RECON: TNO occultation with 14TC86

Event between 14TC86 and star UC4-555-043647 with event index number of 160855

Geocentric closest approach at 2018/09/25 03:07:39 UTC

J2000 position of star is 08:15:05.8 +20:52:24
Equinox of date position of star is 08:16:08.5 +20:49:03
Stellar brightness R=16.4, use SENSEUP=128
Star is 119 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.0

TNO is 41.6 AU from the Sun and 42.1 AU from the Earth.
The TNO is moving 18.9 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 1318 seconds.
The 1-sigma cross-track error in the shadow position is 2599 km.

The TNO has an absolute magnitude Hv=5.6
Diameter=448.8 km assuming a 5% albedo -- 23.7 sec chord
Diameter=183.2 km assuming a 30% albedo -- 9.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 14TC86, (2018/09/25 03:08UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:27.6 +27:58:46  1.1  9.85 111
10Mu 2Cnc      08:08:51.8 +21:31:34  5.3  1.85 117
PPM 098505     08:16:01.0 +21:01:20  8.2  0.21 119
14TC86         08:16:11.4 +20:48:54 16.4       119
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 14TC86, (2018/09/25 03:08UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1  9.85 111
10Mu 2Cnc      08:07:45.9 +21:34:53  5.3  1.85 117
PPM 098505     08:14:55.4 +21:04:49  8.2  0.21 119
14TC86         08:15:05.8 +20:52:24 16.4       119
Positions are for J2000

Event circumstances last updated at 2017/12/05 18:57:48 UT

Marc W. Buie, Southwest Research Institute

RECON