Event between 12VR128 and star GA1200:00384197 with event index number of 2034676
Geocentric closest approach at 2025/12/20 06:36:24 UTC
J2000 position of star is 02:21:13.5 +31:17:56
Equinox of date position of star is 02:22:38.5 +31:24:27
Stellar brightness G=14.3,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 132 degrees from the moon.
Moon is 0% illuminated.
Apparent brightness V=21.4
[RECON map]
Object is 46.8 AU from the Sun
and 46.1 AU from the Earth.
Apparent velocity is 18.6
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 108 seconds.
The 1-sigma cross-track error in the shadow position is
1912 km.
The sky-plane scale is
33437.2 km/arcsec.
The object has an absolute magnitude Hv=4.6
Diameter=701.5 km assuming a 5% albedo -- 38.2 sec chord
Diameter=286.4 km assuming a 30% albedo -- 15.6 sec chord
Dynamical classification is SCATEXTD
Star training set for 12VR128, (2025/12/20 06:37UT) Object RA Dec mag sep mel Aldebaran 04:37:24.8 +16:33:34 0.8 33.96 157 Hamal 02:08:38.6 +23:35:03 2.0 8.43 127 5 Tri 02:12:56.6 +31:38:51 6.2 2.10 130 PPM 067143 02:17:54.0 +31:09:48 7.9 1.07 131 PPM 067262 02:24:04.9 +31:39:12 9.2 0.37 132 PPM 067246 02:23:12.3 +31:17:02 10.4 0.16 132 12VR128 02:22:45.6 +31:25:00 14.3 132 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 28.7 km
RECON observability=1.0 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) |
| Kamloops | 06:33:35 | -58.1 | Dark | Down | 59.5 | 242.7 | Up | 06:24:07 - 06:43:02 | -51 |
| Kelowna | 06:33:33 | -59.1 | Dark | Down | 59.4 | 245.1 | Up | 06:24:06 - 06:43:01 | -157 |
| Sleaford | 06:32:50 | -60.8 | Dark | Down | 50.7 | 256.5 | Up | 06:23:23 - 06:42:18 | -160 |
| Peachland | 06:33:34 | -59.1 | Dark | Down | 59.6 | 244.9 | Up | 06:24:07 - 06:43:02 | -162 |
| Summerland | 06:33:34 | -59.2 | Dark | Down | 59.6 | 245.2 | Up | 06:24:07 - 06:43:02 | -180 |
| Penticton | 06:33:34 | -59.3 | Dark | Down | 59.6 | 245.5 | Up | 06:24:06 - 06:43:01 | -189 |
| Victoria | 06:33:48 | -58.4 | Dark | Down | 62.3 | 242.3 | Up | 06:24:21 - 06:43:16 | -194 |
| Oliver | 06:33:34 | -59.6 | Dark | Down | 59.7 | 246.0 | Up | 06:24:07 - 06:43:02 | -226 |
| Anarchist Mountain Observatory | 06:33:34 | -59.8 | Dark | Down | 59.7 | 246.5 | Up | 06:24:07 - 06:43:02 | -249 |
| Okanogan | 06:33:36 | -60.2 | Dark | Down | 60.1 | 247.3 | Up | 06:24:08 - 06:43:03 | -311 |
| Brewster | 06:33:37 | -60.3 | Dark | Down | 60.3 | 247.5 | Up | 06:24:09 - 06:43:04 | -334 |
| Manson/Chelan | 06:33:38 | -60.3 | Dark | Down | 60.6 | 247.4 | Up | 06:24:11 - 06:43:06 | -347 |
| Wenatchee | 06:33:40 | -60.6 | Dark | Down | 60.9 | 248.0 | Up | 06:24:12 - 06:43:07 | -392 |
| Ellensburg | 06:33:41 | -60.8 | Dark | Down | 61.2 | 248.4 | Up | 06:24:14 - 06:43:09 | -430 |
| Yakima | 06:33:42 | -61.1 | Dark | Down | 61.3 | 249.1 | Up | 06:24:15 - 06:43:10 | -472 |
| Toppenish/White Swan | 06:33:42 | -61.3 | Dark | Down | 61.3 | 249.7 | Up | 06:24:14 - 06:43:09 | -499 |
| The Dalles | 06:33:46 | -61.5 | Dark | Down | 62.1 | 250.1 | Up | 06:24:18 - 06:43:13 | -558 |
| PNWRO | 06:33:37 | -62.3 | Dark | Down | 60.4 | 252.0 | Up | 06:24:10 - 06:43:05 | -576 |
| Maupin | 06:33:47 | -61.8 | Dark | Down | 62.1 | 251.0 | Up | 06:24:19 - 06:43:14 | -605 |
| Sisters | 06:33:50 | -62.2 | Dark | Down | 62.7 | 252.0 | Up | 06:24:22 - 06:43:17 | -682 |
