Event between (535988) 15BU518 and star GA0760:05108669 with event index number of 2559548
Geocentric closest approach at 2022/01/18 03:01:56 UTC
J2000 position of star is 14:59:26.9 -13:36:21
Equinox of date position of star is 15:00:39.3 -13:41:32
Stellar brightness G=16.1,
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 100% illuminated.
TNO apparent brightness V=22.8
TNO is 32.7 AU from the Sun
and 33.0 AU from the Earth.
The TNO is moving 15.5
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 161 seconds.
The 1-sigma cross-track error in the shadow position is
1694 km.
The TNO has an absolute magnitude Hv=7.5
Diameter=190.6 km assuming a 5% albedo -- 12.3 sec chord
Diameter=77.8 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is SCATNEAR
Star training set for 535988, (2022/01/18 03:02UT) Object RA Dec mag sep mel Spica 13:26:21.5 -11:16:33 1.0 23.14 85 27Bet Lib 15:18:11.8 -09:27:47 2.6 6.03 109 13Xi 1Lib 14:55:34.9 -11:59:14 5.9 2.11 105 PPM 229576 14:59:55.3 -12:51:20 7.8 0.86 106 PPM 229599 15:00:55.5 -13:51:11 9.5 0.17 107 535988 15:00:39.7 -13:41:34 16.1 107 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 535988, (2022/01/18 03:02UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 23.14 85 27Bet Lib 15:17:00.3 -09:22:59 2.6 6.03 109 13Xi 1Lib 14:54:22.8 -11:53:54 5.9 2.11 105 PPM 229576 14:58:42.7 -12:46:07 7.8 0.86 106 PPM 229599 14:59:42.5 -13:45:59 9.5 0.17 107 535988 14:59:26.9 -13:36:21 16.1 107 Positions are for J2000
Event circumstances last updated at 2021/12/07 01:45:05 UT
Marc W. Buie, Southwest Research Institute