Event between 10CD270 and star GA1060:03469647 with event index number of 1566730
Geocentric closest approach at 2021/03/04 00:07:34 UTC
J2000 position of star is 12:18:42.6 +16:03:56
Equinox of date position of star is 12:19:46.6 +15:56:56
Stellar brightness G=14.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 50 degrees from the moon.
Moon is 73% illuminated.
TNO apparent brightness V=22.1
TNO is 25.1 AU from the Sun
and 24.2 AU from the Earth.
The TNO is moving 23.2
km/sec on the sky relative to the star, or,
4.8 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
1283 km.
The TNO has an absolute magnitude Hv=8.1
Diameter=146.6 km assuming a 5% albedo -- 6.3 sec chord
Diameter=59.8 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CENTAURR
Star training set for 10CD270, (2021/03/04 00:08UT) Object RA Dec mag sep mel Arcturus 14:16:37.7 +19:04:23 0.0 28.00 35 Denebola 11:50:08.3 +14:27:13 2.1 7.31 55 6 Com 12:17:04.6 +14:46:52 5.1 1.34 50 PPM 128970 12:21:10.4 +15:35:49 8.4 0.48 50 PPM 128942 12:19:33.3 +16:05:11 10.8 0.15 50 10CD270 12:19:47.0 +15:56:53 14.6 50 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 10CD270, (2021/03/04 00:08UT) Object RA Dec mag sep mel Arcturus 14:15:38.1 +19:10:15 0.0 28.00 35 Denebola 11:49:02.9 +14:34:17 2.1 7.31 55 6 Com 12:16:00.1 +14:53:56 5.1 1.34 50 PPM 128970 12:20:06.0 +15:42:51 8.4 0.48 50 PPM 128942 12:18:28.9 +16:12:14 10.8 0.15 50 10CD270 12:18:42.6 +16:03:56 14.6 50 Positions are for J2000
Event circumstances last updated at 2021/01/18 22:06:30 UT
Marc W. Buie, Southwest Research Institute