Event between 04KC19 and star GA0680:21874708 with event index number of 271102
Geocentric closest approach at 2020/06/11 09:30:48 UTC
J2000 position of star is 18:00:13.5 -20:35:45
Equinox of date position of star is 18:01:23.0 -20:35:44
Stellar brightness G=17.0,
use SENSEUP=128
Star is 60 degrees from the moon.
Moon is 68% illuminated.
TNO apparent brightness V=23.3
[RECON map]
TNO is 30.4 AU from the Sun
and 29.4 AU from the Earth.
The TNO is moving 23.0
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 407 seconds.
The 1-sigma cross-track error in the shadow position is
1695 km.
The sky-plane scale is
21351.5 km/arcsec.
The TNO has an absolute magnitude Hv=8.5
Diameter=121.3 km assuming a 5% albedo -- 5.3 sec chord
Diameter=49.5 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 3:2E
Star training set for 04KC19, (2020/06/11 09:31UT) Object RA Dec mag sep mel Antares 16:30:39.9 -26:28:32 0.9 21.59 80 35Eta Oph 17:11:33.1 -15:44:56 2.6 12.80 73 PPM 267640 18:01:13.1 -20:20:22 6.0 0.26 60 PPM 267674 18:02:20.7 -20:31:09 8.4 0.22 60 PPM 267638 18:01:10.2 -20:27:13 9.4 0.16 60 04KC19 18:01:26.7 -20:35:44 17.0 60 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
2.2 sigma about the mid-time.
The median site spacing is 11.8 km
RECON observability=0.9 and success probability=10.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 09:30:15 | -14.1 | AT | Up | 18.5 | 193.1 | Really Low | 09:15:15 - 09:45:15 | 2504 |
| Summerland | 09:30:16 | -14.5 | AT | Up | 18.9 | 192.9 | Really Low | 09:15:16 - 09:45:16 | 2494 |
| Penticton | 09:30:15 | -14.5 | AT | Up | 18.9 | 193.0 | Really Low | 09:15:15 - 09:45:15 | 2491 |
| Okanagan Falls | 09:30:15 | -14.7 | AT | Up | 19.1 | 193.0 | Really Low | 09:15:15 - 09:45:15 | 2484 |
| Oliver | 09:30:15 | -14.8 | AT | Up | 19.2 | 193.0 | Really Low | 09:15:15 - 09:45:15 | 2477 |
| Anarchist Mountain Observatory | 09:30:15 | -14.9 | AT | Up | 19.4 | 193.2 | Really Low | 09:15:15 - 09:45:15 | 2470 |
| Oroville | 09:30:15 | -15.0 | AT | Up | 19.5 | 193.2 | Really Low | 09:15:15 - 09:45:15 | 2467 |
| Tonasket | 09:30:15 | -15.2 | AT | Up | 19.7 | 193.2 | Really Low | 09:15:15 - 09:45:15 | 2458 |
| Okanogan | 09:30:15 | -15.6 | AT | Up | 20.0 | 193.1 | Low | 09:15:15 - 09:45:15 | 2445 |
| Brewster | 09:30:15 | -15.9 | AT | Up | 20.3 | 192.9 | Low | 09:15:15 - 09:45:15 | 2435 |
| Manson/Chelan | 09:30:16 | -16.2 | AT | Up | 20.6 | 192.5 | Low | 09:15:16 - 09:45:16 | 2428 |
| Entiat | 09:30:16 | -16.4 | AT | Up | 20.8 | 192.5 | Low | 09:15:16 - 09:45:16 | 2419 |
| Wenatchee | 09:30:16 | -16.7 | AT | Up | 21.1 | 192.4 | Low | 09:15:16 - 09:45:16 | 2409 |
| Ellensburg | 09:30:17 | -17.1 | AT | Up | 21.5 | 192.2 | Low | 09:15:17 - 09:45:17 | 2392 |
| Yakima | 09:30:16 | -17.5 | AT | Up | 21.9 | 192.2 | Low | 09:15:16 - 09:45:16 | 2375 |
