Event between (202421) 05UQ513 and star GA1220:00146057 with event index number of 224275
Geocentric closest approach at 2019/11/23 04:01:35 UTC
J2000 position of star is 00:49:53.4 +33:23:03
Equinox of date position of star is 00:50:53.7 +33:29:03
Stellar brightness G=16.0,
use SENSEUP=128
Star is 147 degrees from the moon.
Moon is 16% illuminated.
TNO apparent brightness V=20.4
[RECON map]
TNO is 48.0 AU from the Sun
and 47.2 AU from the Earth.
The TNO is moving 21.7
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 138 seconds.
The 1-sigma cross-track error in the shadow position is
2649 km.
The sky-plane scale is
34248.9 km/arcsec.
The TNO has an absolute magnitude Hv=3.5
Diameter=1202.3 km assuming a 5% albedo -- 55.3 sec chord
Diameter=490.8 km assuming a 30% albedo -- 22.6 sec chord
Dynamical classification is SCATEXTD
Star training set for 202421, (2019/11/23 04:02UT) Object RA Dec mag sep mel Deneb 20:42:06.6 +45:21:08 1.3 48.26 108 57Gam1And 02:05:07.7 +42:25:27 2.3 17.07 136 69Sig Psc 01:03:54.8 +31:54:38 5.4 3.15 149 PPM 065690 00:52:15.7 +33:39:58 8.2 0.32 147 PPM 065661 00:50:55.1 +33:24:12 9.5 0.09 147 202421 00:50:58.4 +33:29:32 16.0 147 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 15.0 km
RECON observability=1.0 and success probability=2.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Penticton | 04:01:50 | -37.4 | Dark | Down | 72.3 | 152.3 | Up | 03:49:49 - 04:13:52 | -6508 |
| Oroville | 04:01:52 | -37.6 | Dark | Down | 72.9 | 151.8 | Up | 03:49:50 - 04:13:53 | -6554 |
| Tonasket | 04:01:53 | -37.6 | Dark | Down | 73.1 | 151.4 | Up | 03:49:51 - 04:13:54 | -6570 |
| Manson/Chelan | 04:01:58 | -37.4 | Dark | Down | 73.6 | 148.2 | Up | 03:49:56 - 04:13:59 | -6583 |
| Okanogan | 04:01:55 | -37.6 | Dark | Down | 73.3 | 150.5 | Up | 03:49:53 - 04:13:56 | -6584 |
| Brewster | 04:01:55 | -37.6 | Dark | Down | 73.5 | 149.5 | Up | 03:49:54 - 04:13:57 | -6590 |
| Entiat | 04:01:58 | -37.4 | Dark | Down | 73.7 | 147.6 | Up | 03:49:57 - 04:14:00 | -6594 |
| Wenatchee | 04:02:00 | -37.3 | Dark | Down | 73.9 | 146.9 | Up | 03:49:59 - 04:14:02 | -6605 |
| Ellensburg | 04:02:02 | -37.3 | Dark | Down | 74.2 | 145.5 | Up | 03:50:01 - 04:14:04 | -6619 |
| Yakima | 04:02:03 | -37.3 | Dark | Down | 74.5 | 144.6 | Up | 03:50:02 - 04:14:05 | -6645 |
| Toppenish/White Swan | 04:02:04 | -37.5 | Dark | Down | 74.7 | 144.7 | Up | 03:50:02 - 04:14:05 | -6670 |
| The Dalles | 04:02:09 | -37.1 | Dark | Down | 75.0 | 140.8 | Up | 03:50:07 - 04:14:10 | -6674 |
| Goldendale | 04:02:07 | -37.3 | Dark | Down | 75.0 | 142.3 | Up | 03:50:06 - 04:14:09 | -6681 |
| Maupin | 04:02:09 | -37.2 | Dark | Down | 75.4 | 140.1 | Up | 03:50:08 - 04:14:11 | -6708 |
