Event between (342842) 08YB3 and star GA1200:12045298 with event index number of 2203988
Geocentric closest approach at 2025/03/28 17:45:31 UTC
J2000 position of star is 20:13:36.8 +30:21:37
Equinox of date position of star is 20:14:35.3 +30:26:04
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 61 degrees from the moon.
Moon is 1% illuminated.
Apparent brightness V=21.8
Object is 15.7 AU from the Sun
and 16.1 AU from the Earth.
Apparent velocity is 20.2
km/sec on the sky relative to the star, or,
6.2 arcsec/hr.
The 1-sigma error in the time of the event is 75 seconds.
The 1-sigma cross-track error in the shadow position is
968 km.
The object has an absolute magnitude Hv=9.5
Diameter=82.8 km assuming a 5% albedo -- 3.8 sec chord
Diameter=33.8 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 342842, (2025/03/28 17:45UT) Object RA Dec mag sep mel Deneb 20:42:17.6 +45:22:18 1.3 15.88 62 53Eps Cyg 20:47:13.9 +34:03:56 2.5 7.79 56 21 Vul 20:15:16.8 +28:46:21 5.3 1.67 60 PPM 084516 20:15:19.9 +30:15:18 6.8 0.24 60 PPM 084461 20:14:03.5 +30:33:16 8.8 0.17 61 PPM 084485 20:14:34.8 +30:32:56 10.7 0.11 61 342842 20:14:37.9 +30:26:16 15.7 60 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 342842, (2025/03/28 17:45UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 15.88 62 53Eps Cyg 20:46:13.3 +33:58:20 2.5 7.79 56 21 Vul 20:14:14.5 +28:41:41 5.3 1.67 60 PPM 084516 20:14:18.6 +30:10:38 6.8 0.24 60 PPM 084461 20:13:02.5 +30:28:38 8.8 0.17 61 PPM 084485 20:13:33.8 +30:28:16 10.7 0.11 61 342842 20:13:36.8 +30:21:37 15.7 61 Positions are for J2000
Event circumstances last updated at 2024/03/02 06:10:47 UT
Marc W. Buie, Southwest Research Institute