Event between 11SW281 and star GA0920:00108604 with event index number of 1587530
Geocentric closest approach at 2020/12/02 02:34:57 UTC
J2000 position of star is 01:13:35.9 +02:43:08
Equinox of date position of star is 01:14:38.4 +02:49:32
Stellar brightness G=13.0,
use SENSEUP=32
Star is 72 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=26.4
[RECON map]
TNO is 42.9 AU from the Sun
and 42.3 AU from the Earth.
The TNO is moving 13.8
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 244 seconds.
The 1-sigma cross-track error in the shadow position is
2158 km.
The sky-plane scale is
30662.4 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=299.2 km assuming a 5% albedo -- 4.4 sec chord
Diameter=122.2 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CLASSICAL
Star training set for 11SW281, (2020/12/02 02:35UT) Object RA Dec mag sep mel Fomalhaut 22:58:48.1 -29:30:39 1.2 45.85 114 68Omi Cet 02:20:24.3 -02:53:01 2.0 17.39 60 89 Psc 01:18:52.8 +03:43:26 5.2 1.38 70 PPM 144361 01:13:35.1 +02:34:54 7.1 0.37 72 PPM 144379 01:14:48.6 +02:40:30 8.9 0.16 72 11SW281 01:14:40.6 +02:49:46 13.0 71 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
3.7 sigma about the mid-time.
The median site spacing is 18.3 km
RECON observability=1.0 and success probability=3.3%
| 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 | 02:35:50 | -24.5 | Dark | Up | 37.1 | 144.9 | Up | 02:20:50 - 02:50:50 | 6448 |
| Kelowna | 02:35:53 | -24.3 | Dark | Up | 37.4 | 144.5 | Up | 02:20:53 - 02:50:53 | 6426 |
| Peachland | 02:35:54 | -24.1 | Dark | Up | 37.4 | 144.1 | Up | 02:20:54 - 02:50:54 | 6424 |
| Summerland | 02:35:54 | -24.2 | Dark | Up | 37.5 | 144.2 | Up | 02:20:54 - 02:50:54 | 6413 |
| Penticton | 02:35:54 | -24.3 | Dark | Up | 37.6 | 144.3 | Up | 02:20:54 - 02:50:54 | 6406 |
| Victoria | 02:36:15 | -21.7 | Dark | Up | 36.9 | 139.5 | Up | 02:21:15 - 02:51:15 | 6406 |
| Oliver | 02:35:55 | -24.2 | Dark | Up | 37.9 | 144.1 | Up | 02:20:55 - 02:50:55 | 6384 |
| Anarchist Mountain Observatory | 02:35:54 | -24.3 | Dark | Up | 38.1 | 144.3 | Up | 02:20:54 - 02:50:54 | 6370 |
| Tonasket | 02:35:57 | -24.3 | Dark | Up | 38.4 | 144.0 | Up | 02:20:57 - 02:50:57 | 6350 |
| Okanogan | 02:35:58 | -24.1 | Dark | Up | 38.6 | 143.7 | Up | 02:20:58 - 02:50:58 | 6331 |
| Brewster | 02:36:01 | -24.0 | Dark | Up | 38.7 | 143.4 | Up | 02:21:01 - 02:51:01 | 6316 |
| Manson/Chelan | 02:36:02 | -23.7 | Dark | Up | 38.7 | 142.8 | Up | 02:21:02 - 02:51:02 | 6309 |
| Entiat | 02:36:02 | -23.6 | Dark | Up | 38.9 | 142.7 | Up | 02:21:02 - 02:51:02 | 6296 |
| Wenatchee | 02:36:02 | -23.5 | Dark | Up | 39.1 | 142.4 | Up | 02:21:02 - 02:51:02 | 6280 |
