Event between 13GE138 and star GA0720:05357842 with event index number of 1642872
Geocentric closest approach at 2020/03/17 10:31:22 UTC
J2000 position of star is 14:59:00.6 -17:48:39
Equinox of date position of star is 15:00:08.8 -17:53:26
Stellar brightness G=15.3,
use SENSEUP=128
Star is 52 degrees from the moon.
Moon is 39% illuminated.
TNO apparent brightness V=26.7
[RECON map]
TNO is 45.9 AU from the Sun
and 45.2 AU from the Earth.
The TNO is moving 14.4
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 742 seconds.
The 1-sigma cross-track error in the shadow position is
4135 km.
The sky-plane scale is
32793.7 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=172.2 km assuming a 5% albedo -- 4.2 sec chord
Diameter=70.3 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 13GE138, (2020/03/17 10:31UT) Object RA Dec mag sep mel Antares 16:30:39.0 -26:28:31 0.9 22.60 30 27Bet Lib 15:18:05.8 -09:27:23 2.6 9.49 51 PPM 229408 14:52:59.6 -18:26:15 6.2 1.79 54 PPM 229553 14:59:13.3 -17:26:39 6.9 0.50 53 PPM 229575 14:59:50.2 -17:45:33 8.9 0.15 52 13GE138 15:00:08.8 -17:53:26 15.3 52 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
1.2 sigma about the mid-time.
The median site spacing is 12.0 km
RECON observability=1.0 and success probability=0.5%
| 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 | 10:33:46 | -31.6 | Dark | Down | 21.4 | 169.6 | Low | 10:18:46 - 10:48:46 | 13845 |
| Kelowna | 10:33:44 | -32.0 | Dark | Down | 21.7 | 169.4 | Low | 10:18:44 - 10:48:44 | 13825 |
| Peachland | 10:33:48 | -32.2 | Dark | Down | 21.8 | 169.1 | Low | 10:18:48 - 10:48:48 | 13814 |
| Summerland | 10:33:46 | -32.3 | Dark | Down | 21.9 | 169.2 | Low | 10:18:46 - 10:48:46 | 13809 |
| Penticton | 10:33:46 | -32.3 | Dark | Down | 22.0 | 169.3 | Low | 10:18:46 - 10:48:46 | 13808 |
| Oliver | 10:33:46 | -32.5 | Dark | Down | 22.4 | 169.3 | Low | 10:18:46 - 10:48:46 | 13792 |
| Anarchist Mountain Observatory | 10:33:47 | -32.5 | Dark | Down | 22.6 | 169.5 | Low | 10:18:47 - 10:48:47 | 13788 |
| Tonasket | 10:33:45 | -32.8 | Dark | Down | 22.9 | 169.4 | Low | 10:18:45 - 10:48:45 | 13772 |
| Okanogan | 10:33:46 | -33.1 | Dark | Down | 23.2 | 169.2 | Low | 10:18:46 - 10:48:46 | 13753 |
| Brewster | 10:33:49 | -33.4 | Dark | Down | 23.4 | 169.0 | Low | 10:18:49 - 10:48:49 | 13735 |
| Manson/Chelan | 10:33:50 | -33.7 | Dark | Down | 23.6 | 168.6 | Low | 10:18:50 - 10:48:50 | 13717 |
| Entiat | 10:33:49 | -33.9 | Dark | Down | 23.8 | 168.5 | Low | 10:18:49 - 10:48:49 | 13705 |
| Wenatchee | 10:33:53 | -34.1 | Dark | Down | 24.0 | 168.4 | Low | 10:18:53 - 10:48:53 | 13690 |
| Victoria | 10:34:05 | -34.7 | Dark | Down | 22.5 | 165.4 | Low | 10:19:05 - 10:49:05 | 13676 |
