RECON: TNO occultation with 14UD241

Event between 14UD241 and star GA0920:00115731 with event index number of 1948776

Geocentric closest approach at 2021/06/20 16:15:47 UTC

J2000 position of star is 01:18:53.5 +03:07:52
Equinox of date position of star is 01:19:59.8 +03:14:35
Stellar brightness G=14.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 167 degrees from the moon. Moon is 77% illuminated.
TNO apparent brightness V=23.8

TNO is 42.3 AU from the Sun and 42.6 AU from the Earth.
The TNO is moving 14.7 km/sec on the sky relative to the star, or, 1.7 arcsec/hr.
The 1-sigma error in the time of the event is 246 seconds.
The 1-sigma cross-track error in the shadow position is 3093 km.

The TNO has an absolute magnitude Hv=7.4
Diameter=203.2 km assuming a 5% albedo -- 13.8 sec chord
Diameter=83.0 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 14UD241, (2021/06/20 16:16UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:49.9 -29:30:29  1.2 47.05 120
68Omi Cet      02:20:26.0 -02:52:52  2.0 16.30 167
89 Psc         01:18:54.5 +03:43:37  5.2  0.55 167
PPM 144477     01:20:31.1 +03:24:07  8.4  0.20 167
14UD241        01:20:00.1 +03:14:37 14.7       167
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 14UD241, (2021/06/20 16:16UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 47.05 120
68Omi Cet      02:19:20.8 -02:58:45  2.0 16.30 167
89 Psc         01:17:47.9 +03:36:51  5.2  0.55 167
PPM 144477     01:19:24.5 +03:17:22  8.4  0.20 167
14UD241        01:18:53.5 +03:07:52 14.7       167
Positions are for J2000

Event circumstances last updated at 2021/05/20 01:10:28 UT

Marc W. Buie, Southwest Research Institute

RECON