Event between (60558) Echeclus and star GA1080:02075765 with event index number of 2336869
Geocentric closest approach at 2022/01/06 08:35:09 UTC
J2000 position of star is 06:29:43.6 +18:39:07
Equinox of date position of star is 06:31:01.0 +18:38:09
Stellar brightness G=9.9,
use SENSEUP=2 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 122 degrees from the moon.
Moon is 17% illuminated.
TNO apparent brightness V=19.6
[RECON map]
TNO is 11.1 AU from the Sun
and 10.2 AU from the Earth.
The TNO is moving 22.1
km/sec on the sky relative to the star, or,
10.8 arcsec/hr.
The 1-sigma error in the time of the event is 18 seconds.
The 1-sigma cross-track error in the shadow position is
369 km.
The sky-plane scale is
7372.4 km/arcsec.
The TNO has an absolute magnitude Hv=9.2
Diameter=88.3 km assuming a 5% albedo -- 4.0 sec chord
Diameter=36.1 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 60558, (2022/01/06 08:35UT) Object RA Dec mag sep mel Betelgeuse 05:56:21.9 +07:24:34 0.4 14.04 111 Alhena 06:38:59.0 +16:22:43 1.9 2.95 123 18Nu Gem 06:30:16.2 +20:11:46 4.1 1.57 121 PPM 122525 06:29:35.3 +18:27:11 8.5 0.39 121 PPM 122589 06:32:02.6 +18:33:34 10.1 0.25 122 60558 06:31:01.1 +18:38:09 9.9 122 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 25.8 km
RECON observability=1.0 and success probability=72.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 08:33:51 | -56.2 | Dark | Down | 48.7 | 227.7 | Up | 08:31:51 - 08:35:51 | 1699 |
| Kamloops | 08:34:29 | -61.3 | Dark | Down | 55.3 | 208.7 | Up | 08:32:29 - 08:36:29 | 1377 |
| Kelowna | 08:34:25 | -62.0 | Dark | Down | 55.8 | 210.6 | Up | 08:32:25 - 08:36:25 | 1313 |
| Peachland | 08:34:26 | -62.1 | Dark | Down | 55.9 | 210.3 | Up | 08:32:26 - 08:36:26 | 1300 |
| Summerland | 08:34:25 | -62.2 | Dark | Down | 56.0 | 210.5 | Up | 08:32:25 - 08:36:25 | 1287 |
| Penticton | 08:34:25 | -62.3 | Dark | Down | 56.1 | 210.7 | Up | 08:32:25 - 08:36:25 | 1282 |
| Oliver | 08:34:25 | -62.6 | Dark | Down | 56.4 | 211.0 | Up | 08:32:25 - 08:36:25 | 1250 |
| Anarchist Mountain Observatory | 08:34:24 | -62.8 | Dark | Down | 56.5 | 211.4 | Up | 08:32:24 - 08:36:24 | 1237 |
| Tonasket | 08:34:23 | -63.1 | Dark | Down | 56.7 | 211.6 | Up | 08:32:23 - 08:36:23 | 1207 |
| Okanogan | 08:34:23 | -63.4 | Dark | Down | 57.1 | 211.6 | Up | 08:32:23 - 08:36:23 | 1174 |
| Brewster | 08:34:24 | -63.7 | Dark | Down | 57.4 | 211.5 | Up | 08:32:24 - 08:36:24 | 1146 |
| Victoria | 08:34:36 | -63.8 | Dark | Down | 58.1 | 205.2 | Up | 08:32:36 - 08:36:36 | 1144 |
| Manson/Chelan | 08:34:24 | -64.0 | Dark | Down | 57.7 | 211.1 | Up | 08:32:24 - 08:36:24 | 1122 |
