Event between (73480) 02PN34 and star GA1240:00667507 with event index number of 2647139
Geocentric closest approach at 2025/12/19 09:01:04 UTC
J2000 position of star is 03:17:44.9 +34:00:21
Equinox of date position of star is 03:19:16.9 +34:05:39
Stellar brightness G=13.4,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 154 degrees from the moon.
Moon is 1% illuminated.
Apparent brightness V=23.2
[RECON map]
Object is 28.7 AU from the Sun
and 27.9 AU from the Earth.
Apparent velocity is 21.6
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 104 seconds.
The 1-sigma cross-track error in the shadow position is
1633 km.
The sky-plane scale is
20238.4 km/arcsec.
The object has an absolute magnitude Hv=8.6
Diameter=118.6 km assuming a 5% albedo -- 5.3 sec chord
Diameter=48.4 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
Star training set for 73480, (2025/12/19 09:01UT) Object RA Dec mag sep mel Aldebaran 04:37:24.8 +16:33:34 0.8 24.78 165 Algol 03:09:52.1 +41:03:14 2.1 7.20 151 PPM 068330 03:20:21.8 +34:18:57 5.9 0.30 154 PPM 068274 03:17:40.1 +34:46:58 7.2 0.77 154 PPM 068305 03:19:15.7 +34:12:49 9.9 0.12 154 73480 03:19:22.6 +34:05:58 13.4 155 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 34.4 km
RECON observability=1.0 and success probability=19.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 08:57:24 | -53.7 | Dark | Down | 39.7 | 276.7 | Up | 08:48:14 - 09:06:33 | 3680 |
| Kamloops | 08:57:54 | -60.4 | Dark | Down | 48.6 | 267.2 | Up | 08:48:44 - 09:07:03 | 3342 |
| Kelowna | 08:57:51 | -60.8 | Dark | Down | 48.0 | 268.8 | Up | 08:48:41 - 09:07:00 | 3260 |
| Peachland | 08:57:51 | -61.0 | Dark | Down | 48.2 | 268.7 | Up | 08:48:42 - 09:07:01 | 3246 |
| Summerland | 08:57:51 | -61.1 | Dark | Down | 48.2 | 268.9 | Up | 08:48:41 - 09:07:00 | 3230 |
| Penticton | 08:57:51 | -61.2 | Dark | Down | 48.1 | 269.1 | Up | 08:48:41 - 09:07:00 | 3224 |
| Oliver | 08:57:50 | -61.5 | Dark | Down | 48.1 | 269.5 | Up | 08:48:41 - 09:07:00 | 3185 |
| Anarchist Mountain Observatory | 08:57:49 | -61.5 | Dark | Down | 48.0 | 269.8 | Up | 08:48:40 - 09:06:59 | 3168 |
| Okanogan | 08:57:50 | -62.2 | Dark | Down | 48.1 | 270.4 | Up | 08:48:40 - 09:06:59 | 3095 |
| Victoria | 08:58:00 | -63.2 | Dark | Down | 50.6 | 267.3 | Up | 08:48:50 - 09:07:09 | 3087 |
| Brewster | 08:57:50 | -62.5 | Dark | Down | 48.2 | 270.5 | Up | 08:48:41 - 09:07:00 | 3063 |
| Manson/Chelan | 08:57:51 | -62.8 | Dark | Down | 48.5 | 270.5 | Up | 08:48:41 - 09:07:00 | 3038 |
| Wenatchee | 08:57:51 | -63.2 | Dark | Down | 48.6 | 270.9 | Up | 08:48:41 - 09:07:00 | 2984 |
| Ellensburg | 08:57:51 | -63.7 | Dark | Down | 48.7 | 271.2 | Up | 08:48:42 - 09:07:01 | 2937 |
| Yakima | 08:57:51 | -64.0 | Dark | Down | 48.7 | 271.7 | Up | 08:48:42 - 09:07:01 | 2892 |
| Toppenish/White Swan | 08:57:50 | -64.1 | Dark | Down | 48.6 | 272.0 | Up | 08:48:41 - 09:07:00 | 2869 |
| PNWRO | 08:57:46 | -63.9 | Dark | Down | 47.6 | 273.5 | Up | 08:48:37 - 09:06:56 | 2841 |
| The Dalles | 08:57:52 | -65.1 | Dark | Down | 49.1 | 272.4 | Up | 08:48:43 - 09:07:02 | 2777 |
| Maupin | 08:57:52 | -65.4 | Dark | Down | 49.0 | 272.9 | Up | 08:48:42 - 09:07:01 | 2732 |
| Sisters | 08:57:53 | -66.3 | Dark | Down | 49.3 | 273.6 | Up | 08:48:43 - 09:07:02 | 2631 |
