Event between 16GR206 and star GA0820:04666808 with event index number of 1700110
Geocentric closest approach at 2027/06/10 08:04:31 UTC
J2000 position of star is 15:09:48.4 -06:41:04
Equinox of date position of star is 15:10:54.1 -06:45:42
Stellar brightness G=14.4,
use SENSEUP=128
Star is 73 degrees from the moon.
Moon is 38% illuminated.
TNO apparent brightness V=23.0
[RECON map]
TNO is 19.4 AU from the Sun
and 18.5 AU from the Earth.
The TNO is moving 18.6
km/sec on the sky relative to the star, or,
5.0 arcsec/hr.
The 1-sigma error in the time of the event is 277 seconds.
The 1-sigma cross-track error in the shadow position is
2616 km.
The sky-plane scale is
13431.0 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=85.9 km assuming a 5% albedo -- 3.2 sec chord
Diameter=35.1 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 16GR206, (2027/06/10 08:05UT) Object RA Dec mag sep mel Spica 13:26:38.6 -11:18:13 1.0 26.21 49 27Bet Lib 15:18:29.3 -09:28:57 2.6 3.23 75 19Del Lib 15:02:26.6 -08:37:34 4.9 2.86 71 PPM 198304 15:11:23.6 -06:49:15 8.5 0.05 73 16GR206 15:11:16.0 -06:47:15 14.4 73 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
3.2 sigma about the mid-time.
The median site spacing is 15.0 km
RECON observability=1.0 and success probability=10.1%
| 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 | 08:02:51 | -16.7 | AT | Down | 26.5 | 216.5 | Low | 07:47:51 - 08:17:51 | 3578 |
| Kelowna | 08:02:51 | -17.1 | AT | Down | 26.9 | 216.5 | Low | 07:47:51 - 08:17:51 | 3555 |
| Peachland | 08:02:51 | -17.2 | AT | Down | 27.1 | 216.2 | Low | 07:47:51 - 08:17:51 | 3549 |
| Summerland | 08:02:51 | -17.4 | AT | Down | 27.2 | 216.3 | Low | 07:47:51 - 08:17:51 | 3540 |
| Penticton | 08:02:50 | -17.5 | AT | Down | 27.2 | 216.5 | Low | 07:47:50 - 08:17:50 | 3535 |
| Oliver | 08:02:49 | -17.8 | AT | Down | 27.5 | 216.6 | Low | 07:47:49 - 08:17:49 | 3514 |
| Anarchist Mountain Observatory | 08:02:48 | -18.0 | AT | Down | 27.6 | 216.8 | Low | 07:47:48 - 08:17:48 | 3504 |
| Tonasket | 08:02:48 | -18.3 | Dark | Down | 27.8 | 216.8 | Low | 07:47:48 - 08:17:48 | 3484 |
| Victoria | 08:03:01 | -18.4 | Dark | Down | 29.5 | 212.8 | Low | 07:48:01 - 08:18:01 | 3475 |
| Okanogan | 08:02:47 | -18.6 | Dark | Down | 28.2 | 216.8 | Low | 07:47:47 - 08:17:47 | 3464 |
| Brewster | 08:02:47 | -18.9 | Dark | Down | 28.5 | 216.7 | Low | 07:47:47 - 08:17:47 | 3447 |
| Manson/Chelan | 08:02:48 | -19.1 | Dark | Down | 28.8 | 216.4 | Low | 07:47:48 - 08:17:48 | 3434 |
| Entiat | 08:02:48 | -19.3 | Dark | Down | 29.0 | 216.4 | Low | 07:47:48 - 08:17:48 | 3420 |
| Wenatchee | 08:02:48 | -19.6 | Dark | Down | 29.2 | 216.3 | Low | 07:47:48 - 08:17:48 | 3404 |
