Event between (281371) 08FC76 and star UC4-565-008609 with event index number of 35340
Geocentric closest approach at 2016/11/23 11:55:36 UTC
J2000 position of star is 03:54:53.6 +22:48:17
Equinox of date position of star is 03:55:52.0 +22:51:07
Stellar brightness R=14.6
Star is 115 degrees from the moon.
Moon is 29% illuminated.
TNO apparent brightness V=19.3
[RECON map]
TNO is 10.6 AU from the Sun
and 9.6 AU from the Earth.
The TNO is moving 21.5
km/sec on the sky relative to the star, or,
11.1 arcsec/hr.
The 1-sigma error in the time of the event is 47 seconds.
The 1-sigma cross-track error in the shadow position is
595 km.
The sky-plane scale is
6957.3 km/arcsec.
The TNO has an absolute magnitude Hv=9.2
Diameter=87.1 km assuming a 5% albedo -- 4.0 sec chord
Diameter=35.6 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 281371, (2016/11/23 11:56UT) Object RA Dec mag sep mel Aldebaran 04:36:53.5 +16:32:31 0.8 11.52 106 44Zet Per 03:55:11.9 +31:55:57 2.8 9.08 112 32 Tau 03:57:52.2 +22:31:31 5.6 0.56 114 PPM 093052 03:55:44.8 +23:15:01 8.4 0.40 115 PPM 093085 03:57:29.0 +22:43:18 8.6 0.39 114 PPM 093067 03:56:32.6 +23:02:11 10.5 0.24 114 281371 03:55:53.7 +22:51:12 14.6 114 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 26.8 km
RECON observability=1.0 and success probability=67.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 11:51:48 | -33.6 | Dark | Up | 34.8 | 265.5 | Up | 11:47:21 - 11:56:15 | 1044 |
| Tonasket | 11:51:47 | -33.7 | Dark | Up | 34.8 | 265.7 | Up | 11:47:20 - 11:56:14 | 1019 |
| Okanogan | 11:51:47 | -33.8 | Dark | Up | 34.9 | 265.8 | Up | 11:47:20 - 11:56:14 | 982 |
| Brewster | 11:51:47 | -34.0 | Dark | Up | 35.1 | 265.8 | Up | 11:47:20 - 11:56:14 | 951 |
| Manson/Chelan | 11:51:47 | -34.2 | Dark | Up | 35.3 | 265.7 | Up | 11:47:20 - 11:56:14 | 926 |
| Entiat | 11:51:47 | -34.3 | Dark | Up | 35.4 | 265.8 | Up | 11:47:20 - 11:56:14 | 902 |
| Wenatchee | 11:51:47 | -34.4 | Dark | Up | 35.5 | 265.9 | Up | 11:47:20 - 11:56:14 | 874 |
| Ellensburg | 11:51:47 | -34.6 | Dark | Up | 35.7 | 266.0 | Up | 11:47:20 - 11:56:14 | 828 |
| Yakima | 11:51:46 | -34.7 | Dark | Up | 35.7 | 266.3 | Up | 11:47:19 - 11:56:13 | 784 |
| Toppenish/White Swan | 11:51:46 | -34.6 | Dark | Up | 35.6 | 266.6 | Up | 11:47:19 - 11:56:13 | 762 |
| Pasco | 11:51:43 | -33.7 | Dark | Up | 34.7 | 267.6 | Up | 11:47:16 - 11:56:10 | 761 |
| PNWRO | 11:51:42 | -33.6 | Dark | Up | 34.6 | 267.9 | Up | 11:47:15 - 11:56:09 | 737 |
| George/Umatilla | 11:51:43 | -33.9 | Dark | Up | 34.9 | 267.7 | Up | 11:47:16 - 11:56:10 | 723 |
