Event between (531684) 12UE178 and star GA1100:00804951 with event index number of 2574135
Geocentric closest approach at 2022/11/20 02:39:37 UTC
J2000 position of star is 04:56:45.2 +21:31:26
Equinox of date position of star is 04:58:06.7 +21:33:29
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 113 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=22.8
[RECON map]
TNO is 45.4 AU from the Sun
and 44.5 AU from the Earth.
The TNO is moving 24.5
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 517 seconds.
The 1-sigma cross-track error in the shadow position is
3962 km.
The sky-plane scale is
32253.3 km/arcsec.
The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 14.0 sec chord
Diameter=141.6 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 531684, (2022/11/20 02:40UT) Object RA Dec mag sep mel Aldebaran 04:37:14.2 +16:33:13 0.8 7.03 119 Alnath 05:27:44.4 +28:37:29 1.6 9.74 105 102Iot Tau 05:04:28.0 +21:37:14 4.6 1.48 112 PPM 093881 04:56:11.7 +22:10:54 8.5 0.77 114 PPM 093908 04:57:55.6 +21:35:40 9.0 0.06 113 531684 04:58:07.2 +21:33:29 16.8 113 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
1.7 sigma about the mid-time.
The median site spacing is 0.0 km
RECON observability=0.1 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) |
| Kamloops | 02:42:03 | -23.7 | Dark | Down | 13.5 | 72.4 | Really Low | 02:27:03 - 02:57:03 | 10180 |
| Victoria | 02:42:10 | -21.6 | Dark | Down | 10.9 | 69.8 | Really Low | 02:27:10 - 02:57:10 | 10139 |
| Peachland | 02:42:07 | -24.1 | Dark | Down | 13.6 | 72.6 | Really Low | 02:27:07 - 02:57:07 | 10114 |
| Kelowna | 02:42:07 | -24.3 | Dark | Down | 13.8 | 72.8 | Really Low | 02:27:07 - 02:57:07 | 10112 |
| Summerland | 02:42:08 | -24.1 | Dark | Down | 13.6 | 72.6 | Really Low | 02:27:08 - 02:57:08 | 10103 |
| Penticton | 02:42:08 | -24.2 | Dark | Down | 13.6 | 72.7 | Really Low | 02:27:08 - 02:57:08 | 10097 |
| Oliver | 02:42:09 | -24.2 | Dark | Down | 13.5 | 72.6 | Really Low | 02:27:09 - 02:57:09 | 10077 |
| Anarchist Mountain Observatory | 02:42:09 | -24.3 | Dark | Down | 13.6 | 72.7 | Really Low | 02:27:09 - 02:57:09 | 10062 |
| Tonasket | 02:42:12 | -24.3 | Dark | Down | 13.5 | 72.6 | Really Low | 02:27:12 - 02:57:12 | 10046 |
| Okanogan | 02:42:12 | -24.1 | Dark | Down | 13.3 | 72.4 | Really Low | 02:27:12 - 02:57:12 | 10030 |
| Brewster | 02:42:14 | -24.0 | Dark | Down | 13.1 | 72.2 | Really Low | 02:27:14 - 02:57:14 | 10020 |
| Manson/Chelan | 02:42:14 | -23.7 | Dark | Down | 12.8 | 71.9 | Really Low | 02:27:14 - 02:57:14 | 10018 |
| Wenatchee | 02:42:15 | -23.6 | Dark | Down | 12.5 | 71.7 | Really Low | 02:27:15 - 02:57:15 | 9994 |
