RECON: TNO occultation with 14YX49

Event between 14YX49 and star UC4-615-042799 with event index number of 161044

Geocentric closest approach at 2017/04/15 01:08:19 UTC

J2000 position of star is 07:56:18.6 +32:55:54
Equinox of date position of star is 07:57:23.4 +32:53:09
Stellar brightness R=16.0
Star is 130 degrees from the moon. Moon is 87% illuminated.
TNO apparent brightness V=21.9

TNO is 19.3 AU from the Sun and 19.3 AU from the Earth.
The TNO is moving 6.8 km/sec on the sky relative to the star, or, 1.7 arcsec/hr.
The 1-sigma error in the time of the event is 498 seconds.
The 1-sigma cross-track error in the shadow position is 3000 km.

The TNO has an absolute magnitude Hv=8.8
Diameter=107.2 km assuming a 5% albedo -- 15.8 sec chord
Diameter=43.7 km assuming a 30% albedo -- 6.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 14YX49, (2017/04/15 01:08UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:22.3 +27:58:59  1.1  5.45 133
PPM 073167     07:52:08.9 +33:11:20  6.0  1.14 131
PPM 073293     07:58:38.6 +32:36:33  7.3  0.38 130
PPM 073298     07:59:04.6 +32:53:36  9.2  0.35 130
PPM 073278     07:57:45.8 +32:50:00 10.3  0.09 130
14YX49         07:57:24.8 +32:53:05 16.0       130
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 14YX49, (2017/04/15 01:08UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1  5.45 133
PPM 073167     07:51:02.4 +33:14:02  6.0  1.14 131
PPM 073293     07:57:32.6 +32:39:24  7.3  0.38 130
PPM 073298     07:57:58.4 +32:56:27  9.2  0.35 130
PPM 073278     07:56:39.7 +32:52:50 10.3  0.09 130
14YX49         07:56:18.6 +32:55:54 16.0       130
Positions are for J2000

Event circumstances last updated at 2016/11/30 19:04:50 UT

Marc W. Buie, Southwest Research Institute

RECON