Event between (418993) 09MS9 and star GA0700:00314451 with event index number of 2217377
Geocentric closest approach at 2025/03/06 00:35:31 UTC
J2000 position of star is 04:10:43.9 -18:02:52
Equinox of date position of star is 04:11:48.0 -17:59:13
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 45 degrees from the moon.
Moon is 43% illuminated.
Apparent brightness V=23.6
Object is 23.2 AU from the Sun
and 23.4 AU from the Earth.
Apparent velocity is 17.5
km/sec on the sky relative to the star, or,
3.7 arcsec/hr.
The 1-sigma error in the time of the event is 75 seconds.
The 1-sigma cross-track error in the shadow position is
1177 km.
The object has an absolute magnitude Hv=9.7
Diameter=67.9 km assuming a 5% albedo -- 3.9 sec chord
Diameter=27.7 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURS
Star training set for 418993, (2025/03/06 00:36UT) Object RA Dec mag sep mel Rigel 05:15:44.9 -08:10:28 0.1 18.37 37 Nihal 05:29:19.5 -20:44:27 2.8 18.47 50 PPM 213983 04:13:08.4 -17:12:43 6.5 0.83 44 PPM 213982 04:13:07.6 -17:48:17 8.4 0.35 44 PPM 213931 04:11:04.6 -17:56:56 9.4 0.19 44 418993 04:11:51.6 -17:59:01 16.8 44 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 418993, (2025/03/06 00:36UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 18.37 37 Nihal 05:28:14.7 -20:45:36 2.8 18.47 50 PPM 213983 04:12:00.3 -17:16:30 6.5 0.83 44 PPM 213982 04:11:59.9 -17:52:05 8.4 0.35 44 PPM 213931 04:09:56.9 -18:00:48 9.4 0.19 44 418993 04:10:43.9 -18:02:52 16.8 44 Positions are for J2000
Event circumstances last updated at 2023/11/11 05:30:06 UT
Marc W. Buie, Southwest Research Institute