RECON: TNO occultation with 14LU28

Event between 14LU28 and star GA0820:05864477 with event index number of 1044248

Geocentric closest approach at 2019/05/19 14:52:05 UTC

J2000 position of star is 17:19:43.4 -07:32:04
Equinox of date position of star is 17:20:45.5 -07:33:10
Stellar brightness G=15.3, use SENSEUP=128
Star is 17 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=22.5

TNO is 36.6 AU from the Sun and 35.7 AU from the Earth.
The TNO is moving 22.3 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 132 seconds.
The 1-sigma cross-track error in the shadow position is 2221 km.

The TNO has an absolute magnitude Hv=6.8
Diameter=257.0 km assuming a 5% albedo -- 11.5 sec chord
Diameter=104.9 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 14LU28, (2019/05/19 14:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.9 -26:28:24  0.9 22.36   8
35Eta Oph      17:11:29.5 -15:44:51  2.6  8.50  11
PPM 200511     17:17:45.1 -06:15:54  6.0  1.49  17
PPM 200560     17:21:03.4 -08:02:35  8.2  0.49  17
PPM 200552     17:20:21.2 -07:35:48  9.5  0.11  17
14LU28         17:20:46.4 -07:33:11 15.3        17
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 14LU28, (2019/05/19 14:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 22.36   8
35Eta Oph      17:10:22.7 -15:43:29  2.6  8.50  11
PPM 200511     17:16:42.8 -06:14:42  6.0  1.49  17
PPM 200560     17:20:00.2 -08:01:28  8.2  0.49  17
PPM 200552     17:19:18.2 -07:34:40  9.5  0.11  17
14LU28         17:19:43.4 -07:32:04 15.3        17
Positions are for J2000

Event circumstances last updated at 2019/02/12 07:57:51 UT

Marc W. Buie, Southwest Research Institute

RECON