RECON: TNO occultation with 14LP28

Event between 14LP28 and star GA0860:16813567 with event index number of 1044478

Geocentric closest approach at 2020/06/15 17:08:15 UTC

J2000 position of star is 22:11:17.0 -03:35:38
Equinox of date position of star is 22:12:19.9 -03:29:38
Stellar brightness G=16.4, use SENSEUP=128
Star is 50 degrees from the moon. Moon is 28% illuminated.
TNO apparent brightness V=26.1

TNO is 39.2 AU from the Sun and 38.9 AU from the Earth.
The TNO is moving 6.2 km/sec on the sky relative to the star, or, 0.8 arcsec/hr.
The 1-sigma error in the time of the event is 736 seconds.
The 1-sigma cross-track error in the shadow position is 1531 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=331.1 km assuming a 5% albedo -- 9.8 sec chord
Diameter=135.2 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 14LP28, (2020/06/15 17:08UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:46.6 -29:30:48  1.2 28.25  49
Markab         23:05:46.9 +15:18:56  2.5 22.99  37
PPM 206055     22:11:37.7 -04:09:56  6.0  0.70  50
PPM 206047     22:11:24.9 -03:47:35  6.6  0.38  50
PPM 206059     22:11:56.5 -03:38:55  9.1  0.19  50
14LP28         22:12:20.7 -03:29:33 16.4        49
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 14LP28, (2020/06/15 17:08UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:23  1.2 28.25  49
Markab         23:04:45.8 +15:12:18  2.5 22.99  37
PPM 206055     22:10:33.9 -04:16:00  6.0  0.70  50
PPM 206047     22:10:21.1 -03:53:40  6.6  0.38  50
PPM 206059     22:10:52.8 -03:44:59  9.1  0.19  50
14LP28         22:11:17.0 -03:35:38 16.4        50
Positions are for J2000

Event circumstances last updated at 2020/03/11 20:51:15 UT

Marc W. Buie, Southwest Research Institute

RECON