RECON: TNO occultation with 10VX224

Event between 10VX224 and star GA0940:00369761 with event index number of 235043

Geocentric closest approach at 2019/01/08 12:30:50 UTC

J2000 position of star is 04:04:56.8 +04:41:21
Equinox of date position of star is 04:05:55.3 +04:44:18
Stellar brightness G=14.4, use SENSEUP=64
Star is 104 degrees from the moon. Moon is 5% illuminated.
TNO apparent brightness V=22.2

TNO is 38.5 AU from the Sun and 37.9 AU from the Earth.
The TNO is moving 16.8 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 459 seconds.
The 1-sigma cross-track error in the shadow position is 1919 km.

The TNO has an absolute magnitude Hv=6.3
Diameter=329.6 km assuming a 5% albedo -- 19.6 sec chord
Diameter=134.6 km assuming a 30% albedo -- 8.0 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 10VX224, (2019/01/08 12:31UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.9 +16:32:46  0.8 14.05 115
Menkar         03:03:16.6 +04:09:48  2.5 15.63  89
40 Tau         04:04:45.2 +05:29:12  5.2  0.80 104
PPM 147174     04:05:02.0 +03:53:30  8.1  0.88 104
PPM 147186     04:05:53.1 +04:50:29  8.7  0.10 104
10VX224        04:05:57.2 +04:44:23 14.4       105
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 10VX224, (2019/01/08 12:31UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 14.05 115
Menkar         03:02:16.8 +04:05:21  2.5 15.63  89
40 Tau         04:03:44.6 +05:26:08  5.2  0.80 104
PPM 147174     04:04:02.0 +03:50:26  8.1  0.88 104
PPM 147186     04:04:52.8 +04:47:26  8.7  0.10 104
10VX224        04:04:56.8 +04:41:21 14.4       104
Positions are for J2000

Event circumstances last updated at 2018/06/11 19:31:12 UT

Marc W. Buie, Southwest Research Institute

RECON