Event between (523635) 10DN93 and star GA1240:03581292 with event index number of 309200
Geocentric closest approach at 2019/07/30 09:33:31 UTC
J2000 position of star is 13:17:07.7 +35:56:07
Equinox of date position of star is 13:18:01.2 +35:49:59
Stellar brightness G=14.9,
use SENSEUP=128
Star is 81 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=21.8
TNO is 48.7 AU from the Sun
and 49.1 AU from the Earth.
The TNO is moving 26.6
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 90 seconds.
The 1-sigma cross-track error in the shadow position is
2859 km.
The TNO has an absolute magnitude Hv=4.8
Diameter=660.7 km assuming a 5% albedo -- 24.8 sec chord
Diameter=269.7 km assuming a 30% albedo -- 10.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 523635, (2019/07/30 09:34UT) Object RA Dec mag sep mel Arcturus 14:16:33.3 +19:04:53 0.0 21.14 100 Alkaid 13:48:18.6 +49:12:58 1.9 14.48 81 PPM 077092 13:19:58.2 +35:01:32 6.0 0.90 82 PPM 077098 13:20:36.3 +35:58:49 7.8 0.54 81 PPM 077053 13:17:05.7 +35:46:55 8.8 0.20 81 PPM 077075 13:18:37.4 +35:47:17 10.2 0.13 81 523635 13:18:01.6 +35:49:57 14.9 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 523635, (2019/07/30 09:34UT) Object RA Dec mag sep mel Arcturus 14:15:38.2 +19:10:18 0.0 21.14 100 Alkaid 13:47:32.2 +49:18:48 1.9 14.48 81 PPM 077092 13:19:04.2 +35:07:41 6.0 0.90 82 PPM 077098 13:19:42.6 +36:04:58 7.8 0.54 81 PPM 077053 13:16:11.7 +35:53:06 8.8 0.20 81 PPM 077075 13:17:43.6 +35:53:27 10.2 0.13 81 523635 13:17:07.7 +35:56:07 14.9 81 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:29:01 UT
Marc W. Buie, Southwest Research Institute