Event between (309239) 07RW10 and star GA0840:00199040 with event index number of 2186090
Geocentric closest approach at 2024/01/09 06:33:15 UTC
J2000 position of star is 02:30:34.8 -05:24:33
Equinox of date position of star is 02:31:46.8 -05:18:13
Stellar brightness G=13.9,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 130 degrees from the moon.
Moon is 7% illuminated.
Apparent brightness V=21.9
[RECON map]
Object is 31.9 AU from the Sun
and 31.7 AU from the Earth.
Apparent velocity is 8.0
km/sec on the sky relative to the star, or,
1.3 arcsec/hr.
The 1-sigma error in the time of the event is 153 seconds.
The 1-sigma cross-track error in the shadow position is
1208 km.
The sky-plane scale is
22977.1 km/arcsec.
The object has an absolute magnitude Hv=6.7
Diameter=264.2 km assuming a 5% albedo -- 33.9 sec chord
Diameter=107.9 km assuming a 30% albedo -- 13.8 sec chord
Dynamical classification is CENTAURR
Star training set for 309239, (2024/01/09 06:34UT) Object RA Dec mag sep mel Aldebaran 04:37:18.1 +16:33:21 0.8 37.95 167 68Omi Cet 02:20:33.7 -02:52:11 2.0 3.71 129 77 Cet 02:35:53.8 -07:45:21 5.7 2.66 129 PPM 184677 02:30:15.9 -05:20:25 8.3 0.38 129 PPM 184716 02:32:24.1 -05:16:16 9.5 0.16 130 309239 02:31:46.8 -05:18:13 13.9 130 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 4.5 km
RECON observability=0.9 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) |
| Sleaford | 06:34:54 | -59.3 | Dark | Down | 11.5 | 245.3 | Really Low | 06:21:39 - 06:48:10 | 6258 |
| Dunrhomin | 06:32:21 | -70.4 | Dark | Down | 16.1 | 248.1 | Really Low | 06:19:05 - 06:45:36 | 6184 |
| Nikitin | 06:32:18 | -70.6 | Dark | Down | 16.2 | 248.1 | Really Low | 06:19:03 - 06:45:34 | 6180 |
| CU-SBO | 06:32:18 | -70.6 | Dark | Down | 16.3 | 248.1 | Really Low | 06:19:03 - 06:45:34 | 6177 |
| Kelowna | 06:35:18 | -57.2 | Dark | Down | 19.9 | 234.2 | Really Low | 06:22:03 - 06:48:34 | 5962 |
| Anarchist Mountain Observatory | 06:35:08 | -57.9 | Dark | Down | 20.4 | 234.5 | Low | 06:21:53 - 06:48:24 | 5959 |
| Penticton | 06:35:14 | -57.4 | Dark | Down | 20.1 | 234.2 | Low | 06:21:59 - 06:48:30 | 5957 |
| Summerland | 06:35:16 | -57.3 | Dark | Down | 20.2 | 234.1 | Low | 06:22:01 - 06:48:32 | 5954 |
| Oliver | 06:35:09 | -57.7 | Dark | Down | 20.4 | 234.3 | Low | 06:21:54 - 06:48:25 | 5954 |
| Peachland | 06:35:18 | -57.2 | Dark | Down | 20.1 | 234.0 | Low | 06:22:03 - 06:48:34 | 5953 |
| Okanogan | 06:35:01 | -58.2 | Dark | Down | 20.9 | 234.5 | Low | 06:21:45 - 06:48:16 | 5946 |
| Kamloops | 06:35:31 | -56.2 | Dark | Down | 19.8 | 233.2 | Really Low | 06:22:16 - 06:48:47 | 5943 |
| PNWRO | 06:34:45 | -60.3 | Dark | Down | 21.9 | 235.8 | Low | 06:21:29 - 06:48:00 | 5938 |
| Brewster | 06:34:59 | -58.3 | Dark | Down | 21.1 | 234.4 | Low | 06:21:43 - 06:48:14 | 5937 |
| Manson/Chelan | 06:34:59 | -58.3 | Dark | Down | 21.5 | 234.1 | Low | 06:21:43 - 06:48:14 | 5925 |
| Wenatchee | 06:34:53 | -58.6 | Dark | Down | 21.8 | 234.1 | Low | 06:21:38 - 06:48:09 | 5914 |
| Ellensburg | 06:34:50 | -58.8 | Dark | Down | 22.2 | 234.0 | Low | 06:21:34 - 06:48:05 | 5903 |
| Toppenish/White Swan | 06:34:45 | -59.3 | Dark | Down | 22.5 | 234.4 | Low | 06:21:29 - 06:48:00 | 5899 |
| Yakima | 06:34:45 | -59.0 | Dark | Down | 22.5 | 234.1 | Low | 06:21:30 - 06:48:01 | 5897 |
| The Dalles | 06:34:45 | -59.4 | Dark | Down | 23.4 | 233.9 | Low | 06:21:29 - 06:48:00 | 5863 |
