Event between 13UX18 and star GA0960:00120990 with event index number of 1665721
Geocentric closest approach at 2019/12/11 02:50:55 UTC
J2000 position of star is 01:23:18.4 +06:03:21
Equinox of date position of star is 01:24:20.7 +06:09:34
Stellar brightness G=15.6,
use SENSEUP=128
Star is 44 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=23.8
[RECON map]
TNO is 45.9 AU from the Sun
and 45.3 AU from the Earth.
The TNO is moving 12.1
km/sec on the sky relative to the star, or,
1.3 arcsec/hr.
The 1-sigma error in the time of the event is 264 seconds.
The 1-sigma cross-track error in the shadow position is
2755 km.
The sky-plane scale is
32862.5 km/arcsec.
The TNO has an absolute magnitude Hv=7.1
Diameter=224.9 km assuming a 5% albedo -- 18.6 sec chord
Diameter=91.8 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 13UX18, (2019/12/11 02:51UT) Object RA Dec mag sep mel 6Bet Ari 01:55:44.8 +20:54:17 2.6 16.59 33 98Mu Psc 01:31:14.0 +06:14:45 4.8 1.71 42 PPM 144522 01:23:25.7 +05:21:18 7.6 0.84 44 PPM 144523 01:23:29.2 +05:50:18 9.7 0.39 44 PPM 144545 01:24:35.3 +06:14:12 10.2 0.10 44 13UX18 01:24:20.7 +06:09:34 15.6 44 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
3.4 sigma about the mid-time.
The median site spacing is 20.3 km
RECON observability=1.0 and success probability=0.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Clarence Fulton | 02:51:02 | -27.0 | Dark | Up | 43.3 | 155.2 | Up | 02:36:02 - 03:06:02 | 12543 |
| Kelowna | 02:51:05 | -26.9 | Dark | Up | 43.7 | 154.9 | Up | 02:36:05 - 03:06:05 | 12520 |
| Victoria | 02:51:32 | -24.3 | Dark | Up | 43.7 | 149.3 | Up | 02:36:32 - 03:06:32 | 12508 |
| Summerland | 02:51:09 | -26.8 | Dark | Up | 43.8 | 154.5 | Up | 02:36:09 - 03:06:09 | 12506 |
| Penticton | 02:51:07 | -26.8 | Dark | Up | 43.9 | 154.6 | Up | 02:36:07 - 03:06:07 | 12499 |
| Oliver | 02:51:08 | -26.8 | Dark | Up | 44.3 | 154.5 | Up | 02:36:08 - 03:06:08 | 12474 |
| Anarchist Mountain Observatory | 02:51:07 | -26.9 | Dark | Up | 44.5 | 154.7 | Up | 02:36:07 - 03:06:07 | 12458 |
| Tonasket | 02:51:10 | -26.9 | Dark | Up | 44.7 | 154.5 | Up | 02:36:10 - 03:06:10 | 12437 |
| Okanogan | 02:51:11 | -26.7 | Dark | Up | 45.0 | 154.1 | Up | 02:36:11 - 03:06:11 | 12416 |
| Brewster | 02:51:14 | -26.6 | Dark | Up | 45.2 | 153.8 | Up | 02:36:14 - 03:06:14 | 12401 |
| Manson/Chelan | 02:51:16 | -26.3 | Dark | Up | 45.3 | 153.2 | Up | 02:36:16 - 03:06:16 | 12394 |
| Entiat | 02:51:18 | -26.3 | Dark | Up | 45.4 | 153.0 | Up | 02:36:18 - 03:06:18 | 12379 |
| Wenatchee | 02:51:20 | -26.2 | Dark | Up | 45.6 | 152.8 | Up | 02:36:20 - 03:06:20 | 12363 |
| Ellensburg | 02:51:22 | -26.0 | Dark | Up | 45.9 | 152.3 | Up | 02:36:22 - 03:06:22 | 12337 |
