Event between 10AV153 and star GA0940:03438971 with event index number of 2076625
Geocentric closest approach at 2022/02/10 18:50:45 UTC
J2000 position of star is 09:47:18.6 +05:55:18
Equinox of date position of star is 09:48:28.2 +05:49:06
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 71 degrees from the moon.
Moon is 70% illuminated.
TNO apparent brightness V=22.0
TNO is 29.9 AU from the Sun
and 28.9 AU from the Earth.
The TNO is moving 24.0
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is
1132 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=209.9 km assuming a 5% albedo -- 8.8 sec chord
Diameter=85.7 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 3:2E
Star training set for 10AV153, (2022/02/10 18:50UT) Object RA Dec mag sep mel Regulus 10:09:32.8 +11:51:30 1.3 7.97 74 PPM 156172 09:47:19.9 +06:36:20 5.8 0.84 71 PPM 156196 09:48:47.2 +05:27:21 8.5 0.37 72 10AV153 09:48:28.2 +05:49:06 16.4 72 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 10AV153, (2022/02/10 18:50UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 7.97 74 PPM 156172 09:46:10.1 +06:42:30 5.8 0.84 71 PPM 156196 09:47:37.6 +05:33:33 8.5 0.37 72 10AV153 09:47:18.6 +05:55:18 16.4 71 Positions are for J2000
Event circumstances last updated at 2022/02/08 00:09:42 UT
Marc W. Buie, Southwest Research Institute