Event between (312645) 10EP65 and star GA0780:04516048 with event index number of 2295149
Geocentric closest approach at 2023/03/06 10:34:31 UTC
J2000 position of star is 14:15:07.3 -10:21:01
Equinox of date position of star is 14:16:20.3 -10:27:19
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 61 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=20.8
[RECON map]
TNO is 33.4 AU from the Sun
and 32.7 AU from the Earth.
The TNO is moving 13.9
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 98 seconds.
The 1-sigma cross-track error in the shadow position is
1373 km.
The sky-plane scale is
23744.2 km/arcsec.
The TNO has an absolute magnitude Hv=5.5
Diameter=478.6 km assuming a 5% albedo -- 34.8 sec chord
Diameter=195.4 km assuming a 30% albedo -- 14.2 sec chord
Dynamical classification is 2:1E
Star training set for 312645, (2023/03/06 10:35UT) Object RA Dec mag sep mel Spica 13:26:25.0 -11:16:54 1.0 12.29 51 98Kap Vir 14:14:08.1 -10:22:50 4.2 0.55 61 PPM 197311 14:13:47.8 -10:00:29 7.6 0.77 61 PPM 228508 14:16:03.4 -10:35:26 9.5 0.15 61 312645 14:16:21.7 -10:27:26 16.6 62 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 13.9 km
RECON observability=1.0 and success probability=15.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 10:37:55 | -27.7 | Dark | Up | 27.5 | 184.1 | Low | 10:29:18 - 10:46:33 | -1586 |
| Dunrhomin | 10:37:22 | -32.6 | Dark | Up | 39.2 | 185.5 | Up | 10:28:44 - 10:45:59 | -2140 |
| CU-SBO | 10:37:21 | -32.7 | Dark | Up | 39.5 | 185.4 | Up | 10:28:44 - 10:45:59 | -2159 |
| Kamloops | 10:38:53 | -35.7 | Dark | Up | 28.3 | 168.2 | Low | 10:30:16 - 10:47:31 | -2187 |
| Kelowna | 10:38:49 | -35.8 | Dark | Up | 29.2 | 169.1 | Low | 10:30:11 - 10:47:26 | -2196 |
| Peachland | 10:38:50 | -36.0 | Dark | Up | 29.3 | 168.8 | Low | 10:30:13 - 10:47:28 | -2214 |
| Penticton | 10:38:49 | -36.1 | Dark | Up | 29.5 | 169.0 | Low | 10:30:11 - 10:47:26 | -2218 |
| Summerland | 10:38:49 | -36.1 | Dark | Up | 29.4 | 168.9 | Low | 10:30:12 - 10:47:27 | -2219 |
| Oliver | 10:38:48 | -36.3 | Dark | Up | 29.9 | 168.9 | Low | 10:30:10 - 10:47:25 | -2238 |
| Anarchist Mountain Observatory | 10:38:47 | -36.3 | Dark | Up | 30.0 | 169.1 | Up | 10:30:10 - 10:47:25 | -2239 |
| Tonasket | 10:38:47 | -36.6 | Dark | Up | 30.3 | 169.0 | Up | 10:30:09 - 10:47:24 | -2260 |
| Okanogan | 10:38:47 | -36.9 | Dark | Up | 30.7 | 168.8 | Up | 10:30:10 - 10:47:25 | -2285 |
| Brewster | 10:38:48 | -37.1 | Dark | Up | 30.9 | 168.6 | Up | 10:30:10 - 10:47:25 | -2308 |
| Manson/Chelan | 10:38:49 | -37.5 | Dark | Up | 31.0 | 168.1 | Up | 10:30:11 - 10:47:26 | -2335 |
| Wenatchee | 10:38:49 | -37.9 | Dark | Up | 31.5 | 167.9 | Up | 10:30:12 - 10:47:27 | -2370 |
| PNWRO | 10:38:41 | -38.0 | Dark | Up | 33.1 | 169.3 | Up | 10:30:04 - 10:47:19 | -2393 |
| Ellensburg | 10:38:49 | -38.3 | Dark | Up | 31.9 | 167.6 | Up | 10:30:12 - 10:47:27 | -2403 |
| Yakima | 10:38:49 | -38.5 | Dark | Up | 32.3 | 167.5 | Up | 10:30:12 - 10:47:27 | -2428 |
| Victoria | 10:39:03 | -38.6 | Dark | Up | 29.9 | 164.6 | Low | 10:30:26 - 10:47:41 | -2430 |
| Toppenish/White Swan | 10:38:49 | -38.6 | Dark | Up | 32.5 | 167.7 | Up | 10:30:11 - 10:47:26 | -2434 |
| Goldendale | 10:38:50 | -39.2 | Dark | Up | 33.0 | 167.1 | Up | 10:30:12 - 10:47:27 | -2485 |
| The Dalles | 10:38:51 | -39.5 | Dark | Up | 33.1 | 166.6 | Up | 10:30:13 - 10:47:28 | -2515 |
| Maupin | 10:38:50 | -39.7 | Dark | Up | 33.6 | 166.7 | Up | 10:30:13 - 10:47:28 | -2536 |
| Sisters | 10:38:51 | -40.6 | Dark | Up | 34.3 | 166.0 | Up | 10:30:13 - 10:47:28 | -2612 |
| Bend | 10:38:49 | -40.6 | Dark | Up | 34.6 | 166.2 | Up | 10:30:12 - 10:47:27 | -2616 |
