Event between 14WC509 and star GA1100:02985564 with event index number of 1800688
Geocentric closest approach at 2026/03/30 08:20:43 UTC
J2000 position of star is 08:02:45.4 +21:09:41
Equinox of date position of star is 08:03:58.1 +21:06:09
Stellar brightness G=13.9,
use SENSEUP=64
Star is 39 degrees from the moon.
Moon is 92% illuminated.
TNO apparent brightness V=25.4
[RECON map]
TNO is 33.7 AU from the Sun
and 33.3 AU from the Earth.
The TNO is moving 5.0
km/sec on the sky relative to the star, or,
0.7 arcsec/hr.
The 1-sigma error in the time of the event is 784 seconds.
The 1-sigma cross-track error in the shadow position is
1920 km.
The sky-plane scale is
24182.5 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=229.1 km assuming a 5% albedo -- 12.0 sec chord
Diameter=93.5 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is 3:2E
Star training set for 14WC509, (2026/03/30 08:21UT) Object RA Dec mag sep mel Pollux 07:46:55.3 +27:57:38 1.1 7.93 44 10Mu 2Cnc 08:09:18.3 +21:30:13 5.3 1.24 38 PPM 098305 08:06:00.2 +20:55:57 7.8 0.43 38 PPM 098259 08:04:23.6 +20:52:13 10.0 0.22 39 14WC509 08:04:17.7 +21:05:11 13.9 38 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
1.1 sigma about the mid-time.
The median site spacing is 21.0 km
RECON observability=1.0 and success probability=17.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Clarence Fulton | 08:07:28 | -35.9 | Dark | Up | 29.0 | 268.8 | Low | 07:52:28 - 08:22:28 | 2395 |
| Kelowna | 08:07:23 | -36.3 | Dark | Up | 29.2 | 268.8 | Low | 07:52:23 - 08:22:23 | 2360 |
| Peachland | 08:07:25 | -36.4 | Dark | Up | 29.4 | 268.7 | Low | 07:52:25 - 08:22:25 | 2344 |
| Summerland | 08:07:21 | -36.6 | Dark | Up | 29.3 | 268.8 | Low | 07:52:21 - 08:22:21 | 2334 |
| Penticton | 08:07:18 | -36.6 | Dark | Up | 29.2 | 268.9 | Low | 07:52:18 - 08:22:18 | 2331 |
| Oliver | 08:07:14 | -37.0 | Dark | Up | 29.3 | 269.1 | Low | 07:52:14 - 08:22:14 | 2302 |
| Anarchist Mountain Observatory | 08:07:10 | -37.2 | Dark | Up | 29.1 | 269.3 | Low | 07:52:10 - 08:22:10 | 2293 |
| Tonasket | 08:07:07 | -37.5 | Dark | Up | 29.2 | 269.4 | Low | 07:52:07 - 08:22:07 | 2265 |
| Okanogan | 08:07:04 | -37.8 | Dark | Up | 29.3 | 269.5 | Low | 07:52:04 - 08:22:04 | 2233 |
| Brewster | 08:07:00 | -38.1 | Dark | Up | 29.5 | 269.5 | Low | 07:52:00 - 08:22:00 | 2206 |
| Manson/Chelan | 08:06:59 | -38.3 | Dark | Up | 29.7 | 269.3 | Low | 07:51:59 - 08:21:59 | 2180 |
| Entiat | 08:06:55 | -38.5 | Dark | Up | 29.8 | 269.4 | Low | 07:51:55 - 08:21:55 | 2159 |
| Victoria | 08:07:28 | -37.6 | Dark | Up | 31.8 | 266.6 | Up | 07:52:28 - 08:22:28 | 2159 |
| Wenatchee | 08:06:54 | -38.8 | Dark | Up | 29.8 | 269.5 | Low | 07:51:54 - 08:21:54 | 2135 |
