Event between (468861) 13LU28 and star GA1360:04404738 with event index number of 1029599
Geocentric closest approach at 2021/01/04 10:31:12 UTC
J2000 position of star is 14:08:58.9 +47:40:24
Equinox of date position of star is 14:09:47.1 +47:34:28
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 51 degrees from the moon.
Moon is 71% illuminated.
TNO apparent brightness V=19.3
[RECON map]
TNO is 11.2 AU from the Sun
and 11.1 AU from the Earth.
The TNO is moving 28.9
km/sec on the sky relative to the star, or,
13.0 arcsec/hr.
The 1-sigma error in the time of the event is 23 seconds.
The 1-sigma cross-track error in the shadow position is
407 km.
The sky-plane scale is
8016.1 km/arcsec.
The TNO has an absolute magnitude Hv=8.4
Diameter=128.8 km assuming a 5% albedo -- 4.5 sec chord
Diameter=52.6 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
Star training set for 468861, (2021/01/04 10:31UT) Object RA Dec mag sep mel Arcturus 14:16:37.2 +19:04:26 0.0 28.53 42 Alkaid 13:48:22.0 +49:12:33 1.9 3.91 50 13 Boo 14:09:04.3 +49:21:34 5.3 1.79 52 PPM 053942 14:08:44.2 +48:06:42 7.4 0.57 52 PPM 053951 14:09:44.6 +47:08:11 9.5 0.44 51 PPM 053953 14:09:59.9 +47:53:00 10.3 0.31 52 468861 14:09:47.1 +47:34:28 15.6 51 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 11.1 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) |
| CPSLO | 10:31:47 | -56.3 | Dark | Up | 37.5 | 53.2 | Up | 10:29:21 - 10:34:12 | 5560 |
| Wildwood | 10:31:40 | -54.9 | Dark | Up | 38.1 | 52.9 | Up | 10:29:14 - 10:34:05 | 5558 |
| Idyllwild | 10:31:34 | -53.4 | Dark | Up | 39.1 | 52.9 | Up | 10:29:08 - 10:33:59 | 5507 |
| Calipatria | 10:31:29 | -52.5 | Dark | Up | 39.5 | 52.7 | Up | 10:29:04 - 10:33:55 | 5491 |
| Yuma | 10:31:27 | -51.8 | Dark | Up | 39.9 | 52.5 | Up | 10:29:01 - 10:33:52 | 5476 |
| Blythe | 10:31:29 | -51.6 | Dark | Up | 40.5 | 53.1 | Up | 10:29:04 - 10:33:55 | 5427 |
| Parker | 10:31:29 | -51.3 | Dark | Up | 41.0 | 53.5 | Up | 10:29:04 - 10:33:55 | 5387 |
| Lake Havasu City | 10:31:31 | -51.3 | Dark | Up | 41.2 | 53.8 | Up | 10:29:06 - 10:33:57 | 5369 |
| Bishop | 10:31:47 | -54.0 | Dark | Up | 40.2 | 55.1 | Up | 10:29:21 - 10:34:12 | 5364 |
| Mohave Valley | 10:31:33 | -51.5 | Dark | Up | 41.2 | 54.0 | Up | 10:29:07 - 10:33:58 | 5358 |
| Lee Vining | 10:31:50 | -54.4 | Dark | Up | 40.1 | 55.3 | Up | 10:29:25 - 10:34:16 | 5354 |
| Laughlin/Bullhead City | 10:31:33 | -51.4 | Dark | Up | 41.4 | 54.2 | Up | 10:29:08 - 10:33:59 | 5344 |
| Beatty | 10:31:43 | -52.9 | Dark | Up | 41.0 | 55.1 | Up | 10:29:18 - 10:34:09 | 5332 |
