Event between (543454) 14HZ199 and star GA0760:05149272 with event index number of 1705122
Geocentric closest approach at 2021/05/12 08:54:31 UTC
J2000 position of star is 15:08:17.9 -12:40:39
Equinox of date position of star is 15:09:27.3 -12:45:26
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 169 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=21.3
[RECON map]
TNO is 41.6 AU from the Sun
and 40.6 AU from the Earth.
The TNO is moving 25.4
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 62 seconds.
The 1-sigma cross-track error in the shadow position is
1560 km.
The sky-plane scale is
29475.7 km/arcsec.
The TNO has an absolute magnitude Hv=5.1
Diameter=586.2 km assuming a 5% albedo -- 23.0 sec chord
Diameter=239.3 km assuming a 30% albedo -- 9.4 sec chord
Dynamical classification is SCATEXTD
Star training set for 543454, (2021/05/12 08:55UT) Object RA Dec mag sep mel Antares 16:30:43.2 -26:28:39 0.9 23.48 167 27Bet Lib 15:18:09.6 -09:27:38 2.6 3.93 169 18 Lib 15:00:03.1 -11:13:43 5.8 2.77 167 PPM 229758 15:07:44.7 -12:59:19 7.9 0.48 169 PPM 229775 15:08:13.9 -13:01:01 9.6 0.40 169 543454 15:09:28.3 -12:45:30 16.0 170 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 16.4 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) |
| Clarence Fulton | 08:54:22 | -20.2 | Dark | Down | 25.2 | 199.0 | Low | 08:48:44 - 09:00:01 | 13815 |
| Kelowna | 08:54:23 | -20.6 | Dark | Down | 25.6 | 198.9 | Low | 08:48:45 - 09:00:02 | 13796 |
| Peachland | 08:54:23 | -20.8 | Dark | Down | 25.8 | 198.6 | Low | 08:48:45 - 09:00:02 | 13789 |
| Summerland | 08:54:22 | -20.9 | Dark | Down | 25.9 | 198.7 | Low | 08:48:44 - 09:00:01 | 13782 |
| Penticton | 08:54:23 | -21.0 | Dark | Down | 25.9 | 198.8 | Low | 08:48:45 - 09:00:02 | 13780 |
| Oliver | 08:54:22 | -21.3 | Dark | Down | 26.3 | 198.9 | Low | 08:48:44 - 09:00:01 | 13763 |
| Anarchist Mountain Observatory | 08:54:21 | -21.4 | Dark | Down | 26.4 | 199.1 | Low | 08:48:43 - 09:00:00 | 13757 |
| Tonasket | 08:54:21 | -21.7 | Dark | Down | 26.7 | 199.1 | Low | 08:48:43 - 09:00:00 | 13741 |
| Okanogan | 08:54:21 | -22.1 | Dark | Down | 27.1 | 199.0 | Low | 08:48:42 - 08:59:59 | 13724 |
| Brewster | 08:54:20 | -22.4 | Dark | Down | 27.4 | 198.8 | Low | 08:48:42 - 08:59:59 | 13708 |
| Victoria | 08:54:31 | -22.5 | Dark | Down | 27.6 | 194.9 | Low | 08:48:53 - 09:00:10 | 13697 |
| Manson/Chelan | 08:54:22 | -22.6 | Dark | Down | 27.6 | 198.5 | Low | 08:48:44 - 09:00:01 | 13695 |
| Wenatchee | 08:54:21 | -23.1 | Dark | Down | 28.1 | 198.4 | Low | 08:48:43 - 09:00:00 | 13669 |
