Event between (506439) 00YB2 and star GA1100:02256158 with event index number of 2530192
Geocentric closest approach at 2028/12/16 20:58:38 UTC
J2000 position of star is 06:36:42.0 +20:47:19
Equinox of date position of star is 06:38:09.6 +20:45:59
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 175 degrees from the moon.
Moon is 1% illuminated.
Apparent brightness V=23.0
Object is 39.3 AU from the Sun
and 38.3 AU from the Earth.
Apparent velocity is 24.8
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 982 seconds.
The 1-sigma cross-track error in the shadow position is
2848 km.
The object has an absolute magnitude Hv=7.1
Diameter=275.4 km assuming a 5% albedo -- 9.1 sec chord
Diameter=112.4 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 506439, (2028/12/16 20:59UT) Object RA Dec mag sep mel Betelgeuse 05:56:44.4 +07:24:36 0.4 16.73 162 Alhena 06:39:23.1 +16:22:19 1.9 4.40 172 PPM 096308 06:40:49.8 +22:00:10 6.0 1.36 176 PPM 096223 06:37:20.3 +20:51:46 8.4 0.27 176 506439 06:38:25.6 +20:45:44 15.4 175 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 506439, (2028/12/16 20:59UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 16.73 162 Alhena 06:37:42.8 +16:23:56 1.9 4.40 172 PPM 096308 06:39:05.3 +22:01:51 6.0 1.36 176 PPM 096223 06:35:36.6 +20:53:18 8.4 0.27 176 506439 06:36:42.0 +20:47:19 15.4 175 Positions are for J2000
Event circumstances last updated at 2024/06/25 21:30:38 UT
Marc W. Buie, Southwest Research Institute