RECON: TNO occultation with 96KV1

Event between 96KV1 and star UC4-328-187594 with event index number of 209803

Geocentric closest approach at 2019/08/20 08:51:54 UTC

J2000 position of star is 19:12:49.3 -24:31:30
Equinox of date position of star is 19:13:53.8 -24:29:38
Stellar brightness R=12.8, use SENSEUP=32
Star is 93 degrees from the moon. Moon is 80% illuminated.
TNO apparent brightness V=23.4

TNO is 40.2 AU from the Sun and 39.4 AU from the Earth.
The TNO is moving 17.3 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 667 seconds.
The 1-sigma cross-track error in the shadow position is 3363 km.

The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 12.1 sec chord
Diameter=85.3 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 96KV1, (2019/08/20 08:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.9 -26:28:26  0.9 36.78 129
Nunki          18:56:28.9 -26:16:14  2.0  4.34  97
PPM 269532     19:16:44.9 -24:08:39  6.4  0.71  93
PPM 269421     19:12:11.4 -24:09:05  7.6  0.54  94
PPM 269487     19:14:46.9 -24:29:23  9.3  0.17  93
96KV1          19:14:01.0 -24:29:26 12.8        93
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 96KV1, (2019/08/20 08:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 36.78 129
Nunki          18:55:15.9 -26:17:49  2.0  4.34  97
PPM 269532     19:15:33.4 -24:10:48  6.4  0.71  93
PPM 269421     19:10:59.9 -24:11:06  7.6  0.54  94
PPM 269487     19:13:35.2 -24:31:28  9.3  0.17  93
96KV1          19:12:49.3 -24:31:30 12.8        93
Positions are for J2000

Event circumstances last updated at 2017/09/01 17:02:16 UT

Marc W. Buie, Southwest Research Institute

RECON