Event between 05UN524 and star GA1260:03315915 with event index number of 1957765
Geocentric closest approach at 2023/01/22 03:27:53 UTC
J2000 position of star is 08:36:04.8 +37:49:48
Equinox of date position of star is 08:37:30.8 +37:45:07
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 166 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=21.6
[RECON map]
TNO is 19.0 AU from the Sun
and 18.1 AU from the Earth.
The TNO is moving 23.1
km/sec on the sky relative to the star, or,
6.3 arcsec/hr.
The 1-sigma error in the time of the event is 46 seconds.
The 1-sigma cross-track error in the shadow position is
714 km.
The sky-plane scale is
13131.7 km/arcsec.
The TNO has an absolute magnitude Hv=8.8
Diameter=102.8 km assuming a 5% albedo -- 4.5 sec chord
Diameter=42.0 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 05UN524, (2023/01/22 03:28UT) Object RA Dec mag sep mel Pollux 07:46:43.5 +27:58:07 1.1 14.45 167 PPM 073799 08:34:24.5 +37:56:08 5.9 0.65 166 PPM 073862 08:39:46.2 +36:56:17 7.4 0.92 167 PPM 073846 08:38:41.5 +37:51:11 9.4 0.24 166 PPM 073829 08:37:18.8 +37:49:27 11.0 0.09 166 05UN524 08:37:34.2 +37:44:56 15.7 166 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 26.4 km
RECON observability=1.0 and success probability=4.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 03:31:17 | -27.5 | Dark | Down | 37.0 | 73.0 | Up | 03:26:55 - 03:35:38 | 3671 |
| Victoria | 03:31:26 | -25.6 | Dark | Down | 34.4 | 69.7 | Up | 03:27:05 - 03:35:48 | 3591 |
| Peachland | 03:31:18 | -27.9 | Dark | Down | 37.1 | 72.7 | Up | 03:26:57 - 03:35:40 | 3567 |
| Kelowna | 03:31:17 | -28.1 | Dark | Down | 37.3 | 73.0 | Up | 03:26:56 - 03:35:39 | 3566 |
| Summerland | 03:31:18 | -28.0 | Dark | Down | 37.1 | 72.6 | Up | 03:26:57 - 03:35:40 | 3550 |
| Penticton | 03:31:19 | -28.1 | Dark | Down | 37.1 | 72.7 | Up | 03:26:57 - 03:35:40 | 3540 |
| Oliver | 03:31:19 | -28.1 | Dark | Down | 37.0 | 72.4 | Up | 03:26:58 - 03:35:41 | 3508 |
| Anarchist Mountain Observatory | 03:31:20 | -28.2 | Dark | Down | 37.1 | 72.4 | Up | 03:26:58 - 03:35:41 | 3485 |
| Tonasket | 03:31:20 | -28.2 | Dark | Down | 36.9 | 72.1 | Up | 03:26:59 - 03:35:42 | 3459 |
| Okanogan | 03:31:22 | -28.1 | Dark | Down | 36.8 | 71.8 | Up | 03:27:00 - 03:35:43 | 3434 |
| Brewster | 03:31:23 | -28.0 | Dark | Down | 36.5 | 71.5 | Up | 03:27:01 - 03:35:44 | 3417 |
| Manson/Chelan | 03:31:24 | -27.7 | Dark | Down | 36.2 | 71.1 | Up | 03:27:02 - 03:35:45 | 3411 |
