Event between 20YR3 and star GA1160:00687119 with event index number of 1895961
Geocentric closest approach at 2024/11/26 03:28:17 UTC
J2000 position of star is 04:09:16.0 +27:01:24
Equinox of date position of star is 04:10:33.9 +27:04:39
Stellar brightness G=13.4,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 122 degrees from the moon.
Moon is 22% illuminated.
TNO apparent brightness V=21.3
[RECON map]
TNO is 16.5 AU from the Sun
and 15.6 AU from the Earth.
The TNO is moving 40.3
km/sec on the sky relative to the star, or,
12.9 arcsec/hr.
The 1-sigma error in the time of the event is 73 seconds.
The 1-sigma cross-track error in the shadow position is
4257 km.
The sky-plane scale is
11280.3 km/arcsec.
The TNO has an absolute magnitude Hv=9.2
Diameter=85.1 km assuming a 5% albedo -- 2.1 sec chord
Diameter=34.7 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
Star training set for 20YR3, (2024/11/26 03:28UT) Object RA Dec mag sep mel Aldebaran 04:37:21.1 +16:33:27 0.8 12.19 118 44Zet Per 03:55:42.2 +31:57:20 2.8 5.87 124 44 Tau 04:12:21.2 +26:32:38 5.4 0.65 122 PPM 093246 04:07:35.5 +26:16:38 7.9 1.08 123 PPM 093287 04:10:39.1 +27:10:49 9.3 0.10 122 20YR3 04:10:47.7 +27:05:14 13.4 122 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 20.1 km
RECON observability=1.0 and success probability=7.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 03:29:26 | -30.1 | Dark | Down | 34.3 | 86.6 | Up | 03:22:50 - 03:36:02 | 5773 |
| Clarence Fulton | 03:29:26 | -32.6 | Dark | Down | 37.0 | 90.9 | Up | 03:22:50 - 03:36:02 | 5725 |
| Peachland | 03:29:26 | -32.4 | Dark | Down | 36.7 | 90.2 | Up | 03:22:50 - 03:36:02 | 5711 |
| Kelowna | 03:29:26 | -32.6 | Dark | Down | 36.9 | 90.5 | Up | 03:22:50 - 03:36:02 | 5706 |
| Summerland | 03:29:26 | -32.5 | Dark | Down | 36.8 | 90.2 | Up | 03:22:50 - 03:36:02 | 5698 |
| Penticton | 03:29:26 | -32.6 | Dark | Down | 36.8 | 90.2 | Up | 03:22:50 - 03:36:02 | 5690 |
| Oliver | 03:29:26 | -32.6 | Dark | Down | 36.8 | 89.9 | Up | 03:22:50 - 03:36:02 | 5669 |
| Anarchist Mountain Observatory | 03:29:26 | -32.7 | Dark | Down | 37.0 | 89.9 | Up | 03:22:50 - 03:36:02 | 5652 |
| Tonasket | 03:29:26 | -32.7 | Dark | Down | 36.9 | 89.7 | Up | 03:22:50 - 03:36:02 | 5635 |
| Okanogan | 03:29:26 | -32.6 | Dark | Down | 36.8 | 89.3 | Up | 03:22:50 - 03:36:02 | 5620 |
| Manson/Chelan | 03:29:26 | -32.3 | Dark | Down | 36.4 | 88.5 | Up | 03:22:50 - 03:36:02 | 5613 |
| Brewster | 03:29:26 | -32.5 | Dark | Down | 36.7 | 88.9 | Up | 03:22:50 - 03:36:02 | 5612 |
| Wenatchee | 03:29:26 | -32.2 | Dark | Down | 36.3 | 88.0 | Up | 03:22:50 - 03:36:02 | 5592 |
