Event between 00JF81 and star UC4-353-079132 with event index number of 76632
Geocentric closest approach at 2017/04/27 08:37:43 UTC
J2000 position of star is 16:12:22.0 -19:30:30
Equinox of date position of star is 16:13:22.6 -19:33:07
Stellar brightness R=15.5,
use SENSEUP=128
Star is 164 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=23.6
[RECON map]
TNO is 43.7 AU from the Sun
and 42.8 AU from the Earth.
The TNO is moving 21.4
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 585 seconds.
The 1-sigma cross-track error in the shadow position is
5251 km.
The sky-plane scale is
31063.0 km/arcsec.
The TNO has an absolute magnitude Hv=7.2
Diameter=221.8 km assuming a 5% albedo -- 10.4 sec chord
Diameter=90.6 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 00JF81, (2017/04/27 08:38UT) Object RA Dec mag sep mel Antares 16:30:28.3 -26:28:08 0.9 7.96 157 8Bet1Sco 16:06:26.8 -19:51:06 2.6 1.66 166 PPM 231334 16:12:59.1 -19:29:37 6.2 0.11 164 PPM 231346 16:13:22.5 -19:37:21 7.9 0.07 164 00JF81 16:13:22.6 -19:33:07 15.5 164 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 12.4 km
RECON observability=1.0 and success probability=1.7%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 08:39:31 | -26.4 | Dark | Down | 19.9 | 162.8 | Really Low | 08:24:31 - 08:54:31 | 10810 |
| Tonasket | 08:39:32 | -26.6 | Dark | Down | 20.1 | 162.8 | Low | 08:24:32 - 08:54:32 | 10800 |
| Okanogan | 08:39:32 | -26.9 | Dark | Down | 20.4 | 162.6 | Low | 08:24:32 - 08:54:32 | 10781 |
| Brewster | 08:39:32 | -27.2 | Dark | Down | 20.6 | 162.4 | Low | 08:24:32 - 08:54:32 | 10764 |
| Manson/Chelan | 08:39:33 | -27.5 | Dark | Down | 20.7 | 162.0 | Low | 08:24:33 - 08:54:33 | 10746 |
| Entiat | 08:39:34 | -27.7 | Dark | Down | 20.9 | 161.9 | Low | 08:24:34 - 08:54:34 | 10734 |
| Wenatchee | 08:39:34 | -28.0 | Dark | Down | 21.2 | 161.8 | Low | 08:24:34 - 08:54:34 | 10719 |
| Ellensburg | 08:39:35 | -28.4 | Dark | Down | 21.5 | 161.5 | Low | 08:24:35 - 08:54:35 | 10694 |
| Pasco | 08:39:31 | -28.9 | Dark | Down | 22.5 | 162.8 | Low | 08:24:31 - 08:54:31 | 10688 |
| PNWRO | 08:39:32 | -29.2 | Dark | Down | 22.8 | 163.0 | Low | 08:24:32 - 08:54:32 | 10681 |
| Yakima | 08:39:35 | -28.8 | Dark | Down | 21.9 | 161.5 | Low | 08:24:35 - 08:54:35 | 10673 |
| Toppenish/White Swan | 08:39:36 | -29.0 | Dark | Down | 22.1 | 161.6 | Low | 08:24:36 - 08:54:36 | 10666 |
| George/Umatilla | 08:39:31 | -29.3 | Dark | Down | 22.8 | 162.6 | Low | 08:24:31 - 08:54:31 | 10666 |
| Niwot | 08:38:42 | -31.1 | Dark | Down | 30.3 | 176.7 | Up | 08:23:42 - 08:53:42 | 10646 |
