Event between (500882) 13JN64 and star GA0740:06674480 with event index number of 1102187
Geocentric closest approach at 2021/06/11 07:52:11 UTC
J2000 position of star is 17:01:40.8 -15:13:47
Equinox of date position of star is 17:02:52.8 -15:15:32
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 163 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=24.2
[RECON map]
TNO is 39.0 AU from the Sun
and 38.0 AU from the Earth.
The TNO is moving 23.9
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 753 seconds.
The 1-sigma cross-track error in the shadow position is
3176 km.
The sky-plane scale is
27548.1 km/arcsec.
The TNO has an absolute magnitude Hv=8.3
Diameter=131.8 km assuming a 5% albedo -- 5.5 sec chord
Diameter=53.8 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 7:3EEEE
Star training set for 500882, (2021/06/11 07:52UT) Object RA Dec mag sep mel Antares 16:30:43.5 -26:28:40 0.9 13.49 159 35Eta Oph 17:11:36.6 -15:45:00 2.6 2.15 165 PPM 232348 16:57:16.2 -16:50:19 6.3 2.08 163 PPM 232414 16:59:54.9 -14:54:04 6.7 0.81 162 PPM 232499 17:03:33.1 -15:08:25 9.3 0.20 163 500882 17:02:54.3 -15:15:34 15.7 163 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 16.1 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 | 07:52:22 | -16.6 | AT | Down | 24.5 | 183.4 | Low | 07:37:22 - 08:07:22 | 11350 |
| Kelowna | 07:52:22 | -17.0 | AT | Down | 24.9 | 183.3 | Low | 07:37:22 - 08:07:22 | 11332 |
| Peachland | 07:52:23 | -17.1 | AT | Down | 25.0 | 183.0 | Low | 07:37:23 - 08:07:23 | 11325 |
| Summerland | 07:52:21 | -17.3 | AT | Down | 25.1 | 183.1 | Low | 07:37:21 - 08:07:21 | 11319 |
| Penticton | 07:52:22 | -17.4 | AT | Down | 25.2 | 183.2 | Low | 07:37:22 - 08:07:22 | 11316 |
| Oliver | 07:52:21 | -17.7 | AT | Down | 25.5 | 183.2 | Low | 07:37:21 - 08:07:21 | 11299 |
| Anarchist Mountain Observatory | 07:52:20 | -17.9 | AT | Down | 25.7 | 183.4 | Low | 07:37:20 - 08:07:20 | 11293 |
| Tonasket | 07:52:21 | -18.2 | Dark | Down | 26.0 | 183.3 | Low | 07:37:21 - 08:07:21 | 11277 |
| Okanogan | 07:52:21 | -18.5 | Dark | Down | 26.4 | 183.2 | Low | 07:37:21 - 08:07:21 | 11260 |
| Victoria | 07:52:32 | -18.2 | Dark | Down | 26.2 | 179.1 | Low | 07:37:32 - 08:07:32 | 11247 |
| Brewster | 07:52:21 | -18.8 | Dark | Down | 26.6 | 183.0 | Low | 07:37:21 - 08:07:21 | 11245 |
| Manson/Chelan | 07:52:23 | -19.0 | Dark | Down | 26.8 | 182.6 | Low | 07:37:23 - 08:07:23 | 11233 |
| Wenatchee | 07:52:23 | -19.5 | Dark | Down | 27.3 | 182.4 | Low | 07:37:23 - 08:07:23 | 11208 |
| Ellensburg | 07:52:23 | -19.9 | Dark | Down | 27.7 | 182.2 | Low | 07:37:23 - 08:07:23 | 11186 |
