Event between (523713) 14JX80 and star GA0920:05182494 with event index number of 1098755
Geocentric closest approach at 2021/03/31 09:37:17 UTC
J2000 position of star is 17:30:55.5 +03:19:31
Equinox of date position of star is 17:31:58.6 +03:18:38
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 41 degrees from the moon.
Moon is 90% illuminated.
TNO apparent brightness V=22.0
[RECON map]
TNO is 36.2 AU from the Sun
and 35.9 AU from the Earth.
The TNO is moving 14.3
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 94 seconds.
The 1-sigma cross-track error in the shadow position is
1764 km.
The sky-plane scale is
26044.3 km/arcsec.
The TNO has an absolute magnitude Hv=6.3
Diameter=337.3 km assuming a 5% albedo -- 23.6 sec chord
Diameter=137.7 km assuming a 30% albedo -- 9.7 sec chord
Dynamical classification is 5:2EEE+5:2EII
Star training set for 523713, (2021/03/31 09:37UT) Object RA Dec mag sep mel Antares 16:30:42.8 -26:28:38 0.9 33.27 23 60Bet Oph 17:44:31.4 +04:33:36 2.8 3.37 44 PPM 164135 17:32:25.4 +02:42:38 6.5 0.61 41 PPM 164079 17:30:34.9 +02:59:31 8.4 0.47 41 PPM 164132 17:32:14.9 +03:34:39 9.2 0.27 41 523713 17:31:59.2 +03:18:38 15.9 41 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
5.0 sigma about the mid-time.
The median site spacing is 14.4 km
RECON observability=1.0 and success probability=17.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Dunrhomin | 09:42:19 | -32.7 | Dark | Up | 42.4 | 132.1 | Up | 09:33:59 - 09:50:40 | -870 |
| Clarence Fulton | 09:43:23 | -31.2 | Dark | Up | 28.6 | 123.5 | Low | 09:35:02 - 09:51:43 | -1015 |
| Kelowna | 09:43:20 | -31.6 | Dark | Up | 28.7 | 123.1 | Low | 09:35:00 - 09:51:41 | -1052 |
| Peachland | 09:43:20 | -31.8 | Dark | Up | 28.6 | 122.8 | Low | 09:35:00 - 09:51:41 | -1075 |
| Penticton | 09:43:18 | -31.9 | Dark | Up | 28.8 | 122.9 | Low | 09:34:58 - 09:51:39 | -1082 |
| Summerland | 09:43:20 | -31.9 | Dark | Up | 28.7 | 122.8 | Low | 09:35:00 - 09:51:41 | -1082 |
| Oliver | 09:43:17 | -32.2 | Dark | Up | 29.0 | 122.7 | Low | 09:34:57 - 09:51:38 | -1109 |
| Anarchist Mountain Observatory | 09:43:17 | -32.3 | Dark | Up | 29.2 | 122.8 | Low | 09:34:57 - 09:51:38 | -1113 |
| Tonasket | 09:43:15 | -32.6 | Dark | Up | 29.3 | 122.6 | Low | 09:34:55 - 09:51:36 | -1139 |
| Okanogan | 09:43:14 | -32.9 | Dark | Up | 29.4 | 122.3 | Low | 09:34:53 - 09:51:34 | -1172 |
| Brewster | 09:43:14 | -33.2 | Dark | Up | 29.5 | 122.0 | Low | 09:34:53 - 09:51:34 | -1203 |
| Manson/Chelan | 09:43:13 | -33.5 | Dark | Up | 29.4 | 121.5 | Low | 09:34:53 - 09:51:34 | -1236 |