| Goldendale | 08:39:37 | -29.6 | Dark | Down | 22.6 | 161.1 | Low | 08:24:37 - 08:54:37 | 10629 |
| The Dalles | 08:39:38 | -29.9 | Dark | Down | 22.7 | 160.7 | Low | 08:24:38 - 08:54:38 | 10608 |
| Maupin | 08:39:38 | -30.3 | Dark | Down | 23.1 | 160.8 | Low | 08:24:38 - 08:54:38 | 10589 |
| Madras/Culver | 08:39:38 | -30.8 | Dark | Down | 23.6 | 160.7 | Low | 08:24:38 - 08:54:38 | 10559 |
| Redmond | 08:39:41 | -31.2 | Dark | Down | 23.9 | 160.6 | Low | 08:24:41 - 08:54:41 | 10539 |
| Sisters | 08:39:41 | -31.2 | Dark | Down | 23.8 | 160.2 | Low | 08:24:41 - 08:54:41 | 10531 |
| Bend | 08:39:40 | -31.4 | Dark | Down | 24.1 | 160.4 | Low | 08:24:40 - 08:54:40 | 10524 |
| Oregon Observatory | 08:39:41 | -31.6 | Dark | Down | 24.2 | 160.2 | Low | 08:24:41 - 08:54:41 | 10511 |
| La Pine/Gilchrist | 08:39:40 | -31.8 | Dark | Down | 24.4 | 160.1 | Low | 08:24:40 - 08:54:40 | 10499 |
| North Lake | 08:39:38 | -32.1 | Dark | Down | 25.0 | 160.7 | Low | 08:24:38 - 08:54:38 | 10489 |
| Paisley | 08:39:38 | -32.6 | Dark | Down | 25.6 | 161.0 | Low | 08:24:38 - 08:54:38 | 10466 |
| Lakeview | 08:39:38 | -33.1 | Dark | Down | 26.1 | 161.1 | Low | 08:24:38 - 08:54:38 | 10442 |
| Chiloquin | 08:39:42 | -32.9 | Dark | Down | 25.4 | 159.6 | Low | 08:24:42 - 08:54:42 | 10428 |
| Klamath Falls | 08:39:43 | -33.3 | Dark | Down | 25.7 | 159.6 | Low | 08:24:43 - 08:54:43 | 10410 |
| Cedarville | 08:39:37 | -33.7 | Dark | Down | 26.8 | 161.1 | Low | 08:24:37 - 08:54:37 | 10408 |
| Tulelake | 08:39:42 | -33.5 | Dark | Down | 26.0 | 159.9 | Low | 08:24:42 - 08:54:42 | 10402 |
| Fall River/Burney | 08:39:42 | -34.4 | Dark | Down | 26.9 | 159.8 | Low | 08:24:42 - 08:54:42 | 10350 |
| Susanville | 08:39:39 | -34.9 | Dark | Down | 27.7 | 160.5 | Low | 08:24:39 - 08:54:39 | 10331 |
| Gimple | 08:39:41 | -35.2 | Dark | Down | 27.9 | 160.2 | Low | 08:24:41 - 08:54:41 | 10308 |
| Greenville | 08:39:41 | -35.2 | Dark | Down | 27.9 | 160.1 | Low | 08:24:41 - 08:54:41 | 10307 |
| Portola | 08:39:40 | -35.4 | Dark | Down | 28.3 | 160.6 | Low | 08:24:40 - 08:54:40 | 10299 |
| Reno | 08:39:37 | -35.6 | Dark | Down | 28.7 | 161.2 | Low | 08:24:37 - 08:54:37 | 10298 |
| Quincy | 08:39:41 | -35.4 | Dark | Down | 28.1 | 160.1 | Low | 08:24:41 - 08:54:41 | 10294 |
| Yerington | 08:39:35 | -36.0 | Dark | Down | 29.4 | 161.7 | Low | 08:24:35 - 08:54:35 | 10280 |
| Carson City | 08:39:37 | -35.9 | Dark | Down | 29.1 | 161.1 | Low | 08:24:37 - 08:54:37 | 10277 |
| Tonopah | 08:39:28 | -36.5 | Dark | Down | 30.8 | 163.6 | Up | 08:24:28 - 08:54:28 | 10270 |