| Wenatchee | 03:31:25 | -27.6 | Dark | Down | 36.0 | 70.7 | Up | 03:27:03 - 03:35:46 | 3374 |
| Sleaford | 03:30:51 | -36.1 | Dark | Down | 46.0 | 83.8 | Up | 03:26:30 - 03:35:13 | 3362 |
| Ellensburg | 03:31:26 | -27.5 | Dark | Down | 35.7 | 70.3 | Up | 03:27:04 - 03:35:47 | 3344 |
| Yakima | 03:31:27 | -27.4 | Dark | Down | 35.6 | 70.0 | Up | 03:27:06 - 03:35:49 | 3308 |
| Toppenish/White Swan | 03:31:27 | -27.6 | Dark | Down | 35.6 | 70.0 | Up | 03:27:06 - 03:35:49 | 3281 |
| Goldendale | 03:31:29 | -27.3 | Dark | Down | 35.1 | 69.4 | Up | 03:27:07 - 03:35:50 | 3247 |
| The Dalles | 03:31:30 | -27.0 | Dark | Down | 34.8 | 69.0 | Up | 03:27:09 - 03:35:52 | 3240 |
| Maupin | 03:31:31 | -27.1 | Dark | Down | 34.7 | 68.8 | Up | 03:27:10 - 03:35:53 | 3198 |
| PNWRO | 03:31:26 | -28.6 | Dark | Down | 36.4 | 70.6 | Up | 03:27:05 - 03:35:48 | 3190 |
| Sisters | 03:31:34 | -26.7 | Dark | Down | 34.1 | 68.0 | Up | 03:27:12 - 03:35:55 | 3136 |
| Bend | 03:31:34 | -26.9 | Dark | Down | 34.2 | 68.0 | Up | 03:27:12 - 03:35:55 | 3104 |
| Oregon Observatory | 03:31:35 | -26.8 | Dark | Down | 34.0 | 67.8 | Up | 03:27:13 - 03:35:56 | 3093 |
| North Lake | 03:31:35 | -27.2 | Dark | Down | 34.2 | 67.7 | Up | 03:27:13 - 03:35:56 | 3011 |
| Chiloquin | 03:31:38 | -26.4 | Dark | Down | 33.3 | 66.8 | Up | 03:27:16 - 03:35:59 | 2988 |
| Klamath Falls | 03:31:39 | -26.5 | Dark | Down | 33.2 | 66.7 | Up | 03:27:17 - 03:36:00 | 2953 |
| Lakeview | 03:31:36 | -27.5 | Dark | Down | 34.1 | 67.3 | Up | 03:27:15 - 03:35:58 | 2890 |
| Fall River/Burney | 03:31:41 | -26.7 | Dark | Down | 33.0 | 66.1 | Up | 03:27:19 - 03:36:02 | 2826 |
| Cedarville | 03:31:38 | -27.6 | Dark | Down | 34.0 | 67.0 | Up | 03:27:16 - 03:35:59 | 2820 |
| Susanville | 03:31:40 | -27.2 | Dark | Down | 33.2 | 66.1 | Up | 03:27:19 - 03:36:02 | 2735 |
| Greenville | 03:31:42 | -27.0 | Dark | Down | 32.9 | 65.8 | Up | 03:27:20 - 03:36:03 | 2722 |
| Gimple | 03:31:41 | -27.0 | Dark | Down | 33.0 | 65.8 | Up | 03:27:20 - 03:36:03 | 2718 |
| Quincy | 03:31:42 | -27.0 | Dark | Down | 32.8 | 65.7 | Up | 03:27:20 - 03:36:03 | 2703 |
| Portola | 03:31:41 | -27.3 | Dark | Down | 33.1 | 65.8 | Up | 03:27:20 - 03:36:03 | 2670 |
| Reno | 03:31:41 | -27.8 | Dark | Down | 33.5 | 65.9 | Up | 03:27:19 - 03:36:02 | 2618 |
| Carson City | 03:31:41 | -27.8 | Dark | Down | 33.3 | 65.7 | Up | 03:27:20 - 03:36:03 | 2582 |
| Gardnerville | 03:31:42 | -27.8 | Dark | Down | 33.3 | 65.6 | Up | 03:27:20 - 03:36:03 | 2557 |
