Event between (24835) 95SM55 and star GA1240:00698659 with event index number of 203818
Geocentric closest approach at 2019/07/20 15:31:05 UTC
J2000 position of star is 03:23:56.2 +35:23:08
Equinox of date position of star is 03:25:10.1 +35:27:12
Stellar brightness G=16.4,
use SENSEUP=128
Star is 80 degrees from the moon.
Moon is 87% illuminated.
TNO apparent brightness V=20.6
TNO is 38.0 AU from the Sun
and 38.5 AU from the Earth.
The TNO is moving 21.3
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 211 seconds.
The 1-sigma cross-track error in the shadow position is
4406 km.
The TNO has an absolute magnitude Hv=4.6
Diameter=724.5 km assuming a 5% albedo -- 34.0 sec chord
Diameter=295.8 km assuming a 30% albedo -- 13.9 sec chord
Dynamical classification is SCATEXTD
Star training set for 24835, (2019/07/20 15:31UT) Object RA Dec mag sep mel Aldebaran 04:37:02.7 +16:32:49 0.8 24.77 90 Algol 03:09:26.9 +41:01:47 2.1 6.37 80 PPM 068330 03:19:57.6 +34:17:35 5.9 1.58 79 PPM 068499 03:30:04.1 +35:52:23 8.0 1.08 81 PPM 068437 03:26:29.4 +35:12:15 9.4 0.37 81 24835 03:25:10.7 +35:27:14 16.4 81 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 24835, (2019/07/20 15:31UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 24.77 90 Algol 03:08:10.1 +40:57:20 2.1 6.37 80 PPM 068330 03:18:43.9 +34:13:22 5.9 1.58 79 PPM 068499 03:28:49.0 +35:48:24 8.0 1.08 81 PPM 068437 03:25:14.9 +35:08:11 9.4 0.37 81 24835 03:23:56.2 +35:23:08 16.4 80 Positions are for J2000
Event circumstances last updated at 2019/05/23 22:41:01 UT
Marc W. Buie, Southwest Research Institute