Event between (69987) 98WA25 and star GA1120:01318576 with event index number of 1395992
Geocentric closest approach at 2024/11/07 10:22:46 UTC
J2000 position of star is 05:36:30.6 +22:28:53
Equinox of date position of star is 05:37:53.9 +22:29:39
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 151 degrees from the moon.
Moon is 31% illuminated.
Apparent brightness V=23.4
[RECON map]
Object is 42.5 AU from the Sun
and 41.8 AU from the Earth.
Apparent velocity is 18.9
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 450 seconds.
The 1-sigma cross-track error in the shadow position is
1586 km.
The sky-plane scale is
30294.8 km/arcsec.
The object has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 12.2 sec chord
Diameter=93.5 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 69987, (2024/11/07 10:36UT) Object RA Dec mag sep mel Aldebaran 04:37:21.0 +16:33:27 0.8 15.47 135 Alnath 05:27:51.9 +28:37:34 1.6 6.54 149 PPM 094621 05:40:56.8 +21:46:29 6.4 0.99 151 PPM 094553 05:37:56.0 +22:00:22 7.5 0.49 151 PPM 094543 05:37:31.0 +22:27:24 9.9 0.12 151 69987 05:38:00.7 +22:29:43 15.4 151 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
2.0 sigma about the mid-time.
The median site spacing is 35.2 km
RECON observability=1.0 and success probability=34.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 10:21:54 | -35.0 | Dark | Down | 58.9 | 202.8 | Up | 10:06:54 - 10:36:54 | 1206 |
| Kamloops | 10:22:46 | -43.6 | Dark | Down | 61.8 | 176.7 | Up | 10:07:46 - 10:37:46 | 1085 |
| Kelowna | 10:22:43 | -43.5 | Dark | Down | 62.6 | 178.4 | Up | 10:07:43 - 10:37:43 | 1001 |
| Peachland | 10:22:44 | -43.7 | Dark | Down | 62.7 | 177.8 | Up | 10:07:44 - 10:37:44 | 992 |
| Summerland | 10:22:43 | -43.8 | Dark | Down | 62.9 | 178.0 | Up | 10:07:43 - 10:37:43 | 976 |
| Penticton | 10:22:43 | -43.7 | Dark | Down | 62.9 | 178.2 | Up | 10:07:43 - 10:37:43 | 969 |
| Oliver | 10:22:43 | -43.9 | Dark | Down | 63.3 | 178.2 | Up | 10:07:43 - 10:37:43 | 934 |
| Anarchist Mountain Observatory | 10:22:43 | -43.9 | Dark | Down | 63.5 | 178.6 | Up | 10:07:43 - 10:37:43 | 917 |
| Victoria | 10:22:58 | -46.4 | Dark | Down | 63.7 | 170.2 | Up | 10:07:58 - 10:37:58 | 889 |
| Okanogan | 10:22:44 | -44.3 | Dark | Down | 64.1 | 178.1 | Up | 10:07:44 - 10:37:44 | 853 |
| Brewster | 10:22:45 | -44.6 | Dark | Down | 64.4 | 177.6 | Up | 10:07:45 - 10:37:45 | 827 |
| Manson/Chelan | 10:22:46 | -44.9 | Dark | Down | 64.6 | 176.8 | Up | 10:07:46 - 10:37:46 | 808 |
| Wenatchee | 10:22:47 | -45.2 | Dark | Down | 65.0 | 176.4 | Up | 10:07:47 - 10:37:47 | 761 |
| Ellensburg | 10:22:48 | -45.6 | Dark | Down | 65.4 | 175.9 | Up | 10:07:48 - 10:37:48 | 721 |
| Yakima | 10:22:48 | -45.8 | Dark | Down | 65.8 | 175.8 | Up | 10:07:48 - 10:37:48 | 679 |
| Toppenish/White Swan | 10:22:48 | -45.8 | Dark | Down | 66.1 | 176.1 | Up | 10:07:48 - 10:37:48 | 657 |
| PNWRO | 10:22:42 | -45.1 | Dark | Down | 66.5 | 179.5 | Up | 10:07:42 - 10:37:42 | 613 |
| The Dalles | 10:22:51 | -46.6 | Dark | Down | 66.8 | 174.2 | Up | 10:07:51 - 10:37:51 | 582 |
| Maupin | 10:22:51 | -46.8 | Dark | Down | 67.2 | 174.3 | Up | 10:07:51 - 10:37:51 | 538 |
| Sisters | 10:22:53 | -47.5 | Dark | Down | 68.1 | 172.9 | Up | 10:07:53 - 10:37:53 | 451 |
