Event between (470443) 07XV50 and star GA1220:01424459 with event index number of 1024236
Geocentric closest approach at 2020/12/18 05:13:01 UTC
J2000 position of star is 05:05:18.4 +33:12:45
Equinox of date position of star is 05:06:40.6 +33:14:23
Stellar brightness G=13.6,
use SENSEUP=64
Star is 126 degrees from the moon.
Moon is 15% illuminated.
TNO apparent brightness V=21.1
[RECON map]
TNO is 47.0 AU from the Sun
and 46.0 AU from the Earth.
The TNO is moving 26.0
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 189 seconds.
The 1-sigma cross-track error in the shadow position is
2870 km.
The sky-plane scale is
33368.4 km/arcsec.
The TNO has an absolute magnitude Hv=4.4
Diameter=794.4 km assuming a 5% albedo -- 30.6 sec chord
Diameter=324.3 km assuming a 30% albedo -- 12.5 sec chord
Dynamical classification is SCATEXTD
Star training set for 470443, (2020/12/18 05:13UT) Object RA Dec mag sep mel Aldebaran 04:37:07.6 +16:32:59 0.8 17.97 116 3Iot Aur 04:58:21.7 +33:11:50 2.7 1.74 124 14 Aur 05:16:46.4 +32:42:35 5.2 2.18 128 PPM 069915 05:07:31.2 +33:56:43 7.2 0.73 126 PPM 069882 05:05:31.8 +33:17:23 9.2 0.25 125 470443 05:06:40.7 +33:14:23 13.6 126 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
4.8 sigma about the mid-time.
The median site spacing is 25.8 km
RECON observability=1.0 and success probability=5.8%
| 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 | 05:14:13 | -49.1 | Dark | Down | 62.3 | 116.6 | Up | 04:59:13 - 05:29:13 | -5287 |
| Kelowna | 05:14:14 | -49.1 | Dark | Down | 62.4 | 115.7 | Up | 04:59:14 - 05:29:14 | -5321 |
| Peachland | 05:14:15 | -49.0 | Dark | Down | 62.3 | 115.1 | Up | 04:59:15 - 05:29:15 | -5325 |
| Summerland | 05:14:15 | -49.1 | Dark | Down | 62.4 | 115.0 | Up | 04:59:15 - 05:29:15 | -5342 |
| Penticton | 05:14:15 | -49.2 | Dark | Down | 62.5 | 115.0 | Up | 04:59:15 - 05:29:15 | -5351 |
| Victoria | 05:14:25 | -47.3 | Dark | Down | 60.5 | 108.7 | Up | 04:59:25 - 05:29:25 | -5352 |
| Oliver | 05:14:15 | -49.4 | Dark | Down | 62.6 | 114.4 | Up | 04:59:15 - 05:29:15 | -5385 |
| Anarchist Mountain Observatory | 05:14:15 | -49.6 | Dark | Down | 62.8 | 114.4 | Up | 04:59:15 - 05:29:15 | -5407 |
| Tonasket | 05:14:16 | -49.7 | Dark | Down | 62.9 | 113.7 | Up | 04:59:16 - 05:29:16 | -5435 |
| Okanogan | 05:14:17 | -49.7 | Dark | Down | 62.9 | 112.9 | Up | 04:59:17 - 05:29:17 | -5465 |
| Brewster | 05:14:18 | -49.7 | Dark | Down | 62.9 | 112.2 | Up | 04:59:18 - 05:29:18 | -5487 |
| Manson/Chelan | 05:14:19 | -49.5 | Dark | Down | 62.8 | 111.4 | Up | 04:59:19 - 05:29:19 | -5498 |
| Entiat | 05:14:19 | -49.6 | Dark | Down | 62.8 | 110.9 | Up | 04:59:19 - 05:29:19 | -5518 |
| Wenatchee | 05:14:20 | -49.6 | Dark | Down | 62.8 | 110.3 | Up | 04:59:20 - 05:29:20 | -5540 |
