Event between (530941) 11XJ4 and star GA0780:04241178 with event index number of 1599998
Geocentric closest approach at 2024/04/06 19:45:33 UTC
J2000 position of star is 12:30:09.8 -10:41:04
Equinox of date position of star is 12:31:17.6 -10:48:18
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 157 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=22.7
TNO is 37.5 AU from the Sun
and 36.5 AU from the Earth.
The TNO is moving 24.5
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 202 seconds.
The 1-sigma cross-track error in the shadow position is
3489 km.
The TNO has an absolute magnitude Hv=7.0
Diameter=239.9 km assuming a 5% albedo -- 9.8 sec chord
Diameter=97.9 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is SCATEXTD
Star training set for 530941, (2024/04/06 19:42UT) Object RA Dec mag sep mel Spica 13:26:28.5 -11:17:14 1.0 13.52 146 4Gam Crv 12:17:03.5 -17:40:36 2.6 7.69 154 21 Vir 12:35:02.0 -09:35:08 5.6 1.52 157 PPM 225897 12:29:52.0 -11:09:23 8.3 0.51 157 PPM 225915 12:30:55.4 -10:52:21 9.5 0.13 157 530941 12:31:25.2 -10:49:06 16.4 157 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 530941, (2024/04/06 19:42UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 13.52 146 4Gam Crv 12:15:48.1 -17:32:30 2.6 7.69 154 21 Vir 12:33:46.6 -09:27:07 5.6 1.52 157 PPM 225897 12:28:36.6 -11:01:20 8.3 0.51 157 PPM 225915 12:29:39.9 -10:44:19 9.5 0.13 157 530941 12:30:09.8 -10:41:04 16.4 157 Positions are for J2000
Event circumstances last updated at 2021/10/25 00:01:58 UT
Marc W. Buie, Southwest Research Institute