Event between (544430) 14UW224 and star GA1020:03316503 with event index number of 1707182
Geocentric closest approach at 2026/02/04 08:41:47 UTC
J2000 position of star is 09:25:14.1 +12:20:16
Equinox of date position of star is 09:26:21.0 +12:14:54
Stellar brightness G=14.4,
use SENSEUP=64
Star is 27 degrees from the moon.
Moon is 93% illuminated.
TNO apparent brightness V=25.7
[RECON map]
TNO is 37.5 AU from the Sun
and 36.5 AU from the Earth.
The TNO is moving 24.7
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 383 seconds.
The 1-sigma cross-track error in the shadow position is
4845 km.
The sky-plane scale is
26485.5 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=263.0 km assuming a 5% albedo -- 2.4 sec chord
Diameter=107.4 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is 5:2EEE
Star training set for 544430, (2026/02/04 08:42UT) Object RA Dec mag sep mel Regulus 10:09:45.6 +11:50:19 1.3 10.55 17 5Xi Leo 09:33:21.0 +11:10:59 5.0 1.94 25 PPM 126472 09:29:01.3 +12:17:06 7.9 0.58 26 PPM 126418 09:25:45.3 +12:24:24 9.5 0.28 27 PPM 126434 09:26:39.0 +12:04:18 11.0 0.15 27 544430 09:26:39.1 +12:13:27 14.4 26 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
2.3 sigma about the mid-time.
The median site spacing is 20.5 km
RECON observability=1.0 and success probability=8.3%
| 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 | 08:42:23 | -55.3 | Dark | Up | 51.9 | 187.1 | Up | 08:27:23 - 08:57:23 | 1993 |
| Kelowna | 08:42:23 | -55.8 | Dark | Up | 52.3 | 187.0 | Up | 08:27:23 - 08:57:23 | 1958 |
| Peachland | 08:42:23 | -55.9 | Dark | Up | 52.4 | 186.5 | Up | 08:27:23 - 08:57:23 | 1942 |
| Summerland | 08:42:23 | -56.0 | Dark | Up | 52.6 | 186.7 | Up | 08:27:23 - 08:57:23 | 1932 |
| Penticton | 08:42:22 | -56.1 | Dark | Up | 52.6 | 186.9 | Up | 08:27:22 - 08:57:22 | 1929 |
| Oliver | 08:42:22 | -56.4 | Dark | Up | 53.0 | 186.9 | Up | 08:27:22 - 08:57:22 | 1899 |
| Anarchist Mountain Observatory | 08:42:21 | -56.6 | Dark | Up | 53.1 | 187.3 | Up | 08:27:21 - 08:57:21 | 1890 |
| Tonasket | 08:42:21 | -56.9 | Dark | Up | 53.5 | 187.2 | Up | 08:27:21 - 08:57:21 | 1862 |
| Okanogan | 08:42:21 | -57.2 | Dark | Up | 53.8 | 187.0 | Up | 08:27:21 - 08:57:21 | 1830 |
| Brewster | 08:42:21 | -57.5 | Dark | Up | 54.1 | 186.7 | Up | 08:27:21 - 08:57:21 | 1803 |
| Manson/Chelan | 08:42:22 | -57.8 | Dark | Up | 54.3 | 186.1 | Up | 08:27:22 - 08:57:22 | 1777 |
| Victoria | 08:42:32 | -57.5 | Dark | Up | 53.8 | 180.7 | Up | 08:27:32 - 08:57:32 | 1757 |
| Entiat | 08:42:22 | -58.0 | Dark | Up | 54.5 | 186.0 | Up | 08:27:22 - 08:57:22 | 1756 |
| Wenatchee | 08:42:22 | -58.3 | Dark | Up | 54.8 | 185.9 | Up | 08:27:22 - 08:57:22 | 1732 |
