Event between (470309) 07JK43 and star GA1000:05707052 with event index number of 2228633
Geocentric closest approach at 2023/08/14 21:00:12 UTC
J2000 position of star is 18:14:44.7 +11:36:06
Equinox of date position of star is 18:15:50.7 +11:36:38
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 131 degrees from the moon.
Moon is 2% illuminated.
Apparent brightness V=21.6
Object is 25.8 AU from the Sun
and 25.2 AU from the Earth.
Apparent velocity is 16.5
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 63 seconds.
The 1-sigma cross-track error in the shadow position is
1015 km.
The object has an absolute magnitude Hv=7.3
Diameter=209.9 km assuming a 5% albedo -- 12.7 sec chord
Diameter=85.7 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is CENTAURS
Star training set for 470309, (2023/08/14 21:00UT) Object RA Dec mag sep mel Vega 18:37:44.3 +38:48:24 0.0 27.63 112 Rasalhague 17:36:01.9 +12:32:41 2.1 9.78 123 PPM 134528 18:19:29.9 +12:59:29 6.3 1.64 130 PPM 134420 18:14:31.1 +11:53:32 6.9 0.43 130 PPM 134465 18:16:39.3 +11:51:24 8.7 0.32 131 PPM 134443 18:15:49.9 +11:24:30 10.3 0.20 131 470309 18:15:50.9 +11:36:38 16.1 131 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 470309, (2023/08/14 21:00UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 27.63 112 Rasalhague 17:34:56.3 +12:33:31 2.1 9.78 123 PPM 134528 18:18:24.5 +12:58:50 6.3 1.64 130 PPM 134420 18:13:25.1 +11:53:03 6.9 0.43 130 PPM 134465 18:15:33.3 +11:50:51 8.7 0.32 131 PPM 134443 18:14:43.6 +11:23:58 10.3 0.20 131 470309 18:14:44.7 +11:36:06 16.1 131 Positions are for J2000
Event circumstances last updated at 2023/07/28 03:52:59 UT
Marc W. Buie, Southwest Research Institute