Event between (559800) 15DW224 and star GA0820:04705317 with event index number of 2346271
Geocentric closest approach at 2026/08/18 03:25:27 UTC
J2000 position of star is 15:18:49.4 -07:09:01
Equinox of date position of star is 15:20:06.2 -07:14:11
Stellar brightness G=14.1,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 22 degrees from the moon.
Moon is 31% illuminated.
Apparent brightness V=22.6
[RECON map]
Object is 39.8 AU from the Sun
and 39.9 AU from the Earth.
Apparent velocity is 11.8
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 178 seconds.
The 1-sigma cross-track error in the shadow position is
2100 km.
The sky-plane scale is
28960.5 km/arcsec.
The object has an absolute magnitude Hv=6.4
Diameter=307.6 km assuming a 5% albedo -- 26.5 sec chord
Diameter=125.6 km assuming a 30% albedo -- 10.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 559800, (2026/08/18 03:38UT) Object RA Dec mag sep mel Antares 16:31:02.7 -26:29:19 0.9 25.56 37 27Bet Lib 15:18:26.7 -09:28:46 2.6 2.28 21 PPM 198488 15:22:32.2 -05:55:10 5.4 1.44 23 PPM 198498 15:22:57.7 -06:55:16 7.6 0.75 23 PPM 198444 15:19:55.9 -07:30:55 9.2 0.28 22 559800 15:20:14.7 -07:14:45 14.1 23 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
5.1 sigma about the mid-time.
The median site spacing is 0.0 km
RECON observability=0.1 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Dunrhomin | 03:22:19 | -15.9 | AT | Up | 28.7 | 229.5 | Low | 03:07:19 - 03:37:19 | -1486 |
| Nikitin | 03:22:20 | -16.0 | AT | Up | 28.8 | 229.5 | Low | 03:07:20 - 03:37:20 | -1486 |
| CU-SBO | 03:22:24 | -16.0 | AT | Up | 28.9 | 229.5 | Low | 03:07:24 - 03:37:24 | -1490 |
| Sleaford | 03:20:50 | -8.6 | NT | Up | 21.2 | 224.4 | Low | 03:05:50 - 03:35:50 | -1665 |
| George/Scottsdale | 03:22:47 | -14.6 | AT | Up | 37.0 | 226.4 | Up | 03:07:47 - 03:37:47 | -1892 |
| Patrick | 03:22:28 | -12.3 | AT | Up | 37.0 | 223.4 | Up | 03:07:28 - 03:37:28 | -2002 |
| Lake Havasu City | 03:22:33 | -12.4 | AT | Up | 37.9 | 223.4 | Up | 03:07:33 - 03:37:33 | -2041 |
| Laughlin/Bullhead City | 03:22:26 | -11.9 | NT | Up | 37.6 | 222.8 | Up | 03:07:26 - 03:37:26 | -2050 |
| Yuma | 03:22:47 | -13.0 | AT | Up | 39.4 | 224.1 | Up | 03:07:47 - 03:37:47 | -2084 |
| Calipatria | 03:22:41 | -12.1 | AT | Up | 39.6 | 222.9 | Up | 03:07:41 - 03:37:41 | -2138 |
| Beatty | 03:22:05 | -9.5 | NT | Up | 37.5 | 219.5 | Up | 03:07:05 - 03:37:05 | -2172 |
| Idyllwild | 03:22:28 | -10.9 | NT | Up | 39.8 | 221.3 | Up | 03:07:28 - 03:37:28 | -2207 |
| PNWRO | 03:20:53 | -4.1 | CT | Up | 31.2 | 213.2 | Up | 03:05:53 - 03:35:53 | -2254 |
| Bishop | 03:21:56 | -8.1 | NT | Up | 37.9 | 217.4 | Up | 03:06:56 - 03:36:56 | -2273 |
| Hawthorne | 03:21:49 | -7.5 | NT | Up | 37.1 | 216.6 | Up | 03:06:49 - 03:36:49 | -2276 |
| Anarchist Mountain Observatory | 03:20:32 | -2.6 | CT | Up | 28.9 | 211.6 | Low | 03:05:32 - 03:35:32 | -2283 |
| Kelowna | 03:20:26 | -2.2 | CT | Up | 28.2 | 211.3 | Low | 03:05:26 - 03:35:26 | -2292 |
| Okanogan | 03:20:36 | -2.7 | CT | Up | 29.5 | 211.6 | Low | 03:05:36 - 03:35:36 | -2295 |
| Oliver | 03:20:31 | -2.4 | CT | Up | 28.8 | 211.4 | Low | 03:05:31 - 03:35:31 | -2295 |
| Penticton | 03:20:29 | -2.2 | CT | Up | 28.5 | 211.3 | Low | 03:05:29 - 03:35:29 | -2296 |
