Event between 11JW31 and star GA0700:33669571 with event index number of 1491564
Geocentric closest approach at 2025/07/30 06:31:05 UTC
J2000 position of star is 19:47:03.3 -19:13:04
Equinox of date position of star is 19:48:10.4 -19:10:09
Stellar brightness G=11.6,
use SENSEUP=8
Star is 103 degrees from the moon.
Moon is 29% illuminated.
TNO apparent brightness V=25.5
[RECON map]
TNO is 42.1 AU from the Sun
and 41.1 AU from the Earth.
The TNO is moving 23.9
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 370 seconds.
The 1-sigma cross-track error in the shadow position is
2183 km.
The sky-plane scale is
29797.8 km/arcsec.
The TNO has an absolute magnitude Hv=9.3
Diameter=83.9 km assuming a 5% albedo -- 3.5 sec chord
Diameter=34.3 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CLASSICAL
Star training set for 11JW31, (2025/07/30 06:31UT) Object RA Dec mag sep mel Fomalhaut 22:59:03.3 -29:29:09 1.2 44.30 136 Nunki 18:56:51.0 -26:15:45 2.0 13.87 90 57 Sgr 19:53:41.0 -18:58:40 5.8 1.23 104 PPM 236488 19:48:47.0 -18:40:57 7.8 0.47 103 PPM 236483 19:48:38.8 -18:59:52 9.5 0.16 103 11JW31 19:48:32.6 -19:09:11 11.6 103 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
2.4 sigma about the mid-time.
The median site spacing is 11.3 km
RECON observability=1.0 and success probability=11.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 06:30:50 | -18.6 | Dark | Down | 20.3 | 169.6 | Low | 06:15:50 - 06:45:50 | -943 |
| Summerland | 06:30:51 | -18.8 | Dark | Down | 20.5 | 169.3 | Low | 06:15:51 - 06:45:51 | -952 |
| Penticton | 06:30:51 | -18.9 | Dark | Down | 20.6 | 169.4 | Low | 06:15:51 - 06:45:51 | -955 |
| Okanagan Falls | 06:30:51 | -19.1 | Dark | Down | 20.8 | 169.4 | Low | 06:15:51 - 06:45:51 | -962 |
| Oliver | 06:30:51 | -19.2 | Dark | Down | 21.0 | 169.4 | Low | 06:15:51 - 06:45:51 | -969 |
| Anarchist Mountain Observatory | 06:30:51 | -19.5 | Dark | Down | 21.2 | 169.6 | Low | 06:15:51 - 06:45:51 | -977 |
| Oroville | 06:30:51 | -19.5 | Dark | Down | 21.2 | 169.5 | Low | 06:15:51 - 06:45:51 | -979 |
| Tonasket | 06:30:51 | -19.7 | Dark | Down | 21.5 | 169.5 | Low | 06:15:51 - 06:45:51 | -988 |
| Okanogan | 06:30:52 | -20.0 | Dark | Down | 21.8 | 169.3 | Low | 06:15:52 - 06:45:52 | -1000 |
| Brewster | 06:30:53 | -20.2 | Dark | Down | 22.0 | 169.1 | Low | 06:15:53 - 06:45:53 | -1009 |
| Manson/Chelan | 06:30:54 | -20.3 | Dark | Down | 22.2 | 168.7 | Low | 06:15:54 - 06:45:54 | -1014 |
| Entiat | 06:30:55 | -20.5 | Dark | Down | 22.4 | 168.7 | Low | 06:15:55 - 06:45:55 | -1022 |
| Wenatchee | 06:30:55 | -20.7 | Dark | Down | 22.6 | 168.5 | Low | 06:15:55 - 06:45:55 | -1031 |
| Ellensburg | 06:30:57 | -21.0 | Dark | Down | 23.0 | 168.3 | Low | 06:15:57 - 06:45:57 | -1046 |
| Yakima | 06:30:57 | -21.3 | Dark | Down | 23.4 | 168.2 | Low | 06:15:57 - 06:45:57 | -1063 |
