Event between 14YX49 and star GA1240:03329123 with event index number of 1131058
Geocentric closest approach at 2021/03/28 23:32:15 UTC
J2000 position of star is 09:10:33.4 +34:51:23
Equinox of date position of star is 09:11:51.8 +34:46:09
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 62 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=22.2
TNO is 20.8 AU from the Sun
and 20.3 AU from the Earth.
The TNO is moving 11.7
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 89 seconds.
The 1-sigma cross-track error in the shadow position is
752 km.
The TNO has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 9.0 sec chord
Diameter=42.8 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CENTAURR
Star training set for 14YX49, (2021/03/28 23:33UT) Object RA Dec mag sep mel Pollux 07:46:36.8 +27:58:23 1.1 19.38 78 PPM 074277 09:10:09.0 +33:47:41 6.4 1.04 62 PPM 074293 09:11:27.3 +35:19:31 7.9 0.56 62 PPM 074312 09:12:51.1 +34:38:19 9.8 0.24 61 14YX49 09:11:52.0 +34:46:08 16.9 61 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 14YX49, (2021/03/28 23:33UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 19.38 78 PPM 074277 09:08:50.8 +33:52:54 6.4 1.04 62 PPM 074293 09:10:08.5 +35:24:46 7.9 0.56 62 PPM 074312 09:11:32.7 +34:43:36 9.8 0.24 61 14YX49 09:10:33.4 +34:51:23 16.9 62 Positions are for J2000
Event circumstances last updated at 2021/03/14 00:41:41 UT
Marc W. Buie, Southwest Research Institute