Event between (576257) 12JD68 and star GA0940:05308179 with event index number of 2528409
Geocentric closest approach at 2024/03/09 10:41:15 UTC
J2000 position of star is 17:42:48.5 +05:03:34
Equinox of date position of star is 17:43:53.0 +05:03:02
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 75 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 28.0 AU from the Sun
and 28.0 AU from the Earth.
The TNO is moving 17.8
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 115 seconds.
The 1-sigma cross-track error in the shadow position is
3149 km.
The sky-plane scale is
20335.3 km/arcsec.
The TNO has an absolute magnitude Hv=8.2
Diameter=138.0 km assuming a 5% albedo -- 7.8 sec chord
Diameter=56.4 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 576257, (2024/03/09 10:41UT) Object RA Dec mag sep mel Vega 18:37:45.4 +38:48:26 0.0 35.89 76 60Bet Oph 17:44:40.1 +04:33:32 2.8 0.52 75 62Gam Oph 17:49:06.4 +02:42:00 3.8 2.67 73 PPM 164438 17:43:07.8 +04:21:24 8.0 0.73 75 PPM 164464 17:44:00.0 +04:48:38 9.9 0.24 75 PPM 164474 17:44:38.4 +04:56:19 11.4 0.19 75 576257 17:44:00.0 +05:02:59 15.8 75 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 3.9 km
RECON observability=1.0 and success probability=6.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Klamath Falls | 10:42:24 | -40.2 | Dark | Down | 25.9 | 107.9 | Low | 10:32:17 - 10:52:31 | 2720 |
| Chiloquin | 10:42:24 | -40.0 | Dark | Down | 25.7 | 108.0 | Low | 10:32:17 - 10:52:31 | 2718 |
| Victoria | 10:42:41 | -36.8 | Dark | Down | 22.8 | 109.3 | Low | 10:32:34 - 10:52:48 | 2700 |
| La Pine/Gilchrist | 10:42:24 | -39.1 | Dark | Down | 25.6 | 108.8 | Low | 10:32:17 - 10:52:31 | 2689 |
| Fall River/Burney | 10:41:59 | -40.8 | Dark | Down | 26.4 | 107.6 | Low | 10:31:52 - 10:52:06 | 2687 |
| Sisters | 10:42:24 | -38.7 | Dark | Down | 25.3 | 109.0 | Low | 10:32:17 - 10:52:31 | 2684 |
| Oregon Observatory | 10:42:24 | -38.9 | Dark | Down | 25.6 | 108.9 | Low | 10:32:17 - 10:52:31 | 2684 |
| Bend | 10:42:24 | -38.7 | Dark | Down | 25.6 | 109.1 | Low | 10:32:17 - 10:52:31 | 2677 |
| North Lake | 10:42:24 | -39.0 | Dark | Down | 26.2 | 109.1 | Low | 10:32:17 - 10:52:31 | 2671 |
| Redmond | 10:42:24 | -38.5 | Dark | Down | 25.6 | 109.3 | Low | 10:32:17 - 10:52:31 | 2669 |
| Greenville | 10:41:54 | -41.1 | Dark | Down | 27.0 | 107.5 | Low | 10:31:47 - 10:52:01 | 2669 |
| Quincy | 10:41:52 | -41.2 | Dark | Down | 27.1 | 107.4 | Low | 10:31:45 - 10:51:59 | 2669 |
| Gimple | 10:41:52 | -41.0 | Dark | Down | 27.1 | 107.5 | Low | 10:31:45 - 10:51:59 | 2666 |
| Cedarville | 10:42:24 | -39.7 | Dark | Down | 27.2 | 108.8 | Low | 10:32:17 - 10:52:31 | 2665 |
