Event between (472651) 15DB216 and star GA0800:04243908 with event index number of 2311229
Geocentric closest approach at 2022/04/16 10:25:55 UTC
J2000 position of star is 12:32:38.6 -08:42:02
Equinox of date position of star is 12:33:47.8 -08:49:24
Stellar brightness G=14.0,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 13 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=20.1
[RECON map]
TNO is 14.2 AU from the Sun
and 13.3 AU from the Earth.
The TNO is moving 22.4
km/sec on the sky relative to the star, or,
8.4 arcsec/hr.
The 1-sigma error in the time of the event is 24 seconds.
The 1-sigma cross-track error in the shadow position is
624 km.
The sky-plane scale is
9612.3 km/arcsec.
The TNO has an absolute magnitude Hv=8.6
Diameter=117.5 km assuming a 5% albedo -- 5.2 sec chord
Diameter=48.0 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
Star training set for 472651, (2022/04/16 10:26UT) Object RA Dec mag sep mel Spica 13:26:22.2 -11:16:37 1.0 13.17 5 4Gam Crv 12:16:57.3 -17:39:56 2.6 9.74 20 21 Vir 12:34:55.9 -09:34:29 5.6 0.80 13 PPM 195573 12:32:34.6 -09:18:17 7.4 0.57 14 PPM 195587 12:33:54.6 -08:46:23 9.5 0.06 13 472651 12:33:47.8 -08:49:24 14.0 13 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 25.1 km
RECON observability=0.5 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) |
| Sleaford | 10:24:03 | -14.4 | AT | Up | 7.1 | 246.0 | Really Low | 10:21:34 - 10:26:32 | 5258 |
| Kamloops | 10:24:21 | -21.7 | Dark | Up | 15.5 | 234.1 | Really Low | 10:21:52 - 10:26:50 | 5221 |
| Kelowna | 10:24:17 | -21.9 | Dark | Up | 15.5 | 235.0 | Really Low | 10:21:48 - 10:26:46 | 5182 |
| Peachland | 10:24:17 | -22.2 | Dark | Up | 15.8 | 234.8 | Really Low | 10:21:48 - 10:26:46 | 5177 |
| Summerland | 10:24:16 | -22.2 | Dark | Up | 15.8 | 234.9 | Really Low | 10:21:47 - 10:26:45 | 5170 |
| Penticton | 10:24:16 | -22.2 | Dark | Up | 15.8 | 235.0 | Really Low | 10:21:47 - 10:26:45 | 5166 |
| Oliver | 10:24:15 | -22.5 | Dark | Up | 16.0 | 235.1 | Really Low | 10:21:46 - 10:26:44 | 5149 |
| Anarchist Mountain Observatory | 10:24:14 | -22.6 | Dark | Up | 16.0 | 235.3 | Really Low | 10:21:45 - 10:26:43 | 5141 |
| Tonasket | 10:24:13 | -22.8 | Dark | Up | 16.2 | 235.3 | Really Low | 10:21:44 - 10:26:42 | 5125 |
| Victoria | 10:24:21 | -24.6 | Dark | Up | 18.4 | 231.9 | Really Low | 10:21:52 - 10:26:50 | 5113 |
| Okanogan | 10:24:12 | -23.2 | Dark | Up | 16.5 | 235.2 | Really Low | 10:21:43 - 10:26:41 | 5107 |
| Brewster | 10:24:12 | -23.5 | Dark | Up | 16.7 | 235.1 | Really Low | 10:21:43 - 10:26:41 | 5093 |
