Event between (576162) 12GT41 and star GA0800:20226153 with event index number of 2523328
Geocentric closest approach at 2027/08/21 09:14:09 UTC
J2000 position of star is 19:42:02.8 -08:25:22
Equinox of date position of star is 19:43:17.2 -08:22:03
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 77 degrees from the moon.
Moon is 85% illuminated.
TNO apparent brightness V=22.3
[RECON map]
TNO is 18.5 AU from the Sun
and 17.6 AU from the Earth.
The TNO is moving 19.3
km/sec on the sky relative to the star, or,
5.4 arcsec/hr.
The 1-sigma error in the time of the event is 183 seconds.
The 1-sigma cross-track error in the shadow position is
2208 km.
The sky-plane scale is
12772.6 km/arcsec.
The TNO has an absolute magnitude Hv=9.5
Diameter=73.8 km assuming a 5% albedo -- 3.9 sec chord
Diameter=30.1 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 576162, (2027/08/21 09:16UT) Object RA Dec mag sep mel Antares 16:31:06.4 -26:29:27 0.9 49.00 124 Tarazed 19:47:34.4 +10:40:57 2.7 19.06 73 PPM 203194 19:43:33.3 -09:07:39 6.4 0.77 77 PPM 203189 19:43:07.5 -08:33:46 8.5 0.23 77 PPM 203196 19:43:34.0 -08:29:37 9.5 0.14 77 576162 19:43:32.7 -08:21:21 16.9 77 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
4.9 sigma about the mid-time.
The median site spacing is 42.1 km
RECON observability=0.6 and success probability=18.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 09:09:29 | -25.6 | Dark | Up | 16.4 | 233.2 | Really Low | 08:54:29 - 09:24:29 | 938 |
| Victoria | 09:09:32 | -28.2 | Dark | Up | 19.2 | 231.0 | Really Low | 08:54:32 - 09:24:32 | 845 |
| Kelowna | 09:09:26 | -26.2 | Dark | Up | 16.4 | 234.2 | Really Low | 08:54:26 - 09:24:26 | 839 |
| Peachland | 09:09:26 | -26.4 | Dark | Up | 16.6 | 233.9 | Really Low | 08:54:26 - 09:24:26 | 838 |
| Summerland | 09:09:26 | -26.5 | Dark | Up | 16.6 | 234.1 | Really Low | 08:54:26 - 09:24:26 | 822 |
| Penticton | 09:09:26 | -26.5 | Dark | Up | 16.6 | 234.2 | Really Low | 08:54:26 - 09:24:26 | 813 |
| Oliver | 09:09:26 | -26.9 | Dark | Up | 16.8 | 234.3 | Really Low | 08:54:26 - 09:24:26 | 782 |
| Anarchist Mountain Observatory | 09:09:25 | -27.0 | Dark | Up | 16.8 | 234.5 | Really Low | 08:54:25 - 09:24:25 | 760 |
| Okanogan | 09:09:25 | -27.7 | Dark | Up | 17.3 | 234.4 | Really Low | 08:54:25 - 09:24:25 | 709 |
| Brewster | 09:09:25 | -28.0 | Dark | Up | 17.6 | 234.3 | Really Low | 08:54:25 - 09:24:25 | 691 |
| Manson/Chelan | 09:09:25 | -28.2 | Dark | Up | 17.9 | 234.1 | Really Low | 08:54:25 - 09:24:25 | 684 |
| Sleaford | 09:09:11 | -20.6 | Dark | Up | 7.9 | 245.2 | Really Low | 08:54:11 - 09:24:11 | 683 |
| Wenatchee | 09:09:25 | -28.7 | Dark | Up | 18.3 | 234.0 | Really Low | 08:54:25 - 09:24:25 | 647 |
| Ellensburg | 09:09:25 | -29.2 | Dark | Up | 18.6 | 234.0 | Really Low | 08:54:25 - 09:24:25 | 617 |
| Yakima | 09:09:25 | -29.6 | Dark | Up | 18.9 | 234.1 | Really Low | 08:54:25 - 09:24:25 | 581 |
| Toppenish/White Swan | 09:09:24 | -29.7 | Dark | Up | 18.9 | 234.3 | Really Low | 08:54:24 - 09:24:24 | 556 |
| The Dalles | 09:09:25 | -30.6 | Dark | Up | 19.8 | 233.8 | Really Low | 08:54:25 - 09:24:25 | 511 |
| PNWRO | 09:09:21 | -29.7 | Dark | Up | 18.3 | 235.6 | Really Low | 08:54:21 - 09:24:21 | 473 |
| Maupin | 09:09:24 | -31.0 | Dark | Up | 20.0 | 234.0 | Low | 08:54:24 - 09:24:24 | 470 |
