Event between (523734) 14QV441 and star GA0820:00245855 with event index number of 1097422
Geocentric closest approach at 2021/07/12 01:19:28 UTC
J2000 position of star is 03:11:08.8 -06:14:35
Equinox of date position of star is 03:12:11.3 -06:09:52
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 92 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=21.8
TNO is 18.9 AU from the Sun
and 19.2 AU from the Earth.
The TNO is moving 23.1
km/sec on the sky relative to the star, or,
6.0 arcsec/hr.
The 1-sigma error in the time of the event is 64 seconds.
The 1-sigma cross-track error in the shadow position is
808 km.
The TNO has an absolute magnitude Hv=8.7
Diameter=109.7 km assuming a 5% albedo -- 4.7 sec chord
Diameter=44.8 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 523734, (2021/07/12 01:20UT) Object RA Dec mag sep mel Rigel 05:15:34.4 -08:10:42 0.1 30.66 64 Menkar 03:03:24.4 +04:10:23 2.5 10.57 90 PPM 185399 03:07:37.5 -06:00:24 4.9 1.15 93 PPM 185499 03:12:41.3 -05:37:53 8.5 0.54 91 PPM 185471 03:11:18.8 -05:58:59 8.8 0.29 92 523734 03:12:12.6 -06:09:46 15.8 91 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 523734, (2021/07/12 01:20UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 30.66 64 Menkar 03:02:16.8 +04:05:21 2.5 10.57 90 PPM 185399 03:06:33.5 -06:05:19 4.9 1.15 93 PPM 185499 03:11:37.3 -05:42:42 8.5 0.54 91 PPM 185471 03:10:14.9 -06:03:50 8.8 0.29 92 523734 03:11:08.8 -06:14:35 15.8 92 Positions are for J2000
Event circumstances last updated at 2021/01/23 20:42:09 UT
Marc W. Buie, Southwest Research Institute