| Ellensburg | 08:42:22 | -58.7 | Dark | Up | 55.2 | 185.6 | Up | 08:27:22 - 08:57:22 | 1692 |
| Pasco | 08:42:17 | -59.2 | Dark | Up | 55.9 | 188.1 | Up | 08:27:17 - 08:57:17 | 1662 |
| Yakima | 08:42:21 | -59.1 | Dark | Up | 55.6 | 185.6 | Up | 08:27:21 - 08:57:21 | 1656 |
| PNWRO | 08:42:16 | -59.4 | Dark | Up | 56.1 | 188.6 | Up | 08:27:16 - 08:57:16 | 1646 |
| Toppenish/White Swan | 08:42:21 | -59.3 | Dark | Up | 55.8 | 185.9 | Up | 08:27:21 - 08:57:21 | 1642 |
| Goldendale | 08:42:22 | -59.9 | Dark | Up | 56.4 | 185.3 | Up | 08:27:22 - 08:57:22 | 1584 |
| The Dalles | 08:42:23 | -60.2 | Dark | Up | 56.7 | 184.7 | Up | 08:27:23 - 08:57:23 | 1555 |
| Maupin | 08:42:22 | -60.6 | Dark | Up | 57.1 | 184.9 | Up | 08:27:22 - 08:57:22 | 1521 |
| Niwot | 08:41:25 | -59.5 | Dark | Up | 57.8 | 215.4 | Up | 08:26:25 - 08:56:25 | 1509 |
| SwRI | 08:41:25 | -59.7 | Dark | Up | 58.0 | 215.4 | Up | 08:26:25 - 08:56:25 | 1496 |
| Redmond | 08:42:21 | -61.5 | Dark | Up | 58.0 | 184.9 | Up | 08:27:21 - 08:57:21 | 1439 |
| Sisters | 08:42:22 | -61.5 | Dark | Up | 58.0 | 184.1 | Up | 08:27:22 - 08:57:22 | 1431 |
| Bend | 08:42:21 | -61.7 | Dark | Up | 58.2 | 184.6 | Up | 08:27:21 - 08:57:21 | 1416 |
| Oregon Observatory | 08:42:21 | -61.9 | Dark | Up | 58.4 | 184.4 | Up | 08:27:21 - 08:57:21 | 1398 |
| La Pine/Gilchrist | 08:42:20 | -62.1 | Dark | Up | 58.6 | 184.3 | Up | 08:27:20 - 08:57:20 | 1378 |
| North Lake | 08:42:19 | -62.4 | Dark | Up | 59.0 | 185.5 | Up | 08:27:19 - 08:57:19 | 1354 |
| Paisley | 08:42:16 | -62.9 | Dark | Up | 59.5 | 186.3 | Up | 08:27:16 - 08:57:16 | 1313 |
| Lakeview | 08:42:15 | -63.4 | Dark | Up | 60.0 | 186.7 | Up | 08:27:15 - 08:57:15 | 1272 |
| Klamath Falls | 08:42:20 | -63.6 | Dark | Up | 60.1 | 184.0 | Up | 08:27:20 - 08:57:20 | 1240 |
| Cedarville | 08:42:14 | -64.0 | Dark | Up | 60.6 | 187.2 | Up | 08:27:14 - 08:57:14 | 1217 |
| Fall River/Burney | 08:42:17 | -64.6 | Dark | Up | 61.2 | 184.9 | Up | 08:27:17 - 08:57:17 | 1141 |
| Susanville | 08:42:14 | -65.1 | Dark | Up | 61.8 | 186.5 | Up | 08:27:14 - 08:57:14 | 1102 |
| Gimple | 08:42:15 | -65.4 | Dark | Up | 62.1 | 186.1 | Up | 08:27:15 - 08:57:15 | 1071 |
| Greenville | 08:42:14 | -65.5 | Dark | Up | 62.1 | 185.9 | Up | 08:27:14 - 08:57:14 | 1069 |
| Portola | 08:42:13 | -65.7 | Dark | Up | 62.4 | 187.0 | Up | 08:27:13 - 08:57:13 | 1051 |
| Quincy | 08:42:14 | -65.6 | Dark | Up | 62.3 | 186.0 | Up | 08:27:14 - 08:57:14 | 1050 |
| Reno | 08:42:10 | -65.8 | Dark | Up | 62.6 | 188.4 | Up | 08:27:10 - 08:57:10 | 1044 |
| Carson City | 08:42:09 | -66.1 | Dark | Up | 62.9 | 188.5 | Up | 08:27:09 - 08:57:09 | 1011 |
| Yerington | 08:42:07 | -66.2 | Dark | Up | 63.0 | 189.9 | Up | 08:27:07 - 08:57:07 | 1010 |
