RECON: TNO occultation with 14OJ394

Event between 14OJ394 and star GA0640:38065071 with event index number of 298859

Geocentric closest approach at 2020/08/03 14:51:22 UTC

J2000 position of star is 19:46:38.5 -24:37:00
Equinox of date position of star is 19:47:52.7 -24:33:55
Stellar brightness G=16.7, use SENSEUP=128
Star is 17 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=26.9

TNO is 48.7 AU from the Sun and 47.8 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 102 seconds.
The 1-sigma cross-track error in the shadow position is 2477 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=552.1 km assuming a 5% albedo -- 2.5 sec chord
Diameter=225.4 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 14OJ394, (2020/08/03 14:51UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:47.1 -29:30:46  1.2 42.51  28
38Zet Sgr      19:03:55.2 -29:50:56  2.7 11.10  28
PPM 270417     19:55:31.6 -23:53:18  6.1  1.87  15
PPM 270252     19:47:40.2 -24:49:37  8.2  0.27  17
PPM 270271     19:48:34.8 -24:21:33  9.2  0.26  17
14OJ394        19:47:53.0 -24:33:54 16.7        17
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 14OJ394, (2020/08/03 14:51UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:23  1.2 42.51  28
38Zet Sgr      19:02:36.7 -29:52:49  2.7 11.10  28
PPM 270417     19:54:17.6 -23:56:36  6.1  1.87  15
PPM 270252     19:46:25.5 -24:52:42  8.2  0.27  17
PPM 270271     19:47:20.3 -24:24:40  9.2  0.26  17
14OJ394        19:46:38.5 -24:37:00 16.7        17
Positions are for J2000

Event circumstances last updated at 2020/06/25 21:42:10 UT

Marc W. Buie, Southwest Research Institute

RECON