| Yerington | 03:31:41 | -28.3 | Dark | Down | 33.7 | 65.9 | Up | 03:27:19 - 03:36:02 | 2537 |
| Hawthorne | 03:31:41 | -28.7 | Dark | Down | 33.9 | 65.8 | Up | 03:27:19 - 03:36:02 | 2470 |
| Lee Vining | 03:31:43 | -28.3 | Dark | Down | 33.3 | 65.3 | Up | 03:27:21 - 03:36:04 | 2436 |
| Tonopah | 03:31:39 | -29.7 | Dark | Down | 34.7 | 66.1 | Up | 03:27:18 - 03:36:01 | 2366 |
| Bishop | 03:31:42 | -28.8 | Dark | Down | 33.6 | 65.2 | Up | 03:27:20 - 03:36:03 | 2348 |
| Beatty | 03:31:40 | -30.1 | Dark | Down | 34.6 | 65.5 | Up | 03:27:19 - 03:36:02 | 2234 |
| Indian Springs | 03:31:39 | -30.9 | Dark | Down | 35.2 | 65.7 | Up | 03:27:17 - 03:36:00 | 2157 |
| Dunrhomin | 03:31:11 | -38.9 | Dark | Down | 44.1 | 72.6 | Up | 03:26:50 - 03:35:33 | 2145 |
| CU-SBO | 03:31:12 | -38.9 | Dark | Down | 44.0 | 72.4 | Up | 03:26:51 - 03:35:34 | 2122 |
| Henderson | 03:31:38 | -31.4 | Dark | Down | 35.5 | 65.6 | Up | 03:27:17 - 03:36:00 | 2076 |
| Wildwood | 03:31:48 | -28.4 | Dark | Down | 32.0 | 63.2 | Up | 03:27:26 - 03:36:09 | 2040 |
| Laughlin/Bullhead City | 03:31:39 | -31.7 | Dark | Down | 35.4 | 65.2 | Up | 03:27:18 - 03:36:01 | 1973 |
| Patrick | 03:31:37 | -32.3 | Dark | Down | 36.1 | 65.6 | Up | 03:27:16 - 03:35:59 | 1968 |
| Kingman/Dolan Springs | 03:31:38 | -32.1 | Dark | Down | 35.8 | 65.4 | Up | 03:27:16 - 03:35:59 | 1954 |
| Mohave Valley | 03:31:39 | -31.7 | Dark | Down | 35.3 | 65.0 | Up | 03:27:18 - 03:36:01 | 1946 |
| Idyllwild | 03:31:45 | -29.9 | Dark | Down | 33.3 | 63.6 | Up | 03:27:24 - 03:36:07 | 1922 |
| Lake Havasu City | 03:31:39 | -31.9 | Dark | Down | 35.4 | 64.9 | Up | 03:27:18 - 03:36:01 | 1896 |
| Parker | 03:31:39 | -31.9 | Dark | Down | 35.2 | 64.6 | Up | 03:27:18 - 03:36:01 | 1860 |
| Calipatria | 03:31:43 | -30.8 | Dark | Down | 33.9 | 63.6 | Up | 03:27:22 - 03:36:05 | 1811 |
| Yuma | 03:31:42 | -31.5 | Dark | Down | 34.3 | 63.6 | Up | 03:27:21 - 03:36:04 | 1730 |
| George/Scottsdale | 03:31:35 | -33.9 | Dark | Down | 36.9 | 65.1 | Up | 03:27:14 - 03:35:57 | 1718 |
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 05UN524, (2023/01/22 03:28UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 14.45 167 PPM 073799 08:32:54.8 +38:00:55 5.9 0.65 166 PPM 073862 08:38:17.5 +37:01:13 7.4 0.92 167 PPM 073846 08:37:12.1 +37:56:05 9.4 0.24 166 PPM 073829 08:35:49.4 +37:54:18 11.0 0.09 166 05UN524 08:36:04.8 +37:49:48 15.7 166 Positions are for J2000
Event circumstances last updated at 2022/03/12 01:51:50 UT
Marc W. Buie, Southwest Research Institute