Event between (612953) 05ER318 and star GA0760:04876376 with event index number of 2819137
Geocentric closest approach at 2027/04/22 05:28:47 UTC
J2000 position of star is 12:51:14.9 -13:39:41
Equinox of date position of star is 12:52:25.3 -13:46:58
Stellar brightness G=13.3,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 30 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 30.8 AU from the Sun
and 29.8 AU from the Earth.
The TNO is moving 23.1
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 238 seconds.
The 1-sigma cross-track error in the shadow position is
4185 km.
The sky-plane scale is
21602.2 km/arcsec.
The TNO has an absolute magnitude Hv=8.0
Diameter=150.0 km assuming a 5% albedo -- 6.5 sec chord
Diameter=61.2 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is 4:3E
Star training set for 612953, (2027/04/22 05:29UT) Object RA Dec mag sep mel Spica 13:26:38.1 -11:18:11 1.0 8.66 24 PPM 226546 12:57:19.6 -15:28:28 6.2 2.01 29 PPM 226446 12:52:50.7 -13:38:29 8.1 0.17 30 612953 12:52:40.9 -13:48:34 13.3 30 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
3.8 sigma about the mid-time.
The median site spacing is 13.9 km
RECON observability=1.0 and success probability=10.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 05:30:43 | -22.8 | Dark | Up | 24.0 | 173.6 | Low | 05:15:43 - 05:45:43 | 2400 |
| Kamloops | 05:31:21 | -19.3 | Dark | Up | 23.3 | 158.5 | Low | 05:16:21 - 05:46:21 | 1894 |
| Kelowna | 05:31:19 | -20.3 | Dark | Up | 24.2 | 159.3 | Low | 05:16:19 - 05:46:19 | 1876 |
| Peachland | 05:31:20 | -20.3 | Dark | Up | 24.3 | 159.0 | Low | 05:16:20 - 05:46:20 | 1860 |
| Summerland | 05:31:19 | -20.5 | Dark | Up | 24.4 | 159.0 | Low | 05:16:19 - 05:46:19 | 1854 |
| Penticton | 05:31:19 | -20.5 | Dark | Up | 24.5 | 159.1 | Low | 05:16:19 - 05:46:19 | 1854 |
| Oliver | 05:31:19 | -20.8 | Dark | Up | 24.8 | 159.1 | Low | 05:16:19 - 05:46:19 | 1833 |
| Anarchist Mountain Observatory | 05:31:19 | -21.0 | Dark | Up | 25.0 | 159.2 | Low | 05:16:19 - 05:46:19 | 1830 |
| Tonasket | 05:31:19 | -21.3 | Dark | Up | 25.3 | 159.1 | Low | 05:16:19 - 05:46:19 | 1809 |
| Okanogan | 05:31:20 | -21.5 | Dark | Up | 25.6 | 158.9 | Low | 05:16:20 - 05:46:20 | 1784 |
| Dunrhomin | 05:30:34 | -33.7 | Dark | Up | 35.9 | 173.7 | Up | 05:15:34 - 05:45:34 | 1781 |
| CU-SBO | 05:30:34 | -33.9 | Dark | Up | 36.1 | 173.5 | Up | 05:15:34 - 05:45:34 | 1761 |
| Brewster | 05:31:20 | -21.6 | Dark | Up | 25.8 | 158.7 | Low | 05:16:20 - 05:46:20 | 1761 |
| Manson/Chelan | 05:31:21 | -21.6 | Dark | Up | 25.9 | 158.2 | Low | 05:16:21 - 05:46:21 | 1736 |
| Wenatchee | 05:31:22 | -21.9 | Dark | Up | 26.3 | 158.0 | Low | 05:16:22 - 05:46:22 | 1701 |
| Ellensburg | 05:31:22 | -22.1 | Dark | Up | 26.6 | 157.7 | Low | 05:16:22 - 05:46:22 | 1668 |
| Victoria | 05:31:29 | -19.7 | Dark | Up | 24.5 | 155.0 | Low | 05:16:29 - 05:46:29 | 1667 |
| PNWRO | 05:31:18 | -23.6 | Dark | Up | 28.0 | 159.2 | Low | 05:16:18 - 05:46:18 | 1663 |
| Yakima | 05:31:23 | -22.4 | Dark | Up | 27.0 | 157.6 | Low | 05:16:23 - 05:46:23 | 1642 |
| Toppenish/White Swan | 05:31:22 | -22.7 | Dark | Up | 27.2 | 157.7 | Low | 05:16:22 - 05:46:22 | 1634 |
| Goldendale | 05:31:23 | -22.9 | Dark | Up | 27.6 | 157.2 | Low | 05:16:23 - 05:46:23 | 1585 |
| The Dalles | 05:31:24 | -22.9 | Dark | Up | 27.8 | 156.7 | Low | 05:16:24 - 05:46:24 | 1557 |
| Maupin | 05:31:24 | -23.3 | Dark | Up | 28.2 | 156.7 | Low | 05:16:24 - 05:46:24 | 1534 |
| Sisters | 05:31:25 | -23.7 | Dark | Up | 28.8 | 156.0 | Low | 05:16:25 - 05:46:25 | 1459 |
| Bend | 05:31:25 | -24.0 | Dark | Up | 29.1 | 156.3 | Low | 05:16:25 - 05:46:25 | 1453 |
