Event between (500838) 13GV137 and star GA0740:05322466 with event index number of 2328972
Geocentric closest approach at 2022/02/28 07:51:41 UTC
J2000 position of star is 14:58:59.2 -15:35:55
Equinox of date position of star is 15:00:12.4 -15:41:06
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 81 degrees from the moon.
Moon is 8% illuminated.
TNO apparent brightness V=23.6
TNO is 46.2 AU from the Sun
and 45.8 AU from the Earth.
The TNO is moving 6.9
km/sec on the sky relative to the star, or,
0.8 arcsec/hr.
The 1-sigma error in the time of the event is 1709 seconds.
The 1-sigma cross-track error in the shadow position is
5881 km.
The TNO has an absolute magnitude Hv=6.8
Diameter=263.0 km assuming a 5% albedo -- 38.0 sec chord
Diameter=107.4 km assuming a 30% albedo -- 15.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 500838, (2022/02/28 07:52UT) Object RA Dec mag sep mel Spica 13:26:21.8 -11:16:35 1.0 23.22 104 27Bet Lib 15:18:12.2 -09:27:48 2.6 7.61 79 21Nu Lib 15:07:52.0 -16:20:29 5.2 1.95 79 PPM 229578 15:00:06.7 -15:31:26 8.5 0.16 81 PPM 229589 15:00:39.1 -15:35:46 9.5 0.14 81 500838 15:00:13.2 -15:41:09 16.6 81 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 500838, (2022/02/28 07:52UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 23.22 104 27Bet Lib 15:17:00.3 -09:22:59 2.6 7.61 79 21Nu Lib 15:06:37.6 -16:15:25 5.2 1.95 79 PPM 229578 14:58:52.7 -15:26:12 8.5 0.16 81 PPM 229589 14:59:25.1 -15:30:32 9.5 0.14 81 500838 14:58:59.2 -15:35:55 16.6 81 Positions are for J2000
Event circumstances last updated at 2021/12/06 01:47:18 UT
Marc W. Buie, Southwest Research Institute