RECON: TNO occultation with 00FX53

Event between 00FX53 and star UC4-411-056353 with event index number of 115676

Geocentric closest approach at 2018/05/07 15:21:55 UTC

J2000 position of star is 13:43:38.0 -07:59:04
Equinox of date position of star is 13:44:33.5 -08:04:20
Stellar brightness R=15.8, use SENSEUP=128
Star is 105 degrees from the moon. Moon is 54% illuminated.
TNO apparent brightness V=23.8

TNO is 37.9 AU from the Sun and 36.9 AU from the Earth.
The TNO is moving 22.8 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 186 seconds.
The 1-sigma cross-track error in the shadow position is 2489 km.

The TNO has an absolute magnitude Hv=8.0
Diameter=149.3 km assuming a 5% albedo -- 6.6 sec chord
Diameter=60.9 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 00FX53, (2018/05/07 15:22UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:09.7 -11:15:24  1.0  5.55 108
82 Vir         13:42:34.7 -08:47:42  5.0  0.88 105
PPM 196840     13:45:54.7 -07:43:33  7.3  0.48 105
PPM 196815     13:44:43.1 -08:06:25  9.1  0.04 105
00FX53         13:44:35.9 -08:04:34 15.8       105
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 00FX53, (2018/05/07 15:22UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0  5.55 108
82 Vir         13:41:36.7 -08:42:10  5.0  0.88 105
PPM 196840     13:44:56.8 -07:38:04  7.3  0.48 105
PPM 196815     13:43:45.2 -08:00:54  9.1  0.04 105
00FX53         13:43:38.0 -07:59:04 15.8       105
Positions are for J2000

Event circumstances last updated at 2017/08/02 16:51:53 UT

Marc W. Buie, Southwest Research Institute

RECON