| Ellensburg | 08:06:49 | -39.2 | Dark | Up | 30.0 | 269.5 | Up | 07:51:49 - 08:21:49 | 2095 |
| Pasco | 08:06:29 | -39.9 | Dark | Up | 29.1 | 270.9 | Low | 07:51:29 - 08:21:29 | 2065 |
| Yakima | 08:06:43 | -39.6 | Dark | Up | 30.0 | 269.7 | Up | 07:51:43 - 08:21:43 | 2059 |
| PNWRO | 08:06:25 | -40.2 | Dark | Up | 28.9 | 271.2 | Low | 07:51:25 - 08:21:25 | 2049 |
| Toppenish/White Swan | 08:06:41 | -39.8 | Dark | Up | 29.9 | 270.0 | Low | 07:51:41 - 08:21:41 | 2045 |
| Goldendale | 08:06:35 | -40.4 | Dark | Up | 30.2 | 270.0 | Up | 07:51:35 - 08:21:35 | 1986 |
| The Dalles | 08:06:34 | -40.6 | Dark | Up | 30.5 | 269.8 | Up | 07:51:34 - 08:21:34 | 1958 |
| Maupin | 08:06:27 | -41.0 | Dark | Up | 30.5 | 270.1 | Up | 07:51:27 - 08:21:27 | 1924 |
| Niwot | 08:04:07 | -44.0 | Dark | Up | 18.7 | 282.3 | Really Low | 07:49:07 - 08:19:07 | 1914 |
| SwRI | 08:04:07 | -44.2 | Dark | Up | 18.8 | 282.3 | Really Low | 07:49:07 - 08:19:07 | 1902 |
| Redmond | 08:06:15 | -41.9 | Dark | Up | 30.5 | 270.6 | Up | 07:51:15 - 08:21:15 | 1842 |
| Sisters | 08:06:19 | -41.9 | Dark | Up | 30.8 | 270.3 | Up | 07:51:19 - 08:21:19 | 1834 |
| Bend | 08:06:14 | -42.1 | Dark | Up | 30.7 | 270.6 | Up | 07:51:14 - 08:21:14 | 1819 |
| Oregon Observatory | 08:06:11 | -42.3 | Dark | Up | 30.8 | 270.6 | Up | 07:51:11 - 08:21:11 | 1801 |
| La Pine/Gilchrist | 08:06:09 | -42.5 | Dark | Up | 30.8 | 270.7 | Up | 07:51:09 - 08:21:09 | 1781 |
| North Lake | 08:06:00 | -42.9 | Dark | Up | 30.4 | 271.3 | Up | 07:51:00 - 08:21:00 | 1757 |
| Paisley | 08:05:51 | -43.5 | Dark | Up | 30.1 | 271.9 | Up | 07:50:51 - 08:20:51 | 1716 |
| Lakeview | 08:05:44 | -44.0 | Dark | Up | 30.0 | 272.3 | Low | 07:50:44 - 08:20:44 | 1675 |
| Klamath Falls | 08:05:55 | -43.9 | Dark | Up | 31.0 | 271.3 | Up | 07:50:55 - 08:20:55 | 1642 |
| Cedarville | 08:05:35 | -44.7 | Dark | Up | 29.9 | 272.7 | Low | 07:50:35 - 08:20:35 | 1620 |
| Fall River/Burney | 08:05:36 | -45.1 | Dark | Up | 30.8 | 272.2 | Up | 07:50:36 - 08:20:36 | 1544 |
| Susanville | 08:05:24 | -45.8 | Dark | Up | 30.2 | 273.0 | Up | 07:50:24 - 08:20:24 | 1505 |
| Gimple | 08:05:22 | -46.0 | Dark | Up | 30.4 | 273.1 | Up | 07:50:22 - 08:20:22 | 1474 |
| Greenville | 08:05:23 | -46.0 | Dark | Up | 30.4 | 273.0 | Up | 07:50:23 - 08:20:23 | 1472 |
| Portola | 08:05:16 | -46.4 | Dark | Up | 30.1 | 273.5 | Up | 07:50:16 - 08:20:16 | 1454 |
| Quincy | 08:05:20 | -46.2 | Dark | Up | 30.4 | 273.1 | Up | 07:50:20 - 08:20:20 | 1453 |
| Reno | 08:05:08 | -46.6 | Dark | Up | 29.6 | 274.0 | Low | 07:50:08 - 08:20:08 | 1447 |
| Carson City | 08:05:03 | -47.0 | Dark | Up | 29.5 | 274.2 | Low | 07:50:03 - 08:20:03 | 1414 |
