Event between 98WY24 and star UC4-564-036264 with event index number of 225633
Geocentric closest approach at 2019/11/29 19:49:03 UTC
J2000 position of star is 07:05:20.2 +22:38:39
Equinox of date position of star is 07:06:26.6 +22:36:55
Stellar brightness R=13.5,
use SENSEUP=32
Star is 178 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=22.8
TNO is 41.5 AU from the Sun
and 40.7 AU from the Earth.
The TNO is moving 19.3
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 1532 seconds.
The 1-sigma cross-track error in the shadow position is
3549 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 15.1 sec chord
Diameter=118.8 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 98WY24, (2019/11/29 19:49UT) Object RA Dec mag sep mel Pollux 07:46:32.0 +27:58:35 1.1 10.51 171 Alhena 06:38:51.7 +16:22:50 1.9 9.02 169 44 Gem 07:06:30.2 +22:36:21 5.9 0.01 178 PPM 096927 07:03:28.1 +22:03:57 8.0 0.90 177 44 Gem 07:06:30.2 +22:36:21 5.9 0.01 178 98WY24 07:06:32.1 +22:36:46 13.5 178 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 98WY24, (2019/11/29 19:49UT) Object RA Dec mag sep mel Pollux 07:45:18.1 +28:01:33 1.1 10.51 171 Alhena 06:37:42.8 +16:23:57 1.9 9.02 169 44 Gem 07:05:18.4 +22:38:15 5.9 0.01 178 PPM 096927 07:02:16.5 +22:05:46 8.0 0.90 177 44 Gem 07:05:18.4 +22:38:15 5.9 0.01 178 98WY24 07:05:20.2 +22:38:39 13.5 178 Positions are for J2000
Event circumstances last updated at 2018/05/24 02:55:50 UT
Marc W. Buie, Southwest Research Institute