| Goldendale | 11:51:46 | -34.9 | Dark | Up | 35.9 | 266.6 | Up | 11:47:19 - 11:56:13 | 699 |
| The Dalles | 11:51:46 | -35.2 | Dark | Up | 36.2 | 266.5 | Up | 11:47:19 - 11:56:13 | 672 |
| Maupin | 11:51:45 | -35.2 | Dark | Up | 36.1 | 266.9 | Up | 11:47:18 - 11:56:12 | 628 |
| Madras/Culver | 11:51:45 | -35.3 | Dark | Up | 36.2 | 267.3 | Up | 11:47:18 - 11:56:12 | 569 |
| Redmond | 11:51:45 | -35.3 | Dark | Up | 36.3 | 267.5 | Up | 11:47:18 - 11:56:12 | 529 |
| Sisters | 11:51:45 | -35.6 | Dark | Up | 36.5 | 267.2 | Up | 11:47:18 - 11:56:12 | 529 |
| Bend | 11:51:45 | -35.4 | Dark | Up | 36.4 | 267.6 | Up | 11:47:18 - 11:56:12 | 505 |
| Oregon Observatory | 11:51:45 | -35.6 | Dark | Up | 36.5 | 267.6 | Up | 11:47:18 - 11:56:12 | 485 |
| La Pine/Gilchrist | 11:51:45 | -35.6 | Dark | Up | 36.5 | 267.7 | Up | 11:47:18 - 11:56:12 | 463 |
| North Lake | 11:51:43 | -35.2 | Dark | Up | 36.1 | 268.4 | Up | 11:47:16 - 11:56:10 | 421 |
| Paisley | 11:51:41 | -35.0 | Dark | Up | 35.9 | 269.1 | Up | 11:47:14 - 11:56:08 | 364 |
| Chiloquin | 11:51:44 | -36.0 | Dark | Up | 36.8 | 268.3 | Up | 11:47:17 - 11:56:11 | 339 |
| Niwot | 11:51:11 | -23.5 | Dark | Up | 24.3 | 280.2 | Low | 11:46:44 - 11:55:38 | 321 |
| Lakeview | 11:51:41 | -34.9 | Dark | Up | 35.7 | 269.6 | Up | 11:47:14 - 11:56:08 | 311 |
| Klamath Falls | 11:51:44 | -35.9 | Dark | Up | 36.8 | 268.6 | Up | 11:47:17 - 11:56:11 | 302 |
| Tulelake | 11:51:43 | -35.7 | Dark | Up | 36.6 | 269.0 | Up | 11:47:16 - 11:56:10 | 276 |
| Cedarville | 11:51:39 | -34.8 | Dark | Up | 35.6 | 270.2 | Up | 11:47:12 - 11:56:06 | 241 |
| Fall River/Burney | 11:51:42 | -35.7 | Dark | Up | 36.5 | 269.7 | Up | 11:47:15 - 11:56:09 | 177 |
| Susanville | 11:51:39 | -35.2 | Dark | Up | 35.9 | 270.7 | Up | 11:47:12 - 11:56:06 | 116 |
| Greenville | 11:51:40 | -35.4 | Dark | Up | 36.2 | 270.7 | Up | 11:47:13 - 11:56:07 | 82 |
| Quincy | 11:51:40 | -35.5 | Dark | Up | 36.2 | 270.8 | Up | 11:47:13 - 11:56:07 | 60 |
| Portola | 11:51:38 | -35.1 | Dark | Up | 35.8 | 271.2 | Up | 11:47:11 - 11:56:05 | 53 |
| Reno | 11:51:37 | -34.6 | Dark | Up | 35.3 | 271.8 | Up | 11:47:10 - 11:56:04 | 28 |
| Carson City | 11:51:36 | -34.6 | Dark | Up | 35.3 | 272.1 | Up | 11:47:09 - 11:56:03 | -14 |
| Yerington | 11:51:35 | -34.1 | Dark | Up | 34.8 | 272.6 | Up | 11:47:08 - 11:56:02 | -28 |
| Gardnerville | 11:51:36 | -34.6 | Dark | Up | 35.2 | 272.3 | Up | 11:47:09 - 11:56:03 | -38 |
| Hawthorne | 11:51:34 | -33.7 | Dark | Up | 34.3 | 273.2 | Up | 11:47:07 - 11:56:01 | -71 |
