RECON: TNO occultation with 47932

Event between (47932) 00GN171 and star GA0560:36779724 with event index number of 2721127

Geocentric closest approach at 2029/03/11 15:24:35 UTC

J2000 position of star is 18:08:38.1 -33:06:17
Equinox of date position of star is 18:10:14.7 -33:05:57
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 42 degrees from the moon. Moon is 11% illuminated.
Apparent brightness V=21.4

Object is 30.6 AU from the Sun and 30.8 AU from the Earth.
Apparent velocity is 13.1 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 676 seconds.
The 1-sigma cross-track error in the shadow position is 5637 km.

The object has an absolute magnitude Hv=6.3
Diameter=346.7 km assuming a 5% albedo -- 25.5 sec chord
Diameter=141.6 km assuming a 30% albedo -- 10.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 47932, (2029/03/11 15:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.1 -26:29:39  0.9 22.48  63
Kap Sco        17:44:30.6 -39:02:31  2.4  7.93  49
PPM 297329     18:11:54.8 -32:42:46  6.5  0.48  42
PPM 297285     18:09:56.5 -32:53:14  8.1  0.25  42
PPM 297305     18:10:54.7 -32:53:06  9.5  0.23  42
47932          18:10:33.3 -33:05:53 16.4        42
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 47932, (2029/03/11 15:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 22.48  63
Kap Sco        17:42:29.3 -39:01:49  2.4  7.93  49
PPM 297329     18:10:00.0 -32:43:14  6.5  0.48  42
PPM 297285     18:08:01.5 -32:53:37  8.1  0.25  42
PPM 297305     18:08:59.7 -32:53:31  9.5  0.23  42
47932          18:08:38.1 -33:06:17 16.4        42
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:32:54 UT

Marc W. Buie, Southwest Research Institute

RECON