Event between (535992) 15BF519 and star GA0760:04439510 with event index number of 1619558
Geocentric closest approach at 2021/02/12 18:47:44 UTC
J2000 position of star is 10:58:27.7 -12:08:31
Equinox of date position of star is 10:59:31.0 -12:15:19
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 154 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.2
TNO is 27.2 AU from the Sun
and 26.4 AU from the Earth.
The TNO is moving 21.1
km/sec on the sky relative to the star, or,
4.0 arcsec/hr.
The 1-sigma error in the time of the event is 104 seconds.
The 1-sigma cross-track error in the shadow position is
1624 km.
The TNO has an absolute magnitude Hv=7.8
Diameter=169.8 km assuming a 5% albedo -- 8.1 sec chord
Diameter=69.3 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CENTAURR
Star training set for 535992, (2021/02/12 18:48UT) Object RA Dec mag sep mel Regulus 10:09:29.7 +11:51:48 1.3 27.13 172 4Gam Crv 12:16:53.7 -17:39:33 2.6 19.44 141 PPM 223860 11:04:18.3 -11:25:05 5.3 1.44 154 PPM 223713 10:58:39.1 -12:16:19 8.5 0.21 154 PPM 223729 10:59:15.9 -12:10:12 9.4 0.11 154 535992 10:59:31.0 -12:15:19 15.4 153 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 535992, (2021/02/12 18:48UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 27.13 172 4Gam Crv 12:15:48.1 -17:32:30 2.6 19.44 141 PPM 223860 11:03:14.8 -11:18:15 5.3 1.44 154 PPM 223713 10:57:35.8 -12:09:31 8.5 0.21 154 PPM 223729 10:58:12.6 -12:03:23 9.4 0.11 154 535992 10:58:27.7 -12:08:31 15.4 154 Positions are for J2000
Event circumstances last updated at 2021/02/06 20:35:33 UT
Marc W. Buie, Southwest Research Institute