Event between (456826) 07TH422 and star GA1080:01377328 with event index number of 1000131
Geocentric closest approach at 2020/12/03 15:11:06 UTC
J2000 position of star is 05:48:51.4 +18:06:23
Equinox of date position of star is 05:50:02.4 +18:06:41
Stellar brightness G=15.9,
use SENSEUP=128
Star is 23 degrees from the moon.
Moon is 90% illuminated.
TNO apparent brightness V=24.7
TNO is 29.7 AU from the Sun
and 28.8 AU from the Earth.
The TNO is moving 23.9
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 422 seconds.
The 1-sigma cross-track error in the shadow position is
5870 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=173.8 km assuming a 5% albedo -- 2.5 sec chord
Diameter=70.9 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 456826, (2020/12/03 15:11UT) Object RA Dec mag sep mel Betelgeuse 05:56:18.3 +07:24:33 0.4 10.81 27 Alnath 05:27:37.0 +28:37:23 1.6 11.70 26 PPM 121513 05:53:37.8 +19:52:17 6.4 1.95 21 PPM 121421 05:49:58.3 +18:14:54 7.7 0.14 23 456826 05:50:04.9 +18:06:42 15.9 22 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 456826, (2020/12/03 15:11UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 10.81 27 Alnath 05:26:17.5 +28:36:23 1.6 11.70 26 PPM 121513 05:52:23.4 +19:52:04 6.4 1.95 21 PPM 121421 05:48:44.8 +18:14:35 7.7 0.14 23 456826 05:48:51.4 +18:06:23 15.9 23 Positions are for J2000
Event circumstances last updated at 2020/03/16 22:41:46 UT
Marc W. Buie, Southwest Research Institute