| Sisters | 04:02:15 | -37.0 | Dark | Down | 75.8 | 136.5 | Up | 03:50:13 - 04:14:16 | -6737 |
| Madras/Culver | 04:02:12 | -37.3 | Dark | Down | 75.8 | 138.6 | Up | 03:50:11 - 04:14:14 | -6742 |
| Pasco | 04:02:02 | -38.4 | Dark | Down | 75.3 | 148.0 | Up | 03:50:00 - 04:14:03 | -6752 |
| George/Umatilla | 04:02:03 | -38.3 | Dark | Down | 75.5 | 146.7 | Up | 03:50:01 - 04:14:04 | -6762 |
| Redmond | 04:02:13 | -37.3 | Dark | Down | 76.1 | 137.5 | Up | 03:50:11 - 04:14:14 | -6763 |
| Bend | 04:02:15 | -37.2 | Dark | Down | 76.1 | 136.5 | Up | 03:50:13 - 04:14:16 | -6769 |
| Oregon Observatory | 04:02:16 | -37.2 | Dark | Down | 76.2 | 135.7 | Up | 03:50:15 - 04:14:18 | -6772 |
| La Pine/Gilchrist | 04:02:17 | -37.1 | Dark | Down | 76.3 | 134.9 | Up | 03:50:15 - 04:14:18 | -6782 |
| PNWRO | 04:02:02 | -38.6 | Dark | Down | 75.6 | 148.2 | Up | 03:50:01 - 04:14:04 | -6782 |
| Chiloquin | 04:02:22 | -37.0 | Dark | Down | 76.9 | 130.6 | Up | 03:50:21 - 04:14:24 | -6834 |
| North Lake | 04:02:17 | -37.6 | Dark | Down | 76.9 | 135.4 | Up | 03:50:15 - 04:14:18 | -6849 |
| Klamath Falls | 04:02:23 | -37.1 | Dark | Down | 77.2 | 129.7 | Up | 03:50:22 - 04:14:25 | -6862 |
| Tulelake | 04:02:24 | -37.4 | Dark | Down | 77.5 | 129.6 | Up | 03:50:22 - 04:14:25 | -6900 |
| Paisley | 04:02:18 | -38.0 | Dark | Down | 77.5 | 134.7 | Up | 03:50:17 - 04:14:20 | -6908 |
| Lakeview | 04:02:20 | -38.2 | Dark | Down | 78.0 | 133.7 | Up | 03:50:19 - 04:14:22 | -6955 |
| Fall River/Burney | 04:02:27 | -37.5 | Dark | Down | 78.1 | 126.5 | Up | 03:50:25 - 04:14:28 | -6966 |
| Cedarville | 04:02:22 | -38.4 | Dark | Down | 78.5 | 131.9 | Up | 03:50:21 - 04:14:24 | -7011 |
| Greenville | 04:02:29 | -38.0 | Dark | Down | 78.9 | 124.2 | Up | 03:50:28 - 04:14:31 | -7057 |
| Susanville | 04:02:27 | -38.2 | Dark | Down | 79.0 | 126.2 | Up | 03:50:26 - 04:14:29 | -7057 |
| Gimple | 04:02:29 | -38.0 | Dark | Down | 79.0 | 124.4 | Up | 03:50:28 - 04:14:31 | -7063 |
| Quincy | 04:02:30 | -38.0 | Dark | Down | 79.1 | 123.3 | Up | 03:50:28 - 04:14:31 | -7071 |
| Portola | 04:02:29 | -38.4 | Dark | Down | 79.4 | 124.2 | Up | 03:50:28 - 04:14:31 | -7111 |
| Reno | 04:02:29 | -38.9 | Dark | Down | 80.0 | 124.9 | Up | 03:50:27 - 04:14:30 | -7172 |
| Carson City | 04:02:30 | -38.9 | Dark | Down | 80.2 | 123.3 | Up | 03:50:29 - 04:14:32 | -7199 |
| Gardnerville | 04:02:31 | -39.0 | Dark | Down | 80.4 | 122.3 | Up | 03:50:29 - 04:14:32 | -7219 |
| Yerington | 04:02:29 | -39.4 | Dark | Down | 80.7 | 124.4 | Up | 03:50:28 - 04:14:31 | -7254 |
| Hawthorne | 04:02:30 | -39.9 | Dark | Down | 81.3 | 123.8 | Up | 03:50:28 - 04:14:31 | -7321 |
