Event between 04TF282 and star GA1000:00994631 with event index number of 1551266
Geocentric closest approach at 2026/10/17 09:14:05 UTC
J2000 position of star is 05:45:38.0 +11:06:12
Equinox of date position of star is 05:46:51.6 +11:06:39
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 159 degrees from the moon.
Moon is 38% illuminated.
TNO apparent brightness V=22.7
[RECON map]
TNO is 43.0 AU from the Sun
and 42.6 AU from the Earth.
The TNO is moving 11.7
km/sec on the sky relative to the star, or,
1.4 arcsec/hr.
The 1-sigma error in the time of the event is 810 seconds.
The 1-sigma cross-track error in the shadow position is
4598 km.
The sky-plane scale is
30863.3 km/arcsec.
The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 29.5 sec chord
Diameter=141.6 km assuming a 30% albedo -- 12.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 04TF282, (2026/10/17 09:14UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.4 +07:24:35 0.4 4.38 157 Bellatrix 05:26:34.2 +06:22:18 1.6 6.95 152 PPM 149523 05:51:31.3 +09:52:37 6.4 1.64 159 PPM 121369 05:47:29.3 +10:48:26 8.5 0.32 159 PPM 121349 05:46:28.5 +11:02:53 9.6 0.17 159 04TF282 05:47:07.4 +11:06:44 15.2 159 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
1.1 sigma about the mid-time.
The median site spacing is 12.2 km
RECON observability=1.0 and success probability=6.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 09:13:37 | -47.8 | Dark | Down | 36.8 | 119.0 | Up | 08:58:37 - 09:28:37 | -3459 |
| Kamloops | 09:13:11 | -45.0 | Dark | Down | 37.4 | 123.3 | Up | 08:58:11 - 09:28:11 | -3527 |
| Peachland | 09:13:15 | -45.6 | Dark | Down | 38.2 | 123.4 | Up | 08:58:15 - 09:28:15 | -3576 |
| Summerland | 09:13:16 | -45.6 | Dark | Down | 38.3 | 123.4 | Up | 08:58:16 - 09:28:16 | -3584 |
| Kelowna | 09:13:12 | -45.4 | Dark | Down | 38.3 | 123.8 | Up | 08:58:12 - 09:28:12 | -3585 |
| Penticton | 09:13:16 | -45.7 | Dark | Down | 38.4 | 123.5 | Up | 08:58:16 - 09:28:16 | -3591 |
| Oliver | 09:13:20 | -46.0 | Dark | Down | 38.6 | 123.2 | Up | 08:58:20 - 09:28:20 | -3600 |
| Manson/Chelan | 09:13:32 | -47.2 | Dark | Down | 39.0 | 121.8 | Up | 08:58:32 - 09:28:32 | -3613 |
| Anarchist Mountain Observatory | 09:13:21 | -46.0 | Dark | Down | 38.8 | 123.3 | Up | 08:58:21 - 09:28:21 | -3613 |
| Tonasket | 09:13:23 | -46.3 | Dark | Down | 39.0 | 123.1 | Up | 08:58:23 - 09:28:23 | -3619 |
| Wenatchee | 09:13:37 | -47.7 | Dark | Down | 39.2 | 121.3 | Up | 08:58:37 - 09:28:37 | -3620 |
