Event between 12DR30 and star GA0280:02723678 with event index number of 153535
Geocentric closest approach at 2018/09/30 03:12:08 UTC
J2000 position of star is 09:39:27.7 -61:34:17
Equinox of date position of star is 09:39:58.5 -61:39:22
Stellar brightness G=16.6,
use SENSEUP=128
Star is 100 degrees from the moon.
Moon is 74% illuminated.
TNO apparent brightness V=20.2
TNO is 18.9 AU from the Sun
and 19.2 AU from the Earth.
The TNO is moving 34.6
km/sec on the sky relative to the star, or,
8.9 arcsec/hr.
The 1-sigma error in the time of the event is 128 seconds.
The 1-sigma cross-track error in the shadow position is
2222 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=227.0 km assuming a 5% albedo -- 6.6 sec chord
Diameter=92.7 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CENTAURS
Star training set for 12DR30, (2018/09/30 03:12UT) Object RA Dec mag sep mel Bet Cru 12:48:49.7 -59:47:27 1.3 22.65 122 Iot Car 09:17:35.5 -59:21:16 2.3 3.59 96 PPM 357473 09:39:52.2 -61:24:48 4.8 0.24 100 PPM 357447 09:36:50.5 -61:13:02 8.4 0.58 99 PPM 357473 09:39:52.2 -61:24:48 4.8 0.24 100 12DR30 09:39:58.7 -61:39:24 16.6 100 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 12DR30, (2018/09/30 03:12UT) Object RA Dec mag sep mel Bet Cru 12:47:43.1 -59:41:20 1.3 22.65 122 Iot Car 09:17:05.4 -59:16:31 2.3 3.59 96 PPM 357473 09:39:20.9 -61:19:40 4.8 0.24 100 PPM 357447 09:36:19.5 -61:07:57 8.4 0.58 99 PPM 357473 09:39:20.9 -61:19:40 4.8 0.24 100 12DR30 09:39:27.7 -61:34:17 16.6 100 Positions are for J2000
Event circumstances last updated at 2018/08/26 16:05:28 UT
Marc W. Buie, Southwest Research Institute