Event between (469506) 03FF128 and star GA0680:07153887 with event index number of 268468
Geocentric closest approach at 2020/06/01 06:10:44 UTC
J2000 position of star is 16:32:00.7 -21:08:48
Equinox of date position of star is 16:33:06.3 -21:11:06
Stellar brightness G=16.2,
use SENSEUP=128
Star is 60 degrees from the moon.
Moon is 74% illuminated.
TNO apparent brightness V=21.6
[RECON map]
TNO is 31.2 AU from the Sun
and 30.1 AU from the Earth.
The TNO is moving 23.5
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 106 seconds.
The 1-sigma cross-track error in the shadow position is
1174 km.
The sky-plane scale is
21859.7 km/arcsec.
The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 11.7 sec chord
Diameter=112.4 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is 3:2E
Star training set for 469506, (2020/06/01 06:11UT) Object RA Dec mag sep mel Antares 16:30:39.8 -26:28:32 0.9 5.32 61 8Bet1Sco 16:06:37.7 -19:51:35 2.6 6.37 54 4Psi Oph 16:25:18.0 -20:05:00 4.2 2.16 58 PPM 265647 16:33:38.6 -20:47:40 8.3 0.41 60 PPM 265653 16:33:55.5 -21:01:57 9.4 0.23 60 PPM 265633 16:33:00.2 -21:04:24 10.2 0.13 60 469506 16:33:13.3 -21:11:20 16.2 61 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 10.0 km
RECON observability=0.7 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Penticton | 06:12:30 | -14.7 | AT | Up | 16.1 | 156.5 | Really Low | 06:03:11 - 06:21:49 | 9999 |
| Oroville | 06:12:30 | -15.3 | AT | Up | 16.7 | 156.6 | Really Low | 06:03:11 - 06:21:49 | 9975 |
| Tonasket | 06:12:31 | -15.5 | AT | Up | 16.9 | 156.5 | Really Low | 06:03:12 - 06:21:50 | 9964 |
| Okanogan | 06:12:31 | -15.8 | AT | Up | 17.2 | 156.4 | Really Low | 06:03:12 - 06:21:50 | 9946 |
| Brewster | 06:12:33 | -16.0 | AT | Up | 17.4 | 156.1 | Really Low | 06:03:14 - 06:21:52 | 9929 |
| Manson/Chelan | 06:12:33 | -16.1 | AT | Up | 17.5 | 155.8 | Really Low | 06:03:14 - 06:21:52 | 9912 |
| Entiat | 06:12:33 | -16.2 | AT | Up | 17.6 | 155.7 | Really Low | 06:03:14 - 06:21:52 | 9900 |
| Wenatchee | 06:12:34 | -16.4 | AT | Up | 17.8 | 155.5 | Really Low | 06:03:15 - 06:21:53 | 9886 |
| Ellensburg | 06:12:35 | -16.8 | AT | Up | 18.2 | 155.3 | Really Low | 06:03:16 - 06:21:54 | 9862 |
| Pasco | 06:12:33 | -17.8 | AT | Up | 19.2 | 156.5 | Really Low | 06:03:14 - 06:21:52 | 9855 |
| PNWRO | 06:12:32 | -18.1 | Dark | Up | 19.5 | 156.7 | Really Low | 06:03:13 - 06:21:51 | 9848 |
| Yakima | 06:12:36 | -17.1 | AT | Up | 18.5 | 155.2 | Really Low | 06:03:17 - 06:21:55 | 9841 |
| Toppenish/White Swan | 06:12:36 | -17.4 | AT | Up | 18.8 | 155.3 | Really Low | 06:03:17 - 06:21:55 | 9834 |
