Event between (528219) 08KV42 and star GA1420:04834328 with event index number of 1597022
Geocentric closest approach at 2021/06/29 18:04:30 UTC
J2000 position of star is 16:13:47.5 +52:59:54
Equinox of date position of star is 16:14:19.1 +52:56:44
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 107 degrees from the moon.
Moon is 71% illuminated.
TNO apparent brightness V=23.0
TNO is 25.0 AU from the Sun
and 24.8 AU from the Earth.
The TNO is moving 27.2
km/sec on the sky relative to the star, or,
5.4 arcsec/hr.
The 1-sigma error in the time of the event is 50 seconds.
The 1-sigma cross-track error in the shadow position is
2926 km.
The TNO has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 3.9 sec chord
Diameter=42.8 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 528219, (2021/06/29 18:05UT) Object RA Dec mag sep mel Vega 18:37:40.0 +38:48:17 0.0 28.26 80 23Bet Dra 17:30:55.2 +52:17:10 2.8 11.61 95 PPM 035211 15:58:18.2 +54:41:23 4.9 2.94 109 PPM 035369 16:16:18.9 +53:11:02 7.4 0.38 107 PPM 035361 16:14:48.8 +52:45:01 10.6 0.21 107 528219 16:14:19.5 +52:56:42 16.7 107 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 528219, (2021/06/29 18:05UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 28.26 80 23Bet Dra 17:30:25.9 +52:18:05 2.8 11.61 95 PPM 035211 15:57:47.1 +54:45:02 4.9 2.94 109 PPM 035369 16:15:47.3 +53:14:11 7.4 0.38 107 PPM 035361 16:14:16.6 +52:48:13 10.6 0.21 107 528219 16:13:47.5 +52:59:54 16.7 107 Positions are for J2000
Event circumstances last updated at 2021/04/10 00:38:11 UT
Marc W. Buie, Southwest Research Institute