| Paisley | 10:42:24 | -39.2 | Dark | Down | 26.6 | 109.1 | Low | 10:32:17 - 10:52:31 | 2664 |
| Lakeview | 10:42:24 | -39.4 | Dark | Down | 26.9 | 109.0 | Low | 10:32:17 - 10:52:31 | 2663 |
| Susanville | 10:41:55 | -40.7 | Dark | Down | 27.1 | 107.8 | Low | 10:31:48 - 10:52:02 | 2658 |
| The Dalles | 10:42:26 | -37.7 | Dark | Down | 25.2 | 109.9 | Low | 10:32:19 - 10:52:33 | 2657 |
| Maupin | 10:42:25 | -37.9 | Dark | Down | 25.4 | 109.8 | Low | 10:32:18 - 10:52:32 | 2657 |
| Portola | 10:41:51 | -41.0 | Dark | Down | 27.4 | 107.7 | Low | 10:31:44 - 10:51:58 | 2650 |
| Goldendale | 10:42:27 | -37.3 | Dark | Down | 25.3 | 110.3 | Low | 10:32:20 - 10:52:34 | 2643 |
| CPSLO | 10:41:24 | -43.8 | Dark | Down | 28.5 | 105.1 | Low | 10:31:17 - 10:51:31 | 2631 |
| Yakima | 10:42:33 | -36.7 | Dark | Down | 25.3 | 110.9 | Low | 10:32:26 - 10:52:40 | 2626 |
| Reno | 10:41:51 | -40.7 | Dark | Down | 28.0 | 108.0 | Low | 10:31:44 - 10:51:58 | 2623 |
| Toppenish/White Swan | 10:42:32 | -36.7 | Dark | Down | 25.4 | 110.9 | Low | 10:32:25 - 10:52:39 | 2622 |
| Ellensburg | 10:42:35 | -36.4 | Dark | Down | 25.1 | 111.1 | Low | 10:32:28 - 10:52:42 | 2622 |
| Carson City | 10:41:49 | -40.9 | Dark | Down | 28.1 | 107.9 | Low | 10:31:42 - 10:51:56 | 2621 |
| Gardnerville | 10:41:48 | -41.0 | Dark | Down | 28.2 | 107.8 | Low | 10:31:41 - 10:51:55 | 2618 |
| Wenatchee | 10:42:38 | -36.0 | Dark | Down | 25.1 | 111.5 | Low | 10:32:31 - 10:52:45 | 2609 |
| Manson/Chelan | 10:42:41 | -35.6 | Dark | Down | 25.1 | 111.8 | Low | 10:32:34 - 10:52:48 | 2598 |
| Yerington | 10:41:49 | -40.6 | Dark | Down | 28.7 | 108.2 | Low | 10:31:42 - 10:51:56 | 2593 |
| Lee Vining | 10:41:43 | -41.2 | Dark | Down | 29.0 | 107.7 | Low | 10:31:36 - 10:51:50 | 2587 |
| Brewster | 10:42:42 | -35.3 | Dark | Down | 25.2 | 112.3 | Low | 10:32:35 - 10:52:49 | 2582 |
| Pasco | 10:42:31 | -36.1 | Dark | Down | 26.3 | 112.0 | Low | 10:32:24 - 10:52:38 | 2576 |
| Okanogan | 10:42:43 | -35.0 | Dark | Down | 25.2 | 112.6 | Low | 10:32:36 - 10:52:50 | 2572 |
| PNWRO | 10:42:31 | -36.2 | Dark | Down | 26.5 | 112.0 | Low | 10:32:24 - 10:52:38 | 2570 |
| Hawthorne | 10:41:47 | -40.6 | Dark | Down | 29.2 | 108.4 | Low | 10:31:40 - 10:51:54 | 2569 |
| Tonasket | 10:42:46 | -34.7 | Dark | Down | 25.2 | 112.8 | Low | 10:32:39 - 10:52:53 | 2563 |
| Oliver | 10:42:49 | -34.4 | Dark | Down | 25.0 | 113.0 | Low | 10:32:42 - 10:52:56 | 2561 |
| Peachland | 10:42:51 | -34.2 | Dark | Down | 24.6 | 113.0 | Low | 10:32:44 - 10:52:58 | 2560 |
| Summerland | 10:42:50 | -34.2 | Dark | Down | 24.7 | 113.0 | Low | 10:32:43 - 10:52:57 | 2559 |
