Event between 14YG50 and star UC4-575-040531 with event index number of 322174
Geocentric closest approach at 2020/01/30 11:41:30 UTC
J2000 position of star is 07:43:14.6 +24:55:13
Equinox of date position of star is 07:44:23.8 +24:52:26
Stellar brightness R=15.7,
use SENSEUP=128
Star is 102 degrees from the moon.
Moon is 27% illuminated.
TNO apparent brightness V=22.5
[RECON map]
TNO is 34.6 AU from the Sun
and 33.7 AU from the Earth.
The TNO is moving 24.2
km/sec on the sky relative to the star, or,
3.6 arcsec/hr.
The 1-sigma error in the time of the event is 86 seconds.
The 1-sigma cross-track error in the shadow position is
1526 km.
The sky-plane scale is
24407.2 km/arcsec.
The TNO has an absolute magnitude Hv=7.1
Diameter=235.5 km assuming a 5% albedo -- 9.3 sec chord
Diameter=96.1 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 3:2E
Star training set for 14YG50, (2020/01/30 11:41UT) Object RA Dec mag sep mel Pollux 07:46:32.6 +27:58:34 1.1 3.14 102 77Kap Gem 07:45:39.4 +24:20:54 3.6 0.59 102 PPM 097838 07:42:16.1 +24:55:01 7.6 0.50 101 PPM 097896 07:44:56.4 +25:04:20 10.5 0.23 102 14YG50 07:44:27.5 +24:52:17 15.7 102 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 12.9 km
RECON observability=1.0 and success probability=0.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 11:39:03 | -37.6 | Dark | Down | 32.3 | 271.4 | Up | 11:31:21 - 11:46:44 | 6808 |
| Summerland | 11:39:03 | -37.8 | Dark | Down | 32.5 | 271.1 | Up | 11:31:21 - 11:46:44 | 6794 |
| Penticton | 11:39:01 | -37.8 | Dark | Down | 32.4 | 271.5 | Up | 11:31:20 - 11:46:43 | 6777 |
| Okanagan Falls | 11:39:00 | -37.9 | Dark | Down | 32.4 | 271.6 | Up | 11:31:19 - 11:46:42 | 6763 |
| Oliver | 11:39:00 | -37.9 | Dark | Down | 32.4 | 271.7 | Up | 11:31:19 - 11:46:42 | 6751 |
| Anarchist Mountain Observatory | 11:39:00 | -37.9 | Dark | Down | 32.2 | 271.9 | Up | 11:31:18 - 11:46:41 | 6745 |
| Oroville | 11:38:59 | -37.9 | Dark | Down | 32.3 | 271.9 | Up | 11:31:18 - 11:46:41 | 6737 |
| Tonasket | 11:38:58 | -38.0 | Dark | Down | 32.3 | 272.1 | Up | 11:31:17 - 11:46:40 | 6720 |
| Okanogan | 11:38:58 | -38.2 | Dark | Down | 32.4 | 272.2 | Up | 11:31:17 - 11:46:40 | 6691 |
| Brewster | 11:38:57 | -38.4 | Dark | Down | 32.5 | 272.2 | Up | 11:31:15 - 11:46:38 | 6665 |
| Manson/Chelan | 11:38:56 | -38.7 | Dark | Down | 32.7 | 272.0 | Up | 11:31:14 - 11:46:37 | 6637 |
| Entiat | 11:38:56 | -38.8 | Dark | Down | 32.8 | 272.1 | Up | 11:31:14 - 11:46:37 | 6619 |
| Wenatchee | 11:38:55 | -39.0 | Dark | Down | 32.8 | 272.2 | Up | 11:31:13 - 11:46:36 | 6597 |
| Niwot | 11:38:20 | -29.4 | Dark | Down | 21.0 | 285.5 | Low | 11:30:38 - 11:46:01 | 6565 |
| Ellensburg | 11:38:54 | -39.2 | Dark | Down | 33.0 | 272.3 | Up | 11:31:12 - 11:46:35 | 6558 |
