Event between 12XR157 and star GA0940:00685293 with event index number of 314011
Geocentric closest approach at 2019/10/15 10:16:40 UTC
J2000 position of star is 05:19:43.3 +04:41:54
Equinox of date position of star is 05:20:45.2 +04:43:01
Stellar brightness G=16.0,
use SENSEUP=128
Star is 42 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=22.5
[RECON map]
TNO is 40.4 AU from the Sun
and 39.9 AU from the Earth.
The TNO is moving 15.3
km/sec on the sky relative to the star, or,
1.9 arcsec/hr.
The 1-sigma error in the time of the event is 154 seconds.
The 1-sigma cross-track error in the shadow position is
2305 km.
The sky-plane scale is
28956.0 km/arcsec.
The TNO has an absolute magnitude Hv=6.3
Diameter=335.7 km assuming a 5% albedo -- 21.9 sec chord
Diameter=137.1 km assuming a 30% albedo -- 8.9 sec chord
Dynamical classification is 2:1E
Star training set for 12XR157, (2019/10/15 10:17UT) Object RA Dec mag sep mel Betelgeuse 05:56:14.6 +07:24:33 0.4 9.22 50 Bellatrix 05:26:11.6 +06:21:58 1.6 2.13 43 PPM 148809 05:22:22.0 +04:01:49 6.3 0.79 42 PPM 148804 05:22:06.1 +04:29:47 8.4 0.40 42 PPM 148784 05:21:26.1 +04:52:40 10.7 0.23 42 12XR157 05:20:46.3 +04:43:02 16.0 42 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 11.7 km
RECON observability=1.0 and success probability=9.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Summerland | 10:14:32 | -38.4 | Dark | Up | 41.3 | 149.8 | Up | 10:01:10 - 10:27:53 | 3862 |
| Kelowna | 10:14:31 | -38.0 | Dark | Up | 41.1 | 150.3 | Up | 10:01:10 - 10:27:53 | 3859 |
| Penticton | 10:14:32 | -38.4 | Dark | Up | 41.4 | 149.9 | Up | 10:01:10 - 10:27:53 | 3854 |
| Okanagan Falls | 10:14:33 | -38.5 | Dark | Up | 41.5 | 149.8 | Up | 10:01:11 - 10:27:54 | 3849 |
| Oliver | 10:14:33 | -38.6 | Dark | Up | 41.7 | 149.7 | Up | 10:01:12 - 10:27:55 | 3842 |
| Oroville | 10:14:37 | -38.7 | Dark | Up | 42.0 | 149.8 | Up | 10:01:15 - 10:27:58 | 3828 |
| Anarchist Mountain Observatory | 10:14:33 | -38.6 | Dark | Up | 41.9 | 149.9 | Up | 10:01:12 - 10:27:55 | 3827 |
| Manson/Chelan | 10:14:42 | -39.7 | Dark | Up | 42.6 | 148.4 | Up | 10:01:21 - 10:28:04 | 3825 |
| Entiat | 10:14:44 | -39.9 | Dark | Up | 42.8 | 148.2 | Up | 10:01:22 - 10:28:05 | 3820 |
| Tonasket | 10:14:35 | -38.8 | Dark | Up | 42.2 | 149.7 | Up | 10:01:14 - 10:27:57 | 3819 |
| Wenatchee | 10:14:47 | -40.1 | Dark | Up | 43.0 | 148.0 | Up | 10:01:25 - 10:28:08 | 3816 |
| Okanogan | 10:14:40 | -39.1 | Dark | Up | 42.4 | 149.4 | Up | 10:01:18 - 10:28:01 | 3814 |
| Brewster | 10:14:42 | -39.4 | Dark | Up | 42.6 | 149.0 | Up | 10:01:21 - 10:28:04 | 3814 |
| Ellensburg | 10:14:48 | -40.4 | Dark | Up | 43.2 | 147.5 | Up | 10:01:27 - 10:28:10 | 3812 |
| Yakima | 10:14:51 | -40.7 | Dark | Up | 43.6 | 147.3 | Up | 10:01:30 - 10:28:13 | 3797 |