| Oregon Observatory | 05:31:25 | -24.1 | Dark | Up | 29.2 | 156.1 | Low | 05:16:25 - 05:46:25 | 1436 |
| North Lake | 05:31:24 | -24.8 | Dark | Up | 30.0 | 156.5 | Low | 05:16:24 - 05:46:24 | 1413 |
| Lakeview | 05:31:23 | -25.9 | Dark | Up | 31.1 | 156.9 | Up | 05:16:23 - 05:46:23 | 1361 |
| Chiloquin | 05:31:27 | -24.8 | Dark | Up | 30.3 | 155.3 | Up | 05:16:27 - 05:46:27 | 1332 |
| Cedarville | 05:31:21 | -26.4 | Dark | Up | 31.8 | 156.9 | Up | 05:16:21 - 05:46:21 | 1322 |
| Klamath Falls | 05:31:26 | -25.1 | Dark | Up | 30.7 | 155.3 | Up | 05:16:26 - 05:46:26 | 1311 |
| Fall River/Burney | 05:31:25 | -26.2 | Dark | Up | 31.8 | 155.4 | Up | 05:16:25 - 05:46:25 | 1243 |
| Susanville | 05:31:23 | -27.0 | Dark | Up | 32.7 | 156.1 | Up | 05:16:23 - 05:46:23 | 1226 |
| Gimple | 05:31:23 | -27.1 | Dark | Up | 32.8 | 155.8 | Up | 05:16:23 - 05:46:23 | 1198 |
| Reno | 05:31:20 | -28.1 | Dark | Up | 33.7 | 156.8 | Up | 05:16:20 - 05:46:20 | 1196 |
| Greenville | 05:31:24 | -27.1 | Dark | Up | 32.8 | 155.7 | Up | 05:16:24 - 05:46:24 | 1195 |
| Portola | 05:31:23 | -27.6 | Dark | Up | 33.3 | 156.1 | Up | 05:16:23 - 05:46:23 | 1190 |
| Tonopah | 05:31:12 | -30.5 | Dark | Up | 35.8 | 159.3 | Up | 05:16:12 - 05:46:12 | 1189 |
| Yerington | 05:31:18 | -28.9 | Dark | Up | 34.4 | 157.3 | Up | 05:16:18 - 05:46:18 | 1181 |
| Quincy | 05:31:24 | -27.2 | Dark | Up | 33.0 | 155.6 | Up | 05:16:24 - 05:46:24 | 1181 |
| Carson City | 05:31:20 | -28.4 | Dark | Up | 34.0 | 156.7 | Up | 05:16:20 - 05:46:20 | 1171 |
| Hawthorne | 05:31:16 | -29.5 | Dark | Up | 35.0 | 157.8 | Up | 05:16:16 - 05:46:16 | 1168 |
| Gardnerville | 05:31:20 | -28.6 | Dark | Up | 34.3 | 156.7 | Up | 05:16:20 - 05:46:20 | 1155 |
| Indian Springs | 05:31:06 | -32.5 | Dark | Up | 37.6 | 160.7 | Up | 05:16:06 - 05:46:06 | 1141 |
| Henderson | 05:31:03 | -33.2 | Dark | Up | 38.3 | 161.3 | Up | 05:16:03 - 05:46:03 | 1129 |
| Patrick | 05:31:00 | -34.3 | Dark | Up | 39.2 | 162.5 | Up | 05:16:00 - 05:46:00 | 1127 |
| Beatty | 05:31:10 | -31.7 | Dark | Up | 37.0 | 159.5 | Up | 05:16:10 - 05:46:10 | 1123 |
| Lee Vining | 05:31:18 | -29.7 | Dark | Up | 35.4 | 157.1 | Up | 05:16:18 - 05:46:18 | 1109 |
| Kingman/Dolan Springs | 05:31:00 | -34.3 | Dark | Up | 39.4 | 162.2 | Up | 05:16:00 - 05:46:00 | 1103 |
| Bishop | 05:31:15 | -30.5 | Dark | Up | 36.1 | 157.8 | Up | 05:16:15 - 05:46:15 | 1093 |
| George/Scottsdale | 05:30:51 | -36.6 | Dark | Up | 41.3 | 164.5 | Up | 05:15:51 - 05:45:51 | 1081 |
| Laughlin/Bullhead City | 05:31:02 | -34.1 | Dark | Up | 39.3 | 161.6 | Up | 05:16:02 - 05:46:02 | 1081 |
| Mohave Valley | 05:31:02 | -34.3 | Dark | Up | 39.5 | 161.5 | Up | 05:16:02 - 05:46:02 | 1061 |
| Lake Havasu City | 05:31:00 | -34.8 | Dark | Up | 40.0 | 161.7 | Up | 05:16:00 - 05:46:00 | 1041 |
| Parker | 05:31:00 | -35.1 | Dark | Up | 40.3 | 161.7 | Up | 05:16:00 - 05:46:00 | 1015 |
| Yuma | 05:31:00 | -36.0 | Dark | Up | 41.6 | 160.8 | Up | 05:16:00 - 05:46:00 | 892 |
| Calipatria | 05:31:04 | -35.2 | Dark | Up | 40.9 | 159.9 | Up | 05:16:04 - 05:46:04 | 888 |
| Idyllwild | 05:31:08 | -34.1 | Dark | Up | 40.0 | 158.6 | Up | 05:16:08 - 05:46:08 | 888 |
| Wildwood | 05:31:15 | -32.8 | Dark | Up | 39.1 | 156.5 | Up | 05:16:15 - 05:46:15 | 838 |
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 612953, (2027/04/22 05:29UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 8.66 24 PPM 226546 12:55:53.2 -15:19:37 6.2 2.01 29 PPM 226446 12:51:24.8 -13:29:36 8.1 0.17 30 612953 12:51:14.9 -13:39:41 13.3 30 Positions are for J2000
Event circumstances last updated at 2022/05/06 22:39:42 UT
Marc W. Buie, Southwest Research Institute