Event between (418993) 09MS9 and star GA0680:00371691 with event index number of 2217412
Geocentric closest approach at 2026/10/04 19:29:39 UTC
J2000 position of star is 04:41:56.5 -21:57:46
Equinox of date position of star is 04:42:57.8 -21:55:07
Stellar brightness G=11.4,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 67 degrees from the moon.
Moon is 36% illuminated.
Apparent brightness V=23.9
Object is 25.2 AU from the Sun
and 24.8 AU from the Earth.
Apparent velocity is 25.9
km/sec on the sky relative to the star, or,
5.2 arcsec/hr.
The 1-sigma error in the time of the event is 69 seconds.
The 1-sigma cross-track error in the shadow position is
1240 km.
The object has an absolute magnitude Hv=9.7
Diameter=67.9 km assuming a 5% albedo -- 2.6 sec chord
Diameter=27.7 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURS
Star training set for 418993, (2026/10/04 19:30UT) Object RA Dec mag sep mel Rigel 05:15:49.5 -08:10:22 0.1 15.84 52 Nihal 05:29:23.6 -20:44:23 2.8 10.84 58 PPM 247975 04:46:13.3 -21:14:10 5.7 1.00 66 PPM 247919 04:44:12.3 -22:16:25 8.4 0.44 67 PPM 247909 04:43:52.0 -21:47:51 8.9 0.22 66 418993 04:43:05.2 -21:54:48 11.4 66 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, (2026/10/04 19:30UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 15.84 52 Nihal 05:28:14.7 -20:45:36 2.8 10.84 58 PPM 247975 04:45:04.2 -21:17:01 5.7 1.00 66 PPM 247919 04:43:03.9 -22:19:20 8.4 0.44 67 PPM 247909 04:42:43.2 -21:50:47 8.9 0.22 66 418993 04:41:56.5 -21:57:46 11.4 67 Positions are for J2000
Event circumstances last updated at 2023/11/21 04:26:40 UT
Marc W. Buie, Southwest Research Institute