Event between (49673) 99RA215 and star GA0700:34785885 with event index number of 361508
Geocentric closest approach at 2020/10/15 20:28:31 UTC
J2000 position of star is 23:09:59.5 -18:18:49
Equinox of date position of star is 23:11:04.7 -18:12:06
Stellar brightness G=16.4,
use SENSEUP=128
Star is 152 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=26.1
TNO is 40.4 AU from the Sun
and 39.7 AU from the Earth.
The TNO is moving 17.8
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 444 seconds.
The 1-sigma cross-track error in the shadow position is
2520 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=173.8 km assuming a 5% albedo -- 3.4 sec chord
Diameter=70.9 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is SCATEXTD
Star training set for 49673, (2020/10/15 20:29UT) Object RA Dec mag sep mel Fomalhaut 22:58:47.7 -29:30:42 1.2 11.65 142 PPM 241158 23:06:18.7 -16:58:01 6.2 1.68 151 PPM 241263 23:11:11.0 -18:35:27 8.3 0.39 151 PPM 241247 23:10:31.1 -18:30:51 9.1 0.34 151 49673 23:11:05.4 -18:12:02 16.4 152 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 49673, (2020/10/15 20:29UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:23 1.2 11.65 142 PPM 241158 23:05:12.8 -17:04:46 6.2 1.68 151 PPM 241263 23:10:05.0 -18:42:14 8.3 0.39 151 PPM 241247 23:09:25.2 -18:37:38 9.1 0.34 151 49673 23:09:59.5 -18:18:49 16.4 152 Positions are for J2000
Event circumstances last updated at 2020/08/01 21:08:11 UT
Marc W. Buie, Southwest Research Institute