Event between (523771) 14XP40 and star GA0740:04858668 with event index number of 2306690
Geocentric closest approach at 2026/03/19 12:01:23 UTC
J2000 position of star is 12:34:37.5 -15:33:00
Equinox of date position of star is 12:35:54.2 -15:41:05
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 167 degrees from the moon.
Moon is 0% illuminated.
Apparent brightness V=21.6
[RECON map]
Object is 27.8 AU from the Sun
and 26.9 AU from the Earth.
Apparent velocity is 21.3
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 95 seconds.
The 1-sigma cross-track error in the shadow position is
1366 km.
The sky-plane scale is
19507.2 km/arcsec.
The object has an absolute magnitude Hv=7.1
Diameter=233.4 km assuming a 5% albedo -- 11.0 sec chord
Diameter=95.3 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is CENTAURR
Star training set for 523771, (2026/03/19 12:04UT) Object RA Dec mag sep mel Spica 13:26:34.7 -11:17:50 1.0 13.05 161 4Gam Crv 12:17:09.5 -17:41:14 2.6 4.93 166 8Eta Crv 12:33:25.6 -16:20:27 3.9 0.89 167 PPM 226102 12:38:12.9 -15:42:58 7.7 0.53 167 PPM 226056 12:36:17.6 -15:34:35 9.7 0.14 167 523771 12:35:59.7 -15:41:39 15.1 167 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 0.0 km
RECON observability=0.1 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 | 12:00:21 | -11.2 | NT | Down | 3.5 | 238.9 | Really Low | 11:51:58 - 12:08:44 | 5470 |
| Kamloops | 12:00:43 | -20.1 | Dark | Down | 11.5 | 227.1 | Really Low | 11:52:20 - 12:09:06 | 5436 |
| Kelowna | 12:00:38 | -19.9 | Dark | Down | 11.6 | 228.0 | Really Low | 11:52:15 - 12:09:01 | 5418 |
| Peachland | 12:00:38 | -20.1 | Dark | Down | 11.9 | 227.8 | Really Low | 11:52:15 - 12:09:01 | 5414 |
| Summerland | 12:00:38 | -20.1 | Dark | Down | 11.9 | 227.9 | Really Low | 11:52:15 - 12:09:01 | 5410 |
| Penticton | 12:00:37 | -20.1 | Dark | Down | 11.9 | 228.0 | Really Low | 11:52:14 - 12:09:00 | 5408 |
| Oliver | 12:00:36 | -20.2 | Dark | Down | 12.1 | 228.0 | Really Low | 11:52:13 - 12:08:59 | 5398 |
| Anarchist Mountain Observatory | 12:00:34 | -20.2 | Dark | Down | 12.2 | 228.2 | Really Low | 11:52:11 - 12:08:57 | 5395 |
| Okanogan | 12:00:33 | -20.6 | Dark | Down | 12.7 | 228.1 | Really Low | 11:52:10 - 12:08:56 | 5374 |
| Brewster | 12:00:32 | -20.8 | Dark | Down | 13.0 | 228.0 | Really Low | 11:52:09 - 12:08:55 | 5365 |
| Victoria | 12:00:43 | -22.8 | Dark | Down | 14.4 | 224.9 | Really Low | 11:52:20 - 12:09:06 | 5361 |
| Manson/Chelan | 12:00:32 | -21.1 | Dark | Down | 13.3 | 227.7 | Really Low | 11:52:09 - 12:08:55 | 5357 |
| Wenatchee | 12:00:31 | -21.4 | Dark | Down | 13.7 | 227.7 | Really Low | 11:52:08 - 12:08:54 | 5341 |
| Ellensburg | 12:00:30 | -21.8 | Dark | Down | 14.1 | 227.6 | Really Low | 11:52:07 - 12:08:53 | 5327 |
| Yakima | 12:00:29 | -21.9 | Dark | Down | 14.4 | 227.6 | Really Low | 11:52:06 - 12:08:52 | 5314 |
| Toppenish/White Swan | 12:00:28 | -21.9 | Dark | Down | 14.5 | 227.8 | Really Low | 11:52:05 - 12:08:51 | 5307 |
| PNWRO | 12:00:23 | -21.1 | Dark | Down | 13.9 | 229.1 | Really Low | 11:52:00 - 12:08:46 | 5300 |
| The Dalles | 12:00:27 | -22.7 | Dark | Down | 15.4 | 227.3 | Really Low | 11:52:04 - 12:08:50 | 5276 |
| Maupin | 12:00:24 | -22.9 | Dark | Down | 15.6 | 227.4 | Really Low | 11:52:01 - 12:08:47 | 5262 |
| Sisters | 12:00:24 | -23.5 | Dark | Down | 16.5 | 227.2 | Really Low | 11:52:01 - 12:08:47 | 5228 |
| Bend | 12:00:22 | -23.5 | Dark | Down | 16.5 | 227.5 | Really Low | 11:51:59 - 12:08:45 | 5220 |