| Yerington | 08:04:58 | -47.2 | Dark | Up | 29.0 | 274.7 | Low | 07:49:58 - 08:19:58 | 1413 |
| Gardnerville | 08:05:01 | -47.2 | Dark | Up | 29.5 | 274.4 | Low | 07:50:01 - 08:20:01 | 1392 |
| Hawthorne | 08:04:50 | -47.6 | Dark | Up | 28.6 | 275.2 | Low | 07:49:50 - 08:19:50 | 1384 |
| Tonopah | 08:04:35 | -48.0 | Dark | Up | 27.5 | 276.3 | Low | 07:49:35 - 08:19:35 | 1380 |
| Lee Vining | 08:04:46 | -48.2 | Dark | Up | 29.0 | 275.3 | Low | 07:49:46 - 08:19:46 | 1318 |
| Indian Springs | 08:04:08 | -49.4 | Dark | Up | 26.2 | 277.8 | Low | 07:49:08 - 08:19:08 | 1284 |
| Beatty | 08:04:18 | -49.2 | Dark | Up | 27.1 | 277.1 | Low | 07:49:18 - 08:19:18 | 1284 |
| Bishop | 08:04:35 | -48.8 | Dark | Up | 28.4 | 276.0 | Low | 07:49:35 - 08:19:35 | 1281 |
| Henderson | 08:04:00 | -49.9 | Dark | Up | 25.6 | 278.4 | Low | 07:49:00 - 08:19:00 | 1254 |
| Patrick | 08:03:45 | -50.4 | Dark | Up | 24.7 | 279.3 | Low | 07:48:45 - 08:18:45 | 1228 |
| DCO | 08:03:38 | -50.6 | Dark | Up | 24.1 | 279.8 | Low | 07:48:38 - 08:18:38 | 1220 |
| Searchlight/Boulder City | 08:03:53 | -50.4 | Dark | Up | 25.5 | 278.7 | Low | 07:48:53 - 08:18:53 | 1202 |
| Kingman/Dolan Springs | 08:03:44 | -50.6 | Dark | Up | 24.8 | 279.3 | Low | 07:48:44 - 08:18:44 | 1201 |
| Laughlin/Bullhead City | 08:03:48 | -50.7 | Dark | Up | 25.2 | 279.0 | Low | 07:48:48 - 08:18:48 | 1183 |
| Mohave Valley | 08:03:44 | -51.0 | Dark | Up | 25.1 | 279.1 | Low | 07:48:44 - 08:18:44 | 1158 |
| George/Scottsdale | 08:03:18 | -51.7 | Dark | Up | 22.8 | 281.0 | Low | 07:48:18 - 08:18:18 | 1128 |
| Lake Havasu City | 08:03:38 | -51.3 | Dark | Up | 24.9 | 279.4 | Low | 07:48:38 - 08:18:38 | 1127 |
| Parker | 08:03:35 | -51.7 | Dark | Up | 24.8 | 279.6 | Low | 07:48:35 - 08:18:35 | 1094 |
| Blythe | 08:03:30 | -52.2 | Dark | Up | 25.0 | 279.7 | Low | 07:48:30 - 08:18:30 | 1035 |
| CPSLO | 08:04:28 | -50.9 | Dark | Up | 30.0 | 275.9 | Low | 07:49:28 - 08:19:28 | 1020 |
| Idyllwild | 08:03:44 | -52.3 | Dark | Up | 26.7 | 278.6 | Low | 07:48:44 - 08:18:44 | 983 |
| Wildwood | 08:04:01 | -52.1 | Dark | Up | 28.3 | 277.5 | Low | 07:49:01 - 08:19:01 | 962 |
| Calipatria | 08:03:31 | -52.8 | Dark | Up | 25.7 | 279.5 | Low | 07:48:31 - 08:18:31 | 959 |
| Yuma | 08:03:21 | -53.2 | Dark | Up | 24.9 | 280.1 | Low | 07:48:21 - 08:18:21 | 945 |
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 14WC509, (2026/03/30 08:21UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 7.93 44 10Mu 2Cnc 08:07:45.9 +21:34:53 5.3 1.24 38 PPM 098305 08:04:28.0 +21:00:30 7.8 0.43 38 PPM 098259 08:02:51.4 +20:56:44 10.0 0.22 39 14WC509 08:02:45.4 +21:09:41 13.9 39 Positions are for J2000
Event circumstances last updated at 2020/09/03 21:31:20 UT
Marc W. Buie, Southwest Research Institute