Event between (342842) 08YB3 and star GA1040:13069290 with event index number of 2227671
Geocentric closest approach at 2028/10/10 17:35:26 UTC
J2000 position of star is 19:37:33.8 +15:54:47
Equinox of date position of star is 19:38:39.8 +15:58:08
Stellar brightness G=14.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 137 degrees from the moon.
Moon is 58% illuminated.
Apparent brightness V=22.0
Object is 16.6 AU from the Sun
and 16.4 AU from the Earth.
Apparent velocity is 24.0
km/sec on the sky relative to the star, or,
7.3 arcsec/hr.
The 1-sigma error in the time of the event is 111 seconds.
The 1-sigma cross-track error in the shadow position is
651 km.
The object has an absolute magnitude Hv=9.5
Diameter=82.8 km assuming a 5% albedo -- 3.2 sec chord
Diameter=33.8 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 342842, (2028/10/10 17:40UT) Object RA Dec mag sep mel Vega 18:37:54.7 +38:48:41 0.0 26.45 117 Tarazed 19:47:37.6 +10:41:07 2.7 5.71 141 PPM 136515 19:35:36.9 +16:19:45 6.5 0.86 137 PPM 136593 19:37:41.6 +15:57:30 7.8 0.28 138 PPM 136665 19:39:28.2 +16:05:52 9.5 0.19 137 342842 19:38:52.3 +15:58:47 14.6 137 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, (2028/10/10 17:40UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 26.45 117 Tarazed 19:46:15.6 +10:36:48 2.7 5.71 141 PPM 136515 19:34:18.7 +16:15:53 6.5 0.86 137 PPM 136593 19:36:23.1 +15:53:33 7.8 0.28 138 PPM 136665 19:38:09.7 +16:01:51 9.5 0.19 137 342842 19:37:33.8 +15:54:47 14.6 137 Positions are for J2000
Event circumstances last updated at 2024/03/07 04:46:24 UT
Marc W. Buie, Southwest Research Institute