| Pasco | 11:38:50 | -38.5 | Dark | Down | 32.0 | 273.8 | Up | 11:31:08 - 11:46:31 | 6548 |
| PNWRO | 11:38:49 | -38.4 | Dark | Down | 31.8 | 274.1 | Up | 11:31:07 - 11:46:30 | 6536 |
| Yakima | 11:38:52 | -39.4 | Dark | Down | 33.0 | 272.6 | Up | 11:31:11 - 11:46:34 | 6527 |
| Toppenish/White Swan | 11:38:52 | -39.3 | Dark | Down | 32.9 | 272.8 | Up | 11:31:10 - 11:46:33 | 6516 |
| George/Umatilla | 11:38:49 | -38.8 | Dark | Down | 32.1 | 273.8 | Up | 11:31:07 - 11:46:30 | 6515 |
| Goldendale | 11:38:50 | -39.8 | Dark | Down | 33.1 | 272.9 | Up | 11:31:09 - 11:46:32 | 6459 |
| The Dalles | 11:38:50 | -40.1 | Dark | Down | 33.4 | 272.8 | Up | 11:31:08 - 11:46:31 | 6430 |
| Maupin | 11:38:48 | -40.1 | Dark | Down | 33.3 | 273.1 | Up | 11:31:07 - 11:46:30 | 6401 |
| Madras/Culver | 11:38:47 | -40.3 | Dark | Down | 33.3 | 273.5 | Up | 11:31:05 - 11:46:28 | 6357 |
| Redmond | 11:38:45 | -40.5 | Dark | Down | 33.3 | 273.6 | Up | 11:31:04 - 11:46:27 | 6327 |
| Sisters | 11:38:46 | -40.7 | Dark | Down | 33.6 | 273.4 | Up | 11:31:05 - 11:46:28 | 6315 |
| Bend | 11:38:45 | -40.6 | Dark | Down | 33.4 | 273.7 | Up | 11:31:03 - 11:46:26 | 6305 |
| Oregon Observatory | 11:38:45 | -40.8 | Dark | Down | 33.5 | 273.7 | Up | 11:31:03 - 11:46:26 | 6287 |
| La Pine/Gilchrist | 11:38:44 | -40.9 | Dark | Down | 33.5 | 273.8 | Up | 11:31:03 - 11:46:26 | 6268 |
| North Lake | 11:38:42 | -40.6 | Dark | Down | 33.0 | 274.5 | Up | 11:31:01 - 11:46:24 | 6254 |
| Paisley | 11:38:40 | -40.4 | Dark | Down | 32.7 | 275.1 | Up | 11:30:58 - 11:46:21 | 6222 |
| Lakeview | 11:38:38 | -40.4 | Dark | Down | 32.6 | 275.5 | Up | 11:30:56 - 11:46:19 | 6187 |
| Chiloquin | 11:38:41 | -41.4 | Dark | Down | 33.7 | 274.3 | Up | 11:31:00 - 11:46:23 | 6166 |
| Klamath Falls | 11:38:40 | -41.4 | Dark | Down | 33.6 | 274.6 | Up | 11:30:59 - 11:46:22 | 6141 |
| Cedarville | 11:38:36 | -40.5 | Dark | Down | 32.4 | 276.0 | Up | 11:30:54 - 11:46:17 | 6140 |
| Tulelake | 11:38:39 | -41.3 | Dark | Down | 33.4 | 275.0 | Up | 11:30:57 - 11:46:20 | 6129 |
| Fall River/Burney | 11:38:35 | -41.5 | Dark | Down | 33.2 | 275.6 | Up | 11:30:54 - 11:46:17 | 6057 |
| Susanville | 11:38:33 | -41.1 | Dark | Down | 32.6 | 276.4 | Up | 11:30:51 - 11:46:14 | 6031 |
| Gimple | 11:38:33 | -41.3 | Dark | Down | 32.7 | 276.5 | Up | 11:30:51 - 11:46:14 | 6001 |
| Greenville | 11:38:32 | -41.3 | Dark | Down | 32.8 | 276.4 | Up | 11:30:51 - 11:46:14 | 5998 |
| Reno | 11:38:29 | -40.6 | Dark | Down | 31.9 | 277.5 | Up | 11:30:47 - 11:46:10 | 5988 |
| Portola | 11:38:30 | -41.1 | Dark | Down | 32.4 | 276.9 | Up | 11:30:49 - 11:46:12 | 5987 |
| Quincy | 11:38:32 | -41.4 | Dark | Down | 32.8 | 276.6 | Up | 11:30:50 - 11:46:13 | 5981 |
| Yerington | 11:38:27 | -40.2 | Dark | Down | 31.3 | 278.2 | Up | 11:30:46 - 11:46:09 | 5966 |
