Event between (523780) 15AN281 and star GA1020:03562897 with event index number of 2353906
Geocentric closest approach at 2027/06/11 09:40:46 UTC
J2000 position of star is 12:22:36.5 +12:47:10
Equinox of date position of star is 12:23:51.0 +12:39:02
Stellar brightness G=14.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 20 degrees from the moon.
Moon is 50% illuminated.
Apparent brightness V=21.6
Object is 42.2 AU from the Sun
and 42.0 AU from the Earth.
Apparent velocity is 7.8
km/sec on the sky relative to the star, or,
0.9 arcsec/hr.
The 1-sigma error in the time of the event is 233 seconds.
The 1-sigma cross-track error in the shadow position is
2091 km.
The object has an absolute magnitude Hv=5.2
Diameter=544.5 km assuming a 5% albedo -- 71.5 sec chord
Diameter=222.3 km assuming a 30% albedo -- 29.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 523780, (2027/06/11 09:44UT) Object RA Dec mag sep mel Arcturus 14:16:55.2 +19:02:36 0.0 27.87 47 Denebola 11:50:27.6 +14:25:07 2.1 8.34 15 6 Com 12:17:23.7 +14:44:47 5.1 2.65 20 PPM 128969 12:21:28.3 +13:42:09 7.8 1.23 20 PPM 128984 12:22:48.5 +12:31:41 10.0 0.31 20 PPM 129011 12:24:48.6 +12:42:03 11.0 0.21 20 523780 12:24:00.1 +12:38:03 14.9 20 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 523780, (2027/06/11 09:44UT) Object RA Dec mag sep mel Arcturus 14:15:38.0 +19:10:12 0.0 27.87 47 Denebola 11:49:02.8 +14:34:17 2.1 8.34 15 6 Com 12:16:00.1 +14:53:56 5.1 2.65 20 PPM 128969 12:20:04.8 +13:51:17 7.8 1.23 20 PPM 128984 12:21:24.9 +12:40:49 10.0 0.31 20 PPM 129011 12:23:25.1 +12:51:10 11.0 0.21 20 523780 12:22:36.5 +12:47:10 14.9 20 Positions are for J2000
Event circumstances last updated at 2024/06/21 21:28:48 UT
Marc W. Buie, Southwest Research Institute