| Ellensburg | 02:42:17 | -23.4 | Dark | Down | 12.3 | 71.5 | Really Low | 02:27:17 - 02:57:17 | 9976 |
| Yakima | 02:42:18 | -23.4 | Dark | Down | 12.1 | 71.4 | Really Low | 02:27:18 - 02:57:18 | 9952 |
| Toppenish/White Swan | 02:42:19 | -23.5 | Dark | Down | 12.2 | 71.5 | Really Low | 02:27:19 - 02:57:19 | 9934 |
| Goldendale | 02:42:21 | -23.2 | Dark | Down | 11.7 | 71.1 | Really Low | 02:27:21 - 02:57:21 | 9912 |
| The Dalles | 02:42:22 | -22.9 | Dark | Down | 11.4 | 70.8 | Really Low | 02:27:22 - 02:57:22 | 9908 |
| Sleaford | 02:41:58 | -32.6 | Dark | Down | 22.6 | 83.5 | Low | 02:26:58 - 02:56:58 | 9891 |
| Maupin | 02:42:24 | -22.9 | Dark | Down | 11.3 | 70.8 | Really Low | 02:27:24 - 02:57:24 | 9880 |
| PNWRO | 02:42:21 | -24.5 | Dark | Down | 13.0 | 72.4 | Really Low | 02:27:21 - 02:57:21 | 9870 |
| Sisters | 02:42:26 | -22.5 | Dark | Down | 10.7 | 70.3 | Really Low | 02:27:26 - 02:57:26 | 9839 |
| Bend | 02:42:27 | -22.7 | Dark | Down | 10.8 | 70.4 | Really Low | 02:27:27 - 02:57:27 | 9816 |
| Oregon Observatory | 02:42:27 | -22.5 | Dark | Down | 10.7 | 70.3 | Really Low | 02:27:27 - 02:57:27 | 9809 |
| North Lake | 02:42:30 | -22.9 | Dark | Down | 10.8 | 70.6 | Really Low | 02:27:30 - 02:57:30 | 9753 |
| Chiloquin | 02:42:32 | -22.1 | Dark | Down | 10.0 | 69.8 | Really Low | 02:27:32 - 02:57:32 | 9736 |
| Klamath Falls | 02:42:33 | -22.1 | Dark | Down | 9.9 | 69.8 | Really Low | 02:27:33 - 02:57:33 | 9711 |
| Lakeview | 02:42:34 | -23.2 | Dark | Down | 10.9 | 70.7 | Really Low | 02:27:34 - 02:57:34 | 9667 |
| Fall River/Burney | 02:42:37 | -22.3 | Dark | Down | 9.8 | 69.9 | Really Low | 02:27:37 - 02:57:37 | 9621 |
| Cedarville | 02:42:36 | -23.3 | Dark | Down | 10.8 | 70.7 | Really Low | 02:27:36 - 02:57:36 | 9618 |
| Susanville | 02:42:39 | -22.8 | Dark | Down | 10.1 | 70.3 | Really Low | 02:27:39 - 02:57:39 | 9556 |
| Greenville | 02:42:41 | -22.5 | Dark | Down | 9.8 | 70.0 | Really Low | 02:27:41 - 02:57:41 | 9546 |
| Gimple | 02:42:40 | -22.6 | Dark | Down | 9.8 | 70.1 | Really Low | 02:27:40 - 02:57:40 | 9543 |
| Quincy | 02:42:40 | -22.5 | Dark | Down | 9.7 | 70.0 | Really Low | 02:27:40 - 02:57:40 | 9531 |
| Portola | 02:42:42 | -22.9 | Dark | Down | 10.0 | 70.3 | Really Low | 02:27:42 - 02:57:42 | 9508 |
| Reno | 02:42:43 | -23.3 | Dark | Down | 10.4 | 70.6 | Really Low | 02:27:43 - 02:57:43 | 9470 |
| Carson City | 02:42:44 | -23.3 | Dark | Down | 10.3 | 70.6 | Really Low | 02:27:44 - 02:57:44 | 9444 |
| Gardnerville | 02:42:44 | -23.3 | Dark | Down | 10.3 | 70.5 | Really Low | 02:27:44 - 02:57:44 | 9425 |
