Event between 10ER65 and star GA0780:04356124 with event index number of 1090836
Geocentric closest approach at 2021/08/01 13:39:13 UTC
J2000 position of star is 13:16:44.0 -11:53:07
Equinox of date position of star is 13:17:50.4 -11:59:43
Stellar brightness G=14.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 151 degrees from the moon.
Moon is 41% illuminated.
TNO apparent brightness V=21.6
TNO is 41.6 AU from the Sun
and 41.9 AU from the Earth.
The TNO is moving 14.6
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 104 seconds.
The 1-sigma cross-track error in the shadow position is
1519 km.
The TNO has an absolute magnitude Hv=5.2
Diameter=542.0 km assuming a 5% albedo -- 37.0 sec chord
Diameter=221.3 km assuming a 30% albedo -- 15.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 10ER65, (2021/08/01 13:39UT) Object RA Dec mag sep mel Spica 13:26:20.0 -11:16:24 1.0 2.19 153 50 Vir 13:10:53.2 -10:26:38 5.8 2.31 149 PPM 227068 13:18:30.2 -11:35:49 7.0 0.43 151 PPM 227055 13:17:59.6 -11:53:03 8.9 0.12 151 10ER65 13:17:52.4 -11:59:55 14.6 151 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 10ER65, (2021/08/01 13:39UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 2.19 153 50 Vir 13:09:45.3 -10:19:46 5.8 2.31 149 PPM 227068 13:17:21.9 -11:29:01 7.0 0.43 151 PPM 227055 13:16:51.2 -11:46:15 8.9 0.12 151 10ER65 13:16:44.0 -11:53:07 14.6 151 Positions are for J2000
Event circumstances last updated at 2020/12/15 21:21:36 UT
Marc W. Buie, Southwest Research Institute