RECON: TNO occultation with 14KF113

Event between 14KF113 and star GA0960:04671345 with event index number of 1551473

Geocentric closest approach at 2021/07/07 14:31:58 UTC

J2000 position of star is 16:57:21.6 +06:37:11
Equinox of date position of star is 16:58:23.2 +06:35:18
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 150 degrees from the moon. Moon is 6% illuminated.
TNO apparent brightness V=22.5

TNO is 35.4 AU from the Sun and 34.6 AU from the Earth.
The TNO is moving 20.6 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 179 seconds.
The 1-sigma cross-track error in the shadow position is 1460 km.

The TNO has an absolute magnitude Hv=6.9
Diameter=251.2 km assuming a 5% albedo -- 12.2 sec chord
Diameter=102.6 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 14KF113, (2021/07/07 14:32UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:43.8 -26:28:40  0.9 33.74 171
Rasalhague     17:35:56.0 +12:32:45  2.1 11.00 143
47 Her         16:51:22.1 +07:12:44  5.6  1.86 149
PPM 163306     16:58:23.4 +06:10:45  8.2  0.41 150
PPM 163304     16:58:16.4 +06:33:46 10.0  0.04 150
14KF113        16:58:24.6 +06:35:15 15.7       150
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, (2021/07/07 14:32UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 33.74 171
Rasalhague     17:34:56.3 +12:33:31  2.1 11.00 143
47 Her         16:50:19.5 +07:14:53  5.6  1.86 149
PPM 163306     16:57:20.2 +06:12:41  8.2  0.41 150
PPM 163304     16:57:13.5 +06:35:41 10.0  0.04 150
14KF113        16:57:21.6 +06:37:11 15.7       150
Positions are for J2000

Event circumstances last updated at 2021/01/23 20:30:30 UT

Marc W. Buie, Southwest Research Institute

RECON