Event between (307261) 02MS4 and star GA0840:16257088 with event index number of 2184922
Geocentric closest approach at 2024/05/24 06:56:15 UTC
J2000 position of star is 19:09:49.0 -05:16:35
Equinox of date position of star is 19:11:06.2 -05:14:08
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 42 degrees from the moon.
Moon is 99% illuminated.
Apparent brightness V=20.3
[RECON map]
Object is 46.2 AU from the Sun
and 45.5 AU from the Earth.
Apparent velocity is 17.7
km/sec on the sky relative to the star, or,
1.9 arcsec/hr.
The 1-sigma error in the time of the event is 240 seconds.
The 1-sigma cross-track error in the shadow position is
1874 km.
The sky-plane scale is
32992.9 km/arcsec.
The object has an absolute magnitude Hv=3.6
Diameter=1066.6 km assuming a 5% albedo -- 64.2 sec chord
Diameter=435.5 km assuming a 30% albedo -- 26.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 307261, (2024/05/24 06:57UT) Object RA Dec mag sep mel Antares 16:30:54.4 -26:29:02 0.9 43.70 2 Tarazed 19:47:25.1 +10:40:27 2.7 18.30 59 16Lam Aql 19:07:32.6 -04:50:38 3.4 0.97 41 PPM 202573 19:09:32.4 -05:17:33 8.5 0.40 41 PPM 202599 19:10:58.5 -05:08:46 9.9 0.10 42 307261 19:11:06.9 -05:14:07 15.8 42 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 37.9 km
RECON observability=0.3 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 | 07:00:01 | -17.0 | AT | Up | 20.6 | 130.1 | Low | 06:45:01 - 07:15:01 | 11183 |
| Kamloops | 07:00:37 | -17.3 | AT | Up | 14.0 | 117.0 | Really Low | 06:45:37 - 07:15:37 | 10853 |
| Kelowna | 07:00:38 | -18.3 | Dark | Up | 14.9 | 117.5 | Really Low | 06:45:38 - 07:15:38 | 10798 |
| Peachland | 07:00:38 | -18.3 | Dark | Up | 14.7 | 117.3 | Really Low | 06:45:38 - 07:15:38 | 10784 |
| Summerland | 07:00:39 | -18.5 | Dark | Up | 14.9 | 117.3 | Really Low | 06:45:39 - 07:15:39 | 10773 |
| Penticton | 07:00:39 | -18.6 | Dark | Up | 15.0 | 117.4 | Really Low | 06:45:39 - 07:15:39 | 10769 |
| Oliver | 07:00:40 | -18.9 | Dark | Up | 15.1 | 117.3 | Really Low | 06:45:40 - 07:15:40 | 10740 |
| Anarchist Mountain Observatory | 07:00:40 | -19.1 | Dark | Up | 15.3 | 117.4 | Really Low | 06:45:40 - 07:15:40 | 10728 |
| Okanogan | 07:00:43 | -19.7 | Dark | Up | 15.5 | 117.1 | Really Low | 06:45:43 - 07:15:43 | 10670 |
| Brewster | 07:00:43 | -19.9 | Dark | Up | 15.5 | 116.9 | Really Low | 06:45:43 - 07:15:43 | 10644 |
| Victoria | 07:00:52 | -18.9 | Dark | Up | 13.2 | 114.0 | Really Low | 06:45:52 - 07:15:52 | 10628 |
| Manson/Chelan | 07:00:44 | -20.1 | Dark | Up | 15.4 | 116.5 | Really Low | 06:45:44 - 07:15:44 | 10621 |
| Wenatchee | 07:00:46 | -20.5 | Dark | Up | 15.5 | 116.3 | Really Low | 06:45:46 - 07:15:46 | 10577 |
| Ellensburg | 07:00:49 | -20.9 | Dark | Up | 15.5 | 116.0 | Really Low | 06:45:49 - 07:15:49 | 10538 |
| Yakima | 07:00:49 | -21.3 | Dark | Up | 15.7 | 115.9 | Really Low | 06:45:49 - 07:15:49 | 10502 |
| Toppenish/White Swan | 07:00:50 | -21.5 | Dark | Up | 15.9 | 116.0 | Really Low | 06:45:50 - 07:15:50 | 10486 |
| PNWRO | 07:00:48 | -22.1 | Dark | Up | 17.0 | 117.1 | Really Low | 06:45:48 - 07:15:48 | 10477 |
| The Dalles | 07:00:53 | -22.1 | Dark | Up | 15.8 | 115.1 | Really Low | 06:45:53 - 07:15:53 | 10405 |
| Maupin | 07:00:53 | -22.5 | Dark | Up | 16.0 | 115.1 | Really Low | 06:45:53 - 07:15:53 | 10369 |
| Sisters | 07:00:59 | -23.3 | Dark | Up | 16.1 | 114.5 | Really Low | 06:45:59 - 07:15:59 | 10283 |
