Event between (250112) 02KY14 and star GA1020:01621952 with event index number of 184200
Geocentric closest approach at 2019/04/01 03:13:18 UTC
J2000 position of star is 06:17:17.2 +12:25:37
Equinox of date position of star is 06:18:19.3 +12:25:09
Stellar brightness G=16.5,
use SENSEUP=128
Star is 129 degrees from the moon.
Moon is 16% illuminated.
TNO apparent brightness V=21.3
[RECON map]
TNO is 13.1 AU from the Sun
and 13.2 AU from the Earth.
The TNO is moving 10.9
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 108 seconds.
The 1-sigma cross-track error in the shadow position is
614 km.
The sky-plane scale is
9541.9 km/arcsec.
The TNO has an absolute magnitude Hv=9.7
Diameter=69.2 km assuming a 5% albedo -- 6.3 sec chord
Diameter=28.2 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CENTAURR
Star training set for 250112, (2019/04/01 03:13UT) Object RA Dec mag sep mel Betelgeuse 05:56:12.9 +07:24:33 0.4 7.41 122 Alhena 06:38:49.4 +16:22:53 1.9 6.34 134 73 Ori 06:16:49.8 +12:32:36 5.4 0.40 128 PPM 122223 06:18:11.1 +11:58:12 8.2 0.45 128 PPM 122216 06:17:52.3 +12:04:02 8.7 0.37 128 PPM 122238 06:18:58.2 +12:18:03 10.7 0.19 129 250112 06:18:22.0 +12:25:07 16.5 129 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 38.9 km
RECON observability=0.2 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) |
| Penticton | 03:13:49 | -8.1 | CT | Down | 48.0 | 216.1 | Up | 03:04:22 - 03:23:17 | 6991 |
| Oroville | 03:13:51 | -8.3 | CT | Down | 48.5 | 216.7 | Up | 03:04:23 - 03:23:18 | 6933 |
| Tonasket | 03:13:50 | -8.4 | CT | Down | 48.7 | 216.8 | Up | 03:04:22 - 03:23:17 | 6911 |
| Okanogan | 03:13:51 | -8.4 | CT | Down | 49.0 | 216.8 | Up | 03:04:24 - 03:23:19 | 6882 |
| Brewster | 03:13:49 | -8.3 | CT | Down | 49.3 | 216.7 | Up | 03:04:21 - 03:23:16 | 6859 |
| Manson/Chelan | 03:13:48 | -8.1 | CT | Down | 49.6 | 216.4 | Up | 03:04:20 - 03:23:15 | 6844 |
| Entiat | 03:13:47 | -8.2 | CT | Down | 49.8 | 216.4 | Up | 03:04:19 - 03:23:14 | 6824 |
| Wenatchee | 03:13:46 | -8.2 | CT | Down | 50.1 | 216.5 | Up | 03:04:19 - 03:23:14 | 6801 |
| Ellensburg | 03:13:44 | -8.1 | CT | Down | 50.5 | 216.4 | Up | 03:04:16 - 03:23:11 | 6765 |
| Yakima | 03:13:45 | -8.2 | CT | Down | 50.8 | 216.7 | Up | 03:04:18 - 03:23:13 | 6726 |
| Toppenish/White Swan | 03:13:46 | -8.4 | CT | Down | 50.9 | 217.1 | Up | 03:04:19 - 03:23:14 | 6703 |
| Pasco | 03:13:55 | -9.3 | CT | Down | 50.5 | 219.0 | Up | 03:04:27 - 03:23:22 | 6674 |
| Goldendale | 03:13:44 | -8.3 | CT | Down | 51.5 | 216.9 | Up | 03:04:17 - 03:23:12 | 6656 |
| PNWRO | 03:13:56 | -9.5 | CT | Down | 50.6 | 219.5 | Up | 03:04:29 - 03:23:24 | 6647 |
