Event between 05TV189 and star GA0920:01402870 with event index number of 1023718
Geocentric closest approach at 2020/12/08 12:18:44 UTC
J2000 position of star is 06:25:42.4 +03:52:03
Equinox of date position of star is 06:26:48.6 +03:51:16
Stellar brightness G=16.9,
use SENSEUP=128
Star is 79 degrees from the moon.
Moon is 45% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 32.6 AU from the Sun
and 31.8 AU from the Earth.
The TNO is moving 24.3
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 236 seconds.
The 1-sigma cross-track error in the shadow position is
3913 km.
The sky-plane scale is
23041.9 km/arcsec.
The TNO has an absolute magnitude Hv=7.7
Diameter=172.2 km assuming a 5% albedo -- 7.1 sec chord
Diameter=70.3 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is 3:2E
Star training set for 05TV189, (2020/12/08 12:19UT) Object RA Dec mag sep mel Betelgeuse 05:56:18.4 +07:24:33 0.4 8.38 86 Alhena 06:38:55.3 +16:22:47 1.9 12.87 75 PPM 150401 06:24:24.7 +03:45:08 6.0 0.61 80 PPM 150505 06:27:30.5 +04:05:23 8.3 0.29 79 PPM 150474 06:26:27.0 +03:50:07 8.7 0.09 79 05TV189 06:26:48.6 +03:51:15 16.9 79 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
3.8 sigma about the mid-time.
The median site spacing is 21.9 km
RECON observability=1.0 and success probability=7.7%
| 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 | 12:16:08 | -32.1 | Dark | Up | 29.7 | 235.7 | Low | 12:01:08 - 12:31:08 | 6184 |
| Kelowna | 12:16:07 | -32.2 | Dark | Up | 30.0 | 235.7 | Low | 12:01:07 - 12:31:07 | 6151 |
| Peachland | 12:16:07 | -32.4 | Dark | Up | 30.2 | 235.5 | Up | 12:01:07 - 12:31:07 | 6144 |
| Summerland | 12:16:07 | -32.3 | Dark | Up | 30.2 | 235.7 | Up | 12:01:07 - 12:31:07 | 6130 |
| Penticton | 12:16:07 | -32.3 | Dark | Up | 30.2 | 235.8 | Up | 12:01:07 - 12:31:07 | 6124 |
| Oliver | 12:16:06 | -32.3 | Dark | Up | 30.4 | 236.0 | Up | 12:01:06 - 12:31:06 | 6093 |
| Anarchist Mountain Observatory | 12:16:05 | -32.1 | Dark | Up | 30.4 | 236.2 | Up | 12:01:05 - 12:31:05 | 6077 |
| Victoria | 12:16:13 | -34.8 | Dark | Up | 32.8 | 232.5 | Up | 12:01:13 - 12:31:13 | 6064 |
| Tonasket | 12:16:05 | -32.2 | Dark | Up | 30.6 | 236.3 | Up | 12:01:05 - 12:31:05 | 6050 |
| Okanogan | 12:16:06 | -32.3 | Dark | Up | 30.9 | 236.3 | Up | 12:01:06 - 12:31:06 | 6022 |
| Brewster | 12:16:05 | -32.5 | Dark | Up | 31.1 | 236.3 | Up | 12:01:05 - 12:31:05 | 5999 |
| Manson/Chelan | 12:16:05 | -32.7 | Dark | Up | 31.5 | 236.0 | Up | 12:01:05 - 12:31:05 | 5984 |
| Entiat | 12:16:05 | -32.8 | Dark | Up | 31.6 | 236.1 | Up | 12:01:05 - 12:31:05 | 5964 |
| Wenatchee | 12:16:05 | -32.8 | Dark | Up | 31.8 | 236.1 | Up | 12:01:05 - 12:31:05 | 5943 |
