Event between (470308) 07JH43 and star GA0640:09031242 with event index number of 2219012
Geocentric closest approach at 2022/02/06 17:02:01 UTC
J2000 position of star is 16:53:10.2 -25:30:25
Equinox of date position of star is 16:54:31.1 -25:32:30
Stellar brightness G=15.7,
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 32% illuminated.
TNO apparent brightness V=20.7
TNO is 40.5 AU from the Sun
and 41.0 AU from the Earth.
The TNO is moving 18.7
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 113 seconds.
The 1-sigma cross-track error in the shadow position is
1649 km.
The TNO has an absolute magnitude Hv=4.5
Diameter=758.6 km assuming a 5% albedo -- 40.5 sec chord
Diameter=309.7 km assuming a 30% albedo -- 16.5 sec chord
Dynamical classification is SCATNEAR
Star training set for 470308, (2022/02/06 17:02UT) Object RA Dec mag sep mel Antares 16:30:46.0 -26:28:45 0.9 5.42 137 23Tau Sco 16:37:15.7 -28:15:36 2.8 4.71 135 26 Oph 17:01:30.9 -25:01:15 5.8 1.66 130 PPM 266070 16:53:37.6 -25:38:10 7.2 0.22 132 470308 16:54:31.7 -25:32:31 15.7 131 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 470308, (2022/02/06 17:02UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 5.42 137 23Tau Sco 16:35:52.9 -28:12:58 2.8 4.71 135 26 Oph 17:00:09.6 -24:59:22 5.8 1.66 130 PPM 266070 16:52:16.1 -25:36:02 7.2 0.22 132 470308 16:53:10.2 -25:30:25 15.7 132 Positions are for J2000
Event circumstances last updated at 2021/12/06 01:46:09 UT
Marc W. Buie, Southwest Research Institute