Event between (129772) 99HR11 and star GA0760:05040962 with event index number of 1222287
Geocentric closest approach at 2023/05/02 15:06:07 UTC
J2000 position of star is 14:43:18.1 -13:30:21
Equinox of date position of star is 14:44:34.7 -13:36:14
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 38 degrees from the moon.
Moon is 90% illuminated.
Apparent brightness V=23.5
Object is 42.2 AU from the Sun
and 41.2 AU from the Earth.
Apparent velocity is 24.9
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 150 seconds.
The 1-sigma cross-track error in the shadow position is
2403 km.
The object has an absolute magnitude Hv=7.3
Diameter=218.8 km assuming a 5% albedo -- 8.5 sec chord
Diameter=89.3 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is 7:4EEE
Star training set for 129772, (2023/05/02 15:06UT) Object RA Dec mag sep mel Spica 13:26:25.5 -11:16:57 1.0 19.21 20 27Bet Lib 15:18:16.0 -09:28:03 2.6 9.23 45 7Mu Lib 14:50:36.0 -14:14:41 5.8 1.60 39 PPM 229163 14:43:19.6 -13:57:10 8.2 0.46 38 PPM 229192 14:44:29.9 -13:29:02 9.9 0.12 38 129772 14:44:34.8 -13:36:15 16.5 38 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 129772, (2023/05/02 15:06UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 19.21 20 27Bet Lib 15:17:00.3 -09:22:59 2.6 9.23 45 7Mu Lib 14:49:18.9 -14:08:56 5.8 1.60 39 PPM 229163 14:42:02.8 -13:51:15 8.2 0.46 38 PPM 229192 14:43:13.3 -13:23:09 9.9 0.12 38 129772 14:43:18.1 -13:30:21 16.5 38 Positions are for J2000
Event circumstances last updated at 2023/04/19 02:33:16 UT
Marc W. Buie, Southwest Research Institute