| Kingman/Dolan Springs | 10:31:33 | -51.0 | Dark | Up | 41.8 | 54.3 | Up | 10:29:07 - 10:33:58 | 5321 |
| Gardnerville | 10:31:54 | -54.6 | Dark | Up | 40.2 | 55.8 | Up | 10:29:29 - 10:34:20 | 5314 |
| Henderson | 10:31:36 | -51.6 | Dark | Up | 41.6 | 54.8 | Up | 10:29:11 - 10:34:02 | 5312 |
| Indian Springs | 10:31:39 | -52.1 | Dark | Up | 41.5 | 55.1 | Up | 10:29:14 - 10:34:05 | 5310 |
| George/Scottsdale | 10:31:24 | -49.4 | Dark | Up | 42.3 | 53.5 | Up | 10:28:59 - 10:33:50 | 5302 |
| Hawthorne | 10:31:50 | -53.9 | Dark | Up | 40.7 | 55.8 | Up | 10:29:25 - 10:34:16 | 5302 |
| Patrick | 10:31:33 | -50.8 | Dark | Up | 42.0 | 54.5 | Up | 10:29:07 - 10:33:58 | 5301 |
| Carson City | 10:31:54 | -54.6 | Dark | Up | 40.3 | 56.0 | Up | 10:29:28 - 10:34:19 | 5300 |
| Yerington | 10:31:53 | -54.2 | Dark | Up | 40.6 | 56.0 | Up | 10:29:28 - 10:34:19 | 5291 |
| Quincy | 10:31:59 | -55.2 | Dark | Up | 40.0 | 56.2 | Up | 10:29:34 - 10:34:25 | 5288 |
| Portola | 10:31:57 | -54.9 | Dark | Up | 40.3 | 56.3 | Up | 10:29:32 - 10:34:23 | 5282 |
| Tonopah | 10:31:47 | -53.0 | Dark | Up | 41.4 | 55.8 | Up | 10:29:21 - 10:34:12 | 5281 |
| Reno | 10:31:56 | -54.5 | Dark | Up | 40.5 | 56.3 | Up | 10:29:30 - 10:34:21 | 5278 |
| Greenville | 10:31:59 | -55.1 | Dark | Up | 40.1 | 56.4 | Up | 10:29:34 - 10:34:25 | 5275 |
| Gimple | 10:31:59 | -55.1 | Dark | Up | 40.2 | 56.4 | Up | 10:29:34 - 10:34:25 | 5273 |
| Susanville | 10:32:00 | -54.8 | Dark | Up | 40.5 | 56.6 | Up | 10:29:35 - 10:34:26 | 5248 |
| Fall River/Burney | 10:32:04 | -55.1 | Dark | Up | 40.4 | 56.9 | Up | 10:29:39 - 10:34:30 | 5229 |
| Klamath Falls | 10:32:06 | -55.0 | Dark | Up | 40.8 | 57.6 | Up | 10:29:41 - 10:34:32 | 5161 |
| Cedarville | 10:32:01 | -54.1 | Dark | Up | 41.4 | 57.6 | Up | 10:29:35 - 10:34:26 | 5161 |
| Lakeview | 10:32:04 | -54.0 | Dark | Up | 41.6 | 58.0 | Up | 10:29:39 - 10:34:30 | 5122 |
| Paisley | 10:32:06 | -53.9 | Dark | Up | 41.8 | 58.4 | Up | 10:29:41 - 10:34:32 | 5094 |
| North Lake | 10:32:08 | -54.0 | Dark | Up | 41.9 | 58.7 | Up | 10:29:43 - 10:34:34 | 5066 |
| La Pine/Gilchrist | 10:32:10 | -54.2 | Dark | Up | 41.7 | 58.8 | Up | 10:29:44 - 10:34:35 | 5053 |
| Oregon Observatory | 10:32:11 | -54.1 | Dark | Up | 41.9 | 59.0 | Up | 10:29:45 - 10:34:36 | 5037 |
| Bend | 10:32:11 | -53.9 | Dark | Up | 42.0 | 59.2 | Up | 10:29:45 - 10:34:36 | 5021 |
| Sisters | 10:32:12 | -54.0 | Dark | Up | 42.0 | 59.2 | Up | 10:29:46 - 10:34:37 | 5012 |
| Redmond | 10:32:12 | -53.7 | Dark | Up | 42.2 | 59.4 | Up | 10:29:46 - 10:34:37 | 5002 |
