Event between (530930) 11WG157 and star GA1320:01604467 with event index number of 2443766
Geocentric closest approach at 2023/12/29 11:41:07 UTC
J2000 position of star is 04:05:30.1 +43:39:02
Equinox of date position of star is 04:07:03.4 +43:42:34
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 58 degrees from the moon.
Moon is 94% illuminated.
TNO apparent brightness V=22.2
[RECON map]
TNO is 30.6 AU from the Sun
and 29.8 AU from the Earth.
The TNO is moving 21.7
km/sec on the sky relative to the star, or,
3.6 arcsec/hr.
The 1-sigma error in the time of the event is 96 seconds.
The 1-sigma cross-track error in the shadow position is
1322 km.
The sky-plane scale is
21642.6 km/arcsec.
The TNO has an absolute magnitude Hv=7.3
Diameter=211.8 km assuming a 5% albedo -- 9.8 sec chord
Diameter=86.5 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is 1:1
Star training set for 530930, (2023/12/29 11:35UT) Object RA Dec mag sep mel Aldebaran 04:37:18.0 +16:33:20 0.8 27.90 57 Mirphak 03:26:02.9 +49:56:40 1.8 9.38 65 PPM 046963 04:19:48.2 +42:11:53 6.1 2.76 56 PPM 046793 04:08:05.9 +43:28:48 7.9 0.29 58 530930 04:07:10.8 +43:42:51 15.4 58 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 21.4 km
RECON observability=0.8 and success probability=1.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 11:37:05 | -31.6 | Dark | Up | 25.6 | 309.1 | Low | 11:28:38 - 11:45:33 | -4215 |
| Kamloops | 11:37:10 | -40.7 | Dark | Up | 32.1 | 301.3 | Up | 11:28:43 - 11:45:38 | -4995 |
| Dunrhomin | 11:36:38 | -30.8 | Dark | Up | 17.5 | 313.0 | Really Low | 11:28:11 - 11:45:06 | -5019 |
| Kelowna | 11:37:08 | -40.3 | Dark | Up | 31.2 | 302.2 | Up | 11:28:41 - 11:45:36 | -5023 |
| CU-SBO | 11:36:38 | -30.8 | Dark | Up | 17.4 | 313.0 | Really Low | 11:28:10 - 11:45:05 | -5043 |
| Peachland | 11:37:07 | -40.5 | Dark | Up | 31.3 | 302.1 | Up | 11:28:40 - 11:45:35 | -5046 |
| Summerland | 11:37:07 | -40.5 | Dark | Up | 31.2 | 302.2 | Up | 11:28:39 - 11:45:34 | -5054 |
| Penticton | 11:37:05 | -40.4 | Dark | Up | 31.1 | 302.3 | Up | 11:28:38 - 11:45:33 | -5054 |
| Oliver | 11:37:06 | -40.5 | Dark | Up | 30.9 | 302.5 | Up | 11:28:38 - 11:45:33 | -5084 |
| Anarchist Mountain Observatory | 11:37:05 | -40.4 | Dark | Up | 30.7 | 302.7 | Up | 11:28:38 - 11:45:33 | -5089 |
| Tonasket | 11:37:04 | -40.5 | Dark | Up | 30.6 | 302.8 | Up | 11:28:36 - 11:45:31 | -5118 |
| Okanogan | 11:37:05 | -40.7 | Dark | Up | 30.5 | 302.9 | Up | 11:28:37 - 11:45:32 | -5153 |
