Event between 99CY118 and star GA0960:03980637 with event index number of 263579
Geocentric closest approach at 2020/05/08 21:15:56 UTC
J2000 position of star is 14:04:05.7 +07:24:33
Equinox of date position of star is 14:05:00.7 +07:19:17
Stellar brightness G=11.2,
use SENSEUP=8
Star is 45 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=24.4
TNO is 36.7 AU from the Sun
and 35.8 AU from the Earth.
The TNO is moving 21.7
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 510 seconds.
The 1-sigma cross-track error in the shadow position is
4818 km.
The TNO has an absolute magnitude Hv=8.7
Diameter=111.7 km assuming a 5% albedo -- 5.1 sec chord
Diameter=45.6 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 99CY118, (2020/05/08 21:16UT) Object RA Dec mag sep mel Arcturus 14:16:35.6 +19:04:42 0.0 12.09 51 Vindemiatrix 13:03:11.4 +10:51:01 2.8 15.69 59 PPM 160252 14:02:20.9 +08:47:50 5.9 1.63 46 PPM 160315 14:05:42.4 +06:54:06 8.2 0.44 44 PPM 160306 14:04:59.9 +07:17:00 10.5 0.04 45 99CY118 14:05:06.5 +07:18:44 11.2 45 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 99CY118, (2020/05/08 21:16UT) Object RA Dec mag sep mel Arcturus 14:15:38.3 +19:10:20 0.0 12.09 51 Vindemiatrix 13:02:10.3 +10:57:33 2.8 15.69 59 PPM 160252 14:01:20.5 +08:53:42 5.9 1.63 46 PPM 160315 14:04:41.5 +06:59:54 8.2 0.44 44 PPM 160306 14:03:59.1 +07:22:49 10.5 0.04 45 99CY118 14:04:05.7 +07:24:33 11.2 45 Positions are for J2000
Event circumstances last updated at 2018/05/31 17:26:09 UT
Marc W. Buie, Southwest Research Institute