| Manson/Chelan | 10:24:11 | -23.8 | Dark | Up | 17.1 | 234.9 | Really Low | 10:21:42 - 10:26:40 | 5083 |
| Wenatchee | 10:24:10 | -24.2 | Dark | Up | 17.4 | 234.8 | Really Low | 10:21:41 - 10:26:39 | 5058 |
| Ellensburg | 10:24:09 | -24.6 | Dark | Up | 17.8 | 234.8 | Really Low | 10:21:40 - 10:26:38 | 5036 |
| Yakima | 10:24:08 | -25.0 | Dark | Up | 18.0 | 234.8 | Really Low | 10:21:39 - 10:26:37 | 5014 |
| Toppenish/White Swan | 10:24:07 | -25.1 | Dark | Up | 18.1 | 235.0 | Really Low | 10:21:38 - 10:26:36 | 5002 |
| PNWRO | 10:24:03 | -24.7 | Dark | Up | 17.4 | 236.4 | Really Low | 10:21:34 - 10:26:32 | 4982 |
| Goldendale | 10:24:06 | -25.7 | Dark | Up | 18.6 | 234.8 | Really Low | 10:21:37 - 10:26:35 | 4972 |
| The Dalles | 10:24:06 | -26.0 | Dark | Up | 19.0 | 234.6 | Really Low | 10:21:37 - 10:26:35 | 4959 |
| Maupin | 10:24:05 | -26.3 | Dark | Up | 19.2 | 234.8 | Really Low | 10:21:36 - 10:26:34 | 4935 |
| Sisters | 10:24:03 | -27.2 | Dark | Up | 20.0 | 234.6 | Really Low | 10:21:34 - 10:26:32 | 4885 |
| Bend | 10:24:01 | -27.3 | Dark | Up | 19.9 | 234.9 | Really Low | 10:21:32 - 10:26:30 | 4871 |
| Oregon Observatory | 10:24:01 | -27.5 | Dark | Up | 20.1 | 234.8 | Low | 10:21:32 - 10:26:30 | 4861 |
| North Lake | 10:23:58 | -27.7 | Dark | Up | 20.2 | 235.5 | Low | 10:21:29 - 10:26:27 | 4824 |
| Chiloquin | 10:23:58 | -28.7 | Dark | Up | 21.1 | 234.9 | Low | 10:21:29 - 10:26:27 | 4782 |
| Klamath Falls | 10:23:57 | -28.9 | Dark | Up | 21.3 | 235.1 | Low | 10:21:28 - 10:26:26 | 4761 |
| Lakeview | 10:23:54 | -28.3 | Dark | Up | 20.4 | 236.2 | Low | 10:21:25 - 10:26:23 | 4760 |
| Cedarville | 10:23:51 | -28.7 | Dark | Up | 20.7 | 236.6 | Low | 10:21:22 - 10:26:20 | 4719 |
| Fall River/Burney | 10:23:52 | -29.6 | Dark | Up | 21.7 | 235.7 | Low | 10:21:23 - 10:26:21 | 4688 |
| Susanville | 10:23:49 | -29.8 | Dark | Up | 21.6 | 236.5 | Low | 10:21:20 - 10:26:18 | 4648 |
| Greenville | 10:23:48 | -30.1 | Dark | Up | 22.0 | 236.4 | Low | 10:21:19 - 10:26:17 | 4630 |
| Gimple | 10:23:48 | -30.1 | Dark | Up | 21.9 | 236.5 | Low | 10:21:19 - 10:26:17 | 4630 |
| Quincy | 10:23:48 | -30.3 | Dark | Up | 22.1 | 236.5 | Low | 10:21:19 - 10:26:17 | 4617 |
| Portola | 10:23:46 | -30.1 | Dark | Up | 21.8 | 236.9 | Low | 10:21:17 - 10:26:15 | 4609 |
| Dunrhomin | 10:23:17 | -21.2 | Dark | Up | 11.3 | 248.2 | Really Low | 10:20:48 - 10:25:46 | 4599 |
| Reno | 10:23:44 | -30.0 | Dark | Up | 21.6 | 237.5 | Low | 10:21:15 - 10:26:13 | 4592 |
| CU-SBO | 10:23:16 | -21.4 | Dark | Up | 11.5 | 248.1 | Really Low | 10:20:47 - 10:25:45 | 4584 |
