RECON: TNO occultation with 02PG153

Event between 02PG153 and star UC4-398-135967 with event index number of 120770

Geocentric closest approach at 2017/08/29 17:13:37 UTC

J2000 position of star is 22:08:59.2 -10:32:53
Equinox of date position of star is 22:09:54.6 -10:27:45
Stellar brightness R=14.5, use SENSEUP=128
Star is 80 degrees from the moon. Moon is 54% illuminated.
TNO apparent brightness V=25.3

TNO is 41.6 AU from the Sun and 40.6 AU from the Earth.
The TNO is moving 24.6 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 60 seconds.
The 1-sigma cross-track error in the shadow position is 1473 km.

The TNO has an absolute magnitude Hv=9.1
Diameter=90.8 km assuming a 5% albedo -- 3.7 sec chord
Diameter=37.1 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 02PG153, (2017/08/29 17:14UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:37.4 -29:31:42  1.2 22.20  86
PPM 206180     22:17:48.4 -08:57:05  5.8  2.46  82
PPM 239819     22:08:14.5 -10:21:36  6.8  0.43  79
PPM 239864     22:10:04.4 -10:26:19  8.7  0.04  80
02PG153        22:09:55.5 -10:27:39 14.5        80
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 02PG153, (2017/08/29 17:14UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 22.20  86
PPM 206180     22:16:52.5 -09:02:24  5.8  2.46  82
PPM 239819     22:07:18.1 -10:26:49  6.8  0.43  79
PPM 239864     22:09:08.1 -10:31:32  8.7  0.04  80
02PG153        22:08:59.2 -10:32:53 14.5        80
Positions are for J2000

Event circumstances last updated at 2017/05/13 17:32:35 UT

Marc W. Buie, Southwest Research Institute

RECON