RECON: TNO occultation with 14KC102

Event between 14KC102 and star UC4-399-067263 with event index number of 199736

Geocentric closest approach at 2018/07/09 10:57:55 UTC

J2000 position of star is 17:19:32.7 -10:14:07
Equinox of date position of star is 17:20:32.1 -10:15:09
Stellar brightness R=15.9, use SENSEUP=128
Star is 156 degrees from the moon. Moon is 19% illuminated.
TNO apparent brightness V=21.9

TNO is 30.3 AU from the Sun and 29.4 AU from the Earth.
The TNO is moving 20.4 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 370 seconds.
The 1-sigma cross-track error in the shadow position is 1860 km.

The TNO has an absolute magnitude Hv=7.0
Diameter=239.9 km assuming a 5% albedo -- 11.8 sec chord
Diameter=97.9 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14KC102, (2018/07/09 10:58UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.7 -26:28:18  0.9 20.06 164
35Eta Oph      17:11:26.5 -15:44:48  2.6  5.93 158
PPM 232685     17:10:49.5 -10:32:46  5.6  2.41 158
PPM 232903     17:19:41.8 -10:14:16  8.1  0.21 156
PPM 232921     17:20:40.9 -10:18:36  9.6  0.06 156
14KC102        17:20:34.1 -10:15:11 15.9       155
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 14KC102, (2018/07/09 10:58UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 20.06 164
35Eta Oph      17:10:22.7 -15:43:29  2.6  5.93 158
PPM 232685     17:09:48.0 -10:31:26  5.6  2.41 158
PPM 232903     17:18:40.4 -10:13:10  8.1  0.21 156
PPM 232921     17:19:39.5 -10:17:32  9.6  0.06 156
14KC102        17:19:32.7 -10:14:07 15.9       156
Positions are for J2000

Event circumstances last updated at 2017/12/04 18:49:56 UT

Marc W. Buie, Southwest Research Institute

RECON