Event between (558095) 14WA536 and star GA0760:04226775 with event index number of 2560688
Geocentric closest approach at 2022/02/28 09:42:48 UTC
J2000 position of star is 09:35:15.5 -12:54:30
Equinox of date position of star is 09:36:18.5 -13:00:22
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 143 degrees from the moon.
Moon is 7% illuminated.
TNO apparent brightness V=22.1
[RECON map]
TNO is 31.0 AU from the Sun
and 30.1 AU from the Earth.
The TNO is moving 23.6
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 62 seconds.
The 1-sigma cross-track error in the shadow position is
1275 km.
The sky-plane scale is
21855.2 km/arcsec.
The TNO has an absolute magnitude Hv=7.2
Diameter=222.9 km assuming a 5% albedo -- 9.5 sec chord
Diameter=91.0 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 5:2EEE
Star training set for 558095, (2022/02/28 09:43UT) Object RA Dec mag sep mel Regulus 10:09:33.0 +11:51:29 1.3 26.20 159 Alphard 09:28:40.6 -08:45:21 2.0 4.65 147 PPM 221675 09:33:59.6 -13:36:57 5.9 0.83 142 PPM 221747 09:36:49.4 -12:02:45 7.9 0.97 144 PPM 221734 09:36:17.8 -13:09:40 9.6 0.15 143 558095 09:36:19.6 -13:00:29 15.6 143 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 13.7 km
RECON observability=0.8 and success probability=0.0%
| 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 | 09:42:31 | -43.5 | Dark | Down | 17.5 | 221.8 | Really Low | 09:36:52 - 09:48:09 | 11739 |
| Kelowna | 09:42:29 | -43.8 | Dark | Down | 17.9 | 221.7 | Really Low | 09:36:51 - 09:48:08 | 11726 |
| Peachland | 09:42:29 | -44.0 | Dark | Down | 18.1 | 221.5 | Really Low | 09:36:51 - 09:48:08 | 11719 |
| Summerland | 09:42:30 | -44.1 | Dark | Down | 18.1 | 221.6 | Really Low | 09:36:51 - 09:48:08 | 11716 |
| Penticton | 09:42:29 | -44.2 | Dark | Down | 18.1 | 221.7 | Really Low | 09:36:51 - 09:48:08 | 11715 |
| Oliver | 09:42:26 | -44.5 | Dark | Down | 18.4 | 221.8 | Really Low | 09:36:48 - 09:48:05 | 11704 |
| Anarchist Mountain Observatory | 09:42:27 | -44.5 | Dark | Down | 18.5 | 222.0 | Really Low | 09:36:49 - 09:48:06 | 11701 |
| Tonasket | 09:42:26 | -44.8 | Dark | Down | 18.7 | 222.0 | Really Low | 09:36:47 - 09:48:04 | 11689 |
| Okanogan | 09:42:25 | -45.2 | Dark | Down | 19.0 | 221.9 | Really Low | 09:36:47 - 09:48:04 | 11677 |
| Brewster | 09:42:25 | -45.5 | Dark | Down | 19.3 | 221.8 | Really Low | 09:36:47 - 09:48:04 | 11665 |
| Manson/Chelan | 09:42:25 | -45.8 | Dark | Down | 19.7 | 221.5 | Really Low | 09:36:47 - 09:48:04 | 11654 |
| Wenatchee | 09:42:23 | -46.2 | Dark | Down | 20.1 | 221.5 | Low | 09:36:44 - 09:48:01 | 11635 |
| Victoria | 09:42:33 | -46.3 | Dark | Down | 20.5 | 218.4 | Low | 09:36:55 - 09:48:12 | 11635 |
