RECON: TNO occultation with 523719

Event between (523719) 14LM28 and star GA1640:01700161 with event index number of 2777006

Geocentric closest approach at 2029/06/09 23:21:20 UTC

J2000 position of star is 21:15:47.9 +75:33:54
Equinox of date position of star is 21:15:39.4 +75:40:04
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 69 degrees from the moon. Moon is 5% illuminated.
Apparent brightness V=23.9

Object is 23.6 AU from the Sun and 23.8 AU from the Earth.
Apparent velocity is 28.6 km/sec on the sky relative to the star, or, 6.0 arcsec/hr.
The 1-sigma error in the time of the event is 454 seconds.
The 1-sigma cross-track error in the shadow position is 3707 km.

The object has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 2.2 sec chord
Diameter=25.8 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 523719, (2029/06/09 23:21UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:26.2 +45:23:12  1.3 30.51  82
Alderamin      21:19:16.6 +62:42:39  2.4 12.98  71
PPM 010703     20:54:21.0 +76:02:20  6.0  1.35  70
PPM 010770     21:09:24.1 +75:20:54  7.3  0.52  70
PPM 010821     21:19:16.2 +75:44:46  9.8  0.23  69
PPM 010811     21:16:36.8 +75:28:11 11.0  0.23  69
523719         21:15:37.6 +75:41:19 17.0        69
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 523719, (2029/06/09 23:21UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 30.51  82
Alderamin      21:18:35.3 +62:35:09  2.4 12.98  71
PPM 010703     20:54:44.5 +75:55:33  6.0  1.35  70
PPM 010770     21:09:35.0 +75:13:40  7.3  0.52  70
PPM 010821     21:19:25.1 +75:37:15  9.8  0.23  69
PPM 010811     21:16:45.1 +75:20:45 11.0  0.23  69
523719         21:15:47.9 +75:33:54 17.0        69
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:00:47 UT

Marc W. Buie, Southwest Research Institute

RECON