Event between (523751) 14UU224 and star GA0980:01283211 with event index number of 2363271
Geocentric closest approach at 2028/04/11 04:35:59 UTC
J2000 position of star is 06:04:40.9 +08:52:51
Equinox of date position of star is 06:05:59.8 +08:52:40
Stellar brightness G=11.3,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 131 degrees from the moon.
Moon is 96% illuminated.
Apparent brightness V=22.2
[RECON map]
Object is 31.0 AU from the Sun
and 31.3 AU from the Earth.
Apparent velocity is 17.4
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 111 seconds.
The 1-sigma cross-track error in the shadow position is
1367 km.
The sky-plane scale is
22680.9 km/arcsec.
The object has an absolute magnitude Hv=7.1
Diameter=228.0 km assuming a 5% albedo -- 13.2 sec chord
Diameter=93.1 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is 3:2E
Star training set for 523751, (2028/04/11 04:46UT) Object RA Dec mag sep mel Betelgeuse 05:56:42.2 +07:24:36 0.4 2.78 133 Bellatrix 05:26:39.0 +06:22:22 1.6 10.12 139 PPM 121823 06:04:59.6 +11:40:40 6.0 2.82 132 PPM 149829 06:05:04.9 +08:35:11 8.0 0.41 131 PPM 149881 06:07:11.5 +08:43:50 9.0 0.28 131 523751 06:06:13.8 +08:52:38 11.3 131 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 38.7 km
RECON observability=0.9 and success probability=42.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 04:41:10 | -22.1 | Dark | Up | 17.3 | 262.1 | Really Low | 04:31:25 - 04:50:56 | 2160 |
| Kamloops | 04:40:48 | -16.6 | AT | Down | 26.5 | 250.4 | Low | 04:31:02 - 04:50:33 | 2064 |
| Kelowna | 04:40:51 | -17.5 | AT | Down | 26.2 | 251.6 | Low | 04:31:06 - 04:50:37 | 1976 |
| Peachland | 04:40:52 | -17.4 | AT | Down | 26.4 | 251.4 | Low | 04:31:06 - 04:50:37 | 1967 |
| Summerland | 04:40:52 | -17.6 | AT | Down | 26.4 | 251.5 | Low | 04:31:06 - 04:50:37 | 1951 |
| Penticton | 04:40:52 | -17.7 | AT | Down | 26.3 | 251.6 | Low | 04:31:06 - 04:50:37 | 1944 |
| Oliver | 04:40:53 | -17.9 | AT | Down | 26.5 | 251.8 | Low | 04:31:07 - 04:50:38 | 1908 |
| Anarchist Mountain Observatory | 04:40:54 | -18.1 | Dark | Down | 26.4 | 252.1 | Low | 04:31:08 - 04:50:39 | 1889 |
| Victoria | 04:40:45 | -16.2 | AT | Down | 29.1 | 248.8 | Low | 04:30:59 - 04:50:30 | 1872 |
| Okanogan | 04:40:54 | -18.4 | Dark | Down | 26.7 | 252.2 | Low | 04:31:08 - 04:50:39 | 1825 |
| Brewster | 04:40:54 | -18.4 | Dark | Down | 26.9 | 252.1 | Low | 04:31:08 - 04:50:39 | 1799 |
| Manson/Chelan | 04:40:53 | -18.4 | Dark | Down | 27.2 | 251.9 | Low | 04:31:08 - 04:50:39 | 1780 |
| Wenatchee | 04:40:54 | -18.6 | Dark | Down | 27.5 | 252.0 | Low | 04:31:08 - 04:50:39 | 1733 |
| Ellensburg | 04:40:54 | -18.7 | Dark | Down | 27.8 | 252.0 | Low | 04:31:08 - 04:50:39 | 1692 |
| Yakima | 04:40:54 | -18.9 | Dark | Down | 27.9 | 252.2 | Low | 04:31:09 - 04:50:40 | 1650 |
| Toppenish/White Swan | 04:40:56 | -19.1 | Dark | Down | 27.8 | 252.5 | Low | 04:31:11 - 04:50:42 | 1626 |
| PNWRO | 04:40:59 | -20.2 | Dark | Down | 26.9 | 253.9 | Low | 04:31:14 - 04:50:45 | 1577 |
| The Dalles | 04:40:54 | -19.1 | Dark | Down | 28.6 | 252.2 | Low | 04:31:09 - 04:50:40 | 1552 |
| Maupin | 04:40:56 | -19.4 | Dark | Down | 28.7 | 252.5 | Low | 04:31:10 - 04:50:41 | 1508 |
| Sisters | 04:40:56 | -19.7 | Dark | Down | 29.3 | 252.6 | Low | 04:31:10 - 04:50:41 | 1420 |