| Maupin | 06:34:45 | -59.7 | Dark | Down | 23.6 | 234.2 | Low | 06:21:29 - 06:48:00 | 5861 |
| George/Scottsdale | 06:31:30 | -72.0 | Dark | Down | 23.7 | 245.3 | Low | 06:18:14 - 06:44:45 | 5852 |
| Patrick | 06:32:00 | -69.8 | Dark | Down | 24.4 | 243.3 | Low | 06:18:45 - 06:45:16 | 5848 |
| Bend | 06:34:45 | -60.3 | Dark | Down | 24.4 | 234.4 | Low | 06:21:29 - 06:48:00 | 5837 |
| Victoria | 06:35:21 | -56.4 | Dark | Down | 22.8 | 231.0 | Low | 06:22:05 - 06:48:36 | 5836 |
| Sisters | 06:34:45 | -60.0 | Dark | Down | 24.4 | 234.0 | Low | 06:21:29 - 06:48:00 | 5832 |
| Oregon Observatory | 06:34:45 | -60.4 | Dark | Down | 24.6 | 234.3 | Low | 06:21:29 - 06:48:00 | 5830 |
| Laughlin/Bullhead City | 06:32:00 | -69.4 | Dark | Down | 25.0 | 242.9 | Low | 06:18:45 - 06:45:16 | 5818 |
| Cedarville | 06:33:45 | -62.4 | Dark | Down | 25.3 | 236.1 | Low | 06:20:29 - 06:47:00 | 5817 |
| Lake Havasu City | 06:31:50 | -69.9 | Dark | Down | 25.2 | 243.3 | Low | 06:18:35 - 06:45:06 | 5804 |
| Beatty | 06:32:32 | -67.1 | Dark | Down | 25.7 | 240.6 | Low | 06:19:17 - 06:45:48 | 5804 |
| Chiloquin | 06:34:45 | -60.9 | Dark | Down | 25.6 | 234.4 | Low | 06:21:29 - 06:48:00 | 5794 |
| Klamath Falls | 06:34:45 | -61.2 | Dark | Down | 25.7 | 234.7 | Low | 06:21:29 - 06:48:00 | 5792 |
| Hawthorne | 06:33:01 | -65.0 | Dark | Down | 26.0 | 238.5 | Low | 06:19:46 - 06:46:17 | 5791 |
| Yerington | 06:33:10 | -64.4 | Dark | Down | 26.1 | 237.9 | Low | 06:19:54 - 06:46:25 | 5787 |
| Reno | 06:33:20 | -63.7 | Dark | Down | 26.2 | 237.1 | Low | 06:20:05 - 06:46:36 | 5780 |
| Carson City | 06:33:16 | -63.9 | Dark | Down | 26.4 | 237.3 | Low | 06:20:00 - 06:46:31 | 5771 |
| Gardnerville | 06:33:13 | -64.1 | Dark | Down | 26.5 | 237.4 | Low | 06:19:57 - 06:46:28 | 5766 |
| Bishop | 06:32:45 | -65.8 | Dark | Down | 26.5 | 239.1 | Low | 06:19:30 - 06:46:01 | 5766 |
| Portola | 06:33:27 | -63.2 | Dark | Down | 26.5 | 236.5 | Low | 06:20:12 - 06:46:43 | 5766 |
| Fall River/Burney | 06:33:46 | -61.9 | Dark | Down | 26.3 | 235.2 | Low | 06:20:30 - 06:47:01 | 5766 |
| Gimple | 06:33:33 | -62.8 | Dark | Down | 26.5 | 236.0 | Low | 06:20:17 - 06:46:48 | 5761 |
| Lee Vining | 06:32:58 | -65.0 | Dark | Down | 26.7 | 238.3 | Low | 06:19:42 - 06:46:13 | 5760 |
| Greenville | 06:33:33 | -62.7 | Dark | Down | 26.6 | 236.0 | Low | 06:20:18 - 06:46:49 | 5758 |
| Quincy | 06:33:29 | -62.8 | Dark | Down | 26.7 | 236.0 | Low | 06:20:14 - 06:46:45 | 5753 |
| Yuma | 06:31:31 | -70.6 | Dark | Down | 26.3 | 243.8 | Low | 06:18:16 - 06:44:47 | 5733 |
| Calipatria | 06:31:41 | -69.7 | Dark | Down | 26.7 | 243.0 | Low | 06:18:26 - 06:44:57 | 5720 |
| Idyllwild | 06:31:55 | -68.6 | Dark | Down | 27.3 | 241.9 | Low | 06:18:40 - 06:45:11 | 5704 |
| Wildwood | 06:32:09 | -67.1 | Dark | Down | 28.4 | 240.3 | Low | 06:18:54 - 06:45:25 | 5653 |
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 309239, (2024/01/09 06:34UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 37.95 167 68Omi Cet 02:19:20.8 -02:58:45 2.0 3.71 129 77 Cet 02:34:42.7 -07:51:36 5.7 2.66 129 PPM 184677 02:29:03.8 -05:26:47 8.3 0.38 129 PPM 184716 02:31:12.1 -05:22:36 9.5 0.16 130 309239 02:30:34.8 -05:24:33 13.9 130 Positions are for J2000
Event circumstances last updated at 2024/01/08 05:06:18 UT
Marc W. Buie, Southwest Research Institute