Event between (530839) 11UK411 and star GA1040:00325723 with event index number of 2439346
Geocentric closest approach at 2022/12/30 04:39:17 UTC
J2000 position of star is 03:20:35.9 +15:00:00
Equinox of date position of star is 03:21:52.2 +15:04:52
Stellar brightness G=12.1,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 42 degrees from the moon.
Moon is 52% illuminated.
TNO apparent brightness V=22.1
[RECON map]
TNO is 32.7 AU from the Sun
and 32.0 AU from the Earth.
The TNO is moving 15.2
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 98 seconds.
The 1-sigma cross-track error in the shadow position is
1243 km.
The sky-plane scale is
23230.9 km/arcsec.
The TNO has an absolute magnitude Hv=6.9
Diameter=245.5 km assuming a 5% albedo -- 16.4 sec chord
Diameter=100.2 km assuming a 30% albedo -- 6.7 sec chord
Dynamical classification is 5:3EE
Star training set for 530839, (2022/12/30 04:39UT) Object RA Dec mag sep mel Aldebaran 04:37:14.6 +16:33:13 0.8 18.18 60 Menkar 03:03:29.1 +04:10:43 2.5 11.81 35 PPM 119093 03:28:34.9 +12:48:51 6.5 2.79 43 PPM 118986 03:19:44.3 +15:15:30 8.4 0.55 41 PPM 119011 03:21:25.3 +14:54:57 9.8 0.20 41 530839 03:21:52.9 +15:04:54 12.1 42 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 24.9 km
RECON observability=1.0 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 | 04:38:30 | -42.0 | Dark | Up | 54.3 | 176.2 | Up | 04:29:52 - 04:47:08 | 8711 |
| Kelowna | 04:38:27 | -42.7 | Dark | Up | 55.1 | 177.6 | Up | 04:29:49 - 04:47:05 | 8623 |
| Peachland | 04:38:29 | -42.6 | Dark | Up | 55.2 | 177.2 | Up | 04:29:51 - 04:47:07 | 8619 |
| Summerland | 04:38:29 | -42.7 | Dark | Up | 55.4 | 177.3 | Up | 04:29:51 - 04:47:07 | 8604 |
| Sleaford | 04:37:25 | -49.5 | Dark | Up | 51.7 | 198.7 | Up | 04:28:47 - 04:46:03 | 8603 |
| Penticton | 04:38:28 | -42.7 | Dark | Up | 55.4 | 177.5 | Up | 04:29:50 - 04:47:06 | 8596 |
| Victoria | 04:38:48 | -40.6 | Dark | Up | 56.2 | 170.8 | Up | 04:30:10 - 04:47:26 | 8582 |
| Oliver | 04:38:29 | -42.8 | Dark | Up | 55.8 | 177.5 | Up | 04:29:51 - 04:47:07 | 8565 |
| Anarchist Mountain Observatory | 04:38:28 | -43.0 | Dark | Up | 56.0 | 177.8 | Up | 04:29:50 - 04:47:06 | 8547 |
| Tonasket | 04:38:29 | -43.0 | Dark | Up | 56.3 | 177.6 | Up | 04:29:51 - 04:47:07 | 8520 |
| Okanogan | 04:38:30 | -43.0 | Dark | Up | 56.6 | 177.4 | Up | 04:29:52 - 04:47:08 | 8493 |
| Brewster | 04:38:32 | -43.0 | Dark | Up | 56.9 | 177.0 | Up | 04:29:54 - 04:47:10 | 8473 |
