Event between (506439) 00YB2 and star GA1100:01439827 with event index number of 1005613
Geocentric closest approach at 2020/11/15 04:41:48 UTC
J2000 position of star is 05:48:12.4 +20:27:19
Equinox of date position of star is 05:49:21.8 +20:27:38
Stellar brightness G=16.5,
use SENSEUP=128
Star is 146 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=22.7
[RECON map]
TNO is 39.0 AU from the Sun
and 38.2 AU from the Earth.
The TNO is moving 20.4
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 357 seconds.
The 1-sigma cross-track error in the shadow position is
1999 km.
The sky-plane scale is
27718.5 km/arcsec.
The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 13.5 sec chord
Diameter=112.4 km assuming a 30% albedo -- 5.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 506439, (2020/11/15 04:42UT) Object RA Dec mag sep mel Betelgeuse 05:56:18.2 +07:24:33 0.4 13.16 142 Alnath 05:27:36.8 +28:37:23 1.6 9.55 149 PPM 121513 05:53:37.6 +19:52:17 6.4 1.14 145 PPM 094877 05:48:53.2 +20:56:47 7.9 0.50 146 PPM 094897 05:49:34.0 +20:34:56 9.4 0.12 146 506439 05:49:26.9 +20:27:40 16.5 146 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
2.5 sigma about the mid-time.
The median site spacing is 17.0 km
RECON observability=0.6 and success probability=0.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 04:44:58 | -42.9 | Dark | Down | 21.6 | 83.4 | Low | 04:29:58 - 04:59:58 | 9513 |
| Summerland | 04:44:59 | -42.9 | Dark | Down | 21.3 | 83.1 | Low | 04:29:59 - 04:59:59 | 9500 |
| Penticton | 04:45:00 | -43.0 | Dark | Down | 21.4 | 83.2 | Low | 04:30:00 - 05:00:00 | 9492 |
| Okanagan Falls | 04:45:00 | -43.0 | Dark | Down | 21.4 | 83.1 | Low | 04:30:00 - 05:00:00 | 9480 |
| Oliver | 04:45:01 | -43.1 | Dark | Down | 21.4 | 83.0 | Low | 04:30:01 - 05:00:01 | 9468 |
| Anarchist Mountain Observatory | 04:45:03 | -43.3 | Dark | Down | 21.5 | 83.1 | Low | 04:30:03 - 05:00:03 | 9451 |
| Oroville | 04:45:02 | -43.3 | Dark | Down | 21.4 | 83.0 | Low | 04:30:02 - 05:00:02 | 9448 |
| Tonasket | 04:45:03 | -43.4 | Dark | Down | 21.4 | 83.0 | Low | 04:30:03 - 05:00:03 | 9432 |
| Okanogan | 04:45:05 | -43.4 | Dark | Down | 21.3 | 82.7 | Low | 04:30:05 - 05:00:05 | 9412 |
| Brewster | 04:45:06 | -43.4 | Dark | Down | 21.1 | 82.5 | Low | 04:30:06 - 05:00:06 | 9398 |
| Manson/Chelan | 04:45:07 | -43.3 | Dark | Down | 20.8 | 82.1 | Low | 04:30:07 - 05:00:07 | 9393 |
| Entiat | 04:45:09 | -43.3 | Dark | Down | 20.7 | 82.0 | Low | 04:30:09 - 05:00:09 | 9380 |
| Wenatchee | 04:45:09 | -43.4 | Dark | Down | 20.6 | 81.8 | Low | 04:30:09 - 05:00:09 | 9364 |
| Ellensburg | 04:45:11 | -43.4 | Dark | Down | 20.4 | 81.5 | Low | 04:30:11 - 05:00:11 | 9341 |
| Yakima | 04:45:14 | -43.5 | Dark | Down | 20.4 | 81.4 | Low | 04:30:14 - 05:00:14 | 9312 |
| Toppenish/White Swan | 04:45:13 | -43.7 | Dark | Down | 20.5 | 81.4 | Low | 04:30:13 - 05:00:13 | 9292 |
