Event between (545361) 11GZ61 and star GA0660:06206708 with event index number of 2398794
Geocentric closest approach at 2027/04/12 08:16:45 UTC
J2000 position of star is 14:43:58.9 -23:49:09
Equinox of date position of star is 14:45:23.0 -23:55:15
Stellar brightness G=14.4,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 135 degrees from the moon.
Moon is 32% illuminated.
Apparent brightness V=21.7
[RECON map]
Object is 39.0 AU from the Sun
and 38.1 AU from the Earth.
Apparent velocity is 22.0
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 173 seconds.
The 1-sigma cross-track error in the shadow position is
1628 km.
The sky-plane scale is
27631.6 km/arcsec.
The object has an absolute magnitude Hv=5.8
Diameter=401.8 km assuming a 5% albedo -- 18.7 sec chord
Diameter=164.0 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 545361, (2027/04/12 08:17UT) Object RA Dec mag sep mel Spica 13:26:38.1 -11:18:10 1.0 22.60 113 5The Cen 14:08:18.0 -36:30:09 2.1 14.91 129 PPM 263377 14:47:41.1 -23:16:00 5.9 0.83 135 PPM 263332 14:45:52.4 -24:14:34 7.0 0.32 135 PPM 263348 14:46:21.9 -23:59:28 8.6 0.19 135 545361 14:45:33.4 -23:56:00 14.4 135 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 9.1 km
RECON observability=0.6 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 | 08:18:00 | -27.3 | Dark | Up | 14.1 | 178.0 | Really Low | 08:03:05 - 08:32:54 | 13971 |
| Kamloops | 08:18:42 | -30.6 | Dark | Up | 14.1 | 164.6 | Really Low | 08:03:47 - 08:33:36 | 13621 |
| Kelowna | 08:18:40 | -31.3 | Dark | Up | 15.0 | 165.4 | Really Low | 08:03:46 - 08:33:35 | 13613 |
| Peachland | 08:18:41 | -31.5 | Dark | Up | 15.1 | 165.1 | Really Low | 08:03:47 - 08:33:36 | 13602 |
| Penticton | 08:18:40 | -31.7 | Dark | Up | 15.3 | 165.2 | Really Low | 08:03:46 - 08:33:35 | 13598 |
| Summerland | 08:18:40 | -31.6 | Dark | Up | 15.3 | 165.1 | Really Low | 08:03:46 - 08:33:35 | 13598 |
| Oliver | 08:18:41 | -32.0 | Dark | Up | 15.7 | 165.2 | Really Low | 08:03:47 - 08:33:36 | 13585 |
| Anarchist Mountain Observatory | 08:18:40 | -32.2 | Dark | Up | 15.9 | 165.4 | Really Low | 08:03:46 - 08:33:35 | 13584 |
| Okanogan | 08:18:42 | -32.8 | Dark | Up | 16.5 | 165.1 | Really Low | 08:03:47 - 08:33:36 | 13552 |
| Dunrhomin | 08:17:54 | -38.0 | Dark | Down | 25.9 | 178.6 | Low | 08:02:59 - 08:32:48 | 13545 |
| Brewster | 08:18:42 | -33.1 | Dark | Up | 16.7 | 164.9 | Really Low | 08:03:48 - 08:33:37 | 13537 |
| Nikitin | 08:17:53 | -38.2 | Dark | Down | 26.1 | 178.6 | Low | 08:02:59 - 08:32:48 | 13536 |
| CU-SBO | 08:17:55 | -38.3 | Dark | Down | 26.2 | 178.5 | Low | 08:03:00 - 08:32:49 | 13531 |
| Manson/Chelan | 08:18:44 | -33.3 | Dark | Up | 16.8 | 164.6 | Really Low | 08:03:49 - 08:33:38 | 13519 |
| Wenatchee | 08:18:44 | -33.8 | Dark | Up | 17.3 | 164.4 | Really Low | 08:03:50 - 08:33:39 | 13495 |
| PNWRO | 08:18:40 | -35.1 | Dark | Up | 18.9 | 165.6 | Really Low | 08:03:45 - 08:33:34 | 13473 |
| Ellensburg | 08:18:44 | -34.2 | Dark | Up | 17.6 | 164.1 | Really Low | 08:03:50 - 08:33:39 | 13472 |
| Victoria | 08:18:52 | -32.8 | Dark | Up | 15.6 | 161.6 | Really Low | 08:03:57 - 08:33:46 | 13459 |
| Yakima | 08:18:45 | -34.7 | Dark | Up | 18.0 | 164.1 | Really Low | 08:03:50 - 08:33:39 | 13454 |
| Toppenish/White Swan | 08:18:44 | -34.9 | Dark | Up | 18.3 | 164.2 | Really Low | 08:03:50 - 08:33:39 | 13449 |
