Event between (590218) 11UD63 and star GA1200:01574533 with event index number of 2685462
Geocentric closest approach at 2025/10/27 05:33:03 UTC
J2000 position of star is 05:24:22.3 +30:24:51
Equinox of date position of star is 05:25:54.4 +30:26:04
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 166 degrees from the moon.
Moon is 27% illuminated.
Apparent brightness V=20.6
[RECON map]
Object is 14.8 AU from the Sun
and 14.1 AU from the Earth.
Apparent velocity is 12.5
km/sec on the sky relative to the star, or,
4.4 arcsec/hr.
The 1-sigma error in the time of the event is 119 seconds.
The 1-sigma cross-track error in the shadow position is
542 km.
The sky-plane scale is
10229.1 km/arcsec.
The object has an absolute magnitude Hv=8.7
Diameter=105.2 km assuming a 5% albedo -- 8.6 sec chord
Diameter=42.9 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is CENTAURR
Star training set for 590218, (2025/10/27 05:30UT) Object RA Dec mag sep mel Aldebaran 04:37:24.3 +16:33:33 0.8 17.77 152 Alnath 05:27:55.6 +28:37:37 1.6 1.86 166 PPM 094297 05:22:51.4 +29:35:36 5.7 1.09 165 PPM 094359 05:27:53.7 +30:00:26 8.2 0.59 166 PPM 070301 05:26:14.3 +30:36:27 9.8 0.18 166 590218 05:26:01.7 +30:26:09 16.5 166 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 29.2 km
RECON observability=1.0 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) |
| Kamloops | 05:38:47 | -44.3 | Dark | Down | 28.5 | 75.8 | Low | 05:28:23 - 05:49:11 | 2892 |
| Victoria | 05:39:04 | -44.3 | Dark | Down | 26.1 | 72.7 | Low | 05:28:40 - 05:49:28 | 2840 |
| Peachland | 05:38:53 | -45.2 | Dark | Down | 28.7 | 75.7 | Low | 05:28:29 - 05:49:17 | 2802 |
| Kelowna | 05:38:52 | -45.3 | Dark | Down | 28.9 | 76.0 | Low | 05:28:28 - 05:49:16 | 2800 |
| Summerland | 05:38:53 | -45.4 | Dark | Down | 28.7 | 75.7 | Low | 05:28:29 - 05:49:17 | 2787 |
| Penticton | 05:38:53 | -45.5 | Dark | Down | 28.8 | 75.8 | Low | 05:28:29 - 05:49:17 | 2778 |
| Oliver | 05:38:55 | -45.7 | Dark | Down | 28.7 | 75.6 | Low | 05:28:31 - 05:49:19 | 2751 |
| Anarchist Mountain Observatory | 05:38:57 | -45.9 | Dark | Down | 28.8 | 75.6 | Low | 05:28:33 - 05:49:21 | 2731 |
| Okanogan | 05:39:01 | -46.3 | Dark | Down | 28.5 | 75.1 | Low | 05:28:37 - 05:49:25 | 2689 |
| Brewster | 05:39:03 | -46.4 | Dark | Down | 28.3 | 74.9 | Low | 05:28:39 - 05:49:27 | 2676 |
| Manson/Chelan | 05:39:05 | -46.3 | Dark | Down | 28.0 | 74.5 | Low | 05:28:41 - 05:49:29 | 2673 |
| Wenatchee | 05:39:07 | -46.6 | Dark | Down | 27.8 | 74.2 | Low | 05:28:43 - 05:49:31 | 2642 |
| Ellensburg | 05:39:10 | -46.8 | Dark | Down | 27.5 | 73.8 | Low | 05:28:46 - 05:49:34 | 2618 |
| Yakima | 05:39:13 | -47.0 | Dark | Down | 27.4 | 73.6 | Low | 05:28:49 - 05:49:37 | 2587 |
| Toppenish/White Swan | 05:39:14 | -47.3 | Dark | Down | 27.5 | 73.6 | Low | 05:28:50 - 05:49:38 | 2564 |
| Sleaford | 05:38:14 | -48.4 | Dark | Down | 37.6 | 87.0 | Up | 05:27:50 - 05:48:38 | 2538 |
| The Dalles | 05:39:19 | -47.4 | Dark | Down | 26.7 | 72.8 | Low | 05:28:55 - 05:49:43 | 2532 |
| Maupin | 05:39:21 | -47.7 | Dark | Down | 26.7 | 72.7 | Low | 05:28:57 - 05:49:45 | 2495 |
| PNWRO | 05:39:14 | -48.3 | Dark | Down | 28.4 | 74.4 | Low | 05:28:50 - 05:49:38 | 2478 |
| Sisters | 05:39:27 | -48.0 | Dark | Down | 26.1 | 72.0 | Low | 05:29:03 - 05:49:51 | 2444 |