| Yerington | 02:42:45 | -23.8 | Dark | Down | 10.7 | 70.9 | Really Low | 02:27:45 - 02:57:45 | 9410 |
| Hawthorne | 02:42:46 | -24.1 | Dark | Down | 11.0 | 71.1 | Really Low | 02:27:46 - 02:57:46 | 9360 |
| Lee Vining | 02:42:48 | -23.7 | Dark | Down | 10.4 | 70.8 | Really Low | 02:27:48 - 02:57:48 | 9335 |
| Tonopah | 02:42:48 | -25.2 | Dark | Down | 11.9 | 71.8 | Really Low | 02:27:48 - 02:57:48 | 9282 |
| Bishop | 02:42:50 | -24.2 | Dark | Down | 10.8 | 71.1 | Really Low | 02:27:50 - 02:57:50 | 9268 |
| Beatty | 02:42:52 | -25.4 | Dark | Down | 11.9 | 71.9 | Really Low | 02:27:52 - 02:57:52 | 9180 |
| Indian Springs | 02:42:53 | -26.3 | Dark | Down | 12.6 | 72.4 | Really Low | 02:27:53 - 02:57:53 | 9120 |
| Dunrhomin | 02:42:40 | -34.6 | Dark | Down | 21.4 | 79.4 | Low | 02:27:40 - 02:57:40 | 9059 |
| Henderson | 02:42:55 | -26.8 | Dark | Down | 13.0 | 72.7 | Really Low | 02:27:55 - 02:57:55 | 9056 |
| CU-SBO | 02:42:41 | -34.5 | Dark | Down | 21.3 | 79.2 | Low | 02:27:41 - 02:57:41 | 9044 |
| Wildwood | 02:43:00 | -23.6 | Dark | Down | 9.6 | 70.4 | Really Low | 02:28:00 - 02:58:00 | 9026 |
| Laughlin/Bullhead City | 02:42:57 | -27.0 | Dark | Down | 13.0 | 72.7 | Really Low | 02:27:57 - 02:57:57 | 8975 |
| Patrick | 02:42:57 | -27.6 | Dark | Down | 13.7 | 73.1 | Really Low | 02:27:57 - 02:57:57 | 8971 |
| Kingman/Dolan Springs | 02:42:57 | -27.5 | Dark | Down | 13.5 | 73.0 | Really Low | 02:27:57 - 02:57:57 | 8960 |
| Mohave Valley | 02:42:59 | -27.0 | Dark | Down | 13.0 | 72.6 | Really Low | 02:27:59 - 02:57:59 | 8953 |
| Idyllwild | 02:43:01 | -25.1 | Dark | Down | 10.9 | 71.3 | Really Low | 02:28:01 - 02:58:01 | 8935 |
| Lake Havasu City | 02:42:59 | -27.2 | Dark | Down | 13.0 | 72.7 | Really Low | 02:27:59 - 02:57:59 | 8913 |
| Parker | 02:43:01 | -27.2 | Dark | Down | 13.0 | 72.6 | Really Low | 02:28:01 - 02:58:01 | 8885 |
| Calipatria | 02:43:03 | -26.0 | Dark | Down | 11.7 | 71.8 | Really Low | 02:28:03 - 02:58:03 | 8845 |
| Yuma | 02:43:05 | -26.7 | Dark | Down | 12.3 | 72.2 | Really Low | 02:28:05 - 02:58:05 | 8780 |
| George/Scottsdale | 02:43:02 | -29.1 | Dark | Down | 14.8 | 73.7 | Really Low | 02:28:02 - 02:58:02 | 8767 |
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 531684, (2022/11/20 02:40UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 7.03 119 Alnath 05:26:17.6 +28:36:23 1.6 9.74 105 102Iot Tau 05:03:05.8 +21:35:23 4.6 1.48 112 PPM 093881 04:54:49.3 +22:08:47 8.5 0.77 114 PPM 093908 04:56:33.6 +21:33:36 9.0 0.06 113 531684 04:56:45.2 +21:31:26 16.8 113 Positions are for J2000
Event circumstances last updated at 2022/10/03 04:13:05 UT
Marc W. Buie, Southwest Research Institute