RECON: TNO occultation with 05EB299

Event between 05EB299 and star GA0820:04319049 with event index number of 293849

Geocentric closest approach at 2019/04/01 17:57:31 UTC

J2000 position of star is 13:06:26.1 -07:25:08
Equinox of date position of star is 13:07:25.8 -07:31:15
Stellar brightness G=14.3, use SENSEUP=64
Star is 133 degrees from the moon. Moon is 12% illuminated.
TNO apparent brightness V=22.6

TNO is 26.6 AU from the Sun and 25.6 AU from the Earth.
The TNO is moving 22.6 km/sec on the sky relative to the star, or, 4.4 arcsec/hr.
The 1-sigma error in the time of the event is 56 seconds.
The 1-sigma cross-track error in the shadow position is 1043 km.

The TNO has an absolute magnitude Hv=8.4
Diameter=126.5 km assuming a 5% albedo -- 5.6 sec chord
Diameter=51.6 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 05EB299, (2019/04/01 17:58UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:12.6 -11:15:40  1.0  5.95 127
PPM 196204     13:09:32.8 -09:05:13  5.5  1.65 132
PPM 196200     13:09:25.7 -07:24:37  8.4  0.51 133
PPM 196165     13:07:09.5 -07:29:00  9.6  0.08 133
05EB299        13:07:26.2 -07:31:18 14.3       133
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 05EB299, (2019/04/01 17:58UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0  5.95 127
PPM 196204     13:08:32.4 -08:59:05  5.5  1.65 132
PPM 196200     13:08:25.5 -07:18:29  8.4  0.51 133
PPM 196165     13:06:09.4 -07:22:50  9.6  0.08 133
05EB299        13:06:26.1 -07:25:08 14.3       133
Positions are for J2000

Event circumstances last updated at 2019/02/12 07:06:25 UT

Marc W. Buie, Southwest Research Institute

RECON