Event between (500888) 13JP65 and star GA0780:05237305 with event index number of 327332
Geocentric closest approach at 2020/05/18 11:14:28 UTC
J2000 position of star is 16:25:47.1 -11:07:07
Equinox of date position of star is 16:26:52.8 -11:09:44
Stellar brightness G=15.7,
use SENSEUP=128
Star is 125 degrees from the moon.
Moon is 16% illuminated.
TNO apparent brightness V=24.1
[RECON map]
TNO is 40.7 AU from the Sun
and 39.7 AU from the Earth.
The TNO is moving 24.4
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 568 seconds.
The 1-sigma cross-track error in the shadow position is
5808 km.
The sky-plane scale is
28786.2 km/arcsec.
The TNO has an absolute magnitude Hv=8.0
Diameter=151.4 km assuming a 5% albedo -- 6.2 sec chord
Diameter=61.8 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 500888, (2020/05/18 11:14UT) Object RA Dec mag sep mel Antares 16:30:39.6 -26:28:32 0.9 15.34 120 13Zet Oph 16:38:17.0 -10:36:25 2.6 2.85 122 3Ups Oph 16:28:54.4 -08:24:57 4.2 2.79 124 PPM 231692 16:27:26.3 -11:31:52 8.5 0.39 124 PPM 231701 16:28:03.1 -11:05:22 9.7 0.29 124 500888 16:26:54.7 -11:09:49 15.7 124 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
1.6 sigma about the mid-time.
The median site spacing is 34.3 km
RECON observability=0.2 and success probability=2.2%
| 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 | 11:13:34 | -7.3 | NT | Up | 19.7 | 221.3 | Really Low | 10:58:34 - 11:28:34 | -1419 |
| Kelowna | 11:13:34 | -7.7 | NT | Up | 20.1 | 221.2 | Low | 10:58:34 - 11:28:34 | -1437 |
| Summerland | 11:13:33 | -8.0 | NT | Up | 20.4 | 221.1 | Low | 10:58:33 - 11:28:33 | -1449 |
| Penticton | 11:13:33 | -8.0 | NT | Up | 20.4 | 221.2 | Low | 10:58:33 - 11:28:33 | -1452 |
| Oliver | 11:13:32 | -8.2 | NT | Up | 20.7 | 221.3 | Low | 10:58:32 - 11:28:32 | -1468 |
| Anarchist Mountain Observatory | 11:13:31 | -8.2 | NT | Up | 20.7 | 221.5 | Low | 10:58:31 - 11:28:31 | -1475 |
| Tonasket | 11:13:30 | -8.5 | NT | Up | 21.0 | 221.5 | Low | 10:58:30 - 11:28:30 | -1490 |
| Okanogan | 11:13:30 | -8.8 | NT | Up | 21.3 | 221.4 | Low | 10:58:30 - 11:28:30 | -1506 |
| Victoria | 11:13:39 | -10.5 | NT | Down | 22.8 | 217.8 | Low | 10:58:39 - 11:28:39 | -1516 |
| Brewster | 11:13:29 | -9.1 | NT | Up | 21.6 | 221.3 | Low | 10:58:29 - 11:28:29 | -1520 |
| Manson/Chelan | 11:13:30 | -9.4 | NT | Up | 21.9 | 221.0 | Low | 10:58:30 - 11:28:30 | -1531 |
| Entiat | 11:13:29 | -9.6 | NT | Up | 22.1 | 221.0 | Low | 10:58:29 - 11:28:29 | -1542 |
| Wenatchee | 11:13:29 | -9.8 | NT | Up | 22.3 | 221.0 | Low | 10:58:29 - 11:28:29 | -1555 |
| Ellensburg | 11:13:28 | -10.2 | NT | Up | 22.7 | 220.9 | Low | 10:58:28 - 11:28:28 | -1576 |
