Event between (33128) 98BU48 and star GA0980:03785049 with event index number of 2196278
Geocentric closest approach at 2025/05/30 07:46:14 UTC
J2000 position of star is 12:28:36.8 +09:18:00
Equinox of date position of star is 12:29:50.1 +09:10:01
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 70 degrees from the moon.
Moon is 14% illuminated.
Apparent brightness V=22.8
[RECON map]
Object is 37.7 AU from the Sun
and 37.2 AU from the Earth.
Apparent velocity is 9.2
km/sec on the sky relative to the star, or,
1.2 arcsec/hr.
The 1-sigma error in the time of the event is 286 seconds.
The 1-sigma cross-track error in the shadow position is
1624 km.
The sky-plane scale is
27009.1 km/arcsec.
The object has an absolute magnitude Hv=6.9
Diameter=246.6 km assuming a 5% albedo -- 26.7 sec chord
Diameter=100.7 km assuming a 30% albedo -- 10.9 sec chord
Dynamical classification is CENTAURR
Star training set for 33128, (2025/05/30 07:48UT) Object RA Dec mag sep mel Spica 13:26:32.1 -11:17:35 1.0 24.83 91 Vindemiatrix 13:03:26.6 +10:49:23 2.8 8.42 76 20 Vir 12:34:20.0 +10:09:21 6.3 1.48 70 PPM 158903 12:31:51.2 +09:34:31 7.6 0.64 70 PPM 158858 12:28:48.5 +08:59:45 10.0 0.32 69 33128 12:29:54.2 +09:09:35 16.0 70 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
3.1 sigma about the mid-time.
The median site spacing is 30.2 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) |
| Sleaford | 07:38:40 | -15.6 | AT | Down | 19.8 | 259.5 | Really Low | 07:23:40 - 07:53:40 | 7348 |
| Kamloops | 07:39:22 | -17.4 | AT | Down | 28.7 | 247.8 | Low | 07:24:22 - 07:54:22 | 7143 |
| Kelowna | 07:39:15 | -18.2 | Dark | Down | 28.5 | 249.0 | Low | 07:24:15 - 07:54:15 | 7078 |
| Peachland | 07:39:15 | -18.3 | Dark | Down | 28.7 | 248.8 | Low | 07:24:15 - 07:54:15 | 7067 |
| Summerland | 07:39:14 | -18.5 | Dark | Down | 28.7 | 249.0 | Low | 07:24:14 - 07:54:14 | 7054 |
| Penticton | 07:39:12 | -18.5 | Dark | Down | 28.7 | 249.1 | Low | 07:24:12 - 07:54:12 | 7049 |
| Oliver | 07:39:10 | -18.9 | Dark | Down | 28.8 | 249.3 | Low | 07:24:10 - 07:54:10 | 7019 |
| Anarchist Mountain Observatory | 07:39:08 | -19.1 | Dark | Down | 28.7 | 249.5 | Low | 07:24:08 - 07:54:08 | 7005 |
| Okanogan | 07:39:05 | -19.7 | Dark | Down | 29.1 | 249.6 | Low | 07:24:05 - 07:54:05 | 6948 |
| Victoria | 07:39:23 | -19.3 | Dark | Down | 31.4 | 246.2 | Up | 07:24:23 - 07:54:23 | 6943 |
| Brewster | 07:39:02 | -20.0 | Dark | Down | 29.3 | 249.6 | Low | 07:24:02 - 07:54:02 | 6923 |
| Manson/Chelan | 07:39:05 | -20.2 | Dark | Down | 29.6 | 249.4 | Low | 07:24:05 - 07:54:05 | 6903 |
| Wenatchee | 07:39:04 | -20.6 | Dark | Down | 29.9 | 249.5 | Low | 07:24:04 - 07:54:04 | 6860 |
| Ellensburg | 07:39:01 | -21.0 | Dark | Down | 30.2 | 249.5 | Up | 07:24:01 - 07:54:01 | 6822 |
| Yakima | 07:38:57 | -21.4 | Dark | Down | 30.4 | 249.7 | Up | 07:23:57 - 07:53:57 | 6785 |
| Toppenish/White Swan | 07:38:56 | -21.7 | Dark | Down | 30.3 | 250.0 | Up | 07:23:56 - 07:53:56 | 6767 |
| PNWRO | 07:38:47 | -22.1 | Dark | Down | 29.5 | 251.4 | Low | 07:23:47 - 07:53:47 | 6742 |
| The Dalles | 07:38:57 | -22.4 | Dark | Down | 31.1 | 249.7 | Up | 07:23:57 - 07:53:57 | 6693 |
| Maupin | 07:38:53 | -22.8 | Dark | Down | 31.2 | 250.0 | Up | 07:23:53 - 07:53:53 | 6655 |
| Sisters | 07:38:50 | -23.6 | Dark | Down | 31.8 | 250.1 | Up | 07:23:50 - 07:53:50 | 6572 |
