RECON: TNO occultation with 15788

Event between (15788) 93SB and star GA1120:00496833 with event index number of 247995

Geocentric closest approach at 2019/03/03 10:42:52 UTC

J2000 position of star is 03:52:40.0 +22:02:46
Equinox of date position of star is 03:53:47.6 +22:06:07
Stellar brightness G=13.1, use SENSEUP=32
Star is 113 degrees from the moon. Moon is 9% illuminated.
TNO apparent brightness V=22.4

TNO is 26.9 AU from the Sun and 27.0 AU from the Earth.
The TNO is moving 12.2 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 1141 seconds.
The 1-sigma cross-track error in the shadow position is 3641 km.

The TNO has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 13.0 sec chord
Diameter=64.7 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 15788, (2019/03/03 10:43UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.4 +16:32:47  0.8 11.61 122
44Zet Per      03:55:20.5 +31:56:20  2.8  9.84 115
PPM 092958     03:51:02.9 +22:18:04  5.9  0.67 113
PPM 092992     03:52:44.4 +22:05:16  8.0  0.25 113
15788          03:53:47.8 +22:06:08 13.1       113
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 15788, (2019/03/03 10:43UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 11.61 122
44Zet Per      03:54:07.9 +31:53:01  2.8  9.84 115
PPM 092958     03:49:55.1 +22:14:39  5.9  0.67 113
PPM 092992     03:51:36.7 +22:01:53  8.0  0.25 113
15788          03:52:40.0 +22:02:46 13.1       113
Positions are for J2000

Event circumstances last updated at 2019/02/12 06:25:49 UT

Marc W. Buie, Southwest Research Institute

RECON