Event between (530955) 11YN79 and star GA1220:03462548 with event index number of 1600069
Geocentric closest approach at 2024/02/29 14:15:56 UTC
J2000 position of star is 10:07:40.7 +32:36:04
Equinox of date position of star is 10:09:03.9 +32:29:00
Stellar brightness G=15.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 75 degrees from the moon.
Moon is 79% illuminated.
Apparent brightness V=22.2
Object is 39.4 AU from the Sun
and 38.5 AU from the Earth.
Apparent velocity is 23.3
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 122 seconds.
The 1-sigma cross-track error in the shadow position is
1580 km.
The object has an absolute magnitude Hv=6.2
Diameter=350.0 km assuming a 5% albedo -- 15.2 sec chord
Diameter=142.9 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is SCATNEAR
Star training set for 530955, (2024/02/29 14:17UT) Object RA Dec mag sep mel Regulus 10:09:39.4 +11:50:53 1.3 20.63 66 68Del Leo 11:15:23.4 +20:23:28 2.6 19.10 56 20 LMi 10:02:24.0 +31:48:15 5.4 1.57 76 PPM 074960 10:05:40.2 +32:20:04 8.4 0.73 76 PPM 075004 10:08:48.1 +32:05:20 10.0 0.40 75 PPM 075009 10:09:36.9 +32:42:24 10.8 0.25 75 530955 10:09:04.7 +32:28:56 15.3 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 530955, (2024/02/29 14:17UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 20.63 66 68Del Leo 11:14:06.7 +20:31:23 2.6 19.10 56 20 LMi 10:00:59.8 +31:55:16 5.4 1.57 76 PPM 074960 10:04:16.1 +32:27:08 8.4 0.73 76 PPM 075004 10:07:24.3 +32:12:28 10.0 0.40 75 PPM 075009 10:08:13.0 +32:49:33 10.8 0.25 75 530955 10:07:40.7 +32:36:04 15.3 75 Positions are for J2000
Event circumstances last updated at 2023/12/15 05:25:05 UT
Marc W. Buie, Southwest Research Institute