | 1935 |
| Klamath Falls | 05:37:56 | -16.6 | AT | Up | 38.0 | 293.7 | Up | 05:28:46 - 05:47:06 | 1923 |
| Chiloquin | 05:37:53 | -16.3 | AT | Up | 38.2 | 293.4 | Up | 05:28:43 - 05:47:03 | 1921 |
| CPSLO | 05:38:28 | -22.8 | Dark | Up | 34.1 | 298.7 | Up | 05:29:18 - 05:47:38 | 1907 |
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 14YH50, (2020/06/06 05:37UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 27.60 148 Merak 11:01:50.7 +56:22:57 2.4 20.24 112 43 Lyn 09:42:00.3 +39:45:28 5.6 0.95 123 PPM 074746 09:46:05.4 +39:50:18 7.6 0.57 123 PPM 051488 09:47:51.0 +40:15:36 9.7 0.44 122 PPM 051476 09:46:37.0 +40:21:13 10.7 0.19 123 14YH50 09:45:39.4 +40:24:04 13.0 123 Positions are for J2000
Event circumstances last updated at 2019/01/18 19:51:37 UT
Marc W. Buie, Southwest Research Institute