| Carson City | 10:23:43 | -30.3 | Dark | Up | 21.8 | 237.6 | Low | 10:21:14 - 10:26:12 | 4568 |
| Yerington | 10:23:41 | -30.1 | Dark | Up | 21.4 | 238.2 | Low | 10:21:12 - 10:26:10 | 4555 |
| Gardnerville | 10:23:42 | -30.4 | Dark | Up | 21.9 | 237.7 | Low | 10:21:13 - 10:26:11 | 4552 |
| Hawthorne | 10:23:38 | -30.1 | Dark | Up | 21.3 | 238.8 | Low | 10:21:09 - 10:26:07 | 4524 |
| Tonopah | 10:23:33 | -29.7 | Dark | Up | 20.6 | 240.0 | Low | 10:21:04 - 10:26:02 | 4492 |
| Lee Vining | 10:23:37 | -30.8 | Dark | Up | 22.0 | 238.6 | Low | 10:21:08 - 10:26:06 | 4486 |
| Bishop | 10:23:34 | -30.9 | Dark | Up | 21.8 | 239.3 | Low | 10:21:05 - 10:26:03 | 4444 |
| Beatty | 10:23:29 | -30.3 | Dark | Up | 20.9 | 240.7 | Low | 10:21:00 - 10:25:58 | 4411 |
| Indian Springs | 10:23:26 | -29.9 | Dark | Up | 20.3 | 241.6 | Low | 10:20:57 - 10:25:55 | 4386 |
| Henderson | 10:23:22 | -29.8 | Dark | Up | 20.1 | 242.3 | Low | 10:20:53 - 10:25:51 | 4347 |
| Patrick | 10:23:18 | -29.6 | Dark | Up | 19.6 | 243.3 | Really Low | 10:20:49 - 10:25:47 | 4300 |
| Kingman/Dolan Springs | 10:23:17 | -29.8 | Dark | Up | 19.8 | 243.2 | Really Low | 10:20:48 - 10:25:46 | 4285 |
| Laughlin/Bullhead City | 10:23:19 | -30.2 | Dark | Up | 20.2 | 242.8 | Low | 10:20:50 - 10:25:48 | 4284 |
| Mohave Valley | 10:23:17 | -30.3 | Dark | Up | 20.3 | 242.9 | Low | 10:20:48 - 10:25:46 | 4264 |
| Lake Havasu City | 10:23:16 | -30.5 | Dark | Up | 20.3 | 243.2 | Low | 10:20:47 - 10:25:45 | 4234 |
| Wildwood | 10:23:25 | -33.3 | Dark | Up | 23.6 | 240.3 | Low | 10:20:56 - 10:25:54 | 4210 |
| Parker | 10:23:15 | -30.7 | Dark | Up | 20.5 | 243.4 | Low | 10:20:46 - 10:25:44 | 4208 |
| Idyllwild | 10:23:19 | -32.4 | Dark | Up | 22.4 | 241.8 | Low | 10:20:50 - 10:25:48 | 4183 |
| George/Scottsdale | 10:23:08 | -29.4 | Dark | Up | 18.9 | 245.2 | Really Low | 10:20:39 - 10:25:37 | 4171 |
| Calipatria | 10:23:15 | -32.1 | Dark | Up | 21.8 | 242.9 | Low | 10:20:46 - 10:25:44 | 4135 |
| Yuma | 10:23:11 | -31.8 | Dark | Up | 21.4 | 243.6 | Low | 10:20:42 - 10:25:40 | 4100 |
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 472651, (2022/04/16 10:26UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 13.17 5 4Gam Crv 12:15:48.1 -17:32:30 2.6 9.74 20 21 Vir 12:33:46.6 -09:27:07 5.6 0.80 13 PPM 195573 12:31:25.4 -09:10:54 7.4 0.57 14 PPM 195587 12:32:45.4 -08:39:01 9.5 0.06 13 472651 12:32:38.6 -08:42:02 14.0 13 Positions are for J2000
Event circumstances last updated at 2022/04/16 00:15:09 UT
Marc W. Buie, Southwest Research Institute