Event between (517717) 15KZ120 and star GA1400:04915617 with event index number of 267370
Geocentric closest approach at 2019/05/10 20:33:40 UTC
J2000 position of star is 18:11:03.6 +51:17:22
Equinox of date position of star is 18:11:30.9 +51:17:41
Stellar brightness G=15.7,
use SENSEUP=128
Star is 102 degrees from the moon.
Moon is 37% illuminated.
TNO apparent brightness V=19.6
TNO is 8.4 AU from the Sun
and 8.1 AU from the Earth.
The TNO is moving 36.1
km/sec on the sky relative to the star, or,
22.0 arcsec/hr.
The 1-sigma error in the time of the event is 14 seconds.
The 1-sigma cross-track error in the shadow position is
374 km.
The TNO has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 1.8 sec chord
Diameter=25.8 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2019/05/10 20:34UT) Object RA Dec mag sep mel Vega 18:37:35.7 +38:48:10 0.0 13.30 115 Etamin 17:57:03.4 +51:29:14 2.2 2.26 101 PPM 036381 18:07:21.3 +50:49:36 6.3 0.80 102 PPM 036424 18:11:28.2 +51:44:43 8.3 0.45 102 PPM 036402 18:09:35.3 +51:22:05 9.9 0.31 102 PPM 036433 18:12:24.0 +51:10:45 10.7 0.18 102 517717 18:11:30.9 +51:17:41 15.7 102 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 517717, (2019/05/10 20:34UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 13.30 115 Etamin 17:56:36.3 +51:29:20 2.2 2.26 101 PPM 036381 18:06:53.5 +50:49:24 6.3 0.80 102 PPM 036424 18:11:01.4 +51:44:24 8.3 0.45 102 PPM 036402 18:09:08.1 +51:21:49 9.9 0.31 102 PPM 036433 18:11:56.6 +51:10:25 10.7 0.18 102 517717 18:11:03.6 +51:17:22 15.7 102 Positions are for J2000
Event circumstances last updated at 2019/05/08 22:54:03 UT
Marc W. Buie, Southwest Research Institute