| Toppenish/White Swan | 09:30:16 | -17.6 | AT | Up | 22.1 | 192.4 | Low | 09:15:16 - 09:45:16 | 2365 |
| Pasco | 09:30:11 | -17.4 | AT | Up | 22.0 | 193.7 | Low | 09:15:11 - 09:45:11 | 2355 |
| PNWRO | 09:30:10 | -17.6 | AT | Up | 22.2 | 193.9 | Low | 09:15:10 - 09:45:10 | 2343 |
| Goldendale | 09:30:17 | -18.3 | Dark | Up | 22.7 | 192.1 | Low | 09:15:17 - 09:45:17 | 2342 |
| George/Umatilla | 09:30:12 | -17.8 | AT | Up | 22.4 | 193.5 | Low | 09:15:12 - 09:45:12 | 2341 |
| The Dalles | 09:30:18 | -18.6 | Dark | Up | 23.0 | 191.7 | Low | 09:15:18 - 09:45:18 | 2333 |
| Maupin | 09:30:17 | -18.9 | Dark | Up | 23.4 | 191.9 | Low | 09:15:17 - 09:45:17 | 2314 |
| Madras/Culver | 09:30:16 | -19.4 | Dark | Up | 23.9 | 191.9 | Low | 09:15:16 - 09:45:16 | 2289 |
| Sisters | 09:30:18 | -19.9 | Dark | Up | 24.3 | 191.4 | Low | 09:15:18 - 09:45:18 | 2274 |
| Redmond | 09:30:17 | -19.8 | Dark | Up | 24.3 | 191.8 | Low | 09:15:17 - 09:45:17 | 2272 |
| Bend | 09:30:17 | -20.0 | Dark | Up | 24.5 | 191.7 | Low | 09:15:17 - 09:45:17 | 2262 |
| Oregon Observatory | 09:30:17 | -20.2 | Dark | Up | 24.7 | 191.6 | Low | 09:15:17 - 09:45:17 | 2254 |
| La Pine/Gilchrist | 09:30:17 | -20.4 | Dark | Up | 24.9 | 191.6 | Low | 09:15:17 - 09:45:17 | 2245 |
| North Lake | 09:30:15 | -20.7 | Dark | Up | 25.2 | 192.2 | Low | 09:15:15 - 09:45:15 | 2222 |
| Paisley | 09:30:13 | -21.1 | Dark | Up | 25.7 | 192.6 | Low | 09:15:13 - 09:45:13 | 2193 |
| Chiloquin | 09:30:18 | -21.6 | Dark | Up | 26.0 | 191.3 | Low | 09:15:18 - 09:45:18 | 2191 |
| Klamath Falls | 09:30:17 | -21.9 | Dark | Up | 26.4 | 191.4 | Low | 09:15:17 - 09:45:17 | 2174 |
| Lakeview | 09:30:12 | -21.5 | Dark | Up | 26.2 | 192.9 | Low | 09:15:12 - 09:45:12 | 2167 |
| Tulelake | 09:30:16 | -22.0 | Dark | Up | 26.6 | 191.8 | Low | 09:15:16 - 09:45:16 | 2159 |
| Cedarville | 09:30:11 | -22.1 | Dark | Up | 26.8 | 193.1 | Low | 09:15:11 - 09:45:11 | 2133 |
| Fall River/Burney | 09:30:15 | -22.9 | Dark | Up | 27.5 | 191.9 | Low | 09:15:15 - 09:45:15 | 2111 |
| Susanville | 09:30:12 | -23.2 | Dark | Up | 28.0 | 192.8 | Low | 09:15:12 - 09:45:12 | 2075 |
| Greenville | 09:30:13 | -23.6 | Dark | Up | 28.3 | 192.5 | Low | 09:15:13 - 09:45:13 | 2061 |
| Gimple | 09:30:13 | -23.6 | Dark | Up | 28.3 | 192.6 | Low | 09:15:13 - 09:45:13 | 2061 |
| Quincy | 09:30:13 | -23.8 | Dark | Up | 28.5 | 192.5 | Low | 09:15:13 - 09:45:13 | 2050 |
| Portola | 09:30:11 | -23.8 | Dark | Up | 28.5 | 193.0 | Low | 09:15:11 - 09:45:11 | 2042 |
| Reno | 09:30:09 | -23.8 | Dark | Up | 28.7 | 193.7 | Low | 09:15:09 - 09:45:09 | 2025 |
| Carson City | 09:30:08 | -24.1 | Dark | Up | 29.0 | 193.8 | Low | 09:15:08 - 09:45:08 | 2005 |
| Yerington | 09:30:06 | -24.1 | Dark | Up | 29.1 | 194.5 | Low | 09:15:06 - 09:45:06 | 1991 |
