RECON: TNO occultation with 00OU69

Event between 00OU69 and star GA0720:33492642 with event index number of 186124

Geocentric closest approach at 2019/05/03 11:18:40 UTC

J2000 position of star is 22:01:07.3 -16:28:22
Equinox of date position of star is 22:02:08.9 -16:22:54
Stellar brightness G=16.2, use SENSEUP=128
Star is 58 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=22.6

TNO is 41.2 AU from the Sun and 41.4 AU from the Earth.
The TNO is moving 12.6 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 826 seconds.
The 1-sigma cross-track error in the shadow position is 4170 km.

The TNO has an absolute magnitude Hv=6.3
Diameter=335.7 km assuming a 5% albedo -- 26.7 sec chord
Diameter=137.1 km assuming a 30% albedo -- 10.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 00OU69, (2019/05/03 11:19UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:42.9 -29:31:10  1.2 18.46  52
29 Aqr         22:03:29.8 -16:52:14  6.1  0.58  58
PPM 239694     22:02:53.5 -16:41:02  8.5  0.35  58
PPM 239661     22:01:34.8 -16:32:33  9.5  0.22  59
00OU69         22:02:10.5 -16:22:45 16.2        58
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 00OU69, (2019/05/03 11:19UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 18.46  52
29 Aqr         22:02:26.5 -16:57:52  6.1  0.58  58
PPM 239694     22:01:50.3 -16:46:40  8.5  0.35  58
PPM 239661     22:00:31.5 -16:38:10  9.5  0.22  59
00OU69         22:01:07.3 -16:28:22 16.2        58
Positions are for J2000

Event circumstances last updated at 2018/11/04 22:27:58 UT

Marc W. Buie, Southwest Research Institute

RECON