Event between (363401) 03LB7 and star UC4-333-088209 with event index number of 336075
Geocentric closest approach at 2019/09/26 02:51:44 UTC
J2000 position of star is 16:52:53.1 -23:33:41
Equinox of date position of star is 16:54:01.8 -23:35:30
Stellar brightness R=16.1,
use SENSEUP=128
Star is 110 degrees from the moon.
Moon is 10% illuminated.
TNO apparent brightness V=23.0
[RECON map]
TNO is 41.3 AU from the Sun
and 41.6 AU from the Earth.
The TNO is moving 14.4
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 1100 seconds.
The 1-sigma cross-track error in the shadow position is
4973 km.
The sky-plane scale is
30196.9 km/arcsec.
The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 19.1 sec chord
Diameter=112.4 km assuming a 30% albedo -- 7.8 sec chord
Dynamical classification is CLASSICAL
Star training set for 363401, (2019/09/26 02:52UT) Object RA Dec mag sep mel Antares 16:30:37.2 -26:28:27 0.9 6.04 105 23Tau Sco 16:37:06.9 -28:15:19 2.8 6.02 107 26 Oph 17:01:22.2 -25:01:03 5.8 2.19 111 PPM 266128 16:56:02.5 -23:32:35 6.9 0.45 110 PPM 266077 16:54:02.4 -23:20:19 9.4 0.25 109 363401 16:54:04.8 -23:35:34 16.1 110 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
0.8 sigma about the mid-time.
The median site spacing is 16.8 km
RECON observability=0.1 and success probability=0.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Summerland | 02:53:53 | -11.0 | NT | Down | 10.2 | 212.4 | Really Low | 02:38:53 - 03:08:53 | 10128 |
| Kelowna | 02:53:54 | -11.2 | NT | Down | 10.1 | 212.7 | Really Low | 02:38:54 - 03:08:54 | 10125 |
| Penticton | 02:53:54 | -11.2 | NT | Down | 10.4 | 212.6 | Really Low | 02:38:54 - 03:08:54 | 10115 |
| Okanagan Falls | 02:53:55 | -11.2 | NT | Down | 10.6 | 212.6 | Really Low | 02:38:55 - 03:08:55 | 10109 |
| Oliver | 02:53:56 | -11.2 | NT | Down | 10.7 | 212.7 | Really Low | 02:38:56 - 03:08:56 | 10103 |
| Anarchist Mountain Observatory | 02:53:59 | -11.4 | NT | Down | 10.8 | 212.9 | Really Low | 02:38:59 - 03:08:59 | 10095 |
| Oroville | 02:53:58 | -11.4 | NT | Down | 10.9 | 212.8 | Really Low | 02:38:58 - 03:08:58 | 10093 |
| Tonasket | 02:53:57 | -11.4 | NT | Down | 11.1 | 212.8 | Really Low | 02:38:57 - 03:08:57 | 10084 |
| Okanogan | 02:53:58 | -11.4 | NT | Down | 11.4 | 212.7 | Really Low | 02:38:58 - 03:08:58 | 10074 |
| Brewster | 02:53:58 | -11.3 | NT | Down | 11.7 | 212.6 | Really Low | 02:38:58 - 03:08:58 | 10067 |
| Manson/Chelan | 02:53:58 | -11.1 | NT | Down | 12.0 | 212.3 | Really Low | 02:38:58 - 03:08:58 | 10063 |
| Entiat | 02:53:59 | -11.1 | NT | Down | 12.2 | 212.3 | Really Low | 02:38:59 - 03:08:59 | 10056 |
| Wenatchee | 02:53:59 | -11.1 | NT | Down | 12.5 | 212.2 | Really Low | 02:38:59 - 03:08:59 | 10048 |
| Ellensburg | 02:53:59 | -11.0 | NT | Down | 12.9 | 212.1 | Really Low | 02:38:59 - 03:08:59 | 10034 |
| Yakima | 02:54:02 | -11.1 | NT | Down | 13.3 | 212.1 | Really Low | 02:39:02 - 03:09:02 | 10019 |
