RECON: TNO occultation with 00QA243

Event between 00QA243 and star GA0940:00067889 with event index number of 1005699

Geocentric closest approach at 2019/06/15 07:11:29 UTC

J2000 position of star is 00:44:04.0 +05:59:24
Equinox of date position of star is 00:45:04.3 +06:05:46
Stellar brightness G=15.4, use SENSEUP=128
Star is 133 degrees from the moon. Moon is 95% illuminated.
TNO apparent brightness V=24.0

TNO is 46.3 AU from the Sun and 46.7 AU from the Earth.
The TNO is moving 13.5 km/sec on the sky relative to the star, or, 1.4 arcsec/hr.
The 1-sigma error in the time of the event is 315 seconds.
The 1-sigma cross-track error in the shadow position is 2924 km.

The TNO has an absolute magnitude Hv=7.2
Diameter=217.8 km assuming a 5% albedo -- 16.1 sec chord
Diameter=88.9 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 00QA243, (2019/06/15 07:11UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:14:14.4 +15:17:30  2.8 11.91 128
96 G. Psc      00:49:24.3 +05:22:49  5.8  1.29 134
PPM 143866     00:47:06.2 +06:11:48  8.0  0.51 134
PPM 143818     00:44:31.7 +06:15:38  9.1  0.21 133
PPM 143832     00:45:40.2 +06:11:18 10.5  0.17 133
00QA243        00:45:04.4 +06:05:46 15.4       134
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 00QA243, (2019/06/15 07:11UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:13:14.2 +15:11:01  2.8 11.91 128
96 G. Psc      00:48:24.0 +05:16:28  5.8  1.29 134
PPM 143866     00:46:05.8 +06:05:26  8.0  0.51 134
PPM 143818     00:43:31.3 +06:09:15  9.1  0.21 133
PPM 143832     00:44:39.8 +06:04:56 10.5  0.17 133
00QA243        00:44:04.0 +05:59:24 15.4       133
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:16:00 UT

Marc W. Buie, Southwest Research Institute

RECON