| Ellensburg | 03:29:26 | -32.1 | Dark | Down | 36.1 | 87.6 | Up | 03:22:50 - 03:36:02 | 5576 |
| Yakima | 03:29:26 | -32.1 | Dark | Down | 36.1 | 87.3 | Up | 03:22:50 - 03:36:02 | 5553 |
| Toppenish/White Swan | 03:29:26 | -32.2 | Dark | Down | 36.2 | 87.2 | Up | 03:22:50 - 03:36:02 | 5533 |
| The Dalles | 03:29:26 | -31.7 | Dark | Down | 35.6 | 86.1 | Up | 03:22:50 - 03:36:02 | 5520 |
| Goldendale | 03:29:26 | -31.9 | Dark | Down | 35.9 | 86.5 | Up | 03:22:50 - 03:36:02 | 5518 |
| Maupin | 03:29:26 | -31.8 | Dark | Down | 35.7 | 85.9 | Up | 03:22:50 - 03:36:02 | 5491 |
| Pasco | 03:29:26 | -33.1 | Dark | Down | 37.1 | 88.0 | Up | 03:22:50 - 03:36:02 | 5475 |
| PNWRO | 03:29:26 | -33.3 | Dark | Down | 37.2 | 88.0 | Up | 03:22:50 - 03:36:02 | 5451 |
| Sisters | 03:29:42 | -31.5 | Dark | Down | 35.3 | 85.0 | Up | 03:23:06 - 03:36:18 | 5425 |
| Redmond | 03:29:41 | -31.8 | Dark | Down | 35.6 | 85.2 | Up | 03:23:05 - 03:36:17 | 5408 |
| Bend | 03:29:42 | -31.7 | Dark | Down | 35.4 | 85.0 | Up | 03:23:06 - 03:36:18 | 5399 |
| Oregon Observatory | 03:29:42 | -31.6 | Dark | Down | 35.3 | 84.8 | Up | 03:23:06 - 03:36:18 | 5392 |
| La Pine/Gilchrist | 03:29:43 | -31.6 | Dark | Down | 35.3 | 84.6 | Up | 03:23:07 - 03:36:19 | 5381 |
| North Lake | 03:29:43 | -32.0 | Dark | Down | 35.7 | 84.7 | Up | 03:23:07 - 03:36:19 | 5327 |
| Chiloquin | 03:29:46 | -31.3 | Dark | Down | 34.9 | 83.6 | Up | 03:23:10 - 03:36:22 | 5319 |
| Klamath Falls | 03:29:46 | -31.4 | Dark | Down | 34.9 | 83.4 | Up | 03:23:10 - 03:36:22 | 5291 |
| Paisley | 03:29:44 | -32.3 | Dark | Down | 35.9 | 84.5 | Up | 03:23:08 - 03:36:20 | 5274 |
| Lakeview | 03:29:45 | -32.4 | Dark | Down | 36.0 | 84.3 | Up | 03:23:09 - 03:36:21 | 5230 |
| Fall River/Burney | 03:29:48 | -31.6 | Dark | Down | 35.1 | 82.8 | Up | 03:23:12 - 03:36:24 | 5192 |
| Cedarville | 03:29:47 | -32.5 | Dark | Down | 36.0 | 83.9 | Up | 03:23:11 - 03:36:23 | 5176 |
| Susanville | 03:29:49 | -32.2 | Dark | Down | 35.6 | 82.8 | Up | 03:23:13 - 03:36:25 | 5116 |
| Greenville | 03:29:50 | -31.9 | Dark | Down | 35.3 | 82.5 | Up | 03:23:14 - 03:36:26 | 5108 |
| Gimple | 03:29:50 | -32.0 | Dark | Down | 35.4 | 82.5 | Up | 03:23:14 - 03:36:26 | 5105 |
| Quincy | 03:29:50 | -31.9 | Dark | Down | 35.3 | 82.3 | Up | 03:23:14 - 03:36:26 | 5093 |
| Portola | 03:29:50 | -32.3 | Dark | Down | 35.6 | 82.5 | Up | 03:23:14 - 03:36:26 | 5064 |
| Reno | 03:29:50 | -32.8 | Dark | Down | 36.1 | 82.7 | Up | 03:23:14 - 03:36:26 | 5017 |
| Carson City | 03:29:51 | -32.8 | Dark | Down | 36.1 | 82.4 | Up | 03:23:15 - 03:36:27 | 4989 |
| Gardnerville | 03:29:52 | -32.8 | Dark | Down | 36.1 | 82.3 | Up | 03:23:16 - 03:36:28 | 4969 |
