Event between (84719) 02VR128 and star GA1180:00609253 with event index number of 364386
Geocentric closest approach at 2020/10/22 04:50:54 UTC
J2000 position of star is 03:48:31.3 +29:02:24
Equinox of date position of star is 03:49:47.7 +29:06:07
Stellar brightness G=15.6,
use SENSEUP=128
Star is 138 degrees from the moon.
Moon is 36% illuminated.
TNO apparent brightness V=26.1
[RECON map]
TNO is 40.3 AU from the Sun
and 39.5 AU from the Earth.
The TNO is moving 21.4
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 99 seconds.
The 1-sigma cross-track error in the shadow position is
1593 km.
The sky-plane scale is
28632.8 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=631.0 km assuming a 5% albedo -- 2.8 sec chord
Diameter=257.6 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 84719, (2020/10/22 04:51UT) Object RA Dec mag sep mel Aldebaran 04:37:07.0 +16:32:58 0.8 16.60 146 44Zet Per 03:55:26.7 +31:56:37 2.8 3.09 140 PPM 068850 03:53:22.7 +31:13:46 6.3 2.26 139 PPM 092964 03:51:27.3 +29:42:22 7.9 0.70 139 PPM 092942 03:50:42.2 +28:41:49 9.4 0.45 138 PPM 092917 03:49:35.8 +28:50:56 10.5 0.26 138 84719 03:49:48.3 +29:06:09 15.6 139 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 20.3 km
RECON observability=1.0 and success probability=11.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 04:53:55 | -36.6 | Dark | Up | 30.3 | 79.1 | Up | 04:45:11 - 05:02:40 | 3937 |
| Clarence Fulton | 04:53:45 | -38.0 | Dark | Down | 33.1 | 83.0 | Up | 04:45:00 - 05:02:29 | 3913 |
| Peachland | 04:53:47 | -38.0 | Dark | Down | 32.8 | 82.4 | Up | 04:45:03 - 05:02:32 | 3894 |
| Kelowna | 04:53:46 | -38.1 | Dark | Down | 33.0 | 82.7 | Up | 04:45:02 - 05:02:31 | 3891 |
| Summerland | 04:53:48 | -38.2 | Dark | Down | 32.8 | 82.4 | Up | 04:45:03 - 05:02:32 | 3880 |
| Penticton | 04:53:48 | -38.3 | Dark | Down | 32.9 | 82.4 | Up | 04:45:03 - 05:02:32 | 3871 |
| Oliver | 04:53:49 | -38.5 | Dark | Down | 32.9 | 82.2 | Up | 04:45:05 - 05:02:34 | 3846 |
| Anarchist Mountain Observatory | 04:53:50 | -38.7 | Dark | Down | 33.0 | 82.2 | Up | 04:45:05 - 05:02:34 | 3828 |
| Tonasket | 04:53:51 | -38.8 | Dark | Down | 32.9 | 82.0 | Up | 04:45:06 - 05:02:35 | 3808 |
| Okanogan | 04:53:52 | -38.9 | Dark | Down | 32.7 | 81.6 | Up | 04:45:08 - 05:02:37 | 3789 |
| Brewster | 04:53:54 | -38.9 | Dark | Down | 32.6 | 81.3 | Up | 04:45:10 - 05:02:39 | 3777 |
| Manson/Chelan | 04:53:55 | -38.8 | Dark | Down | 32.3 | 81.0 | Up | 04:45:10 - 05:02:39 | 3775 |
| Entiat | 04:53:56 | -38.9 | Dark | Down | 32.2 | 80.8 | Up | 04:45:11 - 05:02:40 | 3762 |
| Wenatchee | 04:53:57 | -39.0 | Dark | Down | 32.1 | 80.6 | Up | 04:45:12 - 05:02:41 | 3747 |
