Event between (523620) 07RH283 and star GA1240:00922998 with event index number of 326112
Geocentric closest approach at 2019/12/14 13:37:52 UTC
J2000 position of star is 04:00:02.8 +35:47:45
Equinox of date position of star is 04:01:18.8 +35:50:58
Stellar brightness G=15.1,
use SENSEUP=128
Star is 48 degrees from the moon.
Moon is 94% illuminated.
TNO apparent brightness V=22.0
TNO is 21.1 AU from the Sun
and 20.2 AU from the Earth.
The TNO is moving 24.1
km/sec on the sky relative to the star, or,
5.9 arcsec/hr.
The 1-sigma error in the time of the event is 67 seconds.
The 1-sigma cross-track error in the shadow position is
914 km.
The TNO has an absolute magnitude Hv=8.7
Diameter=109.7 km assuming a 5% albedo -- 4.5 sec chord
Diameter=44.8 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 523620, (2019/12/14 13:38UT) Object RA Dec mag sep mel Aldebaran 04:37:04.1 +16:32:52 0.8 20.87 42 44Zet Per 03:55:23.5 +31:56:29 2.8 4.10 49 46Xi Per 04:00:15.9 +35:50:48 4.0 0.22 48 PPM 069038 04:03:59.7 +35:27:13 8.3 0.67 47 PPM 068988 04:01:22.1 +35:50:51 9.8 0.01 48 523620 04:01:20.8 +35:51:04 15.1 48 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 523620, (2019/12/14 13:38UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 20.87 42 44Zet Per 03:54:07.9 +31:53:01 2.8 4.10 49 46Xi Per 03:58:57.9 +35:47:28 4.0 0.22 48 PPM 069038 04:02:41.8 +35:23:59 8.3 0.67 47 PPM 068988 04:00:04.0 +35:47:32 9.8 0.01 48 523620 04:00:02.8 +35:47:45 15.1 48 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:00:57 UT
Marc W. Buie, Southwest Research Institute