Event between (60558) Echeclus and star GA1060:03051308 with event index number of 2337532
Geocentric closest approach at 2024/12/15 03:33:18 UTC
J2000 position of star is 08:10:08.2 +16:13:11
Equinox of date position of star is 08:11:30.5 +16:08:48
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 41 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=20.6
Object is 13.3 AU from the Sun
and 12.5 AU from the Earth.
Apparent velocity is 17.6
km/sec on the sky relative to the star, or,
7.0 arcsec/hr.
The 1-sigma error in the time of the event is 28 seconds.
The 1-sigma cross-track error in the shadow position is
454 km.
The object has an absolute magnitude Hv=9.2
Diameter=88.3 km assuming a 5% albedo -- 5.0 sec chord
Diameter=36.1 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
Star training set for 60558, (2024/12/15 03:33UT) Object RA Dec mag sep mel Pollux 07:46:50.5 +27:57:50 1.1 13.13 32 16Zet2Cnc 08:13:38.6 +17:34:16 5.2 1.51 41 PPM 124959 08:12:20.8 +16:16:54 8.5 0.24 42 PPM 124946 08:11:36.9 +16:08:36 9.9 0.02 41 60558 08:11:33.1 +16:08:40 15.2 42 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 60558, (2024/12/15 03:33UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 13.13 32 16Zet2Cnc 08:12:13.0 +17:38:50 5.2 1.51 41 PPM 124959 08:10:55.9 +16:21:26 8.5 0.24 42 PPM 124946 08:10:12.0 +16:13:07 9.9 0.02 41 60558 08:10:08.2 +16:13:11 15.2 41 Positions are for J2000
Event circumstances last updated at 2024/03/19 03:36:34 UT
Marc W. Buie, Southwest Research Institute