Event between (341275) 07RG283 and star GA1300:03633440 with event index number of 2200247
Geocentric closest approach at 2021/12/11 10:13:25 UTC
J2000 position of star is 06:46:29.4 +41:12:09
Equinox of date position of star is 06:48:01.6 +41:10:40
Stellar brightness G=16.0,
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 54% illuminated.
TNO apparent brightness V=20.5
[RECON map]
TNO is 15.3 AU from the Sun
and 14.4 AU from the Earth.
The TNO is moving 20.8
km/sec on the sky relative to the star, or,
7.2 arcsec/hr.
The 1-sigma error in the time of the event is 81 seconds.
The 1-sigma cross-track error in the shadow position is
1000 km.
The sky-plane scale is
10451.9 km/arcsec.
The TNO has an absolute magnitude Hv=8.6
Diameter=113.2 km assuming a 5% albedo -- 5.4 sec chord
Diameter=46.2 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
Star training set for 341275, (2021/12/11 10:13UT) Object RA Dec mag sep mel Pollux 07:46:39.4 +27:58:17 1.1 17.84 120 34Bet Aur 06:01:08.4 +44:56:50 1.9 9.35 97 58Psi7Aur 06:52:18.9 +41:45:12 6.0 0.99 107 PPM 049350 06:49:54.3 +41:16:34 8.4 0.37 106 PPM 049332 06:48:28.9 +41:09:19 9.1 0.09 106 341275 06:48:02.0 +41:10:39 16.0 106 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 25.2 km
RECON observability=1.0 and success probability=14.1%
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 | 10:12:46 | -51.2 | Dark | Down | 77.4 | 228.9 | Up | 10:05:29 - 10:20:02 | 3256 |
Kelowna | 10:12:46 | -51.5 | Dark | Down | 77.7 | 229.8 | Up | 10:05:30 - 10:20:03 | 3212 |
Peachland | 10:12:47 | -51.7 | Dark | Down | 78.0 | 229.4 | Up | 10:05:30 - 10:20:03 | 3196 |
Summerland | 10:12:46 | -51.7 | Dark | Down | 78.0 | 230.2 | Up | 10:05:30 - 10:20:03 | 3181 |
Penticton | 10:12:46 | -51.7 | Dark | Down | 78.0 | 230.7 | Up | 10:05:30 - 10:20:03 | 3176 |
Oliver | 10:12:46 | -51.9 | Dark | Down | 78.2 | 232.0 | Up | 10:05:29 - 10:20:02 | 3138 |
Anarchist Mountain Observatory | 10:12:45 | -51.9 | Dark | Down | 78.2 | 233.2 | Up | 10:05:28 - 10:20:01 | 3123 |
Tonasket | 10:12:45 | -52.1 | Dark | Down | 78.4 | 234.2 | Up | 10:05:28 - 10:20:01 | 3088 |
Okanogan | 10:12:45 | -52.3 | Dark | Down | 78.7 | 235.2 | Up | 10:05:28 - 10:20:01 | 3050 |
Brewster | 10:12:45 | -52.6 | Dark | Down | 79.0 | 235.8 | Up | 10:05:29 - 10:20:02 | 3018 |
Victoria | 10:12:58 | -54.4 | Dark | Down | 80.5 | 222.7 | Up | 10:05:42 - 10:20:15 | 3015 |
Manson/Chelan | 10:12:46 | -52.9 | Dark | Down | 79.3 | 235.7 | Up | 10:05:30 - 10:20:03 | 2990 |
Wenatchee | 10:12:46 | -53.2 | Dark | Down | 79.7 | 237.4 | Up | 10:05:30 - 10:20:03 | 2936 |
