Event between 15BF519 and star GA0800:04013753 with event index number of 300734
Geocentric closest approach at 2018/12/04 11:12:30 UTC
J2000 position of star is 10:42:29.5 -08:34:44
Equinox of date position of star is 10:43:26.1 -08:40:40
Stellar brightness G=14.3,
use SENSEUP=64
Star is 56 degrees from the moon.
Moon is 9% illuminated.
TNO apparent brightness V=22.3
[RECON map]
TNO is 27.6 AU from the Sun
and 27.6 AU from the Earth.
The TNO is moving 12.2
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 123 seconds.
The 1-sigma cross-track error in the shadow position is
1856 km.
The sky-plane scale is
20048.1 km/arcsec.
The TNO has an absolute magnitude Hv=7.7
Diameter=172.2 km assuming a 5% albedo -- 14.1 sec chord
Diameter=70.3 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is CENTAURR
Star training set for 15BF519, (2018/12/04 11:12UT) Object RA Dec mag sep mel Regulus 10:09:22.7 +11:52:26 1.3 22.23 69 Alphard 09:28:31.0 -08:44:29 2.0 18.51 75 PPM 193828 10:50:40.4 -09:57:12 5.5 2.19 54 PPM 193705 10:43:24.2 -08:49:36 7.1 0.15 56 15BF519 10:43:26.4 -08:40:42 14.3 56 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 10.7 km
RECON observability=1.0 and success probability=20.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Niwot | 11:05:28 | -33.9 | Dark | Down | 35.6 | 147.5 | Up | 10:54:43 - 11:16:12 | 229 |
| Kelowna | 11:04:31 | -42.8 | Dark | Down | 21.7 | 136.1 | Low | 10:53:46 - 11:15:15 | -96 |
| Summerland | 11:04:31 | -43.0 | Dark | Down | 21.5 | 135.8 | Low | 10:53:46 - 11:15:15 | -119 |
| Penticton | 11:04:32 | -43.0 | Dark | Down | 21.8 | 135.9 | Low | 10:53:48 - 11:15:17 | -132 |
| Okanagan Falls | 11:04:33 | -43.1 | Dark | Down | 22.0 | 135.8 | Low | 10:53:48 - 11:15:17 | -146 |
| Oliver | 11:04:33 | -43.1 | Dark | Down | 22.1 | 135.8 | Low | 10:53:49 - 11:15:18 | -157 |
| Anarchist Mountain Observatory | 11:04:34 | -43.0 | Dark | Down | 22.3 | 135.9 | Low | 10:53:49 - 11:15:18 | -158 |
| Oroville | 11:04:34 | -43.1 | Dark | Down | 22.3 | 135.8 | Low | 10:53:50 - 11:15:19 | -167 |
| Tonasket | 11:04:35 | -43.1 | Dark | Down | 22.5 | 135.7 | Low | 10:53:51 - 11:15:20 | -183 |
| Okanogan | 11:04:36 | -43.3 | Dark | Down | 22.7 | 135.5 | Low | 10:53:51 - 11:15:20 | -215 |
| Brewster | 11:04:37 | -43.5 | Dark | Down | 22.8 | 135.2 | Low | 10:53:53 - 11:15:22 | -246 |
| Manson/Chelan | 11:04:38 | -43.8 | Dark | Down | 22.8 | 134.8 | Low | 10:53:53 - 11:15:22 | -281 |
| Entiat | 11:04:39 | -43.9 | Dark | Down | 22.9 | 134.7 | Low | 10:53:54 - 11:15:23 | -301 |
| Wenatchee | 11:04:40 | -44.1 | Dark | Down | 23.0 | 134.5 | Low | 10:53:55 - 11:15:24 | -324 |
| Pasco | 11:04:44 | -43.5 | Dark | Down | 24.4 | 135.3 | Low | 10:54:00 - 11:15:29 | -336 |
| PNWRO | 11:04:46 | -43.4 | Dark | Down | 24.7 | 135.5 | Low | 10:54:02 - 11:15:31 | -340 |
