RECON: TNO occultation with 14KF113

Event between 14KF113 and star GA0960:04694324 with event index number of 1551470

Geocentric closest approach at 2021/06/08 19:49:56 UTC

J2000 position of star is 16:59:50.7 +06:40:09
Equinox of date position of star is 17:00:52.3 +06:38:20
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 149 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=22.4

TNO is 35.4 AU from the Sun and 34.5 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 154 seconds.
The 1-sigma cross-track error in the shadow position is 1318 km.

The TNO has an absolute magnitude Hv=6.9
Diameter=251.2 km assuming a 5% albedo -- 10.5 sec chord
Diameter=102.6 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 14KF113, (2021/06/08 19:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:43.5 -26:28:40  0.9 33.91 169
Rasalhague     17:35:55.8 +12:32:45  2.1 10.46 140
47 Her         16:51:21.9 +07:12:45  5.6  2.43 150
PPM 163377     17:01:32.2 +06:33:11  6.7  0.18 149
PPM 163346     17:00:12.4 +06:34:23 10.2  0.18 150
14KF113        17:00:53.4 +06:38:18 15.4       149
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 14KF113, (2021/06/08 19:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 33.91 169
Rasalhague     17:34:56.3 +12:33:31  2.1 10.46 140
47 Her         16:50:19.5 +07:14:53  5.6  2.43 150
PPM 163377     17:00:29.5 +06:35:01  6.7  0.18 149
PPM 163346     16:59:09.7 +06:36:14 10.2  0.18 150
14KF113        16:59:50.7 +06:40:09 15.4       149
Positions are for J2000

Event circumstances last updated at 2021/01/22 20:49:33 UT

Marc W. Buie, Southwest Research Institute

RECON