| Ellensburg | 12:16:05 | -33.0 | Dark | Up | 32.2 | 236.1 | Up | 12:01:05 - 12:31:05 | 5907 |
| Yakima | 12:16:04 | -33.0 | Dark | Up | 32.4 | 236.3 | Up | 12:01:04 - 12:31:04 | 5871 |
| Toppenish/White Swan | 12:16:03 | -32.9 | Dark | Up | 32.4 | 236.6 | Up | 12:01:03 - 12:31:03 | 5850 |
| Pasco | 12:16:00 | -32.0 | Dark | Up | 31.8 | 237.8 | Up | 12:01:00 - 12:31:00 | 5830 |
| PNWRO | 12:16:00 | -31.9 | Dark | Up | 31.8 | 238.2 | Up | 12:01:00 - 12:31:00 | 5806 |
| Goldendale | 12:16:03 | -33.2 | Dark | Up | 33.0 | 236.5 | Up | 12:01:03 - 12:31:03 | 5804 |
| The Dalles | 12:16:04 | -33.5 | Dark | Up | 33.3 | 236.2 | Up | 12:01:04 - 12:31:04 | 5786 |
| Maupin | 12:16:03 | -33.4 | Dark | Up | 33.5 | 236.6 | Up | 12:01:03 - 12:31:03 | 5747 |
| Sisters | 12:16:02 | -33.7 | Dark | Up | 34.3 | 236.6 | Up | 12:01:02 - 12:31:02 | 5670 |
| Redmond | 12:16:01 | -33.5 | Dark | Up | 34.1 | 237.0 | Up | 12:01:01 - 12:31:01 | 5665 |
| Bend | 12:16:02 | -33.6 | Dark | Up | 34.3 | 237.0 | Up | 12:01:02 - 12:31:02 | 5646 |
| Oregon Observatory | 12:16:02 | -33.6 | Dark | Up | 34.4 | 236.9 | Up | 12:01:02 - 12:31:02 | 5631 |
| La Pine/Gilchrist | 12:16:02 | -33.7 | Dark | Up | 34.6 | 237.0 | Up | 12:01:02 - 12:31:02 | 5613 |
| North Lake | 12:16:00 | -33.3 | Dark | Up | 34.4 | 237.8 | Up | 12:01:00 - 12:31:00 | 5568 |
| Paisley | 12:15:58 | -33.0 | Dark | Up | 34.5 | 238.5 | Up | 12:00:58 - 12:30:58 | 5513 |
| Klamath Falls | 12:16:01 | -33.9 | Dark | Up | 35.5 | 237.6 | Up | 12:01:01 - 12:31:01 | 5479 |
| Lakeview | 12:15:58 | -32.8 | Dark | Up | 34.7 | 238.9 | Up | 12:00:58 - 12:30:58 | 5464 |
| Cedarville | 12:15:56 | -32.7 | Dark | Up | 34.9 | 239.5 | Up | 12:00:56 - 12:30:56 | 5400 |
| Fall River/Burney | 12:15:58 | -33.6 | Dark | Up | 35.9 | 238.6 | Up | 12:00:58 - 12:30:58 | 5364 |
| Susanville | 12:15:55 | -33.0 | Dark | Up | 35.8 | 239.7 | Up | 12:00:55 - 12:30:55 | 5297 |
| Greenville | 12:15:55 | -33.2 | Dark | Up | 36.1 | 239.6 | Up | 12:00:55 - 12:30:55 | 5273 |
| Gimple | 12:15:55 | -33.1 | Dark | Up | 36.0 | 239.7 | Up | 12:00:55 - 12:30:55 | 5272 |
| Quincy | 12:15:56 | -33.2 | Dark | Up | 36.2 | 239.8 | Up | 12:00:56 - 12:30:56 | 5253 |
| Portola | 12:15:54 | -32.8 | Dark | Up | 35.9 | 240.3 | Up | 12:00:54 - 12:30:54 | 5237 |
| Reno | 12:15:52 | -32.3 | Dark | Up | 35.6 | 241.0 | Up | 12:00:52 - 12:30:52 | 5206 |
| Niwot | 12:15:22 | -21.3 | Dark | Up | 25.2 | 252.6 | Low | 12:00:22 - 12:30:22 | 5172 |
| Carson City | 12:15:52 | -32.3 | Dark | Up | 35.8 | 241.3 | Up | 12:00:52 - 12:30:52 | 5171 |
| SwRI | 12:15:23 | -21.4 | Dark | Up | 25.3 | 252.6 | Low | 12:00:23 - 12:30:23 | 5161 |
| Gardnerville | 12:15:52 | -32.2 | Dark | Up | 35.9 | 241.5 | Up | 12:00:52 - 12:30:52 | 5147 |
