Event between (576162) 12GT41 and star GA0820:16873924 with event index number of 2522598
Geocentric closest approach at 2025/10/08 02:25:10 UTC
J2000 position of star is 18:58:39.8 -06:08:23
Equinox of date position of star is 18:59:53.2 -06:06:26
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 102 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=22.3
[RECON map]
TNO is 17.7 AU from the Sun
and 17.7 AU from the Earth.
The TNO is moving 14.0
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 104 seconds.
The 1-sigma cross-track error in the shadow position is
1895 km.
The sky-plane scale is
12833.2 km/arcsec.
The TNO has an absolute magnitude Hv=9.5
Diameter=73.8 km assuming a 5% albedo -- 5.3 sec chord
Diameter=30.1 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
Star training set for 576162, (2025/10/08 02:23UT) Object RA Dec mag sep mel Antares 16:30:59.5 -26:29:13 0.9 40.91 139 Nunki 18:56:51.7 -26:15:44 2.0 20.17 106 Eta Sct 18:58:26.4 -05:48:39 4.8 0.49 102 PPM 202437 19:02:50.1 -06:09:15 7.9 0.70 101 PPM 202369 18:59:41.0 -05:57:36 9.4 0.17 102 576162 19:00:02.6 -06:06:10 16.5 101 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 71.9 km
RECON observability=0.2 and success probability=1.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 02:21:10 | -18.4 | Dark | Up | 28.9 | 204.8 | Low | 02:11:58 - 02:30:21 | 6575 |
| Dunrhomin | 02:22:11 | -21.7 | Dark | Up | 39.1 | 209.6 | Up | 02:13:00 - 02:31:23 | 6396 |
| CU-SBO | 02:22:13 | -21.7 | Dark | Up | 39.4 | 209.6 | Up | 02:13:01 - 02:31:24 | 6383 |
| Kelowna | 02:20:36 | -10.2 | NT | Up | 33.6 | 189.6 | Up | 02:11:25 - 02:29:48 | 5821 |
| Penticton | 02:20:35 | -10.2 | NT | Up | 33.9 | 189.5 | Up | 02:11:24 - 02:29:47 | 5807 |
| Summerland | 02:20:36 | -10.1 | NT | Up | 33.8 | 189.3 | Up | 02:11:24 - 02:29:47 | 5802 |
| Anarchist Mountain Observatory | 02:20:39 | -10.3 | NT | Up | 34.4 | 189.8 | Up | 02:11:28 - 02:29:51 | 5802 |
| Peachland | 02:20:35 | -10.0 | NT | Up | 33.7 | 189.2 | Up | 02:11:24 - 02:29:47 | 5802 |
| Kamloops | 02:20:29 | -9.6 | NT | Up | 32.9 | 188.4 | Up | 02:11:18 - 02:29:41 | 5796 |
| Oliver | 02:20:37 | -10.2 | NT | Up | 34.2 | 189.5 | Up | 02:11:26 - 02:29:49 | 5796 |
| Tonasket | 02:20:39 | -10.3 | NT | Up | 34.7 | 189.7 | Up | 02:11:28 - 02:29:51 | 5788 |
| Okanogan | 02:20:40 | -10.2 | NT | Up | 35.1 | 189.6 | Up | 02:11:28 - 02:29:51 | 5769 |
| George/Scottsdale | 02:22:22 | -17.3 | AT | Up | 47.3 | 203.9 | Up | 02:13:10 - 02:31:33 | 5750 |
| Brewster | 02:20:41 | -10.1 | NT | Up | 35.3 | 189.4 | Up | 02:11:29 - 02:29:52 | 5749 |
| PNWRO | 02:20:52 | -10.8 | NT | Up | 37.3 | 190.8 | Up | 02:11:40 - 02:30:03 | 5734 |
| Manson/Chelan | 02:20:41 | -9.8 | NT | Up | 35.6 | 189.0 | Up | 02:11:29 - 02:29:52 | 5721 |
| Wenatchee | 02:20:41 | -9.7 | NT | Up | 36.1 | 188.8 | Up | 02:11:29 - 02:29:52 | 5696 |
| Patrick | 02:22:04 | -15.5 | AT | Up | 46.4 | 200.4 | Up | 02:12:53 - 02:31:16 | 5678 |
| Ellensburg | 02:20:43 | -9.6 | NT | Up | 36.5 | 188.6 | Up | 02:11:32 - 02:29:55 | 5669 |
| Toppenish/White Swan | 02:20:45 | -9.7 | NT | Up | 37.1 | 188.9 | Up | 02:11:33 - 02:29:56 | 5657 |
| Kingman/Dolan Springs | 02:22:04 | -15.3 | AT | Up | 46.7 | 200.2 | Up | 02:12:53 - 02:31:16 | 5656 |
| Yakima | 02:20:45 | -9.6 | NT | Up | 36.9 | 188.6 | Up | 02:11:34 - 02:29:57 | 5654 |
| Henderson | 02:21:56 | -14.5 | AT | Up | 46.1 | 198.6 | Up | 02:12:44 - 02:31:07 | 5626 |
| Laughlin/Bullhead City | 02:22:02 | -14.9 | AT | Up | 46.8 | 199.5 | Up | 02:12:51 - 02:31:14 | 5619 |
| Goldendale | 02:20:48 | -9.5 | NT | Up | 37.7 | 188.4 | Up | 02:11:36 - 02:29:59 | 5612 |
