Event between (85633) 98KR65 and star GA0800:21771222 with event index number of 2437645
Geocentric closest approach at 2025/05/25 00:57:31 UTC
J2000 position of star is 22:38:44.3 -09:36:07
Equinox of date position of star is 22:40:01.4 -09:28:27
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 57 degrees from the moon.
Moon is 7% illuminated.
Apparent brightness V=23.3
Object is 43.6 AU from the Sun
and 43.7 AU from the Earth.
Apparent velocity is 6.8
km/sec on the sky relative to the star, or,
0.8 arcsec/hr.
The 1-sigma error in the time of the event is 614 seconds.
The 1-sigma cross-track error in the shadow position is
2604 km.
The object has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 39.7 sec chord
Diameter=112.4 km assuming a 30% albedo -- 16.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 85633, (2025/05/25 00:58UT) Object RA Dec mag sep mel Fomalhaut 22:59:02.8 -29:29:13 1.2 20.50 64 PPM 206598 22:39:42.0 -07:45:54 6.0 1.71 56 PPM 206629 22:41:28.2 -09:13:33 7.4 0.42 57 PPM 206597 22:39:41.8 -09:20:14 9.6 0.16 57 85633 22:40:04.4 -09:28:09 17.0 57 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 85633, (2025/05/25 00:58UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 20.50 64 PPM 206598 22:38:22.3 -07:53:51 6.0 1.71 56 PPM 206629 22:40:08.3 -09:21:32 7.4 0.42 57 PPM 206597 22:38:21.7 -09:28:12 9.6 0.16 57 85633 22:38:44.3 -09:36:07 17.0 57 Positions are for J2000
Event circumstances last updated at 2024/06/13 03:51:06 UT
Marc W. Buie, Southwest Research Institute