RECON: TNO occultation with 05EN302

Event between 05EN302 and star GA0800:04405718 with event index number of 186691

Geocentric closest approach at 2019/04/28 23:44:06 UTC

J2000 position of star is 13:40:34.5 -09:14:30
Equinox of date position of star is 13:41:35.3 -09:20:18
Stellar brightness G=14.8, use SENSEUP=128
Star is 124 degrees from the moon. Moon is 31% illuminated.
TNO apparent brightness V=23.7

TNO is 48.1 AU from the Sun and 47.1 AU from the Earth.
The TNO is moving 24.9 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 179 seconds.
The 1-sigma cross-track error in the shadow position is 3227 km.

The TNO has an absolute magnitude Hv=6.9
Diameter=246.6 km assuming a 5% albedo -- 9.8 sec chord
Diameter=100.7 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 05EN302, (2019/04/28 23:44UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:12.8 -11:15:42  1.0  4.24 127
82 Vir         13:42:37.8 -08:48:00  5.0  0.60 124
PPM 196719     13:39:41.6 -09:59:02  8.3  0.80 124
PPM 196749     13:41:21.4 -09:23:42  9.3  0.08 124
05EN302        13:41:35.7 -09:20:21 14.8       124
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 05EN302, (2019/04/28 23:44UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0  4.24 127
82 Vir         13:41:36.7 -08:42:10  5.0  0.60 124
PPM 196719     13:38:40.2 -09:53:11  8.3  0.80 124
PPM 196749     13:40:20.1 -09:17:51  9.3  0.08 124
05EN302        13:40:34.5 -09:14:30 14.8       124
Positions are for J2000

Event circumstances last updated at 2019/03/13 21:53:02 UT

Marc W. Buie, Southwest Research Institute

RECON