Event between 15BF518 and star GA0840:03958264 with event index number of 1540587
Geocentric closest approach at 2019/05/05 07:28:54 UTC
J2000 position of star is 10:44:32.2 -05:50:26
Equinox of date position of star is 10:45:30.5 -05:56:32
Stellar brightness G=16.0,
use SENSEUP=128
Star is 114 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=22.6
[RECON map]
TNO is 17.6 AU from the Sun
and 17.1 AU from the Earth.
The TNO is moving 10.0
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 129 seconds.
The 1-sigma cross-track error in the shadow position is
1744 km.
The sky-plane scale is
12411.4 km/arcsec.
The TNO has an absolute magnitude Hv=9.9
Diameter=63.4 km assuming a 5% albedo -- 6.3 sec chord
Diameter=25.9 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CENTAURR
Star training set for 15BF518, (2019/05/05 07:29UT) Object RA Dec mag sep mel Regulus 10:09:24.0 +11:52:19 1.3 19.95 101 Alphard 09:28:32.3 -08:44:36 2.0 19.29 96 PPM 193861 10:52:04.4 -03:11:44 5.8 3.20 115 PPM 193730 10:44:52.3 -06:10:48 8.2 0.29 114 PPM 193741 10:45:32.8 -05:54:28 9.8 0.04 114 15BF518 10:45:30.8 -05:56:33 16.0 114 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 8.2 km
RECON observability=0.6 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| SwRI | 07:31:53 | -33.2 | Dark | Down | 11.6 | 252.0 | Really Low | 07:20:37 - 07:43:10 | 8388 |
| Niwot | 07:31:55 | -33.1 | Dark | Down | 11.5 | 252.1 | Really Low | 07:20:38 - 07:43:11 | 8388 |
| DCO | 07:31:16 | -38.7 | Dark | Down | 19.3 | 247.8 | Really Low | 07:19:59 - 07:42:32 | 8241 |
| Patrick | 07:31:21 | -38.4 | Dark | Down | 19.7 | 247.2 | Really Low | 07:20:04 - 07:42:37 | 8212 |
| Parker | 07:31:09 | -39.7 | Dark | Down | 20.6 | 247.3 | Low | 07:19:52 - 07:42:25 | 8209 |
| Yuma | 07:30:52 | -41.1 | Dark | Down | 21.4 | 247.5 | Low | 07:19:35 - 07:42:08 | 8208 |
| Kingman/Dolan Springs | 07:31:20 | -38.6 | Dark | Down | 20.0 | 247.1 | Really Low | 07:20:03 - 07:42:36 | 8208 |
| Lake Havasu City | 07:31:12 | -39.3 | Dark | Down | 20.4 | 247.2 | Low | 07:19:56 - 07:42:29 | 8205 |
| Blythe | 07:31:04 | -40.2 | Dark | Down | 21.0 | 247.3 | Low | 07:19:48 - 07:42:21 | 8203 |
| Mohave Valley | 07:31:17 | -38.9 | Dark | Down | 20.5 | 246.9 | Low | 07:20:01 - 07:42:34 | 8192 |
| Laughlin/Bullhead City | 07:31:21 | -38.6 | Dark | Down | 20.4 | 246.8 | Low | 07:20:04 - 07:42:37 | 8189 |
| Searchlight/Boulder City | 07:31:24 | -38.3 | Dark | Down | 20.5 | 246.5 | Low | 07:20:07 - 07:42:40 | 8172 |
| Calipatria | 07:31:02 | -40.6 | Dark | Down | 21.9 | 246.8 | Low | 07:19:46 - 07:42:19 | 8170 |
| Henderson | 07:31:30 | -37.7 | Dark | Down | 20.3 | 246.2 | Low | 07:20:13 - 07:42:46 | 8163 |
| Indian Springs | 07:31:34 | -37.2 | Dark | Down | 20.6 | 245.6 | Low | 07:20:18 - 07:42:51 | 8130 |
| Idyllwild | 07:31:11 | -40.0 | Dark | Down | 22.6 | 245.8 | Low | 07:19:55 - 07:42:28 | 8118 |
