Event between (310071) 10KR59 and star GA0660:06504006 with event index number of 1147596
Geocentric closest approach at 2021/07/07 13:16:49 UTC
J2000 position of star is 15:25:48.5 -22:40:04
Equinox of date position of star is 15:27:02.2 -22:44:25
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 157 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=20.7
TNO is 19.0 AU from the Sun
and 18.3 AU from the Earth.
The TNO is moving 11.8
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 56 seconds.
The 1-sigma cross-track error in the shadow position is
664 km.
The TNO has an absolute magnitude Hv=7.8
Diameter=162.2 km assuming a 5% albedo -- 13.7 sec chord
Diameter=66.2 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is CENTAURR
Star training set for 310071, (2021/07/07 13:17UT) Object RA Dec mag sep mel Antares 16:30:43.8 -26:28:40 0.9 14.93 171 7Del Sco 16:01:36.6 -22:40:52 2.3 7.96 165 PPM 264038 15:17:38.1 -22:28:39 5.5 2.19 155 PPM 264254 15:28:00.1 -22:34:47 8.3 0.27 157 PPM 264227 15:26:49.6 -22:50:38 9.4 0.12 157 310071 15:27:04.1 -22:44:32 12.8 157 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 310071, (2021/07/07 13:17UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 14.93 171 7Del Sco 16:00:20.0 -22:37:18 2.3 7.96 165 PPM 264038 15:16:23.0 -22:23:58 5.5 2.19 155 PPM 264254 15:26:44.6 -22:30:20 8.3 0.27 157 PPM 264227 15:25:34.0 -22:46:10 9.4 0.12 157 310071 15:25:48.5 -22:40:04 12.8 157 Positions are for J2000
Event circumstances last updated at 2020/12/25 01:38:42 UT
Marc W. Buie, Southwest Research Institute