| Wenatchee | 08:34:25 | -64.5 | Dark | Down | 58.2 | 211.2 | Up | 08:32:25 - 08:36:25 | 1075 |
| Ellensburg | 08:34:24 | -64.9 | Dark | Down | 58.6 | 211.1 | Up | 08:32:24 - 08:36:24 | 1033 |
| Yakima | 08:34:24 | -65.3 | Dark | Down | 58.9 | 211.5 | Up | 08:32:24 - 08:36:24 | 994 |
| Pasco | 08:34:19 | -65.4 | Dark | Down | 58.7 | 214.2 | Up | 08:32:19 - 08:36:19 | 980 |
| Toppenish/White Swan | 08:34:23 | -65.5 | Dark | Down | 59.1 | 211.9 | Up | 08:32:23 - 08:36:23 | 976 |
| PNWRO | 08:34:18 | -65.5 | Dark | Down | 58.8 | 214.8 | Up | 08:32:18 - 08:36:18 | 960 |
| Goldendale | 08:34:24 | -66.1 | Dark | Down | 59.7 | 211.7 | Up | 08:32:24 - 08:36:24 | 918 |
| The Dalles | 08:34:25 | -66.4 | Dark | Down | 60.0 | 211.3 | Up | 08:32:25 - 08:36:25 | 891 |
| Maupin | 08:34:24 | -66.8 | Dark | Down | 60.3 | 211.8 | Up | 08:32:24 - 08:36:24 | 852 |
| Redmond | 08:34:23 | -67.7 | Dark | Down | 61.1 | 212.5 | Up | 08:32:23 - 08:36:23 | 764 |
| Sisters | 08:34:25 | -67.7 | Dark | Down | 61.3 | 211.8 | Up | 08:32:25 - 08:36:25 | 761 |
| Bend | 08:34:23 | -67.9 | Dark | Down | 61.4 | 212.5 | Up | 08:32:23 - 08:36:23 | 741 |
| Oregon Observatory | 08:34:24 | -68.1 | Dark | Down | 61.6 | 212.4 | Up | 08:32:24 - 08:36:24 | 722 |
| La Pine/Gilchrist | 08:34:24 | -68.3 | Dark | Down | 61.8 | 212.5 | Up | 08:32:24 - 08:36:24 | 702 |
| North Lake | 08:34:21 | -68.6 | Dark | Down | 61.9 | 214.0 | Up | 08:32:21 - 08:36:21 | 667 |
| Dunrhomin | 08:33:23 | -64.4 | Dark | Down | 55.3 | 240.9 | Up | 08:31:23 - 08:35:23 | 631 |
| Paisley | 08:34:19 | -69.1 | Dark | Down | 62.2 | 215.3 | Up | 08:32:19 - 08:36:19 | 617 |
| Chiloquin | 08:34:23 | -69.4 | Dark | Down | 62.8 | 213.0 | Up | 08:32:23 - 08:36:23 | 588 |
| Lakeview | 08:34:18 | -69.5 | Dark | Down | 62.5 | 216.2 | Up | 08:32:18 - 08:36:18 | 570 |
| Klamath Falls | 08:34:23 | -69.8 | Dark | Down | 63.1 | 213.5 | Up | 08:32:23 - 08:36:23 | 555 |
| Cedarville | 08:34:16 | -70.1 | Dark | Down | 63.0 | 217.2 | Up | 08:32:16 - 08:36:16 | 507 |
| Fall River/Burney | 08:34:20 | -70.8 | Dark | Down | 63.9 | 215.6 | Up | 08:32:20 - 08:36:20 | 442 |
| Susanville | 08:34:17 | -71.2 | Dark | Down | 64.1 | 217.7 | Up | 08:32:17 - 08:36:17 | 389 |
| Gimple | 08:34:17 | -71.6 | Dark | Down | 64.4 | 217.7 | Up | 08:32:17 - 08:36:17 | 358 |
| Greenville | 08:34:17 | -71.6 | Dark | Down | 64.4 | 217.5 | Up | 08:32:17 - 08:36:17 | 357 |
| Quincy | 08:34:17 | -71.8 | Dark | Down | 64.6 | 217.8 | Up | 08:32:17 - 08:36:17 | 337 |
| Portola | 08:34:15 | -71.8 | Dark | Down | 64.5 | 218.8 | Up | 08:32:15 - 08:36:15 | 331 |
| Reno | 08:34:13 | -71.8 | Dark | Down | 64.4 | 220.4 | Up | 08:32:13 - 08:36:13 | 313 |