| Manson/Chelan | 04:38:34 | -42.8 | Dark | Up | 57.1 | 176.3 | Up | 04:29:56 - 04:47:12 | 8461 |
| Wenatchee | 04:38:35 | -42.8 | Dark | Up | 57.5 | 176.0 | Up | 04:29:57 - 04:47:13 | 8422 |
| Ellensburg | 04:38:37 | -42.7 | Dark | Up | 57.9 | 175.6 | Up | 04:29:59 - 04:47:15 | 8389 |
| Yakima | 04:38:38 | -42.8 | Dark | Up | 58.3 | 175.5 | Up | 04:30:00 - 04:47:16 | 8353 |
| Toppenish/White Swan | 04:38:38 | -42.9 | Dark | Up | 58.6 | 175.8 | Up | 04:30:00 - 04:47:16 | 8329 |
| Goldendale | 04:38:41 | -42.8 | Dark | Up | 59.1 | 174.9 | Up | 04:30:03 - 04:47:19 | 8288 |
| The Dalles | 04:38:43 | -42.6 | Dark | Up | 59.3 | 174.2 | Up | 04:30:05 - 04:47:21 | 8275 |
| PNWRO | 04:38:31 | -44.0 | Dark | Up | 59.0 | 178.5 | Up | 04:29:53 - 04:47:09 | 8266 |
| Maupin | 04:38:43 | -42.7 | Dark | Up | 59.7 | 174.4 | Up | 04:30:05 - 04:47:21 | 8234 |
| Sisters | 04:38:48 | -42.5 | Dark | Up | 60.6 | 173.3 | Up | 04:30:10 - 04:47:26 | 8163 |
| Bend | 04:38:47 | -42.7 | Dark | Up | 60.8 | 173.7 | Up | 04:30:09 - 04:47:25 | 8136 |
| Oregon Observatory | 04:38:47 | -42.7 | Dark | Up | 61.0 | 173.4 | Up | 04:30:09 - 04:47:25 | 8123 |
| North Lake | 04:38:46 | -43.1 | Dark | Up | 61.7 | 174.4 | Up | 04:30:08 - 04:47:24 | 8051 |
| Chiloquin | 04:38:52 | -42.6 | Dark | Up | 62.3 | 172.3 | Up | 04:30:14 - 04:47:30 | 8009 |
| Klamath Falls | 04:38:52 | -42.7 | Dark | Up | 62.6 | 172.4 | Up | 04:30:14 - 04:47:30 | 7974 |
| Lakeview | 04:38:45 | -43.7 | Dark | Up | 62.7 | 175.4 | Up | 04:30:07 - 04:47:23 | 7940 |
| Cedarville | 04:38:46 | -43.9 | Dark | Up | 63.4 | 175.6 | Up | 04:30:08 - 04:47:24 | 7873 |
| Fall River/Burney | 04:38:52 | -43.1 | Dark | Up | 63.8 | 172.9 | Up | 04:30:14 - 04:47:30 | 7854 |
| Susanville | 04:38:50 | -43.7 | Dark | Up | 64.5 | 174.4 | Up | 04:30:12 - 04:47:28 | 7777 |
| Greenville | 04:38:52 | -43.5 | Dark | Up | 64.7 | 173.7 | Up | 04:30:14 - 04:47:30 | 7757 |
| Gimple | 04:38:52 | -43.5 | Dark | Up | 64.8 | 173.9 | Up | 04:30:14 - 04:47:30 | 7755 |
| Quincy | 04:38:53 | -43.5 | Dark | Up | 64.9 | 173.7 | Up | 04:30:15 - 04:47:31 | 7737 |
| Portola | 04:38:50 | -43.9 | Dark | Up | 65.1 | 174.7 | Up | 04:30:12 - 04:47:28 | 7714 |
| Reno | 04:38:47 | -44.4 | Dark | Up | 65.4 | 176.1 | Up | 04:30:09 - 04:47:25 | 7674 |
| Carson City | 04:38:48 | -44.4 | Dark | Up | 65.8 | 176.1 | Up | 04:30:10 - 04:47:26 | 7639 |
| Gardnerville | 04:38:48 | -44.5 | Dark | Up | 66.0 | 176.2 | Up | 04:30:10 - 04:47:26 | 7614 |
