Event between (493480) 14YZ49 and star GA1020:03567206 with event index number of 194083
Geocentric closest approach at 2019/04/03 20:56:21 UTC
J2000 position of star is 12:25:38.8 +12:11:30
Equinox of date position of star is 12:26:36.9 +12:05:09
Stellar brightness G=16.4,
use SENSEUP=128
Star is 170 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=21.3
TNO is 39.5 AU from the Sun
and 38.6 AU from the Earth.
The TNO is moving 24.5
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 124 seconds.
The 1-sigma cross-track error in the shadow position is
2306 km.
The TNO has an absolute magnitude Hv=5.3
Diameter=524.8 km assuming a 5% albedo -- 21.4 sec chord
Diameter=214.3 km assuming a 30% albedo -- 8.7 sec chord
Dynamical classification is SCATEXTD
Star training set for 493480, (2019/04/03 20:56UT) Object RA Dec mag sep mel Arcturus 14:16:32.4 +19:04:59 0.0 27.34 143 Vindemiatrix 13:03:08.1 +10:51:22 2.8 9.03 163 20 Vir 12:34:01.3 +10:11:23 6.3 2.62 170 PPM 129121 12:32:37.7 +12:01:18 8.0 1.47 169 PPM 129065 12:28:33.2 +11:59:34 8.6 0.48 170 PPM 129034 12:26:03.6 +11:49:52 10.7 0.29 170 493480 12:26:37.3 +12:05:06 16.4 170 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 493480, (2019/04/03 20:56UT) Object RA Dec mag sep mel Arcturus 14:15:38.2 +19:10:19 0.0 27.34 143 Vindemiatrix 13:02:10.3 +10:57:33 2.8 9.03 163 20 Vir 12:33:02.8 +10:17:44 6.3 2.62 170 PPM 129121 12:31:39.3 +12:07:40 8.0 1.47 169 PPM 129065 12:27:34.7 +12:05:57 8.6 0.48 170 PPM 129034 12:25:05.0 +11:56:15 10.7 0.29 170 493480 12:25:38.8 +12:11:30 16.4 170 Positions are for J2000
Event circumstances last updated at 2019/02/12 07:08:21 UT
Marc W. Buie, Southwest Research Institute