Event between (470593) 08LP17 and star GA0640:16967880 with event index number of 2271304
Geocentric closest approach at 2023/04/19 11:15:02 UTC
J2000 position of star is 17:35:35.7 -25:59:42
Equinox of date position of star is 17:37:00.4 -26:00:29
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 115 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=21.6
[RECON map]
TNO is 31.1 AU from the Sun
and 30.5 AU from the Earth.
The TNO is moving 10.2
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 179 seconds.
The 1-sigma cross-track error in the shadow position is
1272 km.
The sky-plane scale is
22156.7 km/arcsec.
The TNO has an absolute magnitude Hv=6.5
Diameter=346.7 km assuming a 5% albedo -- 29.2 sec chord
Diameter=141.6 km assuming a 30% albedo -- 11.9 sec chord
Dynamical classification is CENTAURR
Star training set for 470593, (2023/04/19 11:16UT) Object RA Dec mag sep mel Antares 16:30:50.4 -26:28:54 0.9 14.84 130 34Ups Sco 17:32:21.0 -37:18:43 2.7 11.35 115 PPM 266967 17:33:11.3 -26:17:07 6.3 0.91 116 PPM 267027 17:36:13.5 -26:45:13 8.4 0.77 116 PPM 267010 17:35:24.5 -25:59:53 10.0 0.37 116 470593 17:37:02.4 -26:00:30 16.2 115 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 15.8 km
RECON observability=0.6 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) |
| Kamloops | 11:13:44 | -15.3 | AT | Down | 13.0 | 172.1 | Really Low | 10:58:44 - 11:28:44 | 7014 |
| Victoria | 11:14:10 | -18.2 | Dark | Down | 14.8 | 169.3 | Really Low | 10:59:10 - 11:29:10 | 6994 |
| Peachland | 11:13:42 | -15.6 | AT | Down | 13.9 | 172.7 | Really Low | 10:58:42 - 11:28:42 | 6985 |
| Kelowna | 11:13:39 | -15.4 | AT | Down | 13.8 | 172.9 | Really Low | 10:58:39 - 11:28:39 | 6984 |
| Summerland | 11:13:42 | -15.7 | AT | Down | 14.1 | 172.7 | Really Low | 10:58:42 - 11:28:42 | 6980 |
| Penticton | 11:13:43 | -15.6 | AT | Down | 14.2 | 172.8 | Really Low | 10:58:43 - 11:28:43 | 6977 |
| Oliver | 11:13:42 | -15.9 | AT | Down | 14.5 | 172.8 | Really Low | 10:58:42 - 11:28:42 | 6968 |
| Anarchist Mountain Observatory | 11:13:41 | -15.9 | AT | Down | 14.7 | 173.0 | Really Low | 10:58:41 - 11:28:41 | 6962 |
| Tonasket | 11:13:41 | -16.1 | AT | Down | 15.0 | 172.9 | Really Low | 10:58:41 - 11:28:41 | 6954 |
| Okanogan | 11:13:44 | -16.4 | AT | Down | 15.3 | 172.8 | Really Low | 10:58:44 - 11:28:44 | 6947 |
| Brewster | 11:13:45 | -16.7 | AT | Down | 15.6 | 172.6 | Really Low | 10:58:45 - 11:28:45 | 6942 |
| Manson/Chelan | 11:13:48 | -17.0 | AT | Down | 15.7 | 172.2 | Really Low | 10:58:48 - 11:28:48 | 6941 |
