Event between (574372) 10JO179 and star GA0980:04620429 with event index number of 2518188
Geocentric closest approach at 2023/02/17 10:50:23 UTC
J2000 position of star is 17:00:22.0 +08:33:13
Equinox of date position of star is 17:01:24.8 +08:31:22
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 49 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=21.8
[RECON map]
TNO is 60.2 AU from the Sun
and 60.4 AU from the Earth.
The TNO is moving 18.6
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 129 seconds.
The 1-sigma cross-track error in the shadow position is
2501 km.
The sky-plane scale is
43818.8 km/arcsec.
The TNO has an absolute magnitude Hv=3.9
Diameter=986.3 km assuming a 5% albedo -- 53.1 sec chord
Diameter=402.7 km assuming a 30% albedo -- 21.7 sec chord
Dynamical classification is SCATNEAR
Star training set for 574372, (2023/02/17 10:50UT) Object RA Dec mag sep mel Antares 16:30:49.8 -26:28:53 0.9 35.78 38 Rasalhague 17:36:00.5 +12:32:42 2.1 9.39 47 27Kap Oph 16:58:45.9 +09:20:26 3.2 1.06 50 PPM 163320 16:59:13.1 +08:59:55 8.4 0.73 50 PPM 163382 17:01:51.1 +08:04:01 9.7 0.46 49 PPM 163378 17:01:36.0 +08:42:51 11.5 0.20 49 574372 17:01:28.7 +08:31:15 15.6 49 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 2.7 km
RECON observability=1.0 and success probability=8.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 10:50:39 | -43.0 | Dark | Down | 20.5 | 100.5 | Low | 10:39:24 - 11:01:54 | 1524 |
| Sisters | 10:50:16 | -44.5 | Dark | Down | 22.4 | 100.2 | Low | 10:39:01 - 11:01:31 | 1456 |
| The Dalles | 10:50:24 | -43.5 | Dark | Down | 22.5 | 101.1 | Low | 10:39:09 - 11:01:39 | 1453 |
| Oregon Observatory | 10:50:13 | -44.6 | Dark | Down | 22.6 | 100.1 | Low | 10:38:58 - 11:01:28 | 1449 |
| La Pine/Gilchrist | 10:50:12 | -44.8 | Dark | Down | 22.5 | 100.0 | Low | 10:38:57 - 11:01:27 | 1449 |
| Chiloquin | 10:50:06 | -45.6 | Dark | Down | 22.5 | 99.3 | Low | 10:38:51 - 11:01:21 | 1448 |
| Maupin | 10:50:22 | -43.7 | Dark | Down | 22.6 | 101.0 | Low | 10:39:07 - 11:01:37 | 1448 |
| Bend | 10:50:15 | -44.4 | Dark | Down | 22.6 | 100.3 | Low | 10:39:00 - 11:01:30 | 1446 |
| Goldendale | 10:50:25 | -43.2 | Dark | Down | 22.7 | 101.4 | Low | 10:39:10 - 11:01:40 | 1444 |
| Redmond | 10:50:16 | -44.2 | Dark | Down | 22.7 | 100.5 | Low | 10:39:01 - 11:01:31 | 1444 |
| Ellensburg | 10:50:33 | -42.3 | Dark | Down | 22.6 | 102.2 | Low | 10:39:18 - 11:01:48 | 1442 |
| Klamath Falls | 10:50:04 | -45.7 | Dark | Down | 22.6 | 99.2 | Low | 10:38:49 - 11:01:19 | 1441 |
| Yakima | 10:50:30 | -42.6 | Dark | Down | 22.7 | 102.0 | Low | 10:39:15 - 11:01:45 | 1441 |
| Wenatchee | 10:50:36 | -42.0 | Dark | Down | 22.7 | 102.5 | Low | 10:39:21 - 11:01:51 | 1437 |