| Ellensburg | 08:54:21 | -23.6 | Dark | Down | 28.6 | 198.2 | Low | 08:48:43 - 09:00:00 | 13646 |
| Yakima | 08:54:21 | -24.0 | Dark | Down | 29.0 | 198.2 | Low | 08:48:43 - 09:00:00 | 13625 |
| Pasco | 08:54:17 | -24.0 | Dark | Down | 28.9 | 199.8 | Low | 08:48:39 - 08:59:56 | 13620 |
| Toppenish/White Swan | 08:54:21 | -24.2 | Dark | Down | 29.1 | 198.5 | Low | 08:48:42 - 08:59:59 | 13615 |
| PNWRO | 08:54:16 | -24.2 | Dark | Down | 29.1 | 200.1 | Low | 08:48:37 - 08:59:54 | 13609 |
| Goldendale | 08:54:22 | -24.8 | Dark | Down | 29.7 | 198.1 | Low | 08:48:43 - 09:00:00 | 13582 |
| The Dalles | 08:54:22 | -25.0 | Dark | Down | 30.0 | 197.7 | Up | 08:48:43 - 09:00:00 | 13566 |
| Maupin | 08:54:21 | -25.4 | Dark | Down | 30.4 | 197.9 | Up | 08:48:42 - 08:59:59 | 13545 |
| Redmond | 08:54:21 | -26.3 | Dark | Down | 31.3 | 198.0 | Up | 08:48:42 - 08:59:59 | 13494 |
| Sisters | 08:54:22 | -26.4 | Dark | Down | 31.4 | 197.5 | Up | 08:48:44 - 09:00:01 | 13492 |
| Bend | 08:54:21 | -26.6 | Dark | Down | 31.5 | 197.9 | Up | 08:48:42 - 08:59:59 | 13481 |
| Oregon Observatory | 08:54:21 | -26.7 | Dark | Down | 31.7 | 197.8 | Up | 08:48:43 - 09:00:00 | 13470 |
| La Pine/Gilchrist | 08:54:21 | -27.0 | Dark | Down | 31.9 | 197.7 | Up | 08:48:43 - 09:00:00 | 13458 |
| North Lake | 08:54:18 | -27.3 | Dark | Down | 32.2 | 198.5 | Up | 08:48:40 - 08:59:57 | 13438 |
| Paisley | 08:54:16 | -27.7 | Dark | Down | 32.6 | 199.0 | Up | 08:48:38 - 08:59:55 | 13410 |
| Lakeview | 08:54:16 | -28.2 | Dark | Down | 33.1 | 199.3 | Up | 08:48:37 - 08:59:54 | 13381 |
| Klamath Falls | 08:54:20 | -28.4 | Dark | Down | 33.4 | 197.7 | Up | 08:48:41 - 08:59:58 | 13370 |
| Dunrhomin | 08:53:27 | -25.5 | Dark | Down | 29.6 | 215.8 | Low | 08:47:49 - 08:59:06 | 13367 |
| Cedarville | 08:54:14 | -28.8 | Dark | Down | 33.7 | 199.6 | Up | 08:48:35 - 08:59:52 | 13344 |
| Fall River/Burney | 08:54:17 | -29.5 | Dark | Down | 34.4 | 198.4 | Up | 08:48:39 - 08:59:56 | 13302 |
| Susanville | 08:54:14 | -30.0 | Dark | Down | 34.8 | 199.3 | Up | 08:48:35 - 08:59:52 | 13270 |
| Gimple | 08:54:15 | -30.3 | Dark | Down | 35.1 | 199.2 | Up | 08:48:36 - 08:59:53 | 13251 |
| Greenville | 08:54:15 | -30.3 | Dark | Down | 35.2 | 199.1 | Up | 08:48:36 - 08:59:53 | 13250 |
| Quincy | 08:54:15 | -30.5 | Dark | Down | 35.4 | 199.1 | Up | 08:48:36 - 08:59:53 | 13237 |
| Portola | 08:54:13 | -30.5 | Dark | Down | 35.3 | 199.7 | Up | 08:48:35 - 08:59:52 | 13234 |
| Reno | 08:54:10 | -30.6 | Dark | Down | 35.4 | 200.5 | Up | 08:48:32 - 08:59:49 | 13224 |
| Carson City | 08:54:10 | -31.0 | Dark | Down | 35.8 | 200.6 | Up | 08:48:32 - 08:59:49 | 13201 |