| Ellensburg | 08:02:47 | -20.0 | Dark | Down | 29.6 | 216.2 | Low | 07:47:47 - 08:17:47 | 3378 |
| Yakima | 08:02:46 | -20.4 | Dark | Down | 30.0 | 216.4 | Low | 07:47:46 - 08:17:46 | 3351 |
| Toppenish/White Swan | 08:02:45 | -20.6 | Dark | Down | 30.1 | 216.6 | Up | 07:47:45 - 08:17:45 | 3337 |
| Pasco | 08:02:40 | -20.7 | Dark | Down | 29.7 | 217.9 | Low | 07:47:40 - 08:17:40 | 3328 |
| PNWRO | 08:02:39 | -21.0 | Dark | Down | 29.8 | 218.3 | Low | 07:47:39 - 08:17:39 | 3311 |
| Goldendale | 08:02:46 | -21.2 | Dark | Down | 30.7 | 216.4 | Up | 07:47:46 - 08:17:46 | 3301 |
| The Dalles | 08:02:46 | -21.4 | Dark | Down | 31.0 | 216.0 | Up | 07:47:46 - 08:17:46 | 3286 |
| Maupin | 08:02:45 | -21.8 | Dark | Down | 31.3 | 216.3 | Up | 07:47:45 - 08:17:45 | 3258 |
| Sisters | 08:02:45 | -22.7 | Dark | Down | 32.3 | 216.1 | Up | 07:47:45 - 08:17:45 | 3199 |
| Redmond | 08:02:43 | -22.7 | Dark | Down | 32.1 | 216.5 | Up | 07:47:43 - 08:17:43 | 3197 |
| Bend | 08:02:43 | -22.9 | Dark | Down | 32.3 | 216.5 | Up | 07:47:43 - 08:17:43 | 3183 |
| Oregon Observatory | 08:02:43 | -23.1 | Dark | Down | 32.5 | 216.4 | Up | 07:47:43 - 08:17:43 | 3171 |
| La Pine/Gilchrist | 08:02:43 | -23.3 | Dark | Down | 32.7 | 216.4 | Up | 07:47:43 - 08:17:43 | 3157 |
| North Lake | 08:02:40 | -23.8 | Dark | Down | 32.8 | 217.2 | Up | 07:47:40 - 08:17:40 | 3126 |
| Paisley | 08:02:37 | -24.3 | Dark | Down | 33.1 | 217.8 | Up | 07:47:37 - 08:17:37 | 3087 |
| Klamath Falls | 08:02:41 | -24.8 | Dark | Down | 34.0 | 216.7 | Up | 07:47:41 - 08:17:41 | 3054 |
| Lakeview | 08:02:35 | -24.8 | Dark | Down | 33.4 | 218.2 | Up | 07:47:35 - 08:17:35 | 3050 |
| Cedarville | 08:02:33 | -25.5 | Dark | Down | 33.8 | 218.6 | Up | 07:47:33 - 08:17:33 | 3003 |
| Fall River/Burney | 08:02:37 | -25.9 | Dark | Down | 34.8 | 217.5 | Up | 07:47:37 - 08:17:37 | 2968 |
| Susanville | 08:02:32 | -26.6 | Dark | Down | 34.9 | 218.6 | Up | 07:47:32 - 08:17:32 | 2921 |
| Greenville | 08:02:33 | -26.9 | Dark | Down | 35.3 | 218.4 | Up | 07:47:33 - 08:17:33 | 2901 |
| Gimple | 08:02:32 | -26.9 | Dark | Down | 35.3 | 218.5 | Up | 07:47:32 - 08:17:32 | 2900 |
| Quincy | 08:02:33 | -27.1 | Dark | Down | 35.5 | 218.5 | Up | 07:47:33 - 08:17:33 | 2885 |
| Portola | 08:02:31 | -27.2 | Dark | Down | 35.3 | 219.0 | Up | 07:47:31 - 08:17:31 | 2876 |
| Niwot | 08:01:37 | -25.3 | Dark | Down | 26.8 | 233.5 | Low | 07:46:37 - 08:16:37 | 2864 |
| SwRI | 08:01:37 | -25.4 | Dark | Down | 26.9 | 233.4 | Low | 07:46:37 - 08:16:37 | 2856 |
| Reno | 08:02:27 | -27.4 | Dark | Down | 35.2 | 219.8 | Up | 07:47:27 - 08:17:27 | 2855 |
| Carson City | 08:02:26 | -27.8 | Dark | Down | 35.5 | 220.0 | Up | 07:47:26 - 08:17:26 | 2828 |
| Yerington | 08:02:24 | -28.0 | Dark | Down | 35.3 | 220.8 | Up | 07:47:24 - 08:17:24 | 2812 |
