Event between (470596) 08NW4 and star GA0960:17169173 with event index number of 1413434
Geocentric closest approach at 2025/07/12 07:32:48 UTC
J2000 position of star is 22:04:05.6 +07:48:32
Equinox of date position of star is 22:05:08.8 +07:54:44
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 35 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=21.5
[RECON map]
TNO is 36.6 AU from the Sun
and 36.0 AU from the Earth.
The TNO is moving 17.1
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is
2279 km.
The sky-plane scale is
26087.9 km/arcsec.
The TNO has an absolute magnitude Hv=5.8
Diameter=424.6 km assuming a 5% albedo -- 24.8 sec chord
Diameter=173.4 km assuming a 30% albedo -- 10.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 470596, (2025/07/12 07:33UT) Object RA Dec mag sep mel Markab 23:06:02.1 +15:20:35 2.5 16.59 50 18 Peg 22:01:24.4 +06:50:27 5.8 1.47 34 PPM 172579 22:03:55.0 +08:38:18 8.4 0.79 36 PPM 172590 22:04:25.9 +08:08:03 8.8 0.31 35 PPM 172618 22:05:47.4 +07:52:58 11.2 0.12 35 470596 22:05:21.8 +07:56:01 15.4 36 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 22.4 km
RECON observability=1.0 and success probability=9.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Clarence Fulton | 07:36:08 | -17.6 | AT | Up | 33.1 | 122.0 | Up | 07:21:38 - 07:50:38 | 4937 |
| Kelowna | 07:36:09 | -18.0 | AT | Up | 33.2 | 121.6 | Up | 07:21:39 - 07:50:39 | 4904 |
| Peachland | 07:36:10 | -18.1 | Dark | Up | 33.1 | 121.3 | Up | 07:21:40 - 07:50:40 | 4895 |
| Summerland | 07:36:11 | -18.2 | Dark | Up | 33.2 | 121.3 | Up | 07:21:41 - 07:50:41 | 4882 |
| Penticton | 07:36:10 | -18.3 | Dark | Up | 33.3 | 121.3 | Up | 07:21:40 - 07:50:40 | 4876 |
| Oliver | 07:36:11 | -18.6 | Dark | Up | 33.5 | 121.1 | Up | 07:21:41 - 07:50:41 | 4846 |
| Anarchist Mountain Observatory | 07:36:12 | -18.8 | Dark | Up | 33.7 | 121.2 | Up | 07:21:42 - 07:50:42 | 4831 |
| Tonasket | 07:36:13 | -19.1 | Dark | Up | 33.8 | 121.0 | Up | 07:21:43 - 07:50:43 | 4804 |
| Victoria | 07:36:25 | -18.9 | Dark | Up | 31.6 | 117.1 | Up | 07:21:55 - 07:50:55 | 4797 |
| Okanogan | 07:36:14 | -19.4 | Dark | Up | 33.9 | 120.7 | Up | 07:21:44 - 07:50:44 | 4775 |
| Brewster | 07:36:16 | -19.7 | Dark | Up | 33.9 | 120.3 | Up | 07:21:46 - 07:50:46 | 4752 |
| Manson/Chelan | 07:36:17 | -19.9 | Dark | Up | 33.8 | 119.8 | Up | 07:21:47 - 07:50:47 | 4734 |
| Wenatchee | 07:36:19 | -20.3 | Dark | Up | 34.0 | 119.4 | Up | 07:21:49 - 07:50:49 | 4693 |
| Ellensburg | 07:36:21 | -20.7 | Dark | Up | 34.1 | 119.0 | Up | 07:21:51 - 07:50:51 | 4657 |
