Event between (40314) 99KR16 and star GA0860:05481571 with event index number of 2309626
Geocentric closest approach at 2028/02/23 12:26:49 UTC
J2000 position of star is 17:19:16.9 -03:12:53
Equinox of date position of star is 17:20:34.0 -03:14:18
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 56 degrees from the moon.
Moon is 3% illuminated.
Apparent brightness V=21.1
[RECON map]
Object is 34.0 AU from the Sun
and 34.2 AU from the Earth.
Apparent velocity is 17.9
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 111 seconds.
The 1-sigma cross-track error in the shadow position is
1486 km.
The sky-plane scale is
24799.9 km/arcsec.
The object has an absolute magnitude Hv=5.6
Diameter=436.5 km assuming a 5% albedo -- 25.2 sec chord
Diameter=178.2 km assuming a 30% albedo -- 10.3 sec chord
Dynamical classification is SCATNEAR
Star training set for 40314, (2028/02/23 12:24UT) Object RA Dec mag sep mel Antares 16:31:08.3 -26:29:31 0.9 26.11 64 60Bet Oph 17:44:51.9 +04:33:27 2.8 9.85 53 PPM 180059 17:27:25.6 -01:40:27 6.4 2.29 55 PPM 200547 17:20:18.6 -02:50:18 7.0 0.42 57 PPM 200562 17:21:38.5 -03:18:30 9.5 0.23 56 40314 17:20:45.5 -03:14:31 16.6 56 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 15.1 km
RECON observability=1.0 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) |
| Victoria | 12:27:18 | -27.0 | Dark | Down | 26.0 | 130.2 | Low | 12:17:35 - 12:37:01 | 10352 |
| Kamloops | 12:27:34 | -24.5 | Dark | Down | 26.0 | 134.0 | Low | 12:17:51 - 12:37:17 | 10314 |
| Peachland | 12:27:32 | -24.4 | Dark | Down | 26.9 | 134.2 | Low | 12:17:49 - 12:37:15 | 10275 |
| Kelowna | 12:27:34 | -24.1 | Dark | Down | 27.0 | 134.6 | Low | 12:17:51 - 12:37:17 | 10269 |
| Summerland | 12:27:33 | -24.3 | Dark | Down | 27.1 | 134.3 | Low | 12:17:50 - 12:37:16 | 10268 |
| Penticton | 12:27:32 | -24.3 | Dark | Down | 27.2 | 134.4 | Low | 12:17:49 - 12:37:15 | 10263 |
| Oliver | 12:27:29 | -24.4 | Dark | Down | 27.4 | 134.2 | Low | 12:17:46 - 12:37:12 | 10255 |
| Anarchist Mountain Observatory | 12:27:32 | -24.3 | Dark | Down | 27.6 | 134.4 | Low | 12:17:49 - 12:37:15 | 10245 |
| Manson/Chelan | 12:27:22 | -25.1 | Dark | Down | 28.0 | 133.1 | Low | 12:17:39 - 12:37:05 | 10239 |
| Okanogan | 12:27:29 | -24.6 | Dark | Down | 28.0 | 133.9 | Low | 12:17:46 - 12:37:12 | 10235 |
| Brewster | 12:27:24 | -24.8 | Dark | Down | 28.1 | 133.6 | Low | 12:17:41 - 12:37:07 | 10233 |
| Wenatchee | 12:27:20 | -25.3 | Dark | Down | 28.3 | 132.7 | Low | 12:17:37 - 12:37:03 | 10232 |
| Ellensburg | 12:27:16 | -25.6 | Dark | Down | 28.4 | 132.4 | Low | 12:17:33 - 12:36:59 | 10227 |
| Yakima | 12:27:16 | -25.7 | Dark | Down | 28.7 | 132.2 | Low | 12:17:33 - 12:36:59 | 10216 |
| The Dalles | 12:27:08 | -26.3 | Dark | Down | 29.0 | 131.1 | Low | 12:17:25 - 12:36:51 | 10206 |
| Toppenish/White Swan | 12:27:13 | -25.6 | Dark | Down | 28.9 | 132.2 | Low | 12:17:30 - 12:36:56 | 10204 |
| Maupin | 12:27:05 | -26.4 | Dark | Down | 29.3 | 131.0 | Low | 12:17:22 - 12:36:48 | 10190 |
| Sisters | 12:27:02 | -26.9 | Dark | Down | 29.6 | 130.2 | Low | 12:17:19 - 12:36:45 | 10179 |
| Bend | 12:27:00 | -26.8 | Dark | Down | 29.9 | 130.3 | Low | 12:17:17 - 12:36:43 | 10163 |
| Oregon Observatory | 12:26:58 | -26.9 | Dark | Down | 30.0 | 130.1 | Low | 12:17:15 - 12:36:41 | 10161 |