| Bend | 05:39:28 | -48.3 | Dark | Down | 26.2 | 72.0 | Low | 05:29:04 - 05:49:52 | 2415 |
| Oregon Observatory | 05:39:29 | -48.3 | Dark | Down | 26.1 | 71.8 | Low | 05:29:05 - 05:49:53 | 2406 |
| Chiloquin | 05:39:37 | -48.9 | Dark | Down | 25.4 | 71.0 | Low | 05:29:13 - 05:50:01 | 2316 |
| Klamath Falls | 05:39:39 | -49.1 | Dark | Down | 25.3 | 70.9 | Low | 05:29:15 - 05:50:03 | 2285 |
| Fall River/Burney | 05:39:45 | -50.1 | Dark | Down | 25.2 | 70.6 | Low | 05:29:21 - 05:50:09 | 2172 |
| Cedarville | 05:39:40 | -50.5 | Dark | Down | 26.2 | 71.5 | Low | 05:29:16 - 05:50:04 | 2162 |
| Greenville | 05:39:49 | -50.9 | Dark | Down | 25.3 | 70.5 | Low | 05:29:25 - 05:50:13 | 2077 |
| Gimple | 05:39:49 | -50.9 | Dark | Down | 25.3 | 70.5 | Low | 05:29:25 - 05:50:13 | 2074 |
| Quincy | 05:39:50 | -51.0 | Dark | Down | 25.2 | 70.4 | Low | 05:29:26 - 05:50:14 | 2060 |
| Portola | 05:39:49 | -51.4 | Dark | Down | 25.5 | 70.6 | Low | 05:29:25 - 05:50:13 | 2030 |
| Reno | 05:39:50 | -51.9 | Dark | Down | 25.9 | 70.8 | Low | 05:29:26 - 05:50:14 | 1980 |
| Carson City | 05:39:52 | -52.2 | Dark | Down | 25.8 | 70.6 | Low | 05:29:28 - 05:50:16 | 1948 |
| Gardnerville | 05:39:52 | -52.3 | Dark | Down | 25.7 | 70.6 | Low | 05:29:28 - 05:50:16 | 1925 |
| Yerington | 05:39:52 | -52.7 | Dark | Down | 26.2 | 70.9 | Low | 05:29:28 - 05:50:16 | 1905 |
| Hawthorne | 05:39:53 | -53.3 | Dark | Down | 26.4 | 70.9 | Low | 05:29:29 - 05:50:17 | 1842 |
| Lee Vining | 05:39:57 | -53.3 | Dark | Down | 25.9 | 70.4 | Low | 05:29:33 - 05:50:21 | 1814 |
| Bishop | 05:39:59 | -54.1 | Dark | Down | 26.2 | 70.5 | Low | 05:29:35 - 05:50:23 | 1731 |
| Beatty | 05:39:58 | -55.5 | Dark | Down | 27.3 | 71.1 | Low | 05:29:34 - 05:50:22 | 1620 |
| Dunrhomin | 05:39:14 | -59.1 | Dark | Down | 36.8 | 78.7 | Up | 05:28:50 - 05:49:38 | 1469 |
| Nikitin | 05:39:15 | -59.2 | Dark | Down | 36.7 | 78.6 | Up | 05:28:51 - 05:49:39 | 1453 |
| CU-SBO | 05:39:16 | -59.3 | Dark | Down | 36.7 | 78.5 | Up | 05:28:52 - 05:49:40 | 1450 |
| Wildwood | 05:40:13 | -55.8 | Dark | Down | 25.0 | 69.0 | Low | 05:29:49 - 05:50:37 | 1448 |
| Laughlin/Bullhead City | 05:40:01 | -57.9 | Dark | Down | 28.4 | 71.2 | Low | 05:29:37 - 05:50:25 | 1371 |
| Patrick | 05:39:59 | -58.2 | Dark | Down | 29.1 | 71.6 | Low | 05:29:35 - 05:50:23 | 1364 |
| Idyllwild | 05:40:12 | -57.3 | Dark | Down | 26.3 | 69.6 | Low | 05:29:48 - 05:50:36 | 1333 |
| Lake Havasu City | 05:40:03 | -58.5 | Dark | Down | 28.4 | 70.9 | Low | 05:29:39 - 05:50:27 | 1298 |
| Calipatria | 05:40:12 | -58.5 | Dark | Down | 27.0 | 69.8 | Low | 05:29:48 - 05:50:36 | 1224 |
| Yuma | 05:40:11 | -59.4 | Dark | Down | 27.6 | 69.9 | Low | 05:29:47 - 05:50:35 | 1145 |
| George/Scottsdale | 05:40:01 | -60.6 | Dark | Down | 30.1 | 71.5 | Up | 05:29:37 - 05:50:25 | 1121 |
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 590218, (2025/10/27 05:30UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 17.77 152 Alnath 05:26:17.6 +28:36:23 1.6 1.86 166 PPM 094297 05:21:12.7 +29:34:11 5.7 1.09 165 PPM 094359 05:26:14.6 +29:59:12 8.2 0.59 166 PPM 070301 05:24:34.7 +30:35:09 9.8 0.18 166 590218 05:24:22.3 +30:24:51 16.5 166 Positions are for J2000
Event circumstances last updated at 2023/12/07 04:15:50 UT
Marc W. Buie, Southwest Research Institute