Event between (499522) 10PL66 and star GA1140:00249081 with event index number of 2653847
Geocentric closest approach at 2027/10/06 17:24:22 UTC
J2000 position of star is 02:01:53.9 +25:35:51
Equinox of date position of star is 02:03:16.2 +25:42:48
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 122 degrees from the moon.
Moon is 43% illuminated.
Apparent brightness V=19.8
Object is 15.7 AU from the Sun
and 14.8 AU from the Earth.
Apparent velocity is 20.5
km/sec on the sky relative to the star, or,
6.9 arcsec/hr.
The 1-sigma error in the time of the event is 83 seconds.
The 1-sigma cross-track error in the shadow position is
1554 km.
The object has an absolute magnitude Hv=7.8
Diameter=162.9 km assuming a 5% albedo -- 8.0 sec chord
Diameter=66.5 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CENTAURR
Star training set for 499522, (2027/10/06 17:24UT) Object RA Dec mag sep mel Aldebaran 04:37:31.0 +16:33:47 0.8 36.93 154 Hamal 02:08:44.7 +23:35:33 2.0 2.45 123 10 Ari 02:05:14.4 +26:04:05 6.1 0.52 123 PPM 091290 02:02:48.8 +25:19:42 9.1 0.43 122 499522 02:03:28.4 +25:43:50 16.7 123 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 499522, (2027/10/06 17:24UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 36.93 154 Hamal 02:07:10.7 +23:27:41 2.0 2.45 123 10 Ari 02:03:39.6 +25:56:09 6.1 0.52 123 PPM 091290 02:01:14.5 +25:11:42 9.1 0.43 122 499522 02:01:53.9 +25:35:51 16.7 122 Positions are for J2000
Event circumstances last updated at 2024/03/06 04:32:56 UT
Marc W. Buie, Southwest Research Institute