Event between (609222) 04VV131 and star GA1100:00477750 with event index number of 2789067
Geocentric closest approach at 2024/12/27 10:07:36 UTC
J2000 position of star is 03:49:35.5 +20:22:46
Equinox of date position of star is 03:50:53.0 +20:26:44
Stellar brightness G=13.6,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 174 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=23.3
[RECON map]
TNO is 47.2 AU from the Sun
and 46.4 AU from the Earth.
The TNO is moving 20.2
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 212 seconds.
The 1-sigma cross-track error in the shadow position is
2724 km.
The sky-plane scale is
33660.3 km/arcsec.
The TNO has an absolute magnitude Hv=6.5
Diameter=296.5 km assuming a 5% albedo -- 14.7 sec chord
Diameter=121.0 km assuming a 30% albedo -- 6.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 609222, (2024/12/27 10:08UT) Object RA Dec mag sep mel Aldebaran 04:37:21.4 +16:33:27 0.8 11.65 162 44Zet Per 03:55:42.6 +31:57:21 2.8 11.55 169 PPM 092798 03:45:55.8 +21:00:20 6.0 1.32 175 PPM 092931 03:50:28.0 +21:25:02 8.5 0.97 175 PPM 092978 03:52:28.2 +21:01:05 9.4 0.65 174 PPM 092897 03:48:54.5 +20:39:22 10.6 0.54 175 609222 03:51:02.9 +20:27:14 13.6 174 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
4.2 sigma about the mid-time.
The median site spacing is 26.3 km
RECON observability=0.9 and success probability=0.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 10:03:38 | -45.5 | Dark | Down | 19.6 | 278.3 | Really Low | 09:48:38 - 10:18:38 | 12362 |
| Kamloops | 10:03:48 | -54.0 | Dark | Down | 28.5 | 267.9 | Low | 09:48:48 - 10:18:48 | 11955 |
| Kelowna | 10:03:43 | -54.0 | Dark | Down | 27.9 | 269.0 | Low | 09:48:43 - 10:18:43 | 11896 |
| Peachland | 10:03:45 | -54.2 | Dark | Down | 28.1 | 268.8 | Low | 09:48:45 - 10:18:45 | 11880 |
| Summerland | 10:03:44 | -54.3 | Dark | Down | 28.1 | 269.0 | Low | 09:48:44 - 10:18:44 | 11868 |
| Penticton | 10:03:45 | -54.2 | Dark | Down | 28.0 | 269.1 | Low | 09:48:45 - 10:18:45 | 11864 |
| Oliver | 10:03:42 | -54.4 | Dark | Down | 28.0 | 269.3 | Low | 09:48:42 - 10:18:42 | 11831 |
| Anarchist Mountain Observatory | 10:03:42 | -54.4 | Dark | Down | 27.9 | 269.5 | Low | 09:48:42 - 10:18:42 | 11819 |
| Tonasket | 10:03:41 | -54.7 | Dark | Down | 27.9 | 269.6 | Low | 09:48:41 - 10:18:41 | 11788 |
| Okanogan | 10:03:39 | -54.9 | Dark | Down | 28.0 | 269.7 | Low | 09:48:39 - 10:18:39 | 11754 |
| Brewster | 10:03:40 | -55.2 | Dark | Down | 28.2 | 269.7 | Low | 09:48:40 - 10:18:40 | 11724 |
| Victoria | 10:03:46 | -56.9 | Dark | Down | 30.6 | 266.7 | Up | 09:48:46 - 10:18:46 | 11701 |