| Yakima | 02:51:24 | -25.9 | Dark | Up | 46.3 | 152.1 | Up | 02:36:24 - 03:06:24 | 12308 |
| Toppenish/White Swan | 02:51:25 | -26.0 | Dark | Up | 46.5 | 152.2 | Up | 02:36:25 - 03:06:25 | 12288 |
| Goldendale | 02:51:30 | -25.7 | Dark | Up | 46.9 | 151.4 | Up | 02:36:30 - 03:06:30 | 12256 |
| Pasco | 02:51:18 | -26.9 | Dark | Up | 47.0 | 153.8 | Up | 02:36:18 - 03:06:18 | 12251 |
| The Dalles | 02:51:31 | -25.4 | Dark | Up | 47.0 | 150.8 | Up | 02:36:31 - 03:06:31 | 12248 |
| PNWRO | 02:51:17 | -27.0 | Dark | Up | 47.3 | 154.0 | Up | 02:36:17 - 03:06:17 | 12227 |
| Maupin | 02:51:33 | -25.4 | Dark | Up | 47.4 | 150.7 | Up | 02:36:33 - 03:06:33 | 12214 |
| Sisters | 02:51:40 | -25.0 | Dark | Up | 48.0 | 149.6 | Up | 02:36:40 - 03:06:40 | 12158 |
| Redmond | 02:51:35 | -25.2 | Dark | Up | 48.1 | 150.1 | Up | 02:36:35 - 03:06:35 | 12147 |
| Bend | 02:51:39 | -25.1 | Dark | Up | 48.3 | 149.8 | Up | 02:36:39 - 03:06:39 | 12134 |
| Oregon Observatory | 02:51:40 | -25.0 | Dark | Up | 48.4 | 149.5 | Up | 02:36:40 - 03:06:40 | 12124 |
| La Pine/Gilchrist | 02:51:41 | -24.9 | Dark | Up | 48.5 | 149.3 | Up | 02:36:41 - 03:06:41 | 12110 |
| North Lake | 02:51:37 | -25.3 | Dark | Up | 49.1 | 149.9 | Up | 02:36:37 - 03:06:37 | 12062 |
| Paisley | 02:51:40 | -25.5 | Dark | Up | 49.7 | 150.1 | Up | 02:36:40 - 03:06:40 | 12010 |
| Klamath Falls | 02:51:47 | -24.5 | Dark | Up | 49.7 | 148.1 | Up | 02:36:47 - 03:06:47 | 12002 |
| Lakeview | 02:51:40 | -25.5 | Dark | Up | 50.2 | 150.1 | Up | 02:36:40 - 03:06:40 | 11965 |
| Cedarville | 02:51:42 | -25.6 | Dark | Up | 50.9 | 149.9 | Up | 02:36:42 - 03:06:42 | 11908 |
| Fall River/Burney | 02:51:51 | -24.6 | Dark | Up | 50.8 | 147.9 | Up | 02:36:51 - 03:06:51 | 11899 |
| Susanville | 02:51:50 | -25.1 | Dark | Up | 51.7 | 148.6 | Up | 02:36:50 - 03:06:50 | 11830 |
| Greenville | 02:51:51 | -24.8 | Dark | Up | 51.8 | 148.0 | Up | 02:36:51 - 03:06:51 | 11814 |
| Gimple | 02:51:52 | -24.9 | Dark | Up | 51.8 | 148.1 | Up | 02:36:52 - 03:06:52 | 11812 |
| Quincy | 02:51:52 | -24.8 | Dark | Up | 52.0 | 147.8 | Up | 02:36:52 - 03:06:52 | 11797 |
| Portola | 02:51:50 | -25.1 | Dark | Up | 52.2 | 148.4 | Up | 02:36:50 - 03:06:50 | 11776 |
| Reno | 02:51:47 | -25.5 | Dark | Up | 52.7 | 149.2 | Up | 02:36:47 - 03:06:47 | 11738 |
| Carson City | 02:51:48 | -25.5 | Dark | Up | 53.0 | 149.0 | Up | 02:36:48 - 03:06:48 | 11707 |
| Gardnerville | 02:51:47 | -25.5 | Dark | Up | 53.3 | 148.9 | Up | 02:36:47 - 03:06:47 | 11686 |
| Yerington | 02:51:46 | -25.9 | Dark | Up | 53.5 | 149.8 | Up | 02:36:46 - 03:06:46 | 11675 |
| Hawthorne | 02:51:43 | -26.3 | Dark | Up | 54.1 | 150.3 | Up | 02:36:43 - 03:06:43 | 11623 |
