Event between (55638) 02VE95 and star GA0960:02207388 with event index number of 2249882
Geocentric closest approach at 2024/04/29 21:00:07 UTC
J2000 position of star is 06:48:56.1 +06:52:18
Equinox of date position of star is 06:50:14.3 +06:50:34
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 158 degrees from the moon.
Moon is 67% illuminated.
Apparent brightness V=20.8
Object is 31.2 AU from the Sun
and 31.7 AU from the Earth.
Apparent velocity is 20.1
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 110 seconds.
The 1-sigma cross-track error in the shadow position is
1300 km.
The object has an absolute magnitude Hv=5.6
Diameter=524.8 km assuming a 5% albedo -- 22.8 sec chord
Diameter=214.3 km assuming a 30% albedo -- 9.3 sec chord
Dynamical classification is 3:2E
Star training set for 55638, (2024/04/29 21:00UT) Object RA Dec mag sep mel Betelgeuse 05:56:29.4 +07:24:34 0.4 13.35 150 Alhena 06:39:07.0 +16:22:35 1.9 9.91 164 17 Mon 06:48:39.1 +08:00:32 6.2 1.23 159 PPM 151323 06:50:44.6 +07:04:40 8.5 0.27 158 PPM 151308 06:50:13.1 +07:05:00 9.0 0.24 158 PPM 151336 06:51:07.8 +06:54:23 10.4 0.23 158 55638 06:50:14.8 +06:50:34 16.4 158 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, (2024/04/29 21:00UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 13.35 150 Alhena 06:37:42.8 +16:23:57 1.9 9.91 164 17 Mon 06:47:19.8 +08:02:14 6.2 1.23 159 PPM 151323 06:49:25.9 +07:06:26 8.5 0.27 158 PPM 151308 06:48:54.3 +07:06:44 9.0 0.24 158 PPM 151336 06:49:49.2 +06:56:10 10.4 0.23 158 55638 06:48:56.1 +06:52:18 16.4 158 Positions are for J2000
Event circumstances last updated at 2024/03/05 04:22:46 UT
Marc W. Buie, Southwest Research Institute