| Gardnerville | 09:30:07 | -24.3 | Dark | Up | 29.2 | 193.9 | Low | 09:15:07 - 09:45:07 | 1991 |
| Hawthorne | 09:30:03 | -24.4 | Dark | Up | 29.4 | 195.1 | Low | 09:15:03 - 09:45:03 | 1962 |
| Niwot | 09:29:19 | -17.9 | AT | Up | 24.2 | 208.1 | Low | 09:14:19 - 09:44:19 | 1945 |
| SwRI | 09:29:19 | -18.0 | Dark | Up | 24.3 | 208.0 | Low | 09:14:19 - 09:44:19 | 1940 |
| Lee Vining | 09:30:05 | -25.1 | Dark | Up | 30.1 | 194.7 | Up | 09:15:05 - 09:45:05 | 1932 |
| Tonopah | 09:29:58 | -24.3 | Dark | Up | 29.6 | 196.6 | Low | 09:14:58 - 09:44:58 | 1928 |
| Bishop | 09:30:01 | -25.4 | Dark | Up | 30.5 | 195.5 | Up | 09:15:01 - 09:45:01 | 1894 |
| Beatty | 09:29:55 | -25.2 | Dark | Up | 30.6 | 197.3 | Up | 09:14:55 - 09:44:55 | 1858 |
| Lone Pine | 09:30:00 | -25.9 | Dark | Up | 31.2 | 196.0 | Up | 09:15:00 - 09:45:00 | 1847 |
| Indian Springs | 09:29:51 | -25.1 | Dark | Up | 30.6 | 198.5 | Up | 09:14:51 - 09:44:51 | 1831 |
| Henderson | 09:29:48 | -25.4 | Dark | Up | 31.0 | 199.3 | Up | 09:14:48 - 09:44:48 | 1794 |
| CPSLO | 09:30:09 | -28.0 | Dark | Up | 33.0 | 193.4 | Up | 09:15:09 - 09:45:09 | 1778 |
| Searchlight/Boulder City | 09:29:47 | -25.8 | Dark | Up | 31.5 | 199.5 | Up | 09:14:47 - 09:44:47 | 1758 |
| Patrick | 09:29:43 | -25.5 | Dark | Up | 31.3 | 200.5 | Up | 09:14:43 - 09:44:43 | 1748 |
| Laughlin/Bullhead City | 09:29:46 | -26.0 | Dark | Up | 31.7 | 199.9 | Up | 09:14:46 - 09:44:46 | 1737 |
| Kingman/Dolan Springs | 09:29:44 | -25.8 | Dark | Up | 31.5 | 200.4 | Up | 09:14:44 - 09:44:44 | 1735 |
| DCO | 09:29:40 | -25.5 | Dark | Up | 31.3 | 201.3 | Up | 09:14:40 - 09:44:40 | 1723 |
| Mohave Valley | 09:29:45 | -26.2 | Dark | Up | 31.9 | 199.9 | Up | 09:14:45 - 09:44:45 | 1720 |
| Wildwood | 09:30:00 | -28.4 | Dark | Up | 33.7 | 195.8 | Up | 09:15:00 - 09:45:00 | 1693 |
| Lake Havasu City | 09:29:44 | -26.5 | Dark | Up | 32.2 | 200.3 | Up | 09:14:44 - 09:44:44 | 1693 |
| Parker | 09:29:44 | -26.8 | Dark | Up | 32.6 | 200.4 | Up | 09:14:44 - 09:44:44 | 1670 |
| Idyllwild | 09:29:52 | -28.1 | Dark | Up | 33.6 | 197.9 | Up | 09:14:52 - 09:44:52 | 1660 |
| Blythe | 09:29:44 | -27.3 | Dark | Up | 33.1 | 200.2 | Up | 09:14:44 - 09:44:44 | 1638 |
| Calipatria | 09:29:48 | -28.1 | Dark | Up | 33.9 | 199.3 | Up | 09:14:48 - 09:44:48 | 1612 |
| Yuma | 09:29:44 | -28.2 | Dark | Up | 34.0 | 200.4 | Up | 09:14:44 - 09:44:44 | 1577 |
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 04KC19, (2020/06/11 09:31UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 21.59 80 35Eta Oph 17:10:22.7 -15:43:29 2.6 12.80 73 PPM 267640 18:00:00.1 -20:20:23 6.0 0.26 60 PPM 267674 18:01:07.6 -20:31:12 8.4 0.22 60 PPM 267638 17:59:57.1 -20:27:14 9.4 0.16 60 04KC19 18:00:13.5 -20:35:45 17.0 60 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:49:37 UT
Marc W. Buie, Southwest Research Institute