Event between (60558) Echeclus and star GA1080:02783081 with event index number of 2337447
Geocentric closest approach at 2024/04/07 06:52:40 UTC
J2000 position of star is 07:23:27.7 +18:16:18
Equinox of date position of star is 07:24:52.1 +18:13:24
Stellar brightness G=13.6,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 113 degrees from the moon.
Moon is 3% illuminated.
Apparent brightness V=20.7
[RECON map]
Object is 12.8 AU from the Sun
and 12.8 AU from the Earth.
Apparent velocity is 5.8
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 85 seconds.
The 1-sigma cross-track error in the shadow position is
466 km.
The sky-plane scale is
9250.6 km/arcsec.
The object has an absolute magnitude Hv=9.2
Diameter=88.3 km assuming a 5% albedo -- 15.1 sec chord
Diameter=36.1 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is CENTAURR
Star training set for 60558, (2024/04/07 06:53UT) Object RA Dec mag sep mel Pollux 07:46:48.0 +27:57:56 1.1 10.97 116 61 Gem 07:28:22.0 +20:12:25 6.2 2.15 113 PPM 123924 07:24:06.2 +17:59:43 8.4 0.29 112 PPM 123943 07:24:46.4 +18:15:47 9.5 0.05 112 60558 07:24:52.3 +18:13:23 13.6 113 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
5.0 sigma about the mid-time.
The median site spacing is 0.0 km
RECON observability=0.8 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) |
| Sleaford | 07:06:42 | -30.9 | Dark | Down | 16.8 | 278.4 | Really Low | 06:59:05 - 07:14:19 | 3008 |
| Kamloops | 07:06:14 | -31.0 | Dark | Down | 25.8 | 267.7 | Low | 06:58:37 - 07:13:51 | 2629 |
| Kelowna | 07:06:26 | -31.9 | Dark | Down | 25.2 | 268.8 | Low | 06:58:49 - 07:14:03 | 2568 |
| Peachland | 07:06:28 | -32.0 | Dark | Down | 25.4 | 268.7 | Low | 06:58:51 - 07:14:05 | 2553 |
| Summerland | 07:06:28 | -32.1 | Dark | Down | 25.3 | 268.8 | Low | 06:58:51 - 07:14:05 | 2541 |
| Penticton | 07:06:29 | -32.2 | Dark | Down | 25.2 | 268.9 | Low | 06:58:52 - 07:14:06 | 2536 |
| Oliver | 07:06:35 | -32.6 | Dark | Down | 25.2 | 269.1 | Low | 06:58:58 - 07:14:12 | 2503 |
| Anarchist Mountain Observatory | 07:06:35 | -32.8 | Dark | Down | 25.1 | 269.4 | Low | 06:58:58 - 07:14:12 | 2491 |
| Okanogan | 07:06:41 | -33.3 | Dark | Down | 25.2 | 269.5 | Low | 06:59:04 - 07:14:18 | 2426 |
| Brewster | 07:06:44 | -33.6 | Dark | Down | 25.4 | 269.5 | Low | 06:59:07 - 07:14:21 | 2398 |
| Victoria | 07:06:20 | -32.4 | Dark | Down | 27.8 | 266.4 | Low | 06:58:43 - 07:13:57 | 2382 |
| Manson/Chelan | 07:06:44 | -33.7 | Dark | Down | 25.6 | 269.3 | Low | 06:59:07 - 07:14:21 | 2372 |
| Wenatchee | 07:06:47 | -34.1 | Dark | Down | 25.7 | 269.4 | Low | 06:59:10 - 07:14:24 | 2324 |
| Ellensburg | 07:06:50 | -34.5 | Dark | Down | 25.9 | 269.5 | Low | 06:59:13 - 07:14:27 | 2281 |
| Yakima | 07:06:53 | -34.9 | Dark | Down | 25.9 | 269.7 | Low | 06:59:16 - 07:14:30 | 2242 |
| Toppenish/White Swan | 07:06:58 | -35.1 | Dark | Down | 25.8 | 269.9 | Low | 06:59:21 - 07:14:35 | 2224 |
| PNWRO | 07:07:08 | -35.8 | Dark | Down | 24.7 | 271.2 | Low | 06:59:31 - 07:14:45 | 2214 |
| The Dalles | 07:07:00 | -35.7 | Dark | Down | 26.3 | 269.7 | Low | 06:59:23 - 07:14:37 | 2135 |
| Maupin | 07:07:05 | -36.1 | Dark | Down | 26.2 | 270.0 | Low | 06:59:28 - 07:14:42 | 2097 |
| Sisters | 07:07:11 | -36.8 | Dark | Down | 26.5 | 270.1 | Low | 06:59:34 - 07:14:48 | 2003 |
