Event between (469708) 05GE187 and star GA0820:07809560 with event index number of 1375399
Geocentric closest approach at 2025/04/02 04:11:54 UTC
J2000 position of star is 18:08:10.3 -06:43:25
Equinox of date position of star is 18:09:21.0 -06:43:08
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 145 degrees from the moon.
Moon is 19% illuminated.
TNO apparent brightness V=22.1
TNO is 27.0 AU from the Sun
and 26.8 AU from the Earth.
The TNO is moving 9.4
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 139 seconds.
The 1-sigma cross-track error in the shadow position is
2097 km.
The TNO has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 19.6 sec chord
Diameter=75.3 km assuming a 30% albedo -- 8.0 sec chord
Dynamical classification is 3:2E
Star training set for 469708, (2025/04/02 04:12UT) Object RA Dec mag sep mel Antares 16:30:57.6 -26:29:09 0.9 30.67 175 60Bet Oph 17:44:43.3 +04:33:31 2.8 12.86 142 PPM 201392 18:07:29.9 -08:19:12 6.1 1.68 147 PPM 201423 18:09:30.5 -07:06:52 7.7 0.40 146 PPM 201424 18:09:31.0 -06:47:12 9.5 0.07 145 469708 18:09:32.0 -06:43:05 15.1 145 Positions are for equinox of date
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 469708, (2025/04/02 04:12UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 30.67 175 60Bet Oph 17:43:28.3 +04:34:06 2.8 12.86 142 PPM 201392 18:06:07.4 -08:19:27 6.1 1.68 147 PPM 201423 18:08:08.7 -07:07:12 7.7 0.40 146 PPM 201424 18:08:09.3 -06:47:31 9.5 0.07 145 469708 18:08:10.3 -06:43:25 15.1 145 Positions are for J2000
Event circumstances last updated at 2021/11/08 00:19:39 UT
Marc W. Buie, Southwest Research Institute