Event between (449097) 12UT68 and star GA1260:03253436 with event index number of 2289236
Geocentric closest approach at 2022/02/22 05:30:59 UTC
J2000 position of star is 08:04:28.3 +36:22:29
Equinox of date position of star is 08:05:54.9 +36:18:38
Stellar brightness G=14.3,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 105 degrees from the moon.
Moon is 69% illuminated.
TNO apparent brightness V=21.5
[RECON map]
TNO is 15.3 AU from the Sun
and 14.5 AU from the Earth.
The TNO is moving 16.4
km/sec on the sky relative to the star, or,
5.6 arcsec/hr.
The 1-sigma error in the time of the event is 55 seconds.
The 1-sigma cross-track error in the shadow position is
542 km.
The sky-plane scale is
10527.7 km/arcsec.
The TNO has an absolute magnitude Hv=9.5
Diameter=75.2 km assuming a 5% albedo -- 4.6 sec chord
Diameter=30.7 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 449097, (2022/02/22 05:31UT) Object RA Dec mag sep mel Pollux 07:46:40.1 +27:58:15 1.1 9.28 108 PPM 073264 07:57:07.2 +35:21:09 6.1 2.02 107 PPM 073369 08:05:06.6 +36:16:51 8.4 0.17 105 449097 08:05:55.0 +36:18:38 14.3 105 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 31.1 km
RECON observability=1.0 and success probability=0.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 05:30:23 | -42.8 | Dark | Down | 73.4 | 202.1 | Up | 05:25:17 - 05:35:29 | 3928 |
| Kamloops | 05:31:24 | -37.5 | Dark | Down | 75.0 | 159.4 | Up | 05:26:18 - 05:36:30 | 3817 |
| Kelowna | 05:31:21 | -38.4 | Dark | Down | 75.9 | 161.0 | Up | 05:26:15 - 05:36:27 | 3723 |
| Peachland | 05:31:23 | -38.3 | Dark | Down | 76.0 | 160.0 | Up | 05:26:17 - 05:36:29 | 3713 |
| Summerland | 05:31:22 | -38.5 | Dark | Down | 76.1 | 160.1 | Up | 05:26:16 - 05:36:28 | 3697 |
| Penticton | 05:31:22 | -38.6 | Dark | Down | 76.2 | 160.3 | Up | 05:26:16 - 05:36:28 | 3689 |
| Oliver | 05:31:22 | -38.8 | Dark | Down | 76.5 | 159.8 | Up | 05:26:16 - 05:36:28 | 3651 |
| Anarchist Mountain Observatory | 05:31:21 | -39.0 | Dark | Down | 76.7 | 160.2 | Up | 05:26:15 - 05:36:27 | 3631 |
| Victoria | 05:31:40 | -37.1 | Dark | Down | 76.0 | 146.7 | Up | 05:26:34 - 05:36:46 | 3614 |
| Tonasket | 05:31:22 | -39.1 | Dark | Down | 77.0 | 159.5 | Up | 05:26:16 - 05:36:28 | 3598 |
| Okanogan | 05:31:23 | -39.2 | Dark | Down | 77.3 | 158.5 | Up | 05:26:17 - 05:36:29 | 3563 |
| Brewster | 05:31:24 | -39.3 | Dark | Down | 77.5 | 157.4 | Up | 05:26:18 - 05:36:30 | 3535 |
| Manson/Chelan | 05:31:26 | -39.2 | Dark | Down | 77.6 | 155.7 | Up | 05:26:20 - 05:36:32 | 3516 |
| Wenatchee | 05:31:27 | -39.4 | Dark | Down | 78.0 | 154.2 | Up | 05:26:21 - 05:36:33 | 3466 |
| Ellensburg | 05:31:28 | -39.5 | Dark | Down | 78.3 | 152.5 | Up | 05:26:22 - 05:36:34 | 3423 |
| Yakima | 05:31:29 | -39.7 | Dark | Down | 78.6 | 151.5 | Up | 05:26:23 - 05:36:35 | 3379 |
| Toppenish/White Swan | 05:31:28 | -39.9 | Dark | Down | 78.9 | 151.7 | Up | 05:26:22 - 05:36:34 | 3354 |
| PNWRO | 05:31:22 | -41.0 | Dark | Down | 79.7 | 156.7 | Up | 05:26:16 - 05:36:28 | 3302 |
| Goldendale | 05:31:31 | -40.0 | Dark | Down | 79.2 | 148.6 | Up | 05:26:25 - 05:36:37 | 3297 |
| The Dalles | 05:31:33 | -39.9 | Dark | Down | 79.3 | 146.6 | Up | 05:26:27 - 05:36:39 | 3276 |
| Maupin | 05:31:33 | -40.1 | Dark | Down | 79.7 | 145.8 | Up | 05:26:27 - 05:36:39 | 3230 |
| Sisters | 05:31:36 | -40.3 | Dark | Down | 80.2 | 141.0 | Up | 05:26:30 - 05:36:42 | 3139 |
| Bend | 05:31:34 | -40.6 | Dark | Down | 80.5 | 141.1 | Up | 05:26:28 - 05:36:40 | 3110 |
| Oregon Observatory | 05:31:36 | -40.6 | Dark | Down | 80.5 | 139.9 | Up | 05:26:30 - 05:36:42 | 3092 |