| Brewster | 09:13:28 | -46.9 | Dark | Down | 39.1 | 122.3 | Up | 08:58:28 - 09:28:28 | -3622 |
| Okanogan | 09:13:26 | -46.6 | Dark | Down | 39.1 | 122.7 | Up | 08:58:26 - 09:28:26 | -3623 |
| Ellensburg | 09:13:41 | -48.1 | Dark | Down | 39.3 | 120.8 | Up | 08:58:41 - 09:28:41 | -3623 |
| Yakima | 09:13:42 | -48.5 | Dark | Down | 39.5 | 120.5 | Up | 08:58:42 - 09:28:42 | -3635 |
| The Dalles | 09:13:53 | -49.5 | Dark | Down | 39.6 | 119.2 | Up | 08:58:53 - 09:28:53 | -3640 |
| Goldendale | 09:13:50 | -49.2 | Dark | Down | 39.7 | 119.7 | Up | 08:58:50 - 09:28:50 | -3648 |
| Toppenish/White Swan | 09:13:44 | -48.6 | Dark | Down | 39.7 | 120.5 | Up | 08:58:44 - 09:28:44 | -3649 |
| Maupin | 09:13:54 | -49.8 | Dark | Down | 39.9 | 119.0 | Up | 08:58:54 - 09:28:54 | -3659 |
| Sisters | 09:14:05 | -50.7 | Dark | Down | 40.0 | 117.9 | Up | 08:59:05 - 09:29:05 | -3665 |
| Oregon Observatory | 09:14:08 | -51.0 | Dark | Down | 40.3 | 117.8 | Up | 08:59:08 - 09:29:08 | -3685 |
| Bend | 09:14:08 | -50.8 | Dark | Down | 40.3 | 118.0 | Up | 08:59:08 - 09:29:08 | -3685 |
| Chiloquin | 09:14:20 | -52.3 | Dark | Down | 40.7 | 116.4 | Up | 08:59:20 - 09:29:20 | -3714 |
| PNWRO | 09:13:42 | -48.3 | Dark | Down | 40.8 | 121.8 | Up | 08:58:42 - 09:28:42 | -3728 |
| Klamath Falls | 09:14:22 | -52.5 | Dark | Down | 40.9 | 116.2 | Up | 08:59:22 - 09:29:22 | -3730 |
| North Lake | 09:14:12 | -51.3 | Dark | Down | 41.0 | 117.8 | Up | 08:59:12 - 09:29:12 | -3733 |
| Fall River/Burney | 09:14:31 | -53.3 | Dark | Down | 41.7 | 115.7 | Up | 08:59:31 - 09:29:31 | -3794 |
| Lakeview | 09:14:18 | -51.9 | Dark | Down | 41.8 | 117.6 | Up | 08:59:18 - 09:29:18 | -3798 |
| Cedarville | 09:14:23 | -52.4 | Dark | Down | 42.3 | 117.2 | Up | 08:59:23 - 09:29:23 | -3832 |
| Greenville | 09:14:40 | -53.8 | Dark | Down | 42.4 | 115.4 | Up | 08:59:40 - 09:29:40 | -3851 |
| Susanville | 09:14:33 | -53.5 | Dark | Down | 42.5 | 115.9 | Up | 08:59:33 - 09:29:33 | -3854 |
| Gimple | 09:14:36 | -53.8 | Dark | Down | 42.5 | 115.5 | Up | 08:59:36 - 09:29:36 | -3856 |
| Quincy | 09:14:38 | -54.0 | Dark | Down | 42.5 | 115.3 | Up | 08:59:38 - 09:29:38 | -3860 |
| Portola | 09:14:38 | -53.8 | Dark | Down | 42.9 | 115.6 | Up | 08:59:38 - 09:29:38 | -3888 |
| Reno | 09:14:38 | -53.7 | Dark | Down | 43.5 | 116.0 | Up | 08:59:38 - 09:29:38 | -3931 |
| Carson City | 09:14:40 | -54.0 | Dark | Down | 43.6 | 115.7 | Up | 08:59:40 - 09:29:40 | -3947 |
| Gardnerville | 09:14:43 | -54.1 | Dark | Down | 43.8 | 115.6 | Up | 08:59:43 - 09:29:43 | -3961 |
