Event between (471318) 11JF31 and star GA0700:05852956 with event index number of 186391
Geocentric closest approach at 2019/05/04 06:45:35 UTC
J2000 position of star is 15:36:17.0 -19:42:18
Equinox of date position of star is 15:37:22.1 -19:45:59
Stellar brightness G=16.6,
use SENSEUP=128
Star is 159 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=21.5
[RECON map]
TNO is 42.4 AU from the Sun
and 41.4 AU from the Earth.
The TNO is moving 24.8
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 463 seconds.
The 1-sigma cross-track error in the shadow position is
4879 km.
The sky-plane scale is
30046.9 km/arcsec.
The TNO has an absolute magnitude Hv=5.2
Diameter=549.6 km assuming a 5% albedo -- 22.2 sec chord
Diameter=224.4 km assuming a 30% albedo -- 9.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 471318, (2019/05/04 06:46UT) Object RA Dec mag sep mel Antares 16:30:35.8 -26:28:24 0.9 13.94 145 7Del Sco 16:01:28.8 -22:40:31 2.3 6.32 152 41 Lib 15:40:01.6 -19:21:51 5.3 0.74 158 PPM 230514 15:39:32.2 -19:58:33 7.1 0.54 158 PPM 230472 15:37:43.2 -19:52:49 9.9 0.14 158 471318 15:37:23.9 -19:46:05 16.6 158 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
1.9 sigma about the mid-time.
The median site spacing is 9.2 km
RECON observability=0.6 and success probability=4.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 06:48:07 | -22.6 | Dark | Down | 15.6 | 151.2 | Really Low | 06:33:07 - 07:03:07 | 5000 |
| Summerland | 06:48:06 | -22.6 | Dark | Down | 15.6 | 150.8 | Really Low | 06:33:06 - 07:03:06 | 4986 |
| Penticton | 06:48:06 | -22.9 | Dark | Down | 15.9 | 151.0 | Really Low | 06:33:06 - 07:03:06 | 4975 |
| Okanagan Falls | 06:48:06 | -23.1 | Dark | Down | 16.1 | 150.9 | Really Low | 06:33:06 - 07:03:06 | 4964 |
| Oliver | 06:48:06 | -23.2 | Dark | Down | 16.2 | 150.9 | Really Low | 06:33:06 - 07:03:06 | 4956 |
| Anarchist Mountain Observatory | 06:48:06 | -23.5 | Dark | Down | 16.4 | 151.1 | Really Low | 06:33:06 - 07:03:06 | 4953 |
| Oroville | 06:48:06 | -23.5 | Dark | Down | 16.5 | 151.0 | Really Low | 06:33:06 - 07:03:06 | 4946 |
| Tonasket | 06:48:07 | -23.7 | Dark | Down | 16.7 | 151.0 | Really Low | 06:33:07 - 07:03:07 | 4934 |
| Okanogan | 06:48:07 | -24.0 | Dark | Down | 16.9 | 150.8 | Really Low | 06:33:07 - 07:03:07 | 4910 |
| Niwot | 06:47:34 | -33.9 | Dark | Down | 28.5 | 163.4 | Low | 06:32:34 - 07:02:34 | 4901 |
| Brewster | 06:48:08 | -24.2 | Dark | Down | 17.1 | 150.5 | Really Low | 06:33:08 - 07:03:08 | 4888 |
| Manson/Chelan | 06:48:10 | -24.4 | Dark | Down | 17.2 | 150.2 | Really Low | 06:33:10 - 07:03:10 | 4865 |
| Entiat | 06:48:10 | -24.6 | Dark | Down | 17.3 | 150.1 | Really Low | 06:33:10 - 07:03:10 | 4850 |
| Wenatchee | 06:48:10 | -24.8 | Dark | Down | 17.5 | 150.0 | Really Low | 06:33:10 - 07:03:10 | 4832 |
| Pasco | 06:48:08 | -26.1 | Dark | Down | 18.9 | 150.9 | Really Low | 06:33:08 - 07:03:08 | 4804 |
