Event between (517717) 15KZ120 and star GA1380:01828526 with event index number of 2628050
Geocentric closest approach at 2025/03/19 05:30:44 UTC
J2000 position of star is 03:30:42.1 +49:33:42
Equinox of date position of star is 03:32:20.8 +49:38:18
Stellar brightness G=11.9,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 153 degrees from the moon.
Moon is 80% illuminated.
TNO apparent brightness V=21.9
[RECON map]
TNO is 13.9 AU from the Sun
and 14.2 AU from the Earth.
The TNO is moving 25.7
km/sec on the sky relative to the star, or,
9.0 arcsec/hr.
The 1-sigma error in the time of the event is 108 seconds.
The 1-sigma cross-track error in the shadow position is
2963 km.
The sky-plane scale is
10307.9 km/arcsec.
The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 2.2 sec chord
Diameter=23.5 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2025/03/19 05:30UT) Object RA Dec mag sep mel Aldebaran 04:37:22.2 +16:33:29 0.8 35.60 160 Mirphak 03:26:08.2 +49:56:56 1.8 1.07 153 34 Per 03:31:11.0 +49:35:39 4.5 0.22 153 PPM 046269 03:33:04.0 +49:47:26 8.5 0.17 153 517717 03:32:31.2 +49:38:47 11.9 153 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 4.4 km
RECON observability=1.0 and success probability=3.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Dunrhomin | 05:31:35 | -44.5 | Dark | Down | 22.8 | 316.5 | Low | 05:22:05 - 05:41:05 | 5769 |
| CU-SBO | 05:31:36 | -44.7 | Dark | Down | 22.7 | 316.5 | Low | 05:22:06 - 05:41:06 | 5769 |
| George/Scottsdale | 05:32:09 | -46.0 | Dark | Down | 21.7 | 316.0 | Low | 05:22:39 - 05:41:39 | 5535 |
| Sleaford | 05:30:58 | -34.2 | Dark | Down | 31.6 | 311.7 | Up | 05:21:28 - 05:40:28 | 5459 |
| Patrick | 05:32:08 | -43.6 | Dark | Down | 24.1 | 314.8 | Low | 05:22:38 - 05:41:38 | 5439 |
| Kingman/Dolan Springs | 05:32:09 | -43.7 | Dark | Down | 24.1 | 314.8 | Low | 05:22:39 - 05:41:39 | 5430 |
| Parker | 05:32:13 | -44.2 | Dark | Down | 23.5 | 315.1 | Low | 05:22:43 - 05:41:43 | 5418 |
| Lake Havasu City | 05:32:11 | -44.0 | Dark | Down | 23.7 | 315.0 | Low | 05:22:41 - 05:41:41 | 5417 |
| Mohave Valley | 05:32:11 | -43.5 | Dark | Down | 24.2 | 314.8 | Low | 05:22:41 - 05:41:41 | 5404 |
| Laughlin/Bullhead City | 05:32:10 | -43.4 | Dark | Down | 24.4 | 314.7 | Low | 05:22:40 - 05:41:40 | 5404 |
| Yuma | 05:32:18 | -44.9 | Dark | Down | 22.6 | 315.4 | Low | 05:22:48 - 05:41:48 | 5397 |
| Henderson | 05:32:08 | -42.5 | Dark | Down | 25.2 | 314.3 | Low | 05:22:38 - 05:41:38 | 5384 |
| Calipatria | 05:32:18 | -44.1 | Dark | Down | 23.4 | 315.0 | Low | 05:22:48 - 05:41:48 | 5353 |
| Indian Springs | 05:32:07 | -41.8 | Dark | Down | 26.0 | 313.8 | Low | 05:22:37 - 05:41:37 | 5349 |
| Idyllwild | 05:32:18 | -42.9 | Dark | Down | 24.6 | 314.5 | Low | 05:22:48 - 05:41:48 | 5295 |
| Beatty | 05:32:08 | -40.9 | Dark | Down | 26.8 | 313.4 | Low | 05:22:38 - 05:41:38 | 5294 |
| Tonopah | 05:32:05 | -39.9 | Dark | Down | 27.9 | 312.8 | Low | 05:22:35 - 05:41:35 | 5269 |
| Bishop | 05:32:09 | -39.6 | Dark | Down | 28.1 | 312.7 | Low | 05:22:39 - 05:41:39 | 5210 |
| Hawthorne | 05:32:06 | -38.7 | Dark | Down | 29.0 | 312.1 | Low | 05:22:36 - 05:41:36 | 5195 |
| Wildwood | 05:32:21 | -41.4 | Dark | Down | 26.0 | 313.8 | Low | 05:22:51 - 05:41:51 | 5195 |
| Lee Vining | 05:32:09 | -38.8 | Dark | Down | 28.9 | 312.2 | Low | 05:22:39 - 05:41:39 | 5172 |
| Yerington | 05:32:05 | -38.1 | Dark | Down | 29.6 | 311.8 | Low | 05:22:35 - 05:41:35 | 5166 |
| Gardnerville | 05:32:06 | -37.8 | Dark | Down | 30.0 | 311.6 | Low | 05:22:36 - 05:41:36 | 5136 |
| Carson City | 05:32:05 | -37.6 | Dark | Down | 30.1 | 311.5 | Up | 05:22:35 - 05:41:35 | 5133 |
| Reno | 05:32:04 | -37.3 | Dark | Down | 30.4 | 311.3 | Up | 05:22:34 - 05:41:34 | 5131 |
