Event between (523730) 14OH394 and star GA0780:21758615 with event index number of 2328877
Geocentric closest approach at 2025/08/25 03:48:44 UTC
J2000 position of star is 21:08:47.6 -11:47:37
Equinox of date position of star is 21:10:05.3 -11:41:46
Stellar brightness G=14.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 141 degrees from the moon.
Moon is 4% illuminated.
Apparent brightness V=22.1
[RECON map]
Object is 40.3 AU from the Sun
and 39.3 AU from the Earth.
Apparent velocity is 23.4
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 95 seconds.
The 1-sigma cross-track error in the shadow position is
1796 km.
The sky-plane scale is
28535.9 km/arcsec.
The object has an absolute magnitude Hv=6.0
Diameter=363.1 km assuming a 5% albedo -- 16.0 sec chord
Diameter=148.2 km assuming a 30% albedo -- 6.5 sec chord
Dynamical classification is SCATEXTD
Star training set for 523730, (2025/08/25 03:58UT) Object RA Dec mag sep mel Fomalhaut 22:59:03.6 -29:29:08 1.2 30.93 150 Tarazed 19:47:28.7 +10:40:39 2.7 30.37 121 13Nu Aqr 21:10:59.3 -11:15:59 4.5 0.47 142 PPM 238487 21:12:11.7 -11:37:25 8.0 0.50 142 PPM 238417 21:09:21.4 -11:34:59 8.7 0.23 141 523730 21:10:11.3 -11:41:19 14.9 142 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 33.2 km
RECON observability=0.3 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) |
| Kamloops | 03:49:38 | -7.7 | NT | Down | 15.6 | 132.5 | Really Low | 03:41:11 - 03:58:05 | 11101 |
| Kelowna | 03:49:40 | -8.6 | NT | Down | 16.6 | 133.2 | Really Low | 03:41:13 - 03:58:07 | 11067 |
| Peachland | 03:49:40 | -8.5 | NT | Down | 16.5 | 132.9 | Really Low | 03:41:13 - 03:58:07 | 11064 |
| Summerland | 03:49:41 | -8.6 | NT | Down | 16.7 | 132.9 | Really Low | 03:41:14 - 03:58:08 | 11058 |
| Penticton | 03:49:41 | -8.7 | NT | Down | 16.8 | 133.0 | Really Low | 03:41:14 - 03:58:08 | 11055 |
| Sleaford | 03:49:02 | -14.4 | AT | Down | 20.4 | 146.2 | Low | 03:40:35 - 03:57:29 | 11054 |
| Oliver | 03:49:42 | -8.9 | NT | Down | 17.0 | 132.9 | Really Low | 03:41:15 - 03:58:09 | 11041 |
| Anarchist Mountain Observatory | 03:49:42 | -9.1 | NT | Down | 17.2 | 133.1 | Really Low | 03:41:15 - 03:58:09 | 11034 |
| Victoria | 03:49:52 | -6.9 | NT | Down | 15.6 | 129.4 | Really Low | 03:41:25 - 03:58:19 | 11029 |
| Okanogan | 03:49:43 | -9.3 | NT | Down | 17.6 | 132.7 | Really Low | 03:41:16 - 03:58:10 | 11009 |
| Brewster | 03:49:45 | -9.3 | NT | Down | 17.6 | 132.5 | Really Low | 03:41:18 - 03:58:12 | 10998 |
| Manson/Chelan | 03:49:47 | -9.2 | NT | Down | 17.6 | 132.1 | Really Low | 03:41:20 - 03:58:14 | 10992 |
| Wenatchee | 03:49:49 | -9.3 | NT | Down | 17.8 | 131.9 | Really Low | 03:41:22 - 03:58:16 | 10972 |
| Ellensburg | 03:49:50 | -9.3 | NT | Down | 18.0 | 131.6 | Really Low | 03:41:23 - 03:58:17 | 10956 |
| Yakima | 03:49:52 | -9.5 | NT | Down | 18.3 | 131.5 | Really Low | 03:41:25 - 03:58:19 | 10938 |
| Toppenish/White Swan | 03:49:52 | -9.7 | NT | Down | 18.5 | 131.6 | Really Low | 03:41:25 - 03:58:19 | 10928 |
| PNWRO | 03:49:49 | -10.8 | NT | Down | 19.5 | 132.8 | Really Low | 03:41:22 - 03:58:16 | 10904 |
| The Dalles | 03:49:57 | -9.6 | NT | Down | 18.6 | 130.7 | Really Low | 03:41:30 - 03:58:24 | 10896 |
| Maupin | 03:49:58 | -9.8 | NT | Down | 18.9 | 130.7 | Really Low | 03:41:31 - 03:58:25 | 10876 |
| Sisters | 03:50:02 | -9.9 | NT | Down | 19.3 | 130.0 | Really Low | 03:41:35 - 03:58:29 | 10837 |
