Event between 11JW31 and star GA0680:34754018 with event index number of 277666
Geocentric closest approach at 2020/07/13 10:43:54 UTC
J2000 position of star is 19:19:13.8 -20:17:18
Equinox of date position of star is 19:20:19.5 -20:15:11
Stellar brightness G=16.5,
use SENSEUP=128
Star is 98 degrees from the moon.
Moon is 46% illuminated.
TNO apparent brightness V=25.5
[RECON map]
TNO is 42.4 AU from the Sun
and 41.4 AU from the Earth.
The TNO is moving 24.5
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 1302 seconds.
The 1-sigma cross-track error in the shadow position is
1620 km.
The sky-plane scale is
30016.0 km/arcsec.
The TNO has an absolute magnitude Hv=9.3
Diameter=83.9 km assuming a 5% albedo -- 3.4 sec chord
Diameter=34.3 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CLASSICAL
Star training set for 11JW31, (2020/07/13 10:44UT) Object RA Dec mag sep mel Antares 16:30:40.2 -26:28:33 0.9 39.28 136 Nunki 18:56:32.2 -26:16:10 2.0 8.14 104 43 Sgr 19:18:50.1 -18:54:53 4.9 1.39 98 PPM 269595 19:19:33.9 -20:24:21 8.3 0.26 98 PPM 269614 19:20:19.3 -20:15:25 9.7 0.03 98 11JW31 19:20:26.4 -20:14:58 16.5 98 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
0.7 sigma about the mid-time.
The median site spacing is 85.8 km
RECON observability=0.1 and success probability=5.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Penticton | 10:41:29 | -10.6 | NT | Up | 10.5 | 220.4 | Really Low | 10:26:29 - 10:56:29 | -110 |
| Oroville | 10:41:27 | -11.1 | NT | Up | 11.0 | 220.6 | Really Low | 10:26:27 - 10:56:27 | -145 |
| Tonasket | 10:41:27 | -11.3 | NT | Up | 11.1 | 220.6 | Really Low | 10:26:27 - 10:56:27 | -158 |
| Okanogan | 10:41:26 | -11.6 | NT | Up | 11.4 | 220.5 | Really Low | 10:26:26 - 10:56:26 | -172 |
| Brewster | 10:41:26 | -11.9 | NT | Up | 11.7 | 220.4 | Really Low | 10:26:26 - 10:56:26 | -182 |
| Manson/Chelan | 10:41:27 | -12.2 | AT | Up | 12.1 | 220.1 | Really Low | 10:26:27 - 10:56:27 | -185 |
| Entiat | 10:41:26 | -12.4 | AT | Up | 12.3 | 220.1 | Really Low | 10:26:26 - 10:56:26 | -195 |
| Wenatchee | 10:41:26 | -12.7 | AT | Up | 12.5 | 220.0 | Really Low | 10:26:26 - 10:56:26 | -207 |
| Ellensburg | 10:41:26 | -13.1 | AT | Up | 12.9 | 219.9 | Really Low | 10:26:26 - 10:56:26 | -225 |
| Yakima | 10:41:25 | -13.4 | AT | Up | 13.2 | 219.9 | Really Low | 10:26:25 - 10:56:25 | -248 |
| Toppenish/White Swan | 10:41:24 | -13.5 | AT | Up | 13.3 | 220.1 | Really Low | 10:26:24 - 10:56:24 | -265 |
| Goldendale | 10:41:24 | -14.1 | AT | Up | 13.9 | 219.8 | Really Low | 10:26:24 - 10:56:24 | -286 |
| The Dalles | 10:41:25 | -14.5 | AT | Up | 14.3 | 219.5 | Really Low | 10:26:25 - 10:56:25 | -290 |
| Pasco | 10:41:21 | -13.1 | AT | Up | 12.9 | 221.2 | Really Low | 10:26:21 - 10:56:21 | -304 |
