Event between 13JU64 and star UC4-373-076023 with event index number of 198957
Geocentric closest approach at 2017/09/24 20:57:32 UTC
J2000 position of star is 16:06:58.0 -15:33:10
Equinox of date position of star is 16:07:57.8 -15:35:56
Stellar brightness R=14.8,
use SENSEUP=128
Star is 6 degrees from the moon.
Moon is 21% illuminated.
TNO apparent brightness V=24.7
TNO is 37.4 AU from the Sun
and 37.8 AU from the Earth.
The TNO is moving 19.9
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 278 seconds.
The 1-sigma cross-track error in the shadow position is
2396 km.
The TNO has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 5.3 sec chord
Diameter=42.8 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 13JU64, (2017/09/24 20:58UT) Object RA Dec mag sep mel Antares 16:30:29.8 -26:28:12 0.9 12.07 16 8Bet1Sco 16:06:28.2 -19:51:09 2.6 4.27 8 49 Lib 16:01:19.5 -16:35:04 5.5 1.88 5 PPM 231220 16:07:53.7 -16:11:34 8.4 0.59 6 PPM 231192 16:07:07.0 -15:30:55 8.7 0.22 6 PPM 231219 16:07:50.3 -15:33:00 10.2 0.06 6 13JU64 16:07:58.4 -15:35:57 14.8 7 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 13JU64, (2017/09/24 20:58UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 12.07 16 8Bet1Sco 16:05:26.2 -19:48:20 2.6 4.27 8 49 Lib 16:00:18.8 -16:32:07 5.5 1.88 5 PPM 231220 16:06:53.1 -16:08:46 8.4 0.59 6 PPM 231192 16:06:06.7 -15:28:07 8.7 0.22 6 PPM 231219 16:06:50.0 -15:30:13 10.2 0.06 6 13JU64 16:06:58.0 -15:33:10 14.8 6 Positions are for J2000
Event circumstances last updated at 2017/07/25 16:13:06 UT
Marc W. Buie, Southwest Research Institute