Event between (471272) 11FY9 and star GA0900:04515377 with event index number of 2572590
Geocentric closest approach at 2027/08/09 11:17:27 UTC
J2000 position of star is 16:14:52.2 +00:11:13
Equinox of date position of star is 16:16:00.0 +00:07:58
Stellar brightness G=13.4,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 29 degrees from the moon.
Moon is 53% illuminated.
TNO apparent brightness V=23.6
TNO is 28.2 AU from the Sun
and 27.9 AU from the Earth.
The TNO is moving 7.8
km/sec on the sky relative to the star, or,
1.4 arcsec/hr.
The 1-sigma error in the time of the event is 225 seconds.
The 1-sigma cross-track error in the shadow position is
3175 km.
The TNO has an absolute magnitude Hv=8.9
Diameter=97.7 km assuming a 5% albedo -- 12.5 sec chord
Diameter=39.9 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is CENTAURR
Star training set for 471272, (2027/08/09 11:17UT) Object RA Dec mag sep mel Antares 16:31:06.3 -26:29:27 0.9 26.85 20 1Del Oph 16:15:47.7 -03:45:47 2.7 3.88 26 PPM 199363 16:11:17.4 -03:32:15 5.0 3.86 25 PPM 179746 16:14:36.4 -00:35:16 8.2 0.82 28 PPM 162370 16:15:48.1 +00:07:09 9.9 0.12 29 471272 16:16:17.0 +00:07:10 13.4 29 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 471272, (2027/08/09 11:17UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 26.85 20 1Del Oph 16:14:20.7 -03:41:43 2.7 3.88 26 PPM 199363 16:09:50.5 -03:28:00 5.0 3.86 25 PPM 179746 16:13:11.1 -00:31:09 8.2 0.82 28 PPM 162370 16:14:23.3 +00:11:14 9.9 0.12 29 471272 16:14:52.2 +00:11:13 13.4 29 Positions are for J2000
Event circumstances last updated at 2022/01/28 00:04:33 UT
Marc W. Buie, Southwest Research Institute