| The Dalles | 10:14:57 | -41.6 | Dark | Up | 44.2 | 146.0 | Up | 10:01:36 - 10:28:19 | 3791 |
| Goldendale | 10:14:55 | -41.3 | Dark | Up | 44.1 | 146.6 | Up | 10:01:33 - 10:28:16 | 3781 |
| Toppenish/White Swan | 10:14:53 | -40.7 | Dark | Up | 43.8 | 147.4 | Up | 10:01:31 - 10:28:14 | 3781 |
| Maupin | 10:15:00 | -41.8 | Dark | Up | 44.6 | 145.9 | Up | 10:01:38 - 10:28:21 | 3770 |
| Sisters | 10:15:05 | -42.7 | Dark | Up | 45.1 | 144.8 | Up | 10:01:44 - 10:28:27 | 3760 |
| Madras/Culver | 10:15:02 | -42.2 | Dark | Up | 45.0 | 145.6 | Up | 10:01:41 - 10:28:24 | 3750 |
| Redmond | 10:15:05 | -42.4 | Dark | Up | 45.3 | 145.3 | Up | 10:01:44 - 10:28:27 | 3738 |
| Bend | 10:15:06 | -42.7 | Dark | Up | 45.4 | 145.0 | Up | 10:01:44 - 10:28:27 | 3737 |
| Oregon Observatory | 10:15:08 | -42.8 | Dark | Up | 45.5 | 144.8 | Up | 10:01:46 - 10:28:29 | 3737 |
| La Pine/Gilchrist | 10:15:08 | -43.0 | Dark | Up | 45.6 | 144.6 | Up | 10:01:47 - 10:28:30 | 3732 |
| Pasco | 10:14:48 | -40.1 | Dark | Up | 44.4 | 149.0 | Up | 10:01:26 - 10:28:09 | 3711 |
| George/Umatilla | 10:14:51 | -40.4 | Dark | Up | 44.6 | 148.5 | Up | 10:01:30 - 10:28:13 | 3709 |
| Chiloquin | 10:15:17 | -43.8 | Dark | Up | 46.4 | 143.5 | Up | 10:01:56 - 10:28:39 | 3705 |
| PNWRO | 10:14:48 | -40.2 | Dark | Up | 44.7 | 149.1 | Up | 10:01:27 - 10:28:10 | 3690 |
| Klamath Falls | 10:15:19 | -44.0 | Dark | Up | 46.7 | 143.4 | Up | 10:01:58 - 10:28:41 | 3686 |
| North Lake | 10:15:09 | -42.9 | Dark | Up | 46.3 | 145.1 | Up | 10:01:47 - 10:28:30 | 3682 |
| Tulelake | 10:15:17 | -44.0 | Dark | Up | 47.1 | 143.6 | Up | 10:01:56 - 10:28:39 | 3658 |
| Paisley | 10:15:12 | -43.0 | Dark | Up | 46.9 | 145.3 | Up | 10:01:51 - 10:28:34 | 3639 |
| Fall River/Burney | 10:15:24 | -44.5 | Dark | Up | 47.9 | 143.1 | Up | 10:02:03 - 10:28:46 | 3614 |
| Lakeview | 10:15:13 | -43.2 | Dark | Up | 47.4 | 145.2 | Up | 10:01:51 - 10:28:34 | 3607 |
| Cedarville | 10:15:16 | -43.4 | Dark | Up | 48.0 | 145.0 | Up | 10:01:54 - 10:28:37 | 3569 |
| Greenville | 10:15:24 | -44.7 | Dark | Up | 48.8 | 143.1 | Up | 10:02:03 - 10:28:46 | 3549 |
| Susanville | 10:15:24 | -44.3 | Dark | Up | 48.7 | 143.7 | Up | 10:02:03 - 10:28:46 | 3545 |
| Gimple | 10:15:24 | -44.6 | Dark | Up | 48.8 | 143.2 | Up | 10:02:03 - 10:28:46 | 3544 |
| Quincy | 10:15:26 | -44.8 | Dark | Up | 48.9 | 143.0 | Up | 10:02:04 - 10:28:47 | 3539 |
| Portola | 10:15:24 | -44.6 | Dark | Up | 49.3 | 143.6 | Up | 10:02:03 - 10:28:46 | 3507 |
| Reno | 10:15:25 | -44.3 | Dark | Up | 49.8 | 144.3 | Up | 10:02:04 - 10:28:47 | 3458 |
| Carson City | 10:15:26 | -44.5 | Dark | Up | 50.1 | 144.1 | Up | 10:02:04 - 10:28:47 | 3439 |
| Gardnerville | 10:15:29 | -44.6 | Dark | Up | 50.3 | 144.0 | Up | 10:02:07 - 10:28:50 | 3425 |