| Bend | 06:33:49 | -62.5 | Dark | Down | 62.6 | 252.8 | Up | 06:24:22 - 06:43:17 | -715 |
| Oregon Observatory | 06:33:50 | -62.5 | Dark | Down | 62.8 | 252.9 | Up | 06:24:23 - 06:43:18 | -729 |
| Chiloquin | 06:33:54 | -63.1 | Dark | Down | 63.4 | 255.0 | Up | 06:24:26 - 06:43:21 | -853 |
| Klamath Falls | 06:33:55 | -63.4 | Dark | Down | 63.4 | 255.7 | Up | 06:24:27 - 06:43:22 | -891 |
| Cedarville | 06:33:50 | -64.7 | Dark | Down | 62.4 | 258.7 | Up | 06:24:23 - 06:43:18 | -1010 |
| Fall River/Burney | 06:33:56 | -64.3 | Dark | Down | 63.4 | 258.4 | Up | 06:24:28 - 06:43:23 | -1025 |
| Greenville | 06:33:56 | -65.1 | Dark | Down | 63.2 | 260.6 | Up | 06:24:28 - 06:43:23 | -1132 |
| Gimple | 06:33:56 | -65.2 | Dark | Down | 63.2 | 260.7 | Up | 06:24:28 - 06:43:23 | -1134 |
| Quincy | 06:33:56 | -65.3 | Dark | Down | 63.3 | 261.0 | Up | 06:24:29 - 06:43:24 | -1153 |
| Portola | 06:33:55 | -65.6 | Dark | Down | 62.9 | 261.7 | Up | 06:24:27 - 06:43:22 | -1180 |
| Reno | 06:33:53 | -66.2 | Dark | Down | 62.5 | 262.7 | Up | 06:24:25 - 06:43:20 | -1227 |
| Carson City | 06:33:54 | -66.4 | Dark | Down | 62.5 | 263.4 | Up | 06:24:26 - 06:43:21 | -1265 |
| Gardnerville | 06:33:54 | -66.6 | Dark | Down | 62.5 | 263.9 | Up | 06:24:26 - 06:43:21 | -1291 |
| Yerington | 06:33:51 | -66.9 | Dark | Down | 62.0 | 264.3 | Up | 06:24:24 - 06:43:19 | -1303 |
| Hawthorne | 06:33:50 | -67.5 | Dark | Down | 61.7 | 265.6 | Up | 06:24:23 - 06:43:18 | -1366 |
| Lee Vining | 06:33:54 | -67.5 | Dark | Down | 62.1 | 266.3 | Up | 06:24:26 - 06:43:21 | -1411 |
| Dunrhomin | 06:32:59 | -72.4 | Dark | Down | 51.4 | 271.8 | Up | 06:23:31 - 06:42:26 | -1463 |
| Nikitin | 06:32:59 | -72.5 | Dark | Down | 51.4 | 272.0 | Up | 06:23:31 - 06:42:26 | -1483 |
| CU-SBO | 06:32:59 | -72.6 | Dark | Down | 51.5 | 272.0 | Up | 06:23:32 - 06:42:27 | -1489 |
| Bishop | 06:33:52 | -68.4 | Dark | Down | 61.5 | 267.9 | Up | 06:24:24 - 06:43:19 | -1494 |
| Beatty | 06:33:47 | -69.7 | Dark | Down | 60.3 | 269.7 | Up | 06:24:19 - 06:43:14 | -1587 |
| Patrick | 06:33:38 | -72.4 | Dark | Down | 57.9 | 273.8 | Up | 06:24:11 - 06:43:06 | -1816 |
| Laughlin/Bullhead City | 06:33:42 | -72.1 | Dark | Down | 58.5 | 273.8 | Up | 06:24:14 - 06:43:09 | -1824 |
| Wildwood | 06:34:00 | -69.9 | Dark | Down | 61.6 | 273.8 | Up | 06:24:32 - 06:43:27 | -1825 |
| Lake Havasu City | 06:33:42 | -72.7 | Dark | Down | 58.2 | 275.0 | Up | 06:24:14 - 06:43:09 | -1901 |
| Idyllwild | 06:33:53 | -71.4 | Dark | Down | 60.1 | 275.3 | Up | 06:24:26 - 06:43:21 | -1917 |
| Calipatria | 06:33:49 | -72.6 | Dark | Down | 59.0 | 276.8 | Up | 06:24:22 - 06:43:17 | -2011 |
| George/Scottsdale | 06:33:34 | -74.8 | Dark | Down | 56.1 | 277.3 | Up | 06:24:06 - 06:43:01 | -2040 |
| Yuma | 06:33:47 | -73.5 | Dark | Down | 58.2 | 277.8 | Up | 06:24:20 - 06:43:15 | -2080 |
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 12VR128, (2025/12/20 06:37UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 33.96 157 Hamal 02:07:10.7 +23:27:41 2.0 8.43 127 5 Tri 02:11:25.1 +31:31:35 6.2 2.10 130 PPM 067143 02:16:22.3 +31:02:38 7.9 1.07 131 PPM 067262 02:22:32.5 +31:32:10 9.2 0.37 132 PPM 067246 02:21:40.2 +31:09:58 10.4 0.16 132 12VR128 02:21:13.5 +31:17:56 14.3 132 Positions are for J2000
Event circumstances last updated at 2023/12/16 05:25:49 UT
Marc W. Buie, Southwest Research Institute