Event between 11JY31 and star GA0700:33116460 with event index number of 2121259
Geocentric closest approach at 2022/09/04 06:43:25 UTC
J2000 position of star is 19:26:25.9 -19:38:24
Equinox of date position of star is 19:27:44.0 -19:35:39
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 32 degrees from the moon.
Moon is 56% illuminated.
TNO apparent brightness V=25.2
[RECON map]
TNO is 42.3 AU from the Sun
and 41.6 AU from the Earth.
The TNO is moving 13.5
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 1011 seconds.
The 1-sigma cross-track error in the shadow position is
4387 km.
The sky-plane scale is
30190.1 km/arcsec.
The TNO has an absolute magnitude Hv=8.8
Diameter=103.8 km assuming a 5% albedo -- 7.7 sec chord
Diameter=42.4 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is CLASSICAL
Star training set for 11JY31, (2022/09/04 06:43UT) Object RA Dec mag sep mel Antares 16:30:48.1 -26:28:49 0.9 41.09 9 Nunki 18:56:40.2 -26:16:00 2.0 9.78 24 45Rho2Sgr 19:23:10.2 -18:15:52 5.8 1.72 32 PPM 236018 19:29:22.9 -19:17:43 8.1 0.48 33 PPM 235972 19:26:51.9 -19:19:56 9.4 0.34 32 11JY31 19:27:45.7 -19:35:35 15.1 32 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
0.9 sigma about the mid-time.
The median site spacing is 23.4 km
RECON observability=0.6 and success probability=4.5%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Kamloops | 06:39:30 | -29.6 | Dark | Down | 14.5 | 210.3 | Really Low | 06:24:30 - 06:54:30 | 6178 |
Victoria | 06:39:37 | -30.7 | Dark | Down | 17.3 | 207.8 | Really Low | 06:24:37 - 06:54:37 | 6143 |
Peachland | 06:39:26 | -30.6 | Dark | Down | 15.1 | 211.0 | Really Low | 06:24:26 - 06:54:26 | 6117 |
Kelowna | 06:39:24 | -30.5 | Dark | Down | 14.9 | 211.2 | Really Low | 06:24:24 - 06:54:24 | 6115 |
Summerland | 06:39:26 | -30.7 | Dark | Down | 15.2 | 211.1 | Really Low | 06:24:26 - 06:54:26 | 6107 |
Penticton | 06:39:23 | -30.8 | Dark | Down | 15.2 | 211.2 | Really Low | 06:24:23 - 06:54:23 | 6101 |
Oliver | 06:39:22 | -31.1 | Dark | Down | 15.5 | 211.2 | Really Low | 06:24:22 - 06:54:22 | 6082 |
Anarchist Mountain Observatory | 06:39:21 | -31.3 | Dark | Down | 15.6 | 211.4 | Really Low | 06:24:21 - 06:54:21 | 6069 |
Tonasket | 06:39:21 | -31.6 | Dark | Down | 15.9 | 211.4 | Really Low | 06:24:21 - 06:54:21 | 6054 |
Okanogan | 06:39:21 | -31.9 | Dark | Down | 16.2 | 211.3 | Really Low | 06:24:21 - 06:54:21 | 6039 |
Brewster | 06:39:20 | -32.1 | Dark | Down | 16.5 | 211.2 | Really Low | 06:24:20 - 06:54:20 | 6030 |
