Event between (44594) 99OX3 and star GA1080:00304909 with event index number of 2291412
Geocentric closest approach at 2025/02/22 19:33:07 UTC
J2000 position of star is 02:55:01.9 +18:01:07
Equinox of date position of star is 02:56:23.6 +18:06:56
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 138 degrees from the moon.
Moon is 30% illuminated.
Apparent brightness V=19.9
Object is 17.6 AU from the Sun
and 17.9 AU from the Earth.
Apparent velocity is 17.3
km/sec on the sky relative to the star, or,
4.8 arcsec/hr.
The 1-sigma error in the time of the event is 49 seconds.
The 1-sigma cross-track error in the shadow position is
689 km.
The object has an absolute magnitude Hv=7.1
Diameter=231.2 km assuming a 5% albedo -- 13.5 sec chord
Diameter=94.4 km assuming a 30% albedo -- 5.5 sec chord
Dynamical classification is CENTAURR
Star training set for 44594, (2025/02/22 19:32UT) Object RA Dec mag sep mel Aldebaran 04:37:22.0 +16:33:29 0.8 24.12 159 Hamal 02:08:35.8 +23:34:49 2.0 12.43 130 46Rho3Ari 02:57:51.5 +18:07:19 5.6 0.34 139 PPM 118656 02:56:20.0 +17:50:07 7.4 0.29 138 PPM 118663 02:56:41.3 +17:59:32 8.9 0.14 138 44594 02:56:26.8 +18:07:10 15.8 139 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 44594, (2025/02/22 19:32UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 24.12 159 Hamal 02:07:10.7 +23:27:41 2.0 12.43 130 46Rho3Ari 02:56:26.6 +18:01:19 5.6 0.34 139 PPM 118656 02:54:55.2 +17:44:04 7.4 0.29 138 PPM 118663 02:55:16.4 +17:53:29 8.9 0.14 138 44594 02:55:01.9 +18:01:07 15.8 138 Positions are for J2000
Event circumstances last updated at 2024/03/05 04:24:17 UT
Marc W. Buie, Southwest Research Institute