| Ellensburg | 11:04:41 | -44.3 | Dark | Down | 23.2 | 134.2 | Low | 10:53:56 - 11:15:25 | -366 |
| George/Umatilla | 11:04:46 | -43.8 | Dark | Down | 24.6 | 135.0 | Low | 10:54:02 - 11:15:31 | -372 |
| Yakima | 11:04:43 | -44.4 | Dark | Down | 23.5 | 134.1 | Low | 10:53:58 - 11:15:27 | -396 |
| Toppenish/White Swan | 11:04:43 | -44.4 | Dark | Down | 23.7 | 134.2 | Low | 10:53:59 - 11:15:28 | -401 |
| Goldendale | 11:04:46 | -44.8 | Dark | Down | 23.9 | 133.6 | Low | 10:54:01 - 11:15:30 | -465 |
| The Dalles | 11:04:46 | -45.1 | Dark | Down | 23.8 | 133.2 | Low | 10:54:01 - 11:15:30 | -501 |
| Maupin | 11:04:48 | -45.1 | Dark | Down | 24.2 | 133.2 | Low | 10:54:04 - 11:15:33 | -525 |
| Madras/Culver | 11:04:50 | -45.3 | Dark | Down | 24.6 | 133.0 | Low | 10:54:05 - 11:15:34 | -566 |
| Redmond | 11:04:52 | -45.4 | Dark | Down | 24.8 | 132.8 | Low | 10:54:07 - 11:15:36 | -594 |
| Sisters | 11:04:52 | -45.7 | Dark | Down | 24.5 | 132.4 | Low | 10:54:07 - 11:15:36 | -616 |
| Bend | 11:04:52 | -45.5 | Dark | Down | 24.8 | 132.6 | Low | 10:54:08 - 11:15:37 | -617 |
| Oregon Observatory | 11:04:52 | -45.7 | Dark | Down | 24.9 | 132.4 | Low | 10:54:08 - 11:15:37 | -637 |
| DCO | 11:05:45 | -40.1 | Dark | Down | 35.7 | 136.9 | Up | 10:55:00 - 11:16:29 | -642 |
| North Lake | 11:04:56 | -45.4 | Dark | Down | 25.6 | 132.7 | Low | 10:54:12 - 11:15:41 | -649 |
| La Pine/Gilchrist | 11:04:55 | -45.8 | Dark | Down | 25.0 | 132.3 | Low | 10:54:10 - 11:15:39 | -655 |
| Paisley | 11:04:59 | -45.3 | Dark | Down | 26.2 | 132.9 | Low | 10:54:14 - 11:15:43 | -666 |
| Patrick | 11:05:42 | -40.7 | Dark | Down | 35.1 | 136.3 | Up | 10:54:58 - 11:16:27 | -677 |
| Lakeview | 11:05:02 | -45.2 | Dark | Down | 26.7 | 132.9 | Low | 10:54:17 - 11:15:46 | -689 |
| Kingman/Dolan Springs | 11:05:44 | -40.8 | Dark | Down | 35.2 | 136.0 | Up | 10:54:59 - 11:16:28 | -704 |
| Henderson | 11:05:37 | -41.6 | Dark | Down | 34.0 | 135.5 | Up | 10:54:53 - 11:16:22 | -722 |
| Cedarville | 11:05:05 | -45.2 | Dark | Down | 27.2 | 132.8 | Low | 10:54:21 - 11:15:50 | -722 |
| Indian Springs | 11:05:35 | -42.2 | Dark | Down | 33.2 | 135.1 | Up | 10:54:50 - 11:16:19 | -739 |
| Laughlin/Bullhead City | 11:05:43 | -41.3 | Dark | Down | 34.9 | 135.5 | Up | 10:54:58 - 11:16:27 | -743 |
| Searchlight/Boulder City | 11:05:42 | -41.5 | Dark | Down | 34.5 | 135.3 | Up | 10:54:57 - 11:16:26 | -751 |
| Chiloquin | 11:04:59 | -46.3 | Dark | Down | 25.6 | 131.6 | Low | 10:54:15 - 11:15:44 | -754 |
| Tonopah | 11:05:25 | -43.3 | Dark | Down | 31.3 | 134.2 | Up | 10:54:41 - 11:16:10 | -755 |
| Mohave Valley | 11:05:44 | -41.2 | Dark | Down | 35.1 | 135.4 | Up | 10:55:00 - 11:16:29 | -759 |
| Lake Havasu City | 11:05:47 | -41.0 | Dark | Down | 35.5 | 135.5 | Up | 10:55:03 - 11:16:32 | -764 |