| Wenatchee | 11:13:51 | -17.4 | AT | Down | 16.2 | 172.1 | Really Low | 10:58:51 - 11:28:51 | 6930 |
| Ellensburg | 11:13:52 | -17.8 | AT | Down | 16.6 | 171.9 | Really Low | 10:58:52 - 11:28:52 | 6921 |
| Yakima | 11:13:53 | -18.0 | Dark | Down | 17.0 | 171.8 | Really Low | 10:58:53 - 11:28:53 | 6909 |
| Toppenish/White Swan | 11:13:52 | -18.1 | Dark | Down | 17.2 | 172.0 | Really Low | 10:58:52 - 11:28:52 | 6900 |
| Goldendale | 11:13:57 | -18.6 | Dark | Down | 17.7 | 171.6 | Really Low | 10:58:57 - 11:28:57 | 6889 |
| The Dalles | 11:13:58 | -19.0 | Dark | Down | 17.9 | 171.2 | Really Low | 10:58:58 - 11:28:58 | 6886 |
| Maupin | 11:14:01 | -19.2 | Dark | Down | 18.3 | 171.3 | Really Low | 10:59:01 - 11:29:01 | 6871 |
| PNWRO | 11:13:44 | -17.5 | AT | Down | 17.7 | 173.3 | Really Low | 10:58:44 - 11:28:44 | 6870 |
| Sisters | 11:14:05 | -20.0 | Dark | Down | 19.2 | 170.8 | Really Low | 10:59:05 - 11:29:05 | 6849 |
| Bend | 11:14:04 | -20.0 | Dark | Down | 19.4 | 171.0 | Really Low | 10:59:04 - 11:29:04 | 6837 |
| Oregon Observatory | 11:14:06 | -20.2 | Dark | Down | 19.6 | 170.9 | Really Low | 10:59:06 - 11:29:06 | 6833 |
| Sleaford | 11:12:13 | -7.3 | NT | Down | 11.8 | 185.1 | Really Low | 10:57:13 - 11:27:13 | 6833 |
| North Lake | 11:14:02 | -20.3 | Dark | Down | 20.3 | 171.4 | Low | 10:59:02 - 11:29:02 | 6804 |
| Chiloquin | 11:14:12 | -21.3 | Dark | Down | 20.8 | 170.5 | Low | 10:59:12 - 11:29:12 | 6791 |
| Klamath Falls | 11:14:12 | -21.4 | Dark | Down | 21.2 | 170.5 | Low | 10:59:12 - 11:29:12 | 6777 |
| Lakeview | 11:14:00 | -20.7 | Dark | Down | 21.4 | 171.9 | Low | 10:59:00 - 11:29:00 | 6758 |
| Cedarville | 11:14:02 | -21.0 | Dark | Down | 22.0 | 172.0 | Low | 10:59:02 - 11:29:02 | 6730 |
| Fall River/Burney | 11:14:12 | -22.0 | Dark | Down | 22.4 | 170.8 | Low | 10:59:12 - 11:29:12 | 6727 |
| Susanville | 11:14:07 | -21.9 | Dark | Down | 23.1 | 171.5 | Low | 10:59:07 - 11:29:07 | 6692 |
| Greenville | 11:14:09 | -22.3 | Dark | Down | 23.3 | 171.2 | Low | 10:59:09 - 11:29:09 | 6684 |
| Gimple | 11:14:08 | -22.2 | Dark | Down | 23.3 | 171.3 | Low | 10:59:08 - 11:29:08 | 6683 |
| Quincy | 11:14:11 | -22.4 | Dark | Down | 23.5 | 171.2 | Low | 10:59:11 - 11:29:11 | 6675 |
| Portola | 11:14:06 | -22.2 | Dark | Down | 23.7 | 171.6 | Low | 10:59:06 - 11:29:06 | 6664 |
| Reno | 11:14:02 | -22.0 | Dark | Down | 24.0 | 172.2 | Low | 10:59:02 - 11:29:02 | 6644 |
| Carson City | 11:14:02 | -22.2 | Dark | Down | 24.4 | 172.2 | Low | 10:59:02 - 11:29:02 | 6628 |
| Gardnerville | 11:14:02 | -22.3 | Dark | Down | 24.7 | 172.3 | Low | 10:59:02 - 11:29:02 | 6617 |