| Bend | 10:22:52 | -47.5 | Dark | Down | 68.3 | 173.5 | Up | 10:07:52 - 10:37:52 | 425 |
| Oregon Observatory | 10:22:53 | -47.6 | Dark | Down | 68.5 | 173.1 | Up | 10:07:53 - 10:37:53 | 408 |
| Chiloquin | 10:22:55 | -48.5 | Dark | Down | 69.7 | 171.6 | Up | 10:07:55 - 10:37:55 | 274 |
| Klamath Falls | 10:22:55 | -48.6 | Dark | Down | 70.1 | 171.7 | Up | 10:07:55 - 10:37:55 | 238 |
| Cedarville | 10:22:49 | -47.8 | Dark | Down | 70.9 | 175.8 | Up | 10:07:49 - 10:37:49 | 156 |
| Fall River/Burney | 10:22:54 | -48.9 | Dark | Down | 71.3 | 172.2 | Up | 10:07:54 - 10:37:54 | 112 |
| Greenville | 10:22:53 | -48.9 | Dark | Down | 72.2 | 173.2 | Up | 10:07:53 - 10:37:53 | 14 |
| Gimple | 10:22:52 | -48.9 | Dark | Down | 72.2 | 173.4 | Up | 10:07:52 - 10:37:52 | 14 |
| Dunrhomin | 10:21:43 | -37.6 | Dark | Down | 69.0 | 216.2 | Up | 10:06:43 - 10:36:43 | 6 |
| Quincy | 10:22:53 | -49.0 | Dark | Down | 72.4 | 173.1 | Up | 10:07:53 - 10:37:53 | -7 |
| Nikitin | 10:21:43 | -37.6 | Dark | Down | 69.1 | 216.5 | Up | 10:06:43 - 10:36:43 | -13 |
| CU-SBO | 10:21:44 | -37.7 | Dark | Down | 69.2 | 216.4 | Up | 10:06:44 - 10:36:44 | -21 |
| Portola | 10:22:51 | -48.7 | Dark | Down | 72.6 | 174.5 | Up | 10:07:51 - 10:37:51 | -23 |
| Reno | 10:22:48 | -48.4 | Dark | Down | 72.9 | 176.4 | Up | 10:07:48 - 10:37:48 | -54 |
| Carson City | 10:22:48 | -48.5 | Dark | Down | 73.3 | 176.4 | Up | 10:07:48 - 10:37:48 | -93 |
| Yerington | 10:22:45 | -48.1 | Dark | Down | 73.5 | 178.4 | Up | 10:07:45 - 10:37:45 | -116 |
| Gardnerville | 10:22:48 | -48.5 | Dark | Down | 73.5 | 176.5 | Up | 10:07:48 - 10:37:48 | -119 |
| Hawthorne | 10:22:43 | -47.9 | Dark | Down | 74.0 | 180.1 | Up | 10:07:43 - 10:37:43 | -168 |
| Lee Vining | 10:22:45 | -48.4 | Dark | Down | 74.5 | 178.5 | Up | 10:07:45 - 10:37:45 | -226 |
| Bishop | 10:22:42 | -48.1 | Dark | Down | 75.1 | 181.0 | Up | 10:07:42 - 10:37:42 | -294 |
| Beatty | 10:22:35 | -47.0 | Dark | Down | 75.5 | 186.9 | Up | 10:07:35 - 10:37:35 | -350 |
| Patrick | 10:22:21 | -45.2 | Dark | Down | 76.4 | 198.9 | Up | 10:07:21 - 10:37:21 | -518 |
| Laughlin/Bullhead City | 10:22:25 | -45.8 | Dark | Down | 76.8 | 196.5 | Up | 10:07:25 - 10:37:25 | -543 |
| Lake Havasu City | 10:22:24 | -45.7 | Dark | Down | 77.4 | 198.4 | Up | 10:07:24 - 10:37:24 | -617 |
| Wildwood | 10:22:44 | -49.2 | Dark | Down | 78.4 | 180.3 | Up | 10:07:44 - 10:37:44 | -646 |
| Idyllwild | 10:22:35 | -47.8 | Dark | Down | 78.6 | 189.0 | Up | 10:07:35 - 10:37:35 | -692 |
| George/Scottsdale | 10:22:12 | -43.9 | Dark | Down | 77.3 | 209.4 | Up | 10:07:12 - 10:37:12 | -705 |
| Calipatria | 10:22:29 | -47.0 | Dark | Down | 79.0 | 195.1 | Up | 10:07:29 - 10:37:29 | -763 |
| Yuma | 10:22:25 | -46.3 | Dark | Down | 79.2 | 199.9 | Up | 10:07:25 - 10:37:25 | -812 |
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 69987, (2024/11/07 10:36UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 15.47 135 Alnath 05:26:17.6 +28:36:23 1.6 6.54 149 PPM 094621 05:39:27.1 +21:45:46 6.4 0.99 151 PPM 094553 05:36:26.2 +21:59:33 7.5 0.49 151 PPM 094543 05:36:01.0 +22:26:34 9.9 0.12 151 69987 05:36:30.6 +22:28:53 15.4 151 Positions are for J2000
Event circumstances last updated at 2022/12/24 04:08:12 UT
Marc W. Buie, Southwest Research Institute