Event between (42355) Typhon and star GA0660:07188166 with event index number of 2413012
Geocentric closest approach at 2028/04/08 22:53:00 UTC
J2000 position of star is 16:15:12.2 -23:40:21
Equinox of date position of star is 16:16:40.4 -23:43:56
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 53 degrees from the moon.
Moon is 99% illuminated.
Apparent brightness V=22.2
Object is 27.9 AU from the Sun
and 27.2 AU from the Earth.
Apparent velocity is 14.5
km/sec on the sky relative to the star, or,
2.6 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
1007 km.
The object has an absolute magnitude Hv=7.6
Diameter=181.1 km assuming a 5% albedo -- 12.4 sec chord
Diameter=74.0 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is CENTAURR
Star training set for 42355, (2028/04/08 22:53UT) Object RA Dec mag sep mel Antares 16:31:08.7 -26:29:32 0.9 4.24 57 7Del Sco 16:02:00.6 -22:41:59 2.3 3.58 50 19Omi Sco 16:22:20.6 -24:14:07 4.0 1.34 54 PPM 265282 16:15:30.4 -24:19:32 8.5 0.67 53 PPM 265311 16:16:51.2 -23:49:43 9.7 0.09 53 42355 16:16:54.1 -23:44:29 16.6 54 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 42355, (2028/04/08 22:53UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 4.24 57 7Del Sco 16:00:20.0 -22:37:19 2.3 3.58 50 19Omi Sco 16:20:38.2 -24:10:10 4.0 1.34 54 PPM 265282 16:13:48.2 -24:15:20 8.5 0.67 53 PPM 265311 16:15:09.3 -23:45:35 9.7 0.09 53 42355 16:15:12.2 -23:40:21 16.6 53 Positions are for J2000
Event circumstances last updated at 2024/06/23 21:29:54 UT
Marc W. Buie, Southwest Research Institute