RECON: TNO occultation with 120132

Event between (120132) 03FY128 and star GA0660:06028273 with event index number of 2428825

Geocentric closest approach at 2026/06/09 09:18:42 UTC

J2000 position of star is 14:08:30.6 -23:45:07
Equinox of date position of star is 14:09:53.4 -23:52:01
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 142 degrees from the moon. Moon is 40% illuminated.
Apparent brightness V=21.0

Object is 41.6 AU from the Sun and 40.8 AU from the Earth.
Apparent velocity is 17.9 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 93 seconds.
The 1-sigma cross-track error in the shadow position is 1657 km.

The object has an absolute magnitude Hv=4.7
Diameter=663.8 km assuming a 5% albedo -- 37.9 sec chord
Diameter=271.0 km assuming a 30% albedo -- 15.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 120132, (2026/06/09 09:17UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:35.4 -11:17:54  1.0 16.27 157
5The Cen       14:08:15.1 -36:29:53  2.1 12.63 135
PPM 262630     14:13:54.7 -24:29:11  6.2  1.08 141
PPM 262524     14:09:18.1 -23:25:18  8.3  0.48 142
PPM 262539     14:09:54.4 -24:03:01  9.6  0.18 142
120132         14:10:00.2 -23:52:35 16.3       141
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 120132, (2026/06/09 09:17UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 16.27 157
5The Cen       14:06:40.0 -36:22:23  2.1 12.63 135
PPM 262630     14:12:24.6 -24:21:48  6.2  1.08 141
PPM 262524     14:07:48.7 -23:17:50  8.3  0.48 142
PPM 262539     14:08:24.7 -23:55:33  9.6  0.18 142
120132         14:08:30.6 -23:45:07 16.3       142
Positions are for J2000

Event circumstances last updated at 2024/06/10 01:52:48 UT

Marc W. Buie, Southwest Research Institute

RECON