RECON: TNO occultation with 14KC102

Event between 14KC102 and star GA0780:07051482 with event index number of 336305

Geocentric closest approach at 2020/10/10 12:06:46 UTC

J2000 position of star is 17:37:49.4 -11:14:05
Equinox of date position of star is 17:38:56.8 -11:14:43
Stellar brightness G=15.8, use SENSEUP=128
Star is 148 degrees from the moon. Moon is 45% illuminated.
TNO apparent brightness V=25.0

TNO is 29.9 AU from the Sun and 30.3 AU from the Earth.
The TNO is moving 19.0 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 243 seconds.
The 1-sigma cross-track error in the shadow position is 2176 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=226.0 km assuming a 5% albedo -- 3.2 sec chord
Diameter=92.2 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14KC102, (2020/10/10 12:07UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:41.1 -26:28:35  0.9 22.15 137
35Eta Oph      17:11:34.3 -15:44:57  2.6  8.04 143
PPM 233365     17:39:18.7 -10:56:13  5.7  0.32 148
PPM 233403     17:40:37.5 -11:16:37  8.4  0.40 148
PPM 233352     17:38:45.9 -11:33:34  9.8  0.32 148
14KC102        17:38:58.8 -11:14:44 15.8       148
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, (2020/10/10 12:07UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 22.15 137
35Eta Oph      17:10:22.7 -15:43:29  2.6  8.04 143
PPM 233365     17:38:09.5 -10:55:35  5.7  0.32 148
PPM 233403     17:39:28.1 -11:16:01  8.4  0.40 148
PPM 233352     17:37:36.3 -11:32:54  9.8  0.32 148
14KC102        17:37:49.4 -11:14:05 15.8       148
Positions are for J2000

Event circumstances last updated at 2020/03/11 21:22:21 UT

Marc W. Buie, Southwest Research Institute

RECON