Event between 10BK118 and star GA0360:16833238 with event index number of 1090044
Geocentric closest approach at 2021/05/18 11:59:02 UTC
J2000 position of star is 14:59:32.8 -53:21:53
Equinox of date position of star is 15:01:05.3 -53:26:54
Stellar brightness G=14.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 107 degrees from the moon.
Moon is 37% illuminated.
TNO apparent brightness V=23.3
TNO is 19.9 AU from the Sun
and 19.1 AU from the Earth.
The TNO is moving 34.5
km/sec on the sky relative to the star, or,
9.0 arcsec/hr.
The 1-sigma error in the time of the event is 66 seconds.
The 1-sigma cross-track error in the shadow position is
1104 km.
The TNO has an absolute magnitude Hv=10.2
Diameter=55.2 km assuming a 5% albedo -- 1.6 sec chord
Diameter=22.5 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
Star training set for 10BK118, (2021/05/18 11:59UT) Object RA Dec mag sep mel PPM 360911 14:41:04.1 -60:55:21 0.0 7.95 106 Alp Lup 14:43:21.7 -47:28:43 2.3 6.60 102 PPM 343284 14:57:49.4 -52:53:41 5.5 0.74 106 PPM 343312 15:00:44.5 -53:34:28 8.3 0.14 107 PPM 343334 15:01:46.2 -53:24:32 10.1 0.11 107 10BK118 15:01:05.8 -53:26:56 14.9 107 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, (2021/05/18 11:59UT) Object RA Dec mag sep mel PPM 360911 14:39:25.4 -60:49:53 0.0 7.95 106 Alp Lup 14:41:55.7 -47:23:18 2.3 6.60 102 PPM 343284 14:56:17.4 -52:48:34 5.5 0.74 106 PPM 343312 14:59:11.4 -53:29:25 8.3 0.14 107 PPM 343334 15:00:13.2 -53:19:31 10.1 0.11 107 10BK118 14:59:32.8 -53:21:53 14.9 107 Positions are for J2000
Event circumstances last updated at 2021/04/07 23:50:56 UT
Marc W. Buie, Southwest Research Institute