RECON: TNO occultation with 459865

Event between (459865) 13XZ8 and star GA0800:21917076 with event index number of 2776601

Geocentric closest approach at 2029/06/17 04:47:56 UTC

J2000 position of star is 19:52:00.6 -08:24:56
Equinox of date position of star is 19:53:20.1 -08:21:05
Stellar brightness G=14.2, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 150 degrees from the moon. Moon is 26% illuminated.
Apparent brightness V=20.6

Object is 12.6 AU from the Sun and 11.7 AU from the Earth.
Apparent velocity is 18.2 km/sec on the sky relative to the star, or, 7.7 arcsec/hr.
The 1-sigma error in the time of the event is 89 seconds.
The 1-sigma cross-track error in the shadow position is 1023 km.

The object has an absolute magnitude Hv=9.5
Diameter=70.8 km assuming a 5% albedo -- 4.2 sec chord
Diameter=28.9 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 459865, (2029/06/17 04:49UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:16.2 -29:27:55  1.2 48.30 154
Tarazed        19:47:39.6 +10:41:13  2.7 19.08 143
56 Aql         19:55:44.1 -08:29:44  5.4  0.55 151
PPM 203390     19:54:20.8 -07:37:10  8.1  0.74 150
PPM 203392     19:54:27.4 -08:25:31  9.5  0.23 150
459865         19:53:36.3 -08:20:17 14.2       150
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 459865, (2029/06/17 04:49UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.7 -29:37:24  1.2 48.30 154
Tarazed        19:46:15.6 +10:36:48  2.7 19.08 143
56 Aql         19:54:08.3 -08:34:28  5.4  0.55 151
PPM 203390     19:52:45.6 -07:41:51  8.1  0.74 150
PPM 203392     19:52:51.7 -08:30:12  9.5  0.23 150
459865         19:52:00.6 -08:24:56 14.2       150
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:02:30 UT

Marc W. Buie, Southwest Research Institute

RECON