Manson/Chelan | 06:39:21 | -32.2 | Dark | Down | 16.8 | 210.9 | Really Low | 06:24:21 - 06:54:21 | 6028 |
Wenatchee | 06:39:21 | -32.6 | Dark | Down | 17.3 | 210.8 | Really Low | 06:24:21 - 06:54:21 | 6007 |
Ellensburg | 06:39:22 | -32.9 | Dark | Down | 17.7 | 210.7 | Really Low | 06:24:22 - 06:54:22 | 5990 |
Yakima | 06:39:22 | -33.2 | Dark | Down | 18.1 | 210.7 | Really Low | 06:24:22 - 06:54:22 | 5967 |
Toppenish/White Swan | 06:39:19 | -33.5 | Dark | Down | 18.2 | 210.9 | Really Low | 06:24:19 - 06:54:19 | 5951 |
Goldendale | 06:39:19 | -33.9 | Dark | Down | 18.8 | 210.6 | Really Low | 06:24:19 - 06:54:19 | 5931 |
The Dalles | 06:39:22 | -34.0 | Dark | Down | 19.2 | 210.3 | Really Low | 06:24:22 - 06:54:22 | 5927 |
Maupin | 06:39:22 | -34.4 | Dark | Down | 19.5 | 210.5 | Really Low | 06:24:22 - 06:54:22 | 5901 |
Sleaford | 06:38:41 | -30.5 | Dark | Down | 8.1 | 222.7 | Really Low | 06:23:41 - 06:53:41 | 5891 |
PNWRO | 06:39:13 | -34.2 | Dark | Down | 18.0 | 212.3 | Really Low | 06:24:13 - 06:54:13 | 5890 |
Sisters | 06:39:22 | -35.0 | Dark | Down | 20.4 | 210.2 | Low | 06:24:22 - 06:54:22 | 5863 |
Bend | 06:39:20 | -35.3 | Dark | Down | 20.5 | 210.5 | Low | 06:24:20 - 06:54:20 | 5842 |
Oregon Observatory | 06:39:19 | -35.4 | Dark | Down | 20.7 | 210.4 | Low | 06:24:19 - 06:54:19 | 5835 |
North Lake | 06:39:16 | -36.2 | Dark | Down | 21.1 | 211.0 | Low | 06:24:16 - 06:54:16 | 5782 |
Chiloquin | 06:39:19 | -36.4 | Dark | Down | 22.0 | 210.3 | Low | 06:24:19 - 06:54:19 | 5767 |
Klamath Falls | 06:39:17 | -36.8 | Dark | Down | 22.3 | 210.4 | Low | 06:24:17 - 06:54:17 | 5744 |
Lakeview | 06:39:12 | -37.3 | Dark | Down | 21.8 | 211.7 | Low | 06:24:12 - 06:54:12 | 5701 |
Fall River/Burney | 06:39:14 | -38.0 | Dark | Up | 23.2 | 211.0 | Low | 06:24:14 - 06:54:14 | 5659 |
Cedarville | 06:39:10 | -37.9 | Dark | Down | 22.3 | 212.0 | Low | 06:24:10 - 06:54:10 | 5655 |
Susanville | 06:39:10 | -38.8 | Dark | Up | 23.4 | 211.8 | Low | 06:24:10 - 06:54:10 | 5597 |
Greenville | 06:39:12 | -38.9 | Dark | Up | 23.8 | 211.6 | Low | 06:24:12 - 06:54:12 | 5587 |
Gimple | 06:39:10 | -38.9 | Dark | Up | 23.7 | 211.7 | Low | 06:24:10 - 06:54:10 | 5585 |
Quincy | 06:39:10 | -39.1 | Dark | Up | 23.9 | 211.6 | Low | 06:24:10 - 06:54:10 | 5574 |
Portola | 06:39:07 | -39.4 | Dark | Up | 23.9 | 212.1 | Low | 06:24:07 - 06:54:07 | 5552 |
Reno | 06:39:04 | -39.8 | Dark | Up | 23.8 | 212.8 | Low | 06:24:04 - 06:54:04 | 5515 |
Carson City | 06:39:04 | -40.1 | Dark | Up | 24.1 | 212.9 | Low | 06:24:04 - 06:54:04 | 5491 |
Gardnerville | 06:39:02 | -40.4 | Dark | Up | 24.3 | 213.0 | Low | 06:24:02 - 06:54:02 | 5473 |