| Ellensburg | 06:48:11 | -25.1 | Dark | Down | 17.8 | 149.7 | Really Low | 06:33:11 - 07:03:11 | 4801 |
| PNWRO | 06:48:08 | -26.4 | Dark | Down | 19.2 | 151.0 | Really Low | 06:33:08 - 07:03:08 | 4797 |
| George/Umatilla | 06:48:10 | -26.4 | Dark | Down | 19.1 | 150.6 | Really Low | 06:33:10 - 07:03:10 | 4777 |
| Yakima | 06:48:11 | -25.5 | Dark | Down | 18.1 | 149.6 | Really Low | 06:33:11 - 07:03:11 | 4777 |
| Toppenish/White Swan | 06:48:12 | -25.7 | Dark | Down | 18.4 | 149.7 | Really Low | 06:33:12 - 07:03:12 | 4770 |
| Goldendale | 06:48:13 | -26.2 | Dark | Down | 18.7 | 149.2 | Really Low | 06:33:13 - 07:03:13 | 4723 |
| The Dalles | 06:48:14 | -26.3 | Dark | Down | 18.8 | 148.9 | Really Low | 06:33:14 - 07:03:14 | 4697 |
| Maupin | 06:48:14 | -26.7 | Dark | Down | 19.2 | 148.9 | Really Low | 06:33:14 - 07:03:14 | 4675 |
| Madras/Culver | 06:48:15 | -27.2 | Dark | Down | 19.6 | 148.8 | Really Low | 06:33:15 - 07:03:15 | 4640 |
| Redmond | 06:48:15 | -27.5 | Dark | Down | 19.9 | 148.6 | Really Low | 06:33:15 - 07:03:15 | 4616 |
| Sisters | 06:48:17 | -27.4 | Dark | Down | 19.7 | 148.3 | Really Low | 06:33:17 - 07:03:17 | 4603 |
| Bend | 06:48:15 | -27.7 | Dark | Down | 20.0 | 148.5 | Low | 06:33:15 - 07:03:15 | 4597 |
| Oregon Observatory | 06:48:17 | -27.8 | Dark | Down | 20.1 | 148.3 | Low | 06:33:17 - 07:03:17 | 4582 |
| La Pine/Gilchrist | 06:48:16 | -28.0 | Dark | Down | 20.3 | 148.2 | Low | 06:33:16 - 07:03:16 | 4567 |
| North Lake | 06:48:15 | -28.6 | Dark | Down | 20.9 | 148.7 | Low | 06:33:15 - 07:03:15 | 4560 |
| Paisley | 06:48:15 | -29.2 | Dark | Down | 21.5 | 148.9 | Low | 06:33:15 - 07:03:15 | 4538 |
| Lakeview | 06:48:15 | -29.7 | Dark | Down | 22.0 | 149.0 | Low | 06:33:15 - 07:03:15 | 4512 |
| Chiloquin | 06:48:18 | -29.0 | Dark | Down | 21.1 | 147.7 | Low | 06:33:18 - 07:03:18 | 4483 |
| Cedarville | 06:48:15 | -30.4 | Dark | Down | 22.6 | 149.0 | Low | 06:33:15 - 07:03:15 | 4475 |
| Klamath Falls | 06:48:18 | -29.3 | Dark | Down | 21.4 | 147.7 | Low | 06:33:18 - 07:03:18 | 4464 |
| Tulelake | 06:48:18 | -29.6 | Dark | Down | 21.8 | 147.9 | Low | 06:33:18 - 07:03:18 | 4457 |
| Fall River/Burney | 06:48:18 | -30.5 | Dark | Down | 22.6 | 147.8 | Low | 06:33:18 - 07:03:18 | 4399 |
| Susanville | 06:48:17 | -31.3 | Dark | Down | 23.4 | 148.3 | Low | 06:33:17 - 07:03:17 | 4384 |
| Gimple | 06:48:18 | -31.5 | Dark | Down | 23.6 | 148.1 | Low | 06:33:18 - 07:03:18 | 4357 |
| Reno | 06:48:15 | -32.3 | Dark | Down | 24.5 | 148.9 | Low | 06:33:15 - 07:03:15 | 4356 |
| Greenville | 06:48:18 | -31.5 | Dark | Down | 23.5 | 148.0 | Low | 06:33:18 - 07:03:18 | 4355 |
| Tonopah | 06:48:09 | -34.4 | Dark | Down | 26.8 | 151.0 | Low | 06:33:09 - 07:03:09 | 4350 |
| Portola | 06:48:17 | -31.9 | Dark | Down | 24.0 | 148.4 | Low | 06:33:17 - 07:03:17 | 4350 |
