RECON: TNO occultation with 05GX206

Event between 05GX206 and star GA0860:04310123 with event index number of 235824

Geocentric closest approach at 2019/12/29 16:19:57 UTC

J2000 position of star is 14:13:26.0 -03:40:35
Equinox of date position of star is 14:14:26.7 -03:46:00
Stellar brightness G=14.6, use SENSEUP=128
Star is 106 degrees from the moon. Moon is 12% illuminated.
TNO apparent brightness V=22.6

TNO is 33.2 AU from the Sun and 33.6 AU from the Earth.
The TNO is moving 19.7 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 108 seconds.
The 1-sigma cross-track error in the shadow position is 1463 km.

The TNO has an absolute magnitude Hv=7.2
Diameter=214.8 km assuming a 5% albedo -- 10.9 sec chord
Diameter=87.7 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is 7:2EEEEE
 
 
 
 
 
 
 
 

Star training set for 05GX206, (2019/12/29 16:20UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:15.0 -11:15:54  1.0 14.10 114
99Iot Vir      14:17:04.0 -06:05:42  4.1  2.41 105
PPM 197344     14:15:58.0 -03:43:08  8.5  0.38 106
PPM 197314     14:13:49.4 -03:47:34  9.1  0.16 106
05GX206        14:14:28.4 -03:46:10 14.6       106
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 05GX206, (2019/12/29 16:20UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 14.10 114
99Iot Vir      14:16:00.9 -06:00:10  4.1  2.41 105
PPM 197344     14:14:55.6 -03:37:35  8.5  0.38 106
PPM 197314     14:12:47.0 -03:41:59  9.1  0.16 106
05GX206        14:13:26.0 -03:40:35 14.6       106
Positions are for J2000

Event circumstances last updated at 2019/06/07 23:05:25 UT

Marc W. Buie, Southwest Research Institute

RECON