Event between (150642) 01CZ31 and star GA1000:03510108 with event index number of 2656632
Geocentric closest approach at 2025/04/29 14:42:33 UTC
J2000 position of star is 11:21:12.7 +10:12:17
Equinox of date position of star is 11:22:28.5 +10:04:17
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 101 degrees from the moon.
Moon is 5% illuminated.
Apparent brightness V=22.1
Object is 39.9 AU from the Sun
and 39.3 AU from the Earth.
Apparent velocity is 13.7
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 217 seconds.
The 1-sigma cross-track error in the shadow position is
2098 km.
The object has an absolute magnitude Hv=6.0
Diameter=383.7 km assuming a 5% albedo -- 28.0 sec chord
Diameter=156.7 km assuming a 30% albedo -- 11.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 150642, (2025/04/29 14:45UT) Object RA Dec mag sep mel Regulus 10:09:43.1 +11:50:33 1.3 17.95 85 Denebola 11:50:21.1 +14:25:50 2.1 8.08 105 PPM 128238 11:26:17.7 +11:17:27 5.8 1.54 102 PPM 157726 11:20:25.8 +09:36:44 8.1 0.69 101 PPM 128164 11:20:53.5 +09:56:11 10.0 0.42 101 PPM 128192 11:22:59.5 +10:23:02 10.4 0.34 101 150642 11:22:31.6 +10:03:57 15.6 102 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 150642, (2025/04/29 14:45UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 17.95 85 Denebola 11:49:02.8 +14:34:17 2.1 8.08 105 PPM 128238 11:24:58.8 +11:25:49 5.8 1.54 102 PPM 157726 11:19:06.9 +09:45:03 8.1 0.69 101 PPM 128164 11:19:34.6 +10:04:31 10.0 0.42 101 PPM 128192 11:21:40.6 +10:31:22 10.4 0.34 101 150642 11:21:12.7 +10:12:17 15.6 101 Positions are for J2000
Event circumstances last updated at 2024/04/23 03:21:56 UT
Marc W. Buie, Southwest Research Institute