Event between 04HL79 and star GA0780:04747323 with event index number of 253801
Geocentric closest approach at 2020/04/17 22:56:50 UTC
J2000 position of star is 15:16:34.9 -10:03:54
Equinox of date position of star is 15:17:40.6 -10:08:18
Stellar brightness G=11.6,
use SENSEUP=8
Star is 103 degrees from the moon.
Moon is 22% illuminated.
TNO apparent brightness V=26.1
TNO is 41.1 AU from the Sun
and 40.1 AU from the Earth.
The TNO is moving 23.1
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 384 seconds.
The 1-sigma cross-track error in the shadow position is
5743 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=176.2 km assuming a 5% albedo -- 2.6 sec chord
Diameter=71.9 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 04HL79, (2020/04/17 22:57UT) Object RA Dec mag sep mel Antares 16:30:39.3 -26:28:31 0.9 23.75 82 27Bet Lib 15:18:06.1 -09:27:24 2.6 0.69 103 31Eps Lib 15:25:18.1 -10:23:38 4.8 1.89 101 PPM 230026 15:18:38.2 -10:34:27 7.6 0.49 103 PPM 198417 15:17:51.6 -10:01:01 9.6 0.13 103 04HL79 15:17:41.0 -10:08:19 11.6 103 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 04HL79, (2020/04/17 22:57UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 23.75 82 27Bet Lib 15:17:00.3 -09:22:59 2.6 0.69 103 31Eps Lib 15:24:11.8 -10:19:23 4.8 1.89 101 PPM 230026 15:17:32.0 -10:30:03 7.6 0.49 103 PPM 198417 15:16:45.6 -09:56:36 9.6 0.13 103 04HL79 15:16:34.9 -10:03:54 11.6 103 Positions are for J2000
Event circumstances last updated at 2020/03/08 20:29:09 UT
Marc W. Buie, Southwest Research Institute