Event between (119979) 02WC19 and star GA1100:02340574 with event index number of 2116189
Geocentric closest approach at 2025/11/05 03:21:47 UTC
J2000 position of star is 06:41:48.8 +21:15:41
Equinox of date position of star is 06:43:15.7 +21:14:11
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 63 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=20.7
Object is 38.9 AU from the Sun
and 38.3 AU from the Earth.
Apparent velocity is 11.6
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 639 seconds.
The 1-sigma cross-track error in the shadow position is
1689 km.
The object has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 60.6 sec chord
Diameter=282.4 km assuming a 30% albedo -- 24.8 sec chord
Dynamical classification is 2:1E
Star training set for 119979, (2025/11/05 03:21UT) Object RA Dec mag sep mel Pollux 07:46:53.8 +27:57:42 1.1 15.91 76 Alhena 06:39:12.3 +16:22:30 1.9 4.96 63 PPM 096308 06:40:38.5 +22:00:21 6.0 1.00 62 PPM 096360 06:42:15.1 +20:54:49 8.4 0.41 63 PPM 096388 06:43:20.7 +21:09:37 9.0 0.07 63 119979 06:43:21.5 +21:14:05 15.1 63 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 119979, (2025/11/05 03:21UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 15.91 76 Alhena 06:37:42.8 +16:23:57 1.9 4.96 63 PPM 096308 06:39:05.3 +22:01:51 6.0 1.00 62 PPM 096360 06:40:42.6 +20:56:23 8.4 0.41 63 PPM 096388 06:41:48.0 +21:11:13 9.0 0.07 63 119979 06:41:48.8 +21:15:41 15.1 63 Positions are for J2000
Event circumstances last updated at 2024/03/21 22:30:25 UT
Marc W. Buie, Southwest Research Institute