| Summerland | 03:20:28 | -2.1 | CT | Up | 28.5 | 211.1 | Low | 03:05:28 - 03:35:28 | -2302 |
| Brewster | 03:20:37 | -2.7 | CT | Up | 29.8 | 211.5 | Low | 03:05:37 - 03:35:37 | -2305 |
| Yerington | 03:21:43 | -6.9 | NT | Up | 37.0 | 215.8 | Up | 03:06:43 - 03:36:43 | -2306 |
| Peachland | 03:20:26 | -2.0 | CT | Up | 28.4 | 211.0 | Low | 03:05:26 - 03:35:26 | -2307 |
| Lee Vining | 03:21:49 | -7.3 | NT | Up | 37.8 | 216.3 | Up | 03:06:49 - 03:36:49 | -2314 |
| Manson/Chelan | 03:20:38 | -2.6 | CT | Up | 30.1 | 211.1 | Up | 03:05:38 - 03:35:38 | -2326 |
| Wildwood | 03:22:21 | -9.3 | NT | Up | 40.6 | 219.0 | Up | 03:07:21 - 03:37:21 | -2330 |
| Wenatchee | 03:20:40 | -2.6 | CT | Up | 30.6 | 211.1 | Up | 03:05:40 - 03:35:40 | -2336 |
| Toppenish/White Swan | 03:20:45 | -3.0 | CT | Up | 31.5 | 211.4 | Up | 03:05:45 - 03:35:45 | -2341 |
| Kamloops | 03:20:19 | -1.3 | CT | Up | 27.8 | 210.1 | Low | 03:05:19 - 03:35:19 | -2342 |
| Reno | 03:21:36 | -6.2 | NT | Up | 36.9 | 214.8 | Up | 03:06:36 - 03:36:36 | -2343 |
| Gardnerville | 03:21:41 | -6.5 | NT | Up | 37.3 | 215.2 | Up | 03:06:41 - 03:36:41 | -2345 |
| Carson City | 03:21:39 | -6.3 | NT | Up | 37.2 | 215.0 | Up | 03:06:39 - 03:36:39 | -2345 |
| Ellensburg | 03:20:45 | -2.7 | CT | Up | 31.0 | 211.0 | Up | 03:05:45 - 03:35:45 | -2349 |
| Cedarville | 03:21:19 | -5.1 | CT | Up | 35.4 | 213.5 | Up | 03:06:19 - 03:36:19 | -2349 |
| Yakima | 03:20:44 | -2.8 | CT | Up | 31.3 | 211.1 | Up | 03:05:44 - 03:35:44 | -2350 |
| Portola | 03:21:31 | -5.6 | CT | Up | 37.0 | 213.9 | Up | 03:06:31 - 03:36:31 | -2382 |
| Maupin | 03:20:51 | -3.0 | CT | Up | 32.7 | 211.1 | Up | 03:05:51 - 03:35:51 | -2384 |
| The Dalles | 03:20:50 | -2.8 | CT | Up | 32.4 | 210.8 | Up | 03:05:50 - 03:35:50 | -2389 |
| Bend | 03:20:58 | -3.3 | CT | Up | 33.8 | 211.2 | Up | 03:05:58 - 03:35:58 | -2403 |
| Gimple | 03:21:28 | -5.2 | CT | Up | 36.9 | 213.3 | Up | 03:06:28 - 03:36:28 | -2405 |
| Greenville | 03:21:27 | -5.1 | CT | Up | 36.9 | 213.2 | Up | 03:06:27 - 03:36:27 | -2411 |
| Oregon Observatory | 03:21:00 | -3.3 | CT | Up | 34.0 | 211.1 | Up | 03:06:00 - 03:36:00 | -2412 |
| Quincy | 03:21:29 | -5.2 | CT | Up | 37.1 | 213.3 | Up | 03:06:29 - 03:36:29 | -2412 |
| Sisters | 03:20:56 | -3.0 | CT | Up | 33.7 | 210.8 | Up | 03:05:56 - 03:35:56 | -2418 |
| Fall River/Burney | 03:21:19 | -4.4 | CT | Up | 36.3 | 212.3 | Up | 03:06:19 - 03:36:19 | -2431 |
| Klamath Falls | 03:21:11 | -3.7 | CT | Up | 35.5 | 211.4 | Up | 03:06:11 - 03:36:11 | -2445 |
| Chiloquin | 03:21:10 | -3.5 | CT | Up | 35.2 | 211.2 | Up | 03:06:10 - 03:36:10 | -2447 |
| Victoria | 03:20:23 | -0.3 | Sun up | Up | 30.6 | 207.4 | Up | 03:05:23 - 03:35:23 | -2511 |
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 559800, (2026/08/18 03:38UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 25.56 37 27Bet Lib 15:17:00.3 -09:22:59 2.6 2.28 21 PPM 198488 15:21:07.5 -05:49:30 5.4 1.44 23 PPM 198498 15:21:32.5 -06:49:37 7.6 0.75 23 PPM 198444 15:18:30.5 -07:25:11 9.2 0.28 22 559800 15:18:49.4 -07:09:01 14.1 22 Positions are for J2000
Event circumstances last updated at 2023/12/23 04:20:28 UT
Marc W. Buie, Southwest Research Institute