Event between (505624) 14GU53 and star GA0900:04945067 with event index number of 2451480
Geocentric closest approach at 2026/05/20 07:15:03 UTC
J2000 position of star is 17:00:51.2 +00:44:50
Equinox of date position of star is 17:02:06.0 +00:42:46
Stellar brightness G=13.9,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 137 degrees from the moon.
Moon is 17% illuminated.
Apparent brightness V=21.6
[RECON map]
Object is 37.4 AU from the Sun
and 36.5 AU from the Earth.
Apparent velocity is 23.5
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 73 seconds.
The 1-sigma cross-track error in the shadow position is
1380 km.
The sky-plane scale is
26500.4 km/arcsec.
The object has an absolute magnitude Hv=5.8
Diameter=398.1 km assuming a 5% albedo -- 17.3 sec chord
Diameter=162.5 km assuming a 30% albedo -- 7.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 505624, (2026/05/20 07:17UT) Object RA Dec mag sep mel Antares 16:31:01.8 -26:29:17 0.9 28.22 142 60Bet Oph 17:44:46.6 +04:33:29 2.8 11.31 141 PPM 179990 17:06:53.9 -00:55:35 5.4 2.01 139 PPM 179983 17:05:02.6 -00:10:52 7.3 1.14 138 PPM 163395 17:02:34.7 +00:28:10 10.0 0.26 137 PPM 163391 17:02:27.0 +00:49:39 10.4 0.13 137 505624 17:02:11.9 +00:42:37 13.9 137 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 25.6 km
RECON observability=1.0 and success probability=76.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 07:16:39 | -17.8 | AT | Down | 37.3 | 162.3 | Up | 07:10:04 - 07:23:14 | 1437 |
| Kamloops | 07:17:17 | -18.8 | Dark | Up | 34.6 | 144.8 | Up | 07:10:42 - 07:23:52 | 1092 |
| Kelowna | 07:17:16 | -19.7 | Dark | Up | 35.6 | 145.5 | Up | 07:10:41 - 07:23:51 | 1042 |
| Peachland | 07:17:17 | -19.7 | Dark | Up | 35.6 | 145.2 | Up | 07:10:42 - 07:23:52 | 1028 |
| Summerland | 07:17:16 | -19.9 | Dark | Up | 35.7 | 145.2 | Up | 07:10:41 - 07:23:51 | 1017 |
| Penticton | 07:17:17 | -20.0 | Dark | Up | 35.8 | 145.3 | Up | 07:10:42 - 07:23:52 | 1014 |
| Oliver | 07:17:17 | -20.3 | Dark | Up | 36.1 | 145.2 | Up | 07:10:42 - 07:23:52 | 985 |
| Anarchist Mountain Observatory | 07:17:17 | -20.5 | Dark | Up | 36.4 | 145.3 | Up | 07:10:42 - 07:23:52 | 975 |
| Okanogan | 07:17:17 | -21.1 | Dark | Up | 36.8 | 144.8 | Up | 07:10:42 - 07:23:52 | 918 |
| Brewster | 07:17:18 | -21.4 | Dark | Up | 36.9 | 144.4 | Up | 07:10:43 - 07:23:53 | 892 |
| Manson/Chelan | 07:17:19 | -21.5 | Dark | Up | 37.0 | 143.9 | Up | 07:10:44 - 07:23:54 | 869 |
| Victoria | 07:17:28 | -20.5 | Dark | Up | 35.1 | 140.6 | Up | 07:10:53 - 07:24:03 | 869 |
| Wenatchee | 07:17:20 | -22.0 | Dark | Up | 37.3 | 143.5 | Up | 07:10:45 - 07:23:55 | 826 |
| Ellensburg | 07:17:21 | -22.4 | Dark | Up | 37.5 | 143.1 | Up | 07:10:46 - 07:23:56 | 788 |
| Yakima | 07:17:21 | -22.8 | Dark | Up | 37.8 | 142.9 | Up | 07:10:46 - 07:23:56 | 753 |
| Toppenish/White Swan | 07:17:21 | -23.0 | Dark | Up | 38.1 | 143.0 | Up | 07:10:46 - 07:23:56 | 738 |
| PNWRO | 07:17:17 | -23.5 | Dark | Up | 39.0 | 144.5 | Up | 07:10:42 - 07:23:52 | 733 |
| The Dalles | 07:17:24 | -23.6 | Dark | Up | 38.4 | 141.7 | Up | 07:10:49 - 07:23:59 | 658 |
| Maupin | 07:17:24 | -24.1 | Dark | Up | 38.7 | 141.6 | Up | 07:10:49 - 07:23:59 | 624 |
| Sisters | 07:17:26 | -24.9 | Dark | Up | 39.2 | 140.6 | Up | 07:10:51 - 07:24:01 | 539 |
