Event between 13TP187 and star GA0880:00295432 with event index number of 2728746
Geocentric closest approach at 2025/10/07 06:41:28 UTC
J2000 position of star is 03:14:09.7 -01:29:06
Equinox of date position of star is 03:15:16.5 -01:24:16
Stellar brightness G=15.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 36 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=23.2
[RECON map]
TNO is 41.7 AU from the Sun
and 40.9 AU from the Earth.
The TNO is moving 21.9
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 210 seconds.
The 1-sigma cross-track error in the shadow position is
3148 km.
The sky-plane scale is
29690.8 km/arcsec.
The TNO has an absolute magnitude Hv=6.9
Diameter=245.5 km assuming a 5% albedo -- 11.2 sec chord
Diameter=100.2 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is SCATNEAR
Star training set for 13TP187, (2025/10/07 06:41UT) Object RA Dec mag sep mel Aldebaran 04:37:24.1 +16:33:33 0.8 27.03 54 Menkar 03:03:37.8 +04:11:22 2.5 6.32 32 94 Cet 03:14:05.4 -01:06:04 5.1 0.45 36 PPM 175272 03:16:41.5 -01:05:05 8.5 0.43 36 13TP187 03:15:28.3 -01:23:25 15.0 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
4.3 sigma about the mid-time.
The median site spacing is 8.4 km
RECON observability=1.0 and success probability=6.2%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Victoria | 06:41:32 | -43.9 | Dark | Up | 20.9 | 118.3 | Low | 06:26:32 - 06:56:32 | 3424 |
Kamloops | 06:41:18 | -42.8 | Dark | Up | 21.5 | 121.6 | Low | 06:26:18 - 06:56:18 | 3394 |
Peachland | 06:41:21 | -43.8 | Dark | Up | 22.3 | 121.9 | Low | 06:26:21 - 06:56:21 | 3363 |
Summerland | 06:41:22 | -43.9 | Dark | Up | 22.4 | 121.9 | Low | 06:26:22 - 06:56:22 | 3357 |
Kelowna | 06:41:20 | -43.7 | Dark | Up | 22.4 | 122.2 | Low | 06:26:20 - 06:56:20 | 3357 |
Penticton | 06:41:22 | -44.0 | Dark | Up | 22.5 | 122.0 | Low | 06:26:22 - 06:56:22 | 3353 |
Oliver | 06:41:23 | -44.3 | Dark | Up | 22.7 | 121.9 | Low | 06:26:23 - 06:56:23 | 3346 |
Anarchist Mountain Observatory | 06:41:24 | -44.6 | Dark | Up | 22.9 | 122.0 | Low | 06:26:24 - 06:56:24 | 3338 |
Manson/Chelan | 06:41:30 | -45.4 | Dark | Up | 23.1 | 120.9 | Low | 06:26:30 - 06:56:30 | 3333 |
Tonasket | 06:41:25 | -44.8 | Dark | Up | 23.1 | 121.8 | Low | 06:26:25 - 06:56:25 | 3333 |
Okanogan | 06:41:27 | -45.1 | Dark | Up | 23.2 | 121.6 | Low | 06:26:27 - 06:56:27 | 3329 |
Brewster | 06:41:28 | -45.3 | Dark | Up | 23.2 | 121.3 | Low | 06:26:28 - 06:56:28 | 3328 |
Wenatchee | 06:41:32 | -45.8 | Dark | Up | 23.2 | 120.6 | Low | 06:26:32 - 06:56:32 | 3326 |
