Event between 14WZ508 and star UC4-473-046251 with event index number of 141625
Geocentric closest approach at 2017/04/16 07:24:38 UTC
J2000 position of star is 10:52:09.8 +04:30:15
Equinox of date position of star is 10:53:02.3 +04:24:50
Stellar brightness R=15.1
Star is 100 degrees from the moon.
Moon is 78% illuminated.
TNO apparent brightness V=22.1
[RECON map]
TNO is 25.4 AU from the Sun
and 24.7 AU from the Earth.
The TNO is moving 15.2
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 208 seconds.
The 1-sigma cross-track error in the shadow position is
3936 km.
The sky-plane scale is
17904.3 km/arcsec.
The TNO has an absolute magnitude Hv=7.9
Diameter=159.2 km assuming a 5% albedo -- 10.5 sec chord
Diameter=65.0 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CENTAURR
Star training set for 14WZ508, (2017/04/16 07:25UT) Object RA Dec mag sep mel Regulus 10:09:17.5 +11:52:55 1.3 13.15 112 58 Leo 11:01:27.2 +03:31:27 4.8 2.27 97 PPM 157306 10:53:55.9 +04:52:11 8.2 0.51 100 PPM 157307 10:53:56.8 +04:23:33 11.5 0.22 100 14WZ508 10:53:03.5 +04:24:43 15.1 100 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
4.3 sigma about the mid-time.
The median site spacing is 16.1 km
RECON observability=1.0 and success probability=8.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 07:23:24 | -30.4 | Dark | Up | 37.5 | 223.2 | Up | 07:08:24 - 07:38:24 | 1136 |
| Tonasket | 07:23:23 | -30.6 | Dark | Up | 37.6 | 223.3 | Up | 07:08:23 - 07:38:23 | 1121 |
| Okanogan | 07:23:22 | -30.9 | Dark | Up | 38.0 | 223.3 | Up | 07:08:22 - 07:38:22 | 1096 |
| Brewster | 07:23:22 | -31.2 | Dark | Up | 38.3 | 223.2 | Up | 07:08:22 - 07:38:22 | 1075 |
| Manson/Chelan | 07:23:22 | -31.3 | Dark | Up | 38.6 | 222.9 | Up | 07:08:22 - 07:38:22 | 1054 |
| Entiat | 07:23:21 | -31.5 | Dark | Up | 38.8 | 223.0 | Up | 07:08:21 - 07:38:21 | 1038 |
| Wenatchee | 07:23:21 | -31.8 | Dark | Up | 39.0 | 223.0 | Up | 07:08:21 - 07:38:21 | 1019 |
| Ellensburg | 07:23:20 | -32.1 | Dark | Up | 39.4 | 223.0 | Up | 07:08:20 - 07:38:20 | 987 |
| Pasco | 07:23:11 | -33.0 | Dark | Up | 39.3 | 225.0 | Up | 07:08:11 - 07:38:11 | 963 |
| Yakima | 07:23:19 | -32.5 | Dark | Up | 39.7 | 223.2 | Up | 07:08:19 - 07:38:19 | 959 |
| PNWRO | 07:23:10 | -33.3 | Dark | Up | 39.3 | 225.3 | Up | 07:08:10 - 07:38:10 | 950 |
| Toppenish/White Swan | 07:23:17 | -32.8 | Dark | Up | 39.8 | 223.5 | Up | 07:08:17 - 07:38:17 | 947 |
| George/Umatilla | 07:23:11 | -33.3 | Dark | Up | 39.6 | 224.9 | Up | 07:08:11 - 07:38:11 | 935 |