| PNWRO | 12:27:16 | -24.7 | Dark | Down | 29.9 | 133.6 | Low | 12:17:33 - 12:36:59 | 10146 |
| Chiloquin | 12:26:51 | -27.5 | Dark | Down | 30.5 | 129.1 | Up | 12:17:08 - 12:36:34 | 10130 |
| Klamath Falls | 12:26:52 | -27.6 | Dark | Down | 30.8 | 129.0 | Up | 12:17:09 - 12:36:35 | 10116 |
| Fall River/Burney | 12:26:46 | -27.5 | Dark | Down | 31.8 | 128.8 | Up | 12:17:03 - 12:36:29 | 10060 |
| Cedarville | 12:26:51 | -26.5 | Dark | Down | 32.2 | 130.2 | Up | 12:17:08 - 12:36:34 | 10037 |
| Greenville | 12:26:43 | -27.4 | Dark | Down | 32.6 | 128.8 | Up | 12:17:00 - 12:36:26 | 10010 |
| Gimple | 12:26:43 | -27.3 | Dark | Down | 32.6 | 128.8 | Up | 12:17:00 - 12:36:26 | 10007 |
| Quincy | 12:26:41 | -27.4 | Dark | Down | 32.7 | 128.6 | Up | 12:16:58 - 12:36:24 | 10002 |
| Portola | 12:26:42 | -27.1 | Dark | Down | 33.1 | 129.0 | Up | 12:16:59 - 12:36:25 | 9981 |
| Reno | 12:26:46 | -26.6 | Dark | Down | 33.6 | 129.5 | Up | 12:17:03 - 12:36:29 | 9947 |
| Carson City | 12:26:43 | -26.7 | Dark | Down | 33.9 | 129.4 | Up | 12:17:00 - 12:36:26 | 9932 |
| Gardnerville | 12:26:41 | -26.7 | Dark | Down | 34.1 | 129.3 | Up | 12:16:58 - 12:36:24 | 9920 |
| Yerington | 12:26:43 | -26.2 | Dark | Down | 34.4 | 129.9 | Up | 12:17:00 - 12:36:26 | 9901 |
| Sleaford | 12:28:20 | -15.3 | AT | Down | 30.6 | 149.8 | Up | 12:18:37 - 12:38:03 | 9891 |
| Hawthorne | 12:26:41 | -25.9 | Dark | Down | 35.0 | 130.1 | Up | 12:16:58 - 12:36:24 | 9862 |
| Lee Vining | 12:26:37 | -26.4 | Dark | Down | 35.0 | 129.3 | Up | 12:16:54 - 12:36:20 | 9856 |
| Bishop | 12:26:37 | -25.9 | Dark | Down | 35.9 | 129.7 | Up | 12:16:54 - 12:36:20 | 9802 |
| Beatty | 12:26:42 | -24.6 | Dark | Down | 37.2 | 131.1 | Up | 12:16:59 - 12:36:25 | 9718 |
| Wildwood | 12:26:22 | -26.5 | Dark | Down | 37.7 | 127.6 | Up | 12:16:39 - 12:36:05 | 9655 |
| Idyllwild | 12:26:28 | -24.9 | Dark | Down | 39.2 | 129.2 | Up | 12:16:45 - 12:36:11 | 9563 |
| Laughlin/Bullhead City | 12:26:42 | -23.0 | Dark | Down | 39.6 | 132.3 | Up | 12:16:59 - 12:36:25 | 9548 |
| Patrick | 12:26:43 | -22.4 | Dark | Down | 39.9 | 133.2 | Up | 12:17:00 - 12:36:26 | 9532 |
| Lake Havasu City | 12:26:39 | -22.8 | Dark | Down | 40.2 | 132.1 | Up | 12:16:56 - 12:36:22 | 9503 |
| Calipatria | 12:26:29 | -24.0 | Dark | Down | 40.4 | 130.0 | Up | 12:16:46 - 12:36:12 | 9482 |
| Yuma | 12:26:29 | -23.2 | Dark | Down | 41.2 | 130.6 | Up | 12:16:46 - 12:36:12 | 9422 |
| Dunrhomin | 12:27:38 | -15.2 | AT | Down | 40.8 | 145.9 | Up | 12:17:55 - 12:37:21 | 9401 |
| CU-SBO | 12:27:36 | -15.3 | AT | Down | 41.0 | 145.7 | Up | 12:17:53 - 12:37:19 | 9394 |
| Nikitin | 12:27:36 | -15.2 | AT | Down | 41.0 | 145.8 | Up | 12:17:53 - 12:37:19 | 9394 |
| George/Scottsdale | 12:26:46 | -20.8 | Dark | Down | 42.3 | 134.3 | Up | 12:17:03 - 12:36:29 | 9359 |
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 40314, (2028/02/23 12:24UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 26.11 64 60Bet Oph 17:43:28.3 +04:34:06 2.8 9.85 53 PPM 180059 17:25:58.0 -01:39:05 6.4 2.29 55 PPM 200547 17:18:50.2 -02:48:39 7.0 0.42 57 PPM 200562 17:20:09.8 -03:16:54 9.5 0.23 56 40314 17:19:16.9 -03:12:53 16.6 56 Positions are for J2000
Event circumstances last updated at 2024/06/23 21:28:12 UT
Marc W. Buie, Southwest Research Institute