Event between (535230) 14YH50 and star GA1300:04081878 with event index number of 2259255
Geocentric closest approach at 2023/01/18 06:37:07 UTC
J2000 position of star is 10:18:16.7 +41:14:21
Equinox of date position of star is 10:19:36.0 +41:07:39
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 106 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=22.3
[RECON map]
TNO is 40.1 AU from the Sun
and 39.3 AU from the Earth.
The TNO is moving 24.7
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 116 seconds.
The 1-sigma cross-track error in the shadow position is
2888 km.
The sky-plane scale is
28508.2 km/arcsec.
The TNO has an absolute magnitude Hv=6.2
Diameter=338.9 km assuming a 5% albedo -- 13.7 sec chord
Diameter=138.3 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is SCATNEAR
Star training set for 535230, (2023/01/18 06:35UT) Object RA Dec mag sep mel Regulus 10:09:35.8 +11:51:13 1.3 29.35 98 Merak 11:03:13.0 +56:15:30 2.4 16.71 104 PPM 051848 10:23:32.3 +41:06:42 6.3 0.73 105 PPM 051797 10:18:40.0 +41:21:05 7.9 0.29 106 535230 10:19:39.1 +41:07:23 16.4 106 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 30.5 km
RECON observability=1.0 and success probability=17.1%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Sleaford | 06:39:18 | -57.8 | Dark | Down | 58.9 | 93.0 | Up | 06:29:06 - 06:49:29 | -1456 |
Kamloops | 06:39:50 | -54.9 | Dark | Down | 50.0 | 80.5 | Up | 06:29:38 - 06:50:01 | -1683 |
Kelowna | 06:39:47 | -55.9 | Dark | Down | 50.4 | 80.2 | Up | 06:29:36 - 06:49:59 | -1775 |
Peachland | 06:39:48 | -55.9 | Dark | Down | 50.2 | 79.8 | Up | 06:29:37 - 06:50:00 | -1787 |
Summerland | 06:39:47 | -56.0 | Dark | Down | 50.2 | 79.7 | Up | 06:29:36 - 06:49:59 | -1803 |
Penticton | 06:39:48 | -56.1 | Dark | Down | 50.3 | 79.7 | Up | 06:29:36 - 06:49:59 | -1811 |
Oliver | 06:39:47 | -56.4 | Dark | Down | 50.2 | 79.3 | Up | 06:29:36 - 06:49:59 | -1849 |
Anarchist Mountain Observatory | 06:39:47 | -56.6 | Dark | Down | 50.3 | 79.2 | Up | 06:29:36 - 06:49:59 | -1869 |
Tonasket | 06:39:47 | -56.8 | Dark | Down | 50.2 | 78.8 | Up | 06:29:36 - 06:49:59 | -1902 |
Victoria | 06:39:56 | -55.2 | Dark | Down | 47.6 | 76.3 | Up | 06:29:45 - 06:50:08 | -1909 |
Okanogan | 06:39:48 | -57.0 | Dark | Down | 50.0 | 78.3 | Up | 06:29:36 - 06:49:59 | -1939 |
Brewster | 06:39:48 | -57.1 | Dark | Down | 49.8 | 77.9 | Up | 06:29:36 - 06:49:59 | -1969 |
Manson/Chelan | 06:39:49 | -57.1 | Dark | Down | 49.6 | 77.4 | Up | 06:29:37 - 06:50:00 | -1991 |
Wenatchee | 06:39:49 | -57.4 | Dark | Down | 49.3 | 76.8 | Up | 06:29:37 - 06:50:00 | -2043 |
Ellensburg | 06:39:49 | -57.6 | Dark | Down | 49.1 | 76.2 | Up | 06:29:38 - 06:50:01 | -2087 |
Yakima | 06:39:48 | -57.9 | Dark | Down | 49.0 | 75.7 | Up | 06:29:37 - 06:50:00 | -2132 |
Toppenish/White Swan | 06:39:49 | -58.1 | Dark | Down | 49.0 | 75.6 | Up | 06:29:37 - 06:50:00 | -2156 |
PNWRO | 06:39:45 | -59.1 | Dark | Down | 50.0 | 76.0 | Up | 06:29:33 - 06:49:56 | -2198 |
Goldendale | 06:39:49 | -58.3 | Dark | Down | 48.6 | 74.8 | Up | 06:29:38 - 06:50:01 | -2215 |
The Dalles | 06:39:50 | -58.3 | Dark | Down | 48.3 | 74.3 | Up | 06:29:38 - 06:50:01 | -2238 |
Maupin | 06:39:50 | -58.6 | Dark | Down | 48.3 | 73.9 | Up | 06:29:38 - 06:50:01 | -2284 |
Sisters | 06:39:50 | -59.0 | Dark | Down | 47.7 | 72.8 | Up | 06:29:39 - 06:50:02 | -2378 |
Bend | 06:39:49 | -59.3 | Dark | Down | 47.8 | 72.6 | Up | 06:29:38 - 06:50:01 | -2405 |
Oregon Observatory | 06:39:50 | -59.3 | Dark | Down | 47.6 | 72.4 | Up | 06:29:38 - 06:50:01 | -2423 |
North Lake | 06:39:48 | -60.0 | Dark | Down | 47.8 | 72.0 | Up | 06:29:37 - 06:50:00 | -2494 |