| Brewster | 11:37:03 | -40.9 | Dark | Up | 30.5 | 302.9 | Up | 11:28:36 - 11:45:31 | -5185 |
| Manson/Chelan | 11:37:03 | -41.1 | Dark | Up | 30.6 | 302.8 | Up | 11:28:36 - 11:45:31 | -5220 |
| Wenatchee | 11:37:03 | -41.3 | Dark | Up | 30.4 | 303.0 | Up | 11:28:35 - 11:45:30 | -5268 |
| Victoria | 11:37:08 | -43.1 | Dark | Up | 32.7 | 300.8 | Up | 11:28:41 - 11:45:36 | -5313 |
| Ellensburg | 11:37:03 | -41.6 | Dark | Up | 30.3 | 303.1 | Up | 11:28:35 - 11:45:30 | -5314 |
| PNWRO | 11:36:58 | -40.6 | Dark | Up | 28.8 | 304.4 | Low | 11:28:30 - 11:45:25 | -5318 |
| Yakima | 11:37:02 | -41.6 | Dark | Up | 30.1 | 303.2 | Up | 11:28:34 - 11:45:29 | -5349 |
| Toppenish/White Swan | 11:37:00 | -41.6 | Dark | Up | 29.9 | 303.4 | Low | 11:28:33 - 11:45:28 | -5360 |
| Goldendale | 11:36:58 | -42.0 | Dark | Up | 29.8 | 303.5 | Low | 11:28:31 - 11:45:26 | -5427 |
| The Dalles | 11:37:00 | -42.2 | Dark | Up | 29.9 | 303.4 | Low | 11:28:32 - 11:45:27 | -5464 |
| Maupin | 11:36:58 | -42.2 | Dark | Up | 29.6 | 303.7 | Low | 11:28:31 - 11:45:26 | -5495 |
| Sisters | 11:36:58 | -42.7 | Dark | Up | 29.4 | 303.8 | Low | 11:28:31 - 11:45:26 | -5595 |
| Bend | 11:36:57 | -42.6 | Dark | Up | 29.1 | 304.1 | Low | 11:28:29 - 11:45:24 | -5603 |
| Oregon Observatory | 11:36:56 | -42.7 | Dark | Up | 29.1 | 304.1 | Low | 11:28:28 - 11:45:23 | -5625 |
| North Lake | 11:36:55 | -42.4 | Dark | Up | 28.4 | 304.6 | Low | 11:28:27 - 11:45:22 | -5653 |
| Lakeview | 11:36:52 | -42.1 | Dark | Up | 27.5 | 305.3 | Low | 11:28:25 - 11:45:20 | -5717 |
| Chiloquin | 11:36:55 | -43.2 | Dark | Up | 28.6 | 304.5 | Low | 11:28:27 - 11:45:22 | -5760 |
| Cedarville | 11:36:51 | -42.1 | Dark | Up | 27.0 | 305.7 | Low | 11:28:23 - 11:45:18 | -5765 |
| Klamath Falls | 11:36:54 | -43.2 | Dark | Up | 28.4 | 304.7 | Low | 11:28:27 - 11:45:22 | -5786 |
| Fall River/Burney | 11:36:51 | -43.0 | Dark | Up | 27.5 | 305.4 | Low | 11:28:23 - 11:45:18 | -5870 |
| Susanville | 11:36:50 | -42.5 | Dark | Up | 26.7 | 305.9 | Low | 11:28:22 - 11:45:17 | -5886 |
| Tonopah | 11:36:42 | -40.0 | Dark | Up | 23.2 | 308.2 | Low | 11:28:14 - 11:45:09 | -5901 |
| Reno | 11:36:46 | -42.0 | Dark | Up | 25.7 | 306.6 | Low | 11:28:19 - 11:45:14 | -5917 |
| Gimple | 11:36:50 | -42.7 | Dark | Up | 26.6 | 306.0 | Low | 11:28:22 - 11:45:17 | -5921 |
| Greenville | 11:36:49 | -42.8 | Dark | Up | 26.7 | 305.9 | Low | 11:28:21 - 11:45:16 | -5926 |
| Patrick | 11:36:35 | -37.2 | Dark | Up | 19.4 | 310.3 | Really Low | 11:28:07 - 11:45:02 | -5927 |
