Event between 15KG174 and star GA0660:07742115 with event index number of 2449411
Geocentric closest approach at 2023/04/19 22:24:31 UTC
J2000 position of star is 16:42:33.0 -22:48:42
Equinox of date position of star is 16:43:51.5 -22:51:06
Stellar brightness G=12.2,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 134 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=23.6
TNO is 30.9 AU from the Sun
and 30.1 AU from the Earth.
The TNO is moving 15.5
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 198 seconds.
The 1-sigma cross-track error in the shadow position is
1900 km.
The TNO has an absolute magnitude Hv=8.6
Diameter=110.2 km assuming a 5% albedo -- 7.4 sec chord
Diameter=45.0 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is 5:2EEE
Star training set for 15KG174, (2023/04/19 22:25UT) Object RA Dec mag sep mel Antares 16:30:50.4 -26:28:54 0.9 4.69 136 23Tau Sco 16:37:20.2 -28:15:44 2.8 5.61 135 PPM 232040 16:43:16.1 -19:58:02 5.8 2.89 135 PPM 265858 16:45:03.7 -22:46:43 7.9 0.27 134 PPM 265816 16:43:38.3 -22:44:45 9.7 0.13 134 15KG174 16:43:57.0 -22:51:16 12.2 134 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 15KG174, (2023/04/19 22:25UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 4.69 136 23Tau Sco 16:35:52.9 -28:12:58 2.8 5.61 135 PPM 232040 16:41:53.8 -19:55:27 5.8 2.89 135 PPM 265858 16:43:39.7 -22:44:12 7.9 0.27 134 PPM 265816 16:42:14.3 -22:42:11 9.7 0.13 134 15KG174 16:42:33.0 -22:48:42 12.2 134 Positions are for J2000
Event circumstances last updated at 2021/10/08 00:58:34 UT
Marc W. Buie, Southwest Research Institute