Event between (517717) 15KZ120 and star GA1420:02352393 with event index number of 2628014
Geocentric closest approach at 2025/01/20 19:13:09 UTC
J2000 position of star is 03:25:20.8 +52:40:58
Equinox of date position of star is 03:27:02.2 +52:45:42
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 129 degrees from the moon.
Moon is 60% illuminated.
TNO apparent brightness V=21.7
TNO is 13.7 AU from the Sun
and 13.2 AU from the Earth.
The TNO is moving 26.9
km/sec on the sky relative to the star, or,
10.1 arcsec/hr.
The 1-sigma error in the time of the event is 115 seconds.
The 1-sigma cross-track error in the shadow position is
2082 km.
The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 2.1 sec chord
Diameter=23.5 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2025/01/20 19:13UT) Object RA Dec mag sep mel Pollux 07:46:50.9 +27:57:49 1.1 53.13 87 Mirphak 03:26:07.5 +49:56:54 1.8 2.83 131 PPM 028555 03:35:34.5 +55:03:28 5.9 2.60 126 PPM 028463 03:27:35.2 +52:50:19 7.9 0.09 129 517717 03:27:12.3 +52:46:10 15.8 128 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 517717, (2025/01/20 19:13UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 53.13 87 Mirphak 03:24:19.4 +49:51:40 1.8 2.83 131 PPM 028555 03:33:39.0 +54:58:30 5.9 2.60 126 PPM 028463 03:25:43.5 +52:45:08 7.9 0.09 129 517717 03:25:20.8 +52:40:58 15.8 129 Positions are for J2000
Event circumstances last updated at 2022/10/23 03:29:19 UT
Marc W. Buie, Southwest Research Institute