Event between (60558) Echeclus and star GA1080:01952464 with event index number of 2336899
Geocentric closest approach at 2022/01/27 10:58:48 UTC
J2000 position of star is 06:23:52.3 +18:46:59
Equinox of date position of star is 06:25:10.0 +18:46:12
Stellar brightness G=13.8,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 146 degrees from the moon.
Moon is 29% illuminated.
TNO apparent brightness V=19.8
[RECON map]
TNO is 11.2 AU from the Sun
and 10.3 AU from the Earth.
The TNO is moving 18.0
km/sec on the sky relative to the star, or,
8.7 arcsec/hr.
The 1-sigma error in the time of the event is 22 seconds.
The 1-sigma cross-track error in the shadow position is
376 km.
The sky-plane scale is
7495.6 km/arcsec.
The TNO has an absolute magnitude Hv=9.2
Diameter=88.3 km assuming a 5% albedo -- 4.9 sec chord
Diameter=36.1 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
Star training set for 60558, (2022/01/27 10:59UT) Object RA Dec mag sep mel Betelgeuse 05:56:22.1 +07:24:34 0.4 13.34 149 Alhena 06:38:59.2 +16:22:43 1.9 4.07 142 PPM 122270 06:20:18.8 +17:18:53 6.1 1.86 147 PPM 122361 06:23:47.5 +18:48:44 8.5 0.33 146 PPM 122425 06:26:10.5 +18:36:21 9.8 0.29 146 60558 06:25:10.2 +18:46:12 13.8 146 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 22.8 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 | 10:55:42 | -35.8 | Dark | Up | 15.5 | 280.9 | Really Low | 10:53:20 - 10:58:04 | 4055 |
| Kamloops | 10:55:41 | -44.6 | Dark | Down | 24.3 | 270.4 | Low | 10:53:19 - 10:58:03 | 3636 |
| Kelowna | 10:55:36 | -44.5 | Dark | Down | 23.7 | 271.4 | Low | 10:53:14 - 10:57:58 | 3605 |
| Peachland | 10:55:36 | -44.7 | Dark | Down | 23.9 | 271.2 | Low | 10:53:14 - 10:57:58 | 3590 |
| Summerland | 10:55:35 | -44.8 | Dark | Down | 23.9 | 271.4 | Low | 10:53:13 - 10:57:57 | 3583 |
| Penticton | 10:55:35 | -44.7 | Dark | Down | 23.8 | 271.5 | Low | 10:53:13 - 10:57:57 | 3581 |
| Oliver | 10:55:33 | -44.9 | Dark | Down | 23.8 | 271.6 | Low | 10:53:11 - 10:57:55 | 3558 |
| Anarchist Mountain Observatory | 10:55:32 | -44.9 | Dark | Down | 23.6 | 271.8 | Low | 10:53:10 - 10:57:54 | 3552 |
| Tonasket | 10:55:31 | -45.1 | Dark | Down | 23.7 | 271.9 | Low | 10:53:09 - 10:57:53 | 3529 |
| Okanogan | 10:55:29 | -45.3 | Dark | Down | 23.8 | 271.9 | Low | 10:53:07 - 10:57:51 | 3503 |
| Brewster | 10:55:28 | -45.6 | Dark | Down | 23.9 | 271.9 | Low | 10:53:06 - 10:57:50 | 3479 |
| Manson/Chelan | 10:55:27 | -45.9 | Dark | Down | 24.1 | 271.7 | Low | 10:53:05 - 10:57:49 | 3456 |
