Event between (471931) 13PH44 and star GA0760:00333230 with event index number of 2457008
Geocentric closest approach at 2028/08/26 11:25:31 UTC
J2000 position of star is 04:12:27.2 -12:06:20
Equinox of date position of star is 04:13:34.3 -12:02:46
Stellar brightness G=14.2,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 143 degrees from the moon.
Moon is 44% illuminated.
Apparent brightness V=22.2
[RECON map]
Object is 18.0 AU from the Sun
and 17.9 AU from the Earth.
Apparent velocity is 17.2
km/sec on the sky relative to the star, or,
4.8 arcsec/hr.
The 1-sigma error in the time of the event is 75 seconds.
The 1-sigma cross-track error in the shadow position is
1870 km.
The sky-plane scale is
12977.3 km/arcsec.
The object has an absolute magnitude Hv=9.4
Diameter=80.5 km assuming a 5% albedo -- 4.7 sec chord
Diameter=32.9 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 471931, (2028/08/26 11:26UT) Object RA Dec mag sep mel Rigel 05:15:55.0 -08:10:15 0.1 15.76 140 67Bet Eri 05:09:15.6 -05:03:05 2.8 15.38 143 39 Eri 04:15:45.6 -10:11:13 4.2 1.91 145 PPM 214015 04:14:43.8 -12:13:28 8.1 0.30 143 PPM 213994 04:13:47.7 -11:51:20 9.8 0.18 143 471931 04:13:48.0 -12:02:02 14.2 143 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 20.6 km
RECON observability=0.8 and success probability=5.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 11:19:55 | -7.5 | NT | Down | 22.6 | 154.7 | Low | 11:13:09 - 11:26:40 | -2331 |
| Dunrhomin | 11:20:24 | -12.1 | AT | Down | 33.5 | 152.8 | Up | 11:13:39 - 11:27:10 | -2925 |
| Nikitin | 11:20:25 | -12.2 | AT | Down | 33.6 | 152.7 | Up | 11:13:40 - 11:27:11 | -2936 |
| CU-SBO | 11:20:25 | -12.3 | AT | Down | 33.7 | 152.6 | Up | 11:13:39 - 11:27:10 | -2946 |
| Kamloops | 11:19:41 | -15.8 | AT | Down | 18.9 | 140.1 | Really Low | 11:12:55 - 11:26:26 | -3241 |
| Kelowna | 11:19:43 | -15.8 | AT | Down | 19.9 | 140.8 | Really Low | 11:12:58 - 11:26:29 | -3250 |
| Peachland | 11:19:43 | -16.1 | AT | Down | 19.9 | 140.5 | Really Low | 11:12:58 - 11:26:29 | -3275 |
| Penticton | 11:19:44 | -16.1 | AT | Down | 20.1 | 140.7 | Low | 11:12:59 - 11:26:30 | -3279 |
| Summerland | 11:19:44 | -16.1 | AT | Down | 20.0 | 140.6 | Low | 11:12:58 - 11:26:29 | -3280 |
| Oliver | 11:19:44 | -16.3 | AT | Down | 20.4 | 140.6 | Low | 11:12:59 - 11:26:30 | -3304 |
| Anarchist Mountain Observatory | 11:19:45 | -16.3 | AT | Down | 20.6 | 140.7 | Low | 11:13:00 - 11:26:31 | -3305 |
| Okanogan | 11:19:46 | -16.8 | AT | Down | 21.0 | 140.4 | Low | 11:13:01 - 11:26:32 | -3363 |
| Brewster | 11:19:46 | -17.1 | AT | Down | 21.1 | 140.1 | Low | 11:13:01 - 11:26:32 | -3394 |
| Manson/Chelan | 11:19:45 | -17.4 | AT | Down | 21.1 | 139.7 | Low | 11:13:00 - 11:26:31 | -3430 |
| Wenatchee | 11:19:46 | -17.8 | AT | Down | 21.4 | 139.4 | Low | 11:13:01 - 11:26:32 | -3474 |
| PNWRO | 11:19:53 | -17.9 | AT | Down | 23.1 | 140.4 | Low | 11:13:07 - 11:26:38 | -3489 |
| Ellensburg | 11:19:47 | -18.2 | Dark | Down | 21.6 | 139.1 | Low | 11:13:01 - 11:26:32 | -3516 |
| Yakima | 11:19:48 | -18.4 | Dark | Down | 21.9 | 139.0 | Low | 11:13:03 - 11:26:34 | -3547 |
| Toppenish/White Swan | 11:19:50 | -18.5 | Dark | Down | 22.2 | 139.1 | Low | 11:13:05 - 11:26:36 | -3552 |
| Victoria | 11:19:42 | -18.7 | Dark | Down | 19.2 | 136.8 | Really Low | 11:12:56 - 11:26:27 | -3565 |
