RECON: TNO occultation with 10WM75

Event between 10WM75 and star GA0960:01003477 with event index number of 1567559

Geocentric closest approach at 2020/11/18 17:05:50 UTC

J2000 position of star is 05:52:04.4 +06:57:47
Equinox of date position of star is 05:53:09.8 +06:58:00
Stellar brightness G=15.4, use SENSEUP=128
Star is 155 degrees from the moon. Moon is 16% illuminated.
TNO apparent brightness V=26.4

TNO is 43.5 AU from the Sun and 42.6 AU from the Earth.
The TNO is moving 22.0 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 251 seconds.
The 1-sigma cross-track error in the shadow position is 2324 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=380.2 km assuming a 5% albedo -- 2.7 sec chord
Diameter=155.2 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 10WM75, (2020/11/18 17:06UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:18.2 +07:24:33  0.4  0.89 156
Bellatrix      05:26:15.1 +06:22:01  1.6  6.72 150
52 Ori         05:49:07.5 +06:27:36  5.5  1.13 154
PPM 149614     05:54:58.3 +06:32:59  8.5  0.61 155
PPM 149564     05:52:45.7 +06:49:41  9.7  0.18 155
10WM75         05:53:12.0 +06:58:00 15.4       155
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 10WM75, (2020/11/18 17:06UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  0.89 156
Bellatrix      05:25:07.8 +06:20:58  1.6  6.72 150
52 Ori         05:48:00.2 +06:27:15  5.5  1.13 154
PPM 149614     05:53:50.9 +06:32:49  8.5  0.61 155
PPM 149564     05:51:38.1 +06:49:27  9.7  0.18 155
10WM75         05:52:04.4 +06:57:47 15.4       155
Positions are for J2000

Event circumstances last updated at 2020/03/10 22:26:07 UT

Marc W. Buie, Southwest Research Institute

RECON