Event between 00SR331 and star GA1060:02984568 with event index number of 1968652
Geocentric closest approach at 2025/01/03 13:07:02 UTC
J2000 position of star is 07:55:00.4 +16:27:22
Equinox of date position of star is 07:56:15.6 +16:23:49
Stellar brightness G=15.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 148 degrees from the moon.
Moon is 15% illuminated.
TNO apparent brightness V=24.1
[RECON map]
TNO is 34.0 AU from the Sun
and 33.0 AU from the Earth.
The TNO is moving 23.5
km/sec on the sky relative to the star, or,
3.5 arcsec/hr.
The 1-sigma error in the time of the event is 220 seconds.
The 1-sigma cross-track error in the shadow position is
2134 km.
The sky-plane scale is
23943.4 km/arcsec.
The TNO has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 4.5 sec chord
Diameter=42.8 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is 5:2EEE
Star training set for 00SR331, (2025/01/03 13:07UT) Object RA Dec mag sep mel Pollux 07:46:50.7 +27:57:49 1.1 11.78 144 5 Cnc 08:02:55.6 +16:23:04 5.9 1.56 150 PPM 124567 07:55:22.8 +15:58:11 7.4 0.49 148 PPM 124589 07:56:21.4 +16:24:46 10.0 0.03 148 00SR331 07:56:25.9 +16:23:19 15.0 148 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
4.1 sigma about the mid-time.
The median site spacing is 17.8 km
RECON observability=1.0 and success probability=20.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 13:04:57 | -18.3 | Dark | Down | 22.1 | 268.6 | Low | 12:49:57 - 13:19:57 | -196 |
| Kamloops | 13:05:05 | -26.9 | Dark | Down | 31.2 | 257.5 | Up | 12:50:05 - 13:20:05 | -606 |
| Kelowna | 13:05:01 | -26.3 | Dark | Down | 30.8 | 258.7 | Up | 12:50:01 - 13:20:01 | -638 |
| Peachland | 13:05:01 | -26.5 | Dark | Down | 31.0 | 258.5 | Up | 12:50:01 - 13:20:01 | -653 |
| Summerland | 13:05:00 | -26.4 | Dark | Down | 31.0 | 258.7 | Up | 12:50:00 - 13:20:00 | -661 |
| Penticton | 13:05:00 | -26.3 | Dark | Down | 30.9 | 258.8 | Up | 12:50:00 - 13:20:00 | -662 |
| Oliver | 13:04:59 | -26.3 | Dark | Down | 31.0 | 259.0 | Up | 12:49:59 - 13:19:59 | -686 |
| Anarchist Mountain Observatory | 13:04:58 | -26.2 | Dark | Down | 30.9 | 259.3 | Up | 12:49:58 - 13:19:58 | -693 |
| Tonasket | 13:04:57 | -26.2 | Dark | Down | 31.0 | 259.4 | Up | 12:49:57 - 13:19:57 | -716 |
| Okanogan | 13:04:56 | -26.3 | Dark | Down | 31.2 | 259.5 | Up | 12:49:56 - 13:19:56 | -742 |
| Brewster | 13:04:55 | -26.4 | Dark | Down | 31.4 | 259.5 | Up | 12:49:55 - 13:19:55 | -766 |
| Manson/Chelan | 13:04:55 | -26.6 | Dark | Down | 31.6 | 259.3 | Up | 12:49:55 - 13:19:55 | -789 |
| Victoria | 13:05:02 | -28.8 | Dark | Down | 33.6 | 256.2 | Up | 12:50:02 - 13:20:02 | -824 |
| Wenatchee | 13:04:53 | -26.7 | Dark | Down | 31.8 | 259.5 | Up | 12:49:53 - 13:19:53 | -827 |
| Ellensburg | 13:04:52 | -26.8 | Dark | Down | 32.1 | 259.5 | Up | 12:49:52 - 13:19:52 | -861 |
| PNWRO | 13:04:46 | -25.6 | Dark | Down | 31.1 | 261.4 | Up | 12:49:46 - 13:19:46 | -891 |
| Yakima | 13:04:51 | -26.8 | Dark | Down | 32.2 | 259.8 | Up | 12:49:51 - 13:19:51 | -891 |
| Toppenish/White Swan | 13:04:50 | -26.6 | Dark | Down | 32.1 | 260.0 | Up | 12:49:50 - 13:19:50 | -902 |
| Dunrhomin | 13:04:11 | -14.7 | AT | Down | 21.5 | 273.8 | Low | 12:49:11 - 13:19:11 | -949 |
| Goldendale | 13:04:49 | -26.9 | Dark | Down | 32.5 | 260.0 | Up | 12:49:49 - 13:19:49 | -953 |
| The Dalles | 13:04:48 | -27.1 | Dark | Down | 32.8 | 259.9 | Up | 12:49:48 - 13:19:48 | -979 |
| Maupin | 13:04:47 | -27.0 | Dark | Down | 32.8 | 260.2 | Up | 12:49:47 - 13:19:47 | -1007 |
| Sisters | 13:04:45 | -27.3 | Dark | Down | 33.3 | 260.4 | Up | 12:49:45 - 13:19:45 | -1084 |
| Bend | 13:04:43 | -27.1 | Dark | Down | 33.1 | 260.7 | Up | 12:49:43 - 13:19:43 | -1095 |