| The Dalles | 11:19:50 | -19.4 | Dark | Down | 22.4 | 138.2 | Low | 11:13:05 - 11:26:36 | -3655 |
| Maupin | 11:19:51 | -19.6 | Dark | Down | 22.8 | 138.1 | Low | 11:13:05 - 11:26:36 | -3679 |
| Sisters | 11:19:52 | -20.4 | Dark | Down | 23.2 | 137.4 | Low | 11:13:06 - 11:26:37 | -3773 |
| Bend | 11:19:52 | -20.4 | Dark | Down | 23.5 | 137.6 | Low | 11:13:07 - 11:26:38 | -3774 |
| Oregon Observatory | 11:19:55 | -20.6 | Dark | Down | 23.6 | 137.4 | Low | 11:13:09 - 11:26:40 | -3795 |
| George/Scottsdale | 11:20:35 | -19.7 | Dark | Down | 36.2 | 143.3 | Up | 11:13:50 - 11:27:21 | -3811 |
| Patrick | 11:20:26 | -20.4 | Dark | Down | 33.8 | 141.9 | Up | 11:13:41 - 11:27:12 | -3858 |
| Cedarville | 11:20:00 | -21.3 | Dark | Down | 25.9 | 137.9 | Low | 11:13:15 - 11:26:46 | -3884 |
| Chiloquin | 11:19:57 | -21.6 | Dark | Down | 24.3 | 136.7 | Low | 11:13:11 - 11:26:42 | -3916 |
| Laughlin/Bullhead City | 11:20:26 | -21.0 | Dark | Down | 33.7 | 141.1 | Up | 11:13:41 - 11:27:12 | -3926 |
| Klamath Falls | 11:19:57 | -21.8 | Dark | Down | 24.6 | 136.6 | Low | 11:13:12 - 11:26:43 | -3935 |
| Lake Havasu City | 11:20:30 | -21.2 | Dark | Down | 34.3 | 141.0 | Up | 11:13:44 - 11:27:15 | -3950 |
| Beatty | 11:20:18 | -21.7 | Dark | Down | 31.2 | 139.6 | Up | 11:13:33 - 11:27:04 | -3971 |
| Hawthorne | 11:20:12 | -22.0 | Dark | Down | 29.0 | 138.4 | Low | 11:13:26 - 11:26:57 | -3991 |
| Yerington | 11:20:08 | -22.1 | Dark | Down | 28.4 | 138.0 | Low | 11:13:23 - 11:26:54 | -3995 |
| Fall River/Burney | 11:19:59 | -22.3 | Dark | Down | 25.7 | 136.6 | Low | 11:13:14 - 11:26:45 | -3997 |
| Reno | 11:20:07 | -22.2 | Dark | Down | 27.6 | 137.6 | Low | 11:13:22 - 11:26:53 | -4001 |
| Carson City | 11:20:07 | -22.4 | Dark | Down | 27.9 | 137.5 | Low | 11:13:22 - 11:26:53 | -4024 |
| Portola | 11:20:04 | -22.5 | Dark | Down | 27.1 | 137.1 | Low | 11:13:19 - 11:26:50 | -4025 |
| Gimple | 11:20:05 | -22.5 | Dark | Down | 26.6 | 136.8 | Low | 11:13:19 - 11:26:50 | -4027 |
| Greenville | 11:20:05 | -22.6 | Dark | Down | 26.6 | 136.8 | Low | 11:13:19 - 11:26:50 | -4033 |
| Gardnerville | 11:20:09 | -22.5 | Dark | Down | 28.1 | 137.5 | Low | 11:13:23 - 11:26:54 | -4038 |
| Quincy | 11:20:04 | -22.7 | Dark | Down | 26.7 | 136.7 | Low | 11:13:18 - 11:26:49 | -4047 |
| Bishop | 11:20:15 | -22.5 | Dark | Down | 30.0 | 138.2 | Low | 11:13:30 - 11:27:01 | -4055 |
| Lee Vining | 11:20:11 | -22.7 | Dark | Down | 29.1 | 137.7 | Low | 11:13:26 - 11:26:57 | -4064 |
| Yuma | 11:20:35 | -22.3 | Dark | Down | 35.6 | 140.0 | Up | 11:13:50 - 11:27:21 | -4087 |
| Calipatria | 11:20:32 | -22.7 | Dark | Down | 34.8 | 139.2 | Up | 11:13:47 - 11:27:18 | -4127 |
| Idyllwild | 11:20:26 | -23.3 | Dark | Down | 33.6 | 138.3 | Up | 11:13:41 - 11:27:12 | -4176 |
| Wildwood | 11:20:25 | -24.4 | Dark | Down | 32.3 | 136.7 | Up | 11:13:39 - 11:27:10 | -4290 |
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 471931, (2028/08/26 11:26UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 15.76 140 67Bet Eri 05:07:50.8 -05:05:13 2.8 15.38 143 39 Eri 04:14:23.7 -10:15:27 4.2 1.91 145 PPM 214015 04:13:23.1 -12:17:44 8.1 0.30 143 PPM 213994 04:12:26.8 -11:55:39 9.8 0.18 143 471931 04:12:27.2 -12:06:20 14.2 143 Positions are for J2000
Event circumstances last updated at 2023/10/28 00:51:48 UT
Marc W. Buie, Southwest Research Institute