| Gardnerville | 08:02:26 | -28.0 | Dark | Down | 35.7 | 220.2 | Up | 07:47:26 - 08:17:26 | 2809 |
| Hawthorne | 08:02:21 | -28.4 | Dark | Down | 35.4 | 221.5 | Up | 07:47:21 - 08:17:21 | 2776 |
| Tonopah | 08:02:14 | -28.9 | Dark | Down | 35.0 | 223.2 | Up | 07:47:14 - 08:17:14 | 2738 |
| Lee Vining | 08:02:21 | -29.0 | Dark | Down | 36.1 | 221.3 | Up | 07:47:21 - 08:17:21 | 2733 |
| Bishop | 08:02:17 | -29.6 | Dark | Down | 36.2 | 222.3 | Up | 07:47:17 - 08:17:17 | 2685 |
| Beatty | 08:02:10 | -30.0 | Dark | Down | 35.6 | 224.2 | Up | 07:47:10 - 08:17:10 | 2646 |
| Indian Springs | 08:02:05 | -30.2 | Dark | Down | 35.3 | 225.4 | Up | 07:47:05 - 08:17:05 | 2618 |
| Henderson | 08:02:01 | -30.7 | Dark | Down | 35.2 | 226.4 | Up | 07:47:01 - 08:17:01 | 2574 |
| Searchlight/Boulder City | 08:01:59 | -31.3 | Dark | Down | 35.6 | 226.7 | Up | 07:46:59 - 08:16:59 | 2528 |
| CPSLO | 08:02:22 | -31.7 | Dark | Down | 38.9 | 221.0 | Up | 07:47:22 - 08:17:22 | 2522 |
| Patrick | 08:01:55 | -31.2 | Dark | Down | 35.0 | 227.7 | Up | 07:46:55 - 08:16:55 | 2521 |
| Kingman/Dolan Springs | 08:01:55 | -31.5 | Dark | Down | 35.3 | 227.7 | Up | 07:46:55 - 08:16:55 | 2503 |
| Laughlin/Bullhead City | 08:01:57 | -31.5 | Dark | Down | 35.6 | 227.2 | Up | 07:46:57 - 08:16:57 | 2502 |
| DCO | 08:01:52 | -31.5 | Dark | Down | 34.8 | 228.6 | Up | 07:46:52 - 08:16:52 | 2494 |
| Mohave Valley | 08:01:57 | -31.8 | Dark | Down | 35.8 | 227.3 | Up | 07:46:57 - 08:16:57 | 2480 |
| Lake Havasu City | 08:01:54 | -32.2 | Dark | Down | 35.9 | 227.8 | Up | 07:46:54 - 08:16:54 | 2446 |
| Wildwood | 08:02:11 | -32.9 | Dark | Down | 38.7 | 223.8 | Up | 07:47:11 - 08:17:11 | 2421 |
| Parker | 08:01:54 | -32.5 | Dark | Down | 36.1 | 228.0 | Up | 07:46:54 - 08:16:54 | 2417 |
| Idyllwild | 08:02:02 | -33.1 | Dark | Down | 37.8 | 225.9 | Up | 07:47:02 - 08:17:02 | 2389 |
| George/Scottsdale | 08:01:43 | -32.7 | Dark | Down | 34.9 | 230.5 | Up | 07:46:43 - 08:16:43 | 2376 |
| Blythe | 08:01:54 | -33.1 | Dark | Down | 36.7 | 228.0 | Up | 07:46:54 - 08:16:54 | 2374 |
| Calipatria | 08:01:57 | -33.7 | Dark | Down | 37.6 | 227.4 | Up | 07:46:57 - 08:16:57 | 2334 |
| Yuma | 08:01:52 | -34.0 | Dark | Down | 37.3 | 228.5 | Up | 07:46:52 - 08:16:52 | 2296 |
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 16GR206, (2027/06/10 08:05UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 26.21 49 27Bet Lib 15:17:00.3 -09:22:59 2.6 3.23 75 19Del Lib 15:00:58.3 -08:31:08 4.9 2.86 71 PPM 198304 15:09:56.0 -06:43:04 8.5 0.05 73 16GR206 15:09:48.4 -06:41:04 14.4 73 Positions are for J2000
Event circumstances last updated at 2020/07/29 00:12:31 UT
Marc W. Buie, Southwest Research Institute