Event between (118698) 00OY51 and star GA0900:16414754 with event index number of 2111553
Geocentric closest approach at 2028/06/17 11:26:59 UTC
J2000 position of star is 22:31:57.0 +00:33:41
Equinox of date position of star is 22:33:09.7 +00:41:02
Stellar brightness G=14.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 42 degrees from the moon.
Moon is 29% illuminated.
Apparent brightness V=23.8
Object is 34.3 AU from the Sun
and 34.0 AU from the Earth.
Apparent velocity is 5.7
km/sec on the sky relative to the star, or,
0.8 arcsec/hr.
The 1-sigma error in the time of the event is 1629 seconds.
The 1-sigma cross-track error in the shadow position is
5237 km.
The object has an absolute magnitude Hv=8.3
Diameter=134.9 km assuming a 5% albedo -- 23.5 sec chord
Diameter=55.1 km assuming a 30% albedo -- 9.6 sec chord
Dynamical classification is 7:4EEE
Star training set for 118698, (2028/06/17 11:27UT) Object RA Dec mag sep mel Fomalhaut 22:59:12.9 -29:28:14 1.2 30.80 54 Markab 23:06:10.8 +15:21:32 2.5 16.74 31 55Zet1Aqr 22:30:17.7 +00:07:35 4.0 0.97 43 PPM 173160 22:34:08.6 +01:15:04 8.2 0.57 42 PPM 173150 22:33:33.5 +00:32:32 9.4 0.17 42 118698 22:33:24.4 +00:42:31 14.5 42 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 118698, (2028/06/17 11:27UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.7 -29:37:24 1.2 30.80 54 Markab 23:04:45.8 +15:12:18 2.5 16.74 31 55Zet1Aqr 22:28:50.2 -00:01:12 4.0 0.97 43 PPM 173160 22:32:41.4 +01:06:14 8.2 0.57 42 PPM 173150 22:32:06.1 +00:23:43 9.4 0.17 42 118698 22:31:57.0 +00:33:41 14.5 42 Positions are for J2000
Event circumstances last updated at 2023/09/04 00:56:08 UT
Marc W. Buie, Southwest Research Institute