RECON: TNO occultation with 14WE510

Event between 14WE510 and star GA1020:00785652 with event index number of 360582

Geocentric closest approach at 2019/09/13 02:06:03 UTC

J2000 position of star is 05:22:36.0 +12:59:00
Equinox of date position of star is 05:23:41.7 +13:00:03
Stellar brightness G=13.6, use SENSEUP=64
Star is 102 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=22.5

TNO is 27.3 AU from the Sun and 27.3 AU from the Earth.
The TNO is moving 6.4 km/sec on the sky relative to the star, or, 1.2 arcsec/hr.
The 1-sigma error in the time of the event is 376 seconds.
The 1-sigma cross-track error in the shadow position is 1619 km.

The TNO has an absolute magnitude Hv=7.9
Diameter=159.2 km assuming a 5% albedo -- 25.1 sec chord
Diameter=65.0 km assuming a 30% albedo -- 10.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14WE510, (2019/09/13 02:06UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:14.3 +07:24:33  0.4  9.76 109
Bellatrix      05:26:11.3 +06:21:57  1.6  6.66 101
18 Ori         05:17:09.9 +11:21:43  5.6  2.29 100
PPM 120907     05:24:50.3 +12:47:34  8.3  0.34 102
PPM 120887     05:23:49.4 +13:14:47  9.3  0.25 102
14WE510        05:23:42.6 +13:00:04 13.6       102
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 14WE510, (2019/09/13 02:06UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  9.76 109
Bellatrix      05:25:07.8 +06:20:58  1.6  6.66 101
18 Ori         05:16:04.1 +11:20:29  5.6  2.29 100
PPM 120907     05:23:43.8 +12:46:33  8.3  0.34 102
PPM 120887     05:22:42.7 +13:13:44  9.3  0.25 102
14WE510        05:22:36.0 +12:59:00 13.6       102
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:39:21 UT

Marc W. Buie, Southwest Research Institute

RECON