| Ellensburg | 02:36:02 | -23.3 | Dark | Up | 39.3 | 141.9 | Up | 02:21:02 - 02:51:02 | 6257 |
| Yakima | 02:36:02 | -23.3 | Dark | Up | 39.6 | 141.7 | Up | 02:21:02 - 02:51:02 | 6230 |
| Toppenish/White Swan | 02:36:02 | -23.3 | Dark | Up | 39.8 | 141.8 | Up | 02:21:02 - 02:51:02 | 6212 |
| Goldendale | 02:36:15 | -23.0 | Dark | Up | 40.1 | 141.1 | Up | 02:21:15 - 02:51:15 | 6181 |
| Pasco | 02:36:02 | -24.2 | Dark | Up | 40.5 | 143.3 | Up | 02:21:02 - 02:51:02 | 6180 |
| The Dalles | 02:36:17 | -22.7 | Dark | Up | 40.1 | 140.5 | Up | 02:21:17 - 02:51:17 | 6171 |
| PNWRO | 02:36:02 | -24.3 | Dark | Up | 40.8 | 143.4 | Up | 02:21:02 - 02:51:02 | 6159 |
| Maupin | 02:36:19 | -22.7 | Dark | Up | 40.5 | 140.4 | Up | 02:21:19 - 02:51:19 | 6141 |
| Sisters | 02:36:25 | -22.3 | Dark | Up | 41.0 | 139.4 | Up | 02:21:25 - 02:51:25 | 6088 |
| Redmond | 02:36:23 | -22.5 | Dark | Up | 41.2 | 139.9 | Up | 02:21:23 - 02:51:23 | 6079 |
| Bend | 02:36:24 | -22.4 | Dark | Up | 41.3 | 139.6 | Up | 02:21:24 - 02:51:24 | 6066 |
| Oregon Observatory | 02:36:25 | -22.3 | Dark | Up | 41.3 | 139.3 | Up | 02:21:25 - 02:51:25 | 6056 |
| La Pine/Gilchrist | 02:36:26 | -22.2 | Dark | Up | 41.5 | 139.1 | Up | 02:21:26 - 02:51:26 | 6043 |
| North Lake | 02:36:26 | -22.6 | Dark | Up | 42.1 | 139.6 | Up | 02:21:26 - 02:51:26 | 6000 |
| Paisley | 02:36:26 | -22.7 | Dark | Up | 42.7 | 139.7 | Up | 02:21:26 - 02:51:26 | 5952 |
| Klamath Falls | 02:36:34 | -21.8 | Dark | Up | 42.4 | 138.0 | Up | 02:21:34 - 02:51:34 | 5941 |
| Lakeview | 02:36:27 | -22.8 | Dark | Up | 43.2 | 139.6 | Up | 02:21:27 - 02:51:27 | 5911 |
| Cedarville | 02:36:29 | -22.8 | Dark | Up | 43.7 | 139.5 | Up | 02:21:29 - 02:51:29 | 5859 |
| Fall River/Burney | 02:36:37 | -21.9 | Dark | Up | 43.5 | 137.7 | Up | 02:21:37 - 02:51:37 | 5845 |
| Susanville | 02:36:36 | -22.3 | Dark | Up | 44.4 | 138.2 | Up | 02:21:36 - 02:51:36 | 5783 |
| Greenville | 02:36:39 | -22.0 | Dark | Up | 44.4 | 137.7 | Up | 02:21:39 - 02:51:39 | 5767 |
| Gimple | 02:36:38 | -22.1 | Dark | Up | 44.5 | 137.8 | Up | 02:21:38 - 02:51:38 | 5766 |
| Quincy | 02:36:39 | -22.0 | Dark | Up | 44.6 | 137.5 | Up | 02:21:39 - 02:51:39 | 5752 |
| Portola | 02:36:37 | -22.3 | Dark | Up | 44.9 | 138.0 | Up | 02:21:37 - 02:51:37 | 5733 |
| Reno | 02:36:35 | -22.8 | Dark | Up | 45.4 | 138.6 | Up | 02:21:35 - 02:51:35 | 5699 |
| Carson City | 02:36:36 | -22.7 | Dark | Up | 45.7 | 138.4 | Up | 02:21:36 - 02:51:36 | 5670 |
| Gardnerville | 02:36:37 | -22.7 | Dark | Up | 45.9 | 138.3 | Up | 02:21:37 - 02:51:37 | 5650 |
| Yerington | 02:36:33 | -23.2 | Dark | Up | 46.2 | 139.1 | Up | 02:21:33 - 02:51:33 | 5642 |
| Hawthorne | 02:36:32 | -23.5 | Dark | Up | 46.8 | 139.4 | Up | 02:21:32 - 02:51:32 | 5595 |
