Event between (471931) 13PH44 and star GA0740:00271105 with event index number of 2456986
Geocentric closest approach at 2028/01/12 03:00:25 UTC
J2000 position of star is 03:36:48.4 -14:23:09
Equinox of date position of star is 03:37:55.1 -14:18:31
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 68 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=22.1
[RECON map]
Object is 17.8 AU from the Sun
and 17.4 AU from the Earth.
Apparent velocity is 14.6
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 69 seconds.
The 1-sigma cross-track error in the shadow position is
1309 km.
The sky-plane scale is
12633.3 km/arcsec.
The object has an absolute magnitude Hv=9.4
Diameter=80.5 km assuming a 5% albedo -- 5.6 sec chord
Diameter=32.9 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is CENTAURR
Star training set for 471931, (2028/01/12 02:59UT) Object RA Dec mag sep mel Rigel 05:15:53.2 -08:10:17 0.1 24.73 46 Menkar 03:03:44.9 +04:11:53 2.5 20.36 67 PPM 213229 03:41:29.3 -15:08:15 6.4 1.17 68 PPM 213151 03:38:06.3 -14:00:34 8.3 0.29 68 PPM 213149 03:38:01.9 -14:26:12 9.7 0.14 68 471931 03:38:06.8 -14:17:42 16.4 68 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 12.3 km
RECON observability=1.0 and success probability=34.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 03:05:29 | -34.3 | Dark | Up | 23.5 | 177.3 | Low | 02:59:13 - 03:11:46 | 17 |
| Dunrhomin | 03:04:57 | -35.7 | Dark | Up | 35.3 | 177.7 | Up | 02:58:41 - 03:11:14 | -415 |
| Nikitin | 03:04:56 | -35.7 | Dark | Up | 35.5 | 177.6 | Up | 02:58:40 - 03:11:13 | -425 |
| CU-SBO | 03:04:56 | -35.6 | Dark | Up | 35.6 | 177.5 | Up | 02:58:40 - 03:11:13 | -433 |
| Kelowna | 03:06:07 | -26.0 | Dark | Up | 24.2 | 163.0 | Low | 02:59:51 - 03:12:24 | -786 |
| Kamloops | 03:06:11 | -25.5 | Dark | Up | 23.3 | 162.2 | Low | 02:59:54 - 03:12:27 | -792 |
| Peachland | 03:06:08 | -25.8 | Dark | Up | 24.3 | 162.7 | Low | 02:59:51 - 03:12:24 | -807 |
| Penticton | 03:06:07 | -25.9 | Dark | Up | 24.5 | 162.9 | Low | 02:59:51 - 03:12:24 | -807 |
| Summerland | 03:06:07 | -25.9 | Dark | Up | 24.4 | 162.7 | Low | 02:59:51 - 03:12:24 | -810 |
| Anarchist Mountain Observatory | 03:06:06 | -26.0 | Dark | Up | 25.1 | 163.0 | Low | 02:59:49 - 03:12:22 | -824 |
| Oliver | 03:06:07 | -25.9 | Dark | Up | 24.9 | 162.8 | Low | 02:59:50 - 03:12:23 | -826 |
| Okanogan | 03:06:05 | -25.8 | Dark | Up | 25.6 | 162.7 | Low | 02:59:49 - 03:12:22 | -870 |
| Brewster | 03:06:06 | -25.7 | Dark | Up | 25.9 | 162.4 | Low | 02:59:49 - 03:12:22 | -896 |
| Manson/Chelan | 03:06:07 | -25.4 | Dark | Up | 26.0 | 162.0 | Low | 02:59:50 - 03:12:23 | -927 |
| PNWRO | 03:06:00 | -26.1 | Dark | Up | 28.0 | 163.0 | Low | 02:59:43 - 03:12:16 | -957 |
| Wenatchee | 03:06:06 | -25.3 | Dark | Up | 26.4 | 161.7 | Low | 02:59:50 - 03:12:23 | -962 |
| Ellensburg | 03:06:06 | -25.1 | Dark | Up | 26.7 | 161.4 | Low | 02:59:50 - 03:12:23 | -997 |
| Yakima | 03:06:06 | -25.0 | Dark | Up | 27.1 | 161.3 | Low | 02:59:49 - 03:12:22 | -1021 |
| Toppenish/White Swan | 03:06:05 | -25.1 | Dark | Up | 27.4 | 161.5 | Low | 02:59:48 - 03:12:21 | -1023 |
| Victoria | 03:06:17 | -23.4 | Dark | Up | 24.7 | 158.7 | Low | 03:00:01 - 03:12:34 | -1072 |