| Goldendale | 04:45:16 | -43.7 | Dark | Down | 20.1 | 80.9 | Low | 04:30:16 - 05:00:16 | 9264 |
| The Dalles | 04:45:17 | -43.5 | Dark | Down | 19.8 | 80.6 | Really Low | 04:30:17 - 05:00:17 | 9257 |
| Pasco | 04:45:14 | -44.6 | Dark | Down | 21.3 | 82.3 | Low | 04:30:14 - 05:00:14 | 9249 |
| George/Umatilla | 04:45:15 | -44.6 | Dark | Down | 21.1 | 82.0 | Low | 04:30:15 - 05:00:15 | 9230 |
| PNWRO | 04:45:14 | -44.8 | Dark | Down | 21.4 | 82.3 | Low | 04:30:14 - 05:00:14 | 9224 |
| Maupin | 04:45:19 | -43.7 | Dark | Down | 19.8 | 80.5 | Really Low | 04:30:19 - 05:00:19 | 9224 |
| Madras/Culver | 04:45:22 | -43.9 | Dark | Down | 19.7 | 80.3 | Really Low | 04:30:22 - 05:00:22 | 9184 |
| Sisters | 04:45:22 | -43.7 | Dark | Down | 19.3 | 79.9 | Really Low | 04:30:22 - 05:00:22 | 9172 |
| Redmond | 04:45:22 | -44.0 | Dark | Down | 19.6 | 80.2 | Really Low | 04:30:22 - 05:00:22 | 9159 |
| Bend | 04:45:23 | -43.9 | Dark | Down | 19.5 | 80.0 | Really Low | 04:30:23 - 05:00:23 | 9147 |
| Oregon Observatory | 04:45:24 | -43.9 | Dark | Down | 19.4 | 79.9 | Really Low | 04:30:24 - 05:00:24 | 9138 |
| La Pine/Gilchrist | 04:45:24 | -43.9 | Dark | Down | 19.3 | 79.8 | Really Low | 04:30:24 - 05:00:24 | 9124 |
| North Lake | 04:45:26 | -44.5 | Dark | Down | 19.6 | 80.0 | Really Low | 04:30:26 - 05:00:26 | 9074 |
| Chiloquin | 04:45:30 | -44.0 | Dark | Down | 18.8 | 79.2 | Really Low | 04:30:30 - 05:00:30 | 9050 |
| Paisley | 04:45:29 | -44.9 | Dark | Down | 19.8 | 80.0 | Really Low | 04:30:29 - 05:00:29 | 9022 |
| Klamath Falls | 04:45:31 | -44.2 | Dark | Down | 18.8 | 79.1 | Really Low | 04:30:31 - 05:00:31 | 9021 |
| Tulelake | 04:45:32 | -44.5 | Dark | Down | 19.0 | 79.2 | Really Low | 04:30:32 - 05:00:32 | 8992 |
| Lakeview | 04:45:30 | -45.2 | Dark | Down | 19.9 | 80.0 | Really Low | 04:30:30 - 05:00:30 | 8977 |
| Cedarville | 04:45:33 | -45.5 | Dark | Down | 19.9 | 79.9 | Really Low | 04:30:33 - 05:00:33 | 8920 |
| Fall River/Burney | 04:45:35 | -44.8 | Dark | Down | 18.9 | 79.0 | Really Low | 04:30:35 - 05:00:35 | 8919 |
| Susanville | 04:45:38 | -45.5 | Dark | Down | 19.3 | 79.2 | Really Low | 04:30:38 - 05:00:38 | 8847 |
| Greenville | 04:45:38 | -45.4 | Dark | Down | 19.1 | 78.9 | Really Low | 04:30:38 - 05:00:38 | 8834 |
| Gimple | 04:45:38 | -45.4 | Dark | Down | 19.1 | 79.0 | Really Low | 04:30:38 - 05:00:38 | 8831 |
| Quincy | 04:45:39 | -45.4 | Dark | Down | 19.0 | 78.9 | Really Low | 04:30:39 - 05:00:39 | 8817 |
| Portola | 04:45:39 | -45.8 | Dark | Down | 19.4 | 79.1 | Really Low | 04:30:39 - 05:00:39 | 8793 |
| Reno | 04:45:39 | -46.4 | Dark | Down | 19.8 | 79.4 | Really Low | 04:30:39 - 05:00:39 | 8752 |
| Carson City | 04:45:41 | -46.5 | Dark | Down | 19.8 | 79.3 | Really Low | 04:30:41 - 05:00:41 | 8722 |
| Gardnerville | 04:45:42 | -46.6 | Dark | Down | 19.8 | 79.2 | Really Low | 04:30:42 - 05:00:42 | 8701 |