| Anarchist Mountain Observatory | 10:42:48 | -34.5 | Dark | Down | 25.1 | 113.0 | Low | 10:32:41 - 10:52:55 | 2557 |
| Penticton | 10:42:51 | -34.2 | Dark | Down | 24.8 | 113.1 | Low | 10:32:44 - 10:52:58 | 2556 |
| Bishop | 10:41:40 | -41.1 | Dark | Down | 29.7 | 107.9 | Low | 10:31:33 - 10:51:47 | 2551 |
| Kelowna | 10:42:53 | -33.9 | Dark | Down | 24.8 | 113.3 | Low | 10:32:46 - 10:53:00 | 2548 |
| Clarence Fulton | 10:42:55 | -33.6 | Dark | Down | 24.7 | 113.6 | Low | 10:32:48 - 10:53:02 | 2537 |
| Wildwood | 10:41:21 | -43.0 | Dark | Down | 30.4 | 105.9 | Up | 10:31:14 - 10:51:28 | 2528 |
| Tonopah | 10:41:45 | -39.9 | Dark | Down | 30.4 | 109.2 | Up | 10:31:38 - 10:51:52 | 2505 |
| Beatty | 10:41:38 | -40.2 | Dark | Down | 31.1 | 108.9 | Up | 10:31:31 - 10:51:45 | 2474 |
| Idyllwild | 10:41:19 | -41.8 | Dark | Down | 32.0 | 107.0 | Up | 10:31:12 - 10:51:26 | 2436 |
| Indian Springs | 10:41:40 | -39.6 | Dark | Down | 32.0 | 109.5 | Up | 10:31:33 - 10:51:47 | 2421 |
| Henderson | 10:41:37 | -39.4 | Dark | Down | 32.7 | 109.7 | Up | 10:31:30 - 10:51:44 | 2382 |
| Calipatria | 10:41:17 | -41.2 | Dark | Down | 33.2 | 107.5 | Up | 10:31:10 - 10:51:24 | 2369 |
| Laughlin/Bullhead City | 10:41:32 | -39.5 | Dark | Down | 33.3 | 109.5 | Up | 10:31:25 - 10:51:39 | 2351 |
| Mohave Valley | 10:41:31 | -39.7 | Dark | Down | 33.4 | 109.3 | Up | 10:31:24 - 10:51:38 | 2347 |
| Blythe | 10:41:22 | -40.3 | Dark | Down | 33.8 | 108.5 | Up | 10:31:15 - 10:51:29 | 2330 |
| Lake Havasu City | 10:41:29 | -39.7 | Dark | Down | 33.7 | 109.3 | Up | 10:31:22 - 10:51:36 | 2330 |
| Kingman/Dolan Springs | 10:41:33 | -39.1 | Dark | Down | 33.7 | 109.9 | Up | 10:31:26 - 10:51:40 | 2327 |
| Parker | 10:41:26 | -39.8 | Dark | Down | 33.8 | 109.0 | Up | 10:31:19 - 10:51:33 | 2323 |
| Patrick | 10:41:35 | -38.9 | Dark | Down | 33.8 | 110.2 | Up | 10:31:28 - 10:51:42 | 2320 |
| Yuma | 10:41:17 | -40.7 | Dark | Down | 34.0 | 107.8 | Up | 10:31:10 - 10:51:24 | 2317 |
| George/Scottsdale | 10:41:28 | -38.2 | Dark | Down | 35.9 | 110.6 | Up | 10:31:21 - 10:51:35 | 2192 |
| Dunrhomin | 10:42:24 | -30.5 | Dark | Down | 38.0 | 121.0 | Up | 10:32:17 - 10:52:31 | 1931 |
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 576257, (2024/03/09 10:41UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 35.89 76 60Bet Oph 17:43:28.3 +04:34:06 2.8 0.52 75 62Gam Oph 17:47:53.5 +02:42:25 3.8 2.67 73 PPM 164438 17:41:55.9 +04:22:01 8.0 0.73 75 PPM 164464 17:42:48.4 +04:49:13 9.9 0.24 75 PPM 164474 17:43:26.8 +04:56:53 11.4 0.19 75 576257 17:42:48.5 +05:03:34 15.8 75 Positions are for J2000
Event circumstances last updated at 2021/10/24 23:57:10 UT
Marc W. Buie, Southwest Research Institute