Event between 13GJ138 and star GA0620:06720247 with event index number of 2053272
Geocentric closest approach at 2024/06/15 16:59:29 UTC
J2000 position of star is 14:18:12.1 -27:52:12
Equinox of date position of star is 14:19:36.0 -27:58:49
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 33 degrees from the moon.
Moon is 64% illuminated.
Apparent brightness V=23.1
Object is 31.1 AU from the Sun
and 30.3 AU from the Earth.
Apparent velocity is 15.6
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 258 seconds.
The 1-sigma cross-track error in the shadow position is
4335 km.
The object has an absolute magnitude Hv=8.1
Diameter=146.6 km assuming a 5% albedo -- 9.4 sec chord
Diameter=59.8 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is CENTAURR
Star training set for 13GJ138, (2024/06/15 17:00UT) Object RA Dec mag sep mel Spica 13:26:29.1 -11:17:17 1.0 20.82 13 5The Cen 14:08:08.0 -36:29:19 2.1 8.85 38 PPM 262770 14:20:32.0 -27:15:10 6.4 0.76 33 PPM 262750 14:19:37.1 -27:38:00 8.5 0.35 33 PPM 262727 14:18:40.4 -27:57:58 9.5 0.21 33 13GJ138 14:19:37.2 -27:58:55 16.2 33 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 13GJ138, (2024/06/15 17:00UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 20.82 13 5The Cen 14:06:40.0 -36:22:23 2.1 8.85 38 PPM 262770 14:19:07.1 -27:08:29 6.4 0.76 33 PPM 262750 14:18:12.1 -27:31:17 8.5 0.35 33 PPM 262727 14:17:15.4 -27:51:14 9.5 0.21 33 13GJ138 14:18:12.1 -27:52:12 16.2 33 Positions are for J2000
Event circumstances last updated at 2024/02/12 04:26:52 UT
Marc W. Buie, Southwest Research Institute