Event between (535985) 15BF515 and star GA1160:03065646 with event index number of 1618767
Geocentric closest approach at 2020/02/29 18:42:41 UTC
J2000 position of star is 08:37:06.8 +27:37:52
Equinox of date position of star is 08:38:19.6 +27:33:36
Stellar brightness G=13.0,
use SENSEUP=32
Star is 78 degrees from the moon.
Moon is 31% illuminated.
TNO apparent brightness V=22.7
TNO is 18.2 AU from the Sun
and 17.3 AU from the Earth.
The TNO is moving 19.1
km/sec on the sky relative to the star, or,
5.5 arcsec/hr.
The 1-sigma error in the time of the event is 54 seconds.
The 1-sigma cross-track error in the shadow position is
952 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=63.1 km assuming a 5% albedo -- 3.2 sec chord
Diameter=25.8 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 535985, (2020/02/29 18:43UT) Object RA Dec mag sep mel Pollux 07:46:32.8 +27:58:33 1.1 11.46 66 48Iot Cnc 08:47:54.8 +28:41:05 4.0 2.39 80 PPM 098886 08:39:20.4 +25:58:35 8.2 1.60 78 PPM 098859 08:37:56.7 +27:04:27 9.7 0.49 78 PPM 098888 08:39:25.3 +27:44:37 11.2 0.30 78 535985 08:38:19.7 +27:33:36 13.0 78 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 535985, (2020/02/29 18:43UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 11.46 66 48Iot Cnc 08:46:41.8 +28:45:35 4.0 2.39 80 PPM 098886 08:38:08.3 +26:02:53 8.2 1.60 78 PPM 098859 08:36:44.1 +27:08:43 9.7 0.49 78 PPM 098888 08:38:12.4 +27:48:55 11.2 0.30 78 535985 08:37:06.8 +27:37:52 13.0 78 Positions are for J2000
Event circumstances last updated at 2020/02/26 21:27:26 UT
Marc W. Buie, Southwest Research Institute