Event between 10XE91 and star GA0980:02390855 with event index number of 2519907
Geocentric closest approach at 2028/12/13 07:16:43 UTC
J2000 position of star is 06:53:02.3 +09:52:48
Equinox of date position of star is 06:54:21.4 +09:50:56
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 120 degrees from the moon.
Moon is 10% illuminated.
Apparent brightness V=23.0
[RECON map]
Object is 42.8 AU from the Sun
and 41.9 AU from the Earth.
Apparent velocity is 23.4
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 324 seconds.
The 1-sigma cross-track error in the shadow position is
2124 km.
The sky-plane scale is
30388.5 km/arcsec.
The object has an absolute magnitude Hv=6.7
Diameter=280.6 km assuming a 5% albedo -- 12.0 sec chord
Diameter=114.5 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is SCATNEAR
Star training set for 10XE91, (2028/12/13 07:17UT) Object RA Dec mag sep mel Betelgeuse 05:56:44.4 +07:24:36 0.4 14.51 133 Alhena 06:39:23.0 +16:22:19 1.9 7.51 126 PPM 151572 06:58:01.4 +09:55:00 5.9 0.84 119 PPM 151521 06:56:46.7 +09:36:40 8.0 0.58 120 PPM 151452 06:54:48.1 +09:45:26 8.6 0.09 120 10XE91 06:54:37.9 +09:50:33 15.8 120 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
2.8 sigma about the mid-time.
The median site spacing is 31.0 km
RECON observability=1.0 and success probability=25.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 07:17:40 | -60.9 | Dark | Down | 45.5 | 155.3 | Up | 07:02:40 - 07:32:40 | -611 |
| Kamloops | 07:18:20 | -61.6 | Dark | Down | 41.7 | 136.4 | Up | 07:03:20 - 07:33:20 | -689 |
| Kelowna | 07:18:19 | -62.5 | Dark | Down | 42.7 | 136.9 | Up | 07:03:19 - 07:33:19 | -761 |
| Peachland | 07:18:20 | -62.6 | Dark | Down | 42.6 | 136.5 | Up | 07:03:20 - 07:33:20 | -769 |
| Summerland | 07:18:20 | -62.7 | Dark | Down | 42.8 | 136.5 | Up | 07:03:20 - 07:33:20 | -782 |
| Penticton | 07:18:20 | -62.8 | Dark | Down | 42.9 | 136.6 | Up | 07:03:20 - 07:33:20 | -789 |
| Oliver | 07:18:21 | -63.1 | Dark | Down | 43.1 | 136.4 | Up | 07:03:21 - 07:33:21 | -819 |
| Anarchist Mountain Observatory | 07:18:21 | -63.3 | Dark | Down | 43.3 | 136.5 | Up | 07:03:21 - 07:33:21 | -834 |
| Victoria | 07:18:32 | -62.8 | Dark | Down | 41.8 | 131.5 | Up | 07:03:32 - 07:33:32 | -858 |
| Okanogan | 07:18:22 | -63.9 | Dark | Down | 43.7 | 135.8 | Up | 07:03:22 - 07:33:22 | -889 |
| Brewster | 07:18:23 | -64.1 | Dark | Down | 43.8 | 135.4 | Up | 07:03:23 - 07:33:23 | -911 |
| Manson/Chelan | 07:18:24 | -64.2 | Dark | Down | 43.8 | 134.8 | Up | 07:03:24 - 07:33:24 | -928 |
| Wenatchee | 07:18:26 | -64.7 | Dark | Down | 44.0 | 134.3 | Up | 07:03:26 - 07:33:26 | -969 |
| Ellensburg | 07:18:27 | -65.0 | Dark | Down | 44.2 | 133.8 | Up | 07:03:27 - 07:33:27 | -1004 |
| Yakima | 07:18:28 | -65.4 | Dark | Down | 44.5 | 133.5 | Up | 07:03:28 - 07:33:28 | -1040 |
| Toppenish/White Swan | 07:18:28 | -65.6 | Dark | Down | 44.7 | 133.5 | Up | 07:03:28 - 07:33:28 | -1060 |
| PNWRO | 07:18:24 | -66.3 | Dark | Down | 45.7 | 135.1 | Up | 07:03:24 - 07:33:24 | -1099 |
| The Dalles | 07:18:31 | -66.1 | Dark | Down | 44.8 | 132.0 | Up | 07:03:31 - 07:33:31 | -1125 |
| Maupin | 07:18:32 | -66.5 | Dark | Down | 45.2 | 131.9 | Up | 07:03:32 - 07:33:32 | -1163 |
| Sisters | 07:18:34 | -67.2 | Dark | Down | 45.5 | 130.6 | Up | 07:03:34 - 07:33:34 | -1240 |
