Event between (129746) 99CE119 and star GA0680:07300051 with event index number of 2688313
Geocentric closest approach at 2029/02/17 22:18:58 UTC
J2000 position of star is 16:37:54.8 -20:39:15
Equinox of date position of star is 16:39:20.8 -20:42:03
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 128 degrees from the moon.
Moon is 18% illuminated.
Apparent brightness V=23.4
Object is 30.5 AU from the Sun
and 30.6 AU from the Earth.
Apparent velocity is 12.4
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 466 seconds.
The 1-sigma cross-track error in the shadow position is
1809 km.
The object has an absolute magnitude Hv=8.4
Diameter=128.2 km assuming a 5% albedo -- 10.4 sec chord
Diameter=52.4 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 3:2E
Star training set for 129746, (2029/02/17 22:19UT) Object RA Dec mag sep mel Antares 16:31:11.9 -26:29:38 0.9 6.10 129 23Tau Sco 16:37:42.1 -28:16:26 2.8 7.58 128 PPM 232040 16:43:36.7 -19:58:40 5.8 1.19 127 PPM 265647 16:34:09.5 -20:48:44 8.3 1.28 129 PPM 265756 16:40:18.9 -20:47:36 9.7 0.18 128 129746 16:39:38.2 -20:42:37 15.7 127 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 129746, (2029/02/17 22:19UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 6.10 129 23Tau Sco 16:35:52.9 -28:12:58 2.8 7.58 128 PPM 232040 16:41:53.8 -19:55:27 5.8 1.19 127 PPM 265647 16:32:26.2 -20:45:08 8.3 1.28 129 PPM 265756 16:38:35.5 -20:44:15 9.7 0.18 128 129746 16:37:54.8 -20:39:15 15.7 128 Positions are for J2000
Event circumstances last updated at 2024/03/21 22:36:21 UT
Marc W. Buie, Southwest Research Institute