| Wenatchee | 09:43:09 | -34.0 | Dark | Up | 29.5 | 121.1 | Low | 09:34:48 - 09:51:29 | -1281 |
| Pasco | 09:43:03 | -34.6 | Dark | Up | 30.8 | 121.7 | Up | 09:34:43 - 09:51:24 | -1308 |
| PNWRO | 09:43:03 | -34.7 | Dark | Up | 31.0 | 121.7 | Up | 09:34:42 - 09:51:23 | -1315 |
| Ellensburg | 09:43:08 | -34.4 | Dark | Up | 29.6 | 120.7 | Low | 09:34:47 - 09:51:28 | -1323 |
| Victoria | 09:43:19 | -34.0 | Dark | Up | 27.2 | 118.8 | Low | 09:34:59 - 09:51:40 | -1337 |
| Yakima | 09:43:06 | -34.8 | Dark | Up | 29.8 | 120.5 | Low | 09:34:46 - 09:51:27 | -1354 |
| Toppenish/White Swan | 09:43:07 | -34.9 | Dark | Up | 30.0 | 120.5 | Low | 09:34:46 - 09:51:27 | -1362 |
| Goldendale | 09:43:03 | -35.5 | Dark | Up | 30.0 | 119.9 | Low | 09:34:43 - 09:51:24 | -1425 |
| The Dalles | 09:43:03 | -35.9 | Dark | Up | 29.9 | 119.4 | Low | 09:34:43 - 09:51:24 | -1460 |
| Maupin | 09:43:00 | -36.2 | Dark | Up | 30.1 | 119.3 | Up | 09:34:39 - 09:51:20 | -1486 |
| Redmond | 09:42:56 | -37.0 | Dark | Up | 30.5 | 118.7 | Up | 09:34:36 - 09:51:17 | -1559 |
| Sisters | 09:42:56 | -37.1 | Dark | Up | 30.3 | 118.4 | Up | 09:34:36 - 09:51:17 | -1577 |
| Bend | 09:42:55 | -37.3 | Dark | Up | 30.5 | 118.5 | Up | 09:34:34 - 09:51:15 | -1582 |
| Oregon Observatory | 09:42:55 | -37.5 | Dark | Up | 30.5 | 118.3 | Up | 09:34:34 - 09:51:15 | -1602 |
| La Pine/Gilchrist | 09:42:54 | -37.7 | Dark | Up | 30.6 | 118.1 | Up | 09:34:33 - 09:51:14 | -1620 |
| North Lake | 09:42:53 | -37.8 | Dark | Up | 31.2 | 118.4 | Up | 09:34:32 - 09:51:13 | -1621 |
| Paisley | 09:42:49 | -38.2 | Dark | Up | 31.7 | 118.4 | Up | 09:34:29 - 09:51:10 | -1643 |
| Lakeview | 09:42:44 | -38.5 | Dark | Up | 32.0 | 118.3 | Up | 09:34:24 - 09:51:05 | -1670 |
| Cedarville | 09:42:42 | -39.0 | Dark | Up | 32.4 | 118.1 | Up | 09:34:21 - 09:51:02 | -1708 |
| George/Scottsdale | 09:41:51 | -41.1 | Dark | Up | 41.8 | 120.3 | Up | 09:33:30 - 09:50:11 | -1711 |
| Klamath Falls | 09:42:48 | -39.0 | Dark | Up | 31.1 | 117.1 | Up | 09:34:27 - 09:51:08 | -1741 |
| Patrick | 09:42:03 | -41.0 | Dark | Up | 39.6 | 119.7 | Up | 09:33:42 - 09:50:23 | -1743 |
| Kingman/Dolan Springs | 09:42:00 | -41.3 | Dark | Up | 39.6 | 119.4 | Up | 09:33:40 - 09:50:21 | -1769 |
| Henderson | 09:42:08 | -41.1 | Dark | Up | 38.5 | 119.2 | Up | 09:33:48 - 09:50:29 | -1775 |
| Tonopah | 09:42:21 | -40.6 | Dark | Up | 36.0 | 118.6 | Up | 09:34:00 - 09:50:41 | -1781 |
| Indian Springs | 09:42:12 | -41.0 | Dark | Up | 37.8 | 118.9 | Up | 09:33:51 - 09:50:32 | -1785 |
| Laughlin/Bullhead City | 09:42:02 | -41.6 | Dark | Up | 39.2 | 118.9 | Up | 09:33:41 - 09:50:22 | -1803 |