| Manson/Chelan | 10:03:40 | -55.5 | Dark | Down | 28.4 | 269.5 | Low | 09:48:40 - 10:18:40 | 11698 |
| Wenatchee | 10:03:39 | -55.9 | Dark | Down | 28.5 | 269.7 | Low | 09:48:39 - 10:18:39 | 11650 |
| Ellensburg | 10:03:37 | -56.2 | Dark | Down | 28.7 | 269.7 | Low | 09:48:37 - 10:18:37 | 11606 |
| Yakima | 10:03:37 | -56.5 | Dark | Down | 28.7 | 269.9 | Low | 09:48:37 - 10:18:37 | 11567 |
| Toppenish/White Swan | 10:03:36 | -56.5 | Dark | Down | 28.6 | 270.2 | Low | 09:48:36 - 10:18:36 | 11549 |
| PNWRO | 10:03:33 | -55.8 | Dark | Down | 27.6 | 271.4 | Low | 09:48:33 - 10:18:33 | 11543 |
| Goldendale | 10:03:35 | -57.1 | Dark | Down | 28.9 | 270.2 | Low | 09:48:35 - 10:18:35 | 11488 |
| The Dalles | 10:03:34 | -57.4 | Dark | Down | 29.2 | 270.0 | Low | 09:48:34 - 10:18:34 | 11459 |
| Maupin | 10:03:35 | -57.6 | Dark | Down | 29.1 | 270.3 | Low | 09:48:35 - 10:18:35 | 11421 |
| Sisters | 10:03:30 | -58.3 | Dark | Down | 29.4 | 270.5 | Low | 09:48:30 - 10:18:30 | 11326 |
| Dunrhomin | 10:02:59 | -48.5 | Dark | Down | 17.0 | 282.6 | Really Low | 09:47:59 - 10:17:59 | 11312 |
| Bend | 10:03:31 | -58.3 | Dark | Down | 29.2 | 270.8 | Low | 09:48:31 - 10:18:31 | 11307 |
| Oregon Observatory | 10:03:31 | -58.5 | Dark | Down | 29.3 | 270.8 | Low | 09:48:31 - 10:18:31 | 11288 |
| CU-SBO | 10:02:58 | -48.6 | Dark | Down | 17.0 | 282.6 | Really Low | 09:47:58 - 10:17:58 | 11285 |
| North Lake | 10:03:28 | -58.5 | Dark | Down | 28.9 | 271.5 | Low | 09:48:28 - 10:18:28 | 11235 |
| Chiloquin | 10:03:28 | -59.4 | Dark | Down | 29.6 | 271.2 | Low | 09:48:28 - 10:18:28 | 11149 |
| Lakeview | 10:03:24 | -58.6 | Dark | Down | 28.5 | 272.4 | Low | 09:48:24 - 10:18:24 | 11141 |
| Klamath Falls | 10:03:27 | -59.5 | Dark | Down | 29.6 | 271.5 | Low | 09:48:27 - 10:18:27 | 11117 |
| Cedarville | 10:03:21 | -58.8 | Dark | Down | 28.4 | 272.9 | Low | 09:48:21 - 10:18:21 | 11079 |
| Fall River/Burney | 10:03:22 | -59.9 | Dark | Down | 29.2 | 272.4 | Low | 09:48:22 - 10:18:22 | 11006 |
| Susanville | 10:03:21 | -59.6 | Dark | Down | 28.7 | 273.2 | Low | 09:48:21 - 10:18:21 | 10958 |
| Gimple | 10:03:20 | -59.9 | Dark | Down | 28.8 | 273.2 | Low | 09:48:20 - 10:18:20 | 10925 |
| Greenville | 10:03:21 | -59.9 | Dark | Down | 28.9 | 273.2 | Low | 09:48:21 - 10:18:21 | 10924 |
| Quincy | 10:03:21 | -60.0 | Dark | Down | 28.9 | 273.3 | Low | 09:48:21 - 10:18:21 | 10903 |
| Portola | 10:03:18 | -59.8 | Dark | Down | 28.5 | 273.6 | Low | 09:48:18 - 10:18:18 | 10901 |
| Reno | 10:03:17 | -59.4 | Dark | Down | 28.0 | 274.2 | Low | 09:48:17 - 10:18:17 | 10887 |
