Event between (531016) 12BZ154 and star GA0940:03328686 with event index number of 2444526
Geocentric closest approach at 2024/10/10 14:39:26 UTC
J2000 position of star is 08:57:11.0 +05:10:32
Equinox of date position of star is 08:58:21.3 +05:05:20
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 146 degrees from the moon.
Moon is 48% illuminated.
TNO apparent brightness V=23.1
TNO is 38.2 AU from the Sun
and 38.6 AU from the Earth.
The TNO is moving 20.3
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 175 seconds.
The 1-sigma cross-track error in the shadow position is
3540 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=230.2 km assuming a 5% albedo -- 11.4 sec chord
Diameter=94.0 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is SCATNEAR
Star training set for 531016, (2024/10/10 14:39UT) Object RA Dec mag sep mel Regulus 10:09:41.4 +11:50:43 1.3 18.85 136 Alphard 09:28:48.3 -08:46:02 2.0 15.77 131 16Zet Hya 08:56:42.1 +05:50:59 3.1 0.89 147 PPM 155197 08:56:44.5 +05:28:12 8.1 0.58 147 PPM 155218 08:57:39.9 +04:50:37 9.0 0.31 146 PPM 155215 08:57:34.2 +05:15:29 11.3 0.29 146 531016 08:58:29.3 +05:04:44 15.8 146 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 531016, (2024/10/10 14:39UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 18.85 136 Alphard 09:27:35.2 -08:39:30 2.0 15.77 131 16Zet Hya 08:55:23.5 +05:56:44 3.1 0.89 147 PPM 155197 08:55:26.0 +05:33:57 8.1 0.58 147 PPM 155218 08:56:21.7 +04:56:24 9.0 0.31 146 PPM 155215 08:56:15.8 +05:21:15 11.3 0.29 146 531016 08:57:11.0 +05:10:32 15.8 146 Positions are for J2000
Event circumstances last updated at 2022/03/29 23:19:33 UT
Marc W. Buie, Southwest Research Institute