RECON: TNO occultation with 03UY292

Event between 03UY292 and star UC4-587-043038 with event index number of 120805

Geocentric closest approach at 2017/04/12 10:20:19 UTC

J2000 position of star is 08:37:48.4 +27:23:41
Equinox of date position of star is 08:38:50.7 +27:20:00
Stellar brightness R=13.5, use SENSEUP=32
Star is 90 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=23.3

TNO is 19.1 AU from the Sun and 18.9 AU from the Earth.
The TNO is moving 4.5 km/sec on the sky relative to the star, or, 1.2 arcsec/hr.
The 1-sigma error in the time of the event is 154 seconds.
The 1-sigma cross-track error in the shadow position is 684 km.

The TNO has an absolute magnitude Hv=10.2
Diameter=54.5 km assuming a 5% albedo -- 12.2 sec chord
Diameter=22.2 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 03UY292, (2017/04/12 10:20UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:22.2 +27:58:59  1.1 11.63 102
48Iot Cnc      08:47:44.3 +28:41:44  4.0  2.39  89
PPM 098886     08:39:10.1 +25:59:12  8.2  1.35  90
PPM 098859     08:37:46.3 +27:05:04  9.7  0.34  91
03UY292        08:38:50.8 +27:20:00 13.5        90
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 03UY292, (2017/04/12 10:20UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 11.63 102
48Iot Cnc      08:46:41.8 +28:45:35  4.0  2.39  89
PPM 098886     08:38:08.3 +26:02:53  8.2  1.35  90
PPM 098859     08:36:44.1 +27:08:43  9.7  0.34  91
03UY292        08:37:48.4 +27:23:41 13.5        90
Positions are for J2000

Event circumstances last updated at 2017/04/07 16:38:06 UT

Marc W. Buie, Southwest Research Institute

RECON