| Lee Vining | 04:02:32 | -39.6 | Dark | Down | 81.3 | 119.0 | Up | 03:50:31 - 04:14:34 | -7329 |
| CPSLO | 04:02:46 | -38.5 | Dark | Down | 81.0 | 99.4 | Up | 03:50:44 - 04:14:47 | -7414 |
| Bishop | 04:02:34 | -40.2 | Dark | Down | 82.1 | 117.7 | Up | 03:50:32 - 04:14:35 | -7420 |
| Tonopah | 04:02:27 | -41.0 | Dark | Down | 82.5 | 126.4 | Up | 03:50:26 - 04:14:29 | -7448 |
| Lone Pine | 04:02:35 | -40.5 | Dark | Down | 82.7 | 113.7 | Up | 03:50:34 - 04:14:37 | -7498 |
| Beatty | 04:02:31 | -41.5 | Dark | Down | 83.5 | 120.5 | Up | 03:50:30 - 04:14:33 | -7562 |
| Wildwood | 04:02:46 | -40.2 | Dark | Down | 82.9 | 93.3 | Up | 03:50:44 - 04:14:47 | -7643 |
| Indian Springs | 04:02:29 | -42.4 | Dark | Down | 84.4 | 122.8 | Up | 03:50:28 - 04:14:31 | -7658 |
| Henderson | 04:02:30 | -43.0 | Dark | Down | 85.1 | 121.5 | Up | 03:50:28 - 04:14:31 | -7743 |
| Searchlight/Boulder City | 04:02:32 | -43.1 | Dark | Down | 85.4 | 115.8 | Up | 03:50:30 - 04:14:33 | -7791 |
| Idyllwild | 04:02:42 | -41.8 | Dark | Down | 84.4 | 91.8 | Up | 03:50:41 - 04:14:44 | -7799 |
| Laughlin/Bullhead City | 04:02:31 | -43.4 | Dark | Down | 85.8 | 114.0 | Up | 03:50:30 - 04:14:33 | -7836 |
| Mohave Valley | 04:02:33 | -43.5 | Dark | Down | 85.9 | 110.5 | Up | 03:50:31 - 04:14:34 | -7857 |
| Patrick | 04:02:28 | -44.0 | Dark | Down | 86.2 | 121.3 | Up | 03:50:27 - 04:14:30 | -7865 |
| Kingman/Dolan Springs | 04:02:30 | -43.8 | Dark | Down | 86.2 | 117.2 | Up | 03:50:28 - 04:14:31 | -7869 |
| Lake Havasu City | 04:02:34 | -43.7 | Dark | Down | 86.3 | 106.1 | Up | 03:50:32 - 04:14:35 | -7904 |
| Calipatria | 04:02:42 | -42.8 | Dark | Down | 85.4 | 85.3 | Up | 03:50:40 - 04:14:43 | -7926 |
| Parker | 04:02:34 | -43.7 | Dark | Down | 86.4 | 100.9 | Up | 03:50:33 - 04:14:36 | -7933 |
| DCO | 04:02:28 | -44.6 | Dark | Down | 86.9 | 122.5 | Up | 03:50:26 - 04:14:29 | -7935 |
| Blythe | 04:02:36 | -43.5 | Dark | Down | 86.2 | 92.3 | Up | 03:50:34 - 04:14:37 | -7953 |
| Yuma | 04:02:41 | -43.6 | Dark | Down | 86.1 | 78.6 | Up | 03:50:39 - 04:14:42 | -8020 |
| Niwot | 04:01:48 | -49.7 | Dark | Down | 82.3 | 210.5 | Up | 03:49:46 - 04:13:49 | -8026 |
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 202421, (2019/11/23 04:02UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 48.26 108 57Gam1And 02:03:54.0 +42:19:46 2.3 17.07 136 69Sig Psc 01:02:49.1 +31:48:15 5.4 3.15 149 PPM 065690 00:51:10.5 +33:33:29 8.2 0.32 147 PPM 065661 00:49:50.1 +33:17:42 9.5 0.09 147 202421 00:49:53.4 +33:23:03 16.0 147 Positions are for J2000
Event circumstances last updated at 2018/06/12 07:51:13 UT
Marc W. Buie, Southwest Research Institute