RECON: TNO occultation with 469333

Event between (469333) 00PE30 and star GA0720:33576188 with event index number of 209018

Geocentric closest approach at 2019/08/09 00:14:02 UTC

J2000 position of star is 22:38:50.5 -17:56:56
Equinox of date position of star is 22:39:53.2 -17:50:50
Stellar brightness G=15.8, use SENSEUP=128
Star is 93 degrees from the moon. Moon is 64% illuminated.
TNO apparent brightness V=22.0

TNO is 41.0 AU from the Sun and 40.1 AU from the Earth.
The TNO is moving 23.3 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 133 seconds.
The 1-sigma cross-track error in the shadow position is 1799 km.

The TNO has an absolute magnitude Hv=5.9
Diameter=398.1 km assuming a 5% albedo -- 17.1 sec chord
Diameter=162.5 km assuming a 30% albedo -- 7.0 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 469333, (2019/08/09 00:14UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:43.8 -29:31:05  1.2 12.44  93
66 Aqr         22:44:38.4 -18:43:39  4.1  1.43  94
PPM 240509     22:37:40.1 -18:10:10  8.1  0.62  92
PPM 240558     22:40:10.3 -17:41:47  9.0  0.16  93
PPM 240556     22:40:05.3 -17:54:06 10.1  0.07  93
469333         22:39:53.7 -17:50:47 15.8        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 469333, (2019/08/09 00:14UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 12.44  93
66 Aqr         22:43:35.2 -18:49:50  4.1  1.43  94
PPM 240509     22:36:36.8 -18:16:17  8.1  0.62  92
PPM 240558     22:39:07.2 -17:47:56  9.0  0.16  93
PPM 240556     22:39:02.1 -18:00:15 10.1  0.07  93
469333         22:38:50.5 -17:56:56 15.8        93
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:31:15 UT

Marc W. Buie, Southwest Research Institute

RECON