Event between 08CT190 and star UC4-649-049705 with event index number of 116712
Geocentric closest approach at 2018/05/24 11:09:56 UTC
J2000 position of star is 11:32:08.2 +39:40:48
Equinox of date position of star is 11:33:03.9 +39:35:02
Stellar brightness R=15.6,
use SENSEUP=128
Star is 38 degrees from the moon.
Moon is 74% illuminated.
TNO apparent brightness V=21.0
TNO is 34.9 AU from the Sun
and 34.9 AU from the Earth.
The TNO is moving 14.3
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 282 seconds.
The 1-sigma cross-track error in the shadow position is
5260 km.
The TNO has an absolute magnitude Hv=5.4
Diameter=489.8 km assuming a 5% albedo -- 34.3 sec chord
Diameter=200.0 km assuming a 30% albedo -- 14.0 sec chord
Dynamical classification is SCATNEAR
Star training set for 08CT190, (2018/05/24 11:10UT) Object RA Dec mag sep mel Regulus 10:09:21.0 +11:52:36 1.3 33.33 33 Phad 11:54:47.4 +53:35:33 2.4 14.49 51 PPM 075944 11:34:54.7 +36:42:49 6.4 2.89 35 PPM 075924 11:33:11.8 +38:49:27 8.2 0.75 37 PPM 075937 11:34:03.0 +39:13:12 8.8 0.40 38 PPM 075934 11:33:59.6 +39:29:49 11.1 0.19 38 08CT190 11:33:07.1 +39:34:42 15.6 38 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 08CT190, (2018/05/24 11:10UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 33.33 33 Phad 11:53:50.0 +53:41:41 2.4 14.49 51 PPM 075944 11:33:56.1 +36:48:56 6.4 2.89 35 PPM 075924 11:32:12.9 +38:55:33 8.2 0.75 37 PPM 075937 11:33:04.2 +39:19:18 8.8 0.40 38 PPM 075934 11:33:00.7 +39:35:55 11.1 0.19 38 08CT190 11:32:08.2 +39:40:48 15.6 38 Positions are for J2000
Event circumstances last updated at 2017/05/18 18:03:57 UT
Marc W. Buie, Southwest Research Institute