| Maupin | 10:32:13 | -53.3 | Dark | Up | 42.8 | 60.1 | Up | 10:29:48 - 10:34:39 | 4935 |
| The Dalles | 10:32:15 | -53.1 | Dark | Up | 42.9 | 60.4 | Up | 10:29:49 - 10:34:40 | 4908 |
| Goldendale | 10:32:15 | -52.8 | Dark | Up | 43.2 | 60.8 | Up | 10:29:50 - 10:34:41 | 4882 |
| Toppenish/White Swan | 10:32:15 | -52.3 | Dark | Up | 43.8 | 61.4 | Up | 10:29:50 - 10:34:41 | 4830 |
| Yakima | 10:32:16 | -52.3 | Dark | Up | 43.8 | 61.5 | Up | 10:29:50 - 10:34:41 | 4819 |
| PNWRO | 10:32:12 | -51.5 | Dark | Up | 44.5 | 61.7 | Up | 10:29:46 - 10:34:37 | 4813 |
| Pasco | 10:32:12 | -51.6 | Dark | Up | 44.5 | 61.8 | Up | 10:29:46 - 10:34:37 | 4802 |
| Ellensburg | 10:32:17 | -52.1 | Dark | Up | 44.0 | 61.8 | Up | 10:29:51 - 10:34:42 | 4789 |
| Wenatchee | 10:32:17 | -51.8 | Dark | Up | 44.3 | 62.3 | Up | 10:29:51 - 10:34:42 | 4752 |
| Victoria | 10:32:26 | -53.0 | Dark | Up | 43.0 | 61.9 | Up | 10:30:00 - 10:34:51 | 4746 |
| Manson/Chelan | 10:32:19 | -51.5 | Dark | Up | 44.6 | 62.8 | Up | 10:29:53 - 10:34:44 | 4712 |
| Brewster | 10:32:19 | -51.2 | Dark | Up | 44.9 | 63.1 | Up | 10:29:53 - 10:34:44 | 4686 |
| Okanogan | 10:32:19 | -50.9 | Dark | Up | 45.2 | 63.5 | Up | 10:29:53 - 10:34:44 | 4660 |
| Tonasket | 10:32:19 | -50.7 | Dark | Up | 45.4 | 63.8 | Up | 10:29:53 - 10:34:44 | 4631 |
| Dunrhomin | 10:31:31 | -43.5 | Dark | Up | 50.4 | 60.2 | Up | 10:29:06 - 10:33:57 | 4631 |
| Anarchist Mountain Observatory | 10:32:20 | -50.5 | Dark | Up | 45.6 | 64.2 | Up | 10:29:54 - 10:34:45 | 4606 |
| Oliver | 10:32:20 | -50.5 | Dark | Up | 45.6 | 64.2 | Up | 10:29:55 - 10:34:46 | 4598 |
| Penticton | 10:32:22 | -50.3 | Dark | Up | 45.7 | 64.6 | Up | 10:29:57 - 10:34:48 | 4571 |
| Summerland | 10:32:22 | -50.4 | Dark | Up | 45.7 | 64.6 | Up | 10:29:57 - 10:34:48 | 4569 |
| Peachland | 10:32:23 | -50.3 | Dark | Up | 45.7 | 64.7 | Up | 10:29:57 - 10:34:48 | 4560 |
| Kelowna | 10:32:22 | -50.1 | Dark | Up | 45.9 | 64.9 | Up | 10:29:57 - 10:34:48 | 4544 |
| Clarence Fulton | 10:32:22 | -49.8 | Dark | Up | 46.2 | 65.3 | Up | 10:29:57 - 10:34:48 | 4510 |
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 468861, (2021/01/04 10:31UT) Object RA Dec mag sep mel Arcturus 14:15:38.1 +19:10:15 0.0 28.53 42 Alkaid 13:47:32.2 +49:18:48 1.9 3.91 50 13 Boo 14:08:17.2 +49:27:31 5.3 1.79 52 PPM 053942 14:07:56.3 +48:12:38 7.4 0.57 52 PPM 053951 14:08:56.2 +47:14:06 9.5 0.44 51 PPM 053953 14:09:11.9 +47:58:56 10.3 0.31 52 468861 14:08:58.9 +47:40:24 15.6 51 Positions are for J2000
Event circumstances last updated at 2020/12/30 19:55:31 UT
Marc W. Buie, Southwest Research Institute