| Yerington | 04:45:41 | -47.0 | Dark | Down | 20.2 | 79.6 | Low | 04:30:41 - 05:00:41 | 8687 |
| Hawthorne | 04:45:43 | -47.5 | Dark | Down | 20.6 | 79.7 | Low | 04:30:43 - 05:00:43 | 8632 |
| Lee Vining | 04:45:45 | -47.3 | Dark | Down | 20.1 | 79.2 | Low | 04:30:45 - 05:00:45 | 8600 |
| Tonopah | 04:45:43 | -48.7 | Dark | Down | 21.6 | 80.3 | Low | 04:30:43 - 05:00:43 | 8550 |
| Bishop | 04:45:46 | -48.0 | Dark | Down | 20.5 | 79.4 | Low | 04:30:46 - 05:00:46 | 8528 |
| Lone Pine | 04:45:50 | -48.5 | Dark | Down | 20.7 | 79.3 | Low | 04:30:50 - 05:00:50 | 8453 |
| Beatty | 04:45:46 | -49.4 | Dark | Down | 21.7 | 80.1 | Low | 04:30:46 - 05:00:46 | 8438 |
| CPSLO | 04:45:55 | -46.7 | Dark | Down | 18.4 | 77.5 | Really Low | 04:30:55 - 05:00:55 | 8426 |
| Indian Springs | 04:45:47 | -50.3 | Dark | Down | 22.5 | 80.6 | Low | 04:30:47 - 05:00:47 | 8376 |
| Niwot | 04:45:21 | -56.4 | Dark | Down | 31.0 | 88.5 | Up | 04:30:21 - 05:00:21 | 8364 |
| SwRI | 04:45:23 | -56.4 | Dark | Down | 30.9 | 88.3 | Up | 04:30:23 - 05:00:23 | 8358 |
| Henderson | 04:45:49 | -51.0 | Dark | Down | 23.0 | 80.8 | Low | 04:30:49 - 05:00:49 | 8308 |
| Searchlight/Boulder City | 04:45:49 | -51.2 | Dark | Down | 23.0 | 80.6 | Low | 04:30:49 - 05:00:49 | 8256 |
| Wildwood | 04:45:57 | -48.6 | Dark | Down | 19.8 | 78.2 | Really Low | 04:30:57 - 05:00:57 | 8255 |
| Laughlin/Bullhead City | 04:45:50 | -51.6 | Dark | Down | 23.2 | 80.6 | Low | 04:30:50 - 05:00:50 | 8219 |
| Patrick | 04:45:49 | -52.1 | Dark | Down | 23.8 | 81.1 | Low | 04:30:49 - 05:00:49 | 8218 |
| Kingman/Dolan Springs | 04:45:51 | -52.0 | Dark | Down | 23.6 | 80.9 | Low | 04:30:51 - 05:00:51 | 8205 |
| Mohave Valley | 04:45:51 | -51.7 | Dark | Down | 23.2 | 80.5 | Low | 04:30:51 - 05:00:51 | 8195 |
| DCO | 04:45:50 | -52.7 | Dark | Down | 24.3 | 81.3 | Low | 04:30:50 - 05:00:50 | 8169 |
| Idyllwild | 04:45:57 | -50.2 | Dark | Down | 21.2 | 79.0 | Low | 04:30:57 - 05:00:57 | 8162 |
| Lake Havasu City | 04:45:52 | -52.0 | Dark | Down | 23.3 | 80.5 | Low | 04:30:52 - 05:00:52 | 8152 |
| Parker | 04:45:53 | -52.1 | Dark | Down | 23.3 | 80.3 | Low | 04:30:53 - 05:00:53 | 8120 |
| Blythe | 04:45:56 | -52.0 | Dark | Down | 23.0 | 80.0 | Low | 04:30:56 - 05:00:56 | 8083 |
| Calipatria | 04:45:58 | -51.3 | Dark | Down | 22.1 | 79.3 | Low | 04:30:58 - 05:00:58 | 8069 |
| Yuma | 04:45:58 | -52.1 | Dark | Down | 22.8 | 79.6 | Low | 04:30:58 - 05:00:58 | 8001 |
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 506439, (2020/11/15 04:42UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 13.16 142 Alnath 05:26:17.5 +28:36:23 1.6 9.55 149 PPM 121513 05:52:23.4 +19:52:04 6.4 1.14 145 PPM 094877 05:47:38.4 +20:56:26 7.9 0.50 146 PPM 094897 05:48:19.3 +20:34:36 9.4 0.12 146 506439 05:48:12.4 +20:27:19 16.5 146 Positions are for J2000
Event circumstances last updated at 2019/06/08 00:38:06 UT
Marc W. Buie, Southwest Research Institute