RECON: TNO occultation with 05GV210

Event between 05GV210 and star UC4-429-056647 with event index number of 174691

Geocentric closest approach at 2019/01/09 07:13:42 UTC

J2000 position of star is 13:45:02.5 -04:24:00
Equinox of date position of star is 13:45:56.5 -04:29:11
Stellar brightness R=14.5, use SENSEUP=128
Star is 118 degrees from the moon. Moon is 9% illuminated.
TNO apparent brightness V=23.3

TNO is 42.8 AU from the Sun and 42.9 AU from the Earth.
The TNO is moving 9.1 km/sec on the sky relative to the star, or, 1.1 arcsec/hr.
The 1-sigma error in the time of the event is 1600 seconds.
The 1-sigma cross-track error in the shadow position is 4810 km.

The TNO has an absolute magnitude Hv=6.8
Diameter=269.2 km assuming a 5% albedo -- 29.6 sec chord
Diameter=109.9 km assuming a 30% albedo -- 12.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 05GV210, (2019/01/09 07:14UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:11.9 -11:15:36  1.0  8.36 120
80 Vir         13:36:30.8 -05:29:33  5.7  2.57 120
PPM 196807     13:44:29.6 -04:22:11  7.2  0.40 118
PPM 196836     13:45:47.3 -04:33:22  9.9  0.09 118
05GV210        13:46:01.9 -04:29:42 14.5       118
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 05GV210, (2019/01/09 07:14UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0  8.36 120
80 Vir         13:35:31.3 -05:23:45  5.7  2.57 120
PPM 196807     13:43:30.3 -04:16:29  7.2  0.40 118
PPM 196836     13:44:47.9 -04:27:40  9.9  0.09 118
05GV210        13:45:02.5 -04:24:00 14.5       118
Positions are for J2000

Event circumstances last updated at 2017/04/24 16:37:18 UT

Marc W. Buie, Southwest Research Institute

RECON