| George/Umatilla | 03:13:54 | -9.2 | CT | Down | 50.8 | 219.0 | Up | 03:04:26 - 03:23:21 | 6645 |
| The Dalles | 03:13:41 | -8.1 | CT | Down | 51.9 | 216.6 | Up | 03:04:14 - 03:23:09 | 6640 |
| Maupin | 03:13:42 | -8.2 | CT | Down | 52.2 | 217.0 | Up | 03:04:14 - 03:23:09 | 6598 |
| Madras/Culver | 03:13:42 | -8.3 | CT | Down | 52.6 | 217.4 | Up | 03:04:15 - 03:23:10 | 6545 |
| Sisters | 03:13:38 | -8.1 | CT | Down | 53.1 | 217.0 | Up | 03:04:11 - 03:23:06 | 6520 |
| Redmond | 03:13:42 | -8.4 | CT | Down | 52.9 | 217.6 | Up | 03:04:15 - 03:23:10 | 6511 |
| Bend | 03:13:41 | -8.4 | CT | Down | 53.2 | 217.6 | Up | 03:04:14 - 03:23:09 | 6493 |
| Oregon Observatory | 03:13:40 | -8.3 | CT | Down | 53.4 | 217.5 | Up | 03:04:13 - 03:23:08 | 6478 |
| La Pine/Gilchrist | 03:13:40 | -8.3 | CT | Down | 53.6 | 217.6 | Up | 03:04:12 - 03:23:07 | 6458 |
| North Lake | 03:13:43 | -8.9 | CT | Down | 53.6 | 218.9 | Up | 03:04:16 - 03:23:11 | 6407 |
| Chiloquin | 03:13:37 | -8.3 | CT | Down | 54.6 | 218.0 | Up | 03:04:10 - 03:23:05 | 6355 |
| Paisley | 03:13:46 | -9.3 | CT | Down | 53.9 | 219.9 | Up | 03:04:19 - 03:23:14 | 6347 |
| Klamath Falls | 03:13:37 | -8.5 | CT | Down | 54.8 | 218.4 | Up | 03:04:10 - 03:23:05 | 6319 |
| Lakeview | 03:13:47 | -9.5 | CT | Down | 54.2 | 220.6 | Up | 03:04:20 - 03:23:15 | 6293 |
| Tulelake | 03:13:39 | -8.8 | CT | Down | 54.9 | 219.1 | Up | 03:04:12 - 03:23:07 | 6288 |
| Cedarville | 03:13:49 | -9.8 | CT | Down | 54.6 | 221.5 | Up | 03:04:22 - 03:23:17 | 6225 |
| Fall River/Burney | 03:13:39 | -9.0 | CT | Down | 55.6 | 220.1 | Up | 03:04:12 - 03:23:07 | 6196 |
| Susanville | 03:13:46 | -9.8 | CT | Down | 55.7 | 221.8 | Up | 03:04:18 - 03:23:13 | 6121 |
| Greenville | 03:13:43 | -9.6 | CT | Down | 56.0 | 221.6 | Up | 03:04:15 - 03:23:10 | 6098 |
| Gimple | 03:13:44 | -9.7 | CT | Down | 56.0 | 221.8 | Up | 03:04:17 - 03:23:12 | 6096 |
| Quincy | 03:13:43 | -9.6 | CT | Down | 56.2 | 221.9 | Up | 03:04:16 - 03:23:11 | 6077 |
| Portola | 03:13:46 | -10.0 | CT | Down | 56.0 | 222.7 | Up | 03:04:19 - 03:23:14 | 6057 |
| Reno | 03:13:53 | -10.6 | CT | Down | 55.8 | 224.0 | Up | 03:04:25 - 03:23:20 | 6020 |
| Carson City | 03:13:51 | -10.7 | CT | Down | 56.1 | 224.4 | Up | 03:04:24 - 03:23:19 | 5983 |
| Gardnerville | 03:13:52 | -10.8 | CT | Down | 56.2 | 224.7 | Up | 03:04:24 - 03:23:19 | 5957 |
| Yerington | 03:13:55 | -11.3 | CT | Down | 55.9 | 225.5 | Up | 03:04:28 - 03:23:23 | 5953 |
| Niwot | 03:15:30 | -21.3 | Dark | Down | 46.3 | 241.8 | Up | 03:06:02 - 03:24:57 | 5905 |
