Event between (470309) 07JK43 and star GA1020:05985197 with event index number of 2228898
Geocentric closest approach at 2024/08/01 19:53:47 UTC
J2000 position of star is 18:26:58.4 +13:32:12
Equinox of date position of star is 18:28:05.8 +13:33:11
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 138 degrees from the moon.
Moon is 7% illuminated.
Apparent brightness V=21.6
Object is 26.1 AU from the Sun
and 25.4 AU from the Earth.
Apparent velocity is 19.9
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is
1061 km.
The object has an absolute magnitude Hv=7.3
Diameter=209.9 km assuming a 5% albedo -- 10.5 sec chord
Diameter=85.7 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CENTAURS
Star training set for 470309, (2024/08/01 19:54UT) Object RA Dec mag sep mel Vega 18:37:46.2 +38:48:27 0.0 25.34 113 Rasalhague 17:36:04.6 +12:32:39 2.1 12.71 136 PPM 134713 18:27:02.1 +14:58:55 6.2 1.45 137 PPM 134795 18:30:35.2 +13:52:21 7.4 0.68 138 PPM 134755 18:29:03.4 +13:21:32 9.7 0.30 138 470309 18:28:06.2 +13:33:11 15.4 138 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, (2024/08/01 19:54UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 25.34 113 Rasalhague 17:34:56.3 +12:33:31 2.1 12.71 136 PPM 134713 18:25:55.2 +14:57:58 6.2 1.45 137 PPM 134795 18:29:27.6 +13:51:17 7.4 0.68 138 PPM 134755 18:27:55.5 +13:20:31 9.7 0.30 138 470309 18:26:58.4 +13:32:12 15.4 138 Positions are for J2000
Event circumstances last updated at 2024/06/11 03:49:26 UT
Marc W. Buie, Southwest Research Institute