RECON: TNO occultation with 523719

Event between (523719) 14LM28 and star GA1460:05403227 with event index number of 2292592

Geocentric closest approach at 2024/10/19 01:00:06 UTC

J2000 position of star is 17:57:21.9 +57:35:25
Equinox of date position of star is 17:57:45.6 +57:35:20
Stellar brightness G=12.9, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 93 degrees from the moon. Moon is 96% illuminated.
Apparent brightness V=23.1

Object is 19.6 AU from the Sun and 19.7 AU from the Earth.
Apparent velocity is 25.2 km/sec on the sky relative to the star, or, 6.4 arcsec/hr.
The 1-sigma error in the time of the event is 165 seconds.
The 1-sigma cross-track error in the shadow position is 4018 km.

The object has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 2.5 sec chord
Diameter=25.8 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 523719, (2024/10/19 01:00UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:46.7 +38:48:28  0.0 19.88 102
Etamin         17:57:11.0 +51:29:13  2.2  6.10  98
32Xi Dra       17:53:57.5 +56:52:10  3.8  0.88  94
PPM 036322     18:01:39.9 +56:58:07  8.4  0.81  94
PPM 036310     18:00:47.6 +57:25:06  9.4  0.44  93
PPM 036258     17:56:03.6 +57:47:10 10.7  0.30  93
523719         17:57:45.9 +57:35:19 12.9        93
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, (2024/10/19 01:00UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 19.88 102
Etamin         17:56:36.3 +51:29:20  2.2  6.10  98
32Xi Dra       17:53:32.0 +56:52:23  3.8  0.88  94
PPM 036322     18:01:14.6 +56:58:03  8.4  0.81  94
PPM 036310     18:00:23.1 +57:25:04  9.4  0.44  93
PPM 036258     17:55:40.0 +57:47:19 10.7  0.30  93
523719         17:57:21.9 +57:35:25 12.9        93
Positions are for J2000

Event circumstances last updated at 2024/06/11 03:51:22 UT

Marc W. Buie, Southwest Research Institute

RECON