Event between 10WM75 and star GA0960:01025459 with event index number of 1567551
Geocentric closest approach at 2020/09/15 10:17:36 UTC
J2000 position of star is 05:53:43.2 +07:22:52
Equinox of date position of star is 05:54:48.8 +07:23:02
Stellar brightness G=16.8,
use SENSEUP=128
Star is 60 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=26.5
[RECON map]
TNO is 43.5 AU from the Sun
and 43.6 AU from the Earth.
The TNO is moving 11.8
km/sec on the sky relative to the star, or,
1.3 arcsec/hr.
The 1-sigma error in the time of the event is 289 seconds.
The 1-sigma cross-track error in the shadow position is
4997 km.
The sky-plane scale is
31588.4 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=380.2 km assuming a 5% albedo -- 5.1 sec chord
Diameter=155.2 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 10WM75, (2020/09/15 10:18UT) Object RA Dec mag sep mel Betelgeuse 05:56:17.6 +07:24:33 0.4 0.36 59 Bellatrix 05:26:14.6 +06:22:00 1.6 7.17 67 PPM 149639 05:56:01.9 +05:51:47 6.4 1.55 60 PPM 149627 05:55:36.3 +08:03:24 7.2 0.70 59 PPM 149580 05:53:42.7 +07:33:05 9.6 0.33 60 PPM 149612 05:54:51.1 +07:29:08 11.2 0.10 60 10WM75 05:54:50.5 +07:23:03 16.8 59 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
3.1 sigma about the mid-time.
The median site spacing is 22.9 km
RECON observability=1.0 and success probability=9.1%
| 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 | 10:09:23 | -29.4 | Dark | Down | 24.2 | 108.7 | Low | 09:54:23 - 10:24:23 | 2523 |
| Kelowna | 10:09:25 | -29.7 | Dark | Down | 24.3 | 108.4 | Low | 09:54:25 - 10:24:25 | 2479 |
| Peachland | 10:09:23 | -30.0 | Dark | Down | 24.1 | 108.1 | Low | 09:54:23 - 10:24:23 | 2460 |
| Summerland | 10:09:23 | -30.0 | Dark | Down | 24.2 | 108.1 | Low | 09:54:23 - 10:24:23 | 2447 |
| Penticton | 10:09:24 | -30.0 | Dark | Down | 24.3 | 108.2 | Low | 09:54:24 - 10:24:24 | 2443 |
| Oliver | 10:09:24 | -30.3 | Dark | Down | 24.4 | 108.1 | Low | 09:54:24 - 10:24:24 | 2405 |
| Anarchist Mountain Observatory | 10:09:25 | -30.3 | Dark | Down | 24.6 | 108.1 | Low | 09:54:25 - 10:24:25 | 2391 |
| Tonasket | 10:09:25 | -30.6 | Dark | Down | 24.7 | 108.0 | Low | 09:54:25 - 10:24:25 | 2357 |
| Okanogan | 10:09:25 | -30.9 | Dark | Down | 24.7 | 107.7 | Low | 09:54:25 - 10:24:25 | 2318 |
| Brewster | 10:09:27 | -31.2 | Dark | Down | 24.6 | 107.4 | Low | 09:54:27 - 10:24:27 | 2286 |
| Manson/Chelan | 10:09:25 | -31.5 | Dark | Down | 24.4 | 107.0 | Low | 09:54:25 - 10:24:25 | 2255 |
| Victoria | 10:09:20 | -32.4 | Dark | Down | 22.2 | 104.6 | Low | 09:54:20 - 10:24:20 | 2252 |
| Entiat | 10:09:25 | -31.7 | Dark | Down | 24.5 | 106.8 | Low | 09:54:25 - 10:24:25 | 2230 |
| Wenatchee | 10:09:25 | -32.0 | Dark | Down | 24.5 | 106.6 | Low | 09:54:25 - 10:24:25 | 2200 |
