Event between (576162) 12GT41 and star GA0840:14916224 with event index number of 2522494
Geocentric closest approach at 2025/08/15 05:08:11 UTC
J2000 position of star is 19:00:21.9 -04:58:19
Equinox of date position of star is 19:01:34.7 -04:56:19
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon.
Moon is 62% illuminated.
TNO apparent brightness V=22.1
[RECON map]
TNO is 17.7 AU from the Sun
and 16.9 AU from the Earth.
The TNO is moving 18.3
km/sec on the sky relative to the star, or,
5.4 arcsec/hr.
The 1-sigma error in the time of the event is 102 seconds.
The 1-sigma cross-track error in the shadow position is
1454 km.
The sky-plane scale is
12250.1 km/arcsec.
The TNO has an absolute magnitude Hv=9.5
Diameter=73.8 km assuming a 5% albedo -- 4.1 sec chord
Diameter=30.1 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 576162, (2025/08/15 05:09UT) Object RA Dec mag sep mel Antares 16:30:59.0 -26:29:12 0.9 41.92 150 Tarazed 19:47:28.6 +10:40:39 2.7 19.32 95 12 Aql 19:03:02.9 -05:42:04 3.9 0.83 111 PPM 202378 19:00:14.6 -04:41:24 7.9 0.44 111 PPM 202438 19:02:50.5 -04:56:03 9.7 0.28 111 576162 19:01:43.6 -04:56:04 16.3 111 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 17.6 km
RECON observability=1.0 and success probability=4.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 05:06:04 | -14.4 | AT | Down | 36.0 | 170.0 | Up | 04:57:06 - 05:15:02 | 4690 |
| Kamloops | 05:05:49 | -14.4 | AT | Down | 34.2 | 173.8 | Up | 04:56:51 - 05:14:47 | 4671 |
| Peachland | 05:05:49 | -15.3 | AT | Down | 35.1 | 174.5 | Up | 04:56:51 - 05:14:47 | 4603 |
| Kelowna | 05:05:48 | -15.3 | AT | Down | 35.0 | 174.8 | Up | 04:56:50 - 05:14:46 | 4596 |
| Summerland | 05:05:50 | -15.4 | AT | Down | 35.3 | 174.6 | Up | 04:56:52 - 05:14:48 | 4592 |
| Penticton | 05:05:49 | -15.5 | AT | Down | 35.4 | 174.7 | Up | 04:56:51 - 05:14:47 | 4584 |
| Oliver | 05:05:50 | -15.8 | AT | Down | 35.7 | 174.7 | Up | 04:56:52 - 05:14:48 | 4567 |
| Anarchist Mountain Observatory | 05:05:49 | -16.0 | AT | Down | 35.9 | 174.9 | Up | 04:56:51 - 05:14:47 | 4550 |
| Tonasket | 05:05:50 | -16.2 | AT | Down | 36.2 | 174.8 | Up | 04:56:52 - 05:14:48 | 4537 |
| Okanogan | 05:05:52 | -16.3 | AT | Down | 36.5 | 174.6 | Up | 04:56:54 - 05:14:50 | 4526 |
| Manson/Chelan | 05:05:55 | -16.4 | AT | Down | 37.0 | 173.9 | Up | 04:56:57 - 05:14:53 | 4525 |
| Brewster | 05:05:52 | -16.4 | AT | Down | 36.8 | 174.3 | Up | 04:56:54 - 05:14:50 | 4521 |