| Lake Havasu City | 02:22:07 | -15.1 | AT | Up | 47.4 | 200.1 | Up | 02:12:55 - 02:31:18 | 5610 |
| Mohave Valley | 02:22:04 | -14.9 | AT | Up | 47.1 | 199.6 | Up | 02:12:53 - 02:31:16 | 5609 |
| Indian Springs | 02:21:50 | -13.9 | AT | Up | 45.8 | 197.4 | Up | 02:12:39 - 02:31:02 | 5600 |
| Parker | 02:22:09 | -15.2 | AT | Up | 47.7 | 200.3 | Up | 02:12:58 - 02:31:21 | 5598 |
| The Dalles | 02:20:46 | -9.2 | NT | Up | 38.0 | 188.0 | Up | 02:11:35 - 02:29:58 | 5582 |
| Maupin | 02:20:50 | -9.3 | NT | Up | 38.4 | 188.2 | Up | 02:11:38 - 02:30:01 | 5573 |
| Tonopah | 02:21:37 | -12.5 | AT | Up | 44.7 | 194.8 | Up | 02:12:25 - 02:30:48 | 5555 |
| Victoria | 02:20:27 | -7.6 | NT | Up | 35.2 | 184.9 | Up | 02:11:15 - 02:29:38 | 5554 |
| Beatty | 02:21:44 | -13.0 | AT | Up | 45.7 | 195.8 | Up | 02:12:33 - 02:30:56 | 5539 |
| Bend | 02:20:52 | -9.2 | NT | Up | 39.5 | 188.0 | Up | 02:11:40 - 02:30:03 | 5518 |
| North Lake | 02:20:57 | -9.5 | NT | Up | 40.2 | 188.7 | Up | 02:11:45 - 02:30:08 | 5513 |
| Yuma | 02:22:15 | -15.0 | AT | Up | 49.2 | 200.4 | Up | 02:13:04 - 02:31:27 | 5513 |
| Sisters | 02:20:51 | -9.0 | NT | Up | 39.3 | 187.6 | Up | 02:11:40 - 02:30:03 | 5511 |
| Lakeview | 02:21:04 | -9.9 | NT | Up | 41.2 | 189.6 | Up | 02:11:53 - 02:30:16 | 5508 |
| Oregon Observatory | 02:20:53 | -9.1 | NT | Up | 39.7 | 187.9 | Up | 02:11:41 - 02:30:04 | 5503 |
| Cedarville | 02:21:08 | -10.1 | NT | Up | 41.9 | 189.9 | Up | 02:11:56 - 02:30:19 | 5494 |
| Hawthorne | 02:21:28 | -11.4 | NT | Up | 44.6 | 192.7 | Up | 02:12:17 - 02:30:40 | 5478 |
| Calipatria | 02:22:10 | -14.2 | AT | Up | 49.0 | 198.9 | Up | 02:12:58 - 02:31:21 | 5468 |
| Yerington | 02:21:24 | -10.9 | NT | Up | 44.2 | 191.8 | Up | 02:12:12 - 02:30:35 | 5461 |
| Bishop | 02:21:35 | -11.6 | NT | Up | 45.6 | 193.3 | Up | 02:12:24 - 02:30:47 | 5446 |
| Reno | 02:21:19 | -10.4 | NT | Up | 43.7 | 190.8 | Up | 02:12:07 - 02:30:30 | 5439 |
| Carson City | 02:21:21 | -10.4 | NT | Up | 44.1 | 190.9 | Up | 02:12:09 - 02:30:32 | 5426 |
| Chiloquin | 02:20:58 | -8.8 | NT | Up | 41.0 | 187.5 | Up | 02:11:46 - 02:30:09 | 5426 |
| Lee Vining | 02:21:29 | -11.0 | NT | Up | 45.2 | 192.1 | Up | 02:12:18 - 02:30:41 | 5422 |
| Gardnerville | 02:21:22 | -10.5 | NT | Up | 44.3 | 191.0 | Up | 02:12:11 - 02:30:34 | 5419 |
| Susanville | 02:21:11 | -9.7 | NT | Up | 43.0 | 189.5 | Up | 02:11:59 - 02:30:22 | 5419 |
| Klamath Falls | 02:21:01 | -8.9 | NT | Up | 41.3 | 187.7 | Up | 02:11:50 - 02:30:13 | 5418 |
| Idyllwild | 02:22:01 | -13.2 | AT | Up | 48.8 | 196.9 | Up | 02:12:50 - 02:31:13 | 5411 |
| Portola | 02:21:15 | -9.9 | NT | Up | 43.6 | 189.8 | Up | 02:12:04 - 02:30:27 | 5407 |
| Fall River/Burney | 02:21:05 | -9.1 | NT | Up | 42.5 | 188.4 | Up | 02:11:54 - 02:30:17 | 5395 |
| Gimple | 02:21:12 | -9.6 | NT | Up | 43.3 | 189.2 | Up | 02:12:01 - 02:30:24 | 5393 |
| Greenville | 02:21:12 | -9.5 | NT | Up | 43.3 | 189.1 | Up | 02:12:00 - 02:30:23 | 5388 |
| Quincy | 02:21:13 | -9.5 | NT | Up | 43.5 | 189.2 | Up | 02:12:01 - 02:30:24 | 5380 |
| Wildwood | 02:21:52 | -11.6 | NT | Up | 48.8 | 193.9 | Up | 02:12:40 - 02:31:03 | 5292 |
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, (2025/10/08 02:23UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 40.91 139 Nunki 18:55:15.9 -26:17:49 2.0 20.17 106 Eta Sct 18:57:03.8 -05:50:48 4.8 0.49 102 PPM 202437 19:01:27.3 -06:11:34 7.9 0.70 101 PPM 202369 18:58:18.3 -05:59:48 9.4 0.17 102 576162 18:58:39.8 -06:08:23 16.5 101 Positions are for J2000
Event circumstances last updated at 2022/10/28 02:59:38 UT
Marc W. Buie, Southwest Research Institute