| Toppenish/White Swan | 06:30:56 | -21.6 | Dark | Down | 23.6 | 168.4 | Low | 06:15:56 - 06:45:56 | -1074 |
| Pasco | 06:30:53 | -22.0 | Dark | Down | 23.9 | 169.7 | Low | 06:15:53 - 06:45:53 | -1091 |
| Goldendale | 06:30:58 | -22.0 | Dark | Down | 24.1 | 167.9 | Low | 06:15:58 - 06:45:58 | -1094 |
| The Dalles | 06:31:00 | -22.1 | Dark | Down | 24.3 | 167.5 | Low | 06:16:00 - 06:46:00 | -1101 |
| George/Umatilla | 06:30:54 | -22.3 | Dark | Down | 24.2 | 169.4 | Low | 06:15:54 - 06:45:54 | -1104 |
| PNWRO | 06:30:52 | -22.3 | Dark | Down | 24.2 | 169.9 | Low | 06:15:52 - 06:45:52 | -1104 |
| Maupin | 06:31:00 | -22.5 | Dark | Down | 24.7 | 167.6 | Low | 06:16:00 - 06:46:00 | -1120 |
| Madras/Culver | 06:31:01 | -22.9 | Dark | Down | 25.2 | 167.5 | Low | 06:16:01 - 06:46:01 | -1144 |
| Sisters | 06:31:03 | -23.1 | Dark | Down | 25.5 | 167.0 | Low | 06:16:03 - 06:46:03 | -1156 |
| Redmond | 06:31:01 | -23.3 | Dark | Down | 25.6 | 167.4 | Low | 06:16:01 - 06:46:01 | -1160 |
| Bend | 06:31:02 | -23.4 | Dark | Down | 25.8 | 167.2 | Low | 06:16:02 - 06:46:02 | -1169 |
| Oregon Observatory | 06:31:03 | -23.5 | Dark | Down | 25.9 | 167.1 | Low | 06:16:03 - 06:46:03 | -1176 |
| La Pine/Gilchrist | 06:31:03 | -23.7 | Dark | Down | 26.1 | 167.0 | Low | 06:16:03 - 06:46:03 | -1185 |
| North Lake | 06:31:01 | -24.3 | Dark | Down | 26.6 | 167.6 | Low | 06:16:01 - 06:46:01 | -1211 |
| Chiloquin | 06:31:05 | -24.6 | Dark | Down | 27.1 | 166.5 | Low | 06:16:05 - 06:46:05 | -1235 |
| Paisley | 06:31:01 | -24.9 | Dark | Down | 27.2 | 167.9 | Low | 06:16:01 - 06:46:01 | -1242 |
| Klamath Falls | 06:31:05 | -24.9 | Dark | Down | 27.5 | 166.6 | Low | 06:16:05 - 06:46:05 | -1253 |
| Lakeview | 06:31:01 | -25.4 | Dark | Down | 27.7 | 168.0 | Low | 06:16:01 - 06:46:01 | -1269 |
| Tulelake | 06:31:05 | -25.2 | Dark | Down | 27.8 | 166.8 | Low | 06:16:05 - 06:46:05 | -1269 |
| Cedarville | 06:31:01 | -26.0 | Dark | Down | 28.4 | 168.1 | Low | 06:16:01 - 06:46:01 | -1304 |
| Fall River/Burney | 06:31:05 | -26.1 | Dark | Down | 28.7 | 166.8 | Low | 06:16:05 - 06:46:05 | -1317 |
| Susanville | 06:31:04 | -26.9 | Dark | Down | 29.4 | 167.5 | Low | 06:16:04 - 06:46:04 | -1357 |
| Greenville | 06:31:05 | -27.0 | Dark | Down | 29.6 | 167.2 | Low | 06:16:05 - 06:46:05 | -1369 |
| Gimple | 06:31:05 | -27.1 | Dark | Down | 29.6 | 167.3 | Low | 06:16:05 - 06:46:05 | -1369 |
| Quincy | 06:31:05 | -27.2 | Dark | Down | 29.8 | 167.2 | Low | 06:16:05 - 06:46:05 | -1379 |
| Portola | 06:31:03 | -27.5 | Dark | Down | 30.0 | 167.6 | Up | 06:16:03 - 06:46:03 | -1391 |
| Reno | 06:31:02 | -28.0 | Dark | Down | 30.4 | 168.3 | Up | 06:16:02 - 06:46:02 | -1412 |
| Carson City | 06:31:02 | -28.3 | Dark | Down | 30.8 | 168.3 | Up | 06:16:02 - 06:46:02 | -1432 |
| Gardnerville | 06:31:02 | -28.5 | Dark | Down | 31.0 | 168.3 | Up | 06:16:02 - 06:46:02 | -1446 |