| Wenatchee | 10:55:25 | -46.2 | Dark | Down | 24.3 | 271.8 | Low | 10:53:03 - 10:57:47 | 3419 |
| Victoria | 10:55:34 | -47.4 | Dark | Down | 26.3 | 269.0 | Low | 10:53:12 - 10:57:56 | 3417 |
| Ellensburg | 10:55:23 | -46.5 | Dark | Down | 24.4 | 271.8 | Low | 10:53:01 - 10:57:45 | 3384 |
| PNWRO | 10:55:17 | -46.0 | Dark | Down | 23.2 | 273.4 | Low | 10:52:55 - 10:57:39 | 3358 |
| Yakima | 10:55:21 | -46.7 | Dark | Down | 24.4 | 272.0 | Low | 10:52:59 - 10:57:43 | 3355 |
| Toppenish/White Swan | 10:55:20 | -46.7 | Dark | Down | 24.3 | 272.2 | Low | 10:52:58 - 10:57:42 | 3345 |
| Dunrhomin | 10:54:44 | -38.0 | Dark | Up | 12.6 | 284.1 | Really Low | 10:52:22 - 10:57:06 | 3320 |
| Goldendale | 10:55:18 | -47.2 | Dark | Down | 24.6 | 272.2 | Low | 10:52:56 - 10:57:40 | 3294 |
| The Dalles | 10:55:17 | -47.6 | Dark | Down | 24.8 | 272.0 | Low | 10:52:55 - 10:57:39 | 3268 |
| Maupin | 10:55:15 | -47.7 | Dark | Down | 24.7 | 272.3 | Low | 10:52:53 - 10:57:37 | 3241 |
| Sisters | 10:55:12 | -48.4 | Dark | Down | 25.1 | 272.3 | Low | 10:52:50 - 10:57:34 | 3164 |
| Bend | 10:55:10 | -48.3 | Dark | Down | 24.9 | 272.6 | Low | 10:52:48 - 10:57:32 | 3153 |
| Oregon Observatory | 10:55:10 | -48.5 | Dark | Down | 24.9 | 272.6 | Low | 10:52:48 - 10:57:32 | 3137 |
| North Lake | 10:55:06 | -48.4 | Dark | Down | 24.5 | 273.2 | Low | 10:52:44 - 10:57:28 | 3104 |
| Lakeview | 10:55:01 | -48.5 | Dark | Up | 24.1 | 274.1 | Low | 10:52:39 - 10:57:23 | 3040 |
| Chiloquin | 10:55:04 | -49.3 | Dark | Down | 25.2 | 272.9 | Low | 10:52:42 - 10:57:26 | 3027 |
| Klamath Falls | 10:55:03 | -49.4 | Dark | Down | 25.1 | 273.1 | Low | 10:52:41 - 10:57:25 | 3003 |
| Cedarville | 10:54:58 | -48.6 | Dark | Up | 23.9 | 274.5 | Low | 10:52:36 - 10:57:20 | 2995 |
| Fall River/Burney | 10:54:57 | -49.7 | Dark | Down | 24.8 | 273.9 | Low | 10:52:35 - 10:57:19 | 2922 |
| Susanville | 10:54:53 | -49.4 | Dark | Up | 24.2 | 274.6 | Low | 10:52:31 - 10:57:15 | 2895 |
| Gimple | 10:54:52 | -49.6 | Dark | Up | 24.3 | 274.6 | Low | 10:52:30 - 10:57:14 | 2867 |
| Greenville | 10:54:52 | -49.7 | Dark | Up | 24.4 | 274.6 | Low | 10:52:30 - 10:57:14 | 2864 |
| Portola | 10:54:50 | -49.5 | Dark | Up | 24.0 | 275.0 | Low | 10:52:28 - 10:57:12 | 2853 |
| Reno | 10:54:48 | -49.1 | Dark | Up | 23.5 | 275.5 | Low | 10:52:26 - 10:57:10 | 2851 |
| Quincy | 10:54:51 | -49.8 | Dark | Up | 24.4 | 274.7 | Low | 10:52:29 - 10:57:13 | 2848 |
| Yerington | 10:54:45 | -48.8 | Dark | Up | 22.9 | 276.2 | Low | 10:52:23 - 10:57:07 | 2826 |
