RECON: TNO occultation with 363401

Event between (363401) 03LB7 and star UC4-332-084715 with event index number of 336067

Geocentric closest approach at 2019/06/27 19:44:40 UTC

J2000 position of star is 16:54:57.5 -23:38:03
Equinox of date position of star is 16:56:06.3 -23:39:49
Stellar brightness R=15.1, use SENSEUP=128
Star is 138 degrees from the moon. Moon is 27% illuminated.
TNO apparent brightness V=22.9

TNO is 41.3 AU from the Sun and 40.4 AU from the Earth.
The TNO is moving 22.6 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 680 seconds.
The 1-sigma cross-track error in the shadow position is 4685 km.

The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 12.2 sec chord
Diameter=112.4 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 363401, (2019/06/27 19:45UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.3 -26:28:25  0.9  6.43 142
23Tau Sco      16:37:05.9 -28:15:17  2.8  6.27 140
26 Oph         17:01:21.3 -25:01:02  5.8  1.80 136
PPM 266128     16:56:01.6 -23:32:34  6.9  0.12 138
363401         16:56:08.4 -23:39:52 15.1       137
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 363401, (2019/06/27 19:45UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  6.43 142
23Tau Sco      16:35:53.0 -28:12:58  2.8  6.27 140
26 Oph         17:00:09.6 -24:59:22  5.8  1.80 136
PPM 266128     16:54:50.8 -23:30:45  6.9  0.12 138
363401         16:54:57.5 -23:38:03 15.1       138
Positions are for J2000

Event circumstances last updated at 2018/11/28 22:06:50 UT

Marc W. Buie, Southwest Research Institute

RECON