RECON: TNO occultation with 00FV53

Event between 00FV53 and star UC4-397-061161 with event index number of 76392

Geocentric closest approach at 2017/04/25 00:37:57 UTC

J2000 position of star is 16:00:16.3 -10:46:24
Equinox of date position of star is 16:01:13.4 -10:49:17
Stellar brightness R=16.4, use SENSEUP=128
Star is 134 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=23.6

TNO is 34.1 AU from the Sun and 33.2 AU from the Earth.
The TNO is moving 21.6 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 429 seconds.
The 1-sigma cross-track error in the shadow position is 5535 km.

The TNO has an absolute magnitude Hv=8.2
Diameter=140.0 km assuming a 5% albedo -- 6.5 sec chord
Diameter=57.1 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 00FV53, (2017/04/25 00:38UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:28.3 -26:28:08  0.9 17.10 124
1Del Oph       16:15:15.3 -03:44:16  2.7  7.89 131
50 Lib         16:01:43.8 -08:27:33  5.5  2.37 134
PPM 230996     15:58:05.0 -10:56:13  7.9  0.78 135
PPM 231052     16:00:38.2 -10:50:49  9.6  0.15 134
00FV53         16:01:13.4 -10:49:17 16.4       134
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 00FV53, (2017/04/25 00:38UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:55  0.9 17.10 124
1Del Oph       16:14:20.7 -03:41:42  2.7  7.89 131
50 Lib         16:00:47.6 -08:24:41  5.5  2.37 134
PPM 230996     15:57:07.9 -10:53:17  7.9  0.78 135
PPM 231052     15:59:41.2 -10:47:56  9.6  0.15 134
00FV53         16:00:16.3 -10:46:24 16.4       134
Positions are for J2000

Event circumstances last updated at 2017/04/24 16:03:26 UT

Marc W. Buie, Southwest Research Institute

RECON