| Ellensburg | 10:33:51 | -34.5 | Dark | Down | 24.4 | 168.1 | Low | 10:18:51 - 10:48:51 | 13665 |
| Pasco | 10:33:44 | -34.3 | Dark | Down | 25.3 | 169.5 | Low | 10:18:44 - 10:48:44 | 13659 |
| PNWRO | 10:33:43 | -34.4 | Dark | Down | 25.6 | 169.7 | Low | 10:18:43 - 10:48:43 | 13651 |
| Yakima | 10:33:52 | -34.8 | Dark | Down | 24.8 | 168.1 | Low | 10:18:52 - 10:48:52 | 13644 |
| Toppenish/White Swan | 10:33:51 | -34.9 | Dark | Down | 25.0 | 168.2 | Low | 10:18:51 - 10:48:51 | 13637 |
| Niwot | 10:32:27 | -29.6 | Dark | Up | 32.0 | 184.1 | Up | 10:17:27 - 10:47:27 | 13621 |
| SwRI | 10:32:29 | -29.7 | Dark | Up | 32.1 | 184.0 | Up | 10:17:29 - 10:47:29 | 13613 |
| Goldendale | 10:33:54 | -35.5 | Dark | Down | 25.5 | 167.7 | Low | 10:18:54 - 10:48:54 | 13599 |
| The Dalles | 10:33:56 | -35.8 | Dark | Down | 25.7 | 167.3 | Low | 10:18:56 - 10:48:56 | 13578 |
| Maupin | 10:33:57 | -36.0 | Dark | Down | 26.1 | 167.4 | Low | 10:18:57 - 10:48:57 | 13558 |
| Redmond | 10:33:56 | -36.7 | Dark | Down | 27.0 | 167.2 | Low | 10:18:56 - 10:48:56 | 13508 |
| Sisters | 10:33:57 | -36.9 | Dark | Down | 26.9 | 166.8 | Low | 10:18:57 - 10:48:57 | 13500 |
| Bend | 10:33:56 | -36.9 | Dark | Down | 27.1 | 167.0 | Low | 10:18:56 - 10:48:56 | 13493 |
| Oregon Observatory | 10:34:02 | -37.1 | Dark | Down | 27.3 | 166.9 | Low | 10:19:02 - 10:49:02 | 13480 |
| La Pine/Gilchrist | 10:33:57 | -37.3 | Dark | Down | 27.5 | 166.8 | Low | 10:18:57 - 10:48:57 | 13467 |
| North Lake | 10:33:53 | -37.3 | Dark | Down | 28.0 | 167.3 | Low | 10:18:53 - 10:48:53 | 13457 |
| Paisley | 10:33:53 | -37.5 | Dark | Down | 28.6 | 167.7 | Low | 10:18:53 - 10:48:53 | 13435 |
| Lakeview | 10:33:52 | -37.7 | Dark | Down | 29.1 | 167.8 | Low | 10:18:52 - 10:48:52 | 13410 |
| Klamath Falls | 10:34:00 | -38.4 | Dark | Down | 28.9 | 166.3 | Low | 10:19:00 - 10:49:00 | 13378 |
| Cedarville | 10:33:50 | -38.0 | Dark | Up | 29.8 | 167.9 | Low | 10:18:50 - 10:48:50 | 13376 |
| Fall River/Burney | 10:33:57 | -39.0 | Dark | Down | 30.1 | 166.6 | Up | 10:18:57 - 10:48:57 | 13317 |
| Susanville | 10:33:53 | -39.0 | Dark | Up | 30.8 | 167.3 | Up | 10:18:53 - 10:48:53 | 13298 |
| Gimple | 10:33:54 | -39.3 | Dark | Up | 31.0 | 167.0 | Up | 10:18:54 - 10:48:54 | 13276 |
| Greenville | 10:33:55 | -39.4 | Dark | Up | 31.0 | 166.9 | Up | 10:18:55 - 10:48:55 | 13274 |
| Portola | 10:33:51 | -39.3 | Dark | Up | 31.4 | 167.4 | Up | 10:18:51 - 10:48:51 | 13266 |
| Reno | 10:33:49 | -39.1 | Dark | Up | 31.8 | 168.0 | Up | 10:18:49 - 10:48:49 | 13266 |
| Quincy | 10:33:55 | -39.5 | Dark | Up | 31.2 | 166.9 | Up | 10:18:55 - 10:48:55 | 13261 |
| Yerington | 10:33:44 | -39.1 | Dark | Up | 32.4 | 168.7 | Up | 10:18:44 - 10:48:44 | 13248 |
| Carson City | 10:33:48 | -39.3 | Dark | Up | 32.1 | 168.0 | Up | 10:18:48 - 10:48:48 | 13244 |