| Bend | 07:38:48 | -23.9 | Dark | Down | 31.7 | 250.5 | Up | 07:23:48 - 07:53:48 | 6552 |
| Oregon Observatory | 07:38:48 | -24.1 | Dark | Down | 31.9 | 250.5 | Up | 07:23:48 - 07:53:48 | 6535 |
| Chiloquin | 07:38:43 | -25.3 | Dark | Down | 32.6 | 250.9 | Up | 07:23:43 - 07:53:43 | 6410 |
| Klamath Falls | 07:38:40 | -25.7 | Dark | Down | 32.7 | 251.1 | Up | 07:23:40 - 07:53:40 | 6378 |
| Cedarville | 07:38:27 | -26.5 | Dark | Down | 31.8 | 252.8 | Up | 07:23:27 - 07:53:27 | 6321 |
| Dunrhomin | 07:37:15 | -27.3 | Dark | Down | 21.2 | 264.2 | Low | 07:22:15 - 07:52:15 | 6312 |
| Nikitin | 07:37:15 | -27.4 | Dark | Down | 21.2 | 264.3 | Low | 07:22:15 - 07:52:15 | 6294 |
| CU-SBO | 07:37:15 | -27.5 | Dark | Down | 21.3 | 264.2 | Low | 07:22:15 - 07:52:15 | 6287 |
| Fall River/Burney | 07:38:31 | -26.9 | Dark | Down | 32.8 | 252.1 | Up | 07:23:31 - 07:53:31 | 6268 |
| Gimple | 07:38:25 | -27.8 | Dark | Down | 32.7 | 253.1 | Up | 07:23:25 - 07:53:25 | 6184 |
| Greenville | 07:38:24 | -27.8 | Dark | Down | 32.8 | 253.0 | Up | 07:23:24 - 07:53:24 | 6184 |
| Quincy | 07:38:24 | -28.0 | Dark | Down | 32.8 | 253.2 | Up | 07:23:24 - 07:53:24 | 6164 |
| Portola | 07:38:22 | -28.2 | Dark | Down | 32.5 | 253.6 | Up | 07:23:22 - 07:53:22 | 6155 |
| Reno | 07:38:15 | -28.5 | Dark | Down | 32.1 | 254.3 | Up | 07:23:15 - 07:53:15 | 6133 |
| Carson City | 07:38:14 | -28.8 | Dark | Down | 32.2 | 254.5 | Up | 07:23:14 - 07:53:14 | 6098 |
| Yerington | 07:38:08 | -29.1 | Dark | Down | 31.8 | 255.1 | Up | 07:23:08 - 07:53:08 | 6083 |
| Gardnerville | 07:38:12 | -29.1 | Dark | Down | 32.3 | 254.7 | Up | 07:23:12 - 07:53:12 | 6075 |
| Hawthorne | 07:38:04 | -29.6 | Dark | Down | 31.6 | 255.7 | Up | 07:23:04 - 07:53:04 | 6041 |
| Lee Vining | 07:38:03 | -30.1 | Dark | Down | 32.1 | 255.7 | Up | 07:23:03 - 07:53:03 | 5983 |
| Bishop | 07:37:59 | -30.7 | Dark | Down | 31.7 | 256.6 | Up | 07:22:59 - 07:52:59 | 5928 |
| Beatty | 07:37:47 | -31.3 | Dark | Down | 30.5 | 258.0 | Up | 07:22:47 - 07:52:47 | 5893 |
| Patrick | 07:37:25 | -32.8 | Dark | Down | 28.6 | 260.7 | Low | 07:22:25 - 07:52:25 | 5766 |
| Laughlin/Bullhead City | 07:37:27 | -33.0 | Dark | Down | 29.2 | 260.4 | Low | 07:22:27 - 07:52:27 | 5736 |
| Lake Havasu City | 07:37:22 | -33.7 | Dark | Down | 29.1 | 260.9 | Low | 07:22:22 - 07:52:22 | 5670 |
| George/Scottsdale | 07:37:07 | -34.4 | Dark | Down | 27.3 | 262.8 | Low | 07:22:07 - 07:52:07 | 5612 |
| Wildwood | 07:37:43 | -34.0 | Dark | Down | 32.6 | 258.4 | Up | 07:22:43 - 07:52:43 | 5599 |
| Idyllwild | 07:37:32 | -34.4 | Dark | Down | 31.2 | 259.8 | Up | 07:22:32 - 07:52:32 | 5576 |
| Calipatria | 07:37:22 | -35.0 | Dark | Down | 30.3 | 260.9 | Up | 07:22:22 - 07:52:22 | 5522 |
| Yuma | 07:37:18 | -35.5 | Dark | Down | 29.7 | 261.7 | Low | 07:22:18 - 07:52:18 | 5485 |
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 33128, (2025/05/30 07:48UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 24.83 91 Vindemiatrix 13:02:10.2 +10:57:33 2.8 8.42 76 20 Vir 12:33:02.8 +10:17:44 6.3 1.48 70 PPM 158903 12:30:33.9 +09:42:55 7.6 0.64 70 PPM 158858 12:27:31.0 +09:08:11 10.0 0.32 69 33128 12:28:36.8 +09:18:00 16.0 70 Positions are for J2000
Event circumstances last updated at 2024/01/29 04:25:19 UT
Marc W. Buie, Southwest Research Institute