| Yakima | 07:52:24 | -20.3 | Dark | Down | 28.2 | 182.2 | Low | 07:37:24 - 08:07:24 | 11165 |
| Toppenish/White Swan | 07:52:23 | -20.5 | Dark | Down | 28.4 | 182.4 | Low | 07:37:23 - 08:07:23 | 11155 |
| Pasco | 07:52:18 | -20.6 | Dark | Down | 28.4 | 183.7 | Low | 07:37:18 - 08:07:18 | 11155 |
| PNWRO | 07:52:18 | -20.9 | Dark | Down | 28.7 | 184.0 | Low | 07:37:18 - 08:07:18 | 11143 |
| Goldendale | 07:52:23 | -21.0 | Dark | Down | 28.9 | 181.9 | Low | 07:37:23 - 08:07:23 | 11123 |
| The Dalles | 07:52:26 | -21.2 | Dark | Down | 29.2 | 181.5 | Low | 07:37:26 - 08:07:26 | 11109 |
| Maupin | 07:52:26 | -21.7 | Dark | Down | 29.6 | 181.7 | Low | 07:37:26 - 08:07:26 | 11087 |
| Redmond | 07:52:25 | -22.6 | Dark | Down | 30.5 | 181.6 | Up | 07:37:25 - 08:07:25 | 11037 |
| Sisters | 07:52:27 | -22.5 | Dark | Down | 30.5 | 181.1 | Up | 07:37:27 - 08:07:27 | 11036 |
| Bend | 07:52:25 | -22.8 | Dark | Down | 30.7 | 181.4 | Up | 07:37:25 - 08:07:25 | 11024 |
| Oregon Observatory | 07:52:26 | -22.9 | Dark | Down | 30.9 | 181.3 | Up | 07:37:26 - 08:07:26 | 11014 |
| La Pine/Gilchrist | 07:52:26 | -23.1 | Dark | Down | 31.1 | 181.2 | Up | 07:37:26 - 08:07:26 | 11002 |
| North Lake | 07:52:24 | -23.6 | Dark | Down | 31.5 | 181.9 | Up | 07:37:24 - 08:07:24 | 10980 |
| Paisley | 07:52:23 | -24.2 | Dark | Down | 32.0 | 182.3 | Up | 07:37:23 - 08:07:23 | 10950 |
| Lakeview | 07:52:23 | -24.7 | Dark | Down | 32.5 | 182.5 | Up | 07:37:23 - 08:07:23 | 10922 |
| Klamath Falls | 07:52:26 | -24.6 | Dark | Down | 32.5 | 180.9 | Up | 07:37:26 - 08:07:26 | 10915 |
| Cedarville | 07:52:22 | -25.3 | Dark | Down | 33.2 | 182.7 | Up | 07:37:22 - 08:07:22 | 10883 |
| Dunrhomin | 07:51:29 | -25.5 | Dark | Down | 32.3 | 199.7 | Up | 07:36:29 - 08:06:29 | 10847 |
| Fall River/Burney | 07:52:25 | -25.8 | Dark | Down | 33.7 | 181.4 | Up | 07:37:25 - 08:07:25 | 10846 |
| Susanville | 07:52:22 | -26.4 | Dark | Down | 34.3 | 182.2 | Up | 07:37:22 - 08:07:22 | 10812 |
| Gimple | 07:52:23 | -26.7 | Dark | Down | 34.6 | 182.0 | Up | 07:37:23 - 08:07:23 | 10793 |
| Greenville | 07:52:23 | -26.7 | Dark | Down | 34.6 | 181.9 | Up | 07:37:23 - 08:07:23 | 10793 |
| Quincy | 07:52:23 | -26.9 | Dark | Down | 34.8 | 181.9 | Up | 07:37:23 - 08:07:23 | 10780 |
| Portola | 07:52:21 | -27.0 | Dark | Down | 34.9 | 182.4 | Up | 07:37:21 - 08:07:21 | 10775 |
| Reno | 07:52:20 | -27.3 | Dark | Down | 35.2 | 183.2 | Up | 07:37:20 - 08:07:20 | 10762 |
| Carson City | 07:52:18 | -27.7 | Dark | Down | 35.5 | 183.2 | Up | 07:37:18 - 08:07:18 | 10739 |
