Event between 13WV107 and star UC4-591-021444 with event index number of 58580
Geocentric closest approach at 2015/12/01 08:02:12 UTC
J2000 position of star is 05:44:24.1 +28:00:59
Equinox of date position of star is 05:45:24.2 +28:01:20
Stellar brightness R=15.6
Star is 51 degrees from the moon.
Moon is 69% illuminated.
TNO apparent brightness V=20.8
[RECON map]
TNO is 11.7 AU from the Sun
and 10.7 AU from the Earth.
The TNO is moving 20.3
km/sec on the sky relative to the star, or,
9.4 arcsec/hr.
The 1-sigma error in the time of the event is 104 seconds.
The 1-sigma cross-track error in the shadow position is
963 km.
The TNO has an absolute magnitude Hv=10.1
Diameter=58.3 km assuming a 5% albedo -- 2.9 sec chord
Diameter=23.8 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is CENTAURR
Star training set for 13WV107, (2015/12/01 08:02UT) Object RA Dec mag sep mel Aldebaran 04:36:50.1 +16:32:24 0.8 19.54 67 Alnath 05:27:18.0 +28:37:10 1.6 4.03 55 PPM 094619 05:40:19.1 +29:13:23 5.9 1.64 52 PPM 094771 05:45:21.2 +27:44:14 8.4 0.29 51 PPM 094776 05:45:33.8 +28:08:29 9.8 0.12 51 13WV107 05:45:24.3 +28:01:20 15.6 50 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 24.7 km
RECON observability=1.0 and success probability=41.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 08:02:46 | -62.6 | Dark | Up | 66.1 | 145.7 | Up | 07:53:36 - 08:11:55 | 1762 |
| Tonasket | 08:02:46 | -62.9 | Dark | Up | 66.3 | 145.4 | Up | 07:53:36 - 08:11:55 | 1739 |
| Okanogan | 08:02:47 | -63.2 | Dark | Up | 66.5 | 144.7 | Up | 07:53:37 - 08:11:56 | 1709 |
| Brewster | 08:02:48 | -63.5 | Dark | Up | 66.7 | 143.9 | Up | 07:53:39 - 08:11:58 | 1687 |
| Manson/Chelan | 08:02:50 | -63.7 | Dark | Up | 66.7 | 142.9 | Up | 07:53:41 - 08:12:00 | 1674 |
| Entiat | 08:02:50 | -64.0 | Dark | Up | 66.8 | 142.4 | Up | 07:53:41 - 08:12:00 | 1654 |
| Wenatchee | 08:02:51 | -64.2 | Dark | Up | 67.0 | 141.9 | Up | 07:53:42 - 08:12:01 | 1632 |
| Ellensburg | 08:02:53 | -64.7 | Dark | Up | 67.2 | 140.9 | Up | 07:53:43 - 08:12:02 | 1596 |
| Yakima | 08:02:54 | -65.1 | Dark | Up | 67.5 | 140.2 | Up | 07:53:44 - 08:12:03 | 1556 |
| Toppenish/White Swan | 08:02:54 | -65.3 | Dark | Up | 67.8 | 140.2 | Up | 07:53:44 - 08:12:03 | 1531 |
| Pasco | 08:02:50 | -65.3 | Dark | Up | 68.4 | 142.6 | Up | 07:53:40 - 08:11:59 | 1491 |
| Pacific NW Region. Obs. | 08:02:49 | -65.5 | Dark | Up | 68.7 | 142.7 | Up | 07:53:40 - 08:11:59 | 1461 |
| Umatilla | 08:02:51 | -65.6 | Dark | Up | 68.6 | 141.6 | Up | 07:53:41 - 08:12:00 | 1462 |
| Goldendale | 08:02:56 | -65.8 | Dark | Up | 68.0 | 138.5 | Up | 07:53:46 - 08:12:05 | 1486 |
| The Dalles | 08:02:57 | -66.1 | Dark | Up | 68.0 | 137.4 | Up | 07:53:48 - 08:12:07 | 1472 |
| Maupin | 08:02:58 | -66.5 | Dark | Up | 68.4 | 136.9 | Up | 07:53:48 - 08:12:07 | 1428 |
| Madras/Culver | 08:02:59 | -67.0 | Dark | Up | 68.8 | 135.9 | Up | 07:53:49 - 08:12:08 | 1375 |
| Sisters | 08:03:01 | -67.4 | Dark | Up | 68.8 | 134.4 | Up | 07:53:52 - 08:12:11 | 1352 |
| Redmond | 08:03:00 | -67.4 | Dark | Up | 69.0 | 135.1 | Up | 07:53:51 - 08:12:10 | 1340 |
| Bend | 08:03:01 | -67.6 | Dark | Up | 69.1 | 134.4 | Up | 07:53:51 - 08:12:10 | 1322 |
| Oregon Observatory | 08:03:01 | -67.8 | Dark | Up | 69.1 | 133.9 | Up | 07:53:52 - 08:12:11 | 1308 |
| LaPine/Gilchrist | 08:03:02 | -68.0 | Dark | Up | 69.2 | 133.3 | Up | 07:53:52 - 08:12:11 | 1289 |
| North Lake | 08:03:01 | -68.4 | Dark | Up | 69.8 | 133.7 | Up | 07:53:51 - 08:12:10 | 1231 |
