RECON: TNO occultation with 14JT80

Event between 14JT80 and star GA0800:06466693 with event index number of 1045670

Geocentric closest approach at 2019/05/05 21:47:14 UTC

J2000 position of star is 17:35:30.0 -09:57:32
Equinox of date position of star is 17:36:33.3 -09:58:12
Stellar brightness G=17.0, use SENSEUP=128
Star is 152 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=22.5

TNO is 32.0 AU from the Sun and 31.2 AU from the Earth.
The TNO is moving 17.4 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 364 seconds.
The 1-sigma cross-track error in the shadow position is 3316 km.

The TNO has an absolute magnitude Hv=7.4
Diameter=203.2 km assuming a 5% albedo -- 11.7 sec chord
Diameter=83.0 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14JT80, (2019/05/05 21:47UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.8 -26:28:24  0.9 22.70 164
35Eta Oph      17:11:29.3 -15:44:51  2.6  8.41 159
PPM 233365     17:39:14.0 -10:56:11  5.7  1.17 151
PPM 200885     17:39:04.7 -09:02:26  8.4  1.12 151
PPM 200848     17:37:18.0 -09:58:06  9.4  0.18 152
14JT80         17:36:34.0 -09:58:13 17.0       151
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 14JT80, (2019/05/05 21:47UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 22.70 164
35Eta Oph      17:10:22.7 -15:43:29  2.6  8.41 159
PPM 233365     17:38:09.5 -10:55:35  5.7  1.17 151
PPM 200885     17:38:01.1 -09:01:50  8.4  1.12 151
PPM 200848     17:36:14.0 -09:57:27  9.4  0.18 152
14JT80         17:35:30.0 -09:57:32 17.0       152
Positions are for J2000

Event circumstances last updated at 2019/02/12 07:37:17 UT

Marc W. Buie, Southwest Research Institute

RECON