| Toppenish/White Swan | 02:54:01 | -11.2 | NT | Down | 13.4 | 212.3 | Really Low | 02:39:01 - 03:09:01 | 10008 |
| Goldendale | 02:54:02 | -11.1 | NT | Down | 14.0 | 212.0 | Really Low | 02:39:02 - 03:09:02 | 9991 |
| Pasco | 02:54:08 | -12.2 | AT | Down | 13.0 | 213.4 | Really Low | 02:39:08 - 03:09:08 | 9988 |
| The Dalles | 02:54:01 | -10.8 | NT | Down | 14.4 | 211.7 | Really Low | 02:39:01 - 03:09:01 | 9986 |
| George/Umatilla | 02:54:09 | -12.1 | AT | Down | 13.4 | 213.3 | Really Low | 02:39:09 - 03:09:09 | 9977 |
| PNWRO | 02:54:11 | -12.4 | AT | Down | 13.1 | 213.6 | Really Low | 02:39:11 - 03:09:11 | 9975 |
| Maupin | 02:54:04 | -11.0 | NT | Down | 14.7 | 211.9 | Really Low | 02:39:04 - 03:09:04 | 9968 |
| Madras/Culver | 02:54:05 | -11.1 | NT | Down | 15.1 | 211.9 | Really Low | 02:39:05 - 03:09:05 | 9945 |
| Sisters | 02:54:03 | -10.8 | NT | Down | 15.6 | 211.5 | Really Low | 02:39:03 - 03:09:03 | 9936 |
| Redmond | 02:54:05 | -11.1 | NT | Down | 15.5 | 211.9 | Really Low | 02:39:05 - 03:09:05 | 9931 |
| Bend | 02:54:05 | -11.0 | NT | Down | 15.7 | 211.8 | Really Low | 02:39:05 - 03:09:05 | 9923 |
| Oregon Observatory | 02:54:06 | -10.9 | NT | Down | 15.9 | 211.7 | Really Low | 02:39:06 - 03:09:06 | 9917 |
| La Pine/Gilchrist | 02:54:05 | -10.9 | NT | Down | 16.1 | 211.7 | Really Low | 02:39:05 - 03:09:05 | 9909 |
| North Lake | 02:54:10 | -11.5 | NT | Down | 16.2 | 212.3 | Really Low | 02:39:10 - 03:09:10 | 9882 |
| Chiloquin | 02:54:09 | -10.9 | NT | Down | 17.2 | 211.6 | Really Low | 02:39:09 - 03:09:09 | 9863 |
| Paisley | 02:54:14 | -11.8 | NT | Down | 16.5 | 212.7 | Really Low | 02:39:14 - 03:09:14 | 9853 |
| Klamath Falls | 02:54:09 | -11.0 | NT | Down | 17.4 | 211.7 | Really Low | 02:39:09 - 03:09:09 | 9846 |
| Tulelake | 02:54:12 | -11.2 | NT | Down | 17.5 | 212.0 | Really Low | 02:39:12 - 03:09:12 | 9830 |
| Lakeview | 02:54:17 | -12.1 | AT | Down | 16.9 | 213.0 | Really Low | 02:39:17 - 03:09:17 | 9827 |
| Cedarville | 02:54:20 | -12.3 | AT | Down | 17.4 | 213.3 | Really Low | 02:39:20 - 03:09:20 | 9793 |
| Fall River/Burney | 02:54:13 | -11.4 | NT | Down | 18.3 | 212.3 | Really Low | 02:39:13 - 03:09:13 | 9785 |
| Susanville | 02:54:20 | -12.1 | AT | Down | 18.5 | 213.0 | Really Low | 02:39:20 - 03:09:20 | 9745 |
| Greenville | 02:54:19 | -11.9 | NT | Down | 18.8 | 212.8 | Really Low | 02:39:19 - 03:09:19 | 9735 |
| Gimple | 02:54:22 | -12.0 | AT | Down | 18.8 | 212.9 | Really Low | 02:39:22 - 03:09:22 | 9734 |
| Quincy | 02:54:22 | -12.0 | NT | Down | 19.0 | 212.9 | Really Low | 02:39:22 - 03:09:22 | 9724 |
| Portola | 02:54:24 | -12.4 | AT | Down | 18.9 | 213.3 | Really Low | 02:39:24 - 03:09:24 | 9712 |
| Reno | 02:54:29 | -12.9 | AT | Down | 18.8 | 214.0 | Really Low | 02:39:29 - 03:09:29 | 9690 |
| Carson City | 02:54:29 | -13.0 | AT | Down | 19.1 | 214.0 | Really Low | 02:39:29 - 03:09:29 | 9671 |
| Gardnerville | 02:54:31 | -13.1 | AT | Down | 19.3 | 214.1 | Really Low | 02:39:31 - 03:09:31 | 9657 |
