RECON: TNO occultation with 01FM194

Event between 01FM194 and star UC4-462-051624 with event index number of 54540

Geocentric closest approach at 2017/03/31 03:22:18 UTC

J2000 position of star is 14:14:16.9 +02:18:26
Equinox of date position of star is 14:15:06.6 +02:13:54
Stellar brightness R=16.2
Star is 157 degrees from the moon. Moon is 13% illuminated.
TNO apparent brightness V=23.0

TNO is 34.5 AU from the Sun and 33.6 AU from the Earth.
The TNO is moving 23.1 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 241 seconds.
The 1-sigma cross-track error in the shadow position is 3240 km.

The TNO has an absolute magnitude Hv=7.6
Diameter=181.1 km assuming a 5% albedo -- 7.9 sec chord
Diameter=74.0 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 01FM194, (2017/03/31 03:22UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:16:27.0 +19:05:38  0.0 16.87 144
Spica          13:26:06.2 -11:15:03  1.0 18.18 151
PPM 160430     14:13:08.3 +02:19:44  4.7  0.51 156
PPM 160477     14:15:55.7 +02:43:00  8.3  0.53 157
PPM 160467     14:15:23.3 +02:09:42 10.0  0.09 157
01FM194        14:15:09.4 +02:13:38 16.2       157
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.

Event circumstances last updated at 2016/04/28 17:03:58 UT

RECON