RECON: TNO occultation with 120132

Event between (120132) 03FY128 and star GA0640:06707579 with event index number of 2745727

Geocentric closest approach at 2029/04/08 00:28:13 UTC

J2000 position of star is 14:30:21.6 -25:58:09
Equinox of date position of star is 14:31:46.5 -26:04:36
Stellar brightness G=14.4, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 91 degrees from the moon. Moon is 29% illuminated.
Apparent brightness V=21.0

Object is 42.2 AU from the Sun and 41.3 AU from the Earth.
Apparent velocity is 22.0 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 102 seconds.
The 1-sigma cross-track error in the shadow position is 1815 km.

The object has an absolute magnitude Hv=4.7
Diameter=663.8 km assuming a 5% albedo -- 30.8 sec chord
Diameter=271.0 km assuming a 30% albedo -- 12.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 120132, (2029/04/08 00:26UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:44.4 -11:18:47  1.0 21.35 110
5The Cen       14:08:25.2 -36:30:42  2.1 11.57  93
PPM 262884     14:26:29.3 -24:56:15  5.3  1.71  92
PPM 263016     14:31:12.8 -26:08:33  7.0  0.19  91
PPM 263055     14:32:34.9 -26:14:25  8.9  0.19  91
120132         14:32:03.3 -26:05:52 14.4        90
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, (2029/04/08 00:26UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 21.35 110
5The Cen       14:06:40.0 -36:22:24  2.1 11.57  93
PPM 262884     14:24:48.5 -24:48:23  5.3  1.71  92
PPM 263016     14:29:31.1 -26:00:48  7.0  0.19  91
PPM 263055     14:30:53.1 -26:06:42  8.9  0.19  91
120132         14:30:21.6 -25:58:09 14.4        91
Positions are for J2000

Event circumstances last updated at 2024/06/10 02:04:17 UT

Marc W. Buie, Southwest Research Institute

RECON