Event between 03LD9 and star GA0700:21403553 with event index number of 1662379
Geocentric closest approach at 2021/08/01 18:00:13 UTC
J2000 position of star is 18:14:02.7 -19:08:19
Equinox of date position of star is 18:15:18.3 -19:07:51
Stellar brightness G=12.8,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 139 degrees from the moon.
Moon is 39% illuminated.
TNO apparent brightness V=23.0
TNO is 42.9 AU from the Sun
and 42.1 AU from the Earth.
The TNO is moving 18.9
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 702 seconds.
The 1-sigma cross-track error in the shadow position is
3066 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=295.1 km assuming a 5% albedo -- 15.6 sec chord
Diameter=120.5 km assuming a 30% albedo -- 6.4 sec chord
Dynamical classification is SCATNEAR
Star training set for 03LD9, (2021/08/01 18:00UT) Object RA Dec mag sep mel Antares 16:30:44.1 -26:28:41 0.9 25.14 162 Nunki 18:56:36.1 -26:16:05 2.0 11.89 130 PPM 234244 18:16:46.9 -18:39:11 6.1 0.59 139 PPM 234237 18:16:33.0 -18:59:04 7.6 0.33 139 PPM 234215 18:15:23.3 -19:11:28 9.5 0.06 139 03LD9 18:15:19.0 -19:07:51 12.8 139 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 03LD9, (2021/08/01 18:00UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 25.14 162 Nunki 18:55:15.9 -26:17:49 2.0 11.89 130 PPM 234244 18:15:30.8 -18:39:42 6.1 0.59 139 PPM 234237 18:15:16.8 -18:59:34 7.6 0.33 139 PPM 234215 18:14:06.9 -19:11:55 9.5 0.06 139 03LD9 18:14:02.7 -19:08:19 12.8 139 Positions are for J2000
Event circumstances last updated at 2021/05/17 01:05:53 UT
Marc W. Buie, Southwest Research Institute