RECON: TNO occultation with 14JO80

Event between 14JO80 and star UC4-406-066824 with event index number of 136440

Geocentric closest approach at 2018/06/15 01:15:46 UTC

J2000 position of star is 16:35:09.5 -08:53:34
Equinox of date position of star is 16:36:04.1 -08:55:35
Stellar brightness R=16.5
Star is 146 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=22.6

TNO is 32.2 AU from the Sun and 31.3 AU from the Earth.
The TNO is moving 22.9 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 1720 seconds.
The 1-sigma cross-track error in the shadow position is 2290 km.

The TNO has an absolute magnitude Hv=7.5
Diameter=189.7 km assuming a 5% albedo -- 8.3 sec chord
Diameter=77.4 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14JO80, (2018/06/15 01:16UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.5 -26:28:17  0.9 17.59 148
13Zet Oph      16:38:10.6 -10:36:11  2.6  1.75 147
PPM 199862     16:39:48.0 -08:39:15  6.4  0.94 147
PPM 199810     16:36:59.8 -08:47:05  8.4  0.25 146
PPM 199798     16:36:19.2 -08:48:39  9.5  0.12 146
14JO80         16:36:09.9 -08:55:47 16.5       146
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 14JO80, (2018/06/15 01:16UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:55  0.9 17.59 148
13Zet Oph      16:37:09.6 -10:34:01  2.6  1.75 147
PPM 199862     16:38:47.7 -08:37:07  6.4  0.94 147
PPM 199810     16:35:59.5 -08:44:54  8.4  0.25 146
PPM 199798     16:35:18.9 -08:46:26  9.5  0.12 146
14JO80         16:35:09.5 -08:53:34 16.5       146
Positions are for J2000

Event circumstances last updated at 2016/09/05 18:15:58 UT

Marc W. Buie, Southwest Research Institute

RECON