| Yerington | 10:15:24 | -44.2 | Dark | Up | 50.5 | 144.8 | Up | 10:02:03 - 10:28:46 | 3394 |
| Lee Vining | 10:15:31 | -44.6 | Dark | Up | 51.4 | 144.2 | Up | 10:02:10 - 10:28:53 | 3341 |
| Hawthorne | 10:15:28 | -44.0 | Dark | Up | 51.1 | 145.2 | Up | 10:02:06 - 10:28:49 | 3341 |
| CPSLO | 10:15:45 | -47.0 | Dark | Up | 52.8 | 140.0 | Up | 10:02:24 - 10:29:07 | 3298 |
| Bishop | 10:15:33 | -44.4 | Dark | Up | 52.2 | 144.8 | Up | 10:02:12 - 10:28:55 | 3269 |
| Tonopah | 10:15:24 | -43.3 | Dark | Up | 52.1 | 146.9 | Up | 10:02:03 - 10:28:46 | 3235 |
| Lone Pine | 10:15:34 | -44.6 | Dark | Up | 53.0 | 144.7 | Up | 10:02:12 - 10:28:55 | 3209 |
| Beatty | 10:15:28 | -43.5 | Dark | Up | 53.3 | 146.8 | Up | 10:02:06 - 10:28:49 | 3148 |
| Wildwood | 10:15:45 | -46.1 | Dark | Up | 54.8 | 141.9 | Up | 10:02:24 - 10:29:07 | 3109 |
| Indian Springs | 10:15:24 | -42.9 | Dark | Up | 54.1 | 148.2 | Up | 10:02:03 - 10:28:46 | 3066 |
| Henderson | 10:15:26 | -42.6 | Dark | Up | 54.8 | 148.9 | Up | 10:02:04 - 10:28:47 | 2994 |
| Idyllwild | 10:15:45 | -44.8 | Dark | Up | 56.0 | 144.5 | Up | 10:02:24 - 10:29:07 | 2972 |
| Searchlight/Boulder City | 10:15:29 | -42.8 | Dark | Up | 55.3 | 148.6 | Up | 10:02:08 - 10:28:51 | 2959 |
| Laughlin/Bullhead City | 10:15:29 | -42.7 | Dark | Up | 55.7 | 148.9 | Up | 10:02:08 - 10:28:51 | 2921 |
| Mohave Valley | 10:15:31 | -42.8 | Dark | Up | 56.0 | 148.7 | Up | 10:02:10 - 10:28:53 | 2905 |
| Patrick | 10:15:25 | -42.1 | Dark | Up | 55.8 | 150.2 | Up | 10:02:04 - 10:28:47 | 2891 |
| Kingman/Dolan Springs | 10:15:26 | -42.3 | Dark | Up | 55.9 | 149.7 | Up | 10:02:05 - 10:28:48 | 2890 |
| Lake Havasu City | 10:15:31 | -42.7 | Dark | Up | 56.4 | 148.8 | Up | 10:02:10 - 10:28:53 | 2867 |
| Calipatria | 10:15:42 | -44.2 | Dark | Up | 57.1 | 145.8 | Up | 10:02:21 - 10:29:04 | 2863 |
| Parker | 10:15:31 | -42.9 | Dark | Up | 56.7 | 148.6 | Up | 10:02:10 - 10:28:53 | 2845 |
| Blythe | 10:15:37 | -43.3 | Dark | Up | 57.1 | 147.7 | Up | 10:02:15 - 10:28:58 | 2833 |
| DCO | 10:15:23 | -41.6 | Dark | Up | 56.4 | 151.1 | Up | 10:02:01 - 10:28:44 | 2830 |
| Yuma | 10:15:42 | -43.6 | Dark | Up | 57.8 | 146.9 | Up | 10:02:20 - 10:29:03 | 2781 |
| Niwot | 10:14:28 | -34.1 | Dark | Up | 53.9 | 166.7 | Up | 10:01:06 - 10:27:49 | 2639 |
| SwRI | 10:14:30 | -34.2 | Dark | Up | 54.0 | 166.5 | Up | 10:01:08 - 10:27:51 | 2639 |
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 12XR157, (2019/10/15 10:17UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 9.22 50 Bellatrix 05:25:07.8 +06:20:58 1.6 2.13 43 PPM 148809 05:21:19.3 +04:00:43 6.3 0.79 42 PPM 148804 05:21:03.2 +04:28:41 8.4 0.40 42 PPM 148784 05:20:23.0 +04:51:32 10.7 0.23 42 12XR157 05:19:43.3 +04:41:54 16.0 42 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:45:14 UT
Marc W. Buie, Southwest Research Institute