| Oregon Observatory | 10:38:50 | -40.8 | Dark | Up | 34.7 | 166.1 | Up | 10:30:12 - 10:47:27 | -2633 |
| North Lake | 10:38:46 | -40.9 | Dark | Up | 35.5 | 166.6 | Up | 10:30:09 - 10:47:24 | -2650 |
| Lakeview | 10:38:42 | -41.2 | Dark | Up | 36.6 | 167.0 | Up | 10:30:05 - 10:47:20 | -2694 |
| Cedarville | 10:38:40 | -41.5 | Dark | Up | 37.2 | 167.1 | Up | 10:30:03 - 10:47:18 | -2729 |
| Chiloquin | 10:38:50 | -41.8 | Dark | Up | 35.9 | 165.3 | Up | 10:30:12 - 10:47:27 | -2736 |
| Klamath Falls | 10:38:49 | -42.0 | Dark | Up | 36.3 | 165.4 | Up | 10:30:12 - 10:47:27 | -2755 |
| Fall River/Burney | 10:38:46 | -42.5 | Dark | Up | 37.5 | 165.6 | Up | 10:30:08 - 10:47:23 | -2817 |
| Tonopah | 10:38:20 | -41.7 | Dark | Up | 41.1 | 170.2 | Up | 10:29:42 - 10:46:57 | -2824 |
| Susanville | 10:38:41 | -42.5 | Dark | Up | 38.2 | 166.4 | Up | 10:30:03 - 10:47:18 | -2825 |
| Reno | 10:38:35 | -42.5 | Dark | Up | 39.2 | 167.2 | Up | 10:29:58 - 10:47:13 | -2845 |
| Patrick | 10:37:55 | -40.7 | Dark | Up | 44.1 | 174.2 | Up | 10:29:17 - 10:46:32 | -2845 |
| Yerington | 10:38:31 | -42.4 | Dark | Up | 39.9 | 167.9 | Up | 10:29:53 - 10:47:08 | -2852 |
| Indian Springs | 10:38:07 | -41.4 | Dark | Up | 42.7 | 171.9 | Up | 10:29:29 - 10:46:44 | -2852 |
| Gimple | 10:38:41 | -42.8 | Dark | Up | 38.5 | 166.0 | Up | 10:30:03 - 10:47:18 | -2853 |
| Henderson | 10:38:02 | -41.2 | Dark | Up | 43.3 | 172.8 | Up | 10:29:25 - 10:46:40 | -2856 |
| Portola | 10:38:38 | -42.8 | Dark | Up | 38.9 | 166.5 | Up | 10:30:01 - 10:47:16 | -2857 |
| Greenville | 10:38:41 | -42.8 | Dark | Up | 38.5 | 165.9 | Up | 10:30:04 - 10:47:19 | -2857 |
| Hawthorne | 10:38:27 | -42.4 | Dark | Up | 40.4 | 168.5 | Up | 10:29:49 - 10:47:04 | -2859 |
| George/Scottsdale | 10:37:38 | -40.0 | Dark | Up | 45.9 | 176.7 | Up | 10:29:01 - 10:46:16 | -2865 |
| Carson City | 10:38:34 | -42.7 | Dark | Up | 39.6 | 167.2 | Up | 10:29:57 - 10:47:12 | -2868 |
| Kingman/Dolan Springs | 10:37:55 | -41.0 | Dark | Up | 44.3 | 173.9 | Up | 10:29:17 - 10:46:32 | -2869 |
| Quincy | 10:38:41 | -43.0 | Dark | Up | 38.7 | 165.9 | Up | 10:30:04 - 10:47:19 | -2871 |
| Beatty | 10:38:14 | -42.0 | Dark | Up | 42.3 | 170.6 | Up | 10:29:36 - 10:46:51 | -2881 |
| Gardnerville | 10:38:33 | -42.8 | Dark | Up | 39.8 | 167.2 | Up | 10:29:56 - 10:47:11 | -2883 |
| Laughlin/Bullhead City | 10:37:58 | -41.3 | Dark | Up | 44.2 | 173.2 | Up | 10:29:21 - 10:46:36 | -2897 |
| Mohave Valley | 10:37:57 | -41.5 | Dark | Up | 44.5 | 173.2 | Up | 10:29:20 - 10:46:35 | -2915 |
| Lee Vining | 10:38:28 | -43.0 | Dark | Up | 40.9 | 167.8 | Up | 10:29:51 - 10:47:06 | -2920 |
| Bishop | 10:38:23 | -42.8 | Dark | Up | 41.6 | 168.6 | Up | 10:29:46 - 10:47:01 | -2927 |
| Lake Havasu City | 10:37:55 | -41.5 | Dark | Up | 44.9 | 173.4 | Up | 10:29:17 - 10:46:32 | -2931 |
| Parker | 10:37:55 | -41.6 | Dark | Up | 45.3 | 173.4 | Up | 10:29:17 - 10:46:32 | -2954 |
| Yuma | 10:37:52 | -42.5 | Dark | Up | 46.7 | 172.8 | Up | 10:29:15 - 10:46:30 | -3074 |
| Calipatria | 10:37:58 | -43.0 | Dark | Up | 46.2 | 171.6 | Up | 10:29:21 - 10:46:36 | -3088 |
| Idyllwild | 10:38:06 | -43.6 | Dark | Up | 45.4 | 170.1 | Up | 10:29:28 - 10:46:43 | -3102 |
| Wildwood | 10:38:17 | -44.7 | Dark | Up | 44.8 | 167.6 | Up | 10:29:40 - 10:46:55 | -3170 |
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 312645, (2023/03/06 10:35UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 12.29 51 98Kap Vir 14:12:53.8 -10:16:22 4.2 0.55 61 PPM 197311 14:12:33.5 -09:54:01 7.6 0.77 61 PPM 228508 14:14:48.9 -10:29:00 9.5 0.15 61 312645 14:15:07.3 -10:21:01 16.6 61 Positions are for J2000
Event circumstances last updated at 2022/09/29 04:13:42 UT
Marc W. Buie, Southwest Research Institute