Event between 11UD63 and star GA1180:00566380 with event index number of 1097320
Geocentric closest approach at 2021/08/12 09:15:18 UTC
J2000 position of star is 03:39:44.2 +29:17:09
Equinox of date position of star is 03:41:02.0 +29:21:11
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 126 degrees from the moon.
Moon is 16% illuminated.
TNO apparent brightness V=21.3
[RECON map]
TNO is 16.9 AU from the Sun
and 17.0 AU from the Earth.
The TNO is moving 12.3
km/sec on the sky relative to the star, or,
3.6 arcsec/hr.
The 1-sigma error in the time of the event is 84 seconds.
The 1-sigma cross-track error in the shadow position is
836 km.
The sky-plane scale is
12353.1 km/arcsec.
The TNO has an absolute magnitude Hv=8.7
Diameter=106.7 km assuming a 5% albedo -- 8.8 sec chord
Diameter=43.5 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
Star training set for 11UD63, (2021/08/12 09:16UT) Object RA Dec mag sep mel Aldebaran 04:37:09.8 +16:33:04 0.8 18.15 118 44Zet Per 03:55:29.8 +31:56:46 2.8 4.04 123 38Omi Per 03:45:40.8 +32:21:18 3.7 3.16 124 PPM 092661 03:37:59.5 +29:17:39 7.0 0.67 127 PPM 092731 03:42:00.1 +29:31:22 9.5 0.26 126 11UD63 03:41:04.0 +29:21:17 16.9 126 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 7.2 km
RECON observability=1.0 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) |
| Victoria | 09:13:25 | -25.5 | Dark | Down | 28.5 | 76.9 | Low | 09:05:54 - 09:20:57 | 5229 |
| Peachland | 09:14:19 | -23.6 | Dark | Down | 31.2 | 80.3 | Up | 09:06:47 - 09:21:50 | 5138 |
| Summerland | 09:14:19 | -23.7 | Dark | Down | 31.3 | 80.2 | Up | 09:06:47 - 09:21:50 | 5133 |
| Penticton | 09:14:19 | -23.7 | Dark | Down | 31.3 | 80.3 | Up | 09:06:47 - 09:21:50 | 5129 |
| Oliver | 09:14:19 | -24.1 | Dark | Down | 31.3 | 80.1 | Up | 09:06:47 - 09:21:50 | 5128 |
| Kelowna | 09:14:19 | -23.4 | Dark | Down | 31.4 | 80.5 | Up | 09:06:47 - 09:21:50 | 5127 |
| Clarence Fulton | 09:14:19 | -23.0 | Dark | Down | 31.6 | 80.9 | Up | 09:06:47 - 09:21:50 | 5122 |
| Manson/Chelan | 09:13:19 | -25.5 | Dark | Down | 30.5 | 78.7 | Up | 09:05:47 - 09:20:50 | 5094 |
| Ellensburg | 09:13:11 | -26.4 | Dark | Down | 30.0 | 77.9 | Up | 09:05:39 - 09:20:42 | 5093 |
| Wenatchee | 09:13:15 | -26.0 | Dark | Down | 30.3 | 78.3 | Up | 09:05:43 - 09:20:46 | 5092 |
| The Dalles | 09:12:59 | -27.9 | Dark | Down | 29.2 | 76.7 | Low | 09:05:28 - 09:20:31 | 5091 |
| Yakima | 09:13:08 | -26.8 | Dark | Down | 29.9 | 77.7 | Low | 09:05:36 - 09:20:39 | 5086 |
| Brewster | 09:13:20 | -25.2 | Dark | Down | 30.8 | 79.1 | Up | 09:05:49 - 09:20:52 | 5082 |
