Event between 15DJ249 and star GA0840:03967213 with event index number of 1800193
Geocentric closest approach at 2020/12/01 21:20:54 UTC
J2000 position of star is 10:49:22.5 -04:04:58
Equinox of date position of star is 10:50:25.5 -04:11:33
Stellar brightness G=16.0,
use SENSEUP=128
Star is 79 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=26.2
TNO is 39.7 AU from the Sun
and 39.8 AU from the Earth.
The TNO is moving 9.2
km/sec on the sky relative to the star, or,
1.1 arcsec/hr.
The 1-sigma error in the time of the event is 333 seconds.
The 1-sigma cross-track error in the shadow position is
4368 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=242.1 km assuming a 5% albedo -- 6.5 sec chord
Diameter=98.8 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is SCATNEAR
Star training set for 15DJ249, (2020/12/01 21:21UT) Object RA Dec mag sep mel Regulus 10:09:29.0 +11:51:51 1.3 19.01 63 PPM 193861 10:52:09.2 -03:12:15 5.8 1.08 79 40 Sex 10:50:20.9 -04:08:05 7.0 0.06 79 15DJ249 10:50:26.3 -04:11:38 16.0 79 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 15DJ249, (2020/12/01 21:21UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 19.01 63 PPM 193861 10:51:05.3 -03:05:34 5.8 1.08 79 40 Sex 10:49:17.2 -04:01:25 7.0 0.06 79 15DJ249 10:49:22.5 -04:04:58 16.0 79 Positions are for J2000
Event circumstances last updated at 2020/09/01 21:23:13 UT
Marc W. Buie, Southwest Research Institute