| North Lake | 05:31:33 | -41.2 | Dark | Down | 81.3 | 139.6 | Up | 05:26:27 - 05:36:39 | 3017 |
| Chiloquin | 05:31:39 | -41.0 | Dark | Down | 81.3 | 132.6 | Up | 05:26:33 - 05:36:45 | 2953 |
| Klamath Falls | 05:31:39 | -41.2 | Dark | Down | 81.6 | 131.3 | Up | 05:26:33 - 05:36:45 | 2914 |
| Lakeview | 05:31:32 | -42.1 | Dark | Down | 82.3 | 137.1 | Up | 05:26:26 - 05:36:38 | 2896 |
| Cedarville | 05:31:31 | -42.6 | Dark | Down | 82.9 | 134.4 | Up | 05:26:25 - 05:36:37 | 2822 |
| Fall River/Burney | 05:31:38 | -42.0 | Dark | Down | 82.5 | 126.2 | Up | 05:26:32 - 05:36:44 | 2781 |
| Susanville | 05:31:34 | -42.8 | Dark | Down | 83.3 | 125.2 | Up | 05:26:28 - 05:36:40 | 2704 |
| Greenville | 05:31:36 | -42.7 | Dark | Down | 83.3 | 122.0 | Up | 05:26:30 - 05:36:42 | 2677 |
| Gimple | 05:31:36 | -42.8 | Dark | Down | 83.4 | 122.3 | Up | 05:26:30 - 05:36:42 | 2676 |
| Quincy | 05:31:36 | -42.8 | Dark | Down | 83.4 | 120.5 | Up | 05:26:30 - 05:36:42 | 2655 |
| Dunrhomin | 05:30:16 | -52.2 | Dark | Down | 82.4 | 242.2 | Up | 05:25:10 - 05:35:22 | 2637 |
| Portola | 05:31:34 | -43.2 | Dark | Down | 83.8 | 121.5 | Up | 05:26:28 - 05:36:40 | 2636 |
| Reno | 05:31:31 | -43.8 | Dark | Down | 84.3 | 122.2 | Up | 05:26:25 - 05:36:37 | 2601 |
| Carson City | 05:31:31 | -43.9 | Dark | Down | 84.5 | 119.1 | Up | 05:26:25 - 05:36:37 | 2561 |
| Yerington | 05:31:28 | -44.5 | Dark | Down | 85.1 | 120.3 | Up | 05:26:22 - 05:36:34 | 2534 |
| Gardnerville | 05:31:31 | -44.1 | Dark | Down | 84.7 | 117.1 | Up | 05:26:25 - 05:36:37 | 2534 |
| Hawthorne | 05:31:26 | -45.0 | Dark | Down | 85.6 | 118.1 | Up | 05:26:20 - 05:36:32 | 2478 |
| Lee Vining | 05:31:29 | -45.0 | Dark | Down | 85.5 | 109.1 | Up | 05:26:23 - 05:36:35 | 2420 |
| Tonopah | 05:31:19 | -46.2 | Dark | Down | 86.8 | 120.9 | Up | 05:26:13 - 05:36:25 | 2416 |
| Bishop | 05:31:25 | -45.7 | Dark | Down | 86.2 | 103.8 | Up | 05:26:19 - 05:36:31 | 2348 |
| Beatty | 05:31:17 | -47.1 | Dark | Down | 87.6 | 101.7 | Up | 05:26:11 - 05:36:23 | 2284 |
| Indian Springs | 05:31:11 | -48.0 | Dark | Down | 88.5 | 96.9 | Up | 05:26:05 - 05:36:17 | 2241 |
| Henderson | 05:31:08 | -48.7 | Dark | Down | 89.0 | 70.7 | Up | 05:26:02 - 05:36:14 | 2178 |
| Patrick | 05:31:02 | -49.8 | Dark | Down | 89.0 | 5.4 | Up | 05:25:56 - 05:36:08 | 2103 |
| Laughlin/Bullhead City | 05:31:06 | -49.4 | Dark | Down | 88.6 | 28.2 | Up | 05:26:00 - 05:36:12 | 2080 |
| Kingman/Dolan Springs | 05:31:03 | -49.8 | Dark | Down | 88.8 | 11.4 | Up | 05:25:57 - 05:36:09 | 2080 |
| Mohave Valley | 05:31:06 | -49.6 | Dark | Down | 88.4 | 23.5 | Up | 05:26:00 - 05:36:12 | 2049 |
| Lake Havasu City | 05:31:05 | -49.9 | Dark | Down | 88.1 | 13.4 | Up | 05:25:59 - 05:36:11 | 2004 |
| Wildwood | 05:31:28 | -47.0 | Dark | Down | 85.5 | 58.1 | Up | 05:26:22 - 05:36:34 | 1988 |
| Parker | 05:31:04 | -50.1 | Dark | Down | 87.7 | 10.8 | Up | 05:25:58 - 05:36:10 | 1965 |
| Idyllwild | 05:31:18 | -48.6 | Dark | Down | 86.5 | 41.1 | Up | 05:26:12 - 05:36:24 | 1934 |
| George/Scottsdale | 05:30:51 | -52.1 | Dark | Down | 86.9 | 330.8 | Up | 05:25:45 - 05:35:57 | 1909 |
| Calipatria | 05:31:12 | -49.7 | Dark | Down | 86.5 | 23.2 | Up | 05:26:06 - 05:36:18 | 1859 |
| Yuma | 05:31:07 | -50.6 | Dark | Down | 86.3 | 10.6 | Up | 05:26:01 - 05:36:13 | 1806 |
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 449097, (2022/02/22 05:31UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 9.28 108 PPM 073264 07:55:40.7 +35:24:45 6.1 2.02 107 PPM 073369 08:03:39.9 +36:20:40 8.4 0.17 105 449097 08:04:28.3 +36:22:29 14.3 105 Positions are for J2000
Event circumstances last updated at 2022/02/12 01:04:33 UT
Marc W. Buie, Southwest Research Institute