RECON: TNO occultation with 02VD130

Event between 02VD130 and star GA1160:02536167 with event index number of 211342

Geocentric closest approach at 2019/09/11 22:15:18 UTC

J2000 position of star is 06:47:05.8 +26:23:36
Equinox of date position of star is 06:48:18.2 +26:22:15
Stellar brightness G=12.8, use SENSEUP=32
Star is 136 degrees from the moon. Moon is 95% illuminated.
TNO apparent brightness V=22.6

TNO is 32.4 AU from the Sun and 32.8 AU from the Earth.
The TNO is moving 16.7 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 338 seconds.
The 1-sigma cross-track error in the shadow position is 1502 km.

The TNO has an absolute magnitude Hv=7.3
Diameter=207.0 km assuming a 5% albedo -- 12.4 sec chord
Diameter=84.5 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 2:1E+4:2II
 
 
 
 
 
 
 
 

Star training set for 02VD130, (2019/09/11 22:15UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:31.1 +27:58:37  1.1 13.04 149
Alhena         06:38:51.0 +16:22:51  1.9 10.23 134
37 Gem         06:56:31.2 +25:20:58  6.3  2.11 138
PPM 096583     06:50:24.0 +27:10:00  6.6  0.92 137
PPM 096532     06:48:19.9 +26:16:29  9.6  0.10 136
02VD130        06:48:19.2 +26:22:14 12.8       137
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 02VD130, (2019/09/11 22:15UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 13.04 149
Alhena         06:37:42.8 +16:23:57  1.9 10.23 134
37 Gem         06:55:18.6 +25:22:33  6.3  2.11 138
PPM 096583     06:49:10.3 +27:11:25  6.6  0.92 137
PPM 096532     06:47:06.6 +26:17:51  9.6  0.10 136
02VD130        06:47:05.8 +26:23:36 12.8       136
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:39:08 UT

Marc W. Buie, Southwest Research Institute

RECON