Event between (612218) 01KD77 and star GA0680:40338667 with event index number of 2810673
Geocentric closest approach at 2023/07/06 16:23:50 UTC
J2000 position of star is 19:16:25.7 -21:03:28
Equinox of date position of star is 19:17:45.2 -21:01:01
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 42 degrees from the moon.
Moon is 85% illuminated.
TNO apparent brightness V=21.2
TNO is 36.9 AU from the Sun
and 35.9 AU from the Earth.
The TNO is moving 24.2
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 854 seconds.
The 1-sigma cross-track error in the shadow position is
5583 km.
The TNO has an absolute magnitude Hv=5.6
Diameter=455.0 km assuming a 5% albedo -- 18.8 sec chord
Diameter=185.8 km assuming a 30% albedo -- 7.7 sec chord
Dynamical classification is 3:2E
Star training set for 612218, (2023/07/06 16:24UT) Object RA Dec mag sep mel Antares 16:30:51.2 -26:28:56 0.9 38.43 79 Nunki 18:56:43.3 -26:15:55 2.0 7.13 47 PPM 269651 19:22:02.6 -22:21:25 5.8 1.66 41 PPM 269573 19:18:38.7 -21:01:42 7.8 0.19 42 PPM 269535 19:17:05.1 -21:01:00 9.9 0.17 42 612218 19:17:49.4 -21:00:53 16.2 42 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 612218, (2023/07/06 16:24UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 38.43 79 Nunki 18:55:15.9 -26:17:49 2.0 7.13 47 PPM 269651 19:20:38.2 -22:24:09 5.8 1.66 41 PPM 269573 19:17:15.0 -21:04:19 7.8 0.19 42 PPM 269535 19:15:41.4 -21:03:34 9.9 0.17 42 612218 19:16:25.7 -21:03:28 16.2 42 Positions are for J2000
Event circumstances last updated at 2022/05/03 01:22:43 UT
Marc W. Buie, Southwest Research Institute