| Hawthorne | 08:39:34 | -36.4 | Dark | Down | 30.0 | 162.2 | Low | 08:24:34 - 08:54:34 | 10264 |
| Gardnerville | 08:39:38 | -36.2 | Dark | Down | 29.3 | 161.1 | Low | 08:24:38 - 08:54:38 | 10263 |
| Lee Vining | 08:39:35 | -37.0 | Dark | Down | 30.4 | 161.6 | Up | 08:24:35 - 08:54:35 | 10217 |
| Indian Springs | 08:39:22 | -37.6 | Dark | Down | 32.5 | 165.0 | Up | 08:24:22 - 08:54:22 | 10212 |
| Beatty | 08:39:26 | -37.5 | Dark | Down | 32.0 | 163.9 | Up | 08:24:26 - 08:54:26 | 10207 |
| Bishop | 08:39:32 | -37.5 | Dark | Down | 31.1 | 162.2 | Up | 08:24:32 - 08:54:32 | 10197 |
| Henderson | 08:39:20 | -37.9 | Dark | Down | 33.2 | 165.7 | Up | 08:24:20 - 08:54:20 | 10193 |
| Patrick | 08:39:16 | -38.2 | Dark | Down | 34.0 | 166.8 | Up | 08:24:16 - 08:54:16 | 10179 |
| DCO | 08:39:12 | -38.3 | Dark | Down | 34.4 | 167.5 | Up | 08:24:12 - 08:54:12 | 10176 |
| Kingman/Dolan Springs | 08:39:16 | -38.5 | Dark | Down | 34.2 | 166.5 | Up | 08:24:16 - 08:54:16 | 10160 |
| Searchlight/Boulder City | 08:39:20 | -38.5 | Dark | Down | 33.7 | 165.6 | Up | 08:24:20 - 08:54:20 | 10158 |
| Lone Pine | 08:39:31 | -38.1 | Dark | Down | 32.0 | 162.5 | Up | 08:24:31 - 08:54:31 | 10156 |
| Laughlin/Bullhead City | 08:39:18 | -38.6 | Dark | Down | 34.1 | 166.0 | Up | 08:24:18 - 08:54:18 | 10146 |
| Mohave Valley | 08:39:18 | -38.9 | Dark | Down | 34.4 | 165.9 | Up | 08:24:18 - 08:54:18 | 10128 |
| Lake Havasu City | 08:39:17 | -39.2 | Dark | Down | 34.8 | 166.1 | Up | 08:24:17 - 08:54:17 | 10107 |
| Parker | 08:39:17 | -39.5 | Dark | Down | 35.1 | 166.1 | Up | 08:24:17 - 08:54:17 | 10084 |
| Blythe | 08:39:19 | -40.1 | Dark | Down | 35.6 | 165.7 | Up | 08:24:19 - 08:54:19 | 10041 |
| CPSLO | 08:39:41 | -39.9 | Dark | Down | 32.5 | 159.5 | Up | 08:24:41 - 08:54:41 | 10003 |
| Idyllwild | 08:39:27 | -40.6 | Dark | Down | 35.0 | 163.4 | Up | 08:24:27 - 08:54:27 | 9998 |
| Calipatria | 08:39:22 | -40.8 | Dark | Down | 35.9 | 164.5 | Up | 08:24:22 - 08:54:22 | 9984 |
| Yuma | 08:39:19 | -41.0 | Dark | Down | 36.5 | 165.5 | Up | 08:24:19 - 08:54:19 | 9977 |
| Wildwood | 08:39:34 | -40.7 | Dark | Down | 34.2 | 161.4 | Up | 08:24:34 - 08:54:34 | 9974 |
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 00JF81, (2017/04/27 08:38UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:55 0.9 7.96 157 8Bet1Sco 16:05:26.2 -19:48:20 2.6 1.66 166 PPM 231334 16:11:58.6 -19:27:00 6.2 0.11 164 PPM 231346 16:12:21.8 -19:34:45 7.9 0.07 164 00JF81 16:12:22.0 -19:30:30 15.5 164 Positions are for J2000
Event circumstances last updated at 2017/04/24 16:03:55 UT
Marc W. Buie, Southwest Research Institute