Event between (523955) 98UU43 and star GA1060:01113580 with event index number of 2352741
Geocentric closest approach at 2028/02/26 19:59:48 UTC
J2000 position of star is 05:37:46.5 +17:45:44
Equinox of date position of star is 05:39:11.2 +17:46:29
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 92 degrees from the moon.
Moon is 2% illuminated.
Apparent brightness V=22.7
Object is 33.9 AU from the Sun
and 33.6 AU from the Earth.
Apparent velocity is 4.6
km/sec on the sky relative to the star, or,
0.7 arcsec/hr.
The 1-sigma error in the time of the event is 1449 seconds.
The 1-sigma cross-track error in the shadow position is
2584 km.
The object has an absolute magnitude Hv=7.2
Diameter=199.5 km assuming a 5% albedo -- 46.7 sec chord
Diameter=81.5 km assuming a 30% albedo -- 19.0 sec chord
Dynamical classification is 4:3E
Star training set for 523955, (2028/02/26 20:02UT) Object RA Dec mag sep mel Betelgeuse 05:56:41.8 +07:24:36 0.4 11.19 97 Alnath 05:28:04.5 +28:37:43 1.6 11.16 89 122 Tau 05:38:41.8 +17:03:18 5.7 0.74 92 PPM 121237 05:41:41.9 +17:41:23 8.4 0.55 93 PPM 121186 05:38:45.2 +17:20:55 9.3 0.46 92 PPM 121204 05:39:52.8 +17:23:20 11.6 0.40 92 523955 05:39:25.1 +17:46:36 16.8 93 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, (2028/02/26 20:02UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 11.19 97 Alnath 05:26:17.6 +28:36:23 1.6 11.16 89 122 Tau 05:37:03.8 +17:02:24 5.7 0.74 92 PPM 121237 05:40:03.4 +17:40:36 8.4 0.55 93 PPM 121186 05:37:06.9 +17:20:00 9.3 0.46 92 PPM 121204 05:38:14.5 +17:22:29 11.6 0.40 92 523955 05:37:46.5 +17:45:44 16.8 92 Positions are for J2000
Event circumstances last updated at 2024/03/06 04:38:03 UT
Marc W. Buie, Southwest Research Institute