| Carson City | 08:34:12 | -72.2 | Dark | Down | 64.6 | 220.9 | Up | 08:32:12 - 08:36:12 | 277 |
| Yerington | 08:34:09 | -72.2 | Dark | Down | 64.4 | 222.3 | Up | 08:32:09 - 08:36:09 | 266 |
| Gardnerville | 08:34:11 | -72.4 | Dark | Down | 64.8 | 221.3 | Up | 08:32:11 - 08:36:11 | 253 |
| Hawthorne | 08:34:07 | -72.4 | Dark | Down | 64.5 | 224.0 | Up | 08:32:07 - 08:36:07 | 227 |
| Tonopah | 08:34:01 | -72.3 | Dark | Down | 64.1 | 227.1 | Up | 08:32:01 - 08:36:01 | 201 |
| Lee Vining | 08:34:08 | -73.1 | Dark | Down | 65.2 | 223.9 | Up | 08:32:08 - 08:36:08 | 163 |
| Bishop | 08:34:05 | -73.3 | Dark | Down | 65.2 | 226.1 | Up | 08:32:05 - 08:36:05 | 112 |
| Beatty | 08:33:58 | -73.1 | Dark | Down | 64.6 | 229.6 | Up | 08:31:58 - 08:35:58 | 90 |
| Indian Springs | 08:33:53 | -72.8 | Dark | Down | 64.1 | 231.9 | Up | 08:31:53 - 08:35:53 | 74 |
| Henderson | 08:33:50 | -72.9 | Dark | Down | 64.0 | 233.9 | Up | 08:31:50 - 08:35:50 | 31 |
| Patrick | 08:33:45 | -72.7 | Dark | Down | 63.6 | 236.6 | Up | 08:31:45 - 08:35:45 | -14 |
| Kingman/Dolan Springs | 08:33:45 | -73.0 | Dark | Down | 63.9 | 236.7 | Up | 08:31:45 - 08:35:45 | -40 |
| Laughlin/Bullhead City | 08:33:47 | -73.3 | Dark | Down | 64.2 | 236.0 | Up | 08:31:47 - 08:35:47 | -51 |
| Mohave Valley | 08:33:47 | -73.5 | Dark | Down | 64.4 | 236.5 | Up | 08:31:47 - 08:35:47 | -79 |
| Lake Havasu City | 08:33:45 | -73.6 | Dark | Down | 64.4 | 237.5 | Up | 08:31:45 - 08:35:45 | -116 |
| CPSLO | 08:34:11 | -76.0 | Dark | Down | 67.9 | 225.3 | Up | 08:32:11 - 08:36:11 | -134 |
| George/Scottsdale | 08:33:35 | -72.6 | Dark | Down | 63.1 | 242.3 | Up | 08:31:35 - 08:35:35 | -152 |
| Parker | 08:33:45 | -73.9 | Dark | Down | 64.6 | 238.2 | Up | 08:31:45 - 08:35:45 | -152 |
| Blythe | 08:33:45 | -74.4 | Dark | Down | 65.1 | 238.7 | Up | 08:31:45 - 08:35:45 | -212 |
| Wildwood | 08:34:01 | -76.2 | Dark | Down | 67.5 | 231.3 | Up | 08:32:01 - 08:36:01 | -229 |
| Idyllwild | 08:33:53 | -75.5 | Dark | Down | 66.5 | 235.2 | Up | 08:31:53 - 08:35:53 | -235 |
| Calipatria | 08:33:48 | -75.3 | Dark | Down | 66.0 | 238.2 | Up | 08:31:48 - 08:35:48 | -279 |
| Yuma | 08:33:44 | -75.0 | Dark | Down | 65.6 | 240.4 | Up | 08:31:44 - 08:35:44 | -309 |
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, (2022/01/06 08:35UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 14.04 111 Alhena 06:37:42.8 +16:23:57 1.9 2.95 123 18Nu Gem 06:28:57.8 +20:12:43 4.1 1.57 121 PPM 122525 06:28:17.8 +18:28:07 8.5 0.39 121 PPM 122589 06:30:45.1 +18:34:34 10.1 0.25 122 60558 06:29:43.6 +18:39:07 9.9 121 Positions are for J2000
Event circumstances last updated at 2021/12/18 01:45:24 UT
Marc W. Buie, Southwest Research Institute