| Yerington | 06:31:00 | -28.7 | Dark | Down | 31.0 | 168.9 | Up | 06:16:00 - 06:46:00 | -1450 |
| Hawthorne | 06:30:58 | -29.3 | Dark | Down | 31.6 | 169.5 | Up | 06:15:58 - 06:45:58 | -1482 |
| Lee Vining | 06:31:01 | -29.6 | Dark | Down | 32.1 | 168.9 | Up | 06:16:01 - 06:46:01 | -1508 |
| Tonopah | 06:30:54 | -30.1 | Dark | Down | 32.2 | 171.0 | Up | 06:15:54 - 06:45:54 | -1525 |
| Bishop | 06:30:58 | -30.4 | Dark | Down | 32.7 | 169.6 | Up | 06:15:58 - 06:45:58 | -1551 |
| Niwot | 06:30:10 | -30.8 | Dark | Down | 30.6 | 184.1 | Up | 06:15:10 - 06:45:10 | -1588 |
| SwRI | 06:30:11 | -30.9 | Dark | Down | 30.7 | 184.0 | Up | 06:15:11 - 06:45:11 | -1592 |
| Beatty | 06:30:53 | -31.3 | Dark | Down | 33.4 | 171.3 | Up | 06:15:53 - 06:45:53 | -1598 |
| Lone Pine | 06:30:58 | -31.2 | Dark | Down | 33.5 | 169.9 | Up | 06:15:58 - 06:45:58 | -1600 |
| Indian Springs | 06:30:50 | -32.0 | Dark | Down | 33.9 | 172.5 | Up | 06:15:50 - 06:45:50 | -1631 |
| CPSLO | 06:31:09 | -31.5 | Dark | Down | 34.4 | 166.8 | Up | 06:16:09 - 06:46:09 | -1649 |
| Henderson | 06:30:47 | -32.7 | Dark | Down | 34.5 | 173.2 | Up | 06:15:47 - 06:45:47 | -1673 |
| Searchlight/Boulder City | 06:30:48 | -33.2 | Dark | Down | 35.0 | 173.3 | Up | 06:15:48 - 06:45:48 | -1709 |
| Patrick | 06:30:44 | -33.6 | Dark | Down | 35.2 | 174.5 | Up | 06:15:44 - 06:45:44 | -1727 |
| Laughlin/Bullhead City | 06:30:46 | -33.6 | Dark | Down | 35.4 | 173.6 | Up | 06:15:46 - 06:45:46 | -1733 |
| Kingman/Dolan Springs | 06:30:45 | -33.7 | Dark | Down | 35.4 | 174.2 | Up | 06:15:45 - 06:45:45 | -1738 |
| Wildwood | 06:31:03 | -33.3 | Dark | Down | 35.9 | 169.0 | Up | 06:16:03 - 06:46:03 | -1748 |
| Mohave Valley | 06:30:47 | -33.9 | Dark | Down | 35.6 | 173.6 | Up | 06:15:47 - 06:45:47 | -1750 |
| DCO | 06:30:41 | -34.1 | Dark | Down | 35.5 | 175.3 | Up | 06:15:41 - 06:45:41 | -1757 |
| Lake Havasu City | 06:30:46 | -34.3 | Dark | Down | 36.1 | 173.9 | Up | 06:15:46 - 06:45:46 | -1779 |
| Idyllwild | 06:30:56 | -34.3 | Dark | Down | 36.6 | 171.1 | Up | 06:15:56 - 06:45:56 | -1795 |
| Parker | 06:30:46 | -34.6 | Dark | Down | 36.4 | 173.9 | Up | 06:15:46 - 06:45:46 | -1801 |
| Blythe | 06:30:48 | -35.0 | Dark | Down | 36.9 | 173.5 | Up | 06:15:48 - 06:45:48 | -1831 |
| Calipatria | 06:30:51 | -35.2 | Dark | Down | 37.3 | 172.4 | Up | 06:15:51 - 06:45:51 | -1850 |
| Yuma | 06:30:49 | -35.9 | Dark | Down | 37.8 | 173.4 | Up | 06:15:49 - 06:45:49 | -1891 |
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 11JW31, (2025/07/30 06:31UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 44.30 136 Nunki 18:55:15.9 -26:17:49 2.0 13.87 90 57 Sgr 19:52:12.0 -19:02:43 5.8 1.23 104 PPM 236488 19:47:18.0 -18:44:50 7.8 0.47 103 PPM 236483 19:47:09.7 -19:03:45 9.5 0.16 103 11JW31 19:47:03.3 -19:13:04 11.6 103 Positions are for J2000
Event circumstances last updated at 2019/03/24 23:12:54 UT
Marc W. Buie, Southwest Research Institute