Event between (576162) 12GT41 and star GA0780:21030208 with event index number of 2523511
Geocentric closest approach at 2028/09/06 07:42:10 UTC
J2000 position of star is 20:00:13.1 -10:12:02
Equinox of date position of star is 20:01:28.4 -10:08:10
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 69 degrees from the moon.
Moon is 95% illuminated.
TNO apparent brightness V=22.4
[RECON map]
TNO is 18.9 AU from the Sun
and 18.2 AU from the Earth.
The TNO is moving 16.1
km/sec on the sky relative to the star, or,
4.4 arcsec/hr.
The 1-sigma error in the time of the event is 233 seconds.
The 1-sigma cross-track error in the shadow position is
3679 km.
The sky-plane scale is
13182.9 km/arcsec.
The TNO has an absolute magnitude Hv=9.5
Diameter=73.8 km assuming a 5% albedo -- 4.6 sec chord
Diameter=30.1 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 576162, (2028/09/06 07:42UT) Object RA Dec mag sep mel Fomalhaut 22:59:13.6 -29:28:10 1.2 45.64 44 Tarazed 19:47:37.4 +10:41:06 2.7 21.10 69 PPM 203530 20:01:20.9 -09:52:51 5.7 0.26 69 PPM 236736 19:59:08.0 -09:57:33 8.0 0.67 70 PPM 203538 20:01:56.1 -09:53:28 9.4 0.23 69 576162 20:01:47.3 -10:07:12 16.1 69 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
3.9 sigma about the mid-time.
The median site spacing is 31.5 km
RECON observability=0.9 and success probability=9.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Nikitin | 07:39:23 | 9.8 | Sun up | Down | -2.3 | 302.1 | Not Up | 07:24:23 - 07:54:23 | 8919 |
| Kamloops | 07:36:42 | -32.9 | Dark | Up | 20.1 | 222.0 | Low | 07:21:42 - 07:51:42 | 5800 |
| Victoria | 07:36:47 | -34.7 | Dark | Up | 23.0 | 219.6 | Low | 07:21:47 - 07:51:47 | 5756 |
| Peachland | 07:36:38 | -33.9 | Dark | Up | 20.5 | 222.8 | Low | 07:21:38 - 07:51:38 | 5702 |
| Kelowna | 07:36:37 | -33.8 | Dark | Up | 20.3 | 223.0 | Low | 07:21:37 - 07:51:37 | 5699 |
| Summerland | 07:36:40 | -34.0 | Dark | Up | 20.6 | 222.9 | Low | 07:21:40 - 07:51:40 | 5686 |
| Penticton | 07:36:38 | -34.1 | Dark | Up | 20.6 | 223.0 | Low | 07:21:38 - 07:51:38 | 5676 |
| Oliver | 07:36:38 | -34.4 | Dark | Up | 20.8 | 223.1 | Low | 07:21:38 - 07:51:38 | 5648 |
| Anarchist Mountain Observatory | 07:36:38 | -34.6 | Dark | Up | 20.9 | 223.3 | Low | 07:21:38 - 07:51:38 | 5626 |
| Okanogan | 07:36:38 | -35.3 | Dark | Up | 21.4 | 223.3 | Low | 07:21:38 - 07:51:38 | 5583 |
| Brewster | 07:36:38 | -35.5 | Dark | Up | 21.7 | 223.2 | Low | 07:21:38 - 07:51:38 | 5569 |
| Manson/Chelan | 07:36:38 | -35.7 | Dark | Up | 22.0 | 222.9 | Low | 07:21:38 - 07:51:38 | 5568 |
| Wenatchee | 07:36:38 | -36.1 | Dark | Up | 22.5 | 222.9 | Low | 07:21:38 - 07:51:38 | 5536 |
| Ellensburg | 07:36:40 | -36.5 | Dark | Up | 22.9 | 222.8 | Low | 07:21:40 - 07:51:40 | 5512 |
| Yakima | 07:36:42 | -36.9 | Dark | Up | 23.2 | 222.9 | Low | 07:21:42 - 07:51:42 | 5480 |
| Toppenish/White Swan | 07:36:40 | -37.2 | Dark | Up | 23.2 | 223.1 | Low | 07:21:40 - 07:51:40 | 5454 |
| The Dalles | 07:36:41 | -37.9 | Dark | Up | 24.2 | 222.6 | Low | 07:21:41 - 07:51:41 | 5425 |
| Sleaford | 07:36:12 | -31.3 | Dark | Up | 12.5 | 234.6 | Really Low | 07:21:12 - 07:51:12 | 5394 |
| Maupin | 07:36:41 | -38.3 | Dark | Up | 24.4 | 222.8 | Low | 07:21:41 - 07:51:41 | 5386 |
| PNWRO | 07:36:36 | -37.7 | Dark | Up | 22.8 | 224.6 | Low | 07:21:36 - 07:51:36 | 5359 |
