Event between (552678) 10JG210 and star GA0780:17967474 with event index number of 2224836
Geocentric closest approach at 2027/10/19 17:08:09 UTC
J2000 position of star is 19:01:19.5 -11:33:18
Equinox of date position of star is 19:02:35.9 -11:31:15
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 148 degrees from the moon.
Moon is 81% illuminated.
TNO apparent brightness V=21.2
TNO is 17.4 AU from the Sun
and 17.5 AU from the Earth.
The TNO is moving 16.4
km/sec on the sky relative to the star, or,
4.7 arcsec/hr.
The 1-sigma error in the time of the event is 183 seconds.
The 1-sigma cross-track error in the shadow position is
1891 km.
The TNO has an absolute magnitude Hv=8.5
Diameter=114.3 km assuming a 5% albedo -- 7.2 sec chord
Diameter=46.7 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is CENTAURR
Star training set for 552678, (2027/10/19 17:13UT) Object RA Dec mag sep mel Antares 16:31:07.0 -26:29:28 0.9 38.68 172 Nunki 18:56:59.2 -26:15:34 2.0 14.81 155 PPM 235666 19:14:48.7 -12:14:01 5.2 3.01 146 PPM 235426 19:04:45.5 -11:08:50 7.6 0.59 148 PPM 235383 19:03:25.2 -11:27:46 9.4 0.14 148 552678 19:02:52.3 -11:30:49 16.3 148 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 552678, (2027/10/19 17:13UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 38.68 172 Nunki 18:55:15.9 -26:17:49 2.0 14.81 155 PPM 235666 19:13:15.6 -12:16:58 5.2 3.01 146 PPM 235426 19:03:12.9 -11:11:23 7.6 0.59 148 PPM 235383 19:01:52.5 -11:30:17 9.4 0.14 148 552678 19:01:19.5 -11:33:18 16.3 148 Positions are for J2000
Event circumstances last updated at 2022/11/23 03:45:03 UT
Marc W. Buie, Southwest Research Institute