Event between (447178) 05RO43 and star GA0740:03548498 with event index number of 2290669
Geocentric closest approach at 2025/10/31 10:59:27 UTC
J2000 position of star is 08:01:08.4 -15:06:49
Equinox of date position of star is 08:02:15.5 -15:10:56
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 138 degrees from the moon.
Moon is 68% illuminated.
Apparent brightness V=19.4
[RECON map]
Object is 15.4 AU from the Sun
and 15.4 AU from the Earth.
Apparent velocity is 17.3
km/sec on the sky relative to the star, or,
5.6 arcsec/hr.
The 1-sigma error in the time of the event is 39 seconds.
The 1-sigma cross-track error in the shadow position is
1527 km.
The sky-plane scale is
11154.2 km/arcsec.
The object has an absolute magnitude Hv=7.2
Diameter=208.9 km assuming a 5% albedo -- 12.9 sec chord
Diameter=85.3 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is CENTAURR
Star training set for 447178, (2025/10/31 10:59UT) Object RA Dec mag sep mel Sirius 06:46:17.2 -16:45:08 -1.5 18.34 122 15Rho Pup 08:08:38.7 -24:22:49 2.8 9.31 132 PPM 219722 08:10:39.4 -16:19:35 5.9 2.31 138 PPM 219542 08:02:46.2 -15:19:43 7.6 0.18 138 447178 08:02:19.8 -15:11:12 16.6 138 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 9.0 km
RECON observability=0.7 and success probability=12.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 10:53:42 | -28.5 | Dark | Down | 20.0 | 156.6 | Really Low | 10:49:58 - 10:57:25 | -1392 |
| Dunrhomin | 10:54:15 | -30.1 | Dark | Down | 31.0 | 155.2 | Up | 10:50:32 - 10:57:59 | -1818 |
| Nikitin | 10:54:15 | -30.1 | Dark | Down | 31.2 | 155.1 | Up | 10:50:32 - 10:57:59 | -1827 |
| CU-SBO | 10:54:15 | -30.2 | Dark | Down | 31.2 | 155.0 | Up | 10:50:32 - 10:57:59 | -1835 |
| Kelowna | 10:53:44 | -37.3 | Dark | Down | 17.6 | 143.1 | Really Low | 10:50:01 - 10:57:28 | -2337 |
| Kamloops | 10:53:42 | -37.5 | Dark | Down | 16.6 | 142.5 | Really Low | 10:49:59 - 10:57:26 | -2340 |
| Peachland | 10:53:44 | -37.5 | Dark | Down | 17.6 | 142.8 | Really Low | 10:50:01 - 10:57:28 | -2361 |
| Penticton | 10:53:44 | -37.5 | Dark | Down | 17.8 | 143.0 | Really Low | 10:50:01 - 10:57:28 | -2362 |
| Summerland | 10:53:45 | -37.5 | Dark | Down | 17.7 | 142.9 | Really Low | 10:50:02 - 10:57:29 | -2364 |
| Anarchist Mountain Observatory | 10:53:46 | -37.6 | Dark | Down | 18.3 | 143.1 | Really Low | 10:50:03 - 10:57:30 | -2381 |
| Oliver | 10:53:46 | -37.6 | Dark | Down | 18.1 | 142.9 | Really Low | 10:50:03 - 10:57:30 | -2383 |
| Okanogan | 10:53:49 | -38.0 | Dark | Down | 18.7 | 142.8 | Really Low | 10:50:05 - 10:57:32 | -2433 |
| Brewster | 10:53:49 | -38.2 | Dark | Down | 18.9 | 142.5 | Really Low | 10:50:05 - 10:57:32 | -2461 |
| Manson/Chelan | 10:53:50 | -38.5 | Dark | Down | 18.9 | 142.1 | Really Low | 10:50:06 - 10:57:33 | -2496 |
| PNWRO | 10:53:55 | -38.4 | Dark | Down | 20.9 | 142.9 | Low | 10:50:11 - 10:57:38 | -2527 |
| Wenatchee | 10:53:51 | -38.8 | Dark | Down | 19.2 | 141.9 | Really Low | 10:50:07 - 10:57:34 | -2534 |
| Ellensburg | 10:53:51 | -39.1 | Dark | Down | 19.4 | 141.6 | Really Low | 10:50:07 - 10:57:34 | -2573 |
| Yakima | 10:53:53 | -39.3 | Dark | Down | 19.7 | 141.5 | Really Low | 10:50:10 - 10:57:37 | -2598 |
| Toppenish/White Swan | 10:53:53 | -39.3 | Dark | Down | 20.0 | 141.6 | Really Low | 10:50:10 - 10:57:37 | -2600 |