| Wenatchee | 05:05:55 | -16.7 | AT | Down | 37.4 | 173.6 | Up | 04:56:57 - 05:14:53 | 4508 |
| Ellensburg | 05:05:58 | -16.9 | AT | Down | 37.8 | 173.3 | Up | 04:57:00 - 05:14:56 | 4495 |
| Yakima | 05:05:59 | -17.1 | AT | Down | 38.2 | 173.3 | Up | 04:57:01 - 05:14:57 | 4475 |
| Toppenish/White Swan | 05:05:59 | -17.4 | AT | Down | 38.5 | 173.5 | Up | 04:57:01 - 05:14:57 | 4456 |
| The Dalles | 05:06:04 | -17.5 | AT | Down | 39.2 | 172.4 | Up | 04:57:06 - 05:15:02 | 4448 |
| Goldendale | 05:06:02 | -17.5 | AT | Down | 39.0 | 172.9 | Up | 04:57:04 - 05:15:00 | 4445 |
| Maupin | 05:06:05 | -17.9 | AT | Down | 39.6 | 172.5 | Up | 04:57:07 - 05:15:03 | 4421 |
| Sisters | 05:06:08 | -18.2 | Dark | Down | 40.4 | 171.8 | Up | 04:57:10 - 05:15:06 | 4395 |
| PNWRO | 05:05:55 | -18.4 | Dark | Down | 38.9 | 175.3 | Up | 04:56:57 - 05:14:53 | 4372 |
| Bend | 05:06:08 | -18.5 | Dark | Down | 40.7 | 172.1 | Up | 04:57:10 - 05:15:06 | 4370 |
| Oregon Observatory | 05:06:08 | -18.6 | Dark | Down | 40.8 | 171.9 | Up | 04:57:10 - 05:15:06 | 4367 |
| Chiloquin | 05:06:14 | -19.2 | Dark | Down | 42.1 | 171.2 | Up | 04:57:16 - 05:15:12 | 4311 |
| North Lake | 05:06:09 | -19.3 | Dark | Down | 41.5 | 172.6 | Up | 04:57:11 - 05:15:07 | 4306 |
| Klamath Falls | 05:06:15 | -19.5 | Dark | Down | 42.4 | 171.3 | Up | 04:57:17 - 05:15:13 | 4287 |
| Lakeview | 05:06:09 | -20.3 | Dark | Down | 42.6 | 173.2 | Up | 04:57:11 - 05:15:07 | 4220 |
| Fall River/Burney | 05:06:16 | -20.5 | Dark | Down | 43.6 | 171.6 | Up | 04:57:18 - 05:15:14 | 4201 |
| Sleaford | 05:05:01 | -18.8 | Dark | Up | 32.4 | 190.8 | Up | 04:56:03 - 05:13:59 | 4181 |
| Cedarville | 05:06:11 | -20.8 | Dark | Down | 43.3 | 173.3 | Up | 04:57:13 - 05:15:09 | 4173 |
| Susanville | 05:06:16 | -21.3 | Dark | Down | 44.4 | 172.6 | Up | 04:57:18 - 05:15:14 | 4128 |
| Greenville | 05:06:18 | -21.4 | Dark | Down | 44.6 | 172.1 | Up | 04:57:20 - 05:15:16 | 4126 |
| Gimple | 05:06:17 | -21.4 | Dark | Down | 44.6 | 172.3 | Up | 04:57:19 - 05:15:15 | 4121 |
| Quincy | 05:06:18 | -21.5 | Dark | Down | 44.8 | 172.1 | Up | 04:57:20 - 05:15:16 | 4113 |
| Portola | 05:06:16 | -21.9 | Dark | Down | 45.0 | 172.8 | Up | 04:57:18 - 05:15:14 | 4083 |
| Reno | 05:06:15 | -22.4 | Dark | Down | 45.3 | 173.6 | Up | 04:57:17 - 05:15:13 | 4036 |
| Carson City | 05:06:16 | -22.7 | Dark | Down | 45.7 | 173.6 | Up | 04:57:18 - 05:15:14 | 4012 |
| Gardnerville | 05:06:16 | -22.9 | Dark | Down | 45.9 | 173.7 | Up | 04:57:18 - 05:15:14 | 3994 |