| Ellensburg | 05:14:22 | -49.6 | Dark | Down | 62.8 | 109.3 | Up | 04:59:22 - 05:29:22 | -5575 |
| Yakima | 05:14:23 | -49.8 | Dark | Down | 63.0 | 108.5 | Up | 04:59:23 - 05:29:23 | -5615 |
| Toppenish/White Swan | 05:14:23 | -50.0 | Dark | Down | 63.1 | 108.3 | Up | 04:59:23 - 05:29:23 | -5641 |
| Goldendale | 05:14:25 | -49.9 | Dark | Down | 63.0 | 106.8 | Up | 04:59:25 - 05:29:25 | -5685 |
| Pasco | 05:14:19 | -50.8 | Dark | Down | 64.0 | 109.6 | Up | 04:59:19 - 05:29:19 | -5686 |
| The Dalles | 05:14:26 | -49.7 | Dark | Down | 62.8 | 106.0 | Up | 04:59:26 - 05:29:26 | -5697 |
| PNWRO | 05:14:20 | -51.1 | Dark | Down | 64.2 | 109.4 | Up | 04:59:20 - 05:29:20 | -5716 |
| Maupin | 05:14:27 | -49.9 | Dark | Down | 63.0 | 105.3 | Up | 04:59:27 - 05:29:27 | -5742 |
| Sisters | 05:14:30 | -49.9 | Dark | Down | 62.9 | 103.1 | Up | 04:59:30 - 05:29:30 | -5816 |
| Redmond | 05:14:28 | -50.1 | Dark | Down | 63.2 | 103.5 | Up | 04:59:28 - 05:29:28 | -5829 |
| Bend | 05:14:29 | -50.1 | Dark | Down | 63.2 | 102.9 | Up | 04:59:29 - 05:29:29 | -5847 |
| Oregon Observatory | 05:14:30 | -50.1 | Dark | Down | 63.1 | 102.5 | Up | 04:59:30 - 05:29:30 | -5861 |
| La Pine/Gilchrist | 05:14:30 | -50.1 | Dark | Down | 63.1 | 102.0 | Up | 04:59:30 - 05:29:30 | -5879 |
| North Lake | 05:14:30 | -50.6 | Dark | Down | 63.6 | 101.8 | Up | 04:59:30 - 05:29:30 | -5940 |
| Paisley | 05:14:30 | -51.1 | Dark | Down | 64.0 | 101.0 | Up | 04:59:30 - 05:29:30 | -6005 |
| Klamath Falls | 05:14:34 | -50.3 | Dark | Down | 63.2 | 99.0 | Up | 04:59:34 - 05:29:34 | -6018 |
| Lakeview | 05:14:30 | -51.3 | Dark | Down | 64.2 | 100.2 | Up | 04:59:30 - 05:29:30 | -6062 |
| Cedarville | 05:14:31 | -51.6 | Dark | Down | 64.5 | 99.0 | Up | 04:59:31 - 05:29:31 | -6133 |
| Fall River/Burney | 05:14:35 | -50.9 | Dark | Down | 63.6 | 97.0 | Up | 04:59:35 - 05:29:35 | -6148 |
| Susanville | 05:14:34 | -51.6 | Dark | Down | 64.3 | 96.3 | Up | 04:59:34 - 05:29:34 | -6233 |
| Greenville | 05:14:35 | -51.4 | Dark | Down | 64.1 | 95.5 | Up | 04:59:35 - 05:29:35 | -6253 |
| Gimple | 05:14:35 | -51.5 | Dark | Down | 64.1 | 95.6 | Up | 04:59:35 - 05:29:35 | -6256 |
| Quincy | 05:14:35 | -51.5 | Dark | Down | 64.1 | 95.1 | Up | 04:59:35 - 05:29:35 | -6274 |
| Portola | 05:14:34 | -51.8 | Dark | Down | 64.5 | 95.2 | Up | 04:59:34 - 05:29:34 | -6300 |
| Reno | 05:14:33 | -52.4 | Dark | Down | 65.0 | 95.1 | Up | 04:59:33 - 05:29:33 | -6346 |
| Carson City | 05:14:34 | -52.5 | Dark | Down | 65.0 | 94.4 | Up | 04:59:34 - 05:29:34 | -6384 |
| Gardnerville | 05:14:34 | -52.6 | Dark | Down | 65.1 | 93.9 | Up | 04:59:34 - 05:29:34 | -6410 |
| Yerington | 05:14:31 | -53.0 | Dark | Down | 65.5 | 94.4 | Up | 04:59:31 - 05:29:31 | -6422 |