| PNWRO | 05:31:39 | -33.6 | Dark | Down | 34.1 | 308.5 | Up | 05:22:09 - 05:41:09 | 5116 |
| Cedarville | 05:31:58 | -35.9 | Dark | Down | 31.9 | 310.3 | Up | 05:22:28 - 05:41:28 | 5102 |
| Portola | 05:32:04 | -36.8 | Dark | Down | 31.0 | 311.0 | Up | 05:22:34 - 05:41:34 | 5096 |
| Lakeview | 05:31:55 | -35.4 | Dark | Down | 32.4 | 309.9 | Up | 05:22:25 - 05:41:25 | 5088 |
| Susanville | 05:32:02 | -36.3 | Dark | Down | 31.5 | 310.6 | Up | 05:22:32 - 05:41:32 | 5083 |
| Gimple | 05:32:03 | -36.3 | Dark | Down | 31.4 | 310.7 | Up | 05:22:33 - 05:41:33 | 5074 |
| Quincy | 05:32:04 | -36.4 | Dark | Down | 31.3 | 310.7 | Up | 05:22:34 - 05:41:34 | 5070 |
| Greenville | 05:32:03 | -36.3 | Dark | Down | 31.4 | 310.6 | Up | 05:22:33 - 05:41:33 | 5069 |
| Okanogan | 05:31:15 | -31.6 | Dark | Down | 36.0 | 306.8 | Up | 05:21:45 - 05:40:45 | 5064 |
| Brewster | 05:31:15 | -31.7 | Dark | Down | 35.9 | 306.9 | Up | 05:21:45 - 05:40:45 | 5063 |
| Tonasket | 05:31:15 | -31.5 | Dark | Down | 36.1 | 306.7 | Up | 05:21:45 - 05:40:45 | 5062 |
| Anarchist Mountain Observatory | 05:31:15 | -31.3 | Dark | Down | 36.2 | 306.5 | Up | 05:21:45 - 05:40:45 | 5058 |
| North Lake | 05:31:52 | -34.4 | Dark | Down | 33.4 | 309.1 | Up | 05:22:22 - 05:41:22 | 5052 |
| Oliver | 05:31:15 | -31.1 | Dark | Down | 36.4 | 306.4 | Up | 05:21:45 - 05:40:45 | 5045 |
| Fall River/Burney | 05:32:01 | -35.5 | Dark | Down | 32.3 | 310.1 | Up | 05:22:31 - 05:41:31 | 5042 |
| Toppenish/White Swan | 05:31:40 | -32.6 | Dark | Down | 35.1 | 307.6 | Up | 05:22:10 - 05:41:10 | 5041 |
| Penticton | 05:31:15 | -30.8 | Dark | Down | 36.6 | 306.1 | Up | 05:21:45 - 05:40:45 | 5036 |
| Kelowna | 05:31:15 | -30.7 | Dark | Down | 36.8 | 306.0 | Up | 05:21:45 - 05:40:45 | 5032 |
| Yakima | 05:31:40 | -32.4 | Dark | Down | 35.4 | 307.4 | Up | 05:22:10 - 05:41:10 | 5030 |
| Summerland | 05:31:15 | -30.7 | Dark | Down | 36.7 | 306.0 | Up | 05:21:45 - 05:40:45 | 5030 |
| Manson/Chelan | 05:31:34 | -31.7 | Dark | Down | 35.9 | 306.9 | Up | 05:22:04 - 05:41:04 | 5029 |
| Wenatchee | 05:31:37 | -31.9 | Dark | Down | 35.7 | 307.1 | Up | 05:22:07 - 05:41:07 | 5029 |
| Goldendale | 05:31:43 | -32.7 | Dark | Down | 35.0 | 307.8 | Up | 05:22:13 - 05:41:13 | 5028 |
| Ellensburg | 05:31:38 | -32.1 | Dark | Down | 35.6 | 307.2 | Up | 05:22:08 - 05:41:08 | 5025 |
| Bend | 05:31:50 | -33.6 | Dark | Down | 34.2 | 308.5 | Up | 05:22:20 - 05:41:20 | 5024 |
| Maupin | 05:31:45 | -33.0 | Dark | Down | 34.8 | 308.0 | Up | 05:22:15 - 05:41:15 | 5023 |
| Peachland | 05:31:15 | -30.6 | Dark | Down | 36.9 | 305.9 | Up | 05:21:45 - 05:40:45 | 5022 |
| Oregon Observatory | 05:31:51 | -33.7 | Dark | Down | 34.1 | 308.6 | Up | 05:22:21 - 05:41:21 | 5019 |
| Klamath Falls | 05:31:57 | -34.5 | Dark | Down | 33.3 | 309.3 | Up | 05:22:27 - 05:41:27 | 5015 |
| The Dalles | 05:31:44 | -32.7 | Dark | Down | 35.1 | 307.7 | Up | 05:22:14 - 05:41:14 | 5013 |
| Chiloquin | 05:31:56 | -34.2 | Dark | Down | 33.5 | 309.1 | Up | 05:22:26 - 05:41:26 | 5009 |
| Sisters | 05:31:50 | -33.3 | Dark | Down | 34.5 | 308.3 | Up | 05:22:20 - 05:41:20 | 5009 |
| Kamloops | 05:31:15 | -29.7 | Dark | Down | 37.7 | 305.1 | Up | 05:21:45 - 05:40:45 | 4974 |
| Victoria | 05:31:36 | -29.6 | Dark | Down | 38.1 | 305.0 | Up | 05:22:06 - 05:41:06 | 4868 |
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, (2025/03/19 05:30UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 35.60 160 Mirphak 03:24:19.4 +49:51:40 1.8 1.07 153 34 Per 03:29:22.1 +49:30:32 4.5 0.22 153 PPM 046269 03:31:14.7 +49:42:23 8.5 0.17 153 517717 03:30:42.1 +49:33:42 11.9 153 Positions are for J2000
Event circumstances last updated at 2022/10/25 03:25:02 UT
Marc W. Buie, Southwest Research Institute