Event between 20YR3 and star GA1180:00777724 with event index number of 2179437
Geocentric closest approach at 2024/02/09 17:13:22 UTC
J2000 position of star is 04:19:54.6 +28:09:07
Equinox of date position of star is 04:21:24.1 +28:12:30
Stellar brightness G=13.6,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 111 degrees from the moon.
Moon is 0% illuminated.
Apparent brightness V=21.8
Object is 16.7 AU from the Sun
and 16.3 AU from the Earth.
Apparent velocity is 20.2
km/sec on the sky relative to the star, or,
6.1 arcsec/hr.
The 1-sigma error in the time of the event is 55 seconds.
The 1-sigma cross-track error in the shadow position is
767 km.
The object has an absolute magnitude Hv=9.3
Diameter=83.9 km assuming a 5% albedo -- 4.2 sec chord
Diameter=34.3 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 20YR3, (2024/02/09 17:19UT) Object RA Dec mag sep mel Aldebaran 04:37:18.4 +16:33:21 0.8 12.22 112 44Zet Per 03:55:39.2 +31:57:12 2.8 6.71 107 44 Tau 04:12:18.2 +26:32:31 5.4 2.62 109 PPM 093434 04:22:08.2 +28:56:52 8.0 0.76 112 PPM 093450 04:23:28.8 +28:21:24 9.8 0.48 112 PPM 093412 04:20:26.9 +28:00:55 10.3 0.29 111 20YR3 04:21:24.4 +28:12:30 13.6 112 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 20YR3, (2024/02/09 17:19UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 12.22 112 44Zet Per 03:54:07.9 +31:53:01 2.8 6.71 107 44 Tau 04:10:49.8 +26:28:51 5.4 2.62 109 PPM 093434 04:20:37.8 +28:53:31 8.0 0.76 112 PPM 093450 04:21:58.8 +28:18:05 9.8 0.48 112 PPM 093412 04:18:57.3 +27:57:30 10.3 0.29 111 20YR3 04:19:54.6 +28:09:07 13.6 111 Positions are for J2000
Event circumstances last updated at 2024/01/09 04:24:34 UT
Marc W. Buie, Southwest Research Institute