| Anarchist Mountain Observatory | 09:13:29 | -24.2 | Dark | Down | 31.2 | 80.0 | Up | 09:05:57 - 09:21:00 | 5082 |
| Goldendale | 09:13:01 | -27.6 | Dark | Down | 29.5 | 77.1 | Low | 09:05:30 - 09:20:33 | 5081 |
| Sisters | 09:12:49 | -29.2 | Dark | Down | 28.6 | 75.8 | Low | 09:05:17 - 09:20:20 | 5080 |
| Okanogan | 09:13:23 | -24.9 | Dark | Down | 31.0 | 79.4 | Up | 09:05:51 - 09:20:54 | 5079 |
| Tonasket | 09:13:26 | -24.5 | Dark | Down | 31.1 | 79.7 | Up | 09:05:54 - 09:20:57 | 5079 |
| Maupin | 09:12:56 | -28.3 | Dark | Down | 29.2 | 76.6 | Low | 09:05:24 - 09:20:27 | 5078 |
| Toppenish/White Swan | 09:13:05 | -27.0 | Dark | Down | 30.0 | 77.7 | Low | 09:05:34 - 09:20:37 | 5075 |
| Oregon Observatory | 09:12:45 | -29.6 | Dark | Down | 28.6 | 75.6 | Low | 09:05:13 - 09:20:16 | 5065 |
| Bend | 09:12:46 | -29.4 | Dark | Down | 28.8 | 75.8 | Low | 09:05:15 - 09:20:18 | 5064 |
| La Pine/Gilchrist | 09:12:43 | -29.8 | Dark | Down | 28.5 | 75.5 | Low | 09:05:12 - 09:20:15 | 5063 |
| Redmond | 09:12:48 | -29.2 | Dark | Down | 28.9 | 76.0 | Low | 09:05:17 - 09:20:20 | 5062 |
| Klamath Falls | 09:12:31 | -31.3 | Dark | Down | 27.9 | 74.5 | Low | 09:05:00 - 09:20:03 | 5039 |
| North Lake | 09:12:39 | -30.1 | Dark | Down | 28.8 | 75.6 | Low | 09:05:08 - 09:20:11 | 5027 |
| Pasco | 09:13:04 | -26.8 | Dark | Down | 30.8 | 78.4 | Up | 09:05:33 - 09:20:36 | 5020 |
| PNWRO | 09:13:02 | -27.0 | Dark | Down | 30.9 | 78.4 | Up | 09:05:30 - 09:20:33 | 5005 |
| Paisley | 09:12:34 | -30.5 | Dark | Down | 28.9 | 75.5 | Low | 09:05:03 - 09:20:06 | 4998 |
| Fall River/Burney | 09:12:21 | -32.3 | Dark | Down | 27.8 | 74.1 | Low | 09:04:50 - 09:19:53 | 4991 |
| Lakeview | 09:12:30 | -31.0 | Dark | Down | 28.9 | 75.3 | Low | 09:04:59 - 09:20:02 | 4977 |
| Cedarville | 09:12:24 | -31.6 | Dark | Down | 28.9 | 75.1 | Low | 09:04:53 - 09:19:56 | 4951 |
| Greenville | 09:12:12 | -33.1 | Dark | Down | 27.9 | 73.9 | Low | 09:04:41 - 09:19:44 | 4946 |
| Gimple | 09:12:13 | -33.1 | Dark | Down | 28.0 | 73.9 | Low | 09:04:42 - 09:19:45 | 4942 |
| Susanville | 09:12:15 | -32.7 | Dark | Down | 28.2 | 74.2 | Low | 09:04:44 - 09:19:47 | 4941 |
| Quincy | 09:12:12 | -33.3 | Dark | Down | 27.8 | 73.8 | Low | 09:04:41 - 09:19:44 | 4940 |
| Portola | 09:12:10 | -33.3 | Dark | Down | 28.1 | 74.0 | Low | 09:04:39 - 09:19:42 | 4915 |
| Reno | 09:12:07 | -33.4 | Dark | Down | 28.5 | 74.2 | Low | 09:04:36 - 09:19:39 | 4877 |
| Carson City | 09:12:05 | -33.7 | Dark | Down | 28.5 | 74.0 | Low | 09:04:34 - 09:19:37 | 4865 |
| Gardnerville | 09:12:03 | -33.9 | Dark | Down | 28.4 | 73.9 | Low | 09:04:31 - 09:19:34 | 4855 |