| Yerington | 02:54:34 | -13.5 | AT | Down | 19.0 | 214.6 | Really Low | 02:39:34 - 03:09:34 | 9652 |
| Hawthorne | 02:54:38 | -14.0 | AT | Down | 19.1 | 215.2 | Really Low | 02:39:38 - 03:09:38 | 9619 |
| Lee Vining | 02:54:37 | -13.7 | AT | Down | 19.8 | 214.9 | Really Low | 02:39:37 - 03:09:37 | 9596 |
| Tonopah | 02:54:47 | -15.2 | AT | Down | 18.9 | 216.5 | Really Low | 02:39:47 - 03:09:47 | 9573 |
| Bishop | 02:54:42 | -14.4 | AT | Down | 20.0 | 215.6 | Really Low | 02:39:42 - 03:09:42 | 9553 |
| Lone Pine | 02:54:47 | -14.8 | AT | Down | 20.4 | 216.1 | Low | 02:39:47 - 03:09:47 | 9505 |
| Beatty | 02:54:52 | -15.8 | AT | Down | 19.6 | 217.1 | Really Low | 02:39:52 - 03:09:52 | 9502 |
| CPSLO | 02:54:36 | -12.9 | AT | Down | 22.7 | 214.2 | Low | 02:39:36 - 03:09:36 | 9468 |
| Indian Springs | 02:54:59 | -16.8 | AT | Down | 19.3 | 218.1 | Really Low | 02:39:59 - 03:09:59 | 9465 |
| Niwot | 02:55:35 | -23.9 | Dark | Down | 11.1 | 225.8 | Really Low | 02:40:35 - 03:10:35 | 9462 |
| Henderson | 02:55:04 | -17.4 | AT | Down | 19.3 | 218.8 | Really Low | 02:40:04 - 03:10:04 | 9423 |
| Searchlight/Boulder City | 02:55:06 | -17.6 | AT | Down | 19.7 | 219.0 | Really Low | 02:40:06 - 03:10:06 | 9388 |
| Patrick | 02:55:13 | -18.5 | Dark | Down | 19.2 | 219.9 | Really Low | 02:40:13 - 03:10:13 | 9366 |
| Wildwood | 02:54:52 | -14.8 | AT | Down | 22.7 | 216.3 | Low | 02:39:52 - 03:09:52 | 9366 |
| Laughlin/Bullhead City | 02:55:11 | -18.0 | AT | Down | 19.8 | 219.4 | Really Low | 02:40:11 - 03:10:11 | 9364 |
| Kingman/Dolan Springs | 02:55:13 | -18.4 | Dark | Down | 19.5 | 219.8 | Really Low | 02:40:13 - 03:10:13 | 9356 |
| Mohave Valley | 02:55:10 | -18.0 | Dark | Down | 20.0 | 219.4 | Really Low | 02:40:10 - 03:10:10 | 9348 |
| DCO | 02:55:17 | -19.1 | Dark | Down | 19.1 | 220.5 | Really Low | 02:40:17 - 03:10:17 | 9335 |
| Lake Havasu City | 02:55:14 | -18.3 | Dark | Down | 20.2 | 219.7 | Low | 02:40:14 - 03:10:14 | 9319 |
| Idyllwild | 02:55:03 | -16.5 | AT | Down | 22.0 | 218.0 | Low | 02:40:03 - 03:10:03 | 9314 |
| Parker | 02:55:16 | -18.4 | Dark | Down | 20.4 | 219.9 | Low | 02:40:16 - 03:10:16 | 9297 |
| Blythe | 02:55:15 | -18.3 | Dark | Down | 21.0 | 219.7 | Low | 02:40:15 - 03:10:15 | 9270 |
| Calipatria | 02:55:13 | -17.6 | AT | Down | 21.9 | 219.1 | Low | 02:40:13 - 03:10:13 | 9255 |
| Yuma | 02:55:17 | -18.4 | Dark | Down | 21.7 | 219.9 | Low | 02:40:17 - 03:10:17 | 9212 |
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 363401, (2019/09/26 02:52UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 6.04 105 23Tau Sco 16:35:53.0 -28:12:58 2.8 6.02 107 26 Oph 17:00:09.6 -24:59:22 5.8 2.19 111 PPM 266128 16:54:50.8 -23:30:45 6.9 0.45 110 PPM 266077 16:52:50.8 -23:18:26 9.4 0.25 109 363401 16:52:53.1 -23:33:41 16.1 110 Positions are for J2000
Event circumstances last updated at 2018/11/28 22:08:34 UT
Marc W. Buie, Southwest Research Institute