| Bend | 03:50:01 | -10.2 | NT | Down | 19.5 | 130.2 | Really Low | 03:41:34 - 03:58:28 | 10825 |
| Oregon Observatory | 03:50:02 | -10.2 | NT | Down | 19.6 | 130.0 | Really Low | 03:41:35 - 03:58:29 | 10817 |
| Chiloquin | 03:50:07 | -10.5 | NT | Down | 20.2 | 129.3 | Low | 03:41:40 - 03:58:34 | 10754 |
| Klamath Falls | 03:50:08 | -10.7 | NT | Down | 20.5 | 129.3 | Low | 03:41:41 - 03:58:35 | 10736 |
| Cedarville | 03:50:06 | -12.1 | AT | Down | 21.8 | 130.5 | Low | 03:41:39 - 03:58:33 | 10693 |
| Fall River/Burney | 03:50:11 | -11.5 | NT | Down | 21.4 | 129.3 | Low | 03:41:44 - 03:58:38 | 10672 |
| Greenville | 03:50:12 | -12.2 | AT | Down | 22.3 | 129.4 | Low | 03:41:45 - 03:58:39 | 10621 |
| Gimple | 03:50:12 | -12.2 | AT | Down | 22.3 | 129.5 | Low | 03:41:45 - 03:58:39 | 10621 |
| Quincy | 03:50:14 | -12.3 | AT | Down | 22.4 | 129.3 | Low | 03:41:47 - 03:58:41 | 10610 |
| Portola | 03:50:13 | -12.6 | AT | Down | 22.8 | 129.7 | Low | 03:41:46 - 03:58:40 | 10601 |
| Reno | 03:50:11 | -13.2 | AT | Down | 23.3 | 130.2 | Low | 03:41:44 - 03:58:38 | 10583 |
| Carson City | 03:50:12 | -13.4 | AT | Down | 23.6 | 130.1 | Low | 03:41:45 - 03:58:39 | 10563 |
| Gardnerville | 03:50:13 | -13.5 | AT | Down | 23.8 | 130.0 | Low | 03:41:46 - 03:58:40 | 10549 |
| Yerington | 03:50:11 | -13.9 | AT | Down | 24.1 | 130.5 | Low | 03:41:44 - 03:58:38 | 10548 |
| Hawthorne | 03:50:12 | -14.5 | AT | Down | 24.7 | 130.8 | Low | 03:41:45 - 03:58:39 | 10518 |
| Dunrhomin | 03:49:29 | -22.3 | Dark | Down | 30.4 | 143.8 | Up | 03:41:02 - 03:57:56 | 10495 |
| Lee Vining | 03:50:14 | -14.4 | AT | Down | 24.8 | 130.2 | Low | 03:41:47 - 03:58:41 | 10489 |
| Nikitin | 03:49:30 | -22.4 | Dark | Down | 30.5 | 143.8 | Up | 03:41:03 - 03:57:57 | 10484 |
| CU-SBO | 03:49:29 | -22.4 | Dark | Down | 30.6 | 143.7 | Up | 03:41:02 - 03:57:56 | 10482 |
| Bishop | 03:50:15 | -15.2 | AT | Down | 25.6 | 130.6 | Low | 03:41:48 - 03:58:42 | 10449 |
| Beatty | 03:50:11 | -16.5 | AT | Down | 26.9 | 131.9 | Low | 03:41:44 - 03:58:38 | 10410 |
| Patrick | 03:50:06 | -19.3 | Dark | Down | 29.6 | 133.8 | Low | 03:41:39 - 03:58:33 | 10295 |
| Laughlin/Bullhead City | 03:50:10 | -18.9 | Dark | Down | 29.4 | 133.1 | Low | 03:41:43 - 03:58:37 | 10285 |
| Wildwood | 03:50:25 | -16.5 | AT | Down | 27.6 | 129.2 | Low | 03:41:58 - 03:58:52 | 10246 |
| Lake Havasu City | 03:50:11 | -19.4 | Dark | Down | 30.0 | 133.0 | Low | 03:41:44 - 03:58:38 | 10240 |
| Idyllwild | 03:50:20 | -18.0 | Dark | Down | 29.0 | 130.7 | Low | 03:41:53 - 03:58:47 | 10210 |
| George/Scottsdale | 03:50:07 | -21.6 | Dark | Down | 32.0 | 134.9 | Up | 03:41:40 - 03:58:34 | 10166 |
| Calipatria | 03:50:18 | -19.2 | Dark | Down | 30.2 | 131.4 | Up | 03:41:51 - 03:58:45 | 10159 |
| Yuma | 03:50:17 | -20.1 | Dark | Down | 31.0 | 132.0 | Up | 03:41:50 - 03:58:44 | 10123 |
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 523730, (2025/08/25 03:58UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 30.93 150 Tarazed 19:46:15.6 +10:36:48 2.7 30.37 121 13Nu Aqr 21:09:35.8 -11:22:18 4.5 0.47 142 PPM 238487 21:10:48.1 -11:43:46 8.0 0.50 142 PPM 238417 21:07:57.7 -11:41:16 8.7 0.23 141 523730 21:08:47.6 -11:47:37 14.9 141 Positions are for J2000
Event circumstances last updated at 2023/10/24 02:42:11 UT
Marc W. Buie, Southwest Research Institute