Ellensburg | 06:41:34 | -46.1 | Dark | Up | 23.3 | 120.2 | Low | 06:26:34 - 06:56:34 | 3323 |
Yakima | 06:41:37 | -46.5 | Dark | Up | 23.5 | 120.1 | Low | 06:26:37 - 06:56:37 | 3313 |
The Dalles | 06:41:42 | -47.2 | Dark | Up | 23.6 | 119.2 | Low | 06:26:42 - 06:56:42 | 3303 |
Toppenish/White Swan | 06:41:37 | -46.7 | Dark | Up | 23.7 | 120.1 | Low | 06:26:37 - 06:56:37 | 3303 |
Goldendale | 06:41:40 | -47.1 | Dark | Up | 23.8 | 119.6 | Low | 06:26:40 - 06:56:40 | 3300 |
Maupin | 06:41:44 | -47.6 | Dark | Up | 23.9 | 119.1 | Low | 06:26:44 - 06:56:44 | 3290 |
Sisters | 06:41:48 | -48.2 | Dark | Up | 24.1 | 118.4 | Low | 06:26:48 - 06:56:48 | 3279 |
Redmond | 06:41:48 | -48.4 | Dark | Up | 24.3 | 118.7 | Low | 06:26:48 - 06:56:48 | 3268 |
Pasco | 06:41:35 | -47.2 | Dark | Up | 24.5 | 121.2 | Low | 06:26:35 - 06:56:35 | 3267 |
Bend | 06:41:49 | -48.5 | Dark | Up | 24.3 | 118.5 | Low | 06:26:49 - 06:56:49 | 3265 |
Oregon Observatory | 06:41:50 | -48.6 | Dark | Up | 24.3 | 118.3 | Low | 06:26:50 - 06:56:50 | 3264 |
La Pine/Gilchrist | 06:41:50 | -48.8 | Dark | Up | 24.4 | 118.2 | Low | 06:26:50 - 06:56:50 | 3259 |
PNWRO | 06:41:36 | -47.5 | Dark | Up | 24.8 | 121.3 | Low | 06:26:36 - 06:56:36 | 3255 |
Chiloquin | 06:41:56 | -49.6 | Dark | Up | 24.7 | 117.5 | Low | 06:26:56 - 06:56:56 | 3235 |
North Lake | 06:41:52 | -49.4 | Dark | Up | 25.0 | 118.5 | Low | 06:26:52 - 06:56:52 | 3231 |
Klamath Falls | 06:41:58 | -50.0 | Dark | Up | 24.9 | 117.4 | Low | 06:26:58 - 06:56:58 | 3222 |
Paisley | 06:41:53 | -50.0 | Dark | Up | 25.5 | 118.6 | Low | 06:26:53 - 06:56:53 | 3204 |
Lakeview | 06:41:55 | -50.5 | Dark | Up | 25.9 | 118.6 | Low | 06:26:55 - 06:56:55 | 3182 |
Fall River/Burney | 06:42:02 | -51.1 | Dark | Up | 25.7 | 117.2 | Low | 06:27:02 - 06:57:02 | 3173 |
Cedarville | 06:41:57 | -51.1 | Dark | Up | 26.3 | 118.4 | Low | 06:26:57 - 06:56:57 | 3156 |
Susanville | 06:42:03 | -52.0 | Dark | Up | 26.5 | 117.6 | Low | 06:27:03 - 06:57:03 | 3131 |
Greenville | 06:42:05 | -52.1 | Dark | Up | 26.4 | 117.2 | Low | 06:27:05 - 06:57:05 | 3129 |
Gimple | 06:42:05 | -52.1 | Dark | Up | 26.5 | 117.3 | Low | 06:27:05 - 06:57:05 | 3126 |
Quincy | 06:42:06 | -52.3 | Dark | Up | 26.5 | 117.1 | Low | 06:27:06 - 06:57:06 | 3121 |
Portola | 06:42:05 | -52.6 | Dark | Up | 26.9 | 117.5 | Low | 06:27:05 - 06:57:05 | 3104 |
Reno | 06:42:05 | -53.0 | Dark | Up | 27.5 | 117.9 | Low | 06:27:05 - 06:57:05 | 3075 |
Carson City | 06:42:07 | -53.4 | Dark | Up | 27.7 | 117.7 | Low | 06:27:07 - 06:57:07 | 3061 |
Gardnerville | 06:42:08 | -53.6 | Dark | Up | 27.8 | 117.7 | Low | 06:27:08 - 06:57:08 | 3050 |