| Tonopah | 10:33:34 | -38.5 | Dark | Up | 33.6 | 170.7 | Up | 10:18:34 - 10:48:34 | 13238 |
| Hawthorne | 10:33:41 | -39.1 | Dark | Up | 33.0 | 169.2 | Up | 10:18:41 - 10:48:41 | 13232 |
| Gardnerville | 10:33:48 | -39.5 | Dark | Up | 32.4 | 168.0 | Up | 10:18:48 - 10:48:48 | 13230 |
| Lee Vining | 10:33:44 | -39.7 | Dark | Up | 33.4 | 168.6 | Up | 10:18:44 - 10:48:44 | 13184 |
| Indian Springs | 10:33:27 | -38.4 | Dark | Up | 35.3 | 172.3 | Up | 10:18:27 - 10:48:27 | 13180 |
| Beatty | 10:33:31 | -38.9 | Dark | Up | 34.8 | 171.1 | Up | 10:18:31 - 10:48:31 | 13174 |
| Bishop | 10:33:39 | -39.6 | Dark | Up | 34.1 | 169.3 | Up | 10:18:39 - 10:48:39 | 13164 |
| Henderson | 10:33:20 | -38.2 | Dark | Up | 35.9 | 173.0 | Up | 10:18:20 - 10:48:20 | 13161 |
| Patrick | 10:33:14 | -37.8 | Dark | Up | 36.6 | 174.3 | Up | 10:18:14 - 10:48:14 | 13147 |
| DCO | 10:33:10 | -37.5 | Dark | Up | 36.9 | 175.1 | Up | 10:18:10 - 10:48:10 | 13144 |
| Kingman/Dolan Springs | 10:33:14 | -38.0 | Dark | Up | 36.8 | 174.0 | Up | 10:18:14 - 10:48:14 | 13128 |
| Searchlight/Boulder City | 10:33:19 | -38.5 | Dark | Up | 36.4 | 173.0 | Up | 10:18:19 - 10:48:19 | 13126 |
| Laughlin/Bullhead City | 10:33:17 | -38.4 | Dark | Up | 36.8 | 173.4 | Up | 10:18:17 - 10:48:17 | 13114 |
| Mohave Valley | 10:33:17 | -38.5 | Dark | Up | 37.0 | 173.4 | Up | 10:18:17 - 10:48:17 | 13095 |
| George/Scottsdale | 10:33:01 | -37.2 | Dark | Up | 38.4 | 176.5 | Up | 10:18:01 - 10:48:01 | 13082 |
| Lake Havasu City | 10:33:16 | -38.6 | Dark | Up | 37.5 | 173.7 | Up | 10:18:16 - 10:48:16 | 13075 |
| Parker | 10:33:15 | -38.7 | Dark | Up | 37.8 | 173.7 | Up | 10:18:15 - 10:48:15 | 13052 |
| Blythe | 10:33:17 | -39.2 | Dark | Up | 38.3 | 173.3 | Up | 10:18:17 - 10:48:17 | 13009 |
| CPSLO | 10:33:51 | -42.3 | Dark | Up | 35.8 | 166.5 | Up | 10:18:51 - 10:48:51 | 12968 |
| Idyllwild | 10:33:30 | -40.6 | Dark | Up | 37.9 | 170.8 | Up | 10:18:30 - 10:48:30 | 12964 |
| Calipatria | 10:33:21 | -40.1 | Dark | Up | 38.7 | 172.1 | Up | 10:18:21 - 10:48:21 | 12951 |
| Yuma | 10:33:16 | -39.7 | Dark | Up | 39.2 | 173.1 | Up | 10:18:16 - 10:48:16 | 12943 |
| Wildwood | 10:33:41 | -41.7 | Dark | Up | 37.3 | 168.6 | Up | 10:18:41 - 10:48:41 | 12939 |
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 13GE138, (2020/03/17 10:31UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.60 30 27Bet Lib 15:17:00.3 -09:22:59 2.6 9.49 51 PPM 229408 14:51:51.3 -18:21:19 6.2 1.79 54 PPM 229553 14:58:05.2 -17:21:51 6.9 0.50 53 PPM 229575 14:58:42.0 -17:40:46 8.9 0.15 52 13GE138 14:59:00.6 -17:48:39 15.3 52 Positions are for J2000
Event circumstances last updated at 2020/03/10 21:09:34 UT
Marc W. Buie, Southwest Research Institute