Event between 04VY130 and star UC4-535-010509 with event index number of 238034
Geocentric closest approach at 2018/03/07 01:34:43 UTC
J2000 position of star is 04:56:18.4 +16:48:45
Equinox of date position of star is 04:57:20.9 +16:50:24
Stellar brightness R=15.8,
use SENSEUP=128
Star is 155 degrees from the moon.
Moon is 73% illuminated.
TNO apparent brightness V=23.0
TNO is 29.6 AU from the Sun
and 29.6 AU from the Earth.
The TNO is moving 6.7
km/sec on the sky relative to the star, or,
1.1 arcsec/hr.
The 1-sigma error in the time of the event is 473 seconds.
The 1-sigma cross-track error in the shadow position is
2190 km.
The TNO has an absolute magnitude Hv=8.1
Diameter=144.5 km assuming a 5% albedo -- 21.6 sec chord
Diameter=59.0 km assuming a 30% albedo -- 8.8 sec chord
Dynamical classification is 3:2E
Star training set for 04VY130, (2018/03/07 01:35UT) Object RA Dec mag sep mel Aldebaran 04:36:58.0 +16:32:40 0.8 4.89 160 Bellatrix 05:26:06.4 +06:21:53 1.6 12.62 147 PPM 120426 04:58:25.4 +17:10:49 6.3 0.43 155 PPM 120395 04:56:22.4 +16:38:53 7.5 0.30 155 PPM 120409 04:57:18.0 +16:35:48 10.6 0.24 155 04VY130 04:57:21.3 +16:50:24 15.8 155 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 04VY130, (2018/03/07 01:35UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 4.89 160 Bellatrix 05:25:07.8 +06:20:58 1.6 12.62 147 PPM 120426 04:57:22.2 +17:09:12 6.3 0.43 155 PPM 120395 04:55:19.6 +16:37:12 7.5 0.30 155 PPM 120409 04:56:15.2 +16:34:09 10.6 0.24 155 04VY130 04:56:18.4 +16:48:45 15.8 155 Positions are for J2000
Event circumstances last updated at 2018/01/16 17:03:18 UT
Marc W. Buie, Southwest Research Institute