RECON: TNO occultation with 00WO183

Event between 00WO183 and star GA1120:01601722 with event index number of 253493

Geocentric closest approach at 2020/04/09 14:59:51 UTC

J2000 position of star is 05:56:17.3 +22:13:21
Equinox of date position of star is 05:57:30.4 +22:13:26
Stellar brightness G=15.8, use SENSEUP=128
Star is 133 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=26.4

TNO is 42.5 AU from the Sun and 42.8 AU from the Earth.
The TNO is moving 14.7 km/sec on the sky relative to the star, or, 1.7 arcsec/hr.
The 1-sigma error in the time of the event is 869 seconds.
The 1-sigma cross-track error in the shadow position is 3940 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=195.9 km assuming a 5% albedo -- 4.1 sec chord
Diameter=80.0 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 00WO183, (2020/04/09 15:00UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:16.2 +07:24:33  0.4 14.82 132
Alnath         05:27:34.5 +28:37:22  1.6  9.30 138
PPM 095249     06:02:55.1 +22:23:59  6.2  1.26 131
PPM 095201     06:00:56.0 +22:28:15  7.7  0.83 132
PPM 095100     05:57:15.3 +22:08:30 10.0  0.10 133
00WO183        05:57:30.7 +22:13:26 15.8       132
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 00WO183, (2020/04/09 15:00UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 14.82 132
Alnath         05:26:17.5 +28:36:23  1.6  9.30 138
PPM 095249     06:01:41.6 +22:24:04  6.2  1.26 131
PPM 095201     05:59:42.4 +22:28:15  7.7  0.83 132
PPM 095100     05:56:01.9 +22:08:24 10.0  0.10 133
00WO183        05:56:17.3 +22:13:21 15.8       133
Positions are for J2000

Event circumstances last updated at 2020/03/06 21:34:45 UT

Marc W. Buie, Southwest Research Institute

RECON