Event between (29981) 99TD10 and star GA1060:02535591 with event index number of 257220
Geocentric closest approach at 2020/04/28 18:48:58 UTC
J2000 position of star is 06:58:38.0 +16:56:56
Equinox of date position of star is 06:59:48.1 +16:55:12
Stellar brightness G=16.5,
use SENSEUP=128
Star is 7 degrees from the moon.
Moon is 29% illuminated.
TNO apparent brightness V=25.2
TNO is 31.8 AU from the Sun
and 32.2 AU from the Earth.
The TNO is moving 16.8
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 602 seconds.
The 1-sigma cross-track error in the shadow position is
1828 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=109.7 km assuming a 5% albedo -- 3.6 sec chord
Diameter=44.8 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
Star training set for 29981, (2020/04/28 18:49UT) Object RA Dec mag sep mel Pollux 07:46:33.4 +27:58:32 1.1 15.44 11 Alhena 06:38:53.2 +16:22:49 1.9 5.04 9 PPM 123373 07:01:27.9 +15:30:19 6.4 1.47 8 PPM 123383 07:01:49.6 +16:55:45 6.7 0.48 7 PPM 123316 06:59:00.4 +16:32:57 8.9 0.42 7 29981 06:59:48.5 +16:55:12 16.5 7 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 29981, (2020/04/28 18:49UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 15.44 11 Alhena 06:37:42.8 +16:23:57 1.9 5.04 9 PPM 123373 07:00:18.1 +15:32:06 6.4 1.47 8 PPM 123383 07:00:39.2 +16:57:33 6.7 0.48 7 PPM 123316 06:57:50.1 +16:34:39 8.9 0.42 7 29981 06:58:38.0 +16:56:56 16.5 7 Positions are for J2000
Event circumstances last updated at 2020/03/16 21:27:24 UT
Marc W. Buie, Southwest Research Institute