Event between (612688) 03UT292 and star GA0920:02720262 with event index number of 2817588
Geocentric closest approach at 2028/02/15 22:09:55 UTC
J2000 position of star is 07:23:12.3 +03:58:21
Equinox of date position of star is 07:24:23.0 +03:55:40
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 105 degrees from the moon.
Moon is 65% illuminated.
TNO apparent brightness V=21.6
TNO is 27.7 AU from the Sun
and 27.0 AU from the Earth.
The TNO is moving 19.2
km/sec on the sky relative to the star, or,
3.5 arcsec/hr.
The 1-sigma error in the time of the event is 450 seconds.
The 1-sigma cross-track error in the shadow position is
3074 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=231.2 km assuming a 5% albedo -- 12.0 sec chord
Diameter=94.4 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is 3:2E
Star training set for 612688, (2028/02/15 22:10UT) Object RA Dec mag sep mel Betelgeuse 05:56:41.7 +07:24:36 0.4 22.16 127 Alhena 06:39:20.2 +16:22:22 1.9 16.71 119 PPM 152438 07:22:12.4 +03:31:38 6.2 0.73 105 PPM 152448 07:22:31.0 +04:00:06 8.4 0.55 105 PPM 152525 07:24:20.9 +03:40:48 9.0 0.25 105 612688 07:24:41.2 +03:54:59 16.7 104 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 612688, (2028/02/15 22:10UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 22.16 127 Alhena 06:37:42.8 +16:23:56 1.9 16.71 119 PPM 152438 07:20:43.7 +03:34:54 6.2 0.73 105 PPM 152448 07:21:02.1 +04:03:23 8.4 0.55 105 PPM 152525 07:22:52.1 +03:44:09 9.0 0.25 105 612688 07:23:12.3 +03:58:21 16.7 105 Positions are for J2000
Event circumstances last updated at 2022/05/22 23:08:32 UT
Marc W. Buie, Southwest Research Institute