Event between (517717) 15KZ120 and star GA1360:01750098 with event index number of 2628261
Geocentric closest approach at 2026/01/21 10:55:23 UTC
J2000 position of star is 03:44:06.2 +46:05:12
Equinox of date position of star is 03:45:42.7 +46:09:26
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 92 degrees from the moon.
Moon is 7% illuminated.
TNO apparent brightness V=22.1
[RECON map]
TNO is 15.0 AU from the Sun
and 14.5 AU from the Earth.
The TNO is moving 24.4
km/sec on the sky relative to the star, or,
8.4 arcsec/hr.
The 1-sigma error in the time of the event is 163 seconds.
The 1-sigma cross-track error in the shadow position is
2798 km.
The sky-plane scale is
10491.7 km/arcsec.
The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 2.3 sec chord
Diameter=23.5 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2026/01/21 10:55UT) Object RA Dec mag sep mel Aldebaran 04:37:25.1 +16:33:35 0.8 31.49 97 Mirphak 03:26:11.8 +49:57:06 1.8 5.02 90 PPM 046481 03:46:31.2 +46:10:48 6.1 0.10 92 517717 03:45:56.4 +46:10:02 17.0 93 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 27.3 km
RECON observability=0.5 and success probability=9.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 10:51:22 | -37.4 | Dark | Down | 20.1 | 321.1 | Low | 10:37:15 - 11:05:28 | -3141 |
| Kamloops | 10:51:38 | -46.1 | Dark | Down | 25.2 | 313.0 | Low | 10:37:32 - 11:05:45 | -3908 |
| Kelowna | 10:51:37 | -46.0 | Dark | Down | 24.3 | 313.7 | Low | 10:37:30 - 11:05:43 | -3943 |
| Dunrhomin | 10:51:17 | -39.3 | Dark | Down | 10.5 | 323.5 | Really Low | 10:37:11 - 11:05:24 | -3944 |
| Peachland | 10:51:37 | -46.3 | Dark | Down | 24.3 | 313.6 | Low | 10:37:30 - 11:05:43 | -3965 |
| CU-SBO | 10:51:17 | -39.4 | Dark | Down | 10.3 | 323.5 | Really Low | 10:37:11 - 11:05:24 | -3967 |
| Summerland | 10:51:37 | -46.3 | Dark | Down | 24.2 | 313.7 | Low | 10:37:30 - 11:05:43 | -3974 |
| Penticton | 10:51:37 | -46.2 | Dark | Down | 24.1 | 313.8 | Low | 10:37:30 - 11:05:43 | -3975 |
| Oliver | 10:51:37 | -46.4 | Dark | Down | 23.8 | 313.9 | Low | 10:37:30 - 11:05:43 | -4005 |
| Anarchist Mountain Observatory | 10:51:36 | -46.4 | Dark | Down | 23.6 | 314.1 | Low | 10:37:30 - 11:05:43 | -4012 |
| Okanogan | 10:51:37 | -46.8 | Dark | Down | 23.3 | 314.1 | Low | 10:37:30 - 11:05:43 | -4076 |
| Brewster | 10:51:37 | -47.0 | Dark | Down | 23.2 | 314.1 | Low | 10:37:30 - 11:05:43 | -4108 |
| Manson/Chelan | 10:51:37 | -47.4 | Dark | Down | 23.2 | 314.0 | Low | 10:37:31 - 11:05:44 | -4142 |
| Wenatchee | 10:51:38 | -47.7 | Dark | Down | 23.0 | 314.0 | Low | 10:37:31 - 11:05:44 | -4190 |
| Victoria | 10:51:42 | -48.9 | Dark | Down | 25.2 | 312.0 | Low | 10:37:36 - 11:05:49 | -4217 |
| Ellensburg | 10:51:38 | -48.0 | Dark | Down | 22.8 | 314.0 | Low | 10:37:31 - 11:05:44 | -4234 |
| PNWRO | 10:51:35 | -47.4 | Dark | Down | 21.3 | 315.2 | Low | 10:37:29 - 11:05:42 | -4246 |
| Yakima | 10:51:38 | -48.2 | Dark | Down | 22.5 | 314.2 | Low | 10:37:31 - 11:05:44 | -4270 |
| Toppenish/White Swan | 10:51:37 | -48.2 | Dark | Down | 22.3 | 314.3 | Low | 10:37:31 - 11:05:44 | -4281 |
| The Dalles | 10:51:39 | -49.0 | Dark | Down | 22.1 | 314.1 | Low | 10:37:32 - 11:05:45 | -4381 |
| Maupin | 10:51:39 | -49.1 | Dark | Down | 21.8 | 314.3 | Low | 10:37:32 - 11:05:45 | -4412 |
