Event between (427507) 02DH5 and star GA0900:04668501 with event index number of 1115852
Geocentric closest approach at 2021/04/13 03:19:09 UTC
J2000 position of star is 16:35:09.8 +01:24:53
Equinox of date position of star is 16:36:14.1 +01:22:21
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 143 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=23.9
TNO is 23.4 AU from the Sun
and 22.8 AU from the Earth.
The TNO is moving 17.7
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 362 seconds.
The 1-sigma cross-track error in the shadow position is
3994 km.
The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 3.3 sec chord
Diameter=23.5 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 427507, (2021/04/13 03:19UT) Object RA Dec mag sep mel Antares 16:30:42.9 -26:28:39 0.9 27.88 144 1Del Oph 16:15:27.8 -03:44:51 2.7 7.29 149 14 Oph 16:42:47.3 +01:08:32 6.0 1.65 142 PPM 162854 16:37:07.6 +01:20:20 7.9 0.22 143 427507 16:36:14.6 +01:22:20 16.1 143 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 427507, (2021/04/13 03:19UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 27.88 144 1Del Oph 16:14:20.7 -03:41:43 2.7 7.29 149 14 Oph 16:41:42.4 +01:10:53 6.0 1.65 142 PPM 162854 16:36:02.8 +01:22:51 7.9 0.22 143 427507 16:35:09.8 +01:24:53 16.1 143 Positions are for J2000
Event circumstances last updated at 2021/02/06 20:52:43 UT
Marc W. Buie, Southwest Research Institute