| Carson City | 10:54:47 | -49.2 | Dark | Up | 23.4 | 275.7 | Low | 10:52:25 - 10:57:09 | 2823 |
| Tonopah | 10:54:40 | -47.6 | Dark | Up | 21.3 | 277.7 | Low | 10:52:18 - 10:57:02 | 2809 |
| Gardnerville | 10:54:46 | -49.2 | Dark | Up | 23.4 | 275.8 | Low | 10:52:24 - 10:57:08 | 2805 |
| Hawthorne | 10:54:43 | -48.5 | Dark | Up | 22.5 | 276.7 | Low | 10:52:21 - 10:57:05 | 2804 |
| Lee Vining | 10:54:41 | -49.1 | Dark | Up | 22.8 | 276.6 | Low | 10:52:19 - 10:57:03 | 2745 |
| Indian Springs | 10:54:32 | -46.8 | Dark | Up | 19.9 | 279.1 | Really Low | 10:52:10 - 10:56:54 | 2736 |
| Beatty | 10:54:34 | -47.6 | Dark | Up | 20.8 | 278.3 | Low | 10:52:12 - 10:56:56 | 2730 |
| Bishop | 10:54:38 | -48.7 | Dark | Up | 22.2 | 277.3 | Low | 10:52:16 - 10:57:00 | 2718 |
| Henderson | 10:54:29 | -46.4 | Dark | Up | 19.3 | 279.6 | Really Low | 10:52:07 - 10:56:51 | 2713 |
| Patrick | 10:54:26 | -45.6 | Dark | Up | 18.3 | 280.4 | Really Low | 10:52:04 - 10:56:48 | 2696 |
| Kingman/Dolan Springs | 10:54:25 | -45.8 | Dark | Up | 18.4 | 280.4 | Really Low | 10:52:03 - 10:56:47 | 2672 |
| Laughlin/Bullhead City | 10:54:25 | -46.2 | Dark | Up | 18.8 | 280.1 | Really Low | 10:52:03 - 10:56:47 | 2654 |
| Mohave Valley | 10:54:24 | -46.3 | Dark | Up | 18.8 | 280.2 | Really Low | 10:52:02 - 10:56:46 | 2632 |
| George/Scottsdale | 10:54:18 | -44.2 | Dark | Up | 16.4 | 282.0 | Really Low | 10:51:56 - 10:56:40 | 2619 |
| Lake Havasu City | 10:54:23 | -46.1 | Dark | Up | 18.5 | 280.5 | Really Low | 10:52:01 - 10:56:45 | 2607 |
| Parker | 10:54:21 | -46.2 | Dark | Up | 18.4 | 280.6 | Really Low | 10:51:59 - 10:56:43 | 2578 |
| Idyllwild | 10:54:21 | -48.2 | Dark | Up | 20.3 | 279.5 | Low | 10:51:59 - 10:56:43 | 2470 |
| Calipatria | 10:54:18 | -47.4 | Dark | Up | 19.3 | 280.3 | Really Low | 10:51:56 - 10:56:40 | 2455 |
| Yuma | 10:54:16 | -46.7 | Dark | Up | 18.5 | 280.9 | Really Low | 10:51:54 - 10:56:38 | 2446 |
| Wildwood | 10:54:25 | -49.7 | Dark | Up | 21.9 | 278.4 | Low | 10:52:03 - 10:56:47 | 2441 |
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, (2022/01/27 10:59UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 13.34 149 Alhena 06:37:42.8 +16:23:57 1.9 4.07 142 PPM 122270 06:19:01.8 +17:19:31 6.1 1.86 147 PPM 122361 06:22:29.6 +18:49:29 8.5 0.33 146 PPM 122425 06:24:52.7 +18:37:10 9.8 0.29 146 60558 06:23:52.3 +18:46:59 13.8 146 Positions are for J2000
Event circumstances last updated at 2022/01/10 00:03:12 UT
Marc W. Buie, Southwest Research Institute