| Ellensburg | 04:53:59 | -39.1 | Dark | Up | 31.9 | 80.2 | Up | 04:45:14 - 05:02:43 | 3725 |
| Yakima | 04:54:00 | -39.3 | Dark | Up | 31.8 | 79.9 | Up | 04:45:16 - 05:02:45 | 3696 |
| Toppenish/White Swan | 04:54:01 | -39.5 | Dark | Up | 31.9 | 79.9 | Up | 04:45:16 - 05:02:45 | 3674 |
| Goldendale | 04:54:03 | -39.5 | Dark | Up | 31.5 | 79.3 | Up | 04:45:19 - 05:02:48 | 3649 |
| The Dalles | 04:54:05 | -39.4 | Dark | Up | 31.2 | 78.9 | Up | 04:45:20 - 05:02:49 | 3646 |
| Pasco | 04:54:00 | -40.3 | Dark | Down | 32.7 | 80.6 | Up | 04:45:15 - 05:02:44 | 3617 |
| Maupin | 04:54:06 | -39.6 | Dark | Up | 31.2 | 78.7 | Up | 04:45:21 - 05:02:50 | 3611 |
| PNWRO | 04:54:01 | -40.6 | Dark | Down | 32.9 | 80.6 | Up | 04:45:16 - 05:02:45 | 3591 |
| Sisters | 04:54:10 | -39.8 | Dark | Up | 30.7 | 77.9 | Up | 04:45:25 - 05:02:54 | 3564 |
| Redmond | 04:54:09 | -40.0 | Dark | Up | 31.0 | 78.2 | Up | 04:45:25 - 05:02:54 | 3547 |
| Bend | 04:54:10 | -40.0 | Dark | Up | 30.8 | 77.9 | Up | 04:45:26 - 05:02:55 | 3536 |
| Oregon Observatory | 04:54:11 | -40.0 | Dark | Up | 30.7 | 77.8 | Up | 04:45:26 - 05:02:55 | 3528 |
| La Pine/Gilchrist | 04:54:12 | -40.1 | Dark | Up | 30.6 | 77.6 | Up | 04:45:28 - 05:02:57 | 3515 |
| North Lake | 04:54:13 | -40.7 | Dark | Up | 31.0 | 77.7 | Up | 04:45:28 - 05:02:57 | 3459 |
| Klamath Falls | 04:54:18 | -40.6 | Dark | Up | 30.1 | 76.6 | Up | 04:45:33 - 05:03:02 | 3415 |
| Paisley | 04:54:14 | -41.2 | Dark | Up | 31.1 | 77.6 | Up | 04:45:30 - 05:02:59 | 3402 |
| Lakeview | 04:54:16 | -41.5 | Dark | Up | 31.2 | 77.4 | Up | 04:45:32 - 05:03:01 | 3355 |
| Fall River/Burney | 04:54:22 | -41.3 | Dark | Up | 30.1 | 76.2 | Up | 04:45:37 - 05:03:06 | 3308 |
| Cedarville | 04:54:18 | -42.0 | Dark | Up | 31.1 | 77.1 | Up | 04:45:34 - 05:03:03 | 3296 |
| Susanville | 04:54:23 | -42.1 | Dark | Up | 30.5 | 76.2 | Up | 04:45:39 - 05:03:08 | 3227 |
| Greenville | 04:54:24 | -42.0 | Dark | Up | 30.3 | 75.9 | Up | 04:45:40 - 05:03:09 | 3217 |
| Gimple | 04:54:24 | -42.1 | Dark | Up | 30.3 | 76.0 | Up | 04:45:40 - 05:03:09 | 3214 |
| Quincy | 04:54:25 | -42.1 | Dark | Up | 30.2 | 75.8 | Up | 04:45:40 - 05:03:09 | 3201 |
| Portola | 04:54:25 | -42.5 | Dark | Up | 30.5 | 76.0 | Up | 04:45:40 - 05:03:09 | 3171 |
| Reno | 04:54:25 | -43.1 | Dark | Up | 31.0 | 76.2 | Up | 04:45:40 - 05:03:09 | 3123 |
| Carson City | 04:54:27 | -43.3 | Dark | Up | 30.9 | 76.0 | Up | 04:45:42 - 05:03:11 | 3093 |
| Gardnerville | 04:54:27 | -43.4 | Dark | Up | 30.9 | 75.9 | Up | 04:45:42 - 05:03:11 | 3071 |
| Yerington | 04:54:26 | -43.8 | Dark | Up | 31.3 | 76.2 | Up | 04:45:42 - 05:03:11 | 3051 |
| Hawthorne | 04:54:27 | -44.4 | Dark | Up | 31.6 | 76.2 | Up | 04:45:43 - 05:03:12 | 2990 |