| Ellensburg | 09:42:24 | -46.7 | Dark | Down | 20.5 | 221.4 | Low | 09:36:46 - 09:48:03 | 11618 |
| Pasco | 09:42:17 | -46.7 | Dark | Down | 20.4 | 222.8 | Low | 09:36:39 - 09:47:56 | 11607 |
| Yakima | 09:42:23 | -47.0 | Dark | Down | 20.8 | 221.5 | Low | 09:36:44 - 09:48:01 | 11603 |
| PNWRO | 09:42:15 | -46.9 | Dark | Down | 20.5 | 223.1 | Low | 09:36:37 - 09:47:54 | 11601 |
| Toppenish/White Swan | 09:42:20 | -47.1 | Dark | Down | 20.9 | 221.7 | Low | 09:36:42 - 09:47:59 | 11597 |
| Goldendale | 09:42:21 | -47.8 | Dark | Down | 21.5 | 221.4 | Low | 09:36:42 - 09:47:59 | 11571 |
| The Dalles | 09:42:20 | -48.1 | Dark | Down | 21.8 | 221.1 | Low | 09:36:42 - 09:47:59 | 11557 |
| Maupin | 09:42:19 | -48.4 | Dark | Down | 22.1 | 221.3 | Low | 09:36:41 - 09:47:58 | 11543 |
| Redmond | 09:42:17 | -49.2 | Dark | Down | 22.8 | 221.5 | Low | 09:36:38 - 09:47:55 | 11505 |
| Sisters | 09:42:17 | -49.3 | Dark | Down | 23.0 | 221.1 | Low | 09:36:39 - 09:47:56 | 11501 |
| Bend | 09:42:16 | -49.4 | Dark | Down | 23.1 | 221.4 | Low | 09:36:37 - 09:47:54 | 11495 |
| Oregon Observatory | 09:42:15 | -49.6 | Dark | Down | 23.3 | 221.3 | Low | 09:36:37 - 09:47:54 | 11486 |
| La Pine/Gilchrist | 09:42:17 | -49.8 | Dark | Down | 23.4 | 221.3 | Low | 09:36:38 - 09:47:55 | 11477 |
| Dunrhomin | 09:41:26 | -43.8 | Dark | Down | 16.7 | 236.0 | Really Low | 09:35:48 - 09:47:05 | 11474 |
| North Lake | 09:42:14 | -49.9 | Dark | Down | 23.5 | 222.0 | Low | 09:36:36 - 09:47:53 | 11466 |
| Paisley | 09:42:11 | -50.2 | Dark | Down | 23.7 | 222.5 | Low | 09:36:33 - 09:47:50 | 11447 |
| Lakeview | 09:42:10 | -50.6 | Dark | Down | 24.0 | 222.8 | Low | 09:36:31 - 09:47:48 | 11427 |
| Chiloquin | 09:42:14 | -50.9 | Dark | Down | 24.5 | 221.3 | Low | 09:36:35 - 09:47:52 | 11424 |
| Klamath Falls | 09:42:13 | -51.1 | Dark | Down | 24.7 | 221.5 | Low | 09:36:34 - 09:47:51 | 11410 |
| Cedarville | 09:42:06 | -51.0 | Dark | Down | 24.4 | 223.2 | Low | 09:36:27 - 09:47:44 | 11400 |
| Fall River/Burney | 09:42:08 | -52.0 | Dark | Down | 25.4 | 222.2 | Low | 09:36:29 - 09:47:46 | 11361 |
| Susanville | 09:42:04 | -52.2 | Dark | Down | 25.5 | 223.1 | Low | 09:36:26 - 09:47:43 | 11341 |
| Gimple | 09:42:03 | -52.5 | Dark | Down | 25.8 | 223.0 | Low | 09:36:25 - 09:47:42 | 11325 |
| Greenville | 09:42:03 | -52.5 | Dark | Down | 25.8 | 222.9 | Low | 09:36:25 - 09:47:42 | 11324 |
| Portola | 09:42:03 | -52.6 | Dark | Down | 25.8 | 223.4 | Low | 09:36:24 - 09:47:41 | 11315 |
| Quincy | 09:42:04 | -52.7 | Dark | Down | 26.0 | 223.0 | Low | 09:36:26 - 09:47:43 | 11314 |
| Reno | 09:41:58 | -52.5 | Dark | Down | 25.7 | 224.1 | Low | 09:36:19 - 09:47:36 | 11311 |
| Carson City | 09:41:59 | -52.7 | Dark | Down | 25.9 | 224.2 | Low | 09:36:20 - 09:47:37 | 11293 |