| Yerington | 04:38:45 | -44.9 | Dark | Up | 66.0 | 177.6 | Up | 04:30:07 - 04:47:23 | 7605 |
| Hawthorne | 04:38:42 | -45.4 | Dark | Up | 66.5 | 178.8 | Up | 04:30:04 - 04:47:20 | 7548 |
| Lee Vining | 04:38:46 | -45.1 | Dark | Up | 67.0 | 177.6 | Up | 04:30:08 - 04:47:24 | 7504 |
| Tonopah | 04:38:36 | -46.5 | Dark | Up | 66.9 | 182.2 | Up | 04:29:58 - 04:47:14 | 7471 |
| Dunrhomin | 04:37:28 | -55.0 | Dark | Up | 62.4 | 207.2 | Up | 04:28:50 - 04:46:06 | 7460 |
| CU-SBO | 04:37:29 | -55.0 | Dark | Up | 62.7 | 207.3 | Up | 04:28:51 - 04:46:07 | 7436 |
| Bishop | 04:38:43 | -45.7 | Dark | Up | 67.6 | 179.4 | Up | 04:30:05 - 04:47:21 | 7428 |
| Beatty | 04:38:35 | -47.0 | Dark | Up | 68.1 | 183.5 | Up | 04:29:57 - 04:47:13 | 7345 |
| Indian Springs | 04:38:30 | -47.9 | Dark | Up | 68.3 | 186.3 | Up | 04:29:52 - 04:47:08 | 7289 |
| Henderson | 04:38:26 | -48.4 | Dark | Up | 68.8 | 188.3 | Up | 04:29:48 - 04:47:04 | 7220 |
| Patrick | 04:38:21 | -49.4 | Dark | Up | 69.2 | 191.5 | Up | 04:29:43 - 04:46:59 | 7133 |
| Laughlin/Bullhead City | 04:38:25 | -48.8 | Dark | Up | 69.6 | 189.7 | Up | 04:29:47 - 04:47:03 | 7123 |
| Kingman/Dolan Springs | 04:38:22 | -49.3 | Dark | Up | 69.5 | 191.1 | Up | 04:29:44 - 04:47:00 | 7114 |
| Wildwood | 04:38:50 | -45.7 | Dark | Up | 70.9 | 178.7 | Up | 04:30:12 - 04:47:28 | 7104 |
| Mohave Valley | 04:38:26 | -48.9 | Dark | Up | 69.9 | 189.9 | Up | 04:29:48 - 04:47:04 | 7095 |
| Lake Havasu City | 04:38:26 | -49.1 | Dark | Up | 70.2 | 190.8 | Up | 04:29:48 - 04:47:04 | 7049 |
| Idyllwild | 04:38:40 | -47.2 | Dark | Up | 71.2 | 184.3 | Up | 04:30:02 - 04:47:18 | 7024 |
| Parker | 04:38:26 | -49.1 | Dark | Up | 70.6 | 191.0 | Up | 04:29:48 - 04:47:04 | 7012 |
| Calipatria | 04:38:34 | -48.2 | Dark | Up | 71.7 | 188.0 | Up | 04:29:56 - 04:47:12 | 6935 |
| George/Scottsdale | 04:38:11 | -51.1 | Dark | Up | 70.5 | 198.1 | Up | 04:29:33 - 04:46:49 | 6916 |
| Yuma | 04:38:29 | -48.9 | Dark | Up | 72.0 | 190.9 | Up | 04:29:51 - 04:47:07 | 6870 |
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 530839, (2022/12/30 04:39UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 18.18 60 Menkar 03:02:16.8 +04:05:21 2.5 11.81 35 PPM 119093 03:27:18.7 +12:44:07 6.5 2.79 43 PPM 118986 03:18:27.2 +15:10:32 8.4 0.55 41 PPM 119011 03:20:08.3 +14:50:02 9.8 0.20 41 530839 03:20:35.9 +15:00:00 12.1 41 Positions are for J2000
Event circumstances last updated at 2022/10/10 04:16:18 UT
Marc W. Buie, Southwest Research Institute