Event between (470593) 08LP17 and star GA0620:23669444 with event index number of 2272115
Geocentric closest approach at 2025/03/04 04:05:18 UTC
J2000 position of star is 17:57:20.6 -27:10:42
Equinox of date position of star is 17:58:46.4 -27:10:45
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 131 degrees from the moon.
Moon is 23% illuminated.
TNO apparent brightness V=21.7
TNO is 31.7 AU from the Sun
and 31.9 AU from the Earth.
The TNO is moving 15.4
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 161 seconds.
The 1-sigma cross-track error in the shadow position is
1347 km.
The TNO has an absolute magnitude Hv=6.5
Diameter=346.7 km assuming a 5% albedo -- 19.3 sec chord
Diameter=141.6 km assuming a 30% albedo -- 7.9 sec chord
Dynamical classification is CENTAURR
Star training set for 470593, (2025/03/04 04:05UT) Object RA Dec mag sep mel Antares 16:30:57.3 -26:29:08 0.9 19.61 151 34Ups Sco 17:32:28.7 -37:18:48 2.7 11.57 136 3 Sgr 17:49:08.8 -27:50:17 4.2 2.27 133 PPM 267537 17:57:58.8 -26:46:33 7.7 0.45 132 PPM 267549 17:58:31.7 -27:08:14 8.9 0.10 131 470593 17:58:55.3 -27:10:46 16.9 131 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 470593, (2025/03/04 04:05UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 19.61 151 34Ups Sco 17:30:45.8 -37:17:46 2.7 11.57 136 3 Sgr 17:47:33.6 -27:49:51 4.2 2.27 133 PPM 267537 17:56:24.4 -26:46:26 7.7 0.45 132 PPM 267549 17:56:57.1 -27:08:09 8.9 0.10 131 470593 17:57:20.6 -27:10:42 16.9 131 Positions are for J2000
Event circumstances last updated at 2022/10/25 03:20:18 UT
Marc W. Buie, Southwest Research Institute