Event between (501546) 14JJ80 and star GA0940:16752694 with event index number of 255822
Geocentric closest approach at 2020/04/20 20:56:14 UTC
J2000 position of star is 21:45:15.5 +04:34:34
Equinox of date position of star is 21:46:14.1 +04:39:58
Stellar brightness G=16.8,
use SENSEUP=128
Star is 42 degrees from the moon.
Moon is 5% illuminated.
TNO apparent brightness V=20.8
TNO is 32.2 AU from the Sun
and 32.7 AU from the Earth.
The TNO is moving 22.3
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 138 seconds.
The 1-sigma cross-track error in the shadow position is
3122 km.
The TNO has an absolute magnitude Hv=5.5
Diameter=478.6 km assuming a 5% albedo -- 21.5 sec chord
Diameter=195.4 km assuming a 30% albedo -- 8.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 501546, (2020/04/20 20:56UT) Object RA Dec mag sep mel Fomalhaut 22:58:46.1 -29:30:51 1.2 38.35 36 Markab 23:05:46.4 +15:18:53 2.5 22.25 28 11 Peg 21:48:15.7 +02:46:51 5.6 1.95 42 PPM 172245 21:48:11.7 +04:29:51 8.5 0.51 42 PPM 172202 21:45:51.1 +04:24:30 10.0 0.28 43 PPM 172209 21:46:05.0 +04:40:11 10.8 0.05 42 501546 21:46:16.8 +04:40:13 16.8 42 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 501546, (2020/04/20 20:56UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 38.35 36 Markab 23:04:45.7 +15:12:18 2.5 22.25 28 11 Peg 21:47:14.0 +02:41:10 5.6 1.95 42 PPM 172245 21:47:10.4 +04:24:10 8.5 0.51 42 PPM 172202 21:44:49.8 +04:18:51 10.0 0.28 43 PPM 172209 21:45:03.8 +04:34:32 10.8 0.05 42 501546 21:45:15.5 +04:34:34 16.8 42 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:29:41 UT
Marc W. Buie, Southwest Research Institute