RECON: TNO occultation with 184314

Event between (184314) 05EO302 and star GA0720:05162630 with event index number of 268751

Geocentric closest approach at 2019/08/19 02:29:46 UTC

J2000 position of star is 14:12:33.0 -17:02:42
Equinox of date position of star is 14:13:37.1 -17:08:07
Stellar brightness G=14.8, use SENSEUP=128
Star is 147 degrees from the moon. Moon is 89% illuminated.
TNO apparent brightness V=22.7

TNO is 40.7 AU from the Sun and 41.1 AU from the Earth.
The TNO is moving 14.7 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 431 seconds.
The 1-sigma cross-track error in the shadow position is 3570 km.

The TNO has an absolute magnitude Hv=6.4
Diameter=316.2 km assuming a 5% albedo -- 21.4 sec chord
Diameter=129.1 km assuming a 30% albedo -- 8.8 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 184314, (2019/08/19 02:30UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:13.8 -11:15:47  1.0 12.90 160
PPM 228402     14:11:55.0 -16:23:38  4.2  0.85 148
PPM 228415     14:12:18.9 -17:07:01  8.5  0.31 147
PPM 228449     14:13:37.7 -16:56:51  9.9  0.19 147
184314         14:13:37.8 -17:08:11 14.8       147
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 184314, (2019/08/19 02:30UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 12.90 160
PPM 228402     14:10:50.5 -16:18:08  4.2  0.85 148
PPM 228415     14:11:14.2 -17:01:31  8.5  0.31 147
PPM 228449     14:12:33.0 -16:51:22  9.9  0.19 147
184314         14:12:33.0 -17:02:42 14.8       147
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:33:43 UT

Marc W. Buie, Southwest Research Institute

RECON