| Yerington | 12:15:50 | -31.7 | Dark | Up | 35.5 | 242.0 | Up | 12:00:50 - 12:30:50 | 5147 |
| Hawthorne | 12:15:48 | -31.3 | Dark | Up | 35.3 | 242.7 | Up | 12:00:48 - 12:30:48 | 5097 |
| Lee Vining | 12:15:49 | -31.6 | Dark | Up | 35.9 | 242.6 | Up | 12:00:49 - 12:30:49 | 5046 |
| Tonopah | 12:15:44 | -30.2 | Dark | Up | 34.6 | 244.2 | Up | 12:00:44 - 12:30:44 | 5040 |
| Bishop | 12:15:46 | -31.0 | Dark | Up | 35.7 | 243.6 | Up | 12:00:46 - 12:30:46 | 4980 |
| Beatty | 12:15:41 | -29.7 | Dark | Up | 34.7 | 245.3 | Up | 12:00:41 - 12:30:41 | 4921 |
| Indian Springs | 12:15:38 | -28.8 | Dark | Up | 34.1 | 246.4 | Up | 12:00:38 - 12:30:38 | 4880 |
| Henderson | 12:15:36 | -28.1 | Dark | Up | 33.8 | 247.3 | Up | 12:00:36 - 12:30:36 | 4821 |
| CPSLO | 12:15:49 | -32.6 | Dark | Up | 38.2 | 243.1 | Up | 12:00:49 - 12:30:49 | 4793 |
| Searchlight/Boulder City | 12:15:35 | -28.0 | Dark | Up | 34.0 | 247.7 | Up | 12:00:35 - 12:30:35 | 4763 |
| Patrick | 12:15:32 | -27.2 | Dark | Up | 33.2 | 248.5 | Up | 12:00:32 - 12:30:32 | 4750 |
| Laughlin/Bullhead City | 12:15:35 | -27.7 | Dark | Up | 33.8 | 248.1 | Up | 12:00:35 - 12:30:35 | 4730 |
| Kingman/Dolan Springs | 12:15:33 | -27.3 | Dark | Up | 33.4 | 248.5 | Up | 12:00:33 - 12:30:33 | 4729 |
| DCO | 12:15:31 | -26.5 | Dark | Up | 32.8 | 249.2 | Up | 12:00:31 - 12:30:31 | 4714 |
| Mohave Valley | 12:15:34 | -27.6 | Dark | Up | 33.9 | 248.3 | Up | 12:00:34 - 12:30:34 | 4702 |
| Lake Havasu City | 12:15:33 | -27.4 | Dark | Up | 33.9 | 248.7 | Up | 12:00:33 - 12:30:33 | 4660 |
| Wildwood | 12:15:43 | -30.8 | Dark | Up | 37.3 | 245.6 | Up | 12:00:43 - 12:30:43 | 4653 |
| Parker | 12:15:33 | -27.3 | Dark | Up | 34.0 | 249.0 | Up | 12:00:33 - 12:30:33 | 4624 |
| Idyllwild | 12:15:38 | -29.2 | Dark | Up | 36.0 | 247.4 | Up | 12:00:38 - 12:30:38 | 4601 |
| Blythe | 12:15:33 | -27.4 | Dark | Up | 34.4 | 249.1 | Up | 12:00:33 - 12:30:33 | 4572 |
| George/Scottsdale | 12:15:27 | -25.2 | Dark | Up | 32.2 | 251.0 | Up | 12:00:27 - 12:30:27 | 4564 |
| Calipatria | 12:15:34 | -28.1 | Dark | Up | 35.3 | 248.7 | Up | 12:00:34 - 12:30:34 | 4529 |
| Yuma | 12:15:32 | -27.3 | Dark | Up | 34.7 | 249.7 | Up | 12:00:32 - 12:30:32 | 4478 |
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 05TV189, (2020/12/08 12:19UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 8.38 86 Alhena 06:37:42.8 +16:23:57 1.9 12.87 75 PPM 150401 06:23:18.5 +03:45:52 6.0 0.61 80 PPM 150505 06:26:24.1 +04:06:12 8.3 0.29 79 PPM 150474 06:25:20.7 +03:50:54 8.7 0.09 79 05TV189 06:25:42.4 +03:52:03 16.9 79 Positions are for J2000
Event circumstances last updated at 2020/12/02 11:31:55 UT
Marc W. Buie, Southwest Research Institute