| Ellensburg | 10:09:24 | -32.4 | Dark | Down | 24.4 | 106.3 | Low | 09:54:24 - 10:24:24 | 2152 |
| Yakima | 10:09:26 | -32.7 | Dark | Down | 24.5 | 106.1 | Low | 09:54:26 - 10:24:26 | 2108 |
| Pasco | 10:09:32 | -32.3 | Dark | Down | 25.6 | 107.1 | Low | 09:54:32 - 10:24:32 | 2108 |
| Toppenish/White Swan | 10:09:26 | -32.8 | Dark | Down | 24.7 | 106.1 | Low | 09:54:26 - 10:24:26 | 2090 |
| PNWRO | 10:09:31 | -32.4 | Dark | Down | 25.8 | 107.2 | Low | 09:54:31 - 10:24:31 | 2088 |
| Goldendale | 10:09:27 | -33.4 | Dark | Down | 24.6 | 105.6 | Low | 09:54:27 - 10:24:27 | 2021 |
| The Dalles | 10:09:26 | -33.7 | Dark | Down | 24.4 | 105.2 | Low | 09:54:26 - 10:24:26 | 1989 |
| Niwot | 10:10:30 | -28.2 | Dark | Down | 37.5 | 115.7 | Up | 09:55:30 - 10:25:30 | 1963 |
| SwRI | 10:10:29 | -28.4 | Dark | Down | 37.4 | 115.6 | Up | 09:55:29 - 10:25:29 | 1949 |
| Maupin | 10:09:27 | -34.0 | Dark | Down | 24.6 | 105.1 | Low | 09:54:27 - 10:24:27 | 1947 |
| Redmond | 10:09:29 | -34.7 | Dark | Down | 24.8 | 104.6 | Low | 09:54:29 - 10:24:29 | 1850 |
| Sisters | 10:09:29 | -34.9 | Dark | Down | 24.5 | 104.3 | Low | 09:54:29 - 10:24:29 | 1843 |
| Bend | 10:09:29 | -35.0 | Dark | Down | 24.7 | 104.4 | Low | 09:54:29 - 10:24:29 | 1824 |
| Oregon Observatory | 10:09:29 | -35.2 | Dark | Down | 24.7 | 104.2 | Low | 09:54:29 - 10:24:29 | 1802 |
| La Pine/Gilchrist | 10:09:29 | -35.3 | Dark | Down | 24.7 | 104.1 | Low | 09:54:29 - 10:24:29 | 1779 |
| North Lake | 10:09:32 | -35.4 | Dark | Down | 25.2 | 104.3 | Low | 09:54:32 - 10:24:32 | 1748 |
| Paisley | 10:09:34 | -35.6 | Dark | Down | 25.6 | 104.4 | Low | 09:54:34 - 10:24:34 | 1699 |
| Lakeview | 10:09:37 | -35.9 | Dark | Down | 25.9 | 104.3 | Low | 09:54:37 - 10:24:37 | 1651 |
| Klamath Falls | 10:09:34 | -36.6 | Dark | Down | 24.8 | 103.2 | Low | 09:54:34 - 10:24:34 | 1620 |
| Cedarville | 10:09:38 | -36.3 | Dark | Down | 26.2 | 104.1 | Low | 09:54:38 - 10:24:38 | 1588 |
| Fall River/Burney | 10:09:36 | -37.3 | Dark | Down | 25.4 | 103.0 | Low | 09:54:36 - 10:24:36 | 1506 |
| Susanville | 10:09:40 | -37.3 | Dark | Down | 26.1 | 103.2 | Low | 09:54:40 - 10:24:40 | 1460 |
| Gimple | 10:09:41 | -37.6 | Dark | Down | 26.0 | 103.0 | Low | 09:54:41 - 10:24:41 | 1425 |
| Greenville | 10:09:41 | -37.7 | Dark | Down | 25.9 | 102.9 | Low | 09:54:41 - 10:24:41 | 1423 |
| Quincy | 10:09:42 | -37.8 | Dark | Down | 26.0 | 102.8 | Low | 09:54:42 - 10:24:42 | 1402 |
| Portola | 10:09:43 | -37.7 | Dark | Down | 26.4 | 103.1 | Low | 09:54:43 - 10:24:43 | 1402 |
| Reno | 10:09:45 | -37.5 | Dark | Down | 26.9 | 103.4 | Low | 09:54:45 - 10:24:45 | 1392 |
| Carson City | 10:09:46 | -37.7 | Dark | Down | 27.0 | 103.3 | Low | 09:54:46 - 10:24:46 | 1355 |
| Yerington | 10:09:49 | -37.5 | Dark | Down | 27.6 | 103.7 | Low | 09:54:49 - 10:24:49 | 1353 |