| Goldendale | 07:23:17 | -33.3 | Dark | Up | 40.4 | 223.3 | Up | 07:08:17 - 07:38:17 | 901 |
| The Dalles | 07:23:18 | -33.4 | Dark | Up | 40.7 | 223.0 | Up | 07:08:18 - 07:38:18 | 878 |
| Maupin | 07:23:15 | -33.8 | Dark | Up | 41.0 | 223.4 | Up | 07:08:15 - 07:38:15 | 850 |
| Madras/Culver | 07:23:13 | -34.4 | Dark | Up | 41.4 | 223.6 | Up | 07:08:13 - 07:38:13 | 811 |
| Niwot | 07:21:51 | -39.4 | Dark | Up | 34.9 | 242.5 | Up | 07:06:51 - 07:36:51 | 791 |
| Redmond | 07:23:12 | -34.7 | Dark | Up | 41.7 | 223.8 | Up | 07:08:12 - 07:38:12 | 784 |
| Sisters | 07:23:14 | -34.6 | Dark | Up | 41.9 | 223.3 | Up | 07:08:14 - 07:38:14 | 778 |
| Bend | 07:23:11 | -34.9 | Dark | Up | 41.9 | 223.8 | Up | 07:08:11 - 07:38:11 | 766 |
| Oregon Observatory | 07:23:12 | -35.0 | Dark | Up | 42.1 | 223.7 | Up | 07:08:12 - 07:38:12 | 751 |
| La Pine/Gilchrist | 07:23:11 | -35.2 | Dark | Up | 42.3 | 223.8 | Up | 07:08:11 - 07:38:11 | 735 |
| North Lake | 07:23:07 | -35.8 | Dark | Up | 42.3 | 224.7 | Up | 07:08:07 - 07:38:07 | 715 |
| Paisley | 07:23:03 | -36.3 | Dark | Up | 42.5 | 225.5 | Up | 07:08:03 - 07:38:03 | 682 |
| Lakeview | 07:23:00 | -36.9 | Dark | Up | 42.8 | 226.0 | Up | 07:08:00 - 07:38:00 | 648 |
| Chiloquin | 07:23:08 | -36.3 | Dark | Up | 43.3 | 224.1 | Up | 07:08:08 - 07:38:08 | 646 |
| Klamath Falls | 07:23:07 | -36.6 | Dark | Up | 43.5 | 224.4 | Up | 07:08:07 - 07:38:07 | 622 |
| Tulelake | 07:23:04 | -36.9 | Dark | Up | 43.5 | 224.9 | Up | 07:08:04 - 07:38:04 | 607 |
| Cedarville | 07:22:57 | -37.5 | Dark | Up | 43.1 | 226.7 | Up | 07:07:57 - 07:37:57 | 602 |
| Fall River/Burney | 07:23:00 | -37.8 | Dark | Up | 44.1 | 225.6 | Up | 07:08:00 - 07:38:00 | 540 |
| Susanville | 07:22:55 | -38.5 | Dark | Up | 44.2 | 226.9 | Up | 07:07:55 - 07:37:55 | 507 |
| Gimple | 07:22:55 | -38.8 | Dark | Up | 44.5 | 226.8 | Up | 07:07:55 - 07:37:55 | 481 |
| Greenville | 07:22:56 | -38.8 | Dark | Up | 44.5 | 226.7 | Up | 07:07:56 - 07:37:56 | 479 |
| Portola | 07:22:52 | -39.2 | Dark | Up | 44.5 | 227.5 | Up | 07:07:52 - 07:37:52 | 464 |
| Quincy | 07:22:55 | -39.0 | Dark | Up | 44.7 | 226.9 | Up | 07:07:55 - 07:37:55 | 463 |
| Reno | 07:22:49 | -39.5 | Dark | Up | 44.3 | 228.4 | Up | 07:07:49 - 07:37:49 | 456 |
| Carson City | 07:22:47 | -39.9 | Dark | Up | 44.5 | 228.7 | Up | 07:07:47 - 07:37:47 | 429 |
| Yerington | 07:22:43 | -40.2 | Dark | Up | 44.3 | 229.5 | Up | 07:07:43 - 07:37:43 | 427 |
| Gardnerville | 07:22:45 | -40.1 | Dark | Up | 44.7 | 228.9 | Up | 07:07:45 - 07:37:45 | 410 |