| The Dalles | 08:18:48 | -35.7 | Dark | Up | 18.8 | 163.4 | Really Low | 08:03:53 - 08:33:42 | 13393 |
| Maupin | 08:18:48 | -36.1 | Dark | Up | 19.3 | 163.5 | Really Low | 08:03:53 - 08:33:42 | 13377 |
| Sisters | 08:18:51 | -37.0 | Dark | Up | 20.0 | 162.9 | Low | 08:03:57 - 08:33:46 | 13323 |
| Bend | 08:18:49 | -37.2 | Dark | Up | 20.3 | 163.1 | Low | 08:03:55 - 08:33:44 | 13319 |
| Oregon Observatory | 08:18:50 | -37.4 | Dark | Up | 20.4 | 163.0 | Low | 08:03:55 - 08:33:44 | 13308 |
| Chiloquin | 08:18:52 | -38.7 | Dark | Up | 21.6 | 162.5 | Low | 08:03:57 - 08:33:46 | 13231 |
| Cedarville | 08:18:48 | -39.7 | Dark | Up | 23.0 | 164.0 | Low | 08:03:53 - 08:33:42 | 13228 |
| Klamath Falls | 08:18:50 | -39.1 | Dark | Up | 21.9 | 162.5 | Low | 08:03:56 - 08:33:45 | 13216 |
| Fall River/Burney | 08:18:51 | -40.2 | Dark | Up | 23.2 | 162.7 | Low | 08:03:57 - 08:33:46 | 13167 |
| Gimple | 08:18:49 | -41.1 | Dark | Up | 24.1 | 163.1 | Low | 08:03:55 - 08:33:44 | 13134 |
| Reno | 08:18:45 | -41.6 | Dark | Up | 24.9 | 164.0 | Low | 08:03:50 - 08:33:39 | 13134 |
| Greenville | 08:18:49 | -41.1 | Dark | Up | 24.1 | 163.0 | Low | 08:03:54 - 08:33:43 | 13132 |
| Portola | 08:18:48 | -41.4 | Dark | Up | 24.5 | 163.5 | Low | 08:03:53 - 08:33:42 | 13129 |
| Yerington | 08:18:42 | -42.1 | Dark | Down | 25.6 | 164.6 | Low | 08:03:48 - 08:33:37 | 13123 |
| Quincy | 08:18:50 | -41.3 | Dark | Up | 24.3 | 163.0 | Low | 08:03:56 - 08:33:45 | 13121 |
| Carson City | 08:18:46 | -42.0 | Dark | Up | 25.3 | 164.0 | Low | 08:03:51 - 08:33:40 | 13115 |
| Hawthorne | 08:18:42 | -42.5 | Dark | Down | 26.2 | 165.1 | Low | 08:03:48 - 08:33:37 | 13113 |
| Gardnerville | 08:18:45 | -42.2 | Dark | Up | 25.5 | 164.0 | Low | 08:03:50 - 08:33:39 | 13103 |
| Beatty | 08:18:35 | -43.9 | Dark | Down | 28.1 | 166.7 | Low | 08:03:40 - 08:33:29 | 13076 |
| Patrick | 08:18:25 | -44.8 | Dark | Down | 30.0 | 169.5 | Up | 08:03:30 - 08:33:19 | 13073 |
| Lee Vining | 08:18:43 | -43.1 | Dark | Down | 26.6 | 164.5 | Low | 08:03:49 - 08:33:38 | 13067 |
| Bishop | 08:18:41 | -43.6 | Dark | Down | 27.3 | 165.2 | Low | 08:03:46 - 08:33:35 | 13055 |
| Laughlin/Bullhead City | 08:18:26 | -45.2 | Dark | Down | 30.2 | 168.7 | Up | 08:03:32 - 08:33:21 | 13038 |
| George/Scottsdale | 08:18:18 | -46.0 | Dark | Down | 32.0 | 171.4 | Up | 08:03:23 - 08:33:12 | 13028 |
| Lake Havasu City | 08:18:25 | -45.8 | Dark | Down | 30.9 | 168.9 | Up | 08:03:30 - 08:33:19 | 13005 |
| Idyllwild | 08:18:34 | -47.0 | Dark | Down | 31.2 | 166.3 | Up | 08:03:40 - 08:33:29 | 12890 |
| Calipatria | 08:18:32 | -47.4 | Dark | Down | 32.0 | 167.5 | Up | 08:03:37 - 08:33:26 | 12887 |
| Yuma | 08:18:28 | -47.6 | Dark | Down | 32.6 | 168.4 | Up | 08:03:34 - 08:33:23 | 12886 |
| Wildwood | 08:18:42 | -46.9 | Dark | Down | 30.4 | 164.5 | Up | 08:03:47 - 08:33:36 | 12854 |
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 545361, (2027/04/12 08:17UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 22.60 113 5The Cen 14:06:39.9 -36:22:24 2.1 14.91 129 PPM 263377 14:46:06.8 -23:09:12 5.9 0.83 135 PPM 263332 14:44:17.7 -24:07:43 7.0 0.32 135 PPM 263348 14:44:47.3 -23:52:38 8.6 0.19 135 545361 14:43:58.9 -23:49:09 14.4 135 Positions are for J2000
Event circumstances last updated at 2024/04/18 03:47:13 UT
Marc W. Buie, Southwest Research Institute