| Sisters | 09:09:25 | -32.0 | Dark | Up | 20.8 | 233.9 | Low | 08:54:25 - 09:24:25 | 406 |
| Bend | 09:09:24 | -32.1 | Dark | Up | 20.8 | 234.1 | Low | 08:54:24 - 09:24:24 | 375 |
| Oregon Observatory | 09:09:24 | -32.3 | Dark | Up | 21.0 | 234.1 | Low | 08:54:24 - 09:24:24 | 364 |
| Chiloquin | 09:09:24 | -33.7 | Dark | Up | 22.0 | 234.2 | Low | 08:54:24 - 09:24:24 | 257 |
| Klamath Falls | 09:09:24 | -34.0 | Dark | Up | 22.2 | 234.3 | Low | 08:54:24 - 09:24:24 | 223 |
| Cedarville | 09:09:20 | -34.3 | Dark | Up | 21.6 | 235.9 | Low | 08:54:20 - 09:24:20 | 101 |
| Fall River/Burney | 09:09:23 | -35.0 | Dark | Up | 22.6 | 235.0 | Low | 08:54:23 - 09:24:23 | 99 |
| Greenville | 09:09:21 | -35.8 | Dark | Up | 22.8 | 235.7 | Low | 08:54:21 - 09:24:21 | -3 |
| Gimple | 09:09:21 | -35.7 | Dark | Up | 22.8 | 235.8 | Low | 08:54:21 - 09:24:21 | -6 |
| Quincy | 09:09:21 | -36.0 | Dark | Up | 23.0 | 235.8 | Low | 08:54:21 - 09:24:21 | -22 |
| Portola | 09:09:20 | -36.0 | Dark | Up | 22.7 | 236.2 | Low | 08:54:20 - 09:24:20 | -51 |
| Reno | 09:09:19 | -36.0 | Dark | Up | 22.5 | 236.9 | Low | 08:54:19 - 09:24:19 | -100 |
| Carson City | 09:09:18 | -36.4 | Dark | Up | 22.6 | 237.0 | Low | 08:54:18 - 09:24:18 | -135 |
| Gardnerville | 09:09:18 | -36.6 | Dark | Up | 22.7 | 237.1 | Low | 08:54:18 - 09:24:18 | -160 |
| Yerington | 09:09:17 | -36.4 | Dark | Up | 22.3 | 237.6 | Low | 08:54:17 - 09:24:17 | -177 |
| Hawthorne | 09:09:16 | -36.7 | Dark | Up | 22.2 | 238.1 | Low | 08:54:16 - 09:24:16 | -241 |
| Lee Vining | 09:09:17 | -37.3 | Dark | Up | 22.9 | 238.0 | Low | 08:54:17 - 09:24:17 | -277 |
| Bishop | 09:09:15 | -37.7 | Dark | Up | 22.7 | 238.7 | Low | 08:54:15 - 09:24:15 | -362 |
| Beatty | 09:09:12 | -37.6 | Dark | Up | 21.8 | 240.2 | Low | 08:54:12 - 09:24:12 | -467 |
| Dunrhomin | 09:08:54 | -30.1 | Dark | Up | 12.3 | 247.7 | Really Low | 08:53:54 - 09:23:54 | -502 |
| CU-SBO | 09:08:54 | -30.4 | Dark | Up | 12.4 | 247.6 | Really Low | 08:53:54 - 09:23:54 | -524 |
| Wildwood | 09:09:15 | -40.7 | Dark | Up | 24.5 | 239.8 | Low | 08:54:15 - 09:24:15 | -675 |
| Laughlin/Bullhead City | 09:09:07 | -38.4 | Dark | Up | 21.1 | 242.4 | Low | 08:54:07 - 09:24:07 | -717 |
| Patrick | 09:09:06 | -37.9 | Dark | Up | 20.5 | 242.8 | Low | 08:54:06 - 09:24:06 | -717 |
| Idyllwild | 09:09:11 | -40.4 | Dark | Up | 23.3 | 241.3 | Low | 08:54:11 - 09:24:11 | -781 |
| Lake Havasu City | 09:09:07 | -38.9 | Dark | Up | 21.2 | 242.8 | Low | 08:54:07 - 09:24:07 | -793 |
| Calipatria | 09:09:09 | -40.5 | Dark | Up | 22.7 | 242.4 | Low | 08:54:09 - 09:24:09 | -887 |
| George/Scottsdale | 09:09:02 | -38.5 | Dark | Up | 19.8 | 244.7 | Really Low | 08:54:02 - 09:24:02 | -958 |
| Yuma | 09:09:07 | -40.6 | Dark | Up | 22.3 | 243.2 | Low | 08:54:07 - 09:24:07 | -963 |
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, (2027/08/21 09:16UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 49.00 124 Tarazed 19:46:15.6 +10:36:48 2.7 19.06 73 PPM 203194 19:42:03.0 -09:11:39 6.4 0.77 77 PPM 203189 19:41:37.4 -08:37:45 8.5 0.23 77 PPM 203196 19:42:04.0 -08:33:37 9.5 0.14 77 576162 19:42:02.8 -08:25:22 16.9 77 Positions are for J2000
Event circumstances last updated at 2022/11/23 02:41:46 UT
Marc W. Buie, Southwest Research Institute