| Klamath Falls | 11:05:00 | -46.3 | Dark | Down | 25.8 | 131.6 | Low | 10:54:16 - 11:15:45 | -773 |
| Tulelake | 11:05:01 | -46.1 | Dark | Down | 26.2 | 131.7 | Low | 10:54:17 - 11:15:46 | -773 |
| Parker | 11:05:49 | -41.0 | Dark | Down | 35.8 | 135.3 | Up | 10:55:05 - 11:16:34 | -782 |
| Beatty | 11:05:32 | -43.0 | Dark | Down | 32.4 | 134.2 | Up | 10:54:47 - 11:16:16 | -796 |
| Hawthorne | 11:05:21 | -44.4 | Dark | Down | 30.2 | 133.1 | Up | 10:54:36 - 11:16:05 | -821 |
| Yerington | 11:05:18 | -44.8 | Dark | Down | 29.5 | 132.8 | Low | 10:54:33 - 11:16:02 | -826 |
| Susanville | 11:05:09 | -45.7 | Dark | Down | 27.7 | 131.9 | Low | 10:54:25 - 11:15:54 | -828 |
| Fall River/Burney | 11:05:06 | -46.2 | Dark | Down | 26.8 | 131.5 | Low | 10:54:22 - 11:15:51 | -831 |
| Reno | 11:05:15 | -45.2 | Dark | Down | 28.8 | 132.4 | Low | 10:54:30 - 11:15:59 | -832 |
| Blythe | 11:05:53 | -41.2 | Dark | Down | 36.0 | 134.8 | Up | 10:55:08 - 11:16:37 | -835 |
| Carson City | 11:05:17 | -45.2 | Dark | Down | 29.0 | 132.3 | Low | 10:54:33 - 11:16:02 | -855 |
| Portola | 11:05:13 | -45.7 | Dark | Down | 28.2 | 131.9 | Low | 10:54:28 - 11:15:57 | -856 |
| Gimple | 11:05:11 | -45.9 | Dark | Down | 27.8 | 131.6 | Low | 10:54:26 - 11:15:55 | -860 |
| Greenville | 11:05:10 | -46.0 | Dark | Down | 27.7 | 131.6 | Low | 10:54:26 - 11:15:55 | -865 |
| Gardnerville | 11:05:18 | -45.2 | Dark | Down | 29.2 | 132.2 | Low | 10:54:33 - 11:16:02 | -867 |
| Quincy | 11:05:12 | -46.0 | Dark | Down | 27.9 | 131.5 | Low | 10:54:28 - 11:15:57 | -878 |
| Bishop | 11:05:27 | -44.3 | Dark | Down | 31.1 | 132.8 | Up | 10:54:42 - 11:16:11 | -879 |
| Lee Vining | 11:05:24 | -44.8 | Dark | Down | 30.3 | 132.4 | Up | 10:54:40 - 11:16:09 | -890 |
| Yuma | 11:05:58 | -41.2 | Dark | Down | 36.6 | 134.3 | Up | 10:55:13 - 11:16:42 | -890 |
| Lone Pine | 11:05:32 | -44.1 | Dark | Down | 31.8 | 132.8 | Up | 10:54:48 - 11:16:17 | -904 |
| Calipatria | 11:05:54 | -42.0 | Dark | Down | 35.8 | 133.6 | Up | 10:55:10 - 11:16:39 | -933 |
| Idyllwild | 11:05:49 | -43.0 | Dark | Down | 34.6 | 132.8 | Up | 10:55:05 - 11:16:34 | -984 |
| Wildwood | 11:05:46 | -44.6 | Dark | Down | 33.2 | 131.2 | Up | 10:55:01 - 11:16:30 | -1098 |
| CPSLO | 11:05:37 | -46.2 | Dark | Down | 31.1 | 129.9 | Up | 10:54:52 - 11:16:21 | -1164 |
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 15BF519, (2018/12/04 11:12UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 22.23 69 Alphard 09:27:35.2 -08:39:31 2.0 18.51 75 PPM 193828 10:49:43.5 -09:51:10 5.5 2.19 54 PPM 193705 10:42:27.3 -08:43:38 7.1 0.15 56 15BF519 10:42:29.5 -08:34:44 14.3 56 Positions are for J2000
Event circumstances last updated at 2018/10/23 20:44:52 UT
Marc W. Buie, Southwest Research Institute