| Toppenish/White Swan | 10:50:29 | -42.6 | Dark | Down | 22.9 | 102.0 | Low | 10:39:14 - 11:01:44 | 1435 |
| Manson/Chelan | 10:50:38 | -41.6 | Dark | Down | 22.7 | 102.9 | Low | 10:39:23 - 11:01:53 | 1434 |
| North Lake | 10:50:10 | -44.6 | Dark | Down | 23.1 | 100.3 | Low | 10:38:55 - 11:01:25 | 1426 |
| Peachland | 10:50:50 | -40.3 | Dark | Down | 22.6 | 104.0 | Low | 10:39:35 - 11:02:05 | 1425 |
| Brewster | 10:50:40 | -41.3 | Dark | Down | 22.9 | 103.2 | Low | 10:39:25 - 11:01:55 | 1424 |
| Summerland | 10:50:49 | -40.3 | Dark | Down | 22.7 | 104.0 | Low | 10:39:34 - 11:02:04 | 1422 |
| Penticton | 10:50:49 | -40.3 | Dark | Down | 22.7 | 104.1 | Low | 10:39:34 - 11:02:04 | 1419 |
| Oliver | 10:50:46 | -40.5 | Dark | Down | 22.8 | 103.9 | Low | 10:39:31 - 11:02:01 | 1419 |
| Okanogan | 10:50:42 | -41.0 | Dark | Down | 23.0 | 103.5 | Low | 10:39:27 - 11:01:57 | 1419 |
| Kelowna | 10:50:51 | -40.1 | Dark | Down | 22.7 | 104.3 | Low | 10:39:36 - 11:02:06 | 1417 |
| Tonasket | 10:50:44 | -40.7 | Dark | Down | 23.0 | 103.8 | Low | 10:39:29 - 11:01:59 | 1415 |
| Fall River/Burney | 10:49:57 | -46.1 | Dark | Down | 23.0 | 99.0 | Low | 10:38:42 - 11:01:12 | 1414 |
| Anarchist Mountain Observatory | 10:50:46 | -40.5 | Dark | Down | 23.0 | 104.0 | Low | 10:39:31 - 11:02:01 | 1414 |
| Clarence Fulton | 10:50:53 | -39.8 | Dark | Down | 22.7 | 104.6 | Low | 10:39:38 - 11:02:08 | 1412 |
| Paisley | 10:50:08 | -44.7 | Dark | Down | 23.4 | 100.3 | Low | 10:38:53 - 11:01:23 | 1409 |
| Lakeview | 10:50:05 | -44.9 | Dark | Down | 23.6 | 100.2 | Low | 10:38:50 - 11:01:20 | 1397 |
| Pasco | 10:50:29 | -41.9 | Dark | Down | 23.7 | 103.0 | Low | 10:39:14 - 11:01:44 | 1395 |
| PNWRO | 10:50:29 | -41.9 | Dark | Down | 23.9 | 103.0 | Low | 10:39:14 - 11:01:44 | 1387 |
| Greenville | 10:49:52 | -46.3 | Dark | Down | 23.5 | 98.9 | Low | 10:38:37 - 11:01:07 | 1386 |
| Gimple | 10:49:52 | -46.2 | Dark | Down | 23.5 | 98.9 | Low | 10:38:37 - 11:01:07 | 1384 |
| Quincy | 10:49:51 | -46.4 | Dark | Down | 23.5 | 98.8 | Low | 10:38:36 - 11:01:06 | 1383 |
| Cedarville | 10:50:01 | -45.1 | Dark | Down | 23.9 | 100.0 | Low | 10:38:46 - 11:01:16 | 1382 |
| Susanville | 10:49:54 | -46.0 | Dark | Down | 23.7 | 99.2 | Low | 10:38:39 - 11:01:09 | 1381 |
| Portola | 10:49:51 | -46.1 | Dark | Down | 23.9 | 99.1 | Low | 10:38:36 - 11:01:06 | 1366 |
| Reno | 10:49:50 | -45.8 | Dark | Down | 24.4 | 99.4 | Low | 10:38:35 - 11:01:05 | 1339 |
| Carson City | 10:49:49 | -46.0 | Dark | Down | 24.5 | 99.2 | Low | 10:38:34 - 11:01:04 | 1332 |
| Gardnerville | 10:49:46 | -46.1 | Dark | Down | 24.6 | 99.2 | Low | 10:38:31 - 11:01:01 | 1326 |