| Bend | 07:17:26 | -25.1 | Dark | Up | 39.5 | 140.8 | Up | 07:10:51 - 07:24:01 | 522 |
| Oregon Observatory | 07:17:26 | -25.3 | Dark | Up | 39.6 | 140.5 | Up | 07:10:51 - 07:24:01 | 505 |
| Dunrhomin | 07:16:36 | -29.6 | Dark | Down | 48.7 | 159.7 | Up | 07:10:01 - 07:23:11 | 504 |
| Nikitin | 07:16:36 | -29.8 | Dark | Down | 48.9 | 159.6 | Up | 07:10:01 - 07:23:11 | 487 |
| CU-SBO | 07:16:36 | -29.8 | Dark | Down | 48.9 | 159.4 | Up | 07:10:01 - 07:23:11 | 480 |
| Chiloquin | 07:17:28 | -26.5 | Dark | Up | 40.4 | 139.3 | Up | 07:10:53 - 07:24:03 | 381 |
| Klamath Falls | 07:17:28 | -26.9 | Dark | Up | 40.7 | 139.2 | Up | 07:10:53 - 07:24:03 | 351 |
| Cedarville | 07:17:24 | -27.8 | Dark | Down | 42.0 | 140.7 | Up | 07:10:49 - 07:23:59 | 318 |
| Fall River/Burney | 07:17:28 | -28.1 | Dark | Down | 41.8 | 139.0 | Up | 07:10:53 - 07:24:03 | 252 |
| Gimple | 07:17:26 | -29.0 | Dark | Down | 42.7 | 139.1 | Up | 07:10:51 - 07:24:01 | 179 |
| Greenville | 07:17:27 | -29.0 | Dark | Down | 42.7 | 139.0 | Up | 07:10:52 - 07:24:02 | 177 |
| Quincy | 07:17:27 | -29.2 | Dark | Down | 42.8 | 138.9 | Up | 07:10:52 - 07:24:02 | 159 |
| Portola | 07:17:25 | -29.4 | Dark | Down | 43.2 | 139.4 | Up | 07:10:50 - 07:24:00 | 156 |
| Reno | 07:17:23 | -29.8 | Dark | Down | 43.7 | 140.0 | Up | 07:10:48 - 07:23:58 | 144 |
| Carson City | 07:17:24 | -30.1 | Dark | Down | 44.0 | 139.8 | Up | 07:10:49 - 07:23:59 | 111 |
| Yerington | 07:17:22 | -30.4 | Dark | Down | 44.4 | 140.4 | Up | 07:10:47 - 07:23:57 | 106 |
| Gardnerville | 07:17:24 | -30.4 | Dark | Down | 44.2 | 139.7 | Up | 07:10:49 - 07:23:59 | 90 |
| Hawthorne | 07:17:20 | -30.9 | Dark | Down | 45.1 | 140.8 | Up | 07:10:45 - 07:23:55 | 73 |
| Lee Vining | 07:17:22 | -31.4 | Dark | Down | 45.3 | 139.8 | Up | 07:10:47 - 07:23:57 | 11 |
| Bishop | 07:17:20 | -32.1 | Dark | Down | 46.1 | 140.3 | Up | 07:10:45 - 07:23:55 | -31 |
| Beatty | 07:17:14 | -32.8 | Dark | Down | 47.2 | 142.0 | Up | 07:10:39 - 07:23:49 | -41 |
| Patrick | 07:17:05 | -34.5 | Dark | Down | 49.8 | 144.8 | Up | 07:10:30 - 07:23:40 | -121 |
| Laughlin/Bullhead City | 07:17:07 | -34.7 | Dark | Down | 49.7 | 143.7 | Up | 07:10:32 - 07:23:42 | -160 |
| Lake Havasu City | 07:17:06 | -35.4 | Dark | Down | 50.3 | 143.5 | Up | 07:10:31 - 07:23:41 | -218 |
| George/Scottsdale | 07:16:58 | -36.3 | Dark | Down | 52.1 | 146.4 | Up | 07:10:23 - 07:23:33 | -238 |
| Idyllwild | 07:17:15 | -35.9 | Dark | Down | 49.7 | 139.8 | Up | 07:10:40 - 07:23:50 | -341 |
| Wildwood | 07:17:21 | -35.3 | Dark | Down | 48.4 | 137.7 | Up | 07:10:46 - 07:23:56 | -347 |
| Calipatria | 07:17:11 | -36.6 | Dark | Down | 50.8 | 140.9 | Up | 07:10:36 - 07:23:46 | -376 |
| Yuma | 07:17:08 | -37.1 | Dark | Down | 51.6 | 141.8 | Up | 07:10:33 - 07:23:43 | -398 |
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 505624, (2026/05/20 07:17UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 28.22 142 60Bet Oph 17:43:28.3 +04:34:06 2.8 11.31 141 PPM 179990 17:05:32.2 -00:53:32 5.4 2.01 139 PPM 179983 17:03:41.4 -00:08:45 7.3 1.14 138 PPM 163395 17:01:13.9 +00:30:23 10.0 0.26 137 PPM 163391 17:01:06.4 +00:51:52 10.4 0.13 137 505624 17:00:51.2 +00:44:50 13.9 137 Positions are for J2000
Event circumstances last updated at 2024/06/19 21:25:03 UT
Marc W. Buie, Southwest Research Institute