| Carson City | 10:03:17 | -59.5 | Dark | Down | 27.9 | 274.4 | Low | 09:48:17 - 10:18:17 | 10852 |
| Yerington | 10:03:15 | -59.2 | Dark | Down | 27.4 | 274.9 | Low | 09:48:15 - 10:18:15 | 10846 |
| Gardnerville | 10:03:16 | -59.6 | Dark | Down | 27.9 | 274.5 | Low | 09:48:16 - 10:18:16 | 10828 |
| Hawthorne | 10:03:12 | -58.9 | Dark | Down | 27.0 | 275.4 | Low | 09:48:12 - 10:18:12 | 10810 |
| Tonopah | 10:03:10 | -58.0 | Dark | Down | 25.8 | 276.4 | Low | 09:48:10 - 10:18:10 | 10794 |
| Lee Vining | 10:03:13 | -59.5 | Dark | Down | 27.3 | 275.4 | Low | 09:48:13 - 10:18:13 | 10742 |
| Bishop | 10:03:11 | -59.1 | Dark | Down | 26.7 | 276.1 | Low | 09:48:11 - 10:18:11 | 10697 |
| Beatty | 10:03:07 | -58.0 | Dark | Down | 25.4 | 277.2 | Low | 09:48:07 - 10:18:07 | 10687 |
| Indian Springs | 10:03:04 | -57.3 | Dark | Down | 24.5 | 278.0 | Low | 09:48:04 - 10:18:04 | 10679 |
| Henderson | 10:03:01 | -56.9 | Dark | Down | 23.8 | 278.6 | Low | 09:48:01 - 10:18:01 | 10642 |
| Patrick | 10:02:58 | -56.1 | Dark | Down | 22.9 | 279.4 | Low | 09:47:58 - 10:17:58 | 10606 |
| Kingman/Dolan Springs | 10:03:00 | -56.3 | Dark | Down | 23.0 | 279.4 | Low | 09:48:00 - 10:18:00 | 10578 |
| Laughlin/Bullhead City | 10:02:59 | -56.7 | Dark | Down | 23.4 | 279.2 | Low | 09:47:59 - 10:17:59 | 10563 |
| Mohave Valley | 10:03:00 | -56.8 | Dark | Down | 23.3 | 279.3 | Low | 09:48:00 - 10:18:00 | 10535 |
| Lake Havasu City | 10:02:58 | -56.7 | Dark | Down | 23.1 | 279.6 | Low | 09:47:58 - 10:17:58 | 10501 |
| George/Scottsdale | 10:02:52 | -54.8 | Dark | Down | 20.9 | 281.1 | Low | 09:47:52 - 10:17:52 | 10485 |
| Parker | 10:02:57 | -56.7 | Dark | Down | 23.0 | 279.8 | Low | 09:47:57 - 10:17:57 | 10465 |
| Idyllwild | 10:03:00 | -58.7 | Dark | Down | 24.9 | 278.7 | Low | 09:48:00 - 10:18:00 | 10364 |
| Wildwood | 10:03:04 | -60.2 | Dark | Down | 26.5 | 277.6 | Low | 09:48:04 - 10:18:04 | 10356 |
| Calipatria | 10:02:58 | -57.9 | Dark | Down | 23.8 | 279.6 | Low | 09:47:58 - 10:17:58 | 10330 |
| Yuma | 10:02:56 | -57.2 | Dark | Down | 23.0 | 280.2 | Low | 09:47:56 - 10:17:56 | 10308 |
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 609222, (2024/12/27 10:08UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 11.65 162 44Zet Per 03:54:07.9 +31:53:01 2.8 11.55 169 PPM 092798 03:44:28.3 +20:55:42 6.0 1.32 175 PPM 092931 03:49:00.2 +21:20:32 8.5 0.97 175 PPM 092978 03:51:00.5 +20:56:39 9.4 0.65 174 PPM 092897 03:47:27.1 +20:34:49 10.6 0.54 175 609222 03:49:35.5 +20:22:46 13.6 174 Positions are for J2000
Event circumstances last updated at 2022/03/03 00:28:04 UT
Marc W. Buie, Southwest Research Institute