| Tonopah | 11:51:30 | -32.6 | Dark | Up | 33.2 | 274.3 | Up | 11:47:03 - 11:55:57 | -105 |
| Lee Vining | 11:51:34 | -34.1 | Dark | Up | 34.7 | 273.3 | Up | 11:47:07 - 11:56:01 | -138 |
| Bishop | 11:51:32 | -33.5 | Dark | Up | 34.1 | 274.1 | Up | 11:47:05 - 11:55:59 | -195 |
| Beatty | 11:51:29 | -32.2 | Dark | Up | 32.8 | 275.4 | Up | 11:47:02 - 11:55:56 | -226 |
| Indian Springs | 11:51:26 | -31.3 | Dark | Up | 31.9 | 276.1 | Up | 11:46:59 - 11:55:53 | -247 |
| Lone Pine | 11:51:31 | -33.2 | Dark | Up | 33.8 | 274.8 | Up | 11:47:04 - 11:55:58 | -275 |
| Henderson | 11:51:24 | -30.7 | Dark | Up | 31.3 | 276.8 | Up | 11:46:57 - 11:55:51 | -295 |
| Patrick | 11:51:21 | -29.8 | Dark | Up | 30.3 | 277.8 | Up | 11:46:54 - 11:55:48 | -347 |
| Searchlight/Boulder City | 11:51:23 | -30.6 | Dark | Up | 31.1 | 277.2 | Up | 11:46:56 - 11:55:50 | -357 |
| DCO | 11:51:19 | -29.2 | Dark | Up | 29.7 | 278.3 | Low | 11:46:52 - 11:55:46 | -369 |
| Kingman/Dolan Springs | 11:51:22 | -29.9 | Dark | Up | 30.4 | 277.8 | Up | 11:46:55 - 11:55:49 | -374 |
| Laughlin/Bullhead City | 11:51:23 | -30.3 | Dark | Up | 30.8 | 277.6 | Up | 11:46:56 - 11:55:50 | -384 |
| Mohave Valley | 11:51:23 | -30.3 | Dark | Up | 30.8 | 277.7 | Up | 11:46:56 - 11:55:50 | -414 |
| CPSLO | 11:51:36 | -35.3 | Dark | Up | 35.7 | 274.3 | Up | 11:47:09 - 11:56:03 | -447 |
| Lake Havasu City | 11:51:22 | -30.1 | Dark | Up | 30.5 | 278.1 | Up | 11:46:55 - 11:55:49 | -454 |
| Parker | 11:51:21 | -30.0 | Dark | Up | 30.5 | 278.3 | Up | 11:46:54 - 11:55:48 | -492 |
| Blythe | 11:51:22 | -30.2 | Dark | Up | 30.6 | 278.5 | Up | 11:46:55 - 11:55:49 | -554 |
| Wildwood | 11:51:30 | -33.5 | Dark | Up | 34.0 | 276.2 | Up | 11:47:03 - 11:55:57 | -557 |
| Idyllwild | 11:51:26 | -32.0 | Dark | Up | 32.4 | 277.4 | Up | 11:46:59 - 11:55:53 | -572 |
| Calipatria | 11:51:23 | -30.9 | Dark | Up | 31.3 | 278.3 | Up | 11:46:56 - 11:55:50 | -622 |
| Yuma | 11:51:21 | -30.2 | Dark | Up | 30.5 | 279.0 | Up | 11:46:54 - 11:55:48 | -656 |
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 281371, (2016/11/23 11:56UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 11.52 106 44Zet Per 03:54:07.9 +31:53:01 2.8 9.08 112 32 Tau 03:56:52.2 +22:28:39 5.6 0.56 114 PPM 093052 03:54:44.6 +23:12:06 8.4 0.40 115 PPM 093085 03:56:28.9 +22:40:24 8.6 0.39 114 PPM 093067 03:55:32.4 +22:59:17 10.5 0.24 114 281371 03:54:53.6 +22:48:17 14.6 115 Positions are for J2000
Event circumstances last updated at 2016/06/06 17:35:44 UT
Marc W. Buie, Southwest Research Institute