RECON: TNO occultation with 14LN28

Event between 14LN28 and star GA0820:22244136 with event index number of 230740

Geocentric closest approach at 2019/12/12 20:35:57 UTC

J2000 position of star is 21:54:21.7 -06:14:33
Equinox of date position of star is 21:55:19.8 -06:09:17
Stellar brightness G=15.4, use SENSEUP=128
Star is 120 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=20.9

TNO is 16.8 AU from the Sun and 17.2 AU from the Earth.
The TNO is moving 20.5 km/sec on the sky relative to the star, or, 5.9 arcsec/hr.
The 1-sigma error in the time of the event is 358 seconds.
The 1-sigma cross-track error in the shadow position is 2679 km.

The TNO has an absolute magnitude Hv=8.3
Diameter=134.3 km assuming a 5% albedo -- 6.6 sec chord
Diameter=54.8 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 14LN28, (2019/12/12 20:36UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:44.9 -29:30:58  1.2 27.73 112
Markab         23:05:45.4 +15:18:47  2.5 27.64  95
PPM 205611     21:48:41.2 -05:49:25  6.3  1.70 121
PPM 205778     21:57:08.1 -05:44:02  7.7  0.60 119
PPM 205740     21:55:30.2 -06:07:08  9.6  0.04 120
14LN28         21:55:24.6 -06:08:51 15.4       120
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 14LN28, (2019/12/12 20:36UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 27.73 112
Markab         23:04:45.7 +15:12:18  2.5 27.64  95
PPM 205611     21:47:38.3 -05:55:01  6.3  1.70 121
PPM 205778     21:56:05.4 -05:49:45  7.7  0.60 119
PPM 205740     21:54:27.3 -06:12:50  9.6  0.04 120
14LN28         21:54:21.7 -06:14:33 15.4       120
Positions are for J2000

Event circumstances last updated at 2018/06/12 07:53:50 UT

Marc W. Buie, Southwest Research Institute

RECON