Event between (531015) 12BX154 and star GA0920:03566276 with event index number of 1600109
Geocentric closest approach at 2022/02/26 11:22:34 UTC
J2000 position of star is 11:22:11.2 +02:16:01
Equinox of date position of star is 11:23:16.0 +02:09:06
Stellar brightness G=14.1,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 111 degrees from the moon.
Moon is 23% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 44.6 AU from the Sun
and 43.6 AU from the Earth.
The TNO is moving 24.4
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 260 seconds.
The 1-sigma cross-track error in the shadow position is
5227 km.
The sky-plane scale is
31611.4 km/arcsec.
The TNO has an absolute magnitude Hv=6.4
Diameter=316.2 km assuming a 5% albedo -- 13.0 sec chord
Diameter=129.1 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is SCATNEAR
Star training set for 531015, (2022/02/26 11:23UT) Object RA Dec mag sep mel Regulus 10:09:33.0 +11:51:29 1.3 20.70 131 Denebola 11:50:11.3 +14:26:53 2.1 13.98 110 79 Leo 11:25:10.6 +01:17:09 6.4 0.98 110 PPM 157763 11:22:04.3 +02:18:02 7.8 0.35 111 PPM 157789 11:23:52.8 +01:53:07 9.8 0.29 110 PPM 157785 11:23:26.7 +02:08:08 10.4 0.03 111 531015 11:23:19.5 +02:08:43 14.1 110 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
3.5 sigma about the mid-time.
The median site spacing is 14.2 km
RECON observability=1.0 and success probability=5.2%
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 | 11:22:08 | -32.6 | Dark | Down | 32.7 | 225.6 | Up | 11:07:08 - 11:37:08 | -1801 |
Kelowna | 11:22:08 | -32.8 | Dark | Down | 33.1 | 225.6 | Up | 11:07:08 - 11:37:08 | -1824 |
Peachland | 11:22:08 | -33.1 | Dark | Down | 33.3 | 225.4 | Up | 11:07:08 - 11:37:08 | -1836 |
Summerland | 11:22:07 | -33.1 | Dark | Down | 33.4 | 225.5 | Up | 11:07:07 - 11:37:07 | -1842 |
Penticton | 11:22:07 | -33.1 | Dark | Down | 33.4 | 225.7 | Up | 11:07:07 - 11:37:07 | -1843 |
Oliver | 11:22:05 | -33.2 | Dark | Down | 33.6 | 225.8 | Up | 11:07:05 - 11:37:05 | -1862 |
Anarchist Mountain Observatory | 11:22:04 | -33.2 | Dark | Down | 33.6 | 226.1 | Up | 11:07:04 - 11:37:04 | -1866 |
Tonasket | 11:22:04 | -33.4 | Dark | Down | 33.9 | 226.2 | Up | 11:07:04 - 11:37:04 | -1885 |
Okanogan | 11:22:03 | -33.6 | Dark | Down | 34.2 | 226.2 | Up | 11:07:03 - 11:37:03 | -1906 |
Brewster | 11:22:03 | -33.9 | Dark | Down | 34.5 | 226.1 | Up | 11:07:03 - 11:37:03 | -1926 |
Manson/Chelan | 11:22:03 | -34.2 | Dark | Down | 34.8 | 225.8 | Up | 11:07:03 - 11:37:03 | -1945 |
Wenatchee | 11:22:02 | -34.5 | Dark | Down | 35.2 | 225.9 | Up | 11:07:02 - 11:37:02 | -1976 |