| Yerington | 07:52:17 | -27.9 | Dark | Down | 35.7 | 184.0 | Up | 07:37:17 - 08:07:17 | 10730 |
| Gardnerville | 07:52:19 | -27.9 | Dark | Down | 35.8 | 183.3 | Up | 07:37:19 - 08:07:19 | 10724 |
| Hawthorne | 07:52:14 | -28.4 | Dark | Down | 36.1 | 184.6 | Up | 07:37:14 - 08:07:14 | 10703 |
| Tonopah | 07:52:10 | -28.8 | Dark | Down | 36.5 | 186.3 | Up | 07:37:10 - 08:07:10 | 10680 |
| Lee Vining | 07:52:17 | -28.9 | Dark | Down | 36.7 | 184.1 | Up | 07:37:17 - 08:07:17 | 10664 |
| Bishop | 07:52:13 | -29.5 | Dark | Down | 37.3 | 185.0 | Up | 07:37:13 - 08:07:13 | 10627 |
| Beatty | 07:52:07 | -30.0 | Dark | Down | 37.6 | 187.0 | Up | 07:37:07 - 08:07:07 | 10604 |
| Indian Springs | 07:52:02 | -30.3 | Dark | Down | 37.8 | 188.3 | Up | 07:37:02 - 08:07:02 | 10587 |
| Henderson | 07:52:00 | -30.8 | Dark | Down | 38.2 | 189.2 | Up | 07:37:00 - 08:07:00 | 10552 |
| Patrick | 07:51:56 | -31.3 | Dark | Down | 38.7 | 190.6 | Up | 07:36:56 - 08:06:56 | 10514 |
| Kingman/Dolan Springs | 07:51:57 | -31.6 | Dark | Down | 39.0 | 190.4 | Up | 07:36:57 - 08:06:57 | 10497 |
| Laughlin/Bullhead City | 07:51:58 | -31.6 | Dark | Down | 39.1 | 189.8 | Up | 07:36:58 - 08:06:58 | 10493 |
| Mohave Valley | 07:51:58 | -31.9 | Dark | Down | 39.3 | 189.9 | Up | 07:36:58 - 08:06:58 | 10474 |
| CPSLO | 07:52:21 | -31.5 | Dark | Down | 39.4 | 182.4 | Up | 07:37:21 - 08:07:21 | 10472 |
| Lake Havasu City | 07:51:57 | -32.3 | Dark | Down | 39.7 | 190.2 | Up | 07:36:57 - 08:06:57 | 10447 |
| Parker | 07:51:56 | -32.6 | Dark | Down | 40.0 | 190.3 | Up | 07:36:56 - 08:06:56 | 10422 |
| George/Scottsdale | 07:51:47 | -32.9 | Dark | Down | 40.0 | 193.4 | Up | 07:36:47 - 08:06:47 | 10400 |
| Wildwood | 07:52:12 | -32.8 | Dark | Down | 40.5 | 185.0 | Up | 07:37:12 - 08:07:12 | 10399 |
| Idyllwild | 07:52:05 | -33.1 | Dark | Down | 40.7 | 187.4 | Up | 07:37:05 - 08:07:05 | 10383 |
| Blythe | 07:51:57 | -33.2 | Dark | Down | 40.6 | 190.0 | Up | 07:36:57 - 08:06:57 | 10383 |
| Calipatria | 07:52:01 | -33.7 | Dark | Down | 41.2 | 188.9 | Up | 07:37:01 - 08:07:01 | 10343 |
| Yuma | 07:51:57 | -34.1 | Dark | Down | 41.5 | 190.1 | Up | 07:36:57 - 08:06:57 | 10315 |
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 500882, (2021/06/11 07:52UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 13.49 159 35Eta Oph 17:10:22.7 -15:43:29 2.6 2.15 165 PPM 232348 16:56:02.0 -16:48:22 6.3 2.08 163 PPM 232414 16:58:41.6 -14:52:11 6.7 0.81 162 PPM 232499 17:02:19.7 -15:06:39 9.3 0.20 163 500882 17:01:40.8 -15:13:47 15.7 163 Positions are for J2000
Event circumstances last updated at 2021/01/02 20:11:12 UT
Marc W. Buie, Southwest Research Institute