| Beatty | 07:31:41 | -36.8 | Dark | Down | 21.2 | 244.7 | Low | 07:20:25 - 07:42:58 | 8084 |
| Tonopah | 07:31:56 | -35.7 | Dark | Down | 21.0 | 244.0 | Low | 07:20:40 - 07:43:13 | 8051 |
| Wildwood | 07:31:19 | -39.5 | Dark | Down | 23.8 | 244.3 | Low | 07:20:03 - 07:42:36 | 8036 |
| Lone Pine | 07:31:45 | -37.0 | Dark | Down | 22.2 | 243.8 | Low | 07:20:28 - 07:43:01 | 8036 |
| Bishop | 07:31:53 | -36.3 | Dark | Down | 22.1 | 243.3 | Low | 07:20:37 - 07:43:10 | 8013 |
| Hawthorne | 07:32:06 | -35.1 | Dark | Down | 21.7 | 242.8 | Low | 07:20:49 - 07:43:22 | 7987 |
| Lee Vining | 07:31:57 | -35.6 | Dark | Down | 22.4 | 242.6 | Low | 07:20:40 - 07:43:13 | 7975 |
| Yerington | 07:32:06 | -34.6 | Dark | Down | 21.9 | 242.2 | Low | 07:20:49 - 07:43:22 | 7959 |
| CPSLO | 07:31:37 | -38.1 | Dark | Down | 24.7 | 242.4 | Low | 07:20:21 - 07:42:54 | 7937 |
| Gardnerville | 07:32:11 | -34.6 | Dark | Down | 22.3 | 241.8 | Low | 07:20:54 - 07:43:27 | 7935 |
| Carson City | 07:32:11 | -34.3 | Dark | Down | 22.2 | 241.7 | Low | 07:20:54 - 07:43:27 | 7930 |
| Reno | 07:32:16 | -34.0 | Dark | Down | 22.0 | 241.5 | Low | 07:21:00 - 07:43:33 | 7923 |
| Portola | 07:32:23 | -33.7 | Dark | Down | 22.3 | 241.0 | Low | 07:21:06 - 07:43:39 | 7892 |
| Cedarville | 07:32:36 | -32.0 | Dark | Down | 21.3 | 240.6 | Low | 07:21:20 - 07:43:53 | 7875 |
| Susanville | 07:32:25 | -33.0 | Dark | Down | 22.1 | 240.6 | Low | 07:21:08 - 07:43:41 | 7875 |
| Gimple | 07:32:26 | -33.3 | Dark | Down | 22.4 | 240.5 | Low | 07:21:10 - 07:43:43 | 7871 |
| Quincy | 07:32:23 | -33.5 | Dark | Down | 22.6 | 240.5 | Low | 07:21:06 - 07:43:39 | 7870 |
| Greenville | 07:32:27 | -33.3 | Dark | Down | 22.5 | 240.5 | Low | 07:21:10 - 07:43:43 | 7867 |
| Lakeview | 07:32:44 | -31.3 | Dark | Down | 21.0 | 240.3 | Low | 07:21:28 - 07:44:01 | 7855 |
| Paisley | 07:32:50 | -30.8 | Dark | Down | 20.9 | 240.0 | Low | 07:21:33 - 07:44:06 | 7837 |
| Fall River/Burney | 07:32:34 | -32.3 | Dark | Down | 22.3 | 239.8 | Low | 07:21:17 - 07:43:50 | 7833 |
| PNWRO | 07:33:18 | -27.6 | Dark | Down | 18.1 | 240.4 | Really Low | 07:22:01 - 07:44:34 | 7820 |
| Tulelake | 07:32:43 | -31.4 | Dark | Down | 21.9 | 239.5 | Low | 07:21:27 - 07:44:00 | 7813 |
| North Lake | 07:32:56 | -30.2 | Dark | Down | 20.8 | 239.5 | Low | 07:21:39 - 07:44:12 | 7811 |
| George/Umatilla | 07:33:17 | -27.7 | Dark | Down | 18.5 | 240.1 | Really Low | 07:22:00 - 07:44:33 | 7806 |
| Pasco | 07:33:20 | -27.4 | Dark | Down | 18.1 | 240.2 | Really Low | 07:22:04 - 07:44:37 | 7805 |
| Klamath Falls | 07:32:47 | -31.1 | Dark | Down | 21.9 | 239.1 | Low | 07:21:31 - 07:44:04 | 7796 |
| Chiloquin | 07:32:51 | -30.8 | Dark | Down | 21.8 | 239.0 | Low | 07:21:34 - 07:44:07 | 7786 |
| Redmond | 07:33:06 | -29.2 | Dark | Down | 20.4 | 239.0 | Low | 07:21:49 - 07:44:22 | 7778 |
| La Pine/Gilchrist | 07:33:02 | -29.7 | Dark | Down | 21.0 | 238.9 | Low | 07:21:45 - 07:44:18 | 7777 |
