Event between (471954) 13RM98 and star GA0980:00015574 with event index number of 2456803
Geocentric closest approach at 2025/10/23 17:06:40 UTC
J2000 position of star is 00:09:41.4 +09:13:01
Equinox of date position of star is 00:10:55.0 +09:21:00
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 132 degrees from the moon.
Moon is 4% illuminated.
Apparent brightness V=22.3
Object is 45.9 AU from the Sun
and 45.0 AU from the Earth.
Apparent velocity is 23.3
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 112 seconds.
The 1-sigma cross-track error in the shadow position is
2713 km.
The object has an absolute magnitude Hv=5.7
Diameter=426.6 km assuming a 5% albedo -- 18.5 sec chord
Diameter=174.2 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is SCATEXTD
Star training set for 471954, (2025/10/23 17:07UT) Object RA Dec mag sep mel Algenib 00:14:34.1 +15:19:37 2.8 6.03 135 32 Psc 00:03:49.0 +08:37:44 5.8 1.92 130 PPM 143241 00:13:07.2 +09:16:59 8.2 0.52 132 PPM 143208 00:11:19.2 +09:20:37 9.5 0.08 132 PPM 143200 00:10:54.4 +09:21:32 10.8 0.03 132 471954 00:11:01.0 +09:21:38 15.8 132 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 471954, (2025/10/23 17:07UT) Object RA Dec mag sep mel Algenib 00:13:14.2 +15:11:01 2.8 6.03 135 32 Psc 00:02:29.6 +08:29:07 5.8 1.92 130 PPM 143241 00:11:47.5 +09:08:23 8.2 0.52 132 PPM 143208 00:09:59.6 +09:12:01 9.5 0.08 132 PPM 143200 00:09:34.8 +09:12:56 10.8 0.03 132 471954 00:09:41.4 +09:13:01 15.8 132 Positions are for J2000
Event circumstances last updated at 2023/11/18 04:57:03 UT
Marc W. Buie, Southwest Research Institute