RECON: TNO occultation with 533207

Event between (533207) 14DJ143 and star GA0700:06725304 with event index number of 2592926

Geocentric closest approach at 2028/09/05 11:17:20 UTC

J2000 position of star is 16:42:30.3 -19:06:36
Equinox of date position of star is 16:43:56.3 -19:09:17
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 108 degrees from the moon. Moon is 98% illuminated.
Apparent brightness V=22.5

Object is 37.5 AU from the Sun and 37.5 AU from the Earth.
Apparent velocity is 6.3 km/sec on the sky relative to the star, or, 0.8 arcsec/hr.
The 1-sigma error in the time of the event is 377 seconds.
The 1-sigma cross-track error in the shadow position is 3141 km.

The object has an absolute magnitude Hv=6.6
Diameter=289.7 km assuming a 5% albedo -- 46.4 sec chord
Diameter=118.3 km assuming a 30% albedo -- 18.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 533207, (2028/09/05 11:01UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:10.3 -26:29:35  0.9  7.92 110
35Eta Oph      17:12:01.5 -15:45:30  2.6  7.46 101
PPM 232040     16:43:35.1 -19:58:37  5.8  0.83 107
PPM 232092     16:45:45.2 -18:35:34  7.4  0.68 107
PPM 232041     16:43:38.1 -18:59:23  9.4  0.22 107
533207         16:44:11.1 -19:09:44 16.5       107
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 533207, (2028/09/05 11:01UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  7.92 110
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.46 101
PPM 232040     16:41:53.8 -19:55:27  5.8  0.83 107
PPM 232092     16:44:04.8 -18:32:29  7.4  0.68 107
PPM 232041     16:41:57.5 -18:56:13  9.4  0.22 107
533207         16:42:30.3 -19:06:36 16.5       107
Positions are for J2000

Event circumstances last updated at 2024/06/24 21:33:57 UT

Marc W. Buie, Southwest Research Institute

RECON