RECON: TNO occultation with 14MF70

Event between 14MF70 and star GA0720:05797785 with event index number of 256388

Geocentric closest approach at 2018/09/23 21:12:08 UTC

J2000 position of star is 15:58:46.6 -16:13:55
Equinox of date position of star is 15:59:50.5 -16:17:03
Stellar brightness G=16.4, use SENSEUP=128
Star is 106 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=22.1

TNO is 34.0 AU from the Sun and 34.4 AU from the Earth.
The TNO is moving 20.5 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 216 seconds.
The 1-sigma cross-track error in the shadow position is 2871 km.

The TNO has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 14.2 sec chord
Diameter=118.8 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14MF70, (2018/09/23 21:12UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:33.5 -26:28:19  0.9 12.44  97
8Bet1Sco       16:06:31.7 -19:51:19  2.6  3.91 103
PPM 230994     15:58:09.0 -16:05:16  6.5  0.45 106
PPM 231045     16:00:17.6 -16:16:26  8.2  0.11 106
14MF70         15:59:50.5 -16:17:03 16.4       106
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 14MF70, (2018/09/23 21:12UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 12.44  97
8Bet1Sco       16:05:26.2 -19:48:20  2.6  3.91 103
PPM 230994     15:57:05.2 -16:02:05  6.5  0.45 106
PPM 231045     15:59:13.7 -16:13:18  8.2  0.11 106
14MF70         15:58:46.6 -16:13:55 16.4       106
Positions are for J2000

Event circumstances last updated at 2018/09/19 17:43:37 UT

Marc W. Buie, Southwest Research Institute

RECON