Event between 05JB186 and star UC4-367-075784 with event index number of 98679
Geocentric closest approach at 2017/07/21 07:15:21 UTC
J2000 position of star is 16:46:36.2 -16:44:14
Equinox of date position of star is 16:47:36.2 -16:46:03
Stellar brightness R=15.0,
use SENSEUP=128
Star is 163 degrees from the moon.
Moon is 7% illuminated.
TNO apparent brightness V=23.6
[RECON map]
TNO is 37.3 AU from the Sun
and 36.6 AU from the Earth.
The TNO is moving 15.4
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 620 seconds.
The 1-sigma cross-track error in the shadow position is
2581 km.
The sky-plane scale is
26557.4 km/arcsec.
The TNO has an absolute magnitude Hv=7.8
Diameter=167.5 km assuming a 5% albedo -- 10.9 sec chord
Diameter=68.4 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is SCATEXTD
Star training set for 05JB186, (2017/07/21 07:15UT) Object RA Dec mag sep mel Antares 16:30:29.2 -26:28:10 0.9 10.48 158 35Eta Oph 17:11:23.2 -15:44:44 2.6 5.80 168 PPM 232198 16:50:28.0 -15:41:51 6.3 1.27 163 PPM 232134 16:47:06.1 -16:55:53 8.4 0.20 163 PPM 232142 16:47:31.8 -16:37:18 9.2 0.15 163 05JB186 16:47:36.8 -16:46:04 15.0 163 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
1.5 sigma about the mid-time.
The median site spacing is 15.4 km
RECON observability=0.8 and success probability=7.7%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 07:13:18 | -19.7 | Dark | Down | 16.8 | 216.5 | Really Low | 06:58:18 - 07:28:18 | 2766 |
| Tonasket | 07:13:17 | -20.0 | Dark | Down | 17.0 | 216.5 | Really Low | 06:58:17 - 07:28:17 | 2756 |
| Okanogan | 07:13:16 | -20.3 | Dark | Down | 17.3 | 216.5 | Really Low | 06:58:16 - 07:28:16 | 2741 |
| Brewster | 07:13:16 | -20.5 | Dark | Down | 17.6 | 216.3 | Really Low | 06:58:16 - 07:28:16 | 2730 |
| Manson/Chelan | 07:13:17 | -20.6 | Dark | Down | 17.9 | 216.0 | Really Low | 06:58:17 - 07:28:17 | 2723 |
| Entiat | 07:13:16 | -20.8 | Dark | Down | 18.1 | 216.0 | Really Low | 06:58:16 - 07:28:16 | 2713 |
| Wenatchee | 07:13:16 | -21.1 | Dark | Down | 18.4 | 216.0 | Really Low | 06:58:16 - 07:28:16 | 2701 |
| Ellensburg | 07:13:16 | -21.4 | Dark | Down | 18.8 | 215.8 | Really Low | 06:58:16 - 07:28:16 | 2683 |
| Yakima | 07:13:14 | -21.8 | Dark | Down | 19.1 | 215.9 | Really Low | 06:58:14 - 07:28:14 | 2663 |
| Toppenish/White Swan | 07:13:13 | -22.1 | Dark | Down | 19.2 | 216.1 | Really Low | 06:58:13 - 07:28:13 | 2651 |
| Pasco | 07:13:07 | -22.4 | Dark | Down | 18.8 | 217.3 | Really Low | 06:58:07 - 07:28:07 | 2637 |
| Goldendale | 07:13:12 | -22.5 | Dark | Down | 19.9 | 215.8 | Really Low | 06:58:12 - 07:28:12 | 2627 |
| PNWRO | 07:13:05 | -22.7 | Dark | Down | 18.9 | 217.5 | Really Low | 06:58:05 - 07:28:05 | 2623 |