Yerington | 06:42:06 | -53.8 | Dark | Up | 28.2 | 118.2 | Low | 06:27:06 - 06:57:06 | 3035 |
Sleaford | 06:40:46 | -43.5 | Dark | Up | 27.6 | 135.9 | Low | 06:25:46 - 06:55:46 | 3034 |
Hawthorne | 06:42:07 | -54.4 | Dark | Up | 28.8 | 118.4 | Low | 06:27:07 - 06:57:07 | 3001 |
Lee Vining | 06:42:11 | -54.7 | Dark | Up | 28.7 | 117.7 | Low | 06:27:11 - 06:57:11 | 2994 |
Bishop | 06:42:12 | -55.5 | Dark | Up | 29.5 | 118.0 | Low | 06:27:12 - 06:57:12 | 2946 |
Tonopah | 06:42:06 | -55.3 | Dark | Up | 30.0 | 119.3 | Low | 06:27:06 - 06:57:06 | 2939 |
CPSLO | 06:42:25 | -56.4 | Dark | Up | 28.8 | 115.2 | Low | 06:27:25 - 06:57:25 | 2926 |
Beatty | 06:42:10 | -56.5 | Dark | Up | 30.9 | 119.1 | Up | 06:27:10 - 06:57:10 | 2875 |
Indian Springs | 06:42:09 | -57.1 | Dark | Up | 31.8 | 119.9 | Up | 06:27:09 - 06:57:09 | 2825 |
Wildwood | 06:42:26 | -58.3 | Dark | Up | 30.9 | 116.2 | Up | 06:27:26 - 06:57:26 | 2807 |
Henderson | 06:42:09 | -57.8 | Dark | Up | 32.5 | 120.2 | Up | 06:27:09 - 06:57:09 | 2778 |
Idyllwild | 06:42:23 | -59.4 | Dark | Up | 32.5 | 117.5 | Up | 06:27:23 - 06:57:23 | 2729 |
Laughlin/Bullhead City | 06:42:12 | -58.8 | Dark | Up | 33.3 | 120.0 | Up | 06:27:12 - 06:57:12 | 2723 |
Patrick | 06:42:09 | -58.7 | Dark | Up | 33.6 | 120.8 | Up | 06:27:09 - 06:57:09 | 2711 |
Mohave Valley | 06:42:13 | -59.0 | Dark | Up | 33.4 | 119.9 | Up | 06:27:13 - 06:57:13 | 2710 |
Kingman/Dolan Springs | 06:42:11 | -58.9 | Dark | Up | 33.6 | 120.5 | Up | 06:27:11 - 06:57:11 | 2707 |
Lake Havasu City | 06:42:14 | -59.5 | Dark | Up | 33.8 | 119.9 | Up | 06:27:14 - 06:57:14 | 2683 |
Parker | 06:42:16 | -59.8 | Dark | Up | 34.0 | 119.7 | Up | 06:27:16 - 06:57:16 | 2664 |
Calipatria | 06:42:23 | -60.4 | Dark | Up | 33.6 | 118.1 | Up | 06:27:23 - 06:57:23 | 2657 |
Blythe | 06:42:19 | -60.2 | Dark | Up | 34.1 | 119.1 | Up | 06:27:19 - 06:57:19 | 2649 |
Dunrhomin | 06:41:29 | -55.3 | Dark | Up | 36.2 | 131.5 | Up | 06:26:29 - 06:56:29 | 2613 |
Yuma | 06:42:22 | -61.1 | Dark | Up | 34.5 | 118.6 | Up | 06:27:22 - 06:57:22 | 2604 |
George/Scottsdale | 06:42:12 | -60.9 | Dark | Up | 35.9 | 121.5 | Up | 06:27:12 - 06:57:12 | 2556 |
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 13TP187, (2025/10/07 06:41UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 27.03 54 Menkar 03:02:16.8 +04:05:21 2.5 6.32 32 94 Cet 03:12:46.7 -01:11:47 5.1 0.45 36 PPM 175272 03:15:22.8 -01:10:44 8.5 0.43 36 13TP187 03:14:09.7 -01:29:06 15.0 36 Positions are for J2000
Event circumstances last updated at 2021/12/02 02:41:06 UT
Marc W. Buie, Southwest Research Institute