| The Dalles | 03:06:06 | -24.5 | Dark | Up | 27.9 | 160.5 | Low | 02:59:50 - 03:12:23 | -1113 |
| Maupin | 03:06:05 | -24.5 | Dark | Up | 28.3 | 160.6 | Low | 02:59:49 - 03:12:22 | -1130 |
| George/Scottsdale | 03:05:04 | -30.0 | Dark | Up | 41.2 | 168.9 | Up | 02:58:47 - 03:11:20 | -1198 |
| Bend | 03:06:04 | -24.2 | Dark | Up | 29.3 | 160.1 | Low | 02:59:47 - 03:12:20 | -1208 |
| Sisters | 03:06:05 | -24.1 | Dark | Up | 29.0 | 159.9 | Low | 02:59:49 - 03:12:22 | -1210 |
| Oregon Observatory | 03:06:04 | -24.1 | Dark | Up | 29.5 | 159.9 | Low | 02:59:48 - 03:12:21 | -1226 |
| Patrick | 03:05:17 | -28.6 | Dark | Up | 39.2 | 166.7 | Up | 02:59:00 - 03:11:33 | -1237 |
| Cedarville | 03:05:56 | -24.7 | Dark | Up | 32.0 | 160.8 | Up | 02:59:39 - 03:12:12 | -1287 |
| Laughlin/Bullhead City | 03:05:19 | -28.0 | Dark | Up | 39.3 | 165.8 | Up | 02:59:02 - 03:11:35 | -1299 |
| Lake Havasu City | 03:05:16 | -28.1 | Dark | Up | 40.0 | 166.0 | Up | 02:59:00 - 03:11:33 | -1322 |
| Chiloquin | 03:06:03 | -23.6 | Dark | Up | 30.6 | 159.2 | Up | 02:59:47 - 03:12:20 | -1329 |
| Beatty | 03:05:32 | -26.6 | Dark | Up | 37.2 | 163.6 | Up | 02:59:15 - 03:11:48 | -1343 |
| Klamath Falls | 03:06:02 | -23.6 | Dark | Up | 30.9 | 159.2 | Up | 02:59:46 - 03:12:19 | -1345 |
| Hawthorne | 03:05:43 | -25.4 | Dark | Up | 35.2 | 161.8 | Up | 02:59:26 - 03:11:59 | -1368 |
| Yerington | 03:05:46 | -25.0 | Dark | Up | 34.6 | 161.3 | Up | 02:59:30 - 03:12:03 | -1374 |
| Reno | 03:05:50 | -24.6 | Dark | Up | 33.9 | 160.7 | Up | 02:59:33 - 03:12:06 | -1383 |
| Fall River/Burney | 03:05:58 | -23.7 | Dark | Up | 32.1 | 159.4 | Up | 02:59:42 - 03:12:15 | -1392 |
| Carson City | 03:05:49 | -24.6 | Dark | Up | 34.3 | 160.7 | Up | 02:59:32 - 03:12:05 | -1403 |
| Portola | 03:05:53 | -24.2 | Dark | Up | 33.5 | 160.1 | Up | 02:59:36 - 03:12:09 | -1409 |
| Gimple | 03:05:55 | -23.9 | Dark | Up | 33.1 | 159.7 | Up | 02:59:38 - 03:12:11 | -1414 |
| Gardnerville | 03:05:48 | -24.6 | Dark | Up | 34.5 | 160.7 | Up | 02:59:32 - 03:12:05 | -1415 |
| Greenville | 03:05:55 | -23.9 | Dark | Up | 33.1 | 159.6 | Up | 02:59:39 - 03:12:12 | -1419 |
| Bishop | 03:05:40 | -25.4 | Dark | Up | 36.4 | 161.8 | Up | 02:59:23 - 03:11:56 | -1423 |
| Quincy | 03:05:55 | -23.9 | Dark | Up | 33.3 | 159.6 | Up | 02:59:38 - 03:12:11 | -1431 |
| Lee Vining | 03:05:43 | -24.9 | Dark | Up | 35.6 | 161.1 | Up | 02:59:27 - 03:12:00 | -1434 |
| Yuma | 03:05:12 | -27.6 | Dark | Up | 41.7 | 165.2 | Up | 02:58:55 - 03:11:28 | -1452 |
| Calipatria | 03:05:17 | -26.9 | Dark | Up | 41.1 | 164.2 | Up | 02:59:00 - 03:11:33 | -1488 |
| Idyllwild | 03:05:23 | -26.1 | Dark | Up | 40.2 | 162.9 | Up | 02:59:07 - 03:11:40 | -1532 |
| Wildwood | 03:05:31 | -24.6 | Dark | Up | 39.4 | 160.7 | Up | 02:59:15 - 03:11:48 | -1640 |
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, (2028/01/12 02:59UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 24.73 46 Menkar 03:02:16.8 +04:05:21 2.5 20.36 67 PPM 213229 03:40:11.4 -15:13:36 6.4 1.17 68 PPM 213151 03:36:47.7 -14:06:01 8.3 0.29 68 PPM 213149 03:36:43.6 -14:31:40 9.7 0.14 68 471931 03:36:48.4 -14:23:09 16.4 68 Positions are for J2000
Event circumstances last updated at 2023/10/27 02:00:21 UT
Marc W. Buie, Southwest Research Institute