Event between (578832) 14GP53 and star GA0740:07971015 with event index number of 2550823
Geocentric closest approach at 2027/05/11 16:37:41 UTC
J2000 position of star is 17:24:55.7 -15:51:12
Equinox of date position of star is 17:26:11.8 -15:52:18
Stellar brightness G=11.4,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 140 degrees from the moon.
Moon is 33% illuminated.
TNO apparent brightness V=22.6
TNO is 23.3 AU from the Sun
and 22.4 AU from the Earth.
The TNO is moving 18.8
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 315 seconds.
The 1-sigma cross-track error in the shadow position is
1904 km.
The TNO has an absolute magnitude Hv=8.9
Diameter=98.2 km assuming a 5% albedo -- 5.2 sec chord
Diameter=40.1 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
Star training set for 578832, (2027/05/11 16:38UT) Object RA Dec mag sep mel Antares 16:31:05.4 -26:29:25 0.9 16.69 129 35Eta Oph 17:11:56.9 -15:45:25 2.6 3.50 136 PPM 232892 17:19:53.9 -16:20:19 5.9 1.65 138 PPM 233011 17:25:10.8 -16:03:43 7.0 0.37 139 PPM 233022 17:25:57.9 -15:50:26 9.4 0.13 140 578832 17:26:30.1 -15:52:34 11.4 140 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 578832, (2027/05/11 16:38UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 16.69 129 35Eta Oph 17:10:22.7 -15:43:29 2.6 3.50 136 PPM 232892 17:18:19.3 -16:18:42 5.9 1.65 138 PPM 233011 17:23:36.2 -16:02:18 7.0 0.37 139 PPM 233022 17:24:23.6 -15:49:03 9.4 0.13 140 578832 17:24:55.7 -15:51:12 11.4 140 Positions are for J2000
Event circumstances last updated at 2022/01/25 00:21:16 UT
Marc W. Buie, Southwest Research Institute