| Fall River/Burney | 09:42:42 | -39.9 | Dark | Up | 31.8 | 116.7 | Up | 09:34:21 - 09:51:02 | -1807 |
| Susanville | 09:42:36 | -40.2 | Dark | Up | 32.6 | 117.0 | Up | 09:34:16 - 09:50:57 | -1813 |
| Mohave Valley | 09:42:01 | -41.8 | Dark | Up | 39.3 | 118.7 | Up | 09:33:41 - 09:50:22 | -1820 |
| Lake Havasu City | 09:41:57 | -41.9 | Dark | Up | 39.7 | 118.6 | Up | 09:33:37 - 09:50:18 | -1829 |
| Reno | 09:42:31 | -40.6 | Dark | Up | 33.6 | 117.2 | Up | 09:34:10 - 09:50:51 | -1829 |
| Beatty | 09:42:15 | -41.3 | Dark | Up | 36.9 | 118.2 | Up | 09:33:55 - 09:50:36 | -1830 |
| Yerington | 09:42:29 | -40.7 | Dark | Up | 34.3 | 117.5 | Up | 09:34:09 - 09:50:50 | -1831 |
| Hawthorne | 09:42:26 | -40.9 | Dark | Up | 34.8 | 117.6 | Up | 09:34:06 - 09:50:47 | -1832 |
| Gimple | 09:42:36 | -40.5 | Dark | Up | 32.6 | 116.7 | Up | 09:34:16 - 09:50:57 | -1844 |
| Portola | 09:42:35 | -40.6 | Dark | Up | 33.0 | 116.8 | Up | 09:34:14 - 09:50:55 | -1846 |
| Parker | 09:41:56 | -42.2 | Dark | Up | 39.9 | 118.4 | Up | 09:33:35 - 09:50:16 | -1848 |
| Greenville | 09:42:37 | -40.5 | Dark | Up | 32.5 | 116.6 | Up | 09:34:16 - 09:50:57 | -1849 |
| Carson City | 09:42:30 | -40.9 | Dark | Up | 33.7 | 117.0 | Up | 09:34:09 - 09:50:50 | -1853 |
| Quincy | 09:42:34 | -40.7 | Dark | Up | 32.6 | 116.5 | Up | 09:34:13 - 09:50:54 | -1863 |
| Gardnerville | 09:42:30 | -41.0 | Dark | Up | 33.9 | 116.9 | Up | 09:34:09 - 09:50:50 | -1867 |
| Bishop | 09:42:19 | -41.7 | Dark | Up | 35.5 | 117.1 | Up | 09:33:59 - 09:50:40 | -1897 |
| Lee Vining | 09:42:23 | -41.6 | Dark | Up | 34.7 | 116.8 | Up | 09:34:02 - 09:50:43 | -1899 |
| Blythe | 09:41:53 | -42.7 | Dark | Up | 39.9 | 117.7 | Up | 09:33:32 - 09:50:13 | -1900 |
| Yuma | 09:41:48 | -43.4 | Dark | Up | 40.3 | 117.0 | Up | 09:33:27 - 09:50:08 | -1958 |
| Calipatria | 09:41:51 | -43.6 | Dark | Up | 39.4 | 116.5 | Up | 09:33:31 - 09:50:12 | -1991 |
| Idyllwild | 09:41:57 | -43.8 | Dark | Up | 38.3 | 116.0 | Up | 09:33:36 - 09:50:17 | -2030 |
| Wildwood | 09:42:00 | -44.5 | Dark | Up | 36.7 | 114.7 | Up | 09:33:40 - 09:50:21 | -2123 |
| CPSLO | 09:42:11 | -44.5 | Dark | Up | 34.7 | 113.8 | Up | 09:33:50 - 09:50:31 | -2165 |
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 523713, (2021/03/31 09:37UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 33.27 23 60Bet Oph 17:43:28.3 +04:34:06 2.8 3.37 44 PPM 164135 17:31:21.4 +02:43:30 6.5 0.61 41 PPM 164079 17:29:31.0 +03:00:27 8.4 0.47 41 PPM 164132 17:31:11.3 +03:35:31 9.2 0.27 41 523713 17:30:55.5 +03:19:31 15.9 41 Positions are for J2000
Event circumstances last updated at 2021/01/19 21:41:11 UT
Marc W. Buie, Southwest Research Institute