| Yerington | 09:41:57 | -52.6 | Dark | Down | 25.7 | 224.9 | Low | 09:36:18 - 09:47:35 | 11292 |
| Gardnerville | 09:41:57 | -52.9 | Dark | Down | 26.1 | 224.4 | Low | 09:36:19 - 09:47:36 | 11282 |
| Hawthorne | 09:41:54 | -52.7 | Dark | Down | 25.7 | 225.5 | Low | 09:36:15 - 09:47:32 | 11275 |
| Tonopah | 09:41:48 | -52.3 | Dark | Down | 25.3 | 226.9 | Low | 09:36:10 - 09:47:27 | 11270 |
| Lee Vining | 09:41:53 | -53.3 | Dark | Down | 26.4 | 225.2 | Low | 09:36:14 - 09:47:31 | 11241 |
| Bishop | 09:41:49 | -53.4 | Dark | Down | 26.4 | 226.1 | Low | 09:36:11 - 09:47:28 | 11218 |
| Beatty | 09:41:43 | -52.9 | Dark | Down | 25.8 | 227.7 | Low | 09:36:05 - 09:47:22 | 11214 |
| Indian Springs | 09:41:40 | -52.5 | Dark | Down | 25.4 | 228.7 | Low | 09:36:01 - 09:47:18 | 11209 |
| Henderson | 09:41:35 | -52.4 | Dark | Down | 25.3 | 229.5 | Low | 09:35:57 - 09:47:14 | 11188 |
| Patrick | 09:41:31 | -52.2 | Dark | Down | 25.1 | 230.6 | Low | 09:35:52 - 09:47:09 | 11166 |
| Kingman/Dolan Springs | 09:41:31 | -52.4 | Dark | Down | 25.3 | 230.5 | Low | 09:35:52 - 09:47:09 | 11152 |
| Laughlin/Bullhead City | 09:41:31 | -52.8 | Dark | Down | 25.7 | 230.1 | Low | 09:35:53 - 09:47:10 | 11144 |
| Mohave Valley | 09:41:32 | -52.9 | Dark | Down | 25.8 | 230.2 | Low | 09:35:53 - 09:47:10 | 11129 |
| Lake Havasu City | 09:41:29 | -53.0 | Dark | Down | 25.9 | 230.5 | Low | 09:35:51 - 09:47:08 | 11109 |
| George/Scottsdale | 09:41:19 | -51.9 | Dark | Down | 24.8 | 232.8 | Low | 09:35:41 - 09:46:58 | 11090 |
| Parker | 09:41:29 | -53.3 | Dark | Down | 26.1 | 230.7 | Low | 09:35:51 - 09:47:08 | 11090 |
| CPSLO | 09:41:50 | -56.2 | Dark | Down | 29.2 | 224.9 | Low | 09:36:12 - 09:47:29 | 11074 |
| Blythe | 09:41:27 | -53.8 | Dark | Down | 26.7 | 230.7 | Low | 09:35:49 - 09:47:06 | 11056 |
| Idyllwild | 09:41:33 | -55.0 | Dark | Down | 27.9 | 228.9 | Low | 09:35:55 - 09:47:12 | 11039 |
| Wildwood | 09:41:41 | -55.9 | Dark | Down | 28.8 | 227.1 | Low | 09:36:03 - 09:47:20 | 11035 |
| Calipatria | 09:41:29 | -54.7 | Dark | Down | 27.6 | 230.1 | Low | 09:35:51 - 09:47:08 | 11016 |
| Yuma | 09:41:26 | -54.4 | Dark | Down | 27.3 | 231.0 | Low | 09:35:47 - 09:47:04 | 11001 |
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 558095, (2022/02/28 09:43UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 26.20 159 Alphard 09:27:35.2 -08:39:30 2.0 4.65 147 PPM 221675 09:32:55.8 -13:31:01 5.9 0.83 142 PPM 221747 09:35:45.0 -11:56:46 7.9 0.97 144 PPM 221734 09:35:13.8 -13:03:41 9.6 0.15 143 558095 09:35:15.5 -12:54:30 15.6 143 Positions are for J2000
Event circumstances last updated at 2021/10/12 02:04:49 UT
Marc W. Buie, Southwest Research Institute