| Oregon Observatory | 12:00:22 | -23.6 | Dark | Down | 16.7 | 227.4 | Really Low | 11:51:59 - 12:08:45 | 5213 |
| Chiloquin | 12:00:18 | -24.5 | Dark | Down | 17.8 | 227.3 | Really Low | 11:51:55 - 12:08:41 | 5158 |
| Klamath Falls | 12:00:16 | -24.5 | Dark | Down | 18.0 | 227.5 | Really Low | 11:51:53 - 12:08:39 | 5144 |
| Cedarville | 12:00:10 | -23.7 | Dark | Down | 17.6 | 229.0 | Really Low | 11:51:47 - 12:08:33 | 5123 |
| Fall River/Burney | 12:00:11 | -24.8 | Dark | Down | 18.6 | 228.1 | Really Low | 11:51:48 - 12:08:34 | 5096 |
| Dunrhomin | 11:59:30 | -13.4 | AT | Down | 9.2 | 240.5 | Really Low | 11:51:07 - 12:07:53 | 5062 |
| Gimple | 12:00:06 | -24.8 | Dark | Down | 18.9 | 228.7 | Really Low | 11:51:43 - 12:08:29 | 5058 |
| Greenville | 12:00:07 | -24.8 | Dark | Down | 19.0 | 228.7 | Really Low | 11:51:44 - 12:08:30 | 5058 |
| Nikitin | 11:59:30 | -13.4 | AT | Down | 9.3 | 240.5 | Really Low | 11:51:07 - 12:07:53 | 5054 |
| CU-SBO | 11:59:30 | -13.5 | AT | Down | 9.4 | 240.5 | Really Low | 11:51:07 - 12:07:53 | 5051 |
| Quincy | 12:00:06 | -24.9 | Dark | Down | 19.1 | 228.7 | Really Low | 11:51:43 - 12:08:29 | 5049 |
| Portola | 12:00:06 | -24.6 | Dark | Down | 18.9 | 229.1 | Really Low | 11:51:43 - 12:08:29 | 5046 |
| Reno | 12:00:02 | -24.2 | Dark | Down | 18.7 | 229.7 | Really Low | 11:51:39 - 12:08:25 | 5036 |
| Carson City | 12:00:01 | -24.4 | Dark | Down | 18.9 | 229.8 | Really Low | 11:51:38 - 12:08:24 | 5020 |
| Yerington | 11:59:57 | -24.0 | Dark | Down | 18.7 | 230.4 | Really Low | 11:51:34 - 12:08:20 | 5013 |
| Gardnerville | 11:59:59 | -24.4 | Dark | Down | 19.1 | 229.9 | Really Low | 11:51:36 - 12:08:22 | 5008 |
| Hawthorne | 11:59:56 | -23.8 | Dark | Down | 18.7 | 230.9 | Really Low | 11:51:33 - 12:08:19 | 4993 |
| Lee Vining | 11:59:55 | -24.3 | Dark | Down | 19.3 | 230.7 | Really Low | 11:51:32 - 12:08:18 | 4964 |
| Bishop | 11:59:52 | -24.0 | Dark | Down | 19.3 | 231.4 | Really Low | 11:51:29 - 12:08:15 | 4937 |
| Beatty | 11:59:45 | -22.9 | Dark | Down | 18.5 | 232.7 | Really Low | 11:51:22 - 12:08:08 | 4918 |
| Patrick | 11:59:31 | -21.1 | Dark | Down | 17.6 | 235.3 | Really Low | 11:51:08 - 12:07:54 | 4845 |
| Laughlin/Bullhead City | 11:59:33 | -21.8 | Dark | Down | 18.2 | 234.8 | Really Low | 11:51:10 - 12:07:56 | 4831 |
| Lake Havasu City | 11:59:29 | -21.8 | Dark | Down | 18.4 | 235.2 | Really Low | 11:51:06 - 12:07:52 | 4795 |
| Wildwood | 11:59:41 | -25.2 | Dark | Down | 21.4 | 232.1 | Low | 11:51:18 - 12:08:04 | 4763 |
| George/Scottsdale | 11:59:20 | -20.0 | Dark | Down | 17.2 | 237.1 | Really Low | 11:50:57 - 12:07:43 | 4752 |
| Idyllwild | 11:59:33 | -23.9 | Dark | Down | 20.4 | 233.6 | Low | 11:51:10 - 12:07:56 | 4750 |
| Calipatria | 11:59:28 | -23.1 | Dark | Down | 20.0 | 234.7 | Low | 11:51:05 - 12:07:51 | 4716 |
| Yuma | 11:59:24 | -22.5 | Dark | Down | 19.6 | 235.4 | Really Low | 11:51:01 - 12:07:47 | 4693 |
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 523771, (2026/03/19 12:04UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 13.05 161 4Gam Crv 12:15:48.1 -17:32:30 2.6 4.93 166 8Eta Crv 12:32:03.6 -16:11:47 3.9 0.89 167 PPM 226102 12:36:50.7 -15:34:20 7.7 0.53 167 PPM 226056 12:34:55.5 -15:25:56 9.7 0.14 167 523771 12:34:37.5 -15:33:00 15.1 167 Positions are for J2000
Event circumstances last updated at 2024/06/18 21:25:52 UT
Marc W. Buie, Southwest Research Institute