| Yakima | 07:36:22 | -21.1 | Dark | Up | 34.2 | 118.7 | Up | 07:21:52 - 07:50:52 | 4621 |
| Toppenish/White Swan | 07:36:23 | -21.4 | Dark | Up | 34.5 | 118.7 | Up | 07:21:53 - 07:50:53 | 4601 |
| Pasco | 07:36:19 | -21.6 | Dark | Up | 35.3 | 119.9 | Up | 07:21:49 - 07:50:49 | 4587 |
| PNWRO | 07:36:19 | -21.8 | Dark | Up | 35.5 | 119.9 | Up | 07:21:49 - 07:50:49 | 4565 |
| Goldendale | 07:36:26 | -21.9 | Dark | Up | 34.5 | 118.0 | Up | 07:21:56 - 07:50:56 | 4552 |
| The Dalles | 07:36:27 | -22.0 | Dark | Up | 34.3 | 117.5 | Up | 07:21:57 - 07:50:57 | 4533 |
| Maupin | 07:36:28 | -22.5 | Dark | Up | 34.6 | 117.4 | Up | 07:21:58 - 07:50:58 | 4495 |
| Sisters | 07:36:32 | -23.3 | Dark | Up | 34.7 | 116.4 | Up | 07:22:02 - 07:51:02 | 4416 |
| Redmond | 07:36:30 | -23.4 | Dark | Up | 35.0 | 116.8 | Up | 07:22:00 - 07:51:00 | 4413 |
| Bend | 07:36:32 | -23.6 | Dark | Up | 35.0 | 116.5 | Up | 07:22:02 - 07:51:02 | 4393 |
| Oregon Observatory | 07:36:33 | -23.7 | Dark | Up | 35.0 | 116.3 | Up | 07:22:03 - 07:51:03 | 4378 |
| La Pine/Gilchrist | 07:36:33 | -23.9 | Dark | Up | 35.0 | 116.1 | Up | 07:22:03 - 07:51:03 | 4359 |
| North Lake | 07:36:33 | -24.4 | Dark | Up | 35.6 | 116.4 | Up | 07:22:03 - 07:51:03 | 4317 |
| Paisley | 07:36:33 | -25.0 | Dark | Up | 36.1 | 116.3 | Up | 07:22:03 - 07:51:03 | 4265 |
| Chiloquin | 07:36:37 | -25.0 | Dark | Up | 35.3 | 115.1 | Up | 07:22:07 - 07:51:07 | 4257 |
| Klamath Falls | 07:36:39 | -25.3 | Dark | Up | 35.5 | 114.9 | Up | 07:22:09 - 07:51:09 | 4224 |
| Lakeview | 07:36:33 | -25.5 | Dark | Up | 36.4 | 116.2 | Up | 07:22:03 - 07:51:03 | 4217 |
| Cedarville | 07:36:35 | -26.2 | Dark | Up | 36.9 | 115.9 | Up | 07:22:05 - 07:51:05 | 4155 |
| Fall River/Burney | 07:36:40 | -26.5 | Dark | Up | 36.2 | 114.5 | Up | 07:22:10 - 07:51:10 | 4112 |
| Susanville | 07:36:39 | -27.2 | Dark | Up | 37.0 | 114.7 | Up | 07:22:09 - 07:51:09 | 4050 |
| Dunrhomin | 07:35:41 | -27.5 | Dark | Up | 46.9 | 130.1 | Up | 07:21:11 - 07:50:11 | 4028 |
| Greenville | 07:36:40 | -27.5 | Dark | Up | 36.9 | 114.3 | Up | 07:22:10 - 07:51:10 | 4024 |
| Gimple | 07:36:41 | -27.5 | Dark | Up | 37.0 | 114.4 | Up | 07:22:11 - 07:51:11 | 4024 |
| Quincy | 07:36:42 | -27.7 | Dark | Up | 37.0 | 114.2 | Up | 07:22:12 - 07:51:12 | 4005 |
| Portola | 07:36:39 | -27.9 | Dark | Up | 37.4 | 114.5 | Up | 07:22:09 - 07:51:09 | 3992 |
| Reno | 07:36:38 | -28.2 | Dark | Up | 38.0 | 114.9 | Up | 07:22:08 - 07:51:08 | 3964 |
| Carson City | 07:36:39 | -28.5 | Dark | Up | 38.1 | 114.6 | Up | 07:22:09 - 07:51:09 | 3930 |
