RECON: TNO occultation with 14LV28

Event between 14LV28 and star UC4-347-185807 with event index number of 138972

Geocentric closest approach at 2017/07/24 21:36:02 UTC

J2000 position of star is 20:36:33.2 -20:42:13
Equinox of date position of star is 20:37:33.4 -20:38:33
Stellar brightness R=16.3, use SENSEUP=128
Star is 164 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=21.3

TNO is 36.9 AU from the Sun and 35.9 AU from the Earth.
The TNO is moving 23.6 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 288 seconds.
The 1-sigma cross-track error in the shadow position is 2640 km.

The TNO has an absolute magnitude Hv=5.7
Diameter=432.5 km assuming a 5% albedo -- 18.3 sec chord
Diameter=176.6 km assuming a 30% albedo -- 7.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 14LV28, (2017/07/24 21:36UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:37.0 -29:31:44  1.2 33.01 156
38Zet Sgr      19:03:43.6 -29:51:13  2.7 23.07 141
17 Cap         20:47:10.9 -21:26:57  5.9  2.38 165
PPM 271379     20:37:27.3 -20:31:26  7.5  0.12 164
14LV28         20:37:34.1 -20:38:30 16.3       164
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 14LV28, (2017/07/24 21:36UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 33.01 156
38Zet Sgr      19:02:36.7 -29:52:49  2.7 23.07 141
17 Cap         20:46:10.0 -21:30:51  5.9  2.38 165
PPM 271379     20:36:26.5 -20:35:08  7.5  0.12 164
14LV28         20:36:33.2 -20:42:13 16.3       164
Positions are for J2000

Event circumstances last updated at 2017/05/16 18:29:34 UT

Marc W. Buie, Southwest Research Institute

RECON