Event between (449097) 12UT68 and star UC4-617-029215 with event index number of 88394
Geocentric closest approach at 2017/09/06 07:13:52 UTC
J2000 position of star is 05:52:39.5 +33:22:46
Equinox of date position of star is 05:53:48.2 +33:22:57
Stellar brightness R=14.5,
use SENSEUP=128
Star is 105 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=21.2
TNO is 13.3 AU from the Sun
and 13.5 AU from the Earth.
The TNO is moving 17.5
km/sec on the sky relative to the star, or,
6.4 arcsec/hr.
The 1-sigma error in the time of the event is 66 seconds.
The 1-sigma cross-track error in the shadow position is
733 km.
The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 4.1 sec chord
Diameter=29.6 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 449097, (2017/09/06 07:14UT) Object RA Dec mag sep mel Aldebaran 04:36:56.2 +16:32:36 0.8 24.15 86 Alnath 05:27:24.7 +28:37:15 1.6 7.39 99 PPM 071002 05:56:07.9 +31:42:09 5.9 1.75 105 PPM 071043 05:58:35.1 +33:08:05 8.4 1.03 106 PPM 070933 05:52:55.1 +33:20:59 9.7 0.19 104 449097 05:53:49.5 +33:22:57 14.5 105 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 449097, (2017/09/06 07:14UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 24.15 86 Alnath 05:26:17.5 +28:36:24 1.6 7.39 99 PPM 071002 05:54:58.9 +31:42:03 5.9 1.75 105 PPM 071043 05:57:25.3 +33:08:02 8.4 1.03 106 PPM 070933 05:51:45.2 +33:20:47 9.7 0.19 104 449097 05:52:39.5 +33:22:46 14.5 105 Positions are for J2000
Event circumstances last updated at 2017/05/16 18:32:33 UT
Marc W. Buie, Southwest Research Institute