RECON: TNO occultation with 14UT114

Event between 14UT114 and star UC4-633-017733 with event index number of 163323

Geocentric closest approach at 2018/09/10 13:44:14 UTC

J2000 position of star is 04:20:12.1 +36:28:06
Equinox of date position of star is 04:21:21.1 +36:30:32
Stellar brightness R=14.4, use SENSEUP=64
Star is 108 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=21.2

TNO is 16.0 AU from the Sun and 15.9 AU from the Earth.
The TNO is moving 8.0 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 183 seconds.
The 1-sigma cross-track error in the shadow position is 2135 km.

The TNO has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 13.2 sec chord
Diameter=42.8 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 14UT114, (2018/09/10 13:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:36:59.7 +16:32:44  0.8 20.26 110
44Zet Per      03:55:18.7 +31:56:16  2.8  7.07 114
55 Per         04:25:42.2 +34:10:22  5.5  2.50 108
PPM 069347     04:22:13.2 +36:37:03  7.9  0.19 108
PPM 069336     04:21:28.4 +36:30:52 10.5  0.01 108
14UT114        04:21:26.3 +36:30:43 14.4       107
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 14UT114, (2018/09/10 13:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 20.26 110
44Zet Per      03:54:07.9 +31:53:01  2.8  7.07 114
55 Per         04:24:29.2 +34:07:51  5.5  2.50 108
PPM 069347     04:20:58.8 +36:34:27  7.9  0.19 108
PPM 069336     04:20:14.2 +36:28:15 10.5  0.01 108
14UT114        04:20:12.1 +36:28:06 14.4       108
Positions are for J2000

Event circumstances last updated at 2017/05/19 18:02:47 UT

Marc W. Buie, Southwest Research Institute

RECON