Event between 03YR179 and star GA1100:03155184 with event index number of 243400
Geocentric closest approach at 2020/02/02 01:01:31 UTC
J2000 position of star is 09:06:47.0 +21:35:32
Equinox of date position of star is 09:07:53.8 +21:30:48
Stellar brightness G=13.9,
use SENSEUP=64
Star is 91 degrees from the moon.
Moon is 50% illuminated.
TNO apparent brightness V=23.4
TNO is 41.1 AU from the Sun
and 40.2 AU from the Earth.
The TNO is moving 25.5
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 129 seconds.
The 1-sigma cross-track error in the shadow position is
1983 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=210.9 km assuming a 5% albedo -- 8.3 sec chord
Diameter=86.1 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is CLASSICAL
Star training set for 03YR179, (2020/02/02 01:02UT) Object RA Dec mag sep mel Regulus 10:09:26.4 +11:52:06 1.3 17.58 108 77Xi Cnc 09:10:30.6 +21:57:47 5.1 0.75 91 PPM 099367 09:11:38.9 +21:35:19 7.9 0.87 92 PPM 099323 09:08:41.9 +21:32:50 9.4 0.18 91 03YR179 09:07:56.0 +21:30:38 13.9 91 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 03YR179, (2020/02/02 01:02UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 17.58 108 77Xi Cnc 09:09:21.5 +22:02:44 5.1 0.75 91 PPM 099367 09:10:29.9 +21:40:17 7.9 0.87 92 PPM 099323 09:07:32.9 +21:37:44 9.4 0.18 91 03YR179 09:06:47.0 +21:35:32 13.9 91 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:13:30 UT
Marc W. Buie, Southwest Research Institute