| Sisters | 10:51:40 | -49.8 | Dark | Down | 21.4 | 314.3 | Low | 10:37:33 - 11:05:46 | -4509 |
| Bend | 10:51:39 | -49.7 | Dark | Down | 21.1 | 314.5 | Low | 10:37:33 - 11:05:46 | -4517 |
| Oregon Observatory | 10:51:40 | -49.9 | Dark | Down | 21.1 | 314.5 | Low | 10:37:33 - 11:05:46 | -4538 |
| Chiloquin | 10:51:40 | -50.7 | Dark | Down | 20.4 | 314.6 | Low | 10:37:34 - 11:05:47 | -4667 |
| Cedarville | 10:51:38 | -49.9 | Dark | Down | 18.7 | 315.7 | Really Low | 10:37:31 - 11:05:44 | -4676 |
| Klamath Falls | 10:51:41 | -50.8 | Dark | Down | 20.1 | 314.8 | Low | 10:37:34 - 11:05:47 | -4692 |
| Fall River/Burney | 10:51:40 | -50.9 | Dark | Down | 19.0 | 315.2 | Really Low | 10:37:34 - 11:05:47 | -4772 |
| George/Scottsdale | 10:51:29 | -45.2 | Dark | Down | 8.5 | 320.8 | Really Low | 10:37:22 - 11:05:35 | -4814 |
| Patrick | 10:51:31 | -46.7 | Dark | Down | 10.9 | 319.7 | Really Low | 10:37:25 - 11:05:38 | -4815 |
| Reno | 10:51:38 | -50.3 | Dark | Down | 17.1 | 316.3 | Really Low | 10:37:32 - 11:05:45 | -4819 |
| Gimple | 10:51:40 | -50.9 | Dark | Down | 18.1 | 315.7 | Really Low | 10:37:33 - 11:05:46 | -4821 |
| Greenville | 10:51:40 | -50.9 | Dark | Down | 18.2 | 315.7 | Really Low | 10:37:33 - 11:05:46 | -4825 |
| Portola | 10:51:39 | -50.7 | Dark | Down | 17.7 | 316.0 | Really Low | 10:37:33 - 11:05:46 | -4829 |
| Yerington | 10:51:37 | -50.0 | Dark | Down | 16.4 | 316.7 | Really Low | 10:37:31 - 11:05:44 | -4830 |
| Hawthorne | 10:51:37 | -49.7 | Dark | Down | 15.8 | 317.1 | Really Low | 10:37:30 - 11:05:43 | -4840 |
| Quincy | 10:51:40 | -51.0 | Dark | Down | 18.0 | 315.7 | Really Low | 10:37:33 - 11:05:46 | -4841 |
| Carson City | 10:51:38 | -50.4 | Dark | Down | 16.8 | 316.4 | Really Low | 10:37:32 - 11:05:45 | -4846 |
| Gardnerville | 10:51:38 | -50.4 | Dark | Down | 16.6 | 316.5 | Really Low | 10:37:32 - 11:05:45 | -4864 |
| Beatty | 10:51:35 | -48.7 | Dark | Down | 13.6 | 318.2 | Really Low | 10:37:28 - 11:05:41 | -4867 |
| Laughlin/Bullhead City | 10:51:32 | -47.3 | Dark | Down | 11.1 | 319.5 | Really Low | 10:37:26 - 11:05:39 | -4873 |
| Lake Havasu City | 10:51:32 | -47.2 | Dark | Down | 10.4 | 319.7 | Really Low | 10:37:26 - 11:05:39 | -4907 |
| Lee Vining | 10:51:38 | -50.2 | Dark | Down | 15.6 | 317.0 | Really Low | 10:37:31 - 11:05:44 | -4910 |
| Bishop | 10:51:37 | -49.8 | Dark | Down | 14.8 | 317.4 | Really Low | 10:37:30 - 11:05:43 | -4919 |
| Yuma | 10:51:34 | -47.6 | Dark | Down | 9.2 | 319.7 | Really Low | 10:37:27 - 11:05:40 | -5054 |
| Calipatria | 10:51:35 | -48.3 | Dark | Down | 10.1 | 319.3 | Really Low | 10:37:29 - 11:05:42 | -5075 |
| Idyllwild | 10:51:37 | -49.2 | Dark | Down | 11.2 | 318.7 | Really Low | 10:37:30 - 11:05:43 | -5100 |
| Wildwood | 10:51:40 | -50.7 | Dark | Down | 12.5 | 317.8 | Really Low | 10:37:33 - 11:05:46 | -5177 |
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 517717, (2026/01/21 10:55UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 31.49 97 Mirphak 03:24:19.4 +49:51:40 1.8 5.02 90 PPM 046481 03:44:40.9 +46:05:59 6.1 0.10 92 517717 03:44:06.2 +46:05:12 17.0 92 Positions are for J2000
Event circumstances last updated at 2022/10/31 01:35:26 UT
Marc W. Buie, Southwest Research Institute