| Yerington | 07:36:37 | -28.8 | Dark | Up | 38.6 | 115.1 | Up | 07:22:07 - 07:51:07 | 3909 |
| Gardnerville | 07:36:40 | -28.8 | Dark | Up | 38.3 | 114.5 | Up | 07:22:10 - 07:51:10 | 3906 |
| Hawthorne | 07:36:36 | -29.3 | Dark | Up | 39.2 | 115.2 | Up | 07:22:06 - 07:51:06 | 3863 |
| Tonopah | 07:36:32 | -29.9 | Dark | Up | 40.4 | 116.1 | Up | 07:22:02 - 07:51:02 | 3815 |
| Lee Vining | 07:36:40 | -29.8 | Dark | Up | 39.1 | 114.3 | Up | 07:22:10 - 07:51:10 | 3809 |
| Bishop | 07:36:38 | -30.5 | Dark | Up | 39.9 | 114.5 | Up | 07:22:08 - 07:51:08 | 3749 |
| Beatty | 07:36:33 | -31.1 | Dark | Up | 41.2 | 115.6 | Up | 07:22:03 - 07:51:03 | 3700 |
| Indian Springs | 07:36:29 | -31.4 | Dark | Up | 42.2 | 116.3 | Up | 07:21:59 - 07:50:59 | 3666 |
| Henderson | 07:36:28 | -32.0 | Dark | Up | 42.9 | 116.5 | Up | 07:21:58 - 07:50:58 | 3612 |
| Patrick | 07:36:25 | -32.7 | Dark | Up | 44.0 | 117.0 | Up | 07:21:55 - 07:50:55 | 3549 |
| CPSLO | 07:36:50 | -32.3 | Dark | Up | 39.0 | 111.1 | Up | 07:22:20 - 07:51:20 | 3548 |
| Kingman/Dolan Springs | 07:36:26 | -32.9 | Dark | Up | 43.9 | 116.7 | Up | 07:21:56 - 07:50:56 | 3527 |
| Laughlin/Bullhead City | 07:36:29 | -32.9 | Dark | Up | 43.6 | 116.2 | Up | 07:21:59 - 07:50:59 | 3525 |
| Mohave Valley | 07:36:28 | -33.2 | Dark | Up | 43.7 | 115.9 | Up | 07:21:58 - 07:50:58 | 3497 |
| Lake Havasu City | 07:36:28 | -33.6 | Dark | Up | 44.1 | 115.8 | Up | 07:21:58 - 07:50:58 | 3456 |
| Wildwood | 07:36:46 | -33.7 | Dark | Up | 41.0 | 111.8 | Up | 07:22:16 - 07:51:16 | 3422 |
| Parker | 07:36:28 | -33.9 | Dark | Up | 44.2 | 115.5 | Up | 07:21:58 - 07:50:58 | 3421 |
| Idyllwild | 07:36:39 | -34.2 | Dark | Up | 42.6 | 113.1 | Up | 07:22:09 - 07:51:09 | 3383 |
| George/Scottsdale | 07:36:19 | -34.4 | Dark | Up | 46.2 | 117.4 | Up | 07:21:49 - 07:50:49 | 3377 |
| Blythe | 07:36:31 | -34.4 | Dark | Up | 44.2 | 114.8 | Up | 07:22:01 - 07:51:01 | 3368 |
| Calipatria | 07:36:36 | -34.9 | Dark | Up | 43.7 | 113.6 | Up | 07:22:06 - 07:51:06 | 3319 |
| Yuma | 07:36:33 | -35.4 | Dark | Up | 44.6 | 114.0 | Up | 07:22:03 - 07:51:03 | 3274 |
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 470596, (2025/07/12 07:33UT) Object RA Dec mag sep mel Markab 23:04:45.8 +15:12:18 2.5 16.59 50 18 Peg 22:00:07.9 +06:43:03 5.8 1.47 34 PPM 172579 22:02:39.0 +08:30:51 8.4 0.79 36 PPM 172590 22:03:09.8 +08:00:35 8.8 0.31 35 PPM 172618 22:04:31.2 +07:45:30 11.2 0.12 35 470596 22:04:05.6 +07:48:32 15.4 35 Positions are for J2000
Event circumstances last updated at 2021/03/09 02:05:41 UT
Marc W. Buie, Southwest Research Institute