Victoria | 11:22:12 | -35.7 | Dark | Down | 35.8 | 222.0 | Up | 11:07:12 - 11:37:12 | -1985 |
Ellensburg | 11:22:02 | -34.9 | Dark | Down | 35.6 | 225.8 | Up | 11:07:02 - 11:37:02 | -2004 |
Pasco | 11:21:56 | -34.4 | Dark | Down | 35.4 | 227.7 | Up | 11:06:56 - 11:36:56 | -2014 |
PNWRO | 11:21:55 | -34.3 | Dark | Down | 35.5 | 228.1 | Up | 11:06:55 - 11:36:55 | -2023 |
Yakima | 11:22:00 | -35.1 | Dark | Down | 35.9 | 226.0 | Up | 11:07:00 - 11:37:00 | -2028 |
Toppenish/White Swan | 11:22:00 | -35.1 | Dark | Down | 36.0 | 226.3 | Up | 11:07:00 - 11:37:00 | -2037 |
Dunrhomin | 11:21:07 | -26.9 | Dark | Up | 30.5 | 244.0 | Up | 11:06:07 - 11:36:07 | -2058 |
Goldendale | 11:21:59 | -35.6 | Dark | Down | 36.6 | 226.1 | Up | 11:06:59 - 11:36:59 | -2079 |
The Dalles | 11:21:59 | -35.9 | Dark | Down | 36.9 | 225.9 | Up | 11:06:59 - 11:36:59 | -2101 |
Maupin | 11:21:57 | -36.1 | Dark | Down | 37.2 | 226.2 | Up | 11:06:57 - 11:36:57 | -2123 |
Redmond | 11:21:55 | -36.6 | Dark | Down | 37.8 | 226.6 | Up | 11:06:55 - 11:36:55 | -2180 |
Sisters | 11:21:56 | -36.8 | Dark | Down | 38.0 | 226.2 | Up | 11:06:56 - 11:36:56 | -2188 |
Bend | 11:21:55 | -36.8 | Dark | Down | 38.1 | 226.6 | Up | 11:06:55 - 11:36:55 | -2196 |
Oregon Observatory | 11:21:55 | -36.9 | Dark | Down | 38.2 | 226.5 | Up | 11:06:55 - 11:36:55 | -2210 |
La Pine/Gilchrist | 11:21:55 | -37.0 | Dark | Down | 38.4 | 226.6 | Up | 11:06:55 - 11:36:55 | -2224 |
North Lake | 11:21:52 | -36.9 | Dark | Down | 38.4 | 227.5 | Up | 11:06:52 - 11:36:52 | -2237 |
Paisley | 11:21:50 | -36.9 | Dark | Down | 38.6 | 228.2 | Up | 11:06:50 - 11:36:50 | -2263 |
Lakeview | 11:21:47 | -37.0 | Dark | Down | 38.8 | 228.7 | Up | 11:06:47 - 11:36:47 | -2290 |
Klamath Falls | 11:21:51 | -37.9 | Dark | Down | 39.6 | 227.1 | Up | 11:06:51 - 11:36:51 | -2324 |
Cedarville | 11:21:45 | -37.1 | Dark | Down | 39.1 | 229.2 | Up | 11:06:45 - 11:36:45 | -2328 |
Fall River/Burney | 11:21:47 | -38.2 | Dark | Down | 40.2 | 228.2 | Up | 11:06:47 - 11:36:47 | -2391 |
Susanville | 11:21:43 | -37.9 | Dark | Down | 40.2 | 229.4 | Up | 11:06:43 - 11:36:43 | -2414 |
Gimple | 11:21:43 | -38.2 | Dark | Down | 40.5 | 229.4 | Up | 11:06:43 - 11:36:43 | -2438 |
Greenville | 11:21:43 | -38.3 | Dark | Down | 40.5 | 229.3 | Up | 11:06:43 - 11:36:43 | -2440 |
Portola | 11:21:41 | -38.1 | Dark | Down | 40.4 | 230.0 | Up | 11:06:41 - 11:36:41 | -2450 |
Reno | 11:21:38 | -37.7 | Dark | Down | 40.2 | 230.9 | Up | 11:06:38 - 11:36:38 | -2451 |
Quincy | 11:21:42 | -38.3 | Dark | Down | 40.6 | 229.4 | Up | 11:06:42 - 11:36:42 | -2454 |
Yerington | 11:21:36 | -37.5 | Dark | Down | 40.2 | 231.9 | Up | 11:06:36 - 11:36:36 | -2472 |
