RECON: TNO occultation with 500877

Event between (500877) 13JE64 and star GA0700:13831381 with event index number of 2778181

Geocentric closest approach at 2029/06/06 22:23:44 UTC

J2000 position of star is 17:35:31.8 -19:56:50
Equinox of date position of star is 17:36:58.9 -19:57:41
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 113 degrees from the moon. Moon is 24% illuminated.
Apparent brightness V=24.2

Object is 39.6 AU from the Sun and 38.6 AU from the Earth.
Apparent velocity is 24.1 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 737 seconds.
The 1-sigma cross-track error in the shadow position is 5031 km.

The object has an absolute magnitude Hv=8.3
Diameter=138.0 km assuming a 5% albedo -- 5.4 sec chord
Diameter=56.4 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 
 
 

Star training set for 500877, (2029/06/06 22:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.0 -26:29:41  0.9 16.50 129
35Eta Oph      17:12:04.1 -15:45:33  2.6  7.32 119
PPM 267109     17:40:31.1 -21:55:38  6.4  2.10 113
PPM 233364     17:39:53.3 -19:59:22  8.5  0.61 113
PPM 233293     17:37:18.0 -19:54:49  9.1  0.05 113
500877         17:37:16.5 -19:57:50 16.9       113
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 500877, (2029/06/06 22:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.50 129
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.32 119
PPM 267109     17:38:44.8 -21:54:46  6.4  2.10 113
PPM 233364     17:38:08.6 -19:58:28  8.5  0.61 113
PPM 233293     17:35:33.3 -19:53:49  9.1  0.05 113
500877         17:35:31.8 -19:56:50 16.9       113
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:00:39 UT

Marc W. Buie, Southwest Research Institute

RECON