| Yakima | 11:13:28 | -10.5 | NT | Up | 23.1 | 221.0 | Low | 10:58:28 - 11:28:28 | -1597 |
| Toppenish/White Swan | 11:13:27 | -10.6 | NT | Up | 23.1 | 221.2 | Low | 10:58:27 - 11:28:27 | -1607 |
| Pasco | 11:13:23 | -10.0 | NT | Up | 22.7 | 222.4 | Low | 10:58:23 - 11:28:23 | -1608 |
| PNWRO | 11:13:22 | -10.1 | NT | Up | 22.7 | 222.7 | Low | 10:58:22 - 11:28:22 | -1619 |
| Goldendale | 11:13:26 | -11.2 | NT | Up | 23.8 | 221.0 | Low | 10:58:26 - 11:28:26 | -1637 |
| The Dalles | 11:13:27 | -11.5 | NT | Up | 24.1 | 220.7 | Low | 10:58:27 - 11:28:27 | -1651 |
| Maupin | 11:13:25 | -11.7 | NT | Up | 24.4 | 220.9 | Low | 10:58:25 - 11:28:25 | -1672 |
| Redmond | 11:13:23 | -12.4 | AT | Up | 25.1 | 221.1 | Low | 10:58:23 - 11:28:23 | -1720 |
| Sisters | 11:13:24 | -12.6 | AT | Up | 25.3 | 220.7 | Low | 10:58:24 - 11:28:24 | -1721 |
| Bend | 11:13:23 | -12.6 | AT | Up | 25.3 | 221.0 | Low | 10:58:23 - 11:28:23 | -1732 |
| Oregon Observatory | 11:13:23 | -12.8 | AT | Up | 25.5 | 220.9 | Low | 10:58:23 - 11:28:23 | -1742 |
| La Pine/Gilchrist | 11:13:23 | -13.0 | AT | Up | 25.7 | 220.9 | Low | 10:58:23 - 11:28:23 | -1754 |
| North Lake | 11:13:20 | -13.0 | AT | Up | 25.7 | 221.6 | Low | 10:58:20 - 11:28:20 | -1775 |
| Paisley | 11:13:18 | -13.2 | AT | Up | 26.0 | 222.1 | Low | 10:58:18 - 11:28:18 | -1805 |
| Lakeview | 11:13:16 | -13.4 | AT | Up | 26.3 | 222.5 | Low | 10:58:16 - 11:28:16 | -1833 |
| Klamath Falls | 11:13:20 | -14.2 | AT | Up | 26.9 | 221.1 | Low | 10:58:20 - 11:28:20 | -1838 |
| Cedarville | 11:13:14 | -13.8 | AT | Up | 26.7 | 222.9 | Low | 10:58:14 - 11:28:14 | -1870 |
| Fall River/Burney | 11:13:16 | -14.8 | AT | Up | 27.6 | 221.9 | Low | 10:58:16 - 11:28:16 | -1905 |
| Niwot | 11:12:34 | -5.7 | CT | Up | 19.0 | 236.1 | Really Low | 10:57:34 - 11:27:34 | -1930 |
| SwRI | 11:12:33 | -5.9 | CT | Up | 19.2 | 236.1 | Really Low | 10:57:33 - 11:27:33 | -1937 |
| Susanville | 11:13:13 | -14.8 | AT | Up | 27.7 | 222.8 | Low | 10:58:13 - 11:28:13 | -1939 |
| Gimple | 11:13:13 | -15.1 | AT | Up | 28.0 | 222.7 | Low | 10:58:13 - 11:28:13 | -1957 |
| Greenville | 11:13:13 | -15.2 | AT | Up | 28.1 | 222.6 | Low | 10:58:13 - 11:28:13 | -1957 |
| Quincy | 11:13:12 | -15.3 | AT | Up | 28.2 | 222.7 | Low | 10:58:12 - 11:28:12 | -1970 |
| Portola | 11:13:10 | -15.1 | AT | Up | 28.1 | 223.2 | Low | 10:58:10 - 11:28:10 | -1975 |
| Reno | 11:13:08 | -15.0 | AT | Up | 27.9 | 223.9 | Low | 10:58:08 - 11:28:08 | -1988 |
| Carson City | 11:13:07 | -15.2 | AT | Up | 28.2 | 224.0 | Low | 10:58:07 - 11:28:07 | -2010 |
| Yerington | 11:13:05 | -15.0 | AT | Up | 28.0 | 224.7 | Low | 10:58:05 - 11:28:05 | -2020 |
