Event between (55638) 02VE95 and star GA0940:02489202 with event index number of 2250167
Geocentric closest approach at 2025/12/30 00:13:12 UTC
J2000 position of star is 07:11:02.1 +05:28:51
Equinox of date position of star is 07:12:19.4 +05:26:22
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 73 degrees from the moon.
Moon is 74% illuminated.
Apparent brightness V=20.6
Object is 31.7 AU from the Sun
and 30.8 AU from the Earth.
Apparent velocity is 24.2
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 130 seconds.
The 1-sigma cross-track error in the shadow position is
1283 km.
The object has an absolute magnitude Hv=5.6
Diameter=524.8 km assuming a 5% albedo -- 19.0 sec chord
Diameter=214.3 km assuming a 30% albedo -- 7.7 sec chord
Dynamical classification is 3:2E
Star training set for 55638, (2025/12/30 00:13UT) Object RA Dec mag sep mel Betelgeuse 05:56:34.8 +07:24:35 0.4 18.94 55 Alhena 06:39:12.8 +16:22:29 1.9 13.63 63 PPM 152128 07:13:14.5 +05:36:34 6.0 0.27 73 PPM 152093 07:12:09.5 +05:41:21 8.3 0.26 73 PPM 152076 07:11:43.1 +05:15:28 9.2 0.25 73 PPM 152113 07:12:35.0 +05:18:53 10.8 0.13 73 55638 07:12:25.2 +05:26:10 16.9 74 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 55638, (2025/12/30 00:13UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 18.94 55 Alhena 06:37:42.8 +16:23:57 1.9 13.63 63 PPM 152128 07:11:51.4 +05:39:16 6.0 0.27 73 PPM 152093 07:10:46.3 +05:44:01 8.3 0.26 73 PPM 152076 07:10:20.1 +05:18:07 9.2 0.25 73 PPM 152113 07:11:12.0 +05:21:34 10.8 0.13 73 55638 07:11:02.1 +05:28:51 16.9 73 Positions are for J2000
Event circumstances last updated at 2024/03/05 04:24:51 UT
Marc W. Buie, Southwest Research Institute