Event between 13FY27 and star GA0820:04032459 with event index number of 180917
Geocentric closest approach at 2019/02/25 18:59:10 UTC
J2000 position of star is 10:47:51.2 -06:51:03
Equinox of date position of star is 10:48:49.0 -06:57:08
Stellar brightness G=15.4,
use SENSEUP=128
Star is 74 degrees from the moon.
Moon is 57% illuminated.
TNO apparent brightness V=22.1
TNO is 80.0 AU from the Sun
and 79.0 AU from the Earth.
The TNO is moving 27.4
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 209 seconds.
The 1-sigma cross-track error in the shadow position is
4162 km.
The TNO has an absolute magnitude Hv=3.1
Diameter=1425.7 km assuming a 5% albedo -- 52.1 sec chord
Diameter=582.0 km assuming a 30% albedo -- 21.3 sec chord
Dynamical classification is SCATNEAR
Star training set for 13FY27, (2019/02/25 18:59UT) Object RA Dec mag sep mel Regulus 10:09:23.4 +11:52:22 1.3 21.22 89 Alphard 09:28:31.7 -08:44:33 2.0 19.96 93 PPM 193828 10:50:41.0 -09:57:16 5.5 3.04 73 PPM 193831 10:50:56.2 -07:35:04 8.2 0.82 74 PPM 193789 10:48:37.5 -06:55:17 9.5 0.06 74 13FY27 10:48:49.1 -06:57:09 15.4 74 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 13FY27, (2019/02/25 18:59UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 21.22 89 Alphard 09:27:35.2 -08:39:31 2.0 19.96 93 PPM 193828 10:49:43.5 -09:51:10 5.5 3.04 73 PPM 193831 10:49:58.3 -07:28:58 8.2 0.82 74 PPM 193789 10:47:39.6 -06:49:12 9.5 0.06 74 13FY27 10:47:51.2 -06:51:03 15.4 74 Positions are for J2000
Event circumstances last updated at 2019/02/12 06:19:34 UT
Marc W. Buie, Southwest Research Institute