| Lee Vining | 02:36:37 | -23.0 | Dark | Up | 47.0 | 138.4 | Up | 02:21:37 - 02:51:37 | 5560 |
| Tonopah | 02:36:26 | -24.5 | Dark | Up | 47.9 | 140.8 | Up | 02:21:26 - 02:51:26 | 5528 |
| Bishop | 02:36:35 | -23.5 | Dark | Up | 47.8 | 138.9 | Up | 02:21:35 - 02:51:35 | 5496 |
| Niwot | 02:35:13 | -33.7 | Dark | Up | 50.7 | 158.6 | Up | 02:20:13 - 02:50:13 | 5446 |
| SwRI | 02:35:14 | -33.7 | Dark | Up | 50.8 | 158.4 | Up | 02:20:14 - 02:50:14 | 5439 |
| Beatty | 02:36:28 | -24.6 | Dark | Up | 49.0 | 140.6 | Up | 02:21:28 - 02:51:28 | 5424 |
| Indian Springs | 02:36:23 | -25.4 | Dark | Up | 49.8 | 141.8 | Up | 02:21:23 - 02:51:23 | 5374 |
| CPSLO | 02:36:55 | -21.3 | Dark | Up | 48.1 | 134.6 | Up | 02:21:55 - 02:51:55 | 5373 |
| Henderson | 02:36:21 | -25.9 | Dark | Up | 50.5 | 142.3 | Up | 02:21:21 - 02:51:21 | 5314 |
| Searchlight/Boulder City | 02:36:23 | -25.8 | Dark | Up | 51.0 | 142.0 | Up | 02:21:23 - 02:51:23 | 5265 |
| Patrick | 02:36:17 | -26.7 | Dark | Up | 51.6 | 143.4 | Up | 02:21:17 - 02:51:17 | 5238 |
| Laughlin/Bullhead City | 02:36:21 | -26.1 | Dark | Up | 51.4 | 142.2 | Up | 02:21:21 - 02:51:21 | 5232 |
| Wildwood | 02:36:48 | -22.7 | Dark | Up | 50.1 | 136.2 | Up | 02:21:48 - 02:51:48 | 5228 |
| Kingman/Dolan Springs | 02:36:18 | -26.5 | Dark | Up | 51.7 | 143.0 | Up | 02:21:18 - 02:51:18 | 5223 |
| Mohave Valley | 02:36:22 | -26.0 | Dark | Up | 51.6 | 142.0 | Up | 02:21:22 - 02:51:22 | 5208 |
| DCO | 02:36:13 | -27.2 | Dark | Up | 52.2 | 144.1 | Up | 02:21:13 - 02:51:13 | 5196 |
| Lake Havasu City | 02:36:22 | -26.2 | Dark | Up | 52.1 | 142.1 | Up | 02:21:22 - 02:51:22 | 5169 |
| Idyllwild | 02:36:39 | -24.1 | Dark | Up | 51.4 | 138.3 | Up | 02:21:39 - 02:51:39 | 5156 |
| Parker | 02:36:23 | -26.1 | Dark | Up | 52.4 | 141.8 | Up | 02:21:23 - 02:51:23 | 5138 |
| Blythe | 02:36:26 | -25.8 | Dark | Up | 52.6 | 141.0 | Up | 02:21:26 - 02:51:26 | 5099 |
| Calipatria | 02:36:34 | -25.0 | Dark | Up | 52.5 | 139.3 | Up | 02:21:34 - 02:51:34 | 5077 |
| George/Scottsdale | 02:36:02 | -28.0 | Dark | Up | 53.9 | 144.9 | Up | 02:21:02 - 02:51:02 | 5049 |
| Yuma | 02:36:30 | -25.6 | Dark | Up | 53.4 | 140.2 | Up | 02:21:30 - 02:51:30 | 5019 |
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 11SW281, (2020/12/02 02:35UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:23 1.2 45.85 114 68Omi Cet 02:19:20.8 -02:58:45 2.0 17.39 60 89 Psc 01:17:47.9 +03:36:51 5.2 1.38 70 PPM 144361 01:12:30.4 +02:28:16 7.1 0.37 72 PPM 144379 01:13:43.9 +02:33:53 8.9 0.16 72 11SW281 01:13:35.9 +02:43:08 13.0 72 Positions are for J2000
Event circumstances last updated at 2020/03/10 22:34:39 UT
Marc W. Buie, Southwest Research Institute