Event between 99RG215 and star GA0900:16574126 with event index number of 213172
Geocentric closest approach at 2018/11/11 17:18:39 UTC
J2000 position of star is 23:59:51.3 +00:14:02
Equinox of date position of star is 00:00:49.1 +00:20:19
Stellar brightness G=15.7,
use SENSEUP=128
Star is 83 degrees from the moon.
Moon is 16% illuminated.
TNO apparent brightness V=23.7
TNO is 44.0 AU from the Sun
and 43.3 AU from the Earth.
The TNO is moving 14.9
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 619 seconds.
The 1-sigma cross-track error in the shadow position is
4350 km.
The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 14.7 sec chord
Diameter=89.3 km assuming a 30% albedo -- 6.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 99RG215, (2018/11/11 17:19UT) Object RA Dec mag sep mel Fomalhaut 22:58:41.3 -29:31:19 1.2 33.34 60 Algenib 00:14:12.6 +15:17:18 2.8 15.31 92 PPM 174549 23:55:44.6 +00:12:51 5.6 1.28 82 PPM 181730 00:00:44.5 -00:10:31 8.0 0.51 83 PPM 143042 00:01:25.8 +00:18:37 9.4 0.15 83 99RG215 00:00:49.3 +00:20:20 15.7 83 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 99RG215, (2018/11/11 17:19UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 33.34 60 Algenib 00:13:14.2 +15:11:01 2.8 15.31 92 PPM 174549 23:54:46.6 +00:06:33 5.6 1.28 82 PPM 181730 23:59:46.5 -00:16:49 8.0 0.51 83 PPM 143042 00:00:27.8 +00:12:19 9.4 0.15 83 99RG215 23:59:51.3 +00:14:02 15.7 83 Positions are for J2000
Event circumstances last updated at 2018/10/24 21:06:51 UT
Marc W. Buie, Southwest Research Institute