Event between (499514) 10OO127 and star GA1040:18814494 with event index number of 2324931
Geocentric closest approach at 2027/09/08 20:15:32 UTC
J2000 position of star is 22:47:50.5 +15:07:05
Equinox of date position of star is 22:49:01.1 +15:14:40
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 83 degrees from the moon.
Moon is 61% illuminated.
Apparent brightness V=21.1
Object is 44.4 AU from the Sun
and 43.5 AU from the Earth.
Apparent velocity is 25.4
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 97 seconds.
The 1-sigma cross-track error in the shadow position is
1792 km.
The object has an absolute magnitude Hv=4.6
Diameter=682.4 km assuming a 5% albedo -- 28.0 sec chord
Diameter=278.6 km assuming a 30% albedo -- 11.4 sec chord
Dynamical classification is CENTAURS
Star training set for 499514, (2027/09/08 20:14UT) Object RA Dec mag sep mel Deneb 20:42:22.6 +45:22:50 1.3 40.19 82 Markab 23:06:08.5 +15:21:17 2.5 4.08 87 PPM 141726 22:42:15.0 +14:41:43 6.5 1.77 82 PPM 141922 22:53:08.4 +15:14:00 7.4 0.95 84 PPM 141836 22:48:12.2 +15:20:24 9.2 0.25 83 499514 22:49:12.6 +15:15:53 16.4 84 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 499514, (2027/09/08 20:14UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 40.19 82 Markab 23:04:45.8 +15:12:18 2.5 4.08 87 PPM 141726 22:40:53.1 +14:33:00 6.5 1.77 82 PPM 141922 22:51:46.2 +15:05:09 7.4 0.95 84 PPM 141836 22:46:50.2 +15:11:37 9.2 0.25 83 499514 22:47:50.5 +15:07:05 16.4 83 Positions are for J2000
Event circumstances last updated at 2023/10/26 02:12:38 UT
Marc W. Buie, Southwest Research Institute