Event between (612352) 02GY32 and star GA0680:07367941 with event index number of 2813049
Geocentric closest approach at 2023/07/09 13:32:35 UTC
J2000 position of star is 16:31:39.9 -21:06:18
Equinox of date position of star is 16:32:59.3 -21:09:06
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 121 degrees from the moon.
Moon is 56% illuminated.
TNO apparent brightness V=23.1
TNO is 36.9 AU from the Sun
and 36.1 AU from the Earth.
The TNO is moving 18.2
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 445 seconds.
The 1-sigma cross-track error in the shadow position is
2822 km.
The TNO has an absolute magnitude Hv=7.4
Diameter=198.6 km assuming a 5% albedo -- 10.9 sec chord
Diameter=81.1 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is 3:2E
Star training set for 612352, (2023/07/09 13:33UT) Object RA Dec mag sep mel Antares 16:30:51.2 -26:28:56 0.9 5.35 121 8Bet1Sco 16:06:48.5 -19:52:05 2.6 6.28 127 4Psi Oph 16:25:29.0 -20:05:26 4.2 2.07 123 PPM 265647 16:33:49.6 -20:48:03 8.3 0.40 121 PPM 265653 16:34:06.5 -21:02:20 9.4 0.27 121 PPM 265633 16:33:11.3 -21:04:47 10.2 0.08 121 612352 16:33:03.5 -21:09:14 15.1 121 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 612352, (2023/07/09 13:33UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 5.35 121 8Bet1Sco 16:05:26.2 -19:48:20 2.6 6.28 127 4Psi Oph 16:24:06.1 -20:02:15 4.2 2.07 123 PPM 265647 16:32:26.2 -20:45:08 8.3 0.40 121 PPM 265653 16:32:43.0 -20:59:26 9.4 0.27 121 PPM 265633 16:31:47.7 -21:01:51 10.2 0.08 121 612352 16:31:39.9 -21:06:18 15.1 121 Positions are for J2000
Event circumstances last updated at 2022/05/03 01:24:07 UT
Marc W. Buie, Southwest Research Institute