Event between (470308) 07JH43 and star GA0620:11514833 with event index number of 2219196
Geocentric closest approach at 2023/03/23 23:20:01 UTC
J2000 position of star is 16:59:55.0 -26:12:29
Equinox of date position of star is 17:01:20.5 -26:14:27
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 136 degrees from the moon.
Moon is 7% illuminated.
Apparent brightness V=21.0
Object is 40.5 AU from the Sun
and 40.2 AU from the Earth.
Apparent velocity is 4.7
km/sec on the sky relative to the star, or,
0.6 arcsec/hr.
The 1-sigma error in the time of the event is 387 seconds.
The 1-sigma cross-track error in the shadow position is
2218 km.
The object has an absolute magnitude Hv=4.8
Diameter=758.6 km assuming a 5% albedo -- 139.1 sec chord
Diameter=309.7 km assuming a 30% albedo -- 56.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 470308, (2023/03/23 23:20UT) Object RA Dec mag sep mel Antares 16:30:50.1 -26:28:53 0.9 6.84 143 23Tau Sco 16:37:19.9 -28:15:44 2.8 5.71 141 26 Oph 17:01:35.0 -25:01:21 5.8 1.22 136 PPM 266235 17:00:53.8 -26:24:23 8.5 0.19 136 470308 17:01:21.2 -26:14:28 16.2 136 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 470308, (2023/03/23 23:20UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 6.84 143 23Tau Sco 16:35:52.9 -28:12:58 2.8 5.71 141 26 Oph 17:00:09.6 -24:59:22 5.8 1.22 136 PPM 266235 16:59:27.5 -26:22:23 8.5 0.19 136 470308 16:59:55.0 -26:12:29 16.2 136 Positions are for J2000
Event circumstances last updated at 2023/01/09 03:35:07 UT
Marc W. Buie, Southwest Research Institute