Event between (524435) 02CY248 and star GA1000:03365961 with event index number of 1592122
Geocentric closest approach at 2021/12/15 22:09:35 UTC
J2000 position of star is 09:38:31.5 +11:19:13
Equinox of date position of star is 09:39:41.8 +11:13:16
Stellar brightness G=13.2,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 94 degrees from the moon.
Moon is 91% illuminated.
TNO apparent brightness V=22.5
TNO is 50.5 AU from the Sun
and 50.0 AU from the Earth.
The TNO is moving 11.8
km/sec on the sky relative to the star, or,
1.2 arcsec/hr.
The 1-sigma error in the time of the event is 475 seconds.
The 1-sigma cross-track error in the shadow position is
4512 km.
The TNO has an absolute magnitude Hv=5.4
Diameter=494.3 km assuming a 5% albedo -- 42.0 sec chord
Diameter=201.8 km assuming a 30% albedo -- 17.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 524435, (2021/12/15 22:12UT) Object RA Dec mag sep mel Regulus 10:09:32.4 +11:51:33 1.3 7.34 101 14Omi Leo 09:42:19.2 +09:47:29 3.5 1.57 95 PPM 126619 09:37:32.9 +11:20:00 8.5 0.54 94 PPM 126641 09:39:08.5 +11:13:46 8.9 0.14 94 524435 09:39:42.4 +11:13:13 13.2 95 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 524435, (2021/12/15 22:12UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 7.34 101 14Omi Leo 09:41:08.8 +09:53:32 3.5 1.57 95 PPM 126619 09:36:21.9 +11:25:57 8.5 0.54 94 PPM 126641 09:37:57.6 +11:19:45 8.9 0.14 94 524435 09:38:31.5 +11:19:13 13.2 94 Positions are for J2000
Event circumstances last updated at 2021/10/11 01:43:56 UT
Marc W. Buie, Southwest Research Institute