Ellensburg | 10:12:46 | -53.6 | Dark | Down | 80.0 | 238.7 | Up | 10:05:30 - 10:20:03 | 2888 |
Yakima | 10:12:46 | -53.8 | Dark | Down | 80.2 | 240.7 | Up | 10:05:30 - 10:20:03 | 2843 |
Pasco | 10:12:41 | -53.1 | Dark | Down | 79.5 | 245.9 | Up | 10:05:24 - 10:19:57 | 2829 |
Toppenish/White Swan | 10:12:45 | -53.8 | Dark | Down | 80.2 | 242.2 | Up | 10:05:29 - 10:20:02 | 2823 |
PNWRO | 10:12:39 | -53.0 | Dark | Down | 79.5 | 247.6 | Up | 10:05:23 - 10:19:56 | 2806 |
Goldendale | 10:12:46 | -54.3 | Dark | Down | 80.7 | 244.1 | Up | 10:05:30 - 10:20:03 | 2756 |
The Dalles | 10:12:47 | -54.6 | Dark | Down | 81.1 | 244.4 | Up | 10:05:31 - 10:20:04 | 2726 |
Maupin | 10:12:46 | -54.7 | Dark | Down | 81.2 | 247.1 | Up | 10:05:30 - 10:20:03 | 2682 |
Redmond | 10:12:46 | -55.2 | Dark | Down | 81.5 | 252.5 | Up | 10:05:29 - 10:20:02 | 2583 |
Sisters | 10:12:47 | -55.5 | Dark | Down | 81.8 | 251.4 | Up | 10:05:31 - 10:20:04 | 2579 |
Bend | 10:12:46 | -55.4 | Dark | Down | 81.7 | 253.6 | Up | 10:05:30 - 10:20:03 | 2557 |
Oregon Observatory | 10:12:47 | -55.6 | Dark | Down | 81.8 | 254.4 | Up | 10:05:30 - 10:20:03 | 2536 |
La Pine/Gilchrist | 10:12:46 | -55.7 | Dark | Down | 81.9 | 255.7 | Up | 10:05:30 - 10:20:03 | 2513 |
Dunrhomin | 10:11:41 | -45.2 | Dark | Down | 70.0 | 281.4 | Up | 10:04:25 - 10:18:58 | 2512 |
North Lake | 10:12:44 | -55.5 | Dark | Down | 81.6 | 259.7 | Up | 10:05:27 - 10:20:00 | 2475 |
Paisley | 10:12:42 | -55.5 | Dark | Down | 81.4 | 263.8 | Up | 10:05:25 - 10:19:58 | 2421 |
Chiloquin | 10:12:47 | -56.4 | Dark | Down | 82.4 | 263.1 | Up | 10:05:30 - 10:20:03 | 2387 |
Lakeview | 10:12:40 | -55.6 | Dark | Down | 81.3 | 267.4 | Up | 10:05:24 - 10:19:57 | 2368 |
Klamath Falls | 10:12:46 | -56.5 | Dark | Down | 82.4 | 265.7 | Up | 10:05:30 - 10:20:03 | 2350 |
Cedarville | 10:12:39 | -55.7 | Dark | Down | 81.2 | 271.8 | Up | 10:05:23 - 10:19:56 | 2300 |
Fall River/Burney | 10:12:44 | -56.7 | Dark | Down | 82.1 | 274.6 | Up | 10:05:27 - 10:20:00 | 2227 |
Susanville | 10:12:40 | -56.4 | Dark | Down | 81.5 | 279.0 | Up | 10:05:23 - 10:19:56 | 2170 |
Gimple | 10:12:40 | -56.7 | Dark | Down | 81.6 | 280.8 | Up | 10:05:24 - 10:19:57 | 2137 |
Greenville | 10:12:41 | -56.7 | Dark | Down | 81.6 | 280.8 | Up | 10:05:24 - 10:19:57 | 2136 |
Quincy | 10:12:41 | -56.8 | Dark | Down | 81.6 | 282.2 | Up | 10:05:24 - 10:19:57 | 2114 |
Portola | 10:12:39 | -56.5 | Dark | Down | 81.2 | 282.8 | Up | 10:05:22 - 10:19:55 | 2108 |
Reno | 10:12:36 | -56.1 | Dark | Down | 80.7 | 284.1 | Up | 10:05:19 - 10:19:52 | 2090 |
Carson City | 10:12:35 | -56.2 | Dark | Down | 80.6 | 286.2 | Up | 10:05:19 - 10:19:52 | 2051 |