| George/Umatilla | 07:13:07 | -22.7 | Dark | Down | 19.2 | 217.1 | Really Low | 06:58:07 - 07:28:07 | 2622 |
| The Dalles | 07:13:13 | -22.7 | Dark | Down | 20.2 | 215.5 | Low | 06:58:13 - 07:28:13 | 2617 |
| Maupin | 07:13:11 | -23.1 | Dark | Down | 20.5 | 215.7 | Low | 06:58:11 - 07:28:11 | 2596 |
| Madras/Culver | 07:13:10 | -23.6 | Dark | Down | 20.9 | 215.8 | Low | 06:58:10 - 07:28:10 | 2568 |
| Sisters | 07:13:11 | -23.9 | Dark | Down | 21.4 | 215.4 | Low | 06:58:11 - 07:28:11 | 2553 |
| Redmond | 07:13:09 | -24.0 | Dark | Down | 21.3 | 215.8 | Low | 06:58:09 - 07:28:09 | 2549 |
| Bend | 07:13:09 | -24.2 | Dark | Down | 21.5 | 215.7 | Low | 06:58:09 - 07:28:09 | 2539 |
| Oregon Observatory | 07:13:09 | -24.3 | Dark | Down | 21.7 | 215.6 | Low | 06:58:09 - 07:28:09 | 2531 |
| La Pine/Gilchrist | 07:13:09 | -24.5 | Dark | Down | 21.9 | 215.6 | Low | 06:58:09 - 07:28:09 | 2520 |
| North Lake | 07:13:04 | -25.0 | Dark | Down | 22.0 | 216.3 | Low | 06:58:04 - 07:28:04 | 2493 |
| Chiloquin | 07:13:07 | -25.5 | Dark | Down | 22.9 | 215.6 | Low | 06:58:07 - 07:28:07 | 2461 |
| Paisley | 07:13:01 | -25.6 | Dark | Down | 22.3 | 216.7 | Low | 06:58:01 - 07:28:01 | 2460 |
| Klamath Falls | 07:13:05 | -25.8 | Dark | Down | 23.2 | 215.7 | Low | 06:58:05 - 07:28:05 | 2442 |
| Lakeview | 07:12:59 | -26.1 | Dark | Down | 22.6 | 217.0 | Low | 06:57:59 - 07:27:59 | 2430 |
| Tulelake | 07:13:03 | -26.1 | Dark | Down | 23.3 | 216.1 | Low | 06:58:03 - 07:28:03 | 2425 |
| Cedarville | 07:12:56 | -26.8 | Dark | Down | 23.1 | 217.4 | Low | 06:57:56 - 07:27:56 | 2392 |
| Fall River/Burney | 07:13:00 | -27.0 | Dark | Down | 24.0 | 216.4 | Low | 06:58:00 - 07:28:00 | 2372 |
| Susanville | 07:12:54 | -27.8 | Dark | Down | 24.2 | 217.2 | Low | 06:57:54 - 07:27:54 | 2330 |
| Greenville | 07:12:55 | -28.0 | Dark | Down | 24.5 | 217.0 | Low | 06:57:55 - 07:27:55 | 2315 |
| Gimple | 07:12:55 | -28.0 | Dark | Down | 24.5 | 217.1 | Low | 06:57:55 - 07:27:55 | 2314 |
| Quincy | 07:12:55 | -28.2 | Dark | Down | 24.7 | 217.1 | Low | 06:57:55 - 07:27:55 | 2303 |
| Portola | 07:12:52 | -28.4 | Dark | Down | 24.6 | 217.5 | Low | 06:57:52 - 07:27:52 | 2292 |
| Reno | 07:12:49 | -28.8 | Dark | Down | 24.5 | 218.2 | Low | 06:57:49 - 07:27:49 | 2272 |
| Carson City | 07:12:47 | -29.1 | Dark | Down | 24.7 | 218.3 | Low | 06:57:47 - 07:27:47 | 2249 |
| Gardnerville | 07:12:46 | -29.4 | Dark | Down | 24.9 | 218.4 | Low | 06:57:46 - 07:27:46 | 2234 |
| Yerington | 07:12:43 | -29.4 | Dark | Down | 24.6 | 218.9 | Low | 06:57:43 - 07:27:43 | 2233 |
| Hawthorne | 07:12:40 | -30.0 | Dark | Down | 24.7 | 219.5 | Low | 06:57:40 - 07:27:40 | 2200 |