| Maupin | 10:41:24 | -14.8 | AT | Up | 14.6 | 219.7 | Really Low | 10:26:24 - 10:56:24 | -317 |
| George/Umatilla | 10:41:21 | -13.4 | AT | Up | 13.2 | 221.0 | Really Low | 10:26:21 - 10:56:21 | -318 |
| PNWRO | 10:41:20 | -13.2 | AT | Up | 12.9 | 221.4 | Really Low | 10:26:20 - 10:56:20 | -324 |
| Madras/Culver | 10:41:23 | -15.2 | AT | Up | 15.0 | 219.8 | Really Low | 10:26:23 - 10:56:23 | -349 |
| Sisters | 10:41:23 | -15.7 | AT | Up | 15.5 | 219.4 | Really Low | 10:26:23 - 10:56:23 | -357 |
| Redmond | 10:41:22 | -15.5 | AT | Up | 15.3 | 219.8 | Really Low | 10:26:22 - 10:56:22 | -369 |
| Bend | 10:41:22 | -15.8 | AT | Up | 15.5 | 219.7 | Really Low | 10:26:22 - 10:56:22 | -379 |
| Oregon Observatory | 10:41:22 | -16.0 | AT | Up | 15.7 | 219.6 | Really Low | 10:26:22 - 10:56:22 | -386 |
| La Pine/Gilchrist | 10:41:22 | -16.2 | AT | Up | 15.9 | 219.6 | Really Low | 10:26:22 - 10:56:22 | -397 |
| North Lake | 10:41:20 | -16.3 | AT | Up | 16.0 | 220.2 | Really Low | 10:26:20 - 10:56:20 | -439 |
| Chiloquin | 10:41:21 | -17.2 | AT | Up | 16.9 | 219.5 | Really Low | 10:26:21 - 10:56:21 | -456 |
| Klamath Falls | 10:41:20 | -17.5 | AT | Up | 17.2 | 219.6 | Really Low | 10:26:20 - 10:56:20 | -480 |
| Paisley | 10:41:18 | -16.5 | AT | Up | 16.2 | 220.6 | Really Low | 10:26:18 - 10:56:18 | -484 |
| Tulelake | 10:41:19 | -17.5 | AT | Up | 17.2 | 219.9 | Really Low | 10:26:19 - 10:56:19 | -505 |
| Lakeview | 10:41:17 | -16.9 | AT | Up | 16.5 | 220.8 | Really Low | 10:26:17 - 10:56:17 | -521 |
| Fall River/Burney | 10:41:18 | -18.2 | Dark | Up | 17.9 | 220.2 | Really Low | 10:26:18 - 10:56:18 | -566 |
| Cedarville | 10:41:15 | -17.3 | AT | Up | 16.9 | 221.1 | Really Low | 10:26:15 - 10:56:15 | -568 |
| Susanville | 10:41:15 | -18.4 | Dark | Up | 18.0 | 220.9 | Really Low | 10:26:15 - 10:56:15 | -628 |
| Greenville | 10:41:15 | -18.8 | Dark | Up | 18.4 | 220.7 | Really Low | 10:26:15 - 10:56:15 | -638 |
| Gimple | 10:41:15 | -18.7 | Dark | Up | 18.3 | 220.8 | Really Low | 10:26:15 - 10:56:15 | -641 |
| Quincy | 10:41:15 | -18.9 | Dark | Up | 18.5 | 220.8 | Really Low | 10:26:15 - 10:56:15 | -652 |
| Portola | 10:41:13 | -18.8 | Dark | Up | 18.4 | 221.2 | Really Low | 10:26:13 - 10:56:13 | -674 |
| Reno | 10:41:11 | -18.7 | Dark | Up | 18.2 | 221.8 | Really Low | 10:26:11 - 10:56:11 | -710 |
| Carson City | 10:41:11 | -19.0 | Dark | Up | 18.5 | 221.9 | Really Low | 10:26:11 - 10:56:11 | -735 |
| Gardnerville | 10:41:10 | -19.2 | Dark | Up | 18.7 | 222.0 | Really Low | 10:26:10 - 10:56:10 | -753 |
| Yerington | 10:41:09 | -18.8 | Dark | Up | 18.3 | 222.5 | Really Low | 10:26:09 - 10:56:09 | -767 |
| Hawthorne | 10:41:07 | -18.9 | Dark | Up | 18.4 | 223.0 | Really Low | 10:26:07 - 10:56:07 | -814 |