| Yerington | 08:54:08 | -31.0 | Dark | Down | 35.8 | 201.4 | Up | 08:48:29 - 08:59:46 | 13194 |
| Gardnerville | 08:54:09 | -31.2 | Dark | Down | 36.0 | 200.7 | Up | 08:48:30 - 08:59:47 | 13186 |
| Hawthorne | 08:54:06 | -31.3 | Dark | Down | 36.0 | 202.1 | Up | 08:48:28 - 08:59:45 | 13169 |
| Tonopah | 08:53:59 | -31.4 | Dark | Down | 36.1 | 203.8 | Up | 08:48:21 - 08:59:38 | 13152 |
| Lee Vining | 08:54:06 | -32.0 | Dark | Down | 36.7 | 201.7 | Up | 08:48:27 - 08:59:44 | 13128 |
| Bishop | 08:54:03 | -32.4 | Dark | Down | 37.1 | 202.7 | Up | 08:48:24 - 08:59:41 | 13095 |
| Beatty | 08:53:57 | -32.4 | Dark | Down | 37.0 | 204.7 | Up | 08:48:18 - 08:59:35 | 13078 |
| Indian Springs | 08:53:53 | -32.4 | Dark | Down | 36.9 | 206.0 | Up | 08:48:15 - 08:59:32 | 13065 |
| Henderson | 08:53:50 | -32.7 | Dark | Down | 37.1 | 207.0 | Up | 08:48:11 - 08:59:28 | 13034 |
| Patrick | 08:53:47 | -32.9 | Dark | Down | 37.3 | 208.4 | Up | 08:48:09 - 08:59:26 | 13000 |
| Kingman/Dolan Springs | 08:53:45 | -33.2 | Dark | Down | 37.5 | 208.3 | Up | 08:48:07 - 08:59:24 | 12983 |
| Laughlin/Bullhead City | 08:53:48 | -33.4 | Dark | Down | 37.8 | 207.7 | Up | 08:48:10 - 08:59:27 | 12977 |
| Mohave Valley | 08:53:48 | -33.6 | Dark | Down | 38.0 | 207.8 | Up | 08:48:09 - 08:59:26 | 12958 |
| Lake Havasu City | 08:53:45 | -33.9 | Dark | Down | 38.3 | 208.3 | Up | 08:48:07 - 08:59:24 | 12932 |
| CPSLO | 08:54:08 | -34.9 | Dark | Down | 39.6 | 200.6 | Up | 08:48:30 - 08:59:47 | 12930 |
| Parker | 08:53:45 | -34.3 | Dark | Down | 38.6 | 208.4 | Up | 08:48:06 - 08:59:23 | 12907 |
| George/Scottsdale | 08:53:37 | -33.8 | Dark | Down | 37.9 | 211.3 | Up | 08:47:58 - 08:59:15 | 12895 |
| Blythe | 08:53:46 | -34.8 | Dark | Down | 39.1 | 208.3 | Up | 08:48:07 - 08:59:24 | 12867 |
| Wildwood | 08:53:59 | -35.6 | Dark | Down | 40.1 | 203.5 | Up | 08:48:21 - 08:59:38 | 12865 |
| Idyllwild | 08:53:52 | -35.4 | Dark | Down | 39.8 | 205.8 | Up | 08:48:14 - 08:59:31 | 12858 |
| Calipatria | 08:53:47 | -35.6 | Dark | Down | 39.9 | 207.4 | Up | 08:48:09 - 08:59:26 | 12823 |
| Yuma | 08:53:44 | -35.7 | Dark | Down | 40.0 | 208.6 | Up | 08:48:05 - 08:59:22 | 12799 |
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 543454, (2021/05/12 08:55UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 23.48 167 27Bet Lib 15:17:00.3 -09:22:59 2.6 3.93 169 18 Lib 14:58:53.4 -11:08:40 5.8 2.77 167 PPM 229758 15:06:34.3 -12:54:26 7.9 0.48 169 PPM 229775 15:07:03.4 -12:56:08 9.6 0.40 169 543454 15:08:17.9 -12:40:39 16.0 169 Positions are for J2000
Event circumstances last updated at 2021/01/20 21:42:29 UT
Marc W. Buie, Southwest Research Institute