| Sisters | 07:36:43 | -39.1 | Dark | Up | 25.3 | 222.6 | Low | 07:21:43 - 07:51:43 | 5335 |
| Bend | 07:36:43 | -39.4 | Dark | Up | 25.4 | 223.0 | Low | 07:21:43 - 07:51:43 | 5304 |
| Oregon Observatory | 07:36:43 | -39.5 | Dark | Up | 25.6 | 222.9 | Low | 07:21:43 - 07:51:43 | 5296 |
| Chiloquin | 07:36:45 | -40.8 | Dark | Up | 26.7 | 223.0 | Low | 07:21:45 - 07:51:45 | 5205 |
| Klamath Falls | 07:36:44 | -41.1 | Dark | Up | 26.9 | 223.1 | Low | 07:21:44 - 07:51:44 | 5172 |
| Fall River/Burney | 07:36:44 | -42.3 | Dark | Up | 27.6 | 223.9 | Low | 07:21:44 - 07:51:44 | 5055 |
| Cedarville | 07:36:39 | -42.0 | Dark | Up | 26.6 | 224.9 | Low | 07:21:39 - 07:51:39 | 5038 |
| Greenville | 07:36:42 | -43.3 | Dark | Up | 28.0 | 224.7 | Low | 07:21:42 - 07:51:42 | 4956 |
| Gimple | 07:36:44 | -43.3 | Dark | Up | 28.0 | 224.8 | Low | 07:21:44 - 07:51:44 | 4952 |
| Quincy | 07:36:43 | -43.5 | Dark | Up | 28.2 | 224.8 | Low | 07:21:43 - 07:51:43 | 4938 |
| Portola | 07:36:41 | -43.7 | Dark | Up | 28.0 | 225.2 | Low | 07:21:41 - 07:51:41 | 4905 |
| Reno | 07:36:40 | -44.0 | Dark | Up | 27.8 | 225.9 | Low | 07:21:40 - 07:51:40 | 4850 |
| Carson City | 07:36:41 | -44.4 | Dark | Up | 28.1 | 226.1 | Low | 07:21:41 - 07:51:41 | 4818 |
| Gardnerville | 07:36:40 | -44.6 | Dark | Up | 28.2 | 226.2 | Low | 07:21:40 - 07:51:40 | 4795 |
| Yerington | 07:36:39 | -44.6 | Dark | Up | 27.8 | 226.7 | Low | 07:21:39 - 07:51:39 | 4770 |
| Hawthorne | 07:36:37 | -45.1 | Dark | Up | 27.9 | 227.4 | Low | 07:21:37 - 07:51:37 | 4704 |
| Lee Vining | 07:36:39 | -45.6 | Dark | Up | 28.5 | 227.2 | Low | 07:21:39 - 07:51:39 | 4678 |
| Bishop | 07:36:38 | -46.3 | Dark | Up | 28.5 | 228.1 | Low | 07:21:38 - 07:51:38 | 4590 |
| Beatty | 07:36:35 | -46.8 | Dark | Up | 27.8 | 229.7 | Low | 07:21:35 - 07:51:35 | 4469 |
| Wildwood | 07:36:42 | -49.5 | Dark | Up | 30.8 | 229.3 | Up | 07:21:42 - 07:51:42 | 4307 |
| Dunrhomin | 07:36:04 | -42.8 | Dark | Up | 18.6 | 238.0 | Really Low | 07:21:04 - 07:51:04 | 4267 |
| CU-SBO | 07:36:04 | -43.0 | Dark | Up | 18.8 | 238.0 | Really Low | 07:21:04 - 07:51:04 | 4247 |
| Laughlin/Bullhead City | 07:36:30 | -48.6 | Dark | Up | 27.6 | 232.3 | Low | 07:21:30 - 07:51:30 | 4205 |
| Patrick | 07:36:27 | -48.4 | Dark | Up | 27.0 | 232.7 | Low | 07:21:27 - 07:51:27 | 4194 |
| Idyllwild | 07:36:36 | -50.0 | Dark | Up | 29.8 | 231.1 | Low | 07:21:36 - 07:51:36 | 4179 |
| Lake Havasu City | 07:36:29 | -49.3 | Dark | Up | 27.8 | 232.7 | Low | 07:21:29 - 07:51:29 | 4131 |
| Calipatria | 07:36:33 | -50.7 | Dark | Up | 29.4 | 232.3 | Low | 07:21:33 - 07:51:33 | 4064 |
| Yuma | 07:36:31 | -51.1 | Dark | Up | 29.1 | 233.3 | Low | 07:21:31 - 07:51:31 | 3979 |
| George/Scottsdale | 07:36:23 | -50.0 | Dark | Up | 26.6 | 235.1 | Low | 07:21:23 - 07:51:23 | 3939 |
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 576162, (2028/09/06 07:42UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 45.64 44 Tarazed 19:46:15.6 +10:36:48 2.7 21.10 69 PPM 203530 19:59:46.9 -09:57:39 5.7 0.26 69 PPM 236736 19:57:33.9 -10:02:17 8.0 0.67 70 PPM 203538 20:00:22.1 -09:58:18 9.4 0.23 69 576162 20:00:13.1 -10:12:02 16.1 69 Positions are for J2000
Event circumstances last updated at 2022/12/05 03:24:07 UT
Marc W. Buie, Southwest Research Institute