| Hawthorne | 05:14:31 | -53.5 | Dark | Down | 66.0 | 93.8 | Up | 04:59:31 - 05:29:31 | -6485 |
| Lee Vining | 05:14:34 | -53.3 | Dark | Down | 65.6 | 92.2 | Up | 04:59:34 - 05:29:34 | -6529 |
| Tonopah | 05:14:28 | -54.7 | Dark | Down | 67.1 | 93.8 | Up | 04:59:28 - 05:29:28 | -6572 |
| Bishop | 05:14:32 | -53.9 | Dark | Down | 66.2 | 91.4 | Up | 04:59:32 - 05:29:32 | -6612 |
| Niwot | 05:13:50 | -62.6 | Dark | Down | 75.6 | 113.7 | Up | 04:58:50 - 05:28:50 | -6629 |
| SwRI | 05:13:50 | -62.5 | Dark | Down | 75.6 | 113.2 | Up | 04:58:50 - 05:28:50 | -6638 |
| Beatty | 05:14:28 | -55.3 | Dark | Down | 67.5 | 91.3 | Up | 04:59:28 - 05:29:28 | -6706 |
| CPSLO | 05:14:42 | -52.5 | Dark | Down | 64.4 | 85.7 | Up | 04:59:42 - 05:29:42 | -6759 |
| Indian Springs | 05:14:26 | -56.2 | Dark | Down | 68.4 | 91.2 | Up | 04:59:26 - 05:29:26 | -6769 |
| Henderson | 05:14:24 | -56.9 | Dark | Down | 69.0 | 90.3 | Up | 04:59:24 - 05:29:24 | -6844 |
| Searchlight/Boulder City | 05:14:25 | -57.0 | Dark | Down | 69.0 | 88.8 | Up | 04:59:25 - 05:29:25 | -6906 |
| Patrick | 05:14:21 | -57.9 | Dark | Down | 69.8 | 89.2 | Up | 04:59:21 - 05:29:21 | -6939 |
| Laughlin/Bullhead City | 05:14:23 | -57.4 | Dark | Down | 69.3 | 88.2 | Up | 04:59:23 - 05:29:23 | -6947 |
| Wildwood | 05:14:37 | -54.3 | Dark | Down | 65.9 | 83.9 | Up | 04:59:37 - 05:29:37 | -6947 |
| Kingman/Dolan Springs | 05:14:22 | -57.8 | Dark | Down | 69.7 | 88.5 | Up | 04:59:22 - 05:29:22 | -6958 |
| Mohave Valley | 05:14:24 | -57.4 | Dark | Down | 69.3 | 87.5 | Up | 04:59:24 - 05:29:24 | -6976 |
| DCO | 05:14:20 | -58.5 | Dark | Down | 70.4 | 88.8 | Up | 04:59:20 - 05:29:20 | -6990 |
| Lake Havasu City | 05:14:23 | -57.7 | Dark | Down | 69.4 | 86.5 | Up | 04:59:23 - 05:29:23 | -7025 |
| Idyllwild | 05:14:33 | -55.9 | Dark | Down | 67.4 | 83.7 | Up | 04:59:33 - 05:29:33 | -7039 |
| Parker | 05:14:25 | -57.8 | Dark | Down | 69.5 | 85.6 | Up | 04:59:25 - 05:29:25 | -7063 |
| Blythe | 05:14:26 | -57.7 | Dark | Down | 69.2 | 84.1 | Up | 04:59:26 - 05:29:26 | -7110 |
| Calipatria | 05:14:29 | -57.0 | Dark | Down | 68.3 | 82.6 | Up | 04:59:29 - 05:29:29 | -7137 |
| George/Scottsdale | 05:14:17 | -59.8 | Dark | Down | 71.4 | 85.3 | Up | 04:59:17 - 05:29:17 | -7170 |
| Yuma | 05:14:27 | -57.8 | Dark | Down | 69.0 | 81.7 | Up | 04:59:27 - 05:29:27 | -7207 |
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 470443, (2020/12/18 05:13UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 17.97 116 3Iot Aur 04:56:59.6 +33:09:58 2.7 1.74 124 14 Aur 05:15:24.3 +32:41:15 5.2 2.18 128 PPM 069915 05:06:08.4 +33:55:07 7.2 0.73 126 PPM 069882 05:04:09.5 +33:15:43 9.2 0.25 125 470443 05:05:18.4 +33:12:45 13.6 126 Positions are for J2000
Event circumstances last updated at 2020/12/04 19:33:46 UT
Marc W. Buie, Southwest Research Institute