| Gardnerville | 08:42:09 | -66.4 | Dark | Up | 63.2 | 188.7 | Up | 08:27:09 - 08:57:09 | 990 |
| Hawthorne | 08:42:05 | -66.5 | Dark | Up | 63.4 | 191.2 | Up | 08:27:05 - 08:57:05 | 981 |
| Tonopah | 08:42:00 | -66.5 | Dark | Up | 63.6 | 194.4 | Up | 08:27:00 - 08:57:00 | 977 |
| Lee Vining | 08:42:06 | -67.1 | Dark | Up | 64.0 | 190.4 | Up | 08:27:06 - 08:57:06 | 915 |
| Indian Springs | 08:41:52 | -67.3 | Dark | Up | 64.7 | 198.6 | Up | 08:26:52 - 08:56:52 | 882 |
| Beatty | 08:41:56 | -67.4 | Dark | Up | 64.7 | 196.0 | Up | 08:26:56 - 08:56:56 | 881 |
| Bishop | 08:42:02 | -67.5 | Dark | Up | 64.5 | 192.2 | Up | 08:27:02 - 08:57:02 | 879 |
| Henderson | 08:41:49 | -67.4 | Dark | Up | 65.0 | 200.5 | Up | 08:26:49 - 08:56:49 | 851 |
| Patrick | 08:41:44 | -67.5 | Dark | Up | 65.3 | 203.4 | Up | 08:26:44 - 08:56:44 | 825 |
| DCO | 08:41:41 | -67.4 | Dark | Up | 65.3 | 205.2 | Up | 08:26:41 - 08:56:41 | 818 |
| Searchlight/Boulder City | 08:41:48 | -67.9 | Dark | Up | 65.6 | 201.0 | Up | 08:26:48 - 08:56:48 | 799 |
| Kingman/Dolan Springs | 08:41:44 | -67.8 | Dark | Up | 65.6 | 203.2 | Up | 08:26:44 - 08:56:44 | 799 |
| Laughlin/Bullhead City | 08:41:46 | -68.0 | Dark | Up | 65.7 | 202.1 | Up | 08:26:46 - 08:56:46 | 781 |
| Mohave Valley | 08:41:46 | -68.2 | Dark | Up | 66.0 | 202.3 | Up | 08:26:46 - 08:56:46 | 755 |
| George/Scottsdale | 08:41:35 | -67.8 | Dark | Up | 66.1 | 209.4 | Up | 08:26:35 - 08:56:35 | 726 |
| Lake Havasu City | 08:41:44 | -68.5 | Dark | Up | 66.3 | 203.2 | Up | 08:26:44 - 08:56:44 | 725 |
| Parker | 08:41:43 | -68.7 | Dark | Up | 66.6 | 203.6 | Up | 08:26:43 - 08:56:43 | 692 |
| Blythe | 08:41:44 | -69.3 | Dark | Up | 67.2 | 203.4 | Up | 08:26:44 - 08:56:44 | 633 |
| CPSLO | 08:42:07 | -70.0 | Dark | Up | 66.9 | 187.7 | Up | 08:27:07 - 08:57:07 | 619 |
| Idyllwild | 08:41:51 | -70.2 | Dark | Up | 67.7 | 198.2 | Up | 08:26:51 - 08:56:51 | 582 |
| Wildwood | 08:41:58 | -70.5 | Dark | Up | 67.8 | 193.3 | Up | 08:26:58 - 08:56:58 | 561 |
| Calipatria | 08:41:47 | -70.1 | Dark | Up | 67.9 | 201.6 | Up | 08:26:47 - 08:56:47 | 558 |
| Yuma | 08:41:42 | -70.1 | Dark | Up | 68.0 | 204.2 | Up | 08:26:42 - 08:56:42 | 543 |
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 544430, (2026/02/04 08:42UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 10.55 17 5Xi Leo 09:31:56.6 +11:17:58 5.0 1.94 25 PPM 126472 09:27:36.4 +12:23:59 7.9 0.58 26 PPM 126418 09:24:20.2 +12:31:12 9.5 0.28 27 PPM 126434 09:25:14.1 +12:11:07 11.0 0.15 27 544430 09:25:14.1 +12:20:16 14.4 27 Positions are for J2000
Event circumstances last updated at 2020/07/22 21:19:51 UT
Marc W. Buie, Southwest Research Institute