| Oregon Observatory | 13:04:43 | -27.1 | Dark | Down | 33.3 | 260.8 | Up | 12:49:43 - 13:19:43 | -1112 |
| North Lake | 13:04:40 | -26.7 | Dark | Down | 33.0 | 261.6 | Up | 12:49:40 - 13:19:40 | -1146 |
| Lakeview | 13:04:35 | -26.2 | Dark | Down | 32.7 | 262.6 | Up | 12:49:35 - 13:19:35 | -1212 |
| Chiloquin | 13:04:40 | -27.3 | Dark | Down | 33.8 | 261.3 | Up | 12:49:40 - 13:19:40 | -1224 |
| Klamath Falls | 13:04:38 | -27.2 | Dark | Down | 33.8 | 261.6 | Up | 12:49:38 - 13:19:38 | -1248 |
| Cedarville | 13:04:33 | -25.9 | Dark | Down | 32.7 | 263.2 | Up | 12:49:33 - 13:19:33 | -1258 |
| Fall River/Burney | 13:04:33 | -26.8 | Dark | Down | 33.7 | 262.6 | Up | 12:49:33 - 13:19:33 | -1330 |
| Susanville | 13:04:30 | -26.1 | Dark | Down | 33.2 | 263.6 | Up | 12:49:30 - 13:19:30 | -1359 |
| Gimple | 13:04:29 | -26.3 | Dark | Down | 33.4 | 263.6 | Up | 12:49:29 - 13:19:29 | -1388 |
| Greenville | 13:04:30 | -26.3 | Dark | Down | 33.4 | 263.5 | Up | 12:49:30 - 13:19:30 | -1390 |
| Portola | 13:04:28 | -25.9 | Dark | Down | 33.1 | 264.1 | Up | 12:49:28 - 13:19:28 | -1402 |
| Reno | 13:04:26 | -25.4 | Dark | Down | 32.7 | 264.7 | Up | 12:49:26 - 13:19:26 | -1406 |
| Quincy | 13:04:29 | -26.3 | Dark | Down | 33.5 | 263.7 | Up | 12:49:29 - 13:19:29 | -1406 |
| Yerington | 13:04:23 | -24.8 | Dark | Down | 32.2 | 265.5 | Up | 12:49:23 - 13:19:23 | -1432 |
| Carson City | 13:04:25 | -25.3 | Dark | Down | 32.7 | 264.9 | Up | 12:49:25 - 13:19:25 | -1434 |
| Tonopah | 13:04:17 | -23.2 | Dark | Down | 30.8 | 267.3 | Up | 12:49:17 - 13:19:17 | -1451 |
| Gardnerville | 13:04:24 | -25.2 | Dark | Down | 32.7 | 265.1 | Up | 12:49:24 - 13:19:24 | -1452 |
| Hawthorne | 13:04:21 | -24.3 | Dark | Down | 31.8 | 266.1 | Up | 12:49:21 - 13:19:21 | -1454 |
| Lee Vining | 13:04:20 | -24.6 | Dark | Down | 32.3 | 266.1 | Up | 12:49:20 - 13:19:20 | -1514 |
| Indian Springs | 13:04:10 | -21.7 | Dark | Down | 29.6 | 269.1 | Low | 12:49:10 - 13:19:10 | -1529 |
| Beatty | 13:04:13 | -22.6 | Dark | Down | 30.5 | 268.2 | Up | 12:49:13 - 13:19:13 | -1533 |
| Bishop | 13:04:17 | -23.9 | Dark | Down | 31.7 | 267.0 | Up | 12:49:17 - 13:19:17 | -1542 |
| Henderson | 13:04:08 | -21.0 | Dark | Down | 29.1 | 269.8 | Low | 12:49:08 - 13:19:08 | -1553 |
| Patrick | 13:04:04 | -20.0 | Dark | Down | 28.2 | 270.8 | Low | 12:49:04 - 13:19:04 | -1571 |
| Kingman/Dolan Springs | 13:04:03 | -20.1 | Dark | Down | 28.3 | 270.8 | Low | 12:49:03 - 13:19:03 | -1595 |
| Laughlin/Bullhead City | 13:04:04 | -20.5 | Dark | Down | 28.7 | 270.5 | Low | 12:49:04 - 13:19:04 | -1613 |
| Mohave Valley | 13:04:03 | -20.4 | Dark | Down | 28.7 | 270.7 | Low | 12:49:03 - 13:19:03 | -1635 |
| George/Scottsdale | 13:03:56 | -18.0 | AT | Down | 26.5 | 272.8 | Low | 12:48:56 - 13:18:56 | -1653 |
| Lake Havasu City | 13:04:02 | -20.1 | Dark | Down | 28.5 | 271.0 | Low | 12:49:02 - 13:19:02 | -1662 |
| Parker | 13:04:01 | -20.0 | Dark | Down | 28.5 | 271.2 | Low | 12:49:01 - 13:19:01 | -1690 |
| Idyllwild | 13:04:03 | -21.9 | Dark | Down | 30.5 | 270.1 | Up | 12:49:03 - 13:19:03 | -1797 |
| Calipatria | 13:03:59 | -20.8 | Dark | Down | 29.5 | 271.1 | Low | 12:48:59 - 13:18:59 | -1814 |
| Wildwood | 13:04:07 | -23.5 | Dark | Down | 32.0 | 268.8 | Up | 12:49:07 - 13:19:07 | -1823 |
| Yuma | 13:03:57 | -19.9 | Dark | Down | 28.8 | 271.8 | Low | 12:48:57 - 13:18:57 | -1824 |
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 00SR331, (2025/01/03 13:07UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 11.78 144 5 Cnc 08:01:30.2 +16:27:19 5.9 1.56 150 PPM 124567 07:53:57.5 +16:02:11 7.4 0.49 148 PPM 124589 07:54:55.8 +16:28:48 10.0 0.03 148 00SR331 07:55:00.4 +16:27:22 15.0 148 Positions are for J2000
Event circumstances last updated at 2021/12/26 23:59:42 UT
Marc W. Buie, Southwest Research Institute