| Yerington | 10:49:47 | -45.6 | Dark | Down | 25.0 | 99.6 | Low | 10:38:32 - 11:01:02 | 1307 |
| Lee Vining | 10:49:42 | -46.1 | Dark | Down | 25.2 | 99.1 | Low | 10:38:27 - 11:00:57 | 1287 |
| Hawthorne | 10:49:46 | -45.5 | Dark | Down | 25.5 | 99.7 | Low | 10:38:31 - 11:01:01 | 1280 |
| CPSLO | 10:49:24 | -48.4 | Dark | Down | 24.3 | 96.9 | Low | 10:38:09 - 11:00:39 | 1278 |
| Bishop | 10:49:38 | -45.8 | Dark | Down | 25.8 | 99.3 | Low | 10:38:23 - 11:00:53 | 1248 |
| Tonopah | 10:49:44 | -44.7 | Dark | Down | 26.7 | 100.5 | Low | 10:38:29 - 11:00:59 | 1220 |
| Beatty | 10:49:38 | -44.8 | Dark | Down | 27.2 | 100.2 | Low | 10:38:23 - 11:00:53 | 1177 |
| Wildwood | 10:49:20 | -47.3 | Dark | Down | 26.1 | 97.6 | Low | 10:38:05 - 11:00:35 | 1173 |
| Indian Springs | 10:49:37 | -44.1 | Dark | Down | 28.1 | 100.7 | Low | 10:38:22 - 11:00:52 | 1128 |
| Idyllwild | 10:49:19 | -45.9 | Dark | Down | 27.7 | 98.5 | Low | 10:38:04 - 11:00:34 | 1093 |
| Henderson | 10:49:35 | -43.8 | Dark | Down | 28.8 | 100.9 | Low | 10:38:20 - 11:00:50 | 1087 |
| Laughlin/Bullhead City | 10:49:30 | -43.8 | Dark | Down | 29.2 | 100.7 | Low | 10:38:15 - 11:00:45 | 1047 |
| Mohave Valley | 10:49:29 | -43.9 | Dark | Down | 29.3 | 100.6 | Low | 10:38:14 - 11:00:44 | 1039 |
| Kingman/Dolan Springs | 10:49:31 | -43.4 | Dark | Down | 29.6 | 101.1 | Low | 10:38:16 - 11:00:46 | 1028 |
| Calipatria | 10:49:17 | -45.2 | Dark | Down | 28.8 | 98.9 | Low | 10:38:02 - 11:00:32 | 1027 |
| Patrick | 10:49:32 | -43.1 | Dark | Down | 29.8 | 101.3 | Low | 10:38:17 - 11:00:47 | 1026 |
| Lake Havasu City | 10:49:28 | -43.8 | Dark | Down | 29.6 | 100.5 | Low | 10:38:13 - 11:00:43 | 1018 |
| Parker | 10:49:25 | -43.9 | Dark | Down | 29.6 | 100.3 | Low | 10:38:10 - 11:00:40 | 1007 |
| Blythe | 10:49:21 | -44.3 | Dark | Down | 29.5 | 99.8 | Low | 10:38:06 - 11:00:36 | 1004 |
| Yuma | 10:49:17 | -44.6 | Dark | Down | 29.6 | 99.3 | Low | 10:38:02 - 11:00:32 | 977 |
| George/Scottsdale | 10:49:25 | -42.1 | Dark | Down | 31.7 | 101.6 | Up | 10:38:10 - 11:00:40 | 892 |
| Dunrhomin | 10:50:14 | -35.0 | Dark | Down | 35.2 | 111.0 | Up | 10:38:59 - 11:01:29 | 777 |
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 574372, (2023/02/17 10:50UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 35.78 38 Rasalhague 17:34:56.3 +12:33:31 2.1 9.39 47 27Kap Oph 16:57:39.7 +09:22:30 3.2 1.06 50 PPM 163320 16:58:06.7 +09:01:58 8.4 0.73 50 PPM 163382 17:00:44.2 +08:05:58 9.7 0.46 49 PPM 163378 17:00:29.5 +08:44:49 11.5 0.20 49 574372 17:00:22.0 +08:33:13 15.6 49 Positions are for J2000
Event circumstances last updated at 2021/10/16 01:16:28 UT
Marc W. Buie, Southwest Research Institute