Event between (523955) 98UU43 and star GA1060:01134183 with event index number of 2352733
Geocentric closest approach at 2028/01/27 23:44:17 UTC
J2000 position of star is 05:39:09.8 +17:43:27
Equinox of date position of star is 05:40:34.4 +17:44:09
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 123 degrees from the moon.
Moon is 2% illuminated.
Apparent brightness V=22.6
Object is 33.9 AU from the Sun
and 33.2 AU from the Earth.
Apparent velocity is 17.4
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 413 seconds.
The 1-sigma cross-track error in the shadow position is
1947 km.
The object has an absolute magnitude Hv=7.2
Diameter=199.5 km assuming a 5% albedo -- 12.4 sec chord
Diameter=81.5 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 4:3E
Star training set for 523955, (2028/01/27 23:44UT) Object RA Dec mag sep mel Betelgeuse 05:56:41.6 +07:24:36 0.4 11.03 126 Alnath 05:28:04.1 +28:37:43 1.6 11.28 120 122 Tau 05:38:41.6 +17:03:18 5.7 0.85 122 PPM 121237 05:41:41.6 +17:41:23 8.4 0.22 123 523955 05:40:48.1 +17:44:16 16.5 123 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 523955, (2028/01/27 23:44UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 11.03 126 Alnath 05:26:17.6 +28:36:23 1.6 11.28 120 122 Tau 05:37:03.8 +17:02:24 5.7 0.85 122 PPM 121237 05:40:03.4 +17:40:36 8.4 0.22 123 523955 05:39:09.8 +17:43:27 16.5 123 Positions are for J2000
Event circumstances last updated at 2024/03/06 04:36:32 UT
Marc W. Buie, Southwest Research Institute