Event between (524457) 02FW6 and star GA0780:04567392 with event index number of 2100679
Geocentric closest approach at 2027/04/02 06:18:09 UTC
J2000 position of star is 14:31:15.5 -11:26:06
Equinox of date position of star is 14:32:29.7 -11:32:08
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 98 degrees from the moon.
Moon is 21% illuminated.
TNO apparent brightness V=23.6
[RECON map]
TNO is 38.4 AU from the Sun
and 37.6 AU from the Earth.
The TNO is moving 21.6
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 407 seconds.
The 1-sigma cross-track error in the shadow position is
3372 km.
The sky-plane scale is
27235.5 km/arcsec.
The TNO has an absolute magnitude Hv=7.7
Diameter=190.6 km assuming a 5% albedo -- 8.1 sec chord
Diameter=77.8 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is 4:3E
Star training set for 524457, (2027/04/02 06:47UT) Object RA Dec mag sep mel Spica 13:26:38.0 -11:18:10 1.0 16.20 114 27Bet Lib 15:18:28.7 -09:28:54 2.6 11.43 88 PPM 229046 14:38:27.4 -12:25:13 6.2 1.65 97 PPM 228914 14:32:47.0 -11:59:24 8.5 0.44 98 PPM 228911 14:32:41.9 -11:30:11 9.7 0.05 98 524457 14:32:43.8 -11:33:17 15.9 98 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
2.2 sigma about the mid-time.
The median site spacing is 20.6 km
RECON observability=0.4 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 | 06:21:21 | -32.2 | Dark | Down | 18.5 | 140.4 | Really Low | 06:06:21 - 06:36:21 | 11534 |
| Kamloops | 06:21:51 | -30.2 | Dark | Down | 13.1 | 127.2 | Really Low | 06:06:51 - 06:36:51 | 11050 |
| Kelowna | 06:21:52 | -31.2 | Dark | Down | 14.0 | 127.8 | Really Low | 06:06:52 - 06:36:52 | 11009 |
| Peachland | 06:21:50 | -31.2 | Dark | Down | 13.9 | 127.5 | Really Low | 06:06:50 - 06:36:50 | 10992 |
| Summerland | 06:21:52 | -31.3 | Dark | Down | 14.1 | 127.6 | Really Low | 06:06:52 - 06:36:52 | 10983 |
| Penticton | 06:21:52 | -31.4 | Dark | Down | 14.2 | 127.7 | Really Low | 06:06:52 - 06:36:52 | 10980 |
| Oliver | 06:21:53 | -31.7 | Dark | Down | 14.4 | 127.6 | Really Low | 06:06:53 - 06:36:53 | 10952 |
| Anarchist Mountain Observatory | 06:21:52 | -32.0 | Dark | Down | 14.6 | 127.7 | Really Low | 06:06:52 - 06:36:52 | 10944 |
| Okanogan | 06:21:54 | -32.4 | Dark | Down | 14.9 | 127.4 | Really Low | 06:06:54 - 06:36:54 | 10886 |
| Brewster | 06:21:55 | -32.6 | Dark | Down | 14.9 | 127.2 | Really Low | 06:06:55 - 06:36:55 | 10858 |
| Manson/Chelan | 06:21:56 | -32.7 | Dark | Down | 14.9 | 126.8 | Really Low | 06:06:56 - 06:36:56 | 10831 |
| Victoria | 06:22:01 | -31.0 | Dark | Down | 12.7 | 124.2 | Really Low | 06:07:01 - 06:37:01 | 10797 |
| Wenatchee | 06:21:56 | -33.0 | Dark | Down | 15.1 | 126.6 | Really Low | 06:06:56 - 06:36:56 | 10788 |
| Ellensburg | 06:21:59 | -33.3 | Dark | Down | 15.2 | 126.3 | Really Low | 06:06:59 - 06:36:59 | 10747 |
| Yakima | 06:21:59 | -33.6 | Dark | Down | 15.4 | 126.2 | Really Low | 06:06:59 - 06:36:59 | 10713 |
| PNWRO | 06:21:57 | -34.7 | Dark | Down | 16.7 | 127.5 | Really Low | 06:06:57 - 06:36:57 | 10711 |
| Toppenish/White Swan | 06:21:59 | -33.9 | Dark | Down | 15.6 | 126.3 | Really Low | 06:06:59 - 06:36:59 | 10700 |
| Dunrhomin | 06:21:32 | -43.8 | Dark | Down | 27.9 | 137.9 | Low | 06:06:32 - 06:36:32 | 10659 |
| CU-SBO | 06:21:31 | -44.0 | Dark | Down | 28.0 | 137.7 | Low | 06:06:31 - 06:36:31 | 10635 |