| Gardnerville | 11:13:07 | -15.3 | AT | Up | 28.3 | 224.2 | Low | 10:58:07 - 11:28:07 | -2026 |
| Hawthorne | 11:13:03 | -15.0 | AT | Up | 28.0 | 225.3 | Low | 10:58:03 - 11:28:03 | -2047 |
| Tonopah | 11:13:03 | -14.4 | AT | Up | 27.5 | 226.8 | Low | 10:58:03 - 11:28:03 | -2076 |
| Lee Vining | 11:13:03 | -15.6 | AT | Up | 28.7 | 225.1 | Low | 10:58:03 - 11:28:03 | -2085 |
| Bishop | 11:13:03 | -15.6 | AT | Up | 28.7 | 226.0 | Low | 10:58:03 - 11:28:03 | -2123 |
| Beatty | 11:13:03 | -14.9 | AT | Up | 28.1 | 227.7 | Low | 10:58:03 - 11:28:03 | -2159 |
| Indian Springs | 11:13:03 | -14.4 | AT | Up | 27.6 | 228.7 | Low | 10:58:03 - 11:28:03 | -2189 |
| Searchlight/Boulder City | 11:12:45 | -14.7 | AT | Up | 27.9 | 229.8 | Low | 10:57:45 - 11:27:45 | -2235 |
| Henderson | 11:13:03 | -14.3 | AT | Up | 27.6 | 229.6 | Low | 10:58:03 - 11:28:03 | -2236 |
| Patrick | 11:12:42 | -14.0 | AT | Up | 27.3 | 230.7 | Low | 10:57:42 - 11:27:42 | -2237 |
| Kingman/Dolan Springs | 11:12:42 | -14.3 | AT | Up | 27.6 | 230.6 | Low | 10:57:42 - 11:27:42 | -2252 |
| Laughlin/Bullhead City | 11:12:43 | -14.6 | AT | Up | 27.9 | 230.2 | Low | 10:57:43 - 11:27:43 | -2256 |
| DCO | 11:12:39 | -13.8 | AT | Up | 27.1 | 231.4 | Low | 10:57:39 - 11:27:39 | -2256 |
| CPSLO | 11:13:03 | -18.3 | Dark | Up | 31.4 | 224.8 | Up | 10:58:03 - 11:28:03 | -2271 |
| Mohave Valley | 11:12:43 | -14.8 | AT | Up | 28.1 | 230.3 | Low | 10:57:43 - 11:27:43 | -2274 |
| Lake Havasu City | 11:12:41 | -14.9 | AT | Up | 28.2 | 230.7 | Low | 10:57:41 - 11:27:41 | -2301 |
| Parker | 11:12:40 | -15.1 | AT | Up | 28.4 | 230.8 | Low | 10:57:40 - 11:27:40 | -2326 |
| George/Scottsdale | 11:12:32 | -13.7 | AT | Up | 27.1 | 233.0 | Low | 10:57:32 - 11:27:32 | -2351 |
| Wildwood | 11:13:03 | -17.8 | AT | Up | 31.1 | 227.2 | Up | 10:58:03 - 11:28:03 | -2360 |
| Idyllwild | 11:12:46 | -16.9 | AT | Up | 30.2 | 229.0 | Up | 10:57:46 - 11:27:46 | -2361 |
| Blythe | 11:12:40 | -15.6 | AT | Up | 28.9 | 230.8 | Low | 10:57:40 - 11:27:40 | -2364 |
| Calipatria | 11:12:41 | -16.5 | AT | Up | 29.8 | 230.2 | Low | 10:57:41 - 11:27:41 | -2401 |
| Yuma | 11:12:37 | -16.2 | AT | Up | 29.5 | 231.2 | Low | 10:57:37 - 11:27:37 | -2430 |
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 500888, (2020/05/18 11:14UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 15.34 120 13Zet Oph 16:37:09.6 -10:34:01 2.6 2.85 122 3Ups Oph 16:27:48.0 -08:22:18 4.2 2.79 124 PPM 231692 16:26:18.5 -11:29:10 8.5 0.39 124 PPM 231701 16:26:55.5 -11:02:42 9.7 0.29 124 500888 16:25:47.1 -11:07:07 15.7 125 Positions are for J2000
Event circumstances last updated at 2019/10/15 22:21:16 UT
Marc W. Buie, Southwest Research Institute