RECON: TNO occultation with 13JQ64

Event between 13JQ64 and star GA0720:05965816 with event index number of 359052

Geocentric closest approach at 2019/09/02 19:07:18 UTC

J2000 position of star is 16:13:21.6 -16:52:20
Equinox of date position of star is 16:14:27.2 -16:55:11
Stellar brightness G=12.5, use SENSEUP=16
Star is 37 degrees from the moon. Moon is 16% illuminated.
TNO apparent brightness V=24.2

TNO is 59.8 AU from the Sun and 59.8 AU from the Earth.
The TNO is moving 6.8 km/sec on the sky relative to the star, or, 0.6 arcsec/hr.
The 1-sigma error in the time of the event is 2626 seconds.
The 1-sigma cross-track error in the shadow position is 5448 km.

The TNO has an absolute magnitude Hv=6.3
Diameter=329.6 km assuming a 5% albedo -- 48.7 sec chord
Diameter=134.6 km assuming a 30% albedo -- 19.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 13JQ64, (2019/09/02 19:07UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:37.0 -26:28:26  0.9 10.26  43
8Bet1Sco       16:06:35.0 -19:51:28  2.6  3.48  36
PPM 231413     16:15:47.5 -18:35:05  6.1  1.69  38
PPM 231403     16:15:23.8 -16:35:21  8.3  0.40  37
PPM 231357     16:13:48.5 -16:48:16 10.0  0.20  37
13JQ64         16:14:29.2 -16:55:16 12.5        37
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 13JQ64, (2019/09/02 19:07UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 10.26  43
8Bet1Sco       16:05:26.2 -19:48:20  2.6  3.48  36
PPM 231413     16:14:39.1 -18:32:11  6.1  1.69  38
PPM 231403     16:14:16.3 -16:32:27  8.3  0.40  37
PPM 231357     16:12:40.9 -16:45:19 10.0  0.20  37
13JQ64         16:13:21.6 -16:52:20 12.5        37
Positions are for J2000

Event circumstances last updated at 2019/01/28 21:41:52 UT

Marc W. Buie, Southwest Research Institute

RECON