| Bend | 07:00:57 | -23.6 | Dark | Up | 16.3 | 114.6 | Really Low | 06:45:57 - 07:15:57 | 10266 |
| Oregon Observatory | 07:00:59 | -23.7 | Dark | Up | 16.3 | 114.5 | Really Low | 06:45:59 - 07:15:59 | 10248 |
| Dunrhomin | 07:00:24 | -28.9 | Dark | Up | 28.5 | 126.6 | Low | 06:45:24 - 07:15:24 | 10211 |
| Nikitin | 07:00:25 | -29.1 | Dark | Up | 28.6 | 126.5 | Low | 06:45:25 - 07:15:25 | 10194 |
| CU-SBO | 07:00:24 | -29.1 | Dark | Up | 28.6 | 126.4 | Low | 06:45:24 - 07:15:24 | 10187 |
| Chiloquin | 07:01:03 | -24.9 | Dark | Up | 16.6 | 113.8 | Really Low | 06:46:03 - 07:16:03 | 10121 |
| Klamath Falls | 07:01:03 | -25.2 | Dark | Up | 16.8 | 113.8 | Really Low | 06:46:03 - 07:16:03 | 10091 |
| Cedarville | 07:01:01 | -26.2 | Dark | Up | 18.2 | 114.8 | Really Low | 06:46:01 - 07:16:01 | 10053 |
| Fall River/Burney | 07:01:05 | -26.5 | Dark | Up | 17.5 | 113.8 | Really Low | 06:46:05 - 07:16:05 | 9987 |
| Gimple | 07:01:08 | -27.4 | Dark | Up | 18.3 | 113.9 | Really Low | 06:46:08 - 07:16:08 | 9911 |
| Greenville | 07:01:06 | -27.4 | Dark | Up | 18.2 | 113.8 | Really Low | 06:46:06 - 07:16:06 | 9910 |
| Quincy | 07:01:07 | -27.6 | Dark | Up | 18.3 | 113.8 | Really Low | 06:46:07 - 07:16:07 | 9890 |
| Portola | 07:01:06 | -27.8 | Dark | Up | 18.7 | 114.1 | Really Low | 06:46:06 - 07:16:06 | 9887 |
| Reno | 07:01:06 | -28.2 | Dark | Up | 19.3 | 114.5 | Really Low | 06:46:06 - 07:16:06 | 9873 |
| Carson City | 07:01:06 | -28.6 | Dark | Up | 19.4 | 114.4 | Really Low | 06:46:06 - 07:16:06 | 9839 |
| Yerington | 07:01:05 | -28.9 | Dark | Up | 19.9 | 114.8 | Really Low | 06:46:05 - 07:16:05 | 9832 |
| Gardnerville | 07:01:06 | -28.8 | Dark | Up | 19.6 | 114.4 | Really Low | 06:46:06 - 07:16:06 | 9817 |
| Hawthorne | 07:01:05 | -29.4 | Dark | Up | 20.5 | 115.1 | Low | 06:46:05 - 07:16:05 | 9797 |
| Lee Vining | 07:01:07 | -29.9 | Dark | Up | 20.4 | 114.5 | Low | 06:46:07 - 07:16:07 | 9734 |
| Bishop | 07:01:06 | -30.6 | Dark | Up | 21.2 | 114.8 | Low | 06:46:06 - 07:16:06 | 9690 |
| Beatty | 07:01:04 | -31.3 | Dark | Up | 22.5 | 115.9 | Low | 06:46:04 - 07:16:04 | 9675 |
| Patrick | 07:00:55 | -33.2 | Dark | Up | 25.3 | 117.4 | Low | 06:45:55 - 07:15:55 | 9587 |
| Laughlin/Bullhead City | 07:01:00 | -33.4 | Dark | Up | 24.9 | 116.8 | Low | 06:46:00 - 07:16:00 | 9549 |
| Lake Havasu City | 07:01:01 | -34.1 | Dark | Up | 25.4 | 116.7 | Low | 06:46:01 - 07:16:01 | 9488 |
| George/Scottsdale | 07:00:55 | -35.1 | Dark | Up | 27.5 | 118.2 | Low | 06:45:55 - 07:15:55 | 9462 |
| Idyllwild | 07:01:09 | -34.5 | Dark | Up | 23.9 | 114.7 | Low | 06:46:09 - 07:16:09 | 9368 |
| Wildwood | 07:01:13 | -33.8 | Dark | Up | 22.4 | 113.5 | Low | 06:46:13 - 07:16:13 | 9367 |
| Calipatria | 07:01:06 | -35.3 | Dark | Up | 25.1 | 115.3 | Low | 06:46:06 - 07:16:06 | 9330 |
| Yuma | 07:01:05 | -35.8 | Dark | Up | 26.0 | 115.7 | Low | 06:46:05 - 07:16:05 | 9305 |
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 307261, (2024/05/24 06:57UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 43.70 2 Tarazed 19:46:15.6 +10:36:48 2.7 18.30 59 16Lam Aql 19:06:14.9 -04:52:59 3.4 0.97 41 PPM 202573 19:08:14.4 -05:19:58 8.5 0.40 41 PPM 202599 19:09:40.7 -05:11:14 9.9 0.10 42 307261 19:09:49.0 -05:16:35 15.8 42 Positions are for J2000
Event circumstances last updated at 2024/03/02 05:45:08 UT
Marc W. Buie, Southwest Research Institute