RECON: TNO occultation with 13VX30

Event between 13VX30 and star GA0860:00274282 with event index number of 1001586

Geocentric closest approach at 2020/11/11 18:33:35 UTC

J2000 position of star is 03:22:33.2 -02:08:01
Equinox of date position of star is 03:23:32.9 -02:03:52
Stellar brightness G=15.6, use SENSEUP=128
Star is 133 degrees from the moon. Moon is 17% illuminated.
TNO apparent brightness V=23.1

TNO is 27.6 AU from the Sun and 26.6 AU from the Earth.
The TNO is moving 24.8 km/sec on the sky relative to the star, or, 4.6 arcsec/hr.
The 1-sigma error in the time of the event is 300 seconds.
The 1-sigma cross-track error in the shadow position is 4411 km.

The TNO has an absolute magnitude Hv=8.7
Diameter=111.2 km assuming a 5% albedo -- 4.5 sec chord
Diameter=45.4 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is 1:1
 
 
 
 
 
 
 
 

Star training set for 13VX30, (2020/11/11 18:34UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.2 +16:32:59  0.8 25.99 112
Menkar         03:03:22.4 +04:10:13  2.5  8.02 137
95 Cet         03:19:26.6 -00:51:20  6.2  1.59 134
PPM 185670     03:21:52.9 -03:02:03  8.0  1.07 133
PPM 185720     03:24:36.0 -02:08:02  9.5  0.26 133
PPM 175297     03:23:54.6 -01:59:09 10.7  0.11 133
13VX30         03:23:36.5 -02:03:37 15.6       133
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 13VX30, (2020/11/11 18:34UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 25.99 112
Menkar         03:02:16.8 +04:05:21  2.5  8.02 137
95 Cet         03:18:22.7 -00:55:50  6.2  1.59 134
PPM 185670     03:20:49.9 -03:06:30  8.0  1.07 133
PPM 185720     03:23:32.6 -02:12:25  9.5  0.26 133
PPM 175297     03:22:51.2 -02:03:33 10.7  0.11 133
13VX30         03:22:33.2 -02:08:01 15.6       133
Positions are for J2000

Event circumstances last updated at 2019/09/01 22:26:33 UT

Marc W. Buie, Southwest Research Institute

RECON