Event between (552033) 13RO98 and star GA1020:19268021 with event index number of 2250862
Geocentric closest approach at 2025/09/15 15:24:44 UTC
J2000 position of star is 23:07:57.2 +12:51:21
Equinox of date position of star is 23:09:10.3 +12:59:16
Stellar brightness G=14.0,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 103 degrees from the moon.
Moon is 37% illuminated.
Apparent brightness V=22.0
Object is 37.7 AU from the Sun
and 36.8 AU from the Earth.
Apparent velocity is 24.2
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 89 seconds.
The 1-sigma cross-track error in the shadow position is
1836 km.
The object has an absolute magnitude Hv=6.2
Diameter=331.1 km assuming a 5% albedo -- 14.2 sec chord
Diameter=135.2 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 552033, (2025/09/15 15:26UT) Object RA Dec mag sep mel Deneb 20:42:18.5 +45:22:24 1.3 44.88 101 Markab 23:06:02.6 +15:20:39 2.5 2.47 102 52 Peg 23:00:29.0 +11:52:01 6.0 2.42 106 PPM 142206 23:09:05.5 +12:48:46 7.9 0.19 103 552033 23:09:14.5 +12:59:43 14.0 103 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 552033, (2025/09/15 15:26UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 44.88 101 Markab 23:04:45.8 +15:12:18 2.5 2.47 102 52 Peg 22:59:11.8 +11:43:43 6.0 2.42 106 PPM 142206 23:07:48.1 +12:40:24 7.9 0.19 103 552033 23:07:57.2 +12:51:21 14.0 103 Positions are for J2000
Event circumstances last updated at 2024/04/22 04:00:31 UT
Marc W. Buie, Southwest Research Institute