| Yerington | 06:48:14 | -33.0 | Dark | Down | 25.2 | 149.4 | Low | 06:33:14 - 07:03:14 | 4342 |
| Quincy | 06:48:18 | -31.7 | Dark | Down | 23.7 | 148.0 | Low | 06:33:18 - 07:03:18 | 4341 |
| Carson City | 06:48:16 | -32.7 | Dark | Down | 24.8 | 148.8 | Low | 06:33:16 - 07:03:16 | 4332 |
| Hawthorne | 06:48:14 | -33.6 | Dark | Down | 25.8 | 149.8 | Low | 06:33:14 - 07:03:14 | 4330 |
| Gardnerville | 06:48:15 | -32.9 | Dark | Down | 25.0 | 148.8 | Low | 06:33:15 - 07:03:15 | 4317 |
| Indian Springs | 06:48:05 | -36.1 | Dark | Down | 28.7 | 152.1 | Low | 06:33:05 - 07:03:05 | 4304 |
| DCO | 06:47:58 | -38.1 | Dark | Down | 30.9 | 154.2 | Up | 06:32:58 - 07:02:58 | 4296 |
| Henderson | 06:48:04 | -36.8 | Dark | Down | 29.4 | 152.7 | Low | 06:33:04 - 07:03:04 | 4293 |
| Patrick | 06:48:00 | -37.6 | Dark | Down | 30.3 | 153.6 | Up | 06:33:00 - 07:03:00 | 4291 |
| Beatty | 06:48:08 | -35.6 | Dark | Down | 28.0 | 151.1 | Low | 06:33:08 - 07:03:08 | 4287 |
| Lee Vining | 06:48:15 | -34.0 | Dark | Down | 26.1 | 149.2 | Low | 06:33:15 - 07:03:15 | 4272 |
| Kingman/Dolan Springs | 06:48:01 | -37.8 | Dark | Down | 30.5 | 153.3 | Up | 06:33:01 - 07:03:01 | 4268 |
| Bishop | 06:48:12 | -34.8 | Dark | Down | 26.9 | 149.7 | Low | 06:33:12 - 07:03:12 | 4258 |
| Searchlight/Boulder City | 06:48:03 | -37.4 | Dark | Down | 29.9 | 152.6 | Low | 06:33:03 - 07:03:03 | 4255 |
| Laughlin/Bullhead City | 06:48:02 | -37.7 | Dark | Down | 30.3 | 152.8 | Up | 06:33:02 - 07:03:02 | 4247 |
| Mohave Valley | 06:48:02 | -38.0 | Dark | Down | 30.6 | 152.8 | Up | 06:33:02 - 07:03:02 | 4228 |
| Lone Pine | 06:48:12 | -35.6 | Dark | Down | 27.7 | 149.8 | Low | 06:33:12 - 07:03:12 | 4217 |
| Lake Havasu City | 06:48:02 | -38.4 | Dark | Down | 31.0 | 152.9 | Up | 06:33:02 - 07:03:02 | 4209 |
| Parker | 06:48:02 | -38.8 | Dark | Down | 31.3 | 152.8 | Up | 06:33:02 - 07:03:02 | 4184 |
| Blythe | 06:48:03 | -39.2 | Dark | Down | 31.7 | 152.4 | Up | 06:33:03 - 07:03:03 | 4135 |
| Yuma | 06:48:03 | -40.1 | Dark | Down | 32.5 | 152.1 | Up | 06:33:03 - 07:03:03 | 4066 |
| Calipatria | 06:48:06 | -39.5 | Dark | Down | 31.7 | 151.3 | Up | 06:33:06 - 07:03:06 | 4063 |
| Idyllwild | 06:48:09 | -38.6 | Dark | Down | 30.7 | 150.3 | Up | 06:33:09 - 07:03:09 | 4062 |
| CPSLO | 06:48:20 | -36.1 | Dark | Down | 27.7 | 147.0 | Low | 06:33:20 - 07:03:20 | 4024 |
| Wildwood | 06:48:15 | -37.8 | Dark | Down | 29.6 | 148.6 | Low | 06:33:15 - 07:03:15 | 4015 |
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 471318, (2019/05/04 06:46UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 13.94 145 7Del Sco 16:00:20.0 -22:37:18 2.3 6.32 152 41 Lib 15:38:54.7 -19:18:08 5.3 0.74 158 PPM 230514 15:38:25.1 -19:54:49 7.1 0.54 158 PPM 230472 15:36:36.2 -19:49:03 9.9 0.14 158 471318 15:36:17.0 -19:42:18 16.6 158 Positions are for J2000
Event circumstances last updated at 2018/10/24 21:22:17 UT
Marc W. Buie, Southwest Research Institute