Event between (523746) 14UT114 and star UC4-631-018503 with event index number of 305131
Geocentric closest approach at 2020/02/16 19:42:37 UTC
J2000 position of star is 04:34:23.8 +36:04:54
Equinox of date position of star is 04:35:41.2 +36:07:16
Stellar brightness R=14.7,
use SENSEUP=128
Star is 163 degrees from the moon.
Moon is 40% illuminated.
TNO apparent brightness V=21.3
TNO is 15.9 AU from the Sun
and 15.6 AU from the Earth.
The TNO is moving 8.0
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 116 seconds.
The 1-sigma cross-track error in the shadow position is
1501 km.
The TNO has an absolute magnitude Hv=9.0
Diameter=95.5 km assuming a 5% albedo -- 12.0 sec chord
Diameter=39.0 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is CENTAURR
Star training set for 523746, (2020/02/16 19:43UT) Object RA Dec mag sep mel Aldebaran 04:37:04.7 +16:32:53 0.8 19.58 177 3Iot Aur 04:58:18.5 +33:11:46 2.7 5.49 165 PPM 069587 04:43:12.6 +38:19:00 6.2 2.65 161 PPM 069536 04:37:58.7 +36:59:31 7.6 0.98 162 PPM 069496 04:34:22.2 +35:52:24 9.7 0.37 163 523746 04:35:44.0 +36:07:21 14.7 163 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 523746, (2020/02/16 19:43UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 19.58 177 3Iot Aur 04:56:59.6 +33:09:58 2.7 5.49 165 PPM 069587 04:41:50.7 +38:16:47 6.2 2.65 161 PPM 069536 04:36:37.9 +36:57:08 7.6 0.98 162 PPM 069496 04:33:02.2 +35:49:55 9.7 0.37 163 523746 04:34:23.8 +36:04:54 14.7 163 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:16:50 UT
Marc W. Buie, Southwest Research Institute