| Yerington | 05:06:14 | -23.2 | Dark | Down | 45.9 | 174.5 | Up | 04:57:16 - 05:15:12 | 3969 |
| Hawthorne | 05:06:13 | -23.8 | Dark | Down | 46.4 | 175.2 | Up | 04:57:15 - 05:15:11 | 3914 |
| Lee Vining | 05:06:16 | -23.9 | Dark | Down | 46.9 | 174.5 | Up | 04:57:18 - 05:15:14 | 3902 |
| Bishop | 05:06:15 | -24.7 | Dark | Down | 47.6 | 175.5 | Up | 04:57:17 - 05:15:13 | 3827 |
| Tonopah | 05:06:08 | -24.9 | Dark | Down | 46.9 | 177.2 | Up | 04:57:10 - 05:15:06 | 3815 |
| Beatty | 05:06:09 | -26.0 | Dark | Down | 48.1 | 177.8 | Up | 04:57:11 - 05:15:07 | 3715 |
| Indian Springs | 05:06:06 | -26.8 | Dark | Down | 48.5 | 179.4 | Up | 04:57:08 - 05:15:04 | 3639 |
| Wildwood | 05:06:25 | -26.8 | Dark | Down | 50.8 | 174.9 | Up | 04:57:27 - 05:15:23 | 3616 |
| Henderson | 05:06:05 | -27.6 | Dark | Down | 49.0 | 180.5 | Up | 04:57:07 - 05:15:03 | 3567 |
| Idyllwild | 05:06:18 | -28.2 | Dark | Down | 51.3 | 177.8 | Up | 04:57:20 - 05:15:16 | 3494 |
| Laughlin/Bullhead City | 05:06:05 | -28.4 | Dark | Down | 49.9 | 181.1 | Up | 04:57:07 - 05:15:03 | 3485 |
| Patrick | 05:06:02 | -28.6 | Dark | Down | 49.6 | 182.2 | Up | 04:57:04 - 05:15:00 | 3467 |
| Mohave Valley | 05:06:06 | -28.6 | Dark | Down | 50.1 | 181.1 | Up | 04:57:08 - 05:15:04 | 3465 |
| Kingman/Dolan Springs | 05:06:03 | -28.7 | Dark | Down | 49.8 | 181.9 | Up | 04:57:05 - 05:15:01 | 3461 |
| Lake Havasu City | 05:06:06 | -29.1 | Dark | Down | 50.5 | 181.5 | Up | 04:57:08 - 05:15:04 | 3424 |
| Parker | 05:06:07 | -29.3 | Dark | Down | 50.9 | 181.6 | Up | 04:57:09 - 05:15:05 | 3397 |
| Calipatria | 05:06:14 | -29.3 | Dark | Down | 51.9 | 179.7 | Up | 04:57:16 - 05:15:12 | 3388 |
| Dunrhomin | 05:05:18 | -29.1 | Dark | Up | 43.9 | 193.8 | Up | 04:56:20 - 05:14:16 | 3380 |
| CU-SBO | 05:05:19 | -29.2 | Dark | Up | 44.1 | 193.7 | Up | 04:56:21 - 05:14:17 | 3367 |
| Yuma | 05:06:12 | -30.2 | Dark | Down | 52.3 | 181.1 | Up | 04:57:14 - 05:15:10 | 3310 |
| George/Scottsdale | 05:05:58 | -31.0 | Dark | Down | 51.2 | 185.4 | Up | 04:57:00 - 05:14:56 | 3240 |
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 576162, (2025/08/15 05:09UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 41.92 150 Tarazed 19:46:15.6 +10:36:48 2.7 19.32 95 12 Aql 19:01:40.8 -05:44:22 3.9 0.83 111 PPM 202378 18:58:53.1 -04:43:36 7.9 0.44 111 PPM 202438 19:01:28.9 -04:58:21 9.7 0.28 111 576162 19:00:21.9 -04:58:19 16.3 111 Positions are for J2000
Event circumstances last updated at 2022/10/27 03:20:27 UT
Marc W. Buie, Southwest Research Institute