Yerington | 10:12:33 | -55.8 | Dark | Down | 80.0 | 286.9 | Up | 10:05:16 - 10:19:49 | 2041 |
Gardnerville | 10:12:35 | -56.3 | Dark | Down | 80.5 | 287.6 | Up | 10:05:18 - 10:19:51 | 2025 |
Hawthorne | 10:12:30 | -55.6 | Dark | Down | 79.5 | 289.0 | Up | 10:05:13 - 10:19:46 | 2001 |
Tonopah | 10:12:24 | -54.6 | Dark | Down | 78.3 | 290.2 | Up | 10:05:07 - 10:19:40 | 1977 |
Lee Vining | 10:12:31 | -56.1 | Dark | Down | 79.7 | 292.3 | Up | 10:05:15 - 10:19:48 | 1930 |
Bishop | 10:12:28 | -55.7 | Dark | Down | 78.9 | 294.4 | Up | 10:05:11 - 10:19:44 | 1879 |
Beatty | 10:12:21 | -54.6 | Dark | Down | 77.6 | 294.9 | Up | 10:05:04 - 10:19:37 | 1862 |
Indian Springs | 10:12:16 | -53.8 | Dark | Down | 76.7 | 295.2 | Up | 10:04:59 - 10:19:32 | 1850 |
Henderson | 10:12:12 | -53.3 | Dark | Down | 75.9 | 296.6 | Up | 10:04:56 - 10:19:29 | 1808 |
Patrick | 10:12:07 | -52.6 | Dark | Down | 74.8 | 297.8 | Up | 10:04:51 - 10:19:24 | 1766 |
Kingman/Dolan Springs | 10:12:08 | -52.7 | Dark | Down | 74.9 | 298.7 | Up | 10:04:51 - 10:19:24 | 1738 |
Laughlin/Bullhead City | 10:12:10 | -53.2 | Dark | Down | 75.2 | 299.2 | Up | 10:04:53 - 10:19:26 | 1724 |
Mohave Valley | 10:12:09 | -53.2 | Dark | Down | 75.1 | 300.1 | Up | 10:04:53 - 10:19:26 | 1695 |
Lake Havasu City | 10:12:08 | -53.1 | Dark | Down | 74.7 | 301.2 | Up | 10:04:51 - 10:19:24 | 1658 |
George/Scottsdale | 10:11:57 | -51.1 | Dark | Down | 72.6 | 301.3 | Up | 10:04:40 - 10:19:13 | 1636 |
Parker | 10:12:07 | -53.1 | Dark | Down | 74.5 | 302.2 | Up | 10:04:51 - 10:19:24 | 1621 |
CPSLO | 10:12:35 | -57.9 | Dark | Down | 79.4 | 307.2 | Up | 10:05:18 - 10:19:51 | 1614 |
Blythe | 10:12:08 | -53.4 | Dark | Down | 74.4 | 304.1 | Up | 10:04:51 - 10:19:24 | 1558 |
Idyllwild | 10:12:17 | -55.1 | Dark | Down | 75.9 | 306.4 | Up | 10:05:00 - 10:19:33 | 1522 |
Wildwood | 10:12:25 | -56.6 | Dark | Down | 77.4 | 308.1 | Up | 10:05:09 - 10:19:42 | 1522 |
Calipatria | 10:12:11 | -54.2 | Dark | Down | 74.8 | 306.7 | Up | 10:04:55 - 10:19:28 | 1483 |
Yuma | 10:12:07 | -53.5 | Dark | Down | 73.9 | 306.8 | Up | 10:04:51 - 10:19:24 | 1458 |
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 341275, (2021/12/11 10:13UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 17.84 120 34Bet Aur 05:59:31.6 +44:56:51 1.9 9.35 97 58Psi7Aur 06:50:45.9 +41:46:50 6.0 0.99 107 PPM 049350 06:48:21.7 +41:18:08 8.4 0.37 106 PPM 049332 06:46:56.3 +41:10:50 9.1 0.09 106 341275 06:46:29.4 +41:12:09 16.0 106 Positions are for J2000
Event circumstances last updated at 2021/11/02 00:37:44 UT
Marc W. Buie, Southwest Research Institute