| Paisley | 08:03:01 | -68.9 | Dark | Up | 70.4 | 133.4 | Up | 07:53:51 - 08:12:10 | 1167 |
| Chiloquin | 08:03:06 | -69.1 | Dark | Up | 69.8 | 130.5 | Up | 07:53:56 - 08:12:15 | 1186 |
| Klamath Falls | 08:03:06 | -69.5 | Dark | Up | 70.1 | 129.9 | Up | 07:53:56 - 08:12:15 | 1150 |
| Lakeview | 08:03:01 | -69.4 | Dark | Up | 70.9 | 132.7 | Up | 07:53:51 - 08:12:10 | 1111 |
| Tulelake | 08:03:05 | -69.7 | Dark | Up | 70.4 | 129.9 | Up | 07:53:56 - 08:12:15 | 1115 |
| Cedarville | 08:03:01 | -70.0 | Dark | Up | 71.4 | 131.7 | Up | 07:53:52 - 08:12:11 | 1040 |
| Fall River/Burney | 08:03:07 | -70.6 | Dark | Up | 71.0 | 128.1 | Up | 07:53:58 - 08:12:17 | 1021 |
| Susanville | 08:03:05 | -71.2 | Dark | Up | 71.9 | 128.1 | Up | 07:53:55 - 08:12:14 | 938 |
| Greenville | 08:03:07 | -71.5 | Dark | Up | 71.8 | 126.8 | Up | 07:53:58 - 08:12:17 | 917 |
| Niwot | 08:02:05 | -66.0 | Dark | Up | 77.9 | 176.3 | Up | 07:52:55 - 08:11:14 | 595 |
| Quincy | 08:03:07 | -71.7 | Dark | Up | 72.0 | 126.4 | Up | 07:53:58 - 08:12:17 | 896 |
| Portola | 08:03:05 | -71.8 | Dark | Up | 72.3 | 127.0 | Up | 07:53:56 - 08:12:15 | 872 |
| Reno | 08:03:04 | -71.9 | Dark | Up | 72.9 | 127.7 | Up | 07:53:54 - 08:12:13 | 828 |
| Carson City | 08:03:04 | -72.3 | Dark | Up | 73.1 | 126.8 | Up | 07:53:55 - 08:12:14 | 791 |
| Yerington | 08:03:02 | -72.4 | Dark | Up | 73.6 | 127.7 | Up | 07:53:52 - 08:12:11 | 755 |
| Gardnerville | 08:03:04 | -72.5 | Dark | Up | 73.3 | 126.3 | Up | 07:53:55 - 08:12:14 | 764 |
| Hawthorne | 08:03:01 | -72.7 | Dark | Up | 74.2 | 127.6 | Up | 07:53:51 - 08:12:10 | 694 |
| Lee Vining | 08:03:04 | -73.4 | Dark | Up | 74.3 | 124.9 | Up | 07:53:54 - 08:12:13 | 647 |
| Tonopah | 08:02:56 | -72.8 | Dark | Up | 75.4 | 129.7 | Up | 07:53:47 - 08:12:06 | 612 |
| Bishop | 08:03:01 | -73.8 | Dark | Up | 75.1 | 124.7 | Up | 07:53:52 - 08:12:11 | 567 |
| Lone Pine | 08:03:01 | -74.4 | Dark | Up | 75.7 | 123.1 | Up | 07:53:52 - 08:12:11 | 480 |
| Beatty | 08:02:56 | -73.8 | Dark | Up | 76.4 | 127.2 | Up | 07:53:47 - 08:12:06 | 479 |
| Indian Springs | 08:02:53 | -73.7 | Dark | Up | 77.3 | 129.0 | Up | 07:53:43 - 08:12:02 | 420 |
| Henderson | 08:02:50 | -73.9 | Dark | Up | 78.0 | 129.1 | Up | 07:53:41 - 08:12:00 | 348 |
| Searchlight/Boulder City | 08:02:51 | -74.4 | Dark | Up | 78.4 | 127.1 | Up | 07:53:41 - 08:12:00 | 285 |
| San Luis Obispo | 08:03:15 | -76.2 | Dark | Up | 74.5 | 113.6 | Up | 07:54:05 - 08:12:24 | 410 |
| Kingman/Dolan Springs | 08:02:48 | -74.2 | Dark | Up | 79.1 | 128.7 | Up | 07:53:38 - 08:11:57 | 237 |
| Laughlin/Bullhead City | 08:02:50 | -74.5 | Dark | Up | 78.8 | 127.0 | Up | 07:53:41 - 08:12:00 | 246 |
| DCO | 08:02:44 | -73.9 | Dark | Up | 79.7 | 131.3 | Up | 07:53:34 - 08:11:53 | 208 |
| Mohave Valley | 08:02:50 | -74.7 | Dark | Up | 79.0 | 125.9 | Up | 07:53:41 - 08:12:00 | 217 |
| Lake Havasu City | 08:02:50 | -74.9 | Dark | Up | 79.4 | 124.9 | Up | 07:53:40 - 08:11:59 | 169 |
| Parker | 08:02:50 | -75.2 | Dark | Up | 79.6 | 123.5 | Up | 07:53:41 - 08:12:00 | 130 |
| Idyllwild | 08:03:01 | -76.6 | Dark | Up | 78.1 | 115.4 | Up | 07:53:51 - 08:12:10 | 145 |
| Blythe | 08:02:52 | -75.8 | Dark | Up | 79.7 | 120.2 | Up | 07:53:43 - 08:12:02 | 83 |
| Calipatria | 08:02:57 | -76.6 | Dark | Up | 79.2 | 115.4 | Up | 07:53:47 - 08:12:06 | 51 |
| Yuma | 08:02:54 | -76.5 | Dark | Up | 80.1 | 115.5 | Up | 07:53:44 - 08:12:03 | -16 |
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.
Event circumstances last updated at 2015/11/21 21:54:49 UT
Marc W. Buie, Southwest Research Institute