Event between (469708) 05GE187 and star GA0820:07466899 with event index number of 1375421
Geocentric closest approach at 2025/06/21 03:04:46 UTC
J2000 position of star is 18:02:27.5 -06:07:41
Equinox of date position of star is 18:03:37.9 -06:07:35
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 118 degrees from the moon.
Moon is 25% illuminated.
TNO apparent brightness V=21.9
TNO is 26.9 AU from the Sun
and 26.0 AU from the Earth.
The TNO is moving 22.8
km/sec on the sky relative to the star, or,
4.4 arcsec/hr.
The 1-sigma error in the time of the event is 89 seconds.
The 1-sigma cross-track error in the shadow position is
985 km.
The TNO has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 8.1 sec chord
Diameter=75.3 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is 3:2E
Star training set for 469708, (2025/06/21 03:05UT) Object RA Dec mag sep mel Antares 16:30:58.4 -26:29:11 0.9 30.06 141 60Bet Oph 17:44:43.9 +04:33:30 2.8 11.70 119 PPM 201278 18:00:57.9 -04:49:17 5.8 1.49 118 PPM 201323 18:03:44.6 -05:44:01 8.0 0.39 117 PPM 201326 18:03:58.9 -06:19:13 9.2 0.20 117 469708 18:03:49.5 -06:07:34 15.2 117 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, (2025/06/21 03:05UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 30.06 141 60Bet Oph 17:43:28.3 +04:34:06 2.8 11.70 119 PPM 201278 17:59:36.8 -04:49:18 5.8 1.49 118 PPM 201323 18:02:22.9 -05:44:08 8.0 0.39 117 PPM 201326 18:02:36.8 -06:19:20 9.2 0.20 117 469708 18:02:27.5 -06:07:41 15.2 117 Positions are for J2000
Event circumstances last updated at 2021/11/10 00:15:12 UT
Marc W. Buie, Southwest Research Institute