Event between (535985) 15BF515 and star GA0940:03472539 with event index number of 2259054
Geocentric closest approach at 2027/04/25 00:19:19 UTC
J2000 position of star is 10:06:50.8 +04:20:56
Equinox of date position of star is 10:08:03.7 +04:14:03
Stellar brightness G=13.9,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 110 degrees from the moon.
Moon is 83% illuminated.
Apparent brightness V=23.1
Object is 19.8 AU from the Sun
and 19.3 AU from the Earth.
Apparent velocity is 8.3
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 328 seconds.
The 1-sigma cross-track error in the shadow position is
3020 km.
The object has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 7.5 sec chord
Diameter=25.8 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is CENTAURR
Star training set for 535985, (2027/04/25 00:19UT) Object RA Dec mag sep mel Regulus 10:09:49.5 +11:49:57 1.3 7.63 113 14 Sex 10:08:13.0 +05:28:38 6.2 1.26 110 PPM 156510 10:07:35.4 +03:24:47 8.5 0.82 110 PPM 156512 10:07:39.0 +03:48:44 9.6 0.43 110 PPM 156532 10:08:56.4 +04:07:20 10.3 0.19 110 535985 10:08:16.0 +04:12:53 13.9 109 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 535985, (2027/04/25 00:19UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 7.63 113 14 Sex 10:06:47.4 +05:36:41 6.2 1.26 110 PPM 156510 10:06:10.3 +03:32:49 8.5 0.82 110 PPM 156512 10:06:13.8 +03:56:46 9.6 0.43 110 PPM 156532 10:07:31.1 +04:15:24 10.3 0.19 110 535985 10:06:50.8 +04:20:56 13.9 110 Positions are for J2000
Event circumstances last updated at 2023/05/16 02:42:58 UT
Marc W. Buie, Southwest Research Institute