| George/Scottsdale | 10:54:37 | -36.1 | Dark | Down | 34.1 | 146.2 | Up | 10:50:54 - 10:58:21 | -2626 |
| Victoria | 10:53:48 | -40.2 | Dark | Down | 17.0 | 139.3 | Really Low | 10:50:04 - 10:57:31 | -2649 |
| The Dalles | 10:53:55 | -40.1 | Dark | Down | 20.2 | 140.7 | Low | 10:50:12 - 10:57:39 | -2696 |
| Patrick | 10:54:30 | -37.5 | Dark | Down | 31.8 | 144.8 | Up | 10:50:46 - 10:58:13 | -2713 |
| Maupin | 10:53:57 | -40.2 | Dark | Down | 20.6 | 140.7 | Low | 10:50:13 - 10:57:40 | -2714 |
| Laughlin/Bullhead City | 10:54:31 | -38.1 | Dark | Down | 31.6 | 144.0 | Up | 10:50:47 - 10:58:14 | -2780 |
| Lake Havasu City | 10:54:33 | -38.0 | Dark | Down | 32.3 | 144.0 | Up | 10:50:50 - 10:58:17 | -2791 |
| Bend | 10:53:58 | -40.7 | Dark | Down | 21.4 | 140.2 | Low | 10:50:15 - 10:57:42 | -2795 |
| Sisters | 10:53:59 | -40.8 | Dark | Down | 21.1 | 140.0 | Low | 10:50:16 - 10:57:43 | -2797 |
| Oregon Observatory | 10:54:00 | -40.9 | Dark | Down | 21.5 | 140.1 | Low | 10:50:16 - 10:57:43 | -2813 |
| Cedarville | 10:54:08 | -40.8 | Dark | Down | 23.9 | 140.6 | Low | 10:50:25 - 10:57:52 | -2865 |
| Beatty | 10:54:24 | -39.5 | Dark | Down | 29.2 | 142.5 | Low | 10:50:40 - 10:58:07 | -2865 |
| Yuma | 10:54:41 | -38.5 | Dark | Down | 33.6 | 143.0 | Up | 10:50:57 - 10:58:24 | -2897 |
| Chiloquin | 10:54:05 | -41.7 | Dark | Down | 22.3 | 139.4 | Low | 10:50:21 - 10:57:48 | -2918 |
| Hawthorne | 10:54:18 | -40.6 | Dark | Down | 27.0 | 141.2 | Low | 10:50:35 - 10:58:02 | -2920 |
| Klamath Falls | 10:54:05 | -41.7 | Dark | Down | 22.6 | 139.3 | Low | 10:50:22 - 10:57:49 | -2932 |
| Yerington | 10:54:16 | -40.9 | Dark | Down | 26.4 | 140.8 | Low | 10:50:33 - 10:58:00 | -2933 |
| Calipatria | 10:54:38 | -39.2 | Dark | Down | 32.8 | 142.3 | Up | 10:50:55 - 10:58:22 | -2950 |
| Reno | 10:54:14 | -41.2 | Dark | Down | 25.6 | 140.4 | Low | 10:50:31 - 10:57:58 | -2950 |
| Bishop | 10:54:22 | -40.7 | Dark | Down | 28.0 | 141.1 | Low | 10:50:39 - 10:58:06 | -2963 |
| Carson City | 10:54:16 | -41.3 | Dark | Down | 25.9 | 140.3 | Low | 10:50:32 - 10:57:59 | -2968 |
| Fall River/Burney | 10:54:09 | -41.9 | Dark | Down | 23.7 | 139.4 | Low | 10:50:26 - 10:57:53 | -2975 |
| Gardnerville | 10:54:17 | -41.3 | Dark | Down | 26.1 | 140.3 | Low | 10:50:33 - 10:58:00 | -2978 |
| Portola | 10:54:14 | -41.6 | Dark | Down | 25.1 | 139.9 | Low | 10:50:30 - 10:57:57 | -2981 |
| Lee Vining | 10:54:20 | -41.1 | Dark | Down | 27.2 | 140.6 | Low | 10:50:36 - 10:58:03 | -2985 |
| Gimple | 10:54:13 | -41.8 | Dark | Down | 24.6 | 139.6 | Low | 10:50:29 - 10:57:56 | -2990 |
| Greenville | 10:54:13 | -41.8 | Dark | Down | 24.6 | 139.5 | Low | 10:50:29 - 10:57:56 | -2995 |
| Quincy | 10:54:13 | -41.9 | Dark | Down | 24.7 | 139.5 | Low | 10:50:30 - 10:57:57 | -3006 |
| Idyllwild | 10:54:36 | -40.1 | Dark | Down | 31.7 | 141.4 | Up | 10:50:53 - 10:58:20 | -3015 |
| Wildwood | 10:54:34 | -41.5 | Dark | Down | 30.4 | 139.7 | Up | 10:50:51 - 10:58:18 | -3144 |
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 447178, (2025/10/31 10:59UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:26 -1.5 18.34 122 15Rho Pup 08:07:32.5 -24:18:14 2.8 9.31 132 PPM 219722 08:09:28.5 -16:14:57 5.9 2.31 138 PPM 219542 08:01:34.9 -15:15:20 7.6 0.18 138 447178 08:01:08.4 -15:06:49 16.6 138 Positions are for J2000
Event circumstances last updated at 2024/04/18 03:41:18 UT
Marc W. Buie, Southwest Research Institute