| Lee Vining | 07:12:40 | -30.4 | Dark | Down | 25.4 | 219.2 | Low | 06:57:40 - 07:27:40 | 2168 |
| Tonopah | 07:12:32 | -30.7 | Dark | Down | 24.4 | 220.9 | Low | 06:57:32 - 07:27:32 | 2159 |
| Niwot | 07:11:50 | -29.5 | Dark | Down | 16.3 | 230.3 | Really Low | 06:56:50 - 07:26:50 | 2156 |
| Bishop | 07:12:36 | -31.2 | Dark | Down | 25.5 | 220.1 | Low | 06:57:36 - 07:27:36 | 2124 |
| Beatty | 07:12:27 | -31.9 | Dark | Down | 25.0 | 221.6 | Low | 06:57:27 - 07:27:27 | 2080 |
| Lone Pine | 07:12:32 | -32.0 | Dark | Down | 25.9 | 220.6 | Low | 06:57:32 - 07:27:32 | 2071 |
| Indian Springs | 07:12:21 | -32.4 | Dark | Down | 24.7 | 222.6 | Low | 06:57:21 - 07:27:21 | 2048 |
| Henderson | 07:12:16 | -33.0 | Dark | Down | 24.7 | 223.4 | Low | 06:57:16 - 07:27:16 | 2006 |
| CPSLO | 07:12:40 | -32.7 | Dark | Down | 28.2 | 218.7 | Low | 06:57:40 - 07:27:40 | 2005 |
| Searchlight/Boulder City | 07:12:13 | -33.5 | Dark | Down | 25.1 | 223.6 | Low | 06:57:13 - 07:27:13 | 1967 |
| Patrick | 07:12:09 | -33.7 | Dark | Down | 24.5 | 224.5 | Low | 06:57:09 - 07:27:09 | 1953 |
| Laughlin/Bullhead City | 07:12:11 | -33.9 | Dark | Down | 25.1 | 224.0 | Low | 06:57:11 - 07:27:11 | 1943 |
| Kingman/Dolan Springs | 07:12:09 | -33.9 | Dark | Down | 24.8 | 224.4 | Low | 06:57:09 - 07:27:09 | 1940 |
| DCO | 07:12:05 | -34.1 | Dark | Down | 24.4 | 225.2 | Low | 06:57:05 - 07:27:05 | 1925 |
| Mohave Valley | 07:12:10 | -34.2 | Dark | Down | 25.3 | 224.1 | Low | 06:57:10 - 07:27:10 | 1924 |
| Wildwood | 07:12:26 | -34.3 | Dark | Down | 28.1 | 220.9 | Low | 06:57:26 - 07:27:26 | 1906 |
| Lake Havasu City | 07:12:08 | -34.6 | Dark | Down | 25.5 | 224.4 | Low | 06:57:08 - 07:27:08 | 1894 |
| Parker | 07:12:06 | -34.9 | Dark | Down | 25.7 | 224.6 | Low | 06:57:06 - 07:27:06 | 1869 |
| Idyllwild | 07:12:17 | -35.0 | Dark | Down | 27.3 | 222.7 | Low | 06:57:17 - 07:27:17 | 1865 |
| Blythe | 07:12:06 | -35.4 | Dark | Down | 26.2 | 224.5 | Low | 06:57:06 - 07:27:06 | 1835 |
| Calipatria | 07:12:09 | -35.8 | Dark | Down | 27.1 | 223.9 | Low | 06:57:09 - 07:27:09 | 1810 |
| Yuma | 07:12:03 | -36.3 | Dark | Down | 26.9 | 224.8 | Low | 06:57:03 - 07:27:03 | 1770 |
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 05JB186, (2017/07/21 07:15UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 10.48 158 35Eta Oph 17:10:22.7 -15:43:29 2.6 5.80 168 PPM 232198 16:49:27.7 -15:40:05 6.3 1.27 163 PPM 232134 16:46:05.4 -16:54:03 8.4 0.20 163 PPM 232142 16:46:31.1 -16:35:27 9.2 0.15 163 05JB186 16:46:36.2 -16:44:14 15.0 163 Positions are for J2000
Event circumstances last updated at 2017/05/14 18:35:30 UT
Marc W. Buie, Southwest Research Institute