| Yerington | 11:13:58 | -21.9 | Dark | Down | 24.7 | 172.8 | Low | 10:58:58 - 11:28:58 | 6610 |
| Hawthorne | 11:13:54 | -21.8 | Dark | Down | 25.2 | 173.3 | Low | 10:58:54 - 11:28:54 | 6582 |
| Lee Vining | 11:14:00 | -22.5 | Dark | Down | 25.7 | 172.8 | Low | 10:59:00 - 11:29:00 | 6564 |
| Tonopah | 11:13:44 | -21.2 | Dark | Down | 25.7 | 174.6 | Low | 10:58:44 - 11:28:44 | 6539 |
| Bishop | 11:13:55 | -22.4 | Dark | Down | 26.3 | 173.5 | Low | 10:58:55 - 11:28:55 | 6525 |
| Beatty | 11:13:42 | -21.6 | Dark | Down | 26.9 | 175.0 | Low | 10:58:42 - 11:28:42 | 6477 |
| Indian Springs | 11:13:34 | -21.1 | Dark | Down | 27.3 | 176.1 | Low | 10:58:34 - 11:28:34 | 6443 |
| Dunrhomin | 11:12:08 | -12.3 | AT | Down | 23.5 | 186.1 | Low | 10:57:08 - 11:27:08 | 6405 |
| Henderson | 11:13:29 | -20.9 | Dark | Down | 27.9 | 176.7 | Low | 10:58:29 - 11:28:29 | 6404 |
| CU-SBO | 11:12:08 | -12.5 | AT | Down | 23.8 | 186.1 | Low | 10:57:08 - 11:27:08 | 6396 |
| Wildwood | 11:14:03 | -24.4 | Dark | Down | 29.6 | 173.1 | Low | 10:59:03 - 11:29:03 | 6366 |
| Patrick | 11:13:21 | -20.5 | Dark | Down | 28.6 | 177.8 | Low | 10:58:21 - 11:28:21 | 6352 |
| Laughlin/Bullhead City | 11:13:28 | -21.1 | Dark | Down | 28.8 | 177.1 | Low | 10:58:28 - 11:28:28 | 6352 |
| Kingman/Dolan Springs | 11:13:23 | -20.7 | Dark | Down | 28.8 | 177.6 | Low | 10:58:23 - 11:28:23 | 6344 |
| Mohave Valley | 11:13:27 | -21.2 | Dark | Down | 29.1 | 177.1 | Low | 10:58:27 - 11:28:27 | 6338 |
| Idyllwild | 11:13:48 | -23.3 | Dark | Down | 30.1 | 175.0 | Up | 10:58:48 - 11:28:48 | 6316 |
| Lake Havasu City | 11:13:27 | -21.3 | Dark | Down | 29.5 | 177.4 | Low | 10:58:27 - 11:28:27 | 6312 |
| Parker | 11:13:26 | -21.4 | Dark | Down | 29.8 | 177.4 | Low | 10:58:26 - 11:28:26 | 6293 |
| Calipatria | 11:13:38 | -22.8 | Dark | Down | 30.8 | 176.1 | Up | 10:58:38 - 11:28:38 | 6261 |
| George/Scottsdale | 11:13:07 | -20.0 | Dark | Down | 30.3 | 179.8 | Up | 10:58:07 - 11:28:07 | 6223 |
| Yuma | 11:13:32 | -22.4 | Dark | Down | 31.3 | 177.0 | Up | 10:58:32 - 11:28:32 | 6221 |
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 470593, (2023/04/19 11:16UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 14.84 130 34Ups Sco 17:30:45.8 -37:17:46 2.7 11.35 115 PPM 266967 17:31:44.4 -26:16:11 6.3 0.91 116 PPM 267027 17:34:46.3 -26:44:23 8.4 0.77 116 PPM 267010 17:33:57.7 -25:59:01 10.0 0.37 116 470593 17:35:35.7 -25:59:42 16.2 115 Positions are for J2000
Event circumstances last updated at 2022/10/04 04:09:23 UT
Marc W. Buie, Southwest Research Institute