| Bend | 07:07:14 | -37.1 | Dark | Down | 26.3 | 270.4 | Low | 06:59:37 - 07:14:51 | 1984 |
| Oregon Observatory | 07:07:14 | -37.3 | Dark | Down | 26.4 | 270.4 | Low | 06:59:37 - 07:14:51 | 1964 |
| Dunrhomin | 07:08:49 | -42.7 | Dark | Down | 13.7 | 282.5 | Really Low | 07:01:12 - 07:16:26 | 1954 |
| Nikitin | 07:08:50 | -42.9 | Dark | Down | 13.7 | 282.5 | Really Low | 07:01:13 - 07:16:27 | 1936 |
| CU-SBO | 07:08:49 | -42.9 | Dark | Down | 13.8 | 282.5 | Really Low | 07:01:12 - 07:16:26 | 1928 |
| Chiloquin | 07:07:25 | -38.4 | Dark | Down | 26.7 | 270.8 | Low | 06:59:48 - 07:15:02 | 1827 |
| Klamath Falls | 07:07:28 | -38.8 | Dark | Down | 26.6 | 271.1 | Low | 06:59:51 - 07:15:05 | 1794 |
| Cedarville | 07:07:44 | -39.8 | Dark | Down | 25.4 | 272.5 | Low | 07:00:07 - 07:15:21 | 1753 |
| Fall River/Burney | 07:07:42 | -40.0 | Dark | Down | 26.3 | 271.9 | Low | 07:00:05 - 07:15:19 | 1683 |
| Gimple | 07:07:51 | -41.0 | Dark | Down | 25.8 | 272.8 | Low | 07:00:14 - 07:15:28 | 1601 |
| Greenville | 07:07:50 | -41.0 | Dark | Down | 25.9 | 272.7 | Low | 07:00:13 - 07:15:27 | 1600 |
| Quincy | 07:07:52 | -41.2 | Dark | Down | 25.8 | 272.8 | Low | 07:00:15 - 07:15:29 | 1579 |
| Portola | 07:07:56 | -41.4 | Dark | Down | 25.5 | 273.2 | Low | 07:00:19 - 07:15:33 | 1575 |
| Reno | 07:08:02 | -41.8 | Dark | Down | 24.9 | 273.7 | Low | 07:00:25 - 07:15:39 | 1561 |
| Carson City | 07:08:05 | -42.2 | Dark | Down | 24.9 | 273.9 | Low | 07:00:28 - 07:15:42 | 1525 |
| Yerington | 07:08:10 | -42.5 | Dark | Down | 24.3 | 274.4 | Low | 07:00:33 - 07:15:47 | 1517 |
| Gardnerville | 07:08:07 | -42.4 | Dark | Down | 24.8 | 274.0 | Low | 07:00:30 - 07:15:44 | 1501 |
| Hawthorne | 07:08:15 | -43.1 | Dark | Down | 23.9 | 274.9 | Low | 07:00:38 - 07:15:52 | 1481 |
| Lee Vining | 07:08:17 | -43.5 | Dark | Down | 24.2 | 274.9 | Low | 07:00:40 - 07:15:54 | 1414 |
| Bishop | 07:08:27 | -44.2 | Dark | Down | 23.5 | 275.6 | Low | 07:00:50 - 07:16:04 | 1367 |
| Beatty | 07:08:38 | -45.0 | Dark | Down | 22.2 | 276.7 | Low | 07:01:01 - 07:16:15 | 1354 |
| Patrick | 07:09:02 | -47.0 | Dark | Down | 19.6 | 279.0 | Really Low | 07:01:25 - 07:16:39 | 1267 |
| Laughlin/Bullhead City | 07:09:00 | -47.1 | Dark | Down | 20.1 | 278.7 | Low | 07:01:23 - 07:16:37 | 1225 |
| Lake Havasu City | 07:09:06 | -47.9 | Dark | Down | 19.8 | 279.0 | Really Low | 07:01:29 - 07:16:43 | 1162 |
| George/Scottsdale | 07:09:22 | -49.0 | Dark | Down | 17.6 | 280.6 | Really Low | 07:01:45 - 07:16:59 | 1141 |
| Idyllwild | 07:09:00 | -48.1 | Dark | Down | 21.6 | 278.1 | Low | 07:01:23 - 07:16:37 | 1030 |
| Wildwood | 07:08:48 | -47.3 | Dark | Down | 23.3 | 276.9 | Low | 07:01:11 - 07:16:25 | 1026 |
| Calipatria | 07:09:10 | -49.0 | Dark | Down | 20.5 | 278.9 | Low | 07:01:33 - 07:16:47 | 994 |
| Yuma | 07:09:17 | -49.6 | Dark | Down | 19.7 | 279.5 | Really Low | 07:01:40 - 07:16:54 | 970 |
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 60558, (2024/04/07 06:53UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 10.97 116 61 Gem 07:26:56.3 +20:15:27 6.2 2.15 113 PPM 123924 07:22:41.8 +18:02:36 8.4 0.29 112 PPM 123943 07:23:21.7 +18:18:41 9.5 0.05 112 60558 07:23:27.7 +18:16:18 13.6 112 Positions are for J2000
Event circumstances last updated at 2024/03/19 03:34:53 UT
Marc W. Buie, Southwest Research Institute