| Lee Vining | 04:54:29 | -44.3 | Dark | Up | 31.1 | 75.6 | Up | 04:45:45 - 05:03:14 | 2964 |
| Tonopah | 04:54:27 | -45.6 | Dark | Up | 32.6 | 76.6 | Up | 04:45:43 - 05:03:12 | 2892 |
| Bishop | 04:54:31 | -45.0 | Dark | Up | 31.5 | 75.6 | Up | 04:45:46 - 05:03:15 | 2884 |
| CPSLO | 04:54:40 | -44.2 | Dark | Up | 29.3 | 73.4 | Low | 04:45:55 - 05:03:24 | 2808 |
| Beatty | 04:54:30 | -46.4 | Dark | Up | 32.7 | 76.1 | Up | 04:45:46 - 05:03:15 | 2775 |
| Indian Springs | 04:54:29 | -47.3 | Dark | Up | 33.4 | 76.5 | Up | 04:45:45 - 05:03:14 | 2701 |
| Henderson | 04:54:30 | -48.1 | Dark | Up | 33.9 | 76.4 | Up | 04:45:45 - 05:03:14 | 2625 |
| Wildwood | 04:54:41 | -46.2 | Dark | Up | 30.5 | 73.7 | Up | 04:45:56 - 05:03:25 | 2614 |
| Niwot | 04:54:01 | -52.1 | Dark | Down | 42.1 | 84.6 | Up | 04:45:16 - 05:02:45 | 2588 |
| SwRI | 04:54:01 | -52.1 | Dark | Down | 42.0 | 84.4 | Up | 04:45:16 - 05:02:45 | 2583 |
| Searchlight/Boulder City | 04:54:32 | -48.4 | Dark | Up | 33.8 | 76.1 | Up | 04:45:47 - 05:03:16 | 2573 |
| Laughlin/Bullhead City | 04:54:32 | -48.8 | Dark | Up | 34.0 | 76.0 | Up | 04:45:47 - 05:03:16 | 2532 |
| Patrick | 04:54:30 | -49.2 | Dark | Up | 34.6 | 76.5 | Up | 04:45:46 - 05:03:15 | 2523 |
| Kingman/Dolan Springs | 04:54:31 | -49.1 | Dark | Up | 34.4 | 76.3 | Up | 04:45:47 - 05:03:16 | 2512 |
| Mohave Valley | 04:54:33 | -48.9 | Dark | Up | 33.9 | 75.9 | Up | 04:45:48 - 05:03:17 | 2508 |
| Idyllwild | 04:54:39 | -47.8 | Dark | Up | 31.9 | 74.2 | Up | 04:45:55 - 05:03:24 | 2500 |
| DCO | 04:54:30 | -49.8 | Dark | Up | 35.1 | 76.6 | Up | 04:45:46 - 05:03:15 | 2466 |
| Lake Havasu City | 04:54:34 | -49.3 | Dark | Up | 34.0 | 75.7 | Up | 04:45:49 - 05:03:18 | 2462 |
| Parker | 04:54:35 | -49.4 | Dark | Up | 34.0 | 75.5 | Up | 04:45:50 - 05:03:19 | 2429 |
| Blythe | 04:54:36 | -49.4 | Dark | Up | 33.6 | 75.0 | Up | 04:45:52 - 05:03:21 | 2396 |
| Calipatria | 04:54:39 | -48.9 | Dark | Up | 32.7 | 74.4 | Up | 04:45:55 - 05:03:24 | 2393 |
| Yuma | 04:54:40 | -49.8 | Dark | Up | 33.3 | 74.4 | Up | 04:45:55 - 05:03:24 | 2315 |
| George/Scottsdale | 04:54:32 | -51.4 | Dark | Up | 35.8 | 76.2 | Up | 04:45:47 - 05:03:16 | 2286 |
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 84719, (2020/10/22 04:51UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 16.60 146 44Zet Per 03:54:07.9 +31:53:01 2.8 3.09 140 PPM 068850 03:52:04.4 +31:10:06 6.3 2.26 139 PPM 092964 03:50:10.0 +29:38:39 7.9 0.70 139 PPM 092942 03:49:25.4 +28:38:05 9.4 0.45 138 PPM 092917 03:48:19.0 +28:47:10 10.5 0.26 138 84719 03:48:31.3 +29:02:24 15.6 138 Positions are for J2000
Event circumstances last updated at 2020/08/28 21:44:38 UT
Marc W. Buie, Southwest Research Institute