Event between (523678) 13XB26 and star GA0880:03964165 with event index number of 308751
Geocentric closest approach at 2020/04/21 20:27:11 UTC
J2000 position of star is 11:42:54.7 -01:45:56
Equinox of date position of star is 11:43:55.5 -01:52:31
Stellar brightness G=15.5,
use SENSEUP=128
Star is 157 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=21.9
TNO is 45.3 AU from the Sun
and 44.5 AU from the Earth.
The TNO is moving 20.1
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 124 seconds.
The 1-sigma cross-track error in the shadow position is
2192 km.
The TNO has an absolute magnitude Hv=5.3
Diameter=524.8 km assuming a 5% albedo -- 26.1 sec chord
Diameter=214.3 km assuming a 30% albedo -- 10.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 523678, (2020/04/21 20:27UT) Object RA Dec mag sep mel Spica 13:26:15.9 -11:16:00 1.0 27.06 171 Denebola 11:50:05.7 +14:27:31 2.1 16.41 152 91Ups Leo 11:37:59.3 -00:56:10 4.3 1.76 155 PPM 178572 11:42:21.0 -01:53:28 8.3 0.40 156 PPM 178579 11:44:47.7 -02:07:14 11.1 0.32 157 523678 11:43:57.1 -01:52:41 15.5 157 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 523678, (2020/04/21 20:27UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 27.06 171 Denebola 11:49:02.9 +14:34:17 2.1 16.41 152 91Ups Leo 11:36:56.9 -00:49:25 4.3 1.76 155 PPM 178572 11:41:18.6 -01:46:43 8.3 0.40 156 PPM 178579 11:43:45.3 -02:00:28 11.1 0.32 157 523678 11:42:54.7 -01:45:56 15.5 157 Positions are for J2000
Event circumstances last updated at 2019/10/15 22:17:20 UT
Marc W. Buie, Southwest Research Institute