| George/Umatilla | 06:12:34 | -18.1 | Dark | Up | 19.5 | 156.3 | Really Low | 06:03:15 - 06:21:53 | 9834 |
| Niwot | 06:11:53 | -26.8 | Dark | Up | 28.0 | 169.4 | Low | 06:02:34 - 06:21:12 | 9802 |
| Goldendale | 06:12:38 | -17.7 | AT | Up | 19.2 | 154.9 | Really Low | 06:03:19 - 06:21:57 | 9798 |
| The Dalles | 06:12:39 | -17.8 | AT | Up | 19.2 | 154.5 | Really Low | 06:03:20 - 06:21:58 | 9778 |
| Maupin | 06:12:40 | -18.2 | Dark | Up | 19.7 | 154.5 | Really Low | 06:03:21 - 06:21:59 | 9759 |
| Madras/Culver | 06:12:40 | -18.7 | Dark | Up | 20.1 | 154.4 | Low | 06:03:21 - 06:21:59 | 9730 |
| Redmond | 06:12:40 | -19.0 | Dark | Up | 20.4 | 154.3 | Low | 06:03:21 - 06:21:59 | 9710 |
| Sisters | 06:12:41 | -18.9 | Dark | Up | 20.3 | 153.9 | Low | 06:03:22 - 06:22:00 | 9702 |
| Bend | 06:12:41 | -19.2 | Dark | Up | 20.6 | 154.2 | Low | 06:03:22 - 06:22:00 | 9695 |
| Oregon Observatory | 06:12:42 | -19.3 | Dark | Up | 20.7 | 154.0 | Low | 06:03:23 - 06:22:01 | 9683 |
| La Pine/Gilchrist | 06:12:43 | -19.4 | Dark | Up | 20.9 | 153.9 | Low | 06:03:24 - 06:22:02 | 9670 |
| North Lake | 06:12:41 | -20.0 | Dark | Up | 21.5 | 154.4 | Low | 06:03:22 - 06:22:00 | 9660 |
| Paisley | 06:12:41 | -20.6 | Dark | Up | 22.1 | 154.6 | Low | 06:03:22 - 06:22:00 | 9638 |
| Lakeview | 06:12:40 | -21.1 | Dark | Up | 22.6 | 154.7 | Low | 06:03:21 - 06:21:59 | 9614 |
| Chiloquin | 06:12:44 | -20.3 | Dark | Up | 21.8 | 153.4 | Low | 06:03:25 - 06:22:03 | 9601 |
| Klamath Falls | 06:12:44 | -20.6 | Dark | Up | 22.1 | 153.4 | Low | 06:03:25 - 06:22:03 | 9583 |
| Cedarville | 06:12:40 | -21.8 | Dark | Up | 23.2 | 154.8 | Low | 06:03:21 - 06:21:59 | 9581 |
| Tulelake | 06:12:44 | -21.0 | Dark | Up | 22.4 | 153.6 | Low | 06:03:25 - 06:22:03 | 9575 |
| Fall River/Burney | 06:12:45 | -21.8 | Dark | Up | 23.3 | 153.6 | Low | 06:03:26 - 06:22:04 | 9524 |
| Susanville | 06:12:43 | -22.6 | Dark | Up | 24.1 | 154.1 | Low | 06:03:24 - 06:22:02 | 9505 |
| Gimple | 06:12:44 | -22.8 | Dark | Up | 24.3 | 153.9 | Low | 06:03:25 - 06:22:03 | 9484 |
| Greenville | 06:12:44 | -22.8 | Dark | Up | 24.2 | 153.8 | Low | 06:03:25 - 06:22:03 | 9482 |
| Portola | 06:12:43 | -23.2 | Dark | Up | 24.7 | 154.2 | Low | 06:03:24 - 06:22:02 | 9473 |
| Reno | 06:12:41 | -23.7 | Dark | Up | 25.2 | 154.8 | Low | 06:03:22 - 06:22:00 | 9473 |
| Quincy | 06:12:44 | -22.9 | Dark | Up | 24.4 | 153.8 | Low | 06:03:25 - 06:22:03 | 9470 |
| Yerington | 06:12:40 | -24.4 | Dark | Up | 25.9 | 155.3 | Low | 06:03:21 - 06:21:59 | 9455 |
| Carson City | 06:12:42 | -24.0 | Dark | Up | 25.5 | 154.7 | Low | 06:03:23 - 06:22:01 | 9452 |
| Tonopah | 06:12:34 | -25.9 | Dark | Up | 27.3 | 157.0 | Low | 06:03:15 - 06:21:53 | 9443 |
