RECON: TNO occultation with 14KB102

Event between 14KB102 and star UC4-376-080449 with event index number of 137829

Geocentric closest approach at 2018/07/07 18:42:39 UTC

J2000 position of star is 17:06:24.1 -14:59:51
Equinox of date position of star is 17:07:23.6 -15:01:11
Stellar brightness R=16.5, use SENSEUP=128
Star is 137 degrees from the moon. Moon is 35% illuminated.
TNO apparent brightness V=22.1

TNO is 32.8 AU from the Sun and 31.9 AU from the Earth.
The TNO is moving 19.7 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 1144 seconds.
The 1-sigma cross-track error in the shadow position is 3833 km.

The TNO has an absolute magnitude Hv=6.9
Diameter=253.5 km assuming a 5% albedo -- 12.9 sec chord
Diameter=103.5 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 
 
 

Star training set for 14KB102, (2018/07/07 18:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.7 -26:28:18  0.9 14.33 142
35Eta Oph      17:11:26.5 -15:44:48  2.6  1.20 136
PPM 232829     17:16:23.5 -14:36:14  5.9  2.20 134
PPM 232610     17:07:32.4 -13:57:32  7.6  1.06 137
PPM 232604     17:07:13.4 -15:25:52  9.2  0.41 137
14KB102        17:07:27.5 -15:01:16 16.5       136
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 14KB102, (2018/07/07 18:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 14.33 142
35Eta Oph      17:10:22.7 -15:43:29  2.6  1.20 136
PPM 232829     17:15:20.3 -14:35:03  5.9  2.20 134
PPM 232610     17:06:29.5 -13:56:07  7.6  1.06 137
PPM 232604     17:06:09.9 -15:24:26  9.2  0.41 137
14KB102        17:06:24.1 -14:59:51 16.5       137
Positions are for J2000

Event circumstances last updated at 2017/05/18 18:06:44 UT

Marc W. Buie, Southwest Research Institute

RECON