| Lee Vining | 10:41:07 | -19.6 | Dark | Up | 19.1 | 222.7 | Really Low | 10:26:07 - 10:56:07 | -839 |
| Tonopah | 10:41:03 | -18.6 | Dark | Up | 18.0 | 224.2 | Really Low | 10:26:03 - 10:56:03 | -888 |
| Bishop | 10:41:04 | -19.7 | Dark | Up | 19.1 | 223.4 | Really Low | 10:26:04 - 10:56:04 | -903 |
| Lone Pine | 10:41:02 | -20.1 | Dark | Up | 19.5 | 223.9 | Really Low | 10:26:02 - 10:56:02 | -968 |
| CPSLO | 10:41:07 | -22.5 | Dark | Up | 21.8 | 222.1 | Low | 10:26:07 - 10:56:07 | -985 |
| Beatty | 10:41:00 | -19.2 | Dark | Up | 18.5 | 224.8 | Really Low | 10:26:00 - 10:56:00 | -985 |
| Indian Springs | 10:40:57 | -18.9 | Dark | Up | 18.2 | 225.8 | Really Low | 10:25:57 - 10:55:57 | -1042 |
| Henderson | 10:40:54 | -18.9 | Dark | Up | 18.1 | 226.4 | Really Low | 10:25:54 - 10:55:54 | -1102 |
| Niwot | 10:40:42 | -10.6 | NT | Up | 9.6 | 232.9 | Really Low | 10:25:42 - 10:55:42 | -1104 |
| Wildwood | 10:41:01 | -22.3 | Dark | Up | 21.6 | 224.1 | Low | 10:26:01 - 10:56:01 | -1137 |
| Searchlight/Boulder City | 10:40:53 | -19.3 | Dark | Up | 18.5 | 226.6 | Really Low | 10:25:53 - 10:55:53 | -1147 |
| Laughlin/Bullhead City | 10:40:52 | -19.3 | Dark | Up | 18.5 | 226.9 | Really Low | 10:25:52 - 10:55:52 | -1180 |
| Patrick | 10:40:51 | -18.8 | Dark | Up | 17.9 | 227.4 | Really Low | 10:25:51 - 10:55:51 | -1184 |
| Kingman/Dolan Springs | 10:40:51 | -19.0 | Dark | Up | 18.2 | 227.3 | Really Low | 10:25:51 - 10:55:51 | -1195 |
| Mohave Valley | 10:40:52 | -19.5 | Dark | Up | 18.7 | 227.0 | Really Low | 10:25:52 - 10:55:52 | -1201 |
| Idyllwild | 10:40:55 | -21.6 | Dark | Up | 20.7 | 225.7 | Low | 10:25:55 - 10:55:55 | -1223 |
| DCO | 10:40:48 | -18.6 | Dark | Up | 17.7 | 228.0 | Really Low | 10:25:48 - 10:55:48 | -1230 |
| Lake Havasu City | 10:40:50 | -19.7 | Dark | Up | 18.8 | 227.3 | Really Low | 10:25:50 - 10:55:50 | -1240 |
| Parker | 10:40:50 | -19.9 | Dark | Up | 19.0 | 227.4 | Really Low | 10:25:50 - 10:55:50 | -1268 |
| Blythe | 10:40:50 | -20.5 | Dark | Up | 19.6 | 227.3 | Really Low | 10:25:50 - 10:55:50 | -1299 |
| Calipatria | 10:40:51 | -21.4 | Dark | Up | 20.5 | 226.7 | Low | 10:25:51 - 10:55:51 | -1307 |
| Yuma | 10:40:49 | -21.2 | Dark | Up | 20.2 | 227.5 | Low | 10:25:49 - 10:55:49 | -1370 |
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 11JW31, (2020/07/13 10:44UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 39.28 136 Nunki 18:55:15.9 -26:17:49 2.0 8.14 104 43 Sgr 19:17:38.1 -18:57:11 4.9 1.39 98 PPM 269595 19:18:21.2 -20:26:40 8.3 0.26 98 PPM 269614 19:19:06.7 -20:17:46 9.7 0.03 98 11JW31 19:19:13.8 -20:17:18 16.5 98 Positions are for J2000
Event circumstances last updated at 2018/08/01 17:54:12 UT
Marc W. Buie, Southwest Research Institute