| Hawthorne | 07:22:39 | -40.7 | Dark | Up | 44.3 | 230.5 | Up | 07:07:39 - 07:37:39 | 401 |
| Tonopah | 07:22:31 | -41.3 | Dark | Up | 43.7 | 232.3 | Up | 07:07:31 - 07:37:31 | 394 |
| Lee Vining | 07:22:39 | -41.2 | Dark | Up | 44.9 | 230.4 | Up | 07:07:39 - 07:37:39 | 346 |
| Bishop | 07:22:34 | -41.9 | Dark | Up | 44.9 | 231.6 | Up | 07:07:34 - 07:37:34 | 313 |
| Beatty | 07:22:24 | -42.5 | Dark | Up | 44.2 | 233.7 | Up | 07:07:24 - 07:37:24 | 311 |
| Indian Springs | 07:22:18 | -43.0 | Dark | Up | 43.7 | 235.0 | Up | 07:07:18 - 07:37:18 | 307 |
| Henderson | 07:22:12 | -43.6 | Dark | Up | 43.5 | 236.2 | Up | 07:07:12 - 07:37:12 | 279 |
| Lone Pine | 07:22:29 | -42.7 | Dark | Up | 45.2 | 232.5 | Up | 07:07:29 - 07:37:29 | 259 |
| Patrick | 07:22:05 | -44.3 | Dark | Up | 43.1 | 237.7 | Up | 07:07:05 - 07:37:05 | 252 |
| DCO | 07:22:02 | -44.6 | Dark | Up | 42.8 | 238.7 | Up | 07:07:02 - 07:37:02 | 242 |
| Searchlight/Boulder City | 07:22:11 | -44.1 | Dark | Up | 43.8 | 236.7 | Up | 07:07:11 - 07:37:11 | 234 |
| Kingman/Dolan Springs | 07:22:05 | -44.5 | Dark | Up | 43.4 | 237.7 | Up | 07:07:05 - 07:37:05 | 229 |
| Laughlin/Bullhead City | 07:22:07 | -44.5 | Dark | Up | 43.7 | 237.2 | Up | 07:07:07 - 07:37:07 | 216 |
| Mohave Valley | 07:22:06 | -44.7 | Dark | Up | 43.9 | 237.5 | Up | 07:07:06 - 07:37:06 | 194 |
| Lake Havasu City | 07:22:04 | -45.1 | Dark | Up | 43.9 | 238.0 | Up | 07:07:04 - 07:37:04 | 166 |
| Parker | 07:22:03 | -45.5 | Dark | Up | 44.1 | 238.3 | Up | 07:07:03 - 07:37:03 | 137 |
| CPSLO | 07:22:37 | -43.5 | Dark | Up | 47.6 | 230.7 | Up | 07:07:37 - 07:37:37 | 94 |
| Blythe | 07:22:02 | -46.0 | Dark | Up | 44.6 | 238.5 | Up | 07:07:02 - 07:37:02 | 87 |
| Idyllwild | 07:22:12 | -45.7 | Dark | Up | 46.0 | 236.3 | Up | 07:07:12 - 07:37:12 | 51 |
| Wildwood | 07:22:22 | -45.0 | Dark | Up | 47.0 | 234.0 | Up | 07:07:22 - 07:37:22 | 39 |
| Calipatria | 07:22:04 | -46.4 | Dark | Up | 45.5 | 238.0 | Up | 07:07:04 - 07:37:04 | 25 |
| Yuma | 07:21:59 | -46.9 | Dark | Up | 45.1 | 239.2 | Up | 07:06:59 - 07:36:59 | 8 |
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 14WZ508, (2017/04/16 07:25UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 13.15 112 58 Leo 11:00:33.7 +03:37:03 4.8 2.27 97 PPM 157306 10:53:02.2 +04:57:43 8.2 0.51 100 PPM 157307 10:53:03.1 +04:29:05 11.5 0.22 100 14WZ508 10:52:09.8 +04:30:15 15.1 100 Positions are for J2000
Event circumstances last updated at 2016/11/30 19:04:57 UT
Marc W. Buie, Southwest Research Institute