Event between (20108) 95QZ9 and star GA0940:00343161 with event index number of 1388922
Geocentric closest approach at 2024/12/30 17:50:53 UTC
J2000 position of star is 03:52:01.7 +04:21:38
Equinox of date position of star is 03:53:11.2 +04:25:30
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 135 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=23.6
TNO is 38.5 AU from the Sun
and 37.8 AU from the Earth.
The TNO is moving 18.2
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 842 seconds.
The 1-sigma cross-track error in the shadow position is
1432 km.
The TNO has an absolute magnitude Hv=7.7
Diameter=173.8 km assuming a 5% albedo -- 9.6 sec chord
Diameter=70.9 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E
Star training set for 20108, (2024/12/30 17:51UT) Object RA Dec mag sep mel Aldebaran 04:37:21.5 +16:33:27 0.8 16.23 151 Menkar 03:03:35.4 +04:11:11 2.5 12.41 125 PPM 147062 03:58:21.6 +06:06:38 6.3 2.09 137 PPM 147029 03:56:01.1 +05:01:18 8.2 0.89 136 PPM 146950 03:51:11.3 +04:09:56 9.9 0.60 134 PPM 146983 03:53:04.0 +04:16:55 11.0 0.17 135 20108 03:53:20.7 +04:26:02 16.4 135 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 20108, (2024/12/30 17:51UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 16.23 151 Menkar 03:02:16.8 +04:05:21 2.5 12.41 125 PPM 147062 03:57:01.7 +06:02:23 6.3 2.09 137 PPM 147029 03:54:41.7 +04:56:59 8.2 0.89 136 PPM 146950 03:49:52.4 +04:05:28 9.9 0.60 134 PPM 146983 03:51:45.0 +04:12:31 11.0 0.17 135 20108 03:52:01.7 +04:21:38 16.4 135 Positions are for J2000
Event circumstances last updated at 2021/12/26 23:58:10 UT
Marc W. Buie, Southwest Research Institute