RECON: TNO occultation with 12PU45

Event between 12PU45 and star GA0800:21540227 with event index number of 1581651

Geocentric closest approach at 2020/11/30 13:34:52 UTC

J2000 position of star is 21:20:23.3 -09:26:30
Equinox of date position of star is 21:21:30.0 -09:21:10
Stellar brightness G=16.9, use SENSEUP=128
Star is 111 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=25.2

TNO is 31.2 AU from the Sun and 31.5 AU from the Earth.
The TNO is moving 16.5 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 97 seconds.
The 1-sigma cross-track error in the shadow position is 1148 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=236.6 km assuming a 5% albedo -- 3.6 sec chord
Diameter=96.6 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 12PU45, (2020/11/30 13:35UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:48.1 -29:30:39  1.2 30.40  96
19 Aqr         21:26:20.4 -09:39:31  6.0  1.23 110
PPM 205083     21:21:57.2 -09:03:44  7.6  0.31 111
12PU45         21:21:30.5 -09:21:08 16.9       111
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 12PU45, (2020/11/30 13:35UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 30.40  96
19 Aqr         21:25:13.1 -09:44:59  6.0  1.23 110
PPM 205083     21:20:50.1 -09:09:07  7.6  0.31 111
12PU45         21:20:23.3 -09:26:30 16.9       111
Positions are for J2000

Event circumstances last updated at 2020/09/26 20:32:09 UT

Marc W. Buie, Southwest Research Institute

RECON