Event between (576257) 12JD68 and star GA0960:06451210 with event index number of 2528971
Geocentric closest approach at 2027/04/19 13:52:49 UTC
J2000 position of star is 18:16:28.0 +06:06:19
Equinox of date position of star is 18:17:32.7 +06:06:52
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 85 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=22.9
TNO is 28.1 AU from the Sun
and 27.7 AU from the Earth.
The TNO is moving 14.4
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 260 seconds.
The 1-sigma cross-track error in the shadow position is
5453 km.
The TNO has an absolute magnitude Hv=8.2
Diameter=138.0 km assuming a 5% albedo -- 9.6 sec chord
Diameter=56.4 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 576257, (2027/04/19 13:53UT) Object RA Dec mag sep mel Vega 18:37:51.7 +38:48:36 0.0 33.01 95 60Bet Oph 17:44:49.3 +04:33:28 2.8 8.36 77 73 Oph 18:10:55.4 +04:00:01 6.0 2.72 83 PPM 165539 18:18:34.6 +05:45:55 7.2 0.40 86 PPM 165501 18:17:16.3 +05:56:18 9.5 0.22 85 576257 18:17:48.1 +06:07:00 16.3 86 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 576257, (2027/04/19 13:53UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 33.01 95 60Bet Oph 17:43:28.3 +04:34:06 2.8 8.36 77 73 Oph 18:09:34.0 +03:59:36 6.0 2.72 83 PPM 165539 18:17:14.3 +05:45:13 7.2 0.40 86 PPM 165501 18:15:56.1 +05:55:39 9.5 0.22 85 576257 18:16:28.0 +06:06:19 16.3 85 Positions are for J2000
Event circumstances last updated at 2022/01/24 01:41:08 UT
Marc W. Buie, Southwest Research Institute