Event between 13GF138 and star GA0720:05373544 with event index number of 239278
Geocentric closest approach at 2020/01/12 00:44:26 UTC
J2000 position of star is 15:02:00.6 -16:44:34
Equinox of date position of star is 15:03:05.9 -16:49:06
Stellar brightness G=16.4,
use SENSEUP=128
Star is 100 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=23.9
TNO is 44.2 AU from the Sun
and 44.7 AU from the Earth.
The TNO is moving 18.2
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 265 seconds.
The 1-sigma cross-track error in the shadow position is
3192 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=206.1 km assuming a 5% albedo -- 11.3 sec chord
Diameter=84.1 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 13GF138, (2020/01/12 00:44UT) Object RA Dec mag sep mel Antares 16:30:38.3 -26:28:29 0.9 22.46 122 27Bet Lib 15:18:05.3 -09:27:20 2.6 8.21 101 21Nu Lib 15:07:44.9 -16:20:00 5.2 1.21 101 PPM 229695 15:04:41.0 -16:40:12 7.7 0.40 101 PPM 229641 15:02:31.1 -16:57:54 9.3 0.21 100 13GF138 15:03:08.0 -16:49:15 16.4 101 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 13GF138, (2020/01/12 00:44UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.46 122 27Bet Lib 15:17:00.3 -09:22:59 2.6 8.21 101 21Nu Lib 15:06:37.6 -16:15:25 5.2 1.21 101 PPM 229695 15:03:33.7 -16:35:33 7.7 0.40 101 PPM 229641 15:01:23.7 -16:53:12 9.3 0.21 100 13GF138 15:02:00.6 -16:44:34 16.4 100 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:09:19 UT
Marc W. Buie, Southwest Research Institute