| Hawthorne | 06:12:39 | -25.0 | Dark | Up | 26.5 | 155.7 | Low | 06:03:20 - 06:21:58 | 9439 |
| Gardnerville | 06:12:41 | -24.2 | Dark | Up | 25.7 | 154.7 | Low | 06:03:22 - 06:22:00 | 9438 |
| Lee Vining | 06:12:40 | -25.3 | Dark | Up | 26.8 | 155.1 | Low | 06:03:21 - 06:21:59 | 9392 |
| Indian Springs | 06:12:29 | -27.7 | Dark | Up | 29.2 | 158.2 | Low | 06:03:10 - 06:21:48 | 9385 |
| Beatty | 06:12:34 | -27.1 | Dark | Up | 28.5 | 157.2 | Low | 06:03:15 - 06:21:53 | 9381 |
| Bishop | 06:12:38 | -26.1 | Dark | Up | 27.6 | 155.7 | Low | 06:03:19 - 06:21:57 | 9372 |
| Henderson | 06:12:27 | -28.4 | Dark | Up | 29.9 | 158.8 | Low | 06:03:08 - 06:21:46 | 9367 |
| Patrick | 06:12:25 | -29.4 | Dark | Up | 30.8 | 159.8 | Up | 06:03:06 - 06:21:44 | 9351 |
| DCO | 06:12:22 | -29.9 | Dark | Up | 31.2 | 160.4 | Up | 06:03:03 - 06:21:41 | 9347 |
| Kingman/Dolan Springs | 06:12:25 | -29.5 | Dark | Up | 30.9 | 159.5 | Up | 06:03:06 - 06:21:44 | 9333 |
| Lone Pine | 06:12:38 | -26.9 | Dark | Up | 28.4 | 155.8 | Low | 06:03:19 - 06:21:57 | 9332 |
| Searchlight/Boulder City | 06:12:29 | -29.0 | Dark | Up | 30.4 | 158.7 | Up | 06:03:10 - 06:21:48 | 9331 |
| Laughlin/Bullhead City | 06:12:26 | -29.4 | Dark | Up | 30.8 | 159.0 | Up | 06:03:07 - 06:21:45 | 9320 |
| Mohave Valley | 06:12:27 | -29.6 | Dark | Up | 31.0 | 159.0 | Up | 06:03:08 - 06:21:46 | 9302 |
| Lake Havasu City | 06:12:27 | -30.1 | Dark | Up | 31.5 | 159.1 | Up | 06:03:08 - 06:21:46 | 9281 |
| Parker | 06:12:26 | -30.4 | Dark | Up | 31.8 | 159.1 | Up | 06:03:07 - 06:21:45 | 9258 |
| Blythe | 06:12:29 | -30.8 | Dark | Up | 32.2 | 158.7 | Up | 06:03:10 - 06:21:48 | 9216 |
| CPSLO | 06:12:47 | -27.2 | Dark | Up | 28.7 | 153.0 | Low | 06:03:28 - 06:22:06 | 9183 |
| Idyllwild | 06:12:35 | -30.0 | Dark | Up | 31.5 | 156.5 | Up | 06:03:16 - 06:21:54 | 9175 |
| Calipatria | 06:12:32 | -30.9 | Dark | Up | 32.4 | 157.6 | Up | 06:03:13 - 06:21:51 | 9161 |
| Wildwood | 06:12:41 | -29.0 | Dark | Up | 30.5 | 154.7 | Up | 06:03:22 - 06:22:00 | 9153 |
| Yuma | 06:12:28 | -31.6 | Dark | Up | 33.1 | 158.4 | Up | 06:03:09 - 06:21:47 | 9153 |
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 469506, (2020/06/01 06:11UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 5.32 61 8Bet1Sco 16:05:26.2 -19:48:20 2.6 6.37 54 4Psi Oph 16:24:06.1 -20:02:15 4.2 2.16 58 PPM 265647 16:32:26.2 -20:45:08 8.3 0.41 60 PPM 265653 16:32:43.0 -20:59:26 9.4 0.23 60 PPM 265633 16:31:47.7 -21:01:51 10.2 0.13 60 469506 16:32:00.7 -21:08:48 16.2 60 Positions are for J2000
Event circumstances last updated at 2018/06/05 19:25:40 UT
Marc W. Buie, Southwest Research Institute