RECON: TNO occultation with 14WR510

Event between 14WR510 and star GA1020:01950635 with event index number of 360432

Geocentric closest approach at 2020/04/17 09:37:15 UTC

J2000 position of star is 06:33:04.8 +13:01:35
Equinox of date position of star is 06:34:13.1 +13:00:36
Stellar brightness G=15.9, use SENSEUP=128
Star is 131 degrees from the moon. Moon is 27% illuminated.
TNO apparent brightness V=24.9

TNO is 29.6 AU from the Sun and 29.9 AU from the Earth.
The TNO is moving 16.1 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 287 seconds.
The 1-sigma cross-track error in the shadow position is 1429 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=192.3 km assuming a 5% albedo -- 3.7 sec chord
Diameter=78.5 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14WR510, (2020/04/17 09:37UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:16.3 +07:24:33  0.4 10.88 120
Alhena         06:38:53.1 +16:22:49  1.9  3.55 132
PPM 122607     06:32:47.4 +11:46:35  6.3  1.28 130
PPM 122725     06:36:40.0 +13:12:22  7.7  0.63 131
PPM 122649     06:34:06.5 +13:00:53  9.3  0.03 131
14WR510        06:34:13.4 +13:00:35 15.9       131
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 14WR510, (2020/04/17 09:37UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 10.88 120
Alhena         06:37:42.8 +16:23:57  1.9  3.55 132
PPM 122607     06:31:39.4 +11:47:32  6.3  1.28 130
PPM 122725     06:35:31.3 +13:13:26  7.7  0.63 131
PPM 122649     06:32:57.8 +13:01:52  9.3  0.03 131
14WR510        06:33:04.8 +13:01:35 15.9       131
Positions are for J2000

Event circumstances last updated at 2020/03/12 20:21:00 UT

Marc W. Buie, Southwest Research Institute

RECON