| Carson City | 11:38:28 | -40.7 | Dark | Down | 31.8 | 277.7 | Up | 11:30:46 - 11:46:09 | 5959 |
| Tonopah | 11:38:21 | -38.9 | Dark | Down | 29.7 | 279.8 | Low | 11:30:40 - 11:46:03 | 5959 |
| Hawthorne | 11:38:25 | -39.9 | Dark | Down | 30.8 | 278.7 | Up | 11:30:43 - 11:46:06 | 5946 |
| Gardnerville | 11:38:28 | -40.7 | Dark | Down | 31.8 | 277.9 | Up | 11:30:46 - 11:46:09 | 5940 |
| Indian Springs | 11:38:16 | -37.9 | Dark | Down | 28.2 | 281.4 | Low | 11:30:35 - 11:45:58 | 5892 |
| Lee Vining | 11:38:24 | -40.4 | Dark | Down | 31.1 | 278.8 | Up | 11:30:42 - 11:46:05 | 5881 |
| Beatty | 11:38:18 | -38.7 | Dark | Down | 29.1 | 280.6 | Low | 11:30:36 - 11:45:59 | 5879 |
| Henderson | 11:38:14 | -37.4 | Dark | Down | 27.6 | 282.0 | Low | 11:30:32 - 11:45:55 | 5873 |
| DCO | 11:38:09 | -35.9 | Dark | Down | 25.9 | 283.3 | Low | 11:30:28 - 11:45:51 | 5865 |
| Patrick | 11:38:10 | -36.5 | Dark | Down | 26.6 | 282.9 | Low | 11:30:29 - 11:45:52 | 5863 |
| Bishop | 11:38:21 | -39.9 | Dark | Down | 30.5 | 279.5 | Up | 11:30:40 - 11:46:03 | 5857 |
| Kingman/Dolan Springs | 11:38:10 | -36.7 | Dark | Down | 26.7 | 282.9 | Low | 11:30:29 - 11:45:52 | 5837 |
| Searchlight/Boulder City | 11:38:12 | -37.4 | Dark | Down | 27.4 | 282.3 | Low | 11:30:30 - 11:45:53 | 5827 |
| Laughlin/Bullhead City | 11:38:11 | -37.1 | Dark | Down | 27.1 | 282.6 | Low | 11:30:29 - 11:45:52 | 5815 |
| Lone Pine | 11:38:18 | -39.7 | Dark | Down | 30.1 | 280.1 | Up | 11:30:36 - 11:45:59 | 5804 |
| Mohave Valley | 11:38:10 | -37.1 | Dark | Down | 27.0 | 282.8 | Low | 11:30:28 - 11:45:51 | 5792 |
| Lake Havasu City | 11:38:09 | -36.9 | Dark | Down | 26.7 | 283.1 | Low | 11:30:27 - 11:45:50 | 5767 |
| Parker | 11:38:07 | -36.9 | Dark | Down | 26.6 | 283.3 | Low | 11:30:26 - 11:45:49 | 5738 |
| Blythe | 11:38:06 | -37.2 | Dark | Down | 26.8 | 283.4 | Low | 11:30:25 - 11:45:48 | 5681 |
| Idyllwild | 11:38:09 | -39.0 | Dark | Down | 28.5 | 282.4 | Low | 11:30:27 - 11:45:50 | 5608 |
| Calipatria | 11:38:06 | -38.0 | Dark | Down | 27.4 | 283.2 | Low | 11:30:25 - 11:45:48 | 5602 |
| Yuma | 11:38:04 | -37.3 | Dark | Down | 26.6 | 283.8 | Low | 11:30:22 - 11:45:45 | 5599 |
| CPSLO | 11:38:18 | -42.0 | Dark | Down | 32.0 | 279.6 | Up | 11:30:37 - 11:46:00 | 5594 |
| Wildwood | 11:38:12 | -40.5 | Dark | Down | 30.1 | 281.3 | Up | 11:30:31 - 11:45:54 | 5566 |
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 14YG50, (2020/01/30 11:41UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 3.14 102 77Kap Gem 07:44:26.8 +24:23:52 3.6 0.59 102 PPM 097838 07:41:03.1 +24:57:54 7.6 0.50 101 PPM 097896 07:43:43.4 +25:07:17 10.5 0.23 102 14YG50 07:43:14.6 +24:55:13 15.7 102 Positions are for J2000
Event circumstances last updated at 2019/01/18 19:44:32 UT
Marc W. Buie, Southwest Research Institute