| Yerington | 03:29:51 | -33.3 | Dark | Down | 36.5 | 82.7 | Up | 03:23:15 - 03:36:27 | 4947 |
| Hawthorne | 03:29:52 | -33.7 | Dark | Down | 36.9 | 82.6 | Up | 03:23:16 - 03:36:28 | 4890 |
| Lee Vining | 03:29:53 | -33.3 | Dark | Down | 36.4 | 81.9 | Up | 03:23:17 - 03:36:29 | 4868 |
| Tonopah | 03:29:51 | -34.8 | Dark | Down | 37.9 | 83.0 | Up | 03:23:15 - 03:36:27 | 4793 |
| Bishop | 03:29:54 | -33.9 | Dark | Down | 36.9 | 81.9 | Up | 03:23:18 - 03:36:30 | 4790 |
| CPSLO | 03:29:59 | -32.0 | Dark | Down | 34.8 | 79.3 | Up | 03:23:23 - 03:36:35 | 4731 |
| Beatty | 03:29:53 | -35.2 | Dark | Down | 38.1 | 82.4 | Up | 03:23:17 - 03:36:29 | 4682 |
| Indian Springs | 03:29:53 | -36.0 | Dark | Down | 39.0 | 82.7 | Up | 03:23:17 - 03:36:29 | 4609 |
| Wildwood | 03:30:00 | -33.6 | Dark | Down | 36.2 | 79.4 | Up | 03:23:24 - 03:36:36 | 4542 |
| Henderson | 03:29:54 | -36.6 | Dark | Down | 39.5 | 82.6 | Up | 03:23:18 - 03:36:30 | 4535 |
| Dunrhomin | 03:29:26 | -43.9 | Dark | Down | 47.3 | 92.2 | Up | 03:22:50 - 03:36:02 | 4474 |
| Laughlin/Bullhead City | 03:29:55 | -36.9 | Dark | Down | 39.7 | 82.1 | Up | 03:23:19 - 03:36:31 | 4446 |
| Patrick | 03:29:54 | -37.5 | Dark | Down | 40.3 | 82.6 | Up | 03:23:18 - 03:36:30 | 4434 |
| Idyllwild | 03:29:59 | -35.1 | Dark | Down | 37.7 | 80.0 | Up | 03:23:23 - 03:36:35 | 4427 |
| Kingman/Dolan Springs | 03:29:54 | -37.3 | Dark | Down | 40.1 | 82.4 | Up | 03:23:18 - 03:36:30 | 4425 |
| Mohave Valley | 03:29:55 | -36.9 | Dark | Down | 39.6 | 81.9 | Up | 03:23:19 - 03:36:31 | 4423 |
| Lake Havasu City | 03:29:56 | -37.1 | Dark | Down | 39.8 | 81.7 | Up | 03:23:20 - 03:36:32 | 4379 |
| Parker | 03:29:56 | -37.1 | Dark | Down | 39.8 | 81.4 | Up | 03:23:20 - 03:36:32 | 4349 |
| Calipatria | 03:29:59 | -36.1 | Dark | Down | 38.6 | 80.0 | Up | 03:23:23 - 03:36:35 | 4321 |
| Blythe | 03:29:57 | -36.9 | Dark | Down | 39.4 | 80.8 | Up | 03:23:21 - 03:36:33 | 4319 |
| Yuma | 03:29:59 | -36.8 | Dark | Down | 39.3 | 80.1 | Up | 03:23:23 - 03:36:35 | 4244 |
| George/Scottsdale | 03:29:55 | -39.1 | Dark | Down | 41.7 | 82.1 | Up | 03:23:19 - 03:36:31 | 4203 |
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 20YR3, (2024/11/26 03:28UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 12.19 118 44Zet Per 03:54:07.9 +31:53:01 2.8 5.87 124 44 Tau 04:10:49.8 +26:28:51 5.4 0.65 122 PPM 093246 04:06:04.5 +26:12:42 7.9 1.08 123 PPM 093287 04:09:07.4 +27:06:58 9.3 0.10 122 20YR3 04:09:16.0 +27:01:24 13.4 122 Positions are for J2000
Event circumstances last updated at 2021/02/28 01:51:30 UT
Marc W. Buie, Southwest Research Institute