| Lee Vining | 02:51:49 | -25.8 | Dark | Up | 54.4 | 149.2 | Up | 02:36:49 - 03:06:49 | 11588 |
| Tonopah | 02:51:36 | -27.3 | Dark | Up | 55.0 | 152.2 | Up | 02:36:36 - 03:06:36 | 11548 |
| Bishop | 02:51:47 | -26.3 | Dark | Up | 55.2 | 149.9 | Up | 02:36:47 - 03:06:47 | 11518 |
| Beatty | 02:51:38 | -27.4 | Dark | Up | 56.2 | 152.2 | Up | 02:36:38 - 03:06:38 | 11436 |
| Niwot | 02:50:11 | -36.5 | Dark | Up | 55.8 | 173.1 | Up | 02:35:11 - 03:05:11 | 11432 |
| SwRI | 02:50:12 | -36.4 | Dark | Up | 55.9 | 172.9 | Up | 02:35:12 - 03:05:12 | 11425 |
| CPSLO | 02:52:05 | -24.1 | Dark | Up | 56.0 | 144.8 | Up | 02:37:05 - 03:07:05 | 11397 |
| Indian Springs | 02:51:32 | -28.2 | Dark | Up | 56.9 | 153.7 | Up | 02:36:32 - 03:06:32 | 11380 |
| Henderson | 02:51:28 | -28.7 | Dark | Up | 57.6 | 154.5 | Up | 02:36:28 - 03:06:28 | 11315 |
| Searchlight/Boulder City | 02:51:31 | -28.7 | Dark | Up | 58.1 | 154.3 | Up | 02:36:31 - 03:06:31 | 11263 |
| Wildwood | 02:52:00 | -25.5 | Dark | Up | 57.9 | 147.1 | Up | 02:37:00 - 03:07:00 | 11236 |
| Patrick | 02:51:23 | -29.5 | Dark | Up | 58.5 | 156.1 | Up | 02:36:23 - 03:06:23 | 11231 |
| Laughlin/Bullhead City | 02:51:28 | -28.9 | Dark | Up | 58.5 | 154.6 | Up | 02:36:28 - 03:06:28 | 11227 |
| Kingman/Dolan Springs | 02:51:24 | -29.3 | Dark | Up | 58.7 | 155.6 | Up | 02:36:24 - 03:06:24 | 11216 |
| Mohave Valley | 02:51:29 | -28.8 | Dark | Up | 58.8 | 154.5 | Up | 02:36:29 - 03:06:29 | 11202 |
| DCO | 02:51:19 | -30.0 | Dark | Up | 59.0 | 157.1 | Up | 02:36:19 - 03:06:19 | 11185 |
| Lake Havasu City | 02:51:29 | -29.0 | Dark | Up | 59.2 | 154.6 | Up | 02:36:29 - 03:06:29 | 11160 |
| Idyllwild | 02:51:49 | -27.0 | Dark | Up | 59.0 | 149.9 | Up | 02:36:49 - 03:06:49 | 11155 |
| Parker | 02:51:30 | -29.0 | Dark | Up | 59.6 | 154.4 | Up | 02:36:30 - 03:06:30 | 11127 |
| Blythe | 02:51:35 | -28.6 | Dark | Up | 59.9 | 153.5 | Up | 02:36:35 - 03:06:35 | 11087 |
| Calipatria | 02:51:42 | -27.8 | Dark | Up | 60.0 | 151.5 | Up | 02:36:42 - 03:06:42 | 11067 |
| George/Scottsdale | 02:51:14 | -30.8 | Dark | Up | 60.7 | 158.6 | Up | 02:36:14 - 03:06:14 | 11025 |
| Yuma | 02:51:37 | -28.5 | Dark | Up | 60.7 | 152.7 | Up | 02:36:37 - 03:06:37 | 11004 |
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 13UX18, (2019/12/11 02:51UT) Object RA Dec mag sep mel 6Bet Ari 01:54:38.5 +20:48:27 2.6 16.59 33 98Mu Psc 01:30:11.5 +06:08:37 4.8 1.71 42 PPM 144522 01:22:23.5 +05:15:04 7.6 0.84 44 PPM 144523 01:22:27.0 +05:44:04 9.7 0.39 44 PPM 144545 01:23:33.0 +06:07:59 10.2 0.10 44 13UX18 01:23:18.4 +06:03:21 15.6 44 Positions are for J2000
Event circumstances last updated at 2019/12/01 22:49:34 UT
Marc W. Buie, Southwest Research Institute