RECON: TNO occultation with 523702

Event between (523702) 14HW199 and star GA0740:07218343 with event index number of 2706015

Geocentric closest approach at 2029/02/14 17:56:15 UTC

J2000 position of star is 17:14:41.5 -14:05:40
Equinox of date position of star is 17:16:01.5 -14:07:11
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 82 degrees from the moon. Moon is 2% illuminated.
Apparent brightness V=22.3

Object is 40.7 AU from the Sun and 41.1 AU from the Earth.
Apparent velocity is 17.7 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 288 seconds.
The 1-sigma cross-track error in the shadow position is 1815 km.

The object has an absolute magnitude Hv=6.0
Diameter=373.3 km assuming a 5% albedo -- 21.3 sec chord
Diameter=152.4 km assuming a 30% albedo -- 8.7 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 523702, (2029/02/14 17:56UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:11.9 -26:29:38  0.9 16.26  91
35Eta Oph      17:12:03.0 -15:45:32  2.6  1.93  82
PPM 232829     17:16:59.8 -14:36:54  5.9  0.51  81
PPM 232827     17:16:52.7 -14:27:56  8.4  0.36  81
PPM 232818     17:16:22.7 -14:12:00  9.4  0.07  81
523702         17:16:20.6 -14:07:33 16.9        81
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 523702, (2029/02/14 17:56UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.26  91
35Eta Oph      17:10:22.7 -15:43:29  2.6  1.93  82
PPM 232829     17:15:20.3 -14:35:03  5.9  0.51  81
PPM 232827     17:15:13.3 -14:26:05  8.4  0.36  81
PPM 232818     17:14:43.4 -14:10:07  9.4  0.07  81
523702         17:14:41.5 -14:05:40 16.9        81
Positions are for J2000

Event circumstances last updated at 2023/07/08 02:13:45 UT

Marc W. Buie, Southwest Research Institute

RECON