| Yerington | 09:12:03 | -33.7 | Dark | Down | 28.9 | 74.2 | Low | 09:04:31 - 09:19:34 | 4830 |
| Lee Vining | 09:11:54 | -34.7 | Dark | Down | 28.6 | 73.7 | Low | 09:04:23 - 09:19:26 | 4795 |
| Hawthorne | 09:11:59 | -34.0 | Dark | Down | 29.1 | 74.2 | Low | 09:04:28 - 09:19:31 | 4790 |
| CPSLO | 09:11:34 | -37.6 | Dark | Down | 26.5 | 71.6 | Low | 09:04:02 - 09:19:05 | 4773 |
| Bishop | 09:11:50 | -35.0 | Dark | Down | 29.0 | 73.7 | Low | 09:04:18 - 09:19:21 | 4739 |
| Tonopah | 09:11:55 | -34.0 | Dark | Down | 30.1 | 74.7 | Up | 09:04:23 - 09:19:26 | 4707 |
| Beatty | 09:11:45 | -34.9 | Dark | Down | 30.1 | 74.2 | Up | 09:04:14 - 09:19:17 | 4643 |
| Wildwood | 09:11:23 | -38.1 | Dark | Down | 27.7 | 71.9 | Low | 09:03:52 - 09:18:55 | 4627 |
| Indian Springs | 09:11:43 | -34.9 | Dark | Down | 30.8 | 74.5 | Up | 09:04:11 - 09:19:14 | 4577 |
| Henderson | 09:11:38 | -35.1 | Dark | Down | 31.2 | 74.5 | Up | 09:04:07 - 09:19:10 | 4521 |
| Idyllwild | 09:11:20 | -37.9 | Dark | Down | 29.1 | 72.5 | Low | 09:03:49 - 09:18:52 | 4518 |
| Laughlin/Bullhead City | 09:11:31 | -35.8 | Dark | Down | 31.3 | 74.2 | Up | 09:03:59 - 09:19:02 | 4466 |
| Mohave Valley | 09:11:29 | -36.0 | Dark | Down | 31.2 | 74.0 | Up | 09:03:58 - 09:19:01 | 4454 |
| Kingman/Dolan Springs | 09:11:31 | -35.6 | Dark | Down | 31.7 | 74.4 | Up | 09:04:00 - 09:19:03 | 4440 |
| Patrick | 09:11:33 | -35.3 | Dark | Down | 31.9 | 74.7 | Up | 09:04:02 - 09:19:05 | 4439 |
| Calipatria | 09:11:14 | -38.0 | Dark | Down | 29.9 | 72.6 | Low | 09:03:43 - 09:18:46 | 4430 |
| Lake Havasu City | 09:11:26 | -36.3 | Dark | Down | 31.2 | 73.9 | Up | 09:03:54 - 09:18:57 | 4425 |
| Parker | 09:11:23 | -36.6 | Dark | Down | 31.2 | 73.7 | Up | 09:03:52 - 09:18:55 | 4409 |
| Blythe | 09:11:19 | -37.2 | Dark | Down | 30.8 | 73.3 | Up | 09:03:48 - 09:18:51 | 4402 |
| Yuma | 09:11:12 | -38.0 | Dark | Down | 30.4 | 72.7 | Up | 09:03:40 - 09:18:43 | 4364 |
| George/Scottsdale | 09:11:21 | -36.0 | Dark | Down | 33.0 | 74.5 | Up | 09:03:49 - 09:18:52 | 4261 |
| Dunrhomin | 09:12:20 | -27.5 | Dark | Down | 39.7 | 82.5 | Up | 09:04:48 - 09:19:51 | 4175 |
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 11UD63, (2021/08/12 09:16UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 18.15 118 44Zet Per 03:54:07.9 +31:53:01 2.8 4.04 123 38Omi Per 03:44:19.1 +32:17:17 3.7 3.16 124 PPM 092661 03:36:39.9 +29:13:26 7.0 0.67 127 PPM 092731 03:40:40.2 +29:27:16 9.5 0.26 126 11UD63 03:39:44.2 +29:17:09 16.9 126 Positions are for J2000
Event circumstances last updated at 2021/01/24 20:59:25 UT
Marc W. Buie, Southwest Research Institute