| Hawthorne | 03:14:00 | -11.8 | CT | Down | 55.9 | 226.8 | Up | 03:04:32 - 03:23:27 | 5898 |
| Lee Vining | 03:13:56 | -11.6 | CT | Down | 56.6 | 226.7 | Up | 03:04:29 - 03:23:24 | 5847 |
| Tonopah | 03:14:10 | -13.0 | AT | Down | 55.3 | 229.3 | Up | 03:04:43 - 03:23:38 | 5829 |
| Bishop | 03:14:02 | -12.3 | AT | Down | 56.5 | 228.4 | Up | 03:04:35 - 03:23:30 | 5775 |
| Beatty | 03:14:14 | -13.7 | AT | Down | 55.8 | 231.3 | Up | 03:04:47 - 03:23:42 | 5702 |
| Lone Pine | 03:14:05 | -12.8 | AT | Down | 56.8 | 229.8 | Up | 03:04:38 - 03:23:33 | 5691 |
| Indian Springs | 03:14:22 | -14.7 | AT | Down | 55.3 | 233.1 | Up | 03:04:54 - 03:23:49 | 5653 |
| CPSLO | 03:13:43 | -11.0 | CT | Down | 59.3 | 227.4 | Up | 03:04:16 - 03:23:11 | 5598 |
| Henderson | 03:14:26 | -15.4 | AT | Down | 55.1 | 234.6 | Up | 03:04:58 - 03:23:53 | 5587 |
| Searchlight/Boulder City | 03:14:27 | -15.6 | AT | Down | 55.4 | 235.4 | Up | 03:05:00 - 03:23:55 | 5526 |
| Patrick | 03:14:28 | -16.4 | AT | Down | 54.7 | 236.8 | Up | 03:05:01 - 03:23:56 | 5507 |
| Laughlin/Bullhead City | 03:14:28 | -15.9 | AT | Down | 55.4 | 236.2 | Up | 03:05:01 - 03:23:56 | 5490 |
| Kingman/Dolan Springs | 03:14:28 | -16.3 | AT | Down | 55.0 | 236.8 | Up | 03:05:01 - 03:23:56 | 5486 |
| DCO | 03:14:28 | -17.1 | AT | Down | 54.4 | 238.0 | Up | 03:05:01 - 03:23:56 | 5466 |
| Mohave Valley | 03:14:28 | -16.0 | AT | Down | 55.5 | 236.5 | Up | 03:05:01 - 03:23:56 | 5461 |
| Wildwood | 03:13:59 | -13.0 | AT | Down | 58.8 | 232.1 | Up | 03:04:32 - 03:23:27 | 5437 |
| Lake Havasu City | 03:14:28 | -16.3 | AT | Down | 55.5 | 237.3 | Up | 03:05:01 - 03:23:56 | 5416 |
| Parker | 03:14:28 | -16.5 | AT | Down | 55.7 | 237.8 | Up | 03:05:01 - 03:23:56 | 5378 |
| Idyllwild | 03:14:14 | -14.6 | AT | Down | 57.7 | 235.2 | Up | 03:04:47 - 03:23:42 | 5370 |
| Blythe | 03:14:28 | -16.4 | AT | Down | 56.2 | 238.1 | Up | 03:05:01 - 03:23:56 | 5327 |
| Calipatria | 03:14:23 | -15.8 | AT | Down | 57.1 | 237.5 | Up | 03:04:56 - 03:23:51 | 5288 |
| Yuma | 03:14:28 | -16.6 | AT | Down | 56.7 | 239.2 | Up | 03:05:01 - 03:23:56 | 5229 |
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 250112, (2019/04/01 03:13UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 7.41 122 Alhena 06:37:42.8 +16:23:57 1.9 6.34 134 73 Ori 06:15:44.9 +12:33:03 5.4 0.40 128 PPM 122223 06:17:06.5 +11:58:41 8.2 0.45 128 PPM 122216 06:16:47.6 +12:04:31 8.7 0.37 128 PPM 122238 06:17:53.5 +12:18:34 10.7 0.19 129 250112 06:17:17.2 +12:25:37 16.5 128 Positions are for J2000
Event circumstances last updated at 2018/06/11 22:53:24 UT
Marc W. Buie, Southwest Research Institute