Event between (86047) 99OY3 and star GA0920:17965878 with event index number of 2408772
Geocentric closest approach at 2023/07/15 14:26:24 UTC
J2000 position of star is 22:08:42.9 +03:24:35
Equinox of date position of star is 22:09:53.7 +03:31:29
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon.
Moon is 5% illuminated.
Apparent brightness V=23.2
Object is 42.6 AU from the Sun
and 41.9 AU from the Earth.
Apparent velocity is 18.4
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 220 seconds.
The 1-sigma cross-track error in the shadow position is
3621 km.
The object has an absolute magnitude Hv=6.8
Diameter=264.2 km assuming a 5% albedo -- 14.4 sec chord
Diameter=107.9 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is SCATEXTD
Star training set for 86047, (2023/07/15 14:26UT) Object RA Dec mag sep mel Fomalhaut 22:58:56.7 -29:29:49 1.2 35.05 115 Markab 23:05:56.1 +15:19:56 2.5 18.15 93 26The Peg 22:11:23.2 +06:18:52 3.5 2.81 109 PPM 172709 22:10:21.0 +02:50:59 6.9 0.69 112 PPM 172682 22:08:49.6 +03:31:50 9.2 0.27 111 86047 22:09:54.4 +03:31:33 16.8 111 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 86047, (2023/07/15 14:26UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 35.05 115 Markab 23:04:45.8 +15:12:18 2.5 18.15 93 26The Peg 22:10:12.4 +06:11:53 3.5 2.81 109 PPM 172709 22:09:09.3 +02:44:01 6.9 0.69 112 PPM 172682 22:07:38.1 +03:24:53 9.2 0.27 111 86047 22:08:42.9 +03:24:35 16.8 111 Positions are for J2000
Event circumstances last updated at 2023/04/20 03:44:13 UT
Marc W. Buie, Southwest Research Institute