RECON: TNO occultation with 523715

Event between (523715) 14KU101 and star GA0680:07043051 with event index number of 2721415

Geocentric closest approach at 2029/03/04 13:29:12 UTC

J2000 position of star is 16:14:01.7 -21:25:41
Equinox of date position of star is 16:15:28.5 -21:29:19
Stellar brightness G=15.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 28 degrees from the moon. Moon is 79% illuminated.
Apparent brightness V=22.1

Object is 37.9 AU from the Sun and 37.8 AU from the Earth.
Apparent velocity is 1.1 km/sec on the sky relative to the star, or, 0.1 arcsec/hr.
The 1-sigma error in the time of the event is 1497 seconds.
The 1-sigma cross-track error in the shadow position is 3316 km.

The object has an absolute magnitude Hv=6.2
Diameter=332.7 km assuming a 5% albedo -- 303.9 sec chord
Diameter=135.8 km assuming a 30% albedo -- 124.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 523715, (2029/03/04 13:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.1 -26:29:39  0.9  6.11  31
8Bet1Sco       16:07:08.3 -19:52:58  2.6  2.58  26
PPM 265352     16:18:41.8 -20:10:27  6.5  1.49  28
PPM 265275     16:15:23.6 -21:28:19  7.0  0.09  27
523715         16:15:45.1 -21:30:00 15.2        28
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 523715, (2029/03/04 13:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  6.11  31
8Bet1Sco       16:05:26.2 -19:48:20  2.6  2.58  26
PPM 265352     16:16:59.2 -20:06:15  6.5  1.49  28
PPM 265275     16:13:40.2 -21:24:00  7.0  0.09  27
523715         16:14:01.7 -21:25:41 15.2        28
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:32:50 UT

Marc W. Buie, Southwest Research Institute

RECON