Chiloquin | 06:39:50 | -59.9 | Dark | Down | 46.9 | 70.9 | Up | 06:29:39 - 06:50:02 | -2563 |
Klamath Falls | 06:39:50 | -60.2 | Dark | Down | 46.9 | 70.5 | Up | 06:29:38 - 06:50:01 | -2600 |
Lakeview | 06:39:46 | -61.0 | Dark | Down | 47.9 | 71.1 | Up | 06:29:35 - 06:49:58 | -2609 |
Cedarville | 06:39:45 | -61.5 | Dark | Down | 47.8 | 70.5 | Up | 06:29:34 - 06:49:57 | -2680 |
Dunrhomin | 06:39:03 | -69.2 | Dark | Down | 58.1 | 74.1 | Up | 06:28:52 - 06:49:15 | -2716 |
Fall River/Burney | 06:39:48 | -61.1 | Dark | Down | 46.7 | 69.5 | Up | 06:29:36 - 06:49:59 | -2728 |
CU-SBO | 06:39:04 | -69.4 | Dark | Down | 57.9 | 73.7 | Up | 06:28:52 - 06:49:15 | -2744 |
Susanville | 06:39:46 | -62.0 | Dark | Down | 47.0 | 69.1 | Up | 06:29:34 - 06:49:57 | -2798 |
Greenville | 06:39:46 | -62.0 | Dark | Down | 46.7 | 68.8 | Up | 06:29:35 - 06:49:58 | -2826 |
Gimple | 06:39:46 | -62.0 | Dark | Down | 46.8 | 68.8 | Up | 06:29:35 - 06:49:58 | -2826 |
Quincy | 06:39:46 | -62.1 | Dark | Down | 46.7 | 68.6 | Up | 06:29:35 - 06:49:58 | -2847 |
Portola | 06:39:45 | -62.5 | Dark | Down | 47.0 | 68.6 | Up | 06:29:34 - 06:49:57 | -2862 |
Reno | 06:39:43 | -63.0 | Dark | Down | 47.3 | 68.6 | Up | 06:29:32 - 06:49:55 | -2892 |
Carson City | 06:39:43 | -63.2 | Dark | Down | 47.2 | 68.2 | Up | 06:29:31 - 06:49:54 | -2930 |
Yerington | 06:39:41 | -63.7 | Dark | Down | 47.6 | 68.2 | Up | 06:29:29 - 06:49:52 | -2952 |
Gardnerville | 06:39:42 | -63.4 | Dark | Down | 47.1 | 68.0 | Up | 06:29:31 - 06:49:54 | -2956 |
Hawthorne | 06:39:39 | -64.4 | Dark | Down | 47.8 | 67.9 | Up | 06:29:28 - 06:49:51 | -3001 |
Tonopah | 06:39:35 | -65.5 | Dark | Down | 48.6 | 67.8 | Up | 06:29:23 - 06:49:46 | -3050 |
Lee Vining | 06:39:40 | -64.4 | Dark | Down | 47.2 | 67.2 | Up | 06:29:28 - 06:49:51 | -3060 |
Bishop | 06:39:37 | -65.2 | Dark | Down | 47.5 | 66.8 | Up | 06:29:26 - 06:49:49 | -3123 |
Beatty | 06:39:32 | -66.5 | Dark | Down | 48.5 | 66.7 | Up | 06:29:21 - 06:49:44 | -3170 |
Indian Springs | 06:39:29 | -67.4 | Dark | Down | 49.2 | 66.6 | Up | 06:29:17 - 06:49:40 | -3201 |
Henderson | 06:39:26 | -68.1 | Dark | Down | 49.5 | 66.2 | Up | 06:29:15 - 06:49:38 | -3254 |
Patrick | 06:39:22 | -69.2 | Dark | Down | 50.0 | 65.7 | Up | 06:29:11 - 06:49:34 | -3313 |
Kingman/Dolan Springs | 06:39:23 | -69.3 | Dark | Down | 49.8 | 65.5 | Up | 06:29:11 - 06:49:34 | -3338 |
Laughlin/Bullhead City | 06:39:24 | -68.9 | Dark | Down | 49.4 | 65.3 | Up | 06:29:13 - 06:49:36 | -3342 |
Mohave Valley | 06:39:24 | -69.1 | Dark | Down | 49.3 | 65.1 | Up | 06:29:12 - 06:49:35 | -3370 |
Lake Havasu City | 06:39:23 | -69.5 | Dark | Down | 49.3 | 64.7 | Up | 06:29:11 - 06:49:34 | -3410 |
Parker | 06:39:22 | -69.8 | Dark | Down | 49.2 | 64.3 | Up | 06:29:10 - 06:49:33 | -3445 |
Wildwood | 06:39:35 | -66.9 | Dark | Down | 46.0 | 63.6 | Up | 06:29:23 - 06:49:46 | -3460 |
George/Scottsdale | 06:39:13 | -71.6 | Dark | Down | 50.8 | 64.2 | Up | 06:29:02 - 06:49:25 | -3473 |
Idyllwild | 06:39:28 | -68.4 | Dark | Down | 47.2 | 63.5 | Up | 06:29:17 - 06:49:40 | -3496 |
Calipatria | 06:39:25 | -69.5 | Dark | Down | 47.8 | 63.1 | Up | 06:29:13 - 06:49:36 | -3554 |
Yuma | 06:39:21 | -70.4 | Dark | Down | 48.3 | 62.8 | Up | 06:29:10 - 06:49:33 | -3594 |
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 535230, (2023/01/18 06:35UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 29.35 98 Merak 11:01:50.7 +56:22:57 2.4 16.71 104 PPM 051848 10:22:10.3 +41:13:43 6.3 0.73 105 PPM 051797 10:17:17.5 +41:28:02 7.9 0.29 106 535230 10:18:16.7 +41:14:21 16.4 106 Positions are for J2000
Event circumstances last updated at 2022/03/12 01:50:52 UT
Marc W. Buie, Southwest Research Institute