Carson City | 11:21:38 | -37.8 | Dark | Down | 40.4 | 231.1 | Up | 11:06:38 - 11:36:38 | -2475 |
Tonopah | 11:21:27 | -36.4 | Dark | Down | 39.5 | 234.5 | Up | 11:06:27 - 11:36:27 | -2485 |
Hawthorne | 11:21:32 | -37.3 | Dark | Down | 40.2 | 232.7 | Up | 11:06:32 - 11:36:32 | -2490 |
Gardnerville | 11:21:36 | -37.9 | Dark | Down | 40.6 | 231.3 | Up | 11:06:36 - 11:36:36 | -2490 |
Lee Vining | 11:21:32 | -37.8 | Dark | Down | 40.8 | 232.6 | Up | 11:06:32 - 11:36:32 | -2541 |
Indian Springs | 11:21:19 | -35.8 | Dark | Down | 39.4 | 236.9 | Up | 11:06:19 - 11:36:19 | -2549 |
Beatty | 11:21:23 | -36.5 | Dark | Down | 39.9 | 235.7 | Up | 11:06:23 - 11:36:23 | -2554 |
Bishop | 11:21:28 | -37.5 | Dark | Down | 40.7 | 233.7 | Up | 11:06:28 - 11:36:28 | -2564 |
Henderson | 11:21:16 | -35.4 | Dark | Down | 39.2 | 237.9 | Up | 11:06:16 - 11:36:16 | -2569 |
Patrick | 11:21:11 | -34.7 | Dark | Down | 38.8 | 239.4 | Up | 11:06:11 - 11:36:11 | -2585 |
Kingman/Dolan Springs | 11:21:11 | -34.9 | Dark | Down | 39.0 | 239.4 | Up | 11:06:11 - 11:36:11 | -2606 |
Laughlin/Bullhead City | 11:21:12 | -35.3 | Dark | Down | 39.4 | 238.9 | Up | 11:06:12 - 11:36:12 | -2621 |
Mohave Valley | 11:21:12 | -35.4 | Dark | Down | 39.5 | 239.1 | Up | 11:06:12 - 11:36:12 | -2641 |
George/Scottsdale | 11:21:01 | -33.6 | Dark | Up | 38.2 | 242.3 | Up | 11:06:01 - 11:36:01 | -2656 |
Lake Havasu City | 11:21:09 | -35.3 | Dark | Down | 39.6 | 239.6 | Up | 11:06:09 - 11:36:09 | -2663 |
Parker | 11:21:08 | -35.4 | Dark | Down | 39.7 | 239.9 | Up | 11:06:08 - 11:36:08 | -2688 |
Blythe | 11:21:08 | -35.8 | Dark | Up | 40.2 | 240.0 | Up | 11:06:08 - 11:36:08 | -2735 |
CPSLO | 11:21:29 | -40.0 | Dark | Down | 43.4 | 232.9 | Up | 11:06:29 - 11:36:29 | -2775 |
Idyllwild | 11:21:14 | -37.4 | Dark | Down | 41.7 | 238.0 | Up | 11:06:14 - 11:36:14 | -2782 |
Calipatria | 11:21:09 | -36.6 | Dark | Down | 41.1 | 239.5 | Up | 11:06:09 - 11:36:09 | -2797 |
Yuma | 11:21:05 | -36.0 | Dark | Up | 40.7 | 240.6 | Up | 11:06:05 - 11:36:05 | -2805 |
Wildwood | 11:21:20 | -38.8 | Dark | Down | 42.8 | 235.9 | Up | 11:06:20 - 11:36:20 | -2808 |
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 531015, (2022/02/26 11:23UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 20.70 131 Denebola 11:49:02.9 +14:34:17 2.1 13.98 110 79 Leo 11:24:02.3 +01:24:28 6.4 0.98 110 PPM 157763 11:20:55.9 +02:25:20 7.8 0.35 111 PPM 157789 11:22:44.5 +02:00:26 9.8 0.29 110 PPM 157785 11:22:18.4 +02:15:27 10.4 0.03 111 531015 11:22:11.2 +02:16:01 14.1 111 Positions are for J2000
Event circumstances last updated at 2020/12/31 21:30:06 UT
Marc W. Buie, Southwest Research Institute