| Bend | 07:18:34 | -67.5 | Dark | Down | 45.8 | 130.7 | Up | 07:03:34 - 07:33:34 | -1263 |
| Oregon Observatory | 07:18:35 | -67.6 | Dark | Down | 45.8 | 130.4 | Up | 07:03:35 - 07:33:35 | -1278 |
| Chiloquin | 07:18:38 | -68.6 | Dark | Down | 46.5 | 128.9 | Up | 07:03:38 - 07:33:38 | -1398 |
| Klamath Falls | 07:18:39 | -69.0 | Dark | Down | 46.7 | 128.7 | Up | 07:03:39 - 07:33:39 | -1430 |
| Cedarville | 07:18:35 | -70.1 | Dark | Down | 48.1 | 130.0 | Up | 07:03:35 - 07:33:35 | -1503 |
| Fall River/Burney | 07:18:39 | -70.1 | Dark | Down | 47.7 | 128.2 | Up | 07:03:39 - 07:33:39 | -1543 |
| Greenville | 07:18:39 | -71.1 | Dark | Down | 48.5 | 127.9 | Up | 07:03:39 - 07:33:39 | -1631 |
| Gimple | 07:18:39 | -71.1 | Dark | Down | 48.6 | 128.0 | Up | 07:03:39 - 07:33:39 | -1631 |
| Quincy | 07:18:39 | -71.3 | Dark | Down | 48.6 | 127.7 | Up | 07:03:39 - 07:33:39 | -1650 |
| Portola | 07:18:38 | -71.6 | Dark | Down | 49.0 | 128.2 | Up | 07:03:38 - 07:33:38 | -1664 |
| Dunrhomin | 07:17:47 | -72.3 | Dark | Down | 56.3 | 149.8 | Up | 07:02:47 - 07:32:47 | -1671 |
| Nikitin | 07:17:48 | -72.4 | Dark | Down | 56.4 | 149.6 | Up | 07:02:48 - 07:32:48 | -1689 |
| Reno | 07:18:37 | -72.0 | Dark | Down | 49.5 | 128.7 | Up | 07:03:37 - 07:33:37 | -1693 |
| CU-SBO | 07:17:48 | -72.5 | Dark | Down | 56.5 | 149.4 | Up | 07:02:48 - 07:32:48 | -1695 |
| Carson City | 07:18:37 | -72.4 | Dark | Down | 49.8 | 128.4 | Up | 07:03:37 - 07:33:37 | -1728 |
| Yerington | 07:18:35 | -72.8 | Dark | Down | 50.3 | 129.0 | Up | 07:03:35 - 07:33:35 | -1750 |
| Gardnerville | 07:18:37 | -72.6 | Dark | Down | 50.0 | 128.2 | Up | 07:03:37 - 07:33:37 | -1752 |
| Hawthorne | 07:18:34 | -73.4 | Dark | Down | 50.9 | 129.2 | Up | 07:03:34 - 07:33:34 | -1797 |
| Lee Vining | 07:18:37 | -73.7 | Dark | Down | 51.0 | 128.1 | Up | 07:03:37 - 07:33:37 | -1850 |
| Bishop | 07:18:35 | -74.5 | Dark | Down | 51.8 | 128.4 | Up | 07:03:35 - 07:33:35 | -1912 |
| Beatty | 07:18:30 | -75.4 | Dark | Down | 53.1 | 129.9 | Up | 07:03:30 - 07:33:30 | -1965 |
| Patrick | 07:18:22 | -77.5 | Dark | Down | 55.8 | 132.2 | Up | 07:03:22 - 07:33:22 | -2124 |
| Laughlin/Bullhead City | 07:18:25 | -77.6 | Dark | Down | 55.5 | 130.9 | Up | 07:03:25 - 07:33:25 | -2147 |
| Lake Havasu City | 07:18:24 | -78.3 | Dark | Down | 56.1 | 130.5 | Up | 07:03:24 - 07:33:24 | -2215 |
| Wildwood | 07:18:39 | -77.3 | Dark | Down | 53.6 | 124.7 | Up | 07:03:39 - 07:33:39 | -2236 |
| Idyllwild | 07:18:33 | -78.3 | Dark | Down | 55.1 | 126.6 | Up | 07:03:33 - 07:33:33 | -2281 |
| George/Scottsdale | 07:18:17 | -79.4 | Dark | Down | 58.1 | 133.1 | Up | 07:03:17 - 07:33:17 | -2302 |
| Calipatria | 07:18:30 | -79.3 | Dark | Down | 56.2 | 127.4 | Up | 07:03:30 - 07:33:30 | -2349 |
| Yuma | 07:18:27 | -80.0 | Dark | Down | 57.1 | 128.0 | Up | 07:03:27 - 07:33:27 | -2397 |
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 10XE91, (2028/12/13 07:17UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 14.51 133 Alhena 06:37:42.8 +16:23:56 1.9 7.51 126 PPM 151572 06:56:25.8 +09:57:23 5.9 0.84 119 PPM 151521 06:55:11.3 +09:39:00 8.0 0.58 120 PPM 151452 06:53:12.6 +09:47:42 8.6 0.09 120 10XE91 06:53:02.3 +09:52:48 15.8 120 Positions are for J2000
Event circumstances last updated at 2023/12/18 04:58:24 UT
Marc W. Buie, Southwest Research Institute