Event between (581804) 15KN167 and star GA0700:06690820 with event index number of 2544154
Geocentric closest approach at 2026/04/03 14:48:28 UTC
J2000 position of star is 16:41:02.8 -18:08:47
Equinox of date position of star is 16:42:19.6 -18:11:15
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 41 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=24.8
TNO is 42.8 AU from the Sun
and 42.3 AU from the Earth.
The TNO is moving 10.9
km/sec on the sky relative to the star, or,
1.3 arcsec/hr.
The 1-sigma error in the time of the event is 1939 seconds.
The 1-sigma cross-track error in the shadow position is
4999 km.
The TNO has an absolute magnitude Hv=8.4
Diameter=124.7 km assuming a 5% albedo -- 11.4 sec chord
Diameter=50.9 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is 2:1E
Star training set for 581804, (2026/04/03 14:48UT) Object RA Dec mag sep mel Antares 16:31:01.3 -26:29:16 0.9 8.71 38 35Eta Oph 17:11:53.1 -15:45:20 2.6 7.42 48 PPM 232030 16:43:05.7 -17:47:27 5.0 0.42 41 PPM 231954 16:40:00.3 -18:16:16 6.7 0.61 40 PPM 232017 16:42:43.6 -17:59:16 9.5 0.21 41 581804 16:42:34.4 -18:11:43 15.9 41 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 581804, (2026/04/03 14:48UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 8.71 38 35Eta Oph 17:10:22.7 -15:43:29 2.6 7.42 48 PPM 232030 16:41:34.4 -17:44:32 5.0 0.42 41 PPM 231954 16:38:28.7 -18:13:14 6.7 0.61 40 PPM 232017 16:41:12.2 -17:56:21 9.5 0.21 41 581804 16:41:02.8 -18:08:47 15.9 41 Positions are for J2000
Event circumstances last updated at 2022/01/12 00:20:15 UT
Marc W. Buie, Southwest Research Institute