Event between 10BK118 and star GA0380:12783091 with event index number of 1090128
Geocentric closest approach at 2021/07/20 12:04:01 UTC
J2000 position of star is 14:42:51.1 -51:18:43
Equinox of date position of star is 14:44:19.8 -51:24:05
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 36 degrees from the moon.
Moon is 83% illuminated.
TNO apparent brightness V=23.5
TNO is 20.2 AU from the Sun
and 19.8 AU from the Earth.
The TNO is moving 24.1
km/sec on the sky relative to the star, or,
6.1 arcsec/hr.
The 1-sigma error in the time of the event is 51 seconds.
The 1-sigma cross-track error in the shadow position is
2337 km.
The TNO has an absolute magnitude Hv=10.2
Diameter=55.2 km assuming a 5% albedo -- 2.3 sec chord
Diameter=22.5 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
Star training set for 10BK118, (2021/07/20 12:04UT) Object RA Dec mag sep mel PPM 360911 14:41:04.9 -60:55:23 0.0 9.53 44 Alp Lup 14:43:22.4 -47:28:46 2.3 3.93 34 PPM 343132 14:46:49.0 -51:24:18 6.4 0.38 36 PPM 343097 14:44:52.8 -51:38:57 8.3 0.26 36 PPM 343094 14:44:41.7 -51:25:51 9.8 0.06 36 10BK118 14:44:21.0 -51:24:09 16.1 36 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 10BK118, (2021/07/20 12:04UT) Object RA Dec mag sep mel PPM 360911 14:39:25.4 -60:49:53 0.0 9.53 44 Alp Lup 14:41:55.7 -47:23:18 2.3 3.93 34 PPM 343132 14:45:18.8 -51:18:55 6.4 0.38 36 PPM 343097 14:43:22.7 -51:33:31 8.3 0.26 36 PPM 343094 14:43:11.8 -51:20:25 9.8 0.06 36 10BK118 14:42:51.1 -51:18:43 16.1 36 Positions are for J2000
Event circumstances last updated at 2021/04/08 23:41:51 UT
Marc W. Buie, Southwest Research Institute