Event between (145480) 05TB190 and star GA0900:16536870 with event index number of 154031
Geocentric closest approach at 2018/10/07 16:15:40 UTC
J2000 position of star is 23:35:56.9 +00:22:56
Equinox of date position of star is 23:36:54.5 +00:29:10
Stellar brightness G=14.5,
use SENSEUP=128
Star is 173 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=21.1
TNO is 46.2 AU from the Sun
and 45.3 AU from the Earth.
The TNO is moving 23.5
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 100 seconds.
The 1-sigma cross-track error in the shadow position is
2258 km.
The TNO has an absolute magnitude Hv=4.4
Diameter=794.4 km assuming a 5% albedo -- 33.8 sec chord
Diameter=324.3 km assuming a 30% albedo -- 13.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 145480, (2018/10/07 16:16UT) Object RA Dec mag sep mel Fomalhaut 22:58:41.0 -29:31:21 1.2 31.36 153 Markab 23:05:41.8 +15:18:24 2.5 16.70 157 14 Psc 23:35:06.9 -01:08:38 5.9 1.69 175 PPM 174237 23:36:26.2 +01:25:01 7.4 0.94 172 PPM 174234 23:36:05.2 +00:17:41 9.3 0.28 173 PPM 174245 23:36:46.7 +00:32:55 10.8 0.07 173 145480 23:36:54.5 +00:29:10 14.5 173 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 145480, (2018/10/07 16:16UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 31.36 153 Markab 23:04:45.7 +15:12:18 2.5 16.70 157 14 Psc 23:34:09.2 -01:14:51 5.9 1.69 175 PPM 174237 23:35:28.5 +01:18:47 7.4 0.94 172 PPM 174234 23:35:07.5 +00:11:27 9.3 0.28 173 PPM 174245 23:35:49.0 +00:26:41 10.8 0.07 173 145480 23:35:56.9 +00:22:56 14.5 173 Positions are for J2000
Event circumstances last updated at 2018/10/04 18:54:30 UT
Marc W. Buie, Southwest Research Institute