Yerington | 06:39:01 | -40.5 | Dark | Up | 24.0 | 213.5 | Low | 06:24:01 - 06:54:01 | 5459 |
Hawthorne | 06:38:57 | -41.1 | Dark | Up | 24.2 | 214.1 | Low | 06:23:57 - 06:53:57 | 5411 |
Lee Vining | 06:38:59 | -41.5 | Dark | Up | 24.9 | 213.8 | Low | 06:23:59 - 06:53:59 | 5388 |
Tonopah | 06:38:48 | -42.0 | Dark | Down | 23.9 | 215.4 | Low | 06:23:48 - 06:53:48 | 5336 |
Bishop | 06:38:53 | -42.3 | Dark | Up | 25.0 | 214.6 | Low | 06:23:53 - 06:53:53 | 5324 |
Beatty | 06:38:44 | -43.2 | Dark | Down | 24.7 | 216.1 | Low | 06:23:44 - 06:53:44 | 5240 |
Indian Springs | 06:38:38 | -43.8 | Dark | Down | 24.4 | 217.2 | Low | 06:23:38 - 06:53:38 | 5183 |
Henderson | 06:38:33 | -44.5 | Dark | Down | 24.5 | 217.9 | Low | 06:23:33 - 06:53:33 | 5122 |
Dunrhomin | 06:38:00 | -42.3 | Dark | Down | 16.3 | 225.0 | Really Low | 06:23:00 - 06:53:00 | 5114 |
CU-SBO | 06:38:01 | -42.6 | Dark | Down | 16.6 | 225.0 | Really Low | 06:23:01 - 06:53:01 | 5099 |
Wildwood | 06:38:50 | -45.1 | Dark | Up | 27.8 | 215.3 | Low | 06:23:50 - 06:53:50 | 5094 |
Laughlin/Bullhead City | 06:38:31 | -45.5 | Dark | Down | 25.0 | 218.5 | Low | 06:23:31 - 06:53:31 | 5044 |
Patrick | 06:38:27 | -45.4 | Dark | Down | 24.5 | 219.1 | Low | 06:23:27 - 06:53:27 | 5040 |
Kingman/Dolan Springs | 06:38:28 | -45.6 | Dark | Down | 24.7 | 219.0 | Low | 06:23:28 - 06:53:28 | 5029 |
Mohave Valley | 06:38:29 | -45.7 | Dark | Down | 25.2 | 218.6 | Low | 06:23:29 - 06:53:29 | 5023 |
Idyllwild | 06:38:39 | -46.1 | Dark | Up | 27.2 | 217.1 | Low | 06:23:39 - 06:53:39 | 5007 |
Lake Havasu City | 06:38:29 | -46.2 | Dark | Down | 25.4 | 218.9 | Low | 06:23:29 - 06:53:29 | 4985 |
Parker | 06:38:29 | -46.5 | Dark | Down | 25.7 | 219.1 | Low | 06:23:29 - 06:53:29 | 4958 |
Calipatria | 06:38:33 | -47.0 | Dark | Up | 27.1 | 218.3 | Low | 06:23:33 - 06:53:33 | 4921 |
Yuma | 06:38:27 | -47.7 | Dark | Up | 27.0 | 219.2 | Low | 06:23:27 - 06:53:27 | 4858 |
George/Scottsdale | 06:38:14 | -47.5 | Dark | Down | 24.7 | 221.2 | Low | 06:23:14 - 06:53:14 | 4845 |
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 11JY31, (2022/09/04 06:43UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 41.09 9 Nunki 18:55:15.9 -26:17:49 2.0 9.78 24 45Rho2Sgr 19:21:51.1 -18:18:33 5.8 1.72 32 PPM 236018 19:28:03.3 -19:20:34 8.1 0.48 33 PPM 235972 19:25:32.3 -19:22:43 9.4 0.34 32 11JY31 19:26:25.9 -19:38:24 15.1 32 Positions are for J2000
Event circumstances last updated at 2022/03/14 01:07:24 UT
Marc W. Buie, Southwest Research Institute