| Portola | 11:36:47 | -42.4 | Dark | Up | 26.2 | 306.2 | Low | 11:28:20 - 11:45:15 | -5929 |
| Yerington | 11:36:46 | -41.5 | Dark | Up | 24.9 | 307.1 | Low | 11:28:18 - 11:45:13 | -5930 |
| Indian Springs | 11:36:38 | -38.7 | Dark | Up | 21.3 | 309.3 | Low | 11:28:10 - 11:45:05 | -5938 |
| Hawthorne | 11:36:44 | -41.1 | Dark | Up | 24.3 | 307.5 | Low | 11:28:16 - 11:45:11 | -5940 |
| Henderson | 11:36:37 | -38.2 | Dark | Up | 20.5 | 309.7 | Low | 11:28:10 - 11:45:05 | -5942 |
| George/Scottsdale | 11:36:31 | -35.4 | Dark | Up | 17.1 | 311.5 | Really Low | 11:28:03 - 11:44:58 | -5942 |
| Quincy | 11:36:49 | -42.8 | Dark | Up | 26.6 | 306.0 | Low | 11:28:21 - 11:45:16 | -5943 |
| Carson City | 11:36:46 | -42.0 | Dark | Up | 25.4 | 306.8 | Low | 11:28:19 - 11:45:14 | -5947 |
| Kingman/Dolan Springs | 11:36:35 | -37.4 | Dark | Up | 19.4 | 310.3 | Really Low | 11:28:08 - 11:45:03 | -5957 |
| Gardnerville | 11:36:46 | -41.9 | Dark | Up | 25.3 | 306.9 | Low | 11:28:18 - 11:45:13 | -5966 |
| Beatty | 11:36:39 | -39.6 | Dark | Up | 22.2 | 308.8 | Low | 11:28:12 - 11:45:07 | -5973 |
| Laughlin/Bullhead City | 11:36:35 | -37.8 | Dark | Up | 19.7 | 310.1 | Really Low | 11:28:08 - 11:45:03 | -5990 |
| Mohave Valley | 11:36:35 | -37.8 | Dark | Up | 19.5 | 310.2 | Really Low | 11:28:07 - 11:45:02 | -6012 |
| Lee Vining | 11:36:43 | -41.5 | Dark | Up | 24.3 | 307.5 | Low | 11:28:15 - 11:45:10 | -6016 |
| Bishop | 11:36:42 | -40.9 | Dark | Up | 23.5 | 308.0 | Low | 11:28:14 - 11:45:09 | -6027 |
| Lake Havasu City | 11:36:33 | -37.5 | Dark | Up | 19.1 | 310.4 | Really Low | 11:28:05 - 11:45:00 | -6031 |
| Parker | 11:36:34 | -37.5 | Dark | Up | 18.9 | 310.5 | Really Low | 11:28:06 - 11:45:01 | -6058 |
| Yuma | 11:36:32 | -37.7 | Dark | Up | 18.1 | 310.8 | Really Low | 11:28:05 - 11:45:00 | -6199 |
| Calipatria | 11:36:33 | -38.4 | Dark | Up | 19.0 | 310.3 | Really Low | 11:28:05 - 11:45:00 | -6218 |
| Idyllwild | 11:36:35 | -39.5 | Dark | Up | 20.1 | 309.7 | Low | 11:28:08 - 11:45:03 | -6239 |
| Wildwood | 11:36:37 | -41.0 | Dark | Up | 21.6 | 309.0 | Low | 11:28:10 - 11:45:05 | -6319 |
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 530930, (2023/12/29 11:35UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 27.90 57 Mirphak 03:24:19.4 +49:51:40 1.8 9.38 65 PPM 046963 04:18:08.2 +42:08:27 6.1 2.76 56 PPM 046793 04:06:25.3 +43:25:01 7.9 0.29 58 530930 04:05:30.1 +43:39:02 15.4 58 Positions are for J2000
Event circumstances last updated at 2022/03/24 00:34:39 UT
Marc W. Buie, Southwest Research Institute