Event between (353222) 09YD7 and star GA1140:03316856 with event index number of 2211649
Geocentric closest approach at 2024/06/19 07:51:45 UTC
J2000 position of star is 11:27:43.0 +25:38:22
Equinox of date position of star is 11:29:00.3 +25:30:17
Stellar brightness G=10.4,
use SENSEUP=4 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 76 degrees from the moon.
Moon is 92% illuminated.
Apparent brightness V=23.6
Object is 20.9 AU from the Sun
and 21.2 AU from the Earth.
Apparent velocity is 16.2
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 124 seconds.
The 1-sigma cross-track error in the shadow position is
1904 km.
The object has an absolute magnitude Hv=10.1
Diameter=60.8 km assuming a 5% albedo -- 3.6 sec chord
Diameter=24.8 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURS
Star training set for 353222, (2024/06/19 07:52UT) Object RA Dec mag sep mel Regulus 10:09:40.4 +11:50:48 1.3 23.17 86 68Del Leo 11:15:24.3 +20:23:22 2.6 6.00 75 PPM 101269 11:37:35.0 +27:38:45 5.9 2.87 75 PPM 101168 11:28:26.3 +24:53:34 7.8 0.63 75 PPM 101174 11:28:49.4 +25:22:44 9.3 0.13 76 353222 11:29:00.4 +25:30:17 10.4 75 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 353222, (2024/06/19 07:52UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 23.17 86 68Del Leo 11:14:06.7 +20:31:23 2.6 6.00 75 PPM 101269 11:36:18.0 +27:46:52 5.9 2.87 75 PPM 101168 11:27:08.9 +25:01:40 7.8 0.63 75 PPM 101174 11:27:32.0 +25:30:50 9.3 0.13 76 353222 11:27:43.0 +25:38:22 10.4 76 Positions are for J2000
Event circumstances last updated at 2024/06/11 03:46:08 UT
Marc W. Buie, Southwest Research Institute