| Bend | 04:40:56 | -20.0 | Dark | Down | 29.1 | 252.9 | Low | 04:31:11 - 04:50:42 | 1393 |
| Oregon Observatory | 04:40:56 | -20.0 | Dark | Down | 29.3 | 252.9 | Low | 04:31:11 - 04:50:42 | 1376 |
| Chiloquin | 04:40:57 | -20.5 | Dark | Down | 30.0 | 253.3 | Low | 04:31:12 - 04:50:43 | 1241 |
| Klamath Falls | 04:40:58 | -20.7 | Dark | Down | 30.0 | 253.6 | Low | 04:31:12 - 04:50:43 | 1204 |
| Cedarville | 04:41:03 | -22.1 | Dark | Down | 29.0 | 255.2 | Low | 04:31:17 - 04:50:48 | 1117 |
| Fall River/Burney | 04:41:01 | -21.6 | Dark | Down | 30.0 | 254.5 | Up | 04:31:15 - 04:50:46 | 1076 |
| Greenville | 04:41:03 | -22.4 | Dark | Down | 29.9 | 255.4 | Low | 04:31:17 - 04:50:48 | 975 |
| Gimple | 04:41:03 | -22.5 | Dark | Down | 29.9 | 255.4 | Low | 04:31:18 - 04:50:49 | 974 |
| Quincy | 04:41:03 | -22.5 | Dark | Down | 30.0 | 255.5 | Low | 04:31:17 - 04:50:48 | 953 |
| Portola | 04:41:04 | -22.9 | Dark | Down | 29.7 | 255.9 | Low | 04:31:18 - 04:50:49 | 936 |
| Dunrhomin | 04:41:36 | -31.5 | Dark | Up | 17.9 | 266.5 | Really Low | 04:31:50 - 04:51:21 | 928 |
| Nikitin | 04:41:36 | -31.6 | Dark | Up | 17.9 | 266.5 | Really Low | 04:31:50 - 04:51:21 | 908 |
| Reno | 04:41:06 | -23.5 | Dark | Up | 29.2 | 256.6 | Low | 04:31:20 - 04:50:51 | 902 |
| CU-SBO | 04:41:37 | -31.6 | Dark | Up | 18.0 | 266.5 | Really Low | 04:31:51 - 04:51:22 | 901 |
| Carson City | 04:41:07 | -23.7 | Dark | Up | 29.3 | 256.8 | Low | 04:31:21 - 04:50:52 | 863 |
| Yerington | 04:41:08 | -24.2 | Dark | Up | 28.8 | 257.3 | Low | 04:31:22 - 04:50:53 | 837 |
| Gardnerville | 04:41:06 | -23.9 | Dark | Up | 29.3 | 256.9 | Low | 04:31:21 - 04:50:52 | 836 |
| Hawthorne | 04:41:10 | -24.8 | Dark | Up | 28.5 | 258.0 | Low | 04:31:24 - 04:50:55 | 783 |
| Lee Vining | 04:41:09 | -24.8 | Dark | Up | 29.0 | 257.9 | Low | 04:31:24 - 04:50:55 | 726 |
| Bishop | 04:41:12 | -25.6 | Dark | Up | 28.6 | 258.8 | Low | 04:31:27 - 04:50:58 | 655 |
| Beatty | 04:41:16 | -27.0 | Dark | Up | 27.4 | 260.1 | Low | 04:31:31 - 04:51:02 | 593 |
| Patrick | 04:41:25 | -29.8 | Dark | Up | 25.3 | 262.8 | Low | 04:31:39 - 04:51:10 | 415 |
| Laughlin/Bullhead City | 04:41:23 | -29.5 | Dark | Up | 25.9 | 262.4 | Low | 04:31:37 - 04:51:08 | 391 |
| Lake Havasu City | 04:41:24 | -30.0 | Dark | Up | 25.7 | 262.9 | Low | 04:31:38 - 04:51:09 | 316 |
| Wildwood | 04:41:14 | -27.3 | Dark | Up | 29.3 | 260.4 | Low | 04:31:28 - 04:50:59 | 301 |
| Idyllwild | 04:41:18 | -28.9 | Dark | Up | 27.8 | 261.8 | Low | 04:31:33 - 04:51:04 | 247 |
| George/Scottsdale | 04:41:30 | -32.1 | Dark | Up | 23.8 | 264.8 | Low | 04:31:45 - 04:51:16 | 221 |
| Calipatria | 04:41:22 | -30.0 | Dark | Up | 26.9 | 262.8 | Low | 04:31:37 - 04:51:08 | 173 |
| Yuma | 04:41:24 | -30.9 | Dark | Up | 26.2 | 263.6 | Low | 04:31:39 - 04:51:10 | 120 |
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 523751, (2028/04/11 04:46UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 2.78 133 Bellatrix 05:25:07.8 +06:20:58 1.6 10.12 139 PPM 121823 06:03:24.8 +11:40:51 6.0 2.82 132 PPM 149829 06:03:32.3 +08:35:21 8.0 0.41 131 PPM 149881 06:05:38.7 +08:44:06 9.0 0.28 131 523751 06:04:40.9 +08:52:51 11.3 131 Positions are for J2000
Event circumstances last updated at 2024/01/09 04:45:31 UT
Marc W. Buie, Southwest Research Institute