| The Dalles | 06:22:02 | -34.3 | Dark | Down | 15.7 | 125.5 | Really Low | 06:07:02 - 06:37:02 | 10612 |
| Maupin | 06:22:02 | -34.6 | Dark | Down | 16.0 | 125.5 | Really Low | 06:07:02 - 06:37:02 | 10579 |
| Sisters | 06:22:06 | -35.2 | Dark | Down | 16.2 | 124.9 | Really Low | 06:07:06 - 06:37:06 | 10490 |
| Bend | 06:22:04 | -35.5 | Dark | Down | 16.5 | 125.0 | Really Low | 06:07:04 - 06:37:04 | 10477 |
| Oregon Observatory | 06:22:04 | -35.6 | Dark | Down | 16.5 | 124.9 | Really Low | 06:07:04 - 06:37:04 | 10459 |
| Chiloquin | 06:22:08 | -36.5 | Dark | Down | 17.0 | 124.2 | Really Low | 06:07:08 - 06:37:08 | 10331 |
| Klamath Falls | 06:22:06 | -36.8 | Dark | Down | 17.2 | 124.2 | Really Low | 06:07:06 - 06:37:06 | 10304 |
| Cedarville | 06:22:05 | -38.1 | Dark | Down | 18.6 | 125.3 | Really Low | 06:07:05 - 06:37:05 | 10290 |
| Fall River/Burney | 06:22:09 | -38.0 | Dark | Down | 18.2 | 124.2 | Really Low | 06:07:09 - 06:37:09 | 10210 |
| Gimple | 06:22:09 | -38.9 | Dark | Down | 19.0 | 124.4 | Really Low | 06:07:09 - 06:37:09 | 10145 |
| Greenville | 06:22:08 | -38.9 | Dark | Down | 18.9 | 124.3 | Really Low | 06:07:08 - 06:37:08 | 10143 |
| Portola | 06:22:09 | -39.4 | Dark | Down | 19.4 | 124.6 | Really Low | 06:07:09 - 06:37:09 | 10128 |
| Quincy | 06:22:09 | -39.1 | Dark | Down | 19.1 | 124.3 | Really Low | 06:07:09 - 06:37:09 | 10124 |
| Reno | 06:22:06 | -39.9 | Dark | Down | 20.0 | 125.0 | Really Low | 06:07:06 - 06:37:06 | 10124 |
| Yerington | 06:22:06 | -40.6 | Dark | Down | 20.7 | 125.4 | Low | 06:07:06 - 06:37:06 | 10095 |
| Carson City | 06:22:08 | -40.2 | Dark | Down | 20.2 | 124.9 | Low | 06:07:08 - 06:37:08 | 10093 |
| Gardnerville | 06:22:08 | -40.4 | Dark | Down | 20.4 | 124.9 | Low | 06:07:08 - 06:37:08 | 10072 |
| Hawthorne | 06:22:06 | -41.2 | Dark | Down | 21.3 | 125.7 | Low | 06:07:06 - 06:37:06 | 10070 |
| Lee Vining | 06:22:06 | -41.5 | Dark | Down | 21.3 | 125.1 | Low | 06:07:06 - 06:37:06 | 10003 |
| Beatty | 06:22:04 | -43.4 | Dark | Down | 23.5 | 126.6 | Low | 06:07:04 - 06:37:04 | 9983 |
| Bishop | 06:22:08 | -42.3 | Dark | Down | 22.2 | 125.5 | Low | 06:07:08 - 06:37:08 | 9972 |
| Patrick | 06:21:58 | -45.8 | Dark | Down | 26.2 | 128.4 | Low | 06:06:58 - 06:36:58 | 9945 |
| Laughlin/Bullhead City | 06:21:59 | -45.8 | Dark | Down | 25.9 | 127.7 | Low | 06:06:59 - 06:36:59 | 9898 |
| George/Scottsdale | 06:21:53 | -48.1 | Dark | Down | 28.6 | 129.4 | Low | 06:06:53 - 06:36:53 | 9860 |
| Lake Havasu City | 06:22:01 | -46.5 | Dark | Down | 26.5 | 127.7 | Low | 06:07:01 - 06:37:01 | 9845 |
| Idyllwild | 06:22:04 | -46.1 | Dark | Down | 25.4 | 125.5 | Low | 06:07:04 - 06:37:04 | 9693 |
| Calipatria | 06:22:03 | -47.1 | Dark | Down | 26.5 | 126.2 | Low | 06:07:03 - 06:37:03 | 9677 |
| Yuma | 06:22:02 | -47.9 | Dark | Down | 27.4 | 126.7 | Low | 06:07:02 - 06:37:02 | 9668 |
| Wildwood | 06:22:09 | -44.9 | Dark | Down | 23.9 | 124.2 | Low | 06:07:09 - 06:37:09 | 9662 |
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 524457, (2027/04/02 06:47UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 16.20 114 27Bet Lib 15:17:00.3 -09:22:59 2.6 11.43 88 PPM 229046 14:36:58.5 -12:18:12 6.2 1.65 97 PPM 228914 14:31:18.5 -11:52:13 8.5 0.44 98 PPM 228911 14:31:13.6 -11:23:01 9.7 0.05 98 524457 14:31:15.5 -11:26:06 15.9 98 Positions are for J2000
Event circumstances last updated at 2022/11/19 03:05:09 UT
Marc W. Buie, Southwest Research Institute