Event between (613469) 06QJ181 and star GA0980:02804530 with event index number of 2810275
Geocentric closest approach at 2028/04/22 10:20:31 UTC
J2000 position of star is 07:07:17.0 +09:36:03
Equinox of date position of star is 07:08:30.7 +09:33:52
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 102 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=22.3
TNO is 31.6 AU from the Sun
and 31.9 AU from the Earth.
The TNO is moving 14.4
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 370 seconds.
The 1-sigma cross-track error in the shadow position is
3071 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=231.2 km assuming a 5% albedo -- 16.0 sec chord
Diameter=94.4 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is 3:1EE+3:1II
Star training set for 613469, (2028/04/22 10:21UT) Object RA Dec mag sep mel Betelgeuse 05:56:42.3 +07:24:36 0.4 17.96 85 Alhena 06:39:20.8 +16:22:22 1.9 9.90 94 PPM 151820 07:04:50.8 +09:05:42 6.0 1.09 101 PPM 151951 07:08:39.0 +09:49:59 8.0 0.28 102 PPM 151988 07:09:36.0 +09:42:40 9.3 0.24 102 PPM 151983 07:09:31.3 +09:30:51 10.8 0.17 102 613469 07:08:50.1 +09:33:17 15.4 103 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 613469, (2028/04/22 10:21UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 17.96 85 Alhena 06:37:42.8 +16:23:56 1.9 9.90 94 PPM 151820 07:03:17.9 +09:08:18 6.0 1.09 101 PPM 151951 07:07:05.7 +09:52:45 8.0 0.28 102 PPM 151988 07:08:02.8 +09:45:28 9.3 0.24 102 PPM 151983 07:07:58.2 +09:33:39 10.8 0.17 102 613469 07:07:17.0 +09:36:03 15.4 102 Positions are for J2000
Event circumstances last updated at 2022/05/23 23:26:27 UT
Marc W. Buie, Southwest Research Institute