| Bend | 08:57:52 | -66.4 | Dark | Down | 49.1 | 274.1 | Up | 08:48:42 - 09:07:01 | 2606 |
| Oregon Observatory | 08:57:52 | -66.6 | Dark | Down | 49.2 | 274.2 | Up | 08:48:43 - 09:07:02 | 2586 |
| Chiloquin | 08:57:53 | -67.9 | Dark | Down | 49.4 | 275.5 | Up | 08:48:43 - 09:07:02 | 2437 |
| Dunrhomin | 08:57:08 | -59.8 | Dark | Down | 36.8 | 286.3 | Up | 08:47:58 - 09:06:17 | 2436 |
| Nikitin | 08:57:08 | -59.9 | Dark | Down | 36.8 | 286.5 | Up | 08:47:58 - 09:06:17 | 2416 |
| CU-SBO | 08:57:08 | -60.0 | Dark | Down | 36.8 | 286.5 | Up | 08:47:58 - 09:06:17 | 2407 |
| Klamath Falls | 08:57:53 | -68.1 | Dark | Down | 49.3 | 275.9 | Up | 08:48:43 - 09:07:02 | 2400 |
| Cedarville | 08:57:48 | -68.0 | Dark | Down | 48.1 | 277.6 | Up | 08:48:38 - 09:06:57 | 2336 |
| Fall River/Burney | 08:57:51 | -68.9 | Dark | Down | 48.9 | 277.5 | Up | 08:48:42 - 09:07:01 | 2272 |
| Gimple | 08:57:49 | -69.4 | Dark | Down | 48.4 | 278.8 | Up | 08:48:40 - 09:06:59 | 2176 |
| Greenville | 08:57:50 | -69.4 | Dark | Down | 48.4 | 278.7 | Up | 08:48:40 - 09:06:59 | 2176 |
| Quincy | 08:57:49 | -69.6 | Dark | Down | 48.4 | 279.0 | Up | 08:48:40 - 09:06:59 | 2153 |
| Portola | 08:57:48 | -69.4 | Dark | Down | 48.0 | 279.3 | Up | 08:48:39 - 09:06:58 | 2143 |
| Reno | 08:57:46 | -69.3 | Dark | Down | 47.5 | 279.9 | Up | 08:48:37 - 09:06:56 | 2120 |
| Carson City | 08:57:46 | -69.5 | Dark | Down | 47.4 | 280.3 | Up | 08:48:36 - 09:06:55 | 2080 |
| Yerington | 08:57:44 | -69.3 | Dark | Down | 46.9 | 280.8 | Up | 08:48:35 - 09:06:54 | 2065 |
| Gardnerville | 08:57:46 | -69.7 | Dark | Down | 47.3 | 280.6 | Up | 08:48:36 - 09:06:55 | 2054 |
| Hawthorne | 08:57:42 | -69.4 | Dark | Down | 46.4 | 281.6 | Up | 08:48:33 - 09:06:52 | 2020 |
| Lee Vining | 08:57:44 | -70.0 | Dark | Down | 46.7 | 281.9 | Up | 08:48:34 - 09:06:53 | 1952 |
| Bishop | 08:57:41 | -70.0 | Dark | Down | 46.0 | 282.9 | Up | 08:48:32 - 09:06:51 | 1894 |
| Beatty | 08:57:37 | -69.2 | Dark | Down | 44.6 | 284.0 | Up | 08:48:27 - 09:06:46 | 1863 |
| Patrick | 08:57:28 | -68.0 | Dark | Down | 42.0 | 286.5 | Up | 08:48:19 - 09:06:38 | 1743 |
| Laughlin/Bullhead City | 08:57:30 | -68.7 | Dark | Down | 42.5 | 286.4 | Up | 08:48:20 - 09:06:39 | 1705 |
| Lake Havasu City | 08:57:29 | -68.8 | Dark | Down | 42.1 | 287.1 | Up | 08:48:20 - 09:06:39 | 1636 |
| George/Scottsdale | 08:57:22 | -67.2 | Dark | Down | 39.9 | 288.6 | Up | 08:48:13 - 09:06:32 | 1594 |
| Wildwood | 08:57:42 | -72.0 | Dark | Down | 45.3 | 286.0 | Up | 08:48:33 - 09:06:52 | 1535 |
| Idyllwild | 08:57:36 | -70.9 | Dark | Down | 43.7 | 287.0 | Up | 08:48:27 - 09:06:46 | 1519 |
| Calipatria | 08:57:33 | -70.3 | Dark | Down | 42.6 | 287.9 | Up | 08:48:23 - 09:06:42 | 1470 |
| Yuma | 08:57:30 | -69.7 | Dark | Down | 41.8 | 288.5 | Up | 08:48:20 - 09:06:39 | 1437 |
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 73480, (2025/12/19 09:01UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 24.78 165 Algol 03:08:10.1 +40:57:20 2.1 7.20 151 PPM 068330 03:18:43.9 +34:13:22 5.9 0.30 154 PPM 068274 03:16:02.0 +34:41:18 7.2 0.77 154 PPM 068305 03:17:37.9 +34:07:11 9.9 0.12 154 73480 03:17:44.9 +34:00:21 13.4 154 Positions are for J2000
Event circumstances last updated at 2024/06/18 02:57:11 UT
Marc W. Buie, Southwest Research Institute