| Gardnerville | 10:09:47 | -37.9 | Dark | Down | 27.1 | 103.2 | Low | 09:54:47 - 10:24:47 | 1331 |
| Hawthorne | 10:09:52 | -37.5 | Dark | Down | 28.1 | 103.8 | Low | 09:54:52 - 10:24:52 | 1321 |
| Tonopah | 10:09:58 | -37.0 | Dark | Down | 29.3 | 104.6 | Low | 09:54:58 - 10:24:58 | 1315 |
| Lee Vining | 10:09:52 | -38.2 | Dark | Down | 27.8 | 103.2 | Low | 09:54:52 - 10:24:52 | 1249 |
| Indian Springs | 10:10:07 | -37.1 | Dark | Down | 30.9 | 104.9 | Up | 09:55:07 - 10:25:07 | 1216 |
| Beatty | 10:10:03 | -37.5 | Dark | Down | 30.0 | 104.3 | Low | 09:55:03 - 10:25:03 | 1213 |
| Bishop | 10:09:55 | -38.2 | Dark | Down | 28.5 | 103.4 | Low | 09:54:55 - 10:24:55 | 1209 |
| Henderson | 10:10:11 | -36.9 | Dark | Down | 31.6 | 105.1 | Up | 09:55:11 - 10:25:11 | 1186 |
| Patrick | 10:10:16 | -36.6 | Dark | Down | 32.6 | 105.6 | Up | 09:55:16 - 10:25:16 | 1163 |
| DCO | 10:10:20 | -36.3 | Dark | Down | 33.3 | 105.9 | Up | 09:55:20 - 10:25:20 | 1159 |
| Kingman/Dolan Springs | 10:10:18 | -36.8 | Dark | Down | 32.6 | 105.3 | Up | 09:55:18 - 10:25:18 | 1134 |
| Searchlight/Boulder City | 10:10:14 | -37.2 | Dark | Down | 31.8 | 104.8 | Up | 09:55:14 - 10:25:14 | 1131 |
| Laughlin/Bullhead City | 10:10:15 | -37.2 | Dark | Down | 32.1 | 104.9 | Up | 09:55:15 - 10:25:15 | 1114 |
| Mohave Valley | 10:10:17 | -37.4 | Dark | Down | 32.2 | 104.7 | Up | 09:55:17 - 10:25:17 | 1087 |
| George/Scottsdale | 10:10:30 | -36.2 | Dark | Down | 34.7 | 105.9 | Up | 09:55:30 - 10:25:30 | 1073 |
| Lake Havasu City | 10:10:19 | -37.4 | Dark | Down | 32.5 | 104.7 | Up | 09:55:19 - 10:25:19 | 1057 |
| Parker | 10:10:20 | -37.6 | Dark | Down | 32.6 | 104.5 | Up | 09:55:20 - 10:25:20 | 1023 |
| Blythe | 10:10:22 | -38.1 | Dark | Down | 32.5 | 104.0 | Up | 09:55:22 - 10:25:22 | 961 |
| CPSLO | 10:09:57 | -40.9 | Dark | Down | 27.2 | 100.8 | Low | 09:54:57 - 10:24:57 | 935 |
| Idyllwild | 10:10:14 | -39.5 | Dark | Down | 30.8 | 102.6 | Up | 09:55:14 - 10:25:14 | 898 |
| Calipatria | 10:10:21 | -39.1 | Dark | Down | 31.9 | 103.0 | Up | 09:55:21 - 10:25:21 | 879 |
| Wildwood | 10:10:07 | -40.5 | Dark | Down | 29.1 | 101.5 | Low | 09:55:07 - 10:25:07 | 873 |
| Yuma | 10:10:25 | -38.7 | Dark | Down | 32.7 | 103.4 | Up | 09:55:25 - 10:25:25 | 869 |
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 10WM75, (2020/09/15 10:18UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 0.36 59 Bellatrix 05:25:07.8 +06:20:58 1.6 7.17 67 PPM 149639 05:54:55.4 +05:51:39 6.4 1.55 60 PPM 149627 05:54:28.7 +08:03:15 7.2 0.70 59 PPM 149580 05:52:35.4 +07:32:52 9.6 0.33 60 PPM 149612 05:53:43.8 +07:28:57 11.2 0.10 60 10WM75 05:53:43.2 +07:22:52 16.8 60 Positions are for J2000
Event circumstances last updated at 2020/03/10 22:04:43 UT
Marc W. Buie, Southwest Research Institute