RECON: TNO occultation with 14JN80

Event between 14JN80 and star GA0820:05643419 with event index number of 214216

Geocentric closest approach at 2019/09/28 09:23:05 UTC

J2000 position of star is 17:07:22.7 -07:21:23
Equinox of date position of star is 17:08:22.5 -07:22:46
Stellar brightness G=15.7, use SENSEUP=128
Star is 76 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.3

TNO is 37.8 AU from the Sun and 38.1 AU from the Earth.
The TNO is moving 16.9 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 311 seconds.
The 1-sigma cross-track error in the shadow position is 4018 km.

The TNO has an absolute magnitude Hv=6.4
Diameter=319.2 km assuming a 5% albedo -- 18.9 sec chord
Diameter=130.3 km assuming a 30% albedo -- 7.7 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 14JN80, (2019/09/28 09:23UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:37.3 -26:28:27  0.9 21.10  71
13Zet Oph      16:38:14.9 -10:36:20  2.6  8.12  69
PPM 200511     17:17:46.3 -06:15:55  6.0  2.57  78
PPM 200309     17:05:35.1 -07:43:50  8.5  0.79  75
PPM 200361     17:08:29.2 -07:27:42  9.5  0.08  76
14JN80         17:08:26.7 -07:22:52 15.7        76
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 14JN80, (2019/09/28 09:23UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.10  71
13Zet Oph      16:37:09.6 -10:34:01  2.6  8.12  69
PPM 200511     17:16:42.8 -06:14:42  6.0  2.57  78
PPM 200309     17:04:30.9 -07:42:16  8.5  0.79  75
PPM 200361     17:07:25.1 -07:26:12  9.5  0.08  76
14JN80         17:07:22.7 -07:21:23 15.7        76
Positions are for J2000

Event circumstances last updated at 2018/06/12 07:45:44 UT

Marc W. Buie, Southwest Research Institute

RECON