Event between (69986) 98WW24 and star GA1040:01315134 with event index number of 178042
Geocentric closest approach at 2019/01/09 20:44:54 UTC
J2000 position of star is 05:56:10.7 +14:58:58
Equinox of date position of star is 05:57:14.9 +14:59:03
Stellar brightness G=15.0,
use SENSEUP=128
Star is 118 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=23.4
TNO is 34.8 AU from the Sun
and 33.9 AU from the Earth.
The TNO is moving 23.4
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 173 seconds.
The 1-sigma cross-track error in the shadow position is
1435 km.
The TNO has an absolute magnitude Hv=8.0
Diameter=151.4 km assuming a 5% albedo -- 6.5 sec chord
Diameter=61.8 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is 3:2E
Star training set for 69986, (2019/01/09 20:45UT) Object RA Dec mag sep mel Betelgeuse 05:56:12.1 +07:24:33 0.4 7.58 116 Alhena 06:38:48.6 +16:22:53 1.9 10.10 128 137 Tau 05:53:27.2 +14:10:30 5.5 1.23 117 PPM 121630 05:57:54.0 +15:04:54 8.5 0.18 118 69986 05:57:16.0 +14:59:03 15.0 118 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 69986, (2019/01/09 20:45UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 7.58 116 Alhena 06:37:42.8 +16:23:57 1.9 10.10 128 137 Tau 05:52:22.2 +14:10:18 5.5 1.23 117 PPM 121630 05:56:48.7 +15:04:50 8.5 0.18 118 69986 05:56:10.7 +14:58:58 15.0 118 Positions are for J2000
Event circumstances last updated at 2018/09/19 17:47:23 UT
Marc W. Buie, Southwest Research Institute