| Bend | 07:33:04 | -29.4 | Dark | Down | 20.6 | 239.0 | Low | 07:21:47 - 07:44:20 | 7777 |
| Oregon Observatory | 07:33:03 | -29.5 | Dark | Down | 20.8 | 238.9 | Low | 07:21:46 - 07:44:19 | 7775 |
| Madras/Culver | 07:33:10 | -28.8 | Dark | Down | 20.2 | 239.0 | Low | 07:21:54 - 07:44:27 | 7771 |
| Sisters | 07:33:08 | -29.1 | Dark | Down | 20.7 | 238.7 | Low | 07:21:52 - 07:44:25 | 7761 |
| Maupin | 07:33:15 | -28.3 | Dark | Down | 19.9 | 238.8 | Really Low | 07:21:59 - 07:44:32 | 7760 |
| Toppenish/White Swan | 07:33:24 | -27.2 | Dark | Down | 18.8 | 239.1 | Really Low | 07:22:07 - 07:44:40 | 7755 |
| Goldendale | 07:33:19 | -27.7 | Dark | Down | 19.4 | 238.9 | Really Low | 07:22:03 - 07:44:36 | 7754 |
| The Dalles | 07:33:19 | -27.9 | Dark | Down | 19.7 | 238.6 | Really Low | 07:22:02 - 07:44:35 | 7745 |
| Yakima | 07:33:26 | -26.9 | Dark | Down | 18.8 | 238.9 | Really Low | 07:22:10 - 07:44:43 | 7743 |
| Ellensburg | 07:33:30 | -26.5 | Dark | Down | 18.6 | 238.8 | Really Low | 07:22:14 - 07:44:47 | 7733 |
| Wenatchee | 07:33:34 | -26.2 | Dark | Down | 18.2 | 238.9 | Really Low | 07:22:17 - 07:44:50 | 7729 |
| Brewster | 07:33:38 | -25.5 | Dark | Down | 17.6 | 239.2 | Really Low | 07:22:22 - 07:44:55 | 7728 |
| Okanogan | 07:33:40 | -25.3 | Dark | Down | 17.3 | 239.3 | Really Low | 07:22:24 - 07:44:57 | 7727 |
| Entiat | 07:33:36 | -25.9 | Dark | Down | 18.0 | 238.9 | Really Low | 07:22:19 - 07:44:52 | 7725 |
| Tonasket | 07:33:42 | -24.9 | Dark | Down | 17.0 | 239.3 | Really Low | 07:22:26 - 07:44:59 | 7722 |
| Manson/Chelan | 07:33:37 | -25.7 | Dark | Down | 17.9 | 238.9 | Really Low | 07:22:21 - 07:44:54 | 7721 |
| Anarchist Mountain Observatory | 07:33:46 | -24.6 | Dark | Down | 16.8 | 239.3 | Really Low | 07:22:29 - 07:45:02 | 7714 |
| Oroville | 07:33:44 | -24.7 | Dark | Down | 16.9 | 239.3 | Really Low | 07:22:28 - 07:45:01 | 7714 |
| Oliver | 07:33:49 | -24.5 | Dark | Down | 16.8 | 239.1 | Really Low | 07:22:33 - 07:45:06 | 7702 |
| Okanagan Falls | 07:33:49 | -24.3 | Dark | Down | 16.8 | 239.1 | Really Low | 07:22:33 - 07:45:06 | 7696 |
| Penticton | 07:33:51 | -24.1 | Dark | Down | 16.7 | 239.0 | Really Low | 07:22:35 - 07:45:08 | 7691 |
| Summerland | 07:33:51 | -24.0 | Dark | Down | 16.7 | 238.9 | Really Low | 07:22:35 - 07:45:08 | 7684 |
| Kelowna | 07:33:54 | -23.8 | Dark | Down | 16.4 | 239.1 | Really Low | 07:22:37 - 07:45:10 | 7684 |
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 15BF518, (2019/05/05 07:29UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 19.95 101 Alphard 09:27:35.2 -08:39:31 2.0 19.29 96 PPM 193861 10:51:05.3 -03:05:34 5.8 3.20 115 PPM 193730 10:43:53.7 -06:04:42 8.2 0.29 114 PPM 193741 10:44:34.1 -05:48:21 9.8 0.04 114 15BF518 10:44:32.2 -05:50:26 16.0 114 Positions are for J2000
Event circumstances last updated at 2019/04/01 22:03:47 UT
Marc W. Buie, Southwest Research Institute