| Yerington | 09:14:39 | -53.8 | Dark | Down | 44.2 | 116.2 | Up | 08:59:39 - 09:29:39 | -3987 |
| Hawthorne | 09:14:40 | -53.9 | Dark | Down | 44.7 | 116.3 | Up | 08:59:40 - 09:29:40 | -4035 |
| Lee Vining | 09:14:51 | -54.5 | Dark | Down | 44.7 | 115.3 | Up | 08:59:51 - 09:29:51 | -4035 |
| Sleaford | 09:12:11 | -38.3 | Dark | Down | 43.0 | 140.3 | Up | 08:57:11 - 09:27:11 | -4088 |
| Bishop | 09:14:51 | -54.6 | Dark | Down | 45.4 | 115.5 | Up | 08:59:51 - 09:29:51 | -4100 |
| Tonopah | 09:14:42 | -53.5 | Dark | Down | 45.9 | 117.2 | Up | 08:59:42 - 09:29:42 | -4128 |
| Beatty | 09:14:47 | -54.0 | Dark | Down | 46.8 | 116.6 | Up | 08:59:47 - 09:29:47 | -4207 |
| Wildwood | 09:15:16 | -56.9 | Dark | Down | 46.7 | 112.3 | Up | 09:00:16 - 09:30:16 | -4250 |
| Indian Springs | 09:14:45 | -53.6 | Dark | Down | 47.7 | 117.4 | Up | 08:59:45 - 09:29:45 | -4280 |
| Henderson | 09:14:46 | -53.5 | Dark | Down | 48.5 | 117.5 | Up | 08:59:46 - 09:29:46 | -4345 |
| Idyllwild | 09:15:12 | -56.0 | Dark | Down | 48.3 | 113.6 | Up | 09:00:12 - 09:30:12 | -4370 |
| Laughlin/Bullhead City | 09:14:51 | -53.8 | Dark | Down | 49.2 | 117.1 | Up | 08:59:51 - 09:29:51 | -4412 |
| Mohave Valley | 09:14:55 | -53.9 | Dark | Down | 49.3 | 116.8 | Up | 08:59:55 - 09:29:55 | -4426 |
| Patrick | 09:14:46 | -53.2 | Dark | Down | 49.6 | 118.0 | Up | 08:59:46 - 09:29:46 | -4437 |
| Kingman/Dolan Springs | 09:14:49 | -53.5 | Dark | Down | 49.5 | 117.6 | Up | 08:59:49 - 09:29:49 | -4438 |
| Lake Havasu City | 09:14:55 | -54.0 | Dark | Down | 49.7 | 116.7 | Up | 08:59:55 - 09:29:55 | -4461 |
| Calipatria | 09:15:11 | -55.6 | Dark | Down | 49.4 | 114.1 | Up | 09:00:11 - 09:30:11 | -4469 |
| Parker | 09:14:58 | -54.2 | Dark | Down | 49.9 | 116.3 | Up | 08:59:58 - 09:29:58 | -4482 |
| Yuma | 09:15:11 | -55.3 | Dark | Down | 50.3 | 114.5 | Up | 09:00:11 - 09:30:11 | -4542 |
| George/Scottsdale | 09:14:51 | -52.8 | Dark | Down | 51.8 | 118.3 | Up | 08:59:51 - 09:29:51 | -4641 |
| Dunrhomin | 09:13:33 | -45.0 | Dark | Down | 52.2 | 132.8 | Up | 08:58:33 - 09:28:33 | -4654 |
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 04TF282, (2026/10/17 09:14UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 4.38 157 Bellatrix 05:25:07.8 +06:20:58 1.6 6.95 152 PPM 149523 05:50:02.7 +09:52:15 6.4 1.64 159 PPM 121369 05:46:00.1 +10:47:55 8.5 0.32 159 PPM 121349 05:44:59.2 +11:02:20 9.6 0.17 159 04TF282 05:45:38.0 +11:06:12 15.2 159 Positions are for J2000
Event circumstances last updated at 2022/01/17 23:46:27 UT
Marc W. Buie, Southwest Research Institute