RECON: TNO occultation with 13JX67

Event between 13JX67 and star GA0720:06429347 with event index number of 2061475

Geocentric closest approach at 2022/07/01 00:54:13 UTC

J2000 position of star is 16:41:31.6 -16:18:05
Equinox of date position of star is 16:42:48.0 -16:20:33
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 130 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=23.0

TNO is 42.6 AU from the Sun and 41.7 AU from the Earth.
The TNO is moving 21.4 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 166 seconds.
The 1-sigma cross-track error in the shadow position is 1866 km.

The TNO has an absolute magnitude Hv=6.7
Diameter=281.8 km assuming a 5% albedo -- 13.2 sec chord
Diameter=115.1 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 13JX67, (2022/07/01 00:54UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.4 -26:28:48  0.9 10.51 130
13Zet Oph      16:38:24.0 -10:36:39  2.6  5.83 127
PPM 232030     16:42:52.6 -17:47:02  5.0  1.44 130
PPM 231984     16:41:06.2 -16:39:20  7.9  0.52 130
PPM 232036     16:43:07.0 -16:24:19  8.6  0.09 130
13JX67         16:42:49.1 -16:20:35 16.3       130
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 13JX67, (2022/07/01 00:54UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 10.51 130
13Zet Oph      16:37:09.6 -10:34:01  2.6  5.83 127
PPM 232030     16:41:34.4 -17:44:32  5.0  1.44 130
PPM 231984     16:39:48.6 -16:36:47  7.9